EP1632638A1 - Hydraulic drilling apparatus for confined space work - Google Patents

Hydraulic drilling apparatus for confined space work Download PDF

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Publication number
EP1632638A1
EP1632638A1 EP05291514A EP05291514A EP1632638A1 EP 1632638 A1 EP1632638 A1 EP 1632638A1 EP 05291514 A EP05291514 A EP 05291514A EP 05291514 A EP05291514 A EP 05291514A EP 1632638 A1 EP1632638 A1 EP 1632638A1
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EP
European Patent Office
Prior art keywords
hydraulic
frame
drill
drill according
hydraulic drill
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Granted
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EP05291514A
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German (de)
French (fr)
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EP1632638B1 (en
Inventor
Patrick Ferrand
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I A T S T
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I A T S T
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/022Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • E21B15/045Hydraulic, pneumatic or electric circuits for their positioning
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/027Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes
    • E21B7/028Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes the drilling apparatus being detachable from the vehicle, e.g. hand portable drills

Definitions

  • the present invention relates to a hydraulic drill for work in reduced space directed able to be mounted on a mini-excavator, shovel, backhoe loader, mini loader, loader, truck crane, etc.
  • Such drills have several disadvantages. Indeed, such drills are not easily manageable. This is due to the fact that they are mounted on chassis bottom of excavation or crawler.
  • Such machines can not be used in small spaces such as along safety rails, sidewalks, embankments, etc.
  • US 6 179 068 proposes a drill whose size is adaptable with a portion that can be removed to allow access to confined and reduced areas. But as in the previous case the stem can not be lengthened.
  • the present invention aims to overcome some disadvantages of the prior art by providing a small hydraulic drill and able to work in a variety of positions as well in the bottom of the search as off-excavation while keeping a working power identical to the larger drilling machines.
  • a hydraulic drill consisting of a metal frame having the shape of a rectangular parallelepiped, drilling means located at the front of the frame, a rotation motor for driving the rods during drilling, a hydraulic circuit and an electrical circuit feeding the various components of the drill, characterized in that it can be mounted on the arm of a mini excavator and operate without adding an additional hydraulic unit.
  • the width of the frame is substantially equal to one third of its length.
  • the frame of the drill is connected to the arm of the mini excavator by a turret offering the drill a rotational movement around the axis of the arm of the mini excavator.
  • At least two rings are fixed one above the other on one of the frame of the frame and adapted to receive the lugs of a basket for storing the drill pipe.
  • the basket consists of three U-shaped metal strips arranged substantially parallel to each other and connected by crosspieces arranged substantially perpendicular to the metal strips, a lug ensuring the attachment of the basket to the frame by means of the rings is fixed on each of the crosspieces.
  • the drilling means consist of a trephine guide along which slides a guillotine actuated in two slides by a guillotine jack, the assembly comprising a locking / unlocking system of the drill rods.
  • the drill bit is a rectangular metal piece provided at its center with a bore allowing the passage of the drill rods, which guide is fixed in the lower part of one of the widths of the frame at the height of the sleepers .
  • the guillotine is a rectangular shaped piece having on one of its lengths two teeth separated by a space of dimension substantially equal to that of the diameter of a drill pipe so that the drill pipes are blocked. between the teeth, thus facilitating their handling.
  • the guillotine is arranged substantially parallel to the trephine guide so that it can rub against it.
  • the guillotine is actuated by a jack whose first end is fixed on the length of the guillotine which has no teeth, and the second on a cross member of the frame.
  • the guillotine slides along slides fixed along the amounts of the frame which have a section in the form of H.
  • the sleepers in the lower part of the frame delimit a frame in which is housed a lower frame consisting of two crosspieces disposed substantially parallel to each other and connected together by the bit guide at one of their ends and by a metal plate provided with a bore for lightening the weight of the plate of the other.
  • the rotation motor is fixed on a support consisting of a metal plate provided along each of its lengths of an ear equipped with two ball bearings located on either side of the axis of rotation. symmetry of the ears.
  • each ear is equipped with a rectangular piece fixed in the extension of one of the widths of the ear, the purpose of which is to prevent the support of the rotation motor from derailing when it slides along the cross members of the inner frame.
  • the sliding of the rotational motor support is provided by three jacks arranged substantially parallel to each other in the same horizontal plane and head to tail.
  • the cylinders are rigidly interconnected by three metal parts of circular section and U-shaped and by at least four sleepers on which the metal plate rests.
  • the chassis of the drills is stabilized by means of two jacks arranged along the rails and fixed thereto by means of a metal plate and rings.
  • the free end of the cylinders is constituted by a sphere crimped into a cylindrical piece provided with a conduit for lubricating the sphere.
  • the hydraulic system of the drill is provided with three points of entry of the oil from the hydraulic system of the mini excavator, the third point of entry to increase the operating power of the components of the the drill.
  • the hydraulic system of the drill is provided with a quarter-turn valve for feeding either the rotation motor or the other elements involved in the operation of the drill.
  • the electric system of the drill is connected to the control panel of the mini excavator this system comprises an emergency stop switch, a power supply for a working headlight connected to the cigar lighter of the frame.
  • a power supply for the on-board electronics is mounted in shunt on the power of the working light.
  • the present invention relates to a small hydraulic drill suitable for use with any hydraulic source, such as shovel, backhoe, mini loader, loader, truck crane, etc. and in a preferred embodiment, on a mini-excavator (not shown in the figures).
  • the drill according to the invention consists of a frame (1) in the form of a rectangular parallelepiped.
  • This frame has the particularity of having a width of the order of one third of its length.
  • the frame (1) is connected to the arm of the mini excavator by means of a turret (6) which provides the frame (1) a rotational movement around the axis of the arm of the mini excavator.
  • the frame (1) comprises a plurality of metal plates (101, 102) which act as supports.
  • the support plate (101) located towards the rear (that is to say on the side of the mini excavator) of the frame (1) serves as support for the water pump (not shown in the diagrams), the plate its adjacent metal (102) serves as a support for the hydraulic distributors.
  • a third metal plate (104) is fixed on a cross member (103) located substantially halfway up the frame (1) in the longitudinal direction. This metal plate (103) serves as a support for the control block of the drill.
  • the first ring (11) is substantially at the same height as the supports (101, 102) of the water pump and the hydraulic distributors.
  • the second ring is located substantially spaced between the crossbar (104) on which is fixed the support (103) of the control block and the cross on which are fixed the supports (101, 102) of the pump and the hydraulic distributors.
  • the rings (11) thus arranged ensure the maintenance of a basket (110) for storing drilling rods.
  • the basket (110) consists of three U-shaped metal strips (1101) arranged substantially parallel to one another. Cross members (1102, 1105) hold the strips (1101) in position. Its cross members (1102, 1105) are arranged to be substantially perpendicular to the strips (1101) and are located at the lower and upper ends of the U formed by the strips (1101).
  • two lugs (1104) are each fixed on one of the sleepers (1105) facing the strip (1101) central. These lugs (1104) will take position in the rings (11) located at the front of the frame (1) .
  • the basket (110) is removable.
  • the drilling means are located in the lower part and at the front of the frame (1). These means are composed of a locking / unlocking system (20, 21, 22) rods necessary for the proper conduct of drilling, and pushing means and motorization of drill pipe which will be discussed later.
  • the locking / unblocking means of the rods comprise a trephine guide (20), a guillotine (21), an actuating jack (22) and slides (23).
  • the bit guide is (20) is a rectangular metal piece provided with a cylindrical bore (201) located substantially in the middle. Two of its corners located at each end of the same length are chamfered.
  • the bit guide (20) is fixed on one of the widths of the frame (1) at the height of the cross members (12). The chamfered corners of the bit guide (20) facilitate its placement along the frame (1).
  • the guillotine (21) is a metal piece also of rectangular shape. On one of its lengths, the guillotine (21) has two teeth (211, 212) located substantially in the middle part of the length of the guillotine. Between these teeth (211, 212) is a space (213) whose dimensions correspond substantially to that of the diameter of the rods used for drilling.
  • a space (213) whose dimensions correspond substantially to that of the diameter of the rods used for drilling.
  • the second end (222) of the cylinder (20) is fixed to a crossbar of the frame (1) below the basket (110) when it is placed on the frame (1).
  • This cylinder can raise or lower the guillotine as needed.
  • the guillotine (21) is guided by the slides (23).
  • These slides (23) have an H-shaped section.
  • the finger (231) of the slide (23) is provided with bores (2311) which go allow to fix the slide (23) along the frame uprights (1).
  • the amount of the frame (1) is positioned in the recess (230) of the slide (23) while the guillotine slides in the recess (232) narrowest.
  • the guillotine (21) is disposed substantially parallel to the bit guide (20) so that during its sliding movement, it rubs against the latter.
  • the drill rods are rotated by a hydraulic motor.
  • the guillotine (21) is placed in the raised position, the guillotine jack (22) is then compressed.
  • the guillotine cylinder (22) When it is necessary to add a rod, in order to allow the advancement of drilling, the guillotine cylinder (22) is actuated and the guillotine (21) lowered.
  • the guillotine When the guillotine is lowered, the drill pipe which passes through the bore (201) of the bit guide (20) is locked in the hole (213) by the teeth (211, 212) of the guillotine.
  • the set of teeth (211, 212) / hole (213) acts like an adjustable wrench by blocking the rotation of the rod thus making it possible to fix a new rod. Then simply raise the guillotine to release the rod and ensure the recovery of rotation.
  • the frame (1) is provided with crosspieces (12) arranged along each of its lengths. These cross members delimit a frame in which is housed a lower frame (3).
  • This lower frame (3) consists of two crosspieces (31, 31 ') arranged substantially parallel to each other at a distance substantially corresponding to the width of the trephine guide (20) on which, moreover, they are fixed.
  • a metal plate (32) is fixed between the two crosspieces (31, 31 ').
  • the plate (32) is provided with a bore (321) disposed substantially in the middle thereof. This bore (321) serves to lighten the plate (32) and provides access to the pipework that supplies the motor with rotation of the rods and other hydraulic systems.
  • the two crosspieces (31, 31 ') act as rails whose function will be to guide the rotation motor during its movement back and forth.
  • the support (4) of the rotation motor consists of a metal plate (40) of rectangular shape.
  • An ear (41, 42) is fixed on each of the lengths of the plate (40).
  • a metal piece of rectangular shape (411, 412) is attached in the extension of one of the widths of each ear (41, 42). This piece is fixed on the ear by one of its widths, it makes it possible to prevent derailment of the rotation motor support from the crosspieces (31, 31 ') when it slides parallel to the longitudinal direction of the frame (1 ) in the direction of drilling.
  • Each ear (41, 42) is provided with two ball bearings (43). These ball bearings (43) are located symmetrically with respect to the axis AA of symmetry of the ears (41, 42). One of the ball bearings (43) of each ear is located near the line of attachment of a metal piece (411, 412). These ball bearings (43) facilitate the movement of the rotation motor along the crosspieces (31, 31 ').
  • the displacement of the rotation motor is made possible by the use of three jacks (50, 51, 52). These three cylinders are arranged substantially parallel to each other and in the same horizontal plane.
  • the outermost cylinders (50, 51) are oriented in the same direction, i.e. their pistons are both attached to the same part of the lower frame (3) which can be either the bit guide (20) or the crossbar (322) at the outer end of the plate (32).
  • the central cylinder (52) is arranged so that its piston operates opposite to the pistons of the two outer cylinders (50, 51), that is, when the pistons of the outer cylinders (50, 51) operate in thrust, the piston of the central cylinder (52) operates in traction and vice versa.
  • the three jacks (50, 51, 52) always operate simultaneously to provide more power.
  • the three cylinders (50, 51, 52) are rigidly interconnected by different metal parts.
  • the cylinders (50, 51, 52) are fixed on three metal parts (53, 55) of circular section and shaped U. each cylinder is placed on one of these parts. The legs of U located between two jacks overlap.
  • the cylinders are interconnected by at least two metal sleepers (54, 54 ') arranged to be substantially perpendicular to the cylinders (50, 51, 52).
  • the support (4) of the rotation motor is then fixed on the cylinders (50, 51, 52) via the metal plate (40) on which the rotation motor is based.
  • the rotation motor of the rods drives them in rotation.
  • the rotation motor must be positioned at the front of the frame where the locking / unblocking system of the drill rods is located.
  • the rotation motor is fed through the jacks (50, 51, 52) to the guillotine (21) and the bit guide (20) until it is in contact with these.
  • the rotation motor is driven by the actuation of the cylinders (50, 51, 52) towards the rear of the chassis in the direction of the plate (32).
  • the guillotine jack (22) is actuated and the guillotine (21) is lowered along the bit guide (20) to lock the rod located in the bore (201) of the bit guide (20).
  • the rod in contact with the rotation motor is detached from it before it slides towards the rear of the chassis.
  • a free space is thus created between the motor rod blocked in the trephine guide (20) by the guillotine (21). It only remains to bring a new drill pipe that will be locked in the previous one and bring the rotation motor back to the working position. To remove a drill pipe, simply move the rotation motor back without detaching the rod that was in contact with it.
  • the rod to be removed is linked on one side to the rotation motor and on the other to a drill pipe which is trapped in the drill guide by the guillotine.
  • the drill according to the invention has the advantage of being manageable, this is due on the one hand to its small dimensions, and in particular its small width, and the fact that it can operate in very varied positions.
  • the drill according to the invention is fixed in a preferred embodiment to the arm of a mini excavator. This allows the drill according to the invention to be able to operate in the various inclinations offered by a pendulum movement driven by the jacks of the arm of the shovel.
  • the drill according to the invention is linked to the arm of the mini excavator by means of a turret (6).
  • This turret is composed of at least three metal-shaped plates (60, 61, 62) in the form of a crown.
  • the plate (60) is the plate of larger diameter, it is fixed to the top of the frame (1).
  • the plate (61) of outside diameter less than that of the plate (60) is fixed thereon.
  • the plate (61) is hollow.
  • the plate (61) is surmounted by an ultimate plate (62) of smaller outer diameter than the plate (61).
  • the inner diameters of the three plates (60, 61, 62) are identical, the passage they create in the turret (6) allows the introduction of pipes whose function is to supply oil to the hydraulic circuit of the drilling machine.
  • the turret offers the drill a rotational movement around the axis of the arm of the mini excavator. This movement is made possible by the presence of gears in the turret.
  • the great maneuverability of the drill according to the invention requires the presence of stabilization means so that the drilling can take place under optimum conditions.
  • the drill according to the invention is provided with crutches (7).
  • the crutches (7) are jacks placed on either side of the frame (1) along the cross members (12).
  • the crutches (7) are fixed by means of a metal plate (70) bolted to the crosspieces (12).
  • These plates (70) hold the crutches (7) by means of rings (71) which surround the metal crutches and are fixed on the metal plates (70).
  • Each crutch (7) is thus maintained by at least two rings (71).
  • the end (72) of the pistons of the crutches (7) is free. It ends with a metal sphere (721).
  • These spheres (721) are crimped into cylindrical pieces (73) whose support (731) is a plate that allows the crutches to bear on various supports such as the blade of the mini excavator or the edge of an excavation made in the ground and at the bottom of which drilling must be done.
  • the parts (73) are provided are provided with a duct (732) arranged radially and which opens into the chamber where the sphere (721) is located. This conduit (732) is used to inject a lubricant into the chamber to facilitate the rotation of the sphere.
  • the hydraulic system of the drill according to the invention is powered by the hydraulics of the mini excavator.
  • the hydraulic fluid of the mini excavator enters the hydraulic circuit of the drill according to the invention by two distinct points (P, T) called conventional, and a third point (D) called added drain for the needs of the invention.
  • the conventional entry points (P, T) of the hydraulic circuit lead to a quarter-turn valve (V) mounted in shunt between the rotation motor on the one hand and a distributor on the other hand.
  • the distributor is controlled by the driver of the drill who decides to operate the crutches (7); the guillotine jack (22) or the rest of the circuit, such as for example the jacks (50, 51, 52) which allow the rotation motor to slide, or the water pump.
  • the fluid feed is the rotation motor, which means that a drilling is in progress, ie the distributor, which means if the crutches are actuated that the driver stabilizes the drill before starting the work, if the guillotine cylinder is actuating a drill rod is removed or added, etc ...
  • the third input (D) of the hydraulic circuit completed directly in the part of the circuit which controls inter alia the jacks (50, 51, 52) which allow the rotation motor to slide.
  • This additional input (D) makes it possible to increase the power of the components of the circuit and in particular of the jacks (50, 51, 52) although the invention operates on a small hydraulic source.
  • This additional input (D) makes it possible to avoid the use of auxiliary hydraulic units.
  • the electric circuit of the drill according to the invention is connected to the control panel of the mini excavator.
  • This circuit includes an emergency stop switch (U), a power supply for the hydraulic distributor, as well as a power supply for a working light (Ph).
  • the power supply of the working light (Ph) is provided with a switch (I).
  • a power supply (A) for the on-board electronics is connected in shunt to the power supply of the working light.
  • the working light is not powered directly by the mini excavator but by means of a cigarette lighter mounted on the chassis (1) of the drill. This assembly makes it possible to dispense with the use of a battery to operate the on-board electronics.
  • the embedded electronics consists among other means in transmitting to the driver of the drill the drilling depth, the nature of the soil or the orientation of the drill head.
  • the first drill pipe (80) used is provided with a drill head (81).
  • the drill head (81) has a duckbill shape that allows it to dig the ground.
  • This head (81) is also provided with an on-board electronic system which allows it to send back to the operator information useful for the continuation of the work such as the depth to which it is located.
  • This system is known, it may be for example a reference probe "Eclipse" brand DIGITRAK ⁇ .
  • the drill head (81) When it advances linearly, the drill head (81) is rotated. If the path of the head is to be changed, the operator who directs the maneuver actuates a hydraulic control that stops the rotation of the drill head (81) and applies a thrust.
  • the orientation of the beak of the drill head (81) at the time of the application of the thrust determines the direction in which the drilling will continue. Indeed, if the nozzle is oriented at 9 hours at the time of the application of the thrust, the drill head (81) will go to the right resulting in the following row of drill pipes (80). Similarly, if the spout is oriented at 6 o'clock at the time of thrust, the drill head (81) will sink further into the ground leading thereafter the drill string (80).
  • the orientation of the duckbill of the drill head (81) is known to the operator through the on-board electronic system.

Abstract

A rotary motor drives the drilling rods (80) during a drilling operation. Stabilizing jacks (22) create a resultant coaxial to the axis of the drilling resources. The jacks are arranged to be mounted on an arm of a hydraulic mini-digger located at the extremity connected to a hydraulic source. The jacks are operated without the addition of an extra hydraulic unit.

Description

La présente invention concerne une foreuse hydraulique pour travaux en espace réduit dirigée apte à être montée sur une mini-pelle, pelle, tracto pelle, mini chargeur, chargeur, camion grue, etc.The present invention relates to a hydraulic drill for work in reduced space directed able to be mounted on a mini-excavator, shovel, backhoe loader, mini loader, loader, truck crane, etc.

Il est connu dans l'art antérieur des foreuses hydrauliques standard, jamais sur des mini-pelles.It is known in the prior art of standard hydraulic drills, never on mini-excavators.

C'est ce type de foreuse que décrit le brevet US 5 810 101 avec une foreuse comportant un châssis métallique, des moyens de forage, un moteur de rotation utilisé lors du forage, un circuit hydraulique et un circuit électrique. Le châssis est fixé par son centre au bras de la pelle. Les tiges de forages sont des tiges avec vis hélicoïdales et ne peuvent donc pas être allongées. Dans ce type de foreuse, le forage est donc limité à la longueur de la tige de forage. Cette foreuse est destinée à n'être utilisée qu'avec des pelles conventionnelles de taille normale et non pas des minis pelles.It is this type of drill described in US Pat. No. 5,810,101 with a drilling machine comprising a metal frame, drilling means, a rotation motor used during drilling, a hydraulic circuit and an electrical circuit. The chassis is fixed by its center to the arm of the shovel. The drill rods are rods with helical screws and can not be lengthened. In this type of drill, drilling is limited to the length of the drill pipe. This drill is intended to be used only with conventional shovels of normal size and not mini excavators.

De telles foreuses présentent plusieurs inconvénients. En effet, de telles foreuses ne sont pas facilement maniables. Ceci tient au fait qu'elles sont montées sur châssis fond de fouille ou sur chenille.Such drills have several disadvantages. Indeed, such drills are not easily manageable. This is due to the fact that they are mounted on chassis bottom of excavation or crawler.

Ce manque de maniabilité entraîne le creusement de tranchées souvent larges et profondes nécessaires à la réalisation des travaux mais qui perturbent la vie d'un quartier ou entravent la circulation.This lack of maneuverability leads to the digging of trenches often broad and deep necessary for the realization of the works but which disrupt the life of a district or hinder the circulation.

De telles machines ne peuvent de plus être utilisées dans des espaces réduits comme par exemple le long des glissières de sécurités, trottoirs, talus, etc.Such machines can not be used in small spaces such as along safety rails, sidewalks, embankments, etc.

Le brevet US 6 179 068 propose une foreuse dont la taille est adaptable grâce à une portion qui peut s'enlever pour permettre un accès à des endroits confinés et réduits. Mais comme dans le cas précédent la tige ne peut pas être allongée.US 6 179 068 proposes a drill whose size is adaptable with a portion that can be removed to allow access to confined and reduced areas. But as in the previous case the stem can not be lengthened.

La présente invention a pour but de pallier certains inconvénients de l'art antérieur en proposant une foreuse hydraulique de petite taille et apte à travailler dans des positions les plus diverses aussi bien en fond de fouille que hors fouille tout en gardant une puissance de travail identique aux foreuses de plus grand format.The present invention aims to overcome some disadvantages of the prior art by providing a small hydraulic drill and able to work in a variety of positions as well in the bottom of the search as off-excavation while keeping a working power identical to the larger drilling machines.

Ce but est atteint par un foreuse hydraulique constituée d'un châssis métallique présentant la forme d'un parallélépipède rectangle, de moyens de forages situés à l'avant du châssis, d'un moteur de rotation pour entraîner les tiges au cours du forage, d'un circuit hydraulique et d'un circuit électrique alimentant les divers composants de la foreuse, caractérisé en ce qu'elle peut être montée au bras d'une mini pelle hydraulique et fonctionner sans ajout d'un groupe hydraulique supplémentaire.This purpose is achieved by a hydraulic drill consisting of a metal frame having the shape of a rectangular parallelepiped, drilling means located at the front of the frame, a rotation motor for driving the rods during drilling, a hydraulic circuit and an electrical circuit feeding the various components of the drill, characterized in that it can be mounted on the arm of a mini excavator and operate without adding an additional hydraulic unit.

Selon une autre particularité, la largeur du châssis est sensiblement égale au tiers de sa longueur.According to another feature, the width of the frame is substantially equal to one third of its length.

Selon une autre particularité, le châssis de la foreuse est relié au bras de la mini pelle par une tourelle offrant à la foreuse un mouvement de rotation autours de l'axe du bras de la mini pelle.According to another feature, the frame of the drill is connected to the arm of the mini excavator by a turret offering the drill a rotational movement around the axis of the arm of the mini excavator.

Selon une autre particularité, au moins deux bagues sont fixées l'une au dessus de l'autre sur l'un des montant du châssis et aptes à recevoir les ergots d'un panier servant au stockage des tiges de forage.According to another feature, at least two rings are fixed one above the other on one of the frame of the frame and adapted to receive the lugs of a basket for storing the drill pipe.

Selon une autre particularité, le panier est constitué de trois bandes métalliques en forme de U disposées sensiblement parallèles entre elles et reliées par des traverses disposées sensiblement perpendiculairement aux bandes métalliques, un ergot assurant la fixation du panier sur le châssis par le biais des bagues est fixé sur chacune des traverse.According to another feature, the basket consists of three U-shaped metal strips arranged substantially parallel to each other and connected by crosspieces arranged substantially perpendicular to the metal strips, a lug ensuring the attachment of the basket to the frame by means of the rings is fixed on each of the crosspieces.

Selon une autre particularité, les moyens de forage consistent en un guide trépan le long duquel coulisse une guillotine actionnée dans deux glissières par un vérin de guillotine, l'ensemble comprenant un système de blocage/déblocage des tiges de forage.According to another feature, the drilling means consist of a trephine guide along which slides a guillotine actuated in two slides by a guillotine jack, the assembly comprising a locking / unlocking system of the drill rods.

Selon une autre particularité, le guide trépan est une pièce métallique de forme rectangulaire munie en son centre d'un alésage autorisant le passage des tiges de forage, lequel guide est fixé dans la partie basse d'une des largeurs du châssis à hauteur des traverses.According to another particularity, the drill bit is a rectangular metal piece provided at its center with a bore allowing the passage of the drill rods, which guide is fixed in the lower part of one of the widths of the frame at the height of the sleepers .

Selon une autre particularité, la guillotine est une pièce de forme rectangulaire présentant sur l'une de ses longueurs deux dents séparées par un espace de dimension sensiblement égales à celle du diamètre d'une tige de forage de sorte que les tiges de forage sont bloquées entre les dents facilitant ainsi leur manutention.According to another feature, the guillotine is a rectangular shaped piece having on one of its lengths two teeth separated by a space of dimension substantially equal to that of the diameter of a drill pipe so that the drill pipes are blocked. between the teeth, thus facilitating their handling.

Selon une autre particularité, la guillotine est disposée sensiblement parallèle au guide trépan de sorte qu'elle puisse venir frotter contre celui-ci.According to another feature, the guillotine is arranged substantially parallel to the trephine guide so that it can rub against it.

Selon une autre particularité, la guillotine est actionnée par un vérin dont la première extrémité est fixée sur la longueur de la guillotine qui ne présente pas de dents, et la seconde sur une traverse du châssis.According to another feature, the guillotine is actuated by a jack whose first end is fixed on the length of the guillotine which has no teeth, and the second on a cross member of the frame.

Selon une autre particularité, la guillotine coulisse le long de glissières fixées le long des montants du châssis qui présentent une section en forme de H.According to another feature, the guillotine slides along slides fixed along the amounts of the frame which have a section in the form of H.

Selon une autre particularité, les traverses situées dans la partie inférieure du châssis délimitent un cadre dans lequel se loge un châssis inférieur constitué de deux traverses disposées sensiblement parallèles entre elles et reliées ensemble par le guide trépan à l'une de leurs extrémités et par une plaque métallique munie d'un alésage destiné à alléger le poids de la plaque de l'autre.According to another feature, the sleepers in the lower part of the frame delimit a frame in which is housed a lower frame consisting of two crosspieces disposed substantially parallel to each other and connected together by the bit guide at one of their ends and by a metal plate provided with a bore for lightening the weight of the plate of the other.

Selon une autre particularité, le moteur de rotation est fixé sur un support constitué d'une plaque métallique munie le long de chacune de ses longueurs d'une oreille équipée de deux roulements à billes situés de part et d'autre de l'axe de symétrie des oreilles.According to another feature, the rotation motor is fixed on a support consisting of a metal plate provided along each of its lengths of an ear equipped with two ball bearings located on either side of the axis of rotation. symmetry of the ears.

Selon une autre particularité, chaque oreille est équipée d'une pièce rectangulaire fixée dans le prolongement de l'une des largeurs de l'oreille dont le but est d'empêcher le support du moteur de rotation de dérailler lorsqu'il coulisse le long des traverses du châssis intérieur.According to another particularity, each ear is equipped with a rectangular piece fixed in the extension of one of the widths of the ear, the purpose of which is to prevent the support of the rotation motor from derailing when it slides along the cross members of the inner frame.

Selon une autre particularité, le coulissement du support du moteur de rotation est assuré par trois vérins disposés sensiblement parallèles entre eux dans un même plan horizontal et tête bêche.According to another feature, the sliding of the rotational motor support is provided by three jacks arranged substantially parallel to each other in the same horizontal plane and head to tail.

Selon une autre particularité, les vérins sont liés entre eux de façon rigide par trois pièces métalliques de section circulaire et en forme de U ainsi que par au mois quatre traverses sur lesquelles repose la plaque métallique.According to another feature, the cylinders are rigidly interconnected by three metal parts of circular section and U-shaped and by at least four sleepers on which the metal plate rests.

Selon une autre particularité, une fois en position de travail, le châssis de la foreuses est stabilisé par le biais de deux vérins disposés le long des traverses et fixés à celles-ci au moyen d'une plaque métallique et d'anneaux.According to another feature, once in the working position, the chassis of the drills is stabilized by means of two jacks arranged along the rails and fixed thereto by means of a metal plate and rings.

Selon une autre particularité, l'extrémité libre des vérins est constituée d'une sphère sertie dans une pièce cylindrique munie d'un conduit permettant le graissage de la sphère.According to another feature, the free end of the cylinders is constituted by a sphere crimped into a cylindrical piece provided with a conduit for lubricating the sphere.

Selon une autre particularité, le système hydraulique de la foreuse est doté de trois points d'entrée de l'huile en provenance du système hydraulique de la mini pelle, le troisième point d'entrée permettant d'augmenter la puissance de fonctionnement des composants de la foreuse.In another feature, the hydraulic system of the drill is provided with three points of entry of the oil from the hydraulic system of the mini excavator, the third point of entry to increase the operating power of the components of the the drill.

Selon une autre particularité, le système hydraulique de la foreuse est muni d'une vanne quart de tour permettant d'alimenter soit le moteur de rotation soit les autres éléments participant au fonctionnement de la foreuse.According to another feature, the hydraulic system of the drill is provided with a quarter-turn valve for feeding either the rotation motor or the other elements involved in the operation of the drill.

Selon une autre particularité, le système électrique de la foreuse est branché sur le panneau de commande de la mini pelle ce système comprend un interrupteur d'arrêt d'urgence, une alimentation pour un phare de travail branchée sur l'allume cigare du châssis.In another feature, the electric system of the drill is connected to the control panel of the mini excavator this system comprises an emergency stop switch, a power supply for a working headlight connected to the cigar lighter of the frame.

Selon une autre particularité, une alimentation destinée à l'électronique embarquée est montée en dérivation sur l'alimentation du phare de travail.In another feature, a power supply for the on-board electronics is mounted in shunt on the power of the working light.

D'autres particularités et avantages de la présente invention apparaîtront plus clairement à la lecture de la description ci-après, faite en référence aux dessins annexés, dans lesquels :

  • la figure 1 représente une vue générale de face de la foreuse selon l'invention lorsqu'elle est attachée au bras d'une mini pelle hydraulique,
  • la figure 2 représente une vue de dessus de la foreuse selon l'invention,
  • la figure 3 représente une vue de profil de la foreuse selon l'invention dans une position de travail,
  • la figure 4a représente une vue de profil; la figure 4b représente une vue de face et la figure 4c représente une vue de dessus du châssis de la foreuse selon l'invention,
  • la figure 5 représente une vue de profil, une vue de face, et une vue de dessus du panier,
  • la figure 6 représente une vue de face et en coupe d'une glissière,
  • la figure 7 représente une vue de face et une vue en coupe du guide trépan,
  • la figure 8 représente une vue de face et une vue en coupe de la guillotine,
  • la figure 9 représente une vue de face et de profil du vérin de guillotine,
  • la figure 10 représente une vue de dessus du châssis inférieur,
  • la figure 11 représente une de face et de profil des béquilles ainsi qu'un grossissement de l'extrémité des béquilles,
  • la figure 12 représente une vue éclatée des rails qui assurent le coulissement du moteur de rotation,
  • la figure 13 représente une vue de dessus des vérins permettant le coulissement du moteur de rotation le long du châssis inférieur,
  • la figure 14 représente une vue en coupe de la tourelle permettant la rotation du châssis par rapport à l'axe du bras de la mini pelle,
  • la figure 15 représente une vue de profil d'une plaque constituant la tourelle,
  • la figure 16 représente une vue de dessus de la tourelle,
  • la figure 17 représente le schéma du système hydraulique assurant le fonctionnement des divers éléments constitutifs de la foreuse selon l'invention,
  • la figure 18 représente le schéma électrique assurant le fonctionnement des divers éléments de la foreuse selon l'invention.
Other features and advantages of the present invention will appear more clearly on reading the description below, made with reference to the accompanying drawings, in which:
  • FIG. 1 represents a general front view of the drill according to the invention when it is attached to the arm of a mini excavator,
  • FIG. 2 represents a view from above of the drill according to the invention,
  • FIG. 3 represents a profile view of the drill according to the invention in a working position,
  • Figure 4a shows a side view; FIG. 4b represents a front view and FIG. 4c represents a view from above of the chassis of the drill according to the invention,
  • FIG. 5 represents a profile view, a front view, and a top view of the basket,
  • FIG. 6 represents a front view and in section of a slide,
  • FIG. 7 represents a front view and a sectional view of the trephine guide,
  • FIG. 8 represents a front view and a sectional view of the guillotine,
  • FIG. 9 represents a front and side view of the guillotine jack,
  • FIG. 10 represents a view from above of the lower frame,
  • FIG. 11 represents a face and profile of the crutches and a magnification of the end of the crutches,
  • FIG. 12 represents an exploded view of the rails which ensure the sliding of the rotation motor,
  • FIG. 13 represents a view from above of the jacks allowing the rotation motor to slide along the lower frame,
  • FIG. 14 represents a sectional view of the turret allowing the chassis to rotate relative to the axis of the arm of the mini excavator,
  • FIG. 15 represents a profile view of a plate constituting the turret,
  • FIG. 16 represents a view from above of the turret,
  • FIG. 17 represents the diagram of the hydraulic system ensuring the operation of the various constituent elements of the drill according to the invention,
  • Figure 18 shows the electrical diagram ensuring the operation of the various elements of the drill according to the invention.

La présente invention concerne une foreuse hydraulique de petite taille apte à être utilisée avec n'importe quelle source hydraulique, comme par exemple pelle, tracto pelle, mini-chargeur, chargeur, camion grue, etc. et dans un mode préféré de réalisation, sur une mini-pelle hydraulique (non représentée sur les figures).The present invention relates to a small hydraulic drill suitable for use with any hydraulic source, such as shovel, backhoe, mini loader, loader, truck crane, etc. and in a preferred embodiment, on a mini-excavator (not shown in the figures).

La foreuse selon l'invention est constituée d'un châssis (1) en forme de parallélépipède rectangle. Ce châssis présente la particularité d'avoir une largeur de l'ordre du tiers de sa longueur. Dans sa partie haute, le châssis (1) est relié au bras de la mini-pelle hydraulique par le biais d'une tourelle (6) qui offre au châssis (1) un mouvement de rotation autours de l'axe du bras de la mini-pelle.The drill according to the invention consists of a frame (1) in the form of a rectangular parallelepiped. This frame has the particularity of having a width of the order of one third of its length. In its upper part, the frame (1) is connected to the arm of the mini excavator by means of a turret (6) which provides the frame (1) a rotational movement around the axis of the arm of the mini excavator.

Dans sa partie supérieure, le châssis (1) comporte plusieurs plaques métalliques (101, 102) qui jouent le rôle de supports. La plaque de support (101) située vers l'arrière (c'est à dire du côté de la mini-pelle hydraulique) du châssis (1) sert de support à la pompe à eau (non représentée sur les schémas), la plaque métallique qui lui est adjacente (102) quant à elle, sert de support aux distributeurs hydrauliques. Une troisième plaque métallique (104) est fixée sur une traverse (103) localisée sensiblement à mi-hauteur du châssis (1) dans le sens de la longueur. Cette plaque métallique (103) sert de support au bloc de commande de la foreuse.In its upper part, the frame (1) comprises a plurality of metal plates (101, 102) which act as supports. The support plate (101) located towards the rear (that is to say on the side of the mini excavator) of the frame (1) serves as support for the water pump (not shown in the diagrams), the plate its adjacent metal (102) serves as a support for the hydraulic distributors. A third metal plate (104) is fixed on a cross member (103) located substantially halfway up the frame (1) in the longitudinal direction. This metal plate (103) serves as a support for the control block of the drill.

A l'avant du châssis (1), du côté extérieur de l'une des arrêtes constituée par les montants du châssis, se trouvent deux bagues (11) situées l'une au dessous de l'autre. La première bague (11) se situe sensiblement à la même hauteur que les supports (101, 102) de la pompe à eau et des distributeurs hydrauliques. La seconde bague se situe sensiblement à mis distance entre la traverse (104) sur laquelle est fixé le support (103) du bloc de commande et la traverse sur laquelle sont fixés les supports (101, 102) de la pompe et des distributeurs hydrauliques.At the front of the frame (1), on the outer side of one of the edges formed by the amounts of the frame, are two rings (11) located one below the other. The first ring (11) is substantially at the same height as the supports (101, 102) of the water pump and the hydraulic distributors. The second ring is located substantially spaced between the crossbar (104) on which is fixed the support (103) of the control block and the cross on which are fixed the supports (101, 102) of the pump and the hydraulic distributors.

Les bagues (11) ainsi disposées assurent le maintient d'un panier (110) destiné au stockage des tiges de forages. Le panier (110) est constitué de trois bandes métalliques (1101) en formes de U disposées sensiblement parallèles entre elles. Des traverses (1102, 1105) maintiennent les bandes (1101) en position. Ses traverses (1102, 1105) sont disposées de sorte à être sensiblement perpendiculaires aux bandes (1101) et sont situées aux extrémités inférieures et supérieures du U formé par les bandes (1101). A l'arrière du panier (110), deux ergots (1104) sont fixés chacun sur l'une des traverses (1105) en regard de la bande (1101) centrale. Ces ergots (1104) vont prendre position dans les bagues (11) situées à l'avant du châssis (1).Le panier (110) est amovible.The rings (11) thus arranged ensure the maintenance of a basket (110) for storing drilling rods. The basket (110) consists of three U-shaped metal strips (1101) arranged substantially parallel to one another. Cross members (1102, 1105) hold the strips (1101) in position. Its cross members (1102, 1105) are arranged to be substantially perpendicular to the strips (1101) and are located at the lower and upper ends of the U formed by the strips (1101). AT the back of the basket (110), two lugs (1104) are each fixed on one of the sleepers (1105) facing the strip (1101) central. These lugs (1104) will take position in the rings (11) located at the front of the frame (1) .The basket (110) is removable.

Les moyens de forages se situent dans la partie inférieure et à l'avant du châssis (1). Ces moyens sont composés d'un système de blocage/déblocage (20, 21, 22) des tiges nécessaires à la bonne conduite du forage, et de moyens de poussée et de motorisation des tiges de forage dont il sera discuté plus loin.The drilling means are located in the lower part and at the front of the frame (1). These means are composed of a locking / unlocking system (20, 21, 22) rods necessary for the proper conduct of drilling, and pushing means and motorization of drill pipe which will be discussed later.

Les moyens de blocage/déblocage des tiges comprennent un guide trépan (20), une guillotine (21), un vérin d'actionnement (22) et des glissières (23).The locking / unblocking means of the rods comprise a trephine guide (20), a guillotine (21), an actuating jack (22) and slides (23).

Le guide trépan est (20) est une pièce métallique de forme rectangulaire munie d'un alésage cylindrique (201) situé sensiblement en son milieu. Deux de ses coins situés à chacune des extrémités d'une même longueur sont chanfreinés. Le guide trépan (20) est fixé sur l'une des largeurs du châssis (1) à la hauteur des traverses (12). Les coins chanfreinés du guide trépan (20) facilitent sa mise en place le long du châssis (1).The bit guide is (20) is a rectangular metal piece provided with a cylindrical bore (201) located substantially in the middle. Two of its corners located at each end of the same length are chamfered. The bit guide (20) is fixed on one of the widths of the frame (1) at the height of the cross members (12). The chamfered corners of the bit guide (20) facilitate its placement along the frame (1).

La guillotine (21) est une pièce métallique elle aussi de forme rectangulaire. Sur une de ses longueurs, la guillotine (21) présente deux dents (211, 212) situées sensiblement dans la partie médiane de la longueur de la guillotine. Entre ces dents (211, 212) se trouve un espace (213) dont les dimensions correspondent sensiblement à celle du diamètre des tiges utilisées pour le forage. Sur la longueur de la guillotine (21) opposée à celle munie des dents (211, 212), vient se fixer l'extrémité (221) d'un vérin (22) dont le rôle est d'actionner la guillotine (21). La seconde extrémité (222) du vérin (20) est fixée sur un traverse du châssis (1) située en dessous du panier (110) lorsque celui-ci est mis en place sur le châssis (1). Ce vérin permet de relever ou d'abaisser la guillotine selon les besoins. Au cours de ces mouvements de coulissement, la guillotine (21) est guidée par les glissières (23). Ces glissières (23) présentent une section en forme de H. Le doigt (231) de la glissière (23) est muni d'alésages (2311) qui vont permettrent de fixer la glissière (23) le long des montants du châssis (1). Le montant du châssis (1) se positionne dans le creux (230) de la glissière (23) alors que la guillotine coulisse dans le creux (232) le plus étroit.The guillotine (21) is a metal piece also of rectangular shape. On one of its lengths, the guillotine (21) has two teeth (211, 212) located substantially in the middle part of the length of the guillotine. Between these teeth (211, 212) is a space (213) whose dimensions correspond substantially to that of the diameter of the rods used for drilling. Along the length of the guillotine (21) opposite that provided with the teeth (211, 212), is fixed the end (221) of a jack (22) whose role is to actuate the guillotine (21). The second end (222) of the cylinder (20) is fixed to a crossbar of the frame (1) below the basket (110) when it is placed on the frame (1). This cylinder can raise or lower the guillotine as needed. During these sliding movements, the guillotine (21) is guided by the slides (23). These slides (23) have an H-shaped section. The finger (231) of the slide (23) is provided with bores (2311) which go allow to fix the slide (23) along the frame uprights (1). The amount of the frame (1) is positioned in the recess (230) of the slide (23) while the guillotine slides in the recess (232) narrowest.

La guillotine (21) est disposée sensiblement parallèle au guide trépan (20) de sorte qu'au cours de son mouvement de coulissement, elle frotte contre ce dernier.The guillotine (21) is disposed substantially parallel to the bit guide (20) so that during its sliding movement, it rubs against the latter.

Lorsque la foreuse selon l'invention est en fonctionnement, les tiges de forages sont entraînées en rotation par un moteur hydraulique. Afin de permettre cette rotation des tiges de forage, la guillotine (21) est mise en position relevée, le vérin de guillotine (22) est alors comprimé.When the drill according to the invention is in operation, the drill rods are rotated by a hydraulic motor. In order to allow this rotation of the drill rods, the guillotine (21) is placed in the raised position, the guillotine jack (22) is then compressed.

Lorsqu'il faut rajouter une tige, afin de permettre l'avancement du forage, le vérin de guillotine (22) est actionné et la guillotine (21) abaissée. Quand la guillotine s'abaisse, la tige de forage qui passe par l'alésage (201) du guide trépan (20) est bloquée dans le trou (213) par les dents (211, 212) de la guillotine. L'ensemble dents (211, 212)/trou (213) agit comme une clé à molette en bloquant la rotation de la tige permettant ainsi de fixer une nouvelle tige. Il suffit ensuite de relever la guillotine pour libérer la tige et assurer la reprise de la rotation.When it is necessary to add a rod, in order to allow the advancement of drilling, the guillotine cylinder (22) is actuated and the guillotine (21) lowered. When the guillotine is lowered, the drill pipe which passes through the bore (201) of the bit guide (20) is locked in the hole (213) by the teeth (211, 212) of the guillotine. The set of teeth (211, 212) / hole (213) acts like an adjustable wrench by blocking the rotation of the rod thus making it possible to fix a new rod. Then simply raise the guillotine to release the rod and ensure the recovery of rotation.

A son extrémité inférieure, le châssis (1) est muni de traverses (12) disposées le long de chacune de ses longueurs. Ces traverses délimitent un cadre dans lequel vient se loger un châssis inférieur (3). Ce châssis inférieur (3) est constitué de deux traverses (31, 31') disposées sensiblement parallèles entre elles à une distance correspondant sensiblement à la largeur du guide trépan (20) sur lequel, d'ailleurs, elles viennent se fixer. A l'opposé du guide trépan (20), une plaque métallique (32) est fixée entre les deux traverses (31, 31'). La plaque (32) est munie d'un alésage (321) disposé sensiblement en son milieu. Cet alésage (321) permet d'alléger la plaque (32) et offre un accès à la tuyauterie qui alimente le moteur de rotation des tiges et d'autres systèmes hydrauliques. les deux traverses (31, 31') jouent le rôle de rails dont la fonction sera de guider le moteur de rotation au cours de son mouvement de va et vient.At its lower end, the frame (1) is provided with crosspieces (12) arranged along each of its lengths. These cross members delimit a frame in which is housed a lower frame (3). This lower frame (3) consists of two crosspieces (31, 31 ') arranged substantially parallel to each other at a distance substantially corresponding to the width of the trephine guide (20) on which, moreover, they are fixed. Opposite the bit guide (20), a metal plate (32) is fixed between the two crosspieces (31, 31 '). The plate (32) is provided with a bore (321) disposed substantially in the middle thereof. This bore (321) serves to lighten the plate (32) and provides access to the pipework that supplies the motor with rotation of the rods and other hydraulic systems. the two crosspieces (31, 31 ') act as rails whose function will be to guide the rotation motor during its movement back and forth.

Le support (4) du moteur de rotation est constitué d'une plaque métallique (40) de forme rectangulaire. Une oreille (41, 42) vient se fixer sur chacune des longueurs de la plaque (40). Une pièce métallique de forme rectangulaire (411, 412) vient se fixer dans le prolongement de l'une des largeurs de chaque oreille (41, 42). Cette pièce est fixer sur les oreille par l'une de ses largeurs, elle permet d'empêcher le déraillement du support du moteur de rotation hors des traverses (31, 31') lorsque celui-ci coulisse parallèlement au sens longitudinal du châssis (1) dans le sens du forage. Chaque oreille (41, 42) est pourvue de deux roulements à billes (43). Ces roulements à billes (43) sont situés de façon symétrique par rapport à l'axe AA de symétrie des oreilles (41, 42). L'un des roulements à billes (43) de chaque oreille est situé proche de la ligne de fixation d'une pièce métallique (411, 412). Ces roulements à billes (43) facilitent le déplacement du moteur de rotation le long des traverses (31, 31').The support (4) of the rotation motor consists of a metal plate (40) of rectangular shape. An ear (41, 42) is fixed on each of the lengths of the plate (40). A metal piece of rectangular shape (411, 412) is attached in the extension of one of the widths of each ear (41, 42). This piece is fixed on the ear by one of its widths, it makes it possible to prevent derailment of the rotation motor support from the crosspieces (31, 31 ') when it slides parallel to the longitudinal direction of the frame (1 ) in the direction of drilling. Each ear (41, 42) is provided with two ball bearings (43). These ball bearings (43) are located symmetrically with respect to the axis AA of symmetry of the ears (41, 42). One of the ball bearings (43) of each ear is located near the line of attachment of a metal piece (411, 412). These ball bearings (43) facilitate the movement of the rotation motor along the crosspieces (31, 31 ').

Le déplacement du moteur de rotation est rendu possible par l'utilisation de trois vérins (50, 51, 52). Ces trois vérins sont disposés sensiblement parallèles entre eux et dans un même plan horizontal. Les vérins (50, 51) les plus externes sont orientés dans la même direction, c'est-à-dire que leur pistons sont tous deux fixés sur la même partie du châssis inférieur (3) qui peut être soit le guide trépan (20) soit la traverse (322) située à l'extrémité externe de la plaque (32). Le vérin central (52) est disposé de sorte que son piston fonctionne de façon opposée aux pistons des deux vérins externes (50, 51), autrement dit, quand les pistons des vérins externes (50, 51) fonctionnent en poussée, le piston du vérin central (52) fonctionne en traction et réciproquement. Les trois vérins (50, 51, 52) fonctionnent toujours simultanément afin de fournir plus de puissance.The displacement of the rotation motor is made possible by the use of three jacks (50, 51, 52). These three cylinders are arranged substantially parallel to each other and in the same horizontal plane. The outermost cylinders (50, 51) are oriented in the same direction, i.e. their pistons are both attached to the same part of the lower frame (3) which can be either the bit guide (20) or the crossbar (322) at the outer end of the plate (32). The central cylinder (52) is arranged so that its piston operates opposite to the pistons of the two outer cylinders (50, 51), that is, when the pistons of the outer cylinders (50, 51) operate in thrust, the piston of the central cylinder (52) operates in traction and vice versa. The three jacks (50, 51, 52) always operate simultaneously to provide more power.

Les trois vérins (50, 51, 52) sont liés entre eux de façon rigide par différentes pièces métalliques. Dans un premier temps, les vérins (50, 51, 52) sont fixés sur trois pièces métalliques (53, 55) de section circulaire et mises en forme de U. chaque vérin est posé sur l'une de ces pièces. Les pattes des U situées entre deux vérins se chevauchent. Dans un second temps, les vérins sont liés entre eux par au moins deux traverses métalliques (54, 54') disposées de sorte à être sensiblement perpendiculaires aux vérins (50, 51, 52).The three cylinders (50, 51, 52) are rigidly interconnected by different metal parts. First, the cylinders (50, 51, 52) are fixed on three metal parts (53, 55) of circular section and shaped U. each cylinder is placed on one of these parts. The legs of U located between two jacks overlap. In a second step, the cylinders are interconnected by at least two metal sleepers (54, 54 ') arranged to be substantially perpendicular to the cylinders (50, 51, 52).

Le support (4) du moteur de rotation est ensuite fixé sur les vérins (50, 51, 52) par l'intermédiaire de la plaque métallique (40) sur laquelle repose le moteur de rotation.The support (4) of the rotation motor is then fixed on the cylinders (50, 51, 52) via the metal plate (40) on which the rotation motor is based.

En cours de forage, le moteur de rotation des tiges entraîne celles-ci en rotation. Pour se faire, le moteur de rotation doit être positionné à l'avant du châssis où se trouve le système de blocage/déblocage des tiges de forage. Lorsqu'il est en position de travail, le moteur de rotation est amené par le biais des vérins (50, 51, 52) vers la guillotine (21) et le guide trépan (20) jusqu'à ce qu'il soit en contact avec ceux-ci. Lorsqu'il faut rajouter ou enlever une tige de forage, le moteur de rotation est entraîné par l'actionnement des vérins (50, 51, 52) vers l'arrière du châssis en direction de la plaque (32). Simultanément, le vérin de guillotine (22) est actionné et la guillotine (21) s'abaisse le long du guide trépan (20) afin de bloquer la tige située dans l'alésage (201) du guide trépan (20). Pour ajouter une tige, il suffit que la tige en contact avec le moteur de rotation soit détachée de celui-ci avant qu'il ne coulisse vers l'arrière du châssis. Un espace libre est ainsi créé entre le moteur la tige bloquée dans le guide trépan (20) par la guillotine (21). Il ne reste plus qu'à amener une nouvelle tige de forage qui sera bloquée dans la précédente et de ramener le moteur de rotation en position de travail. Pour enlever une tige de forage, il suffit de faire reculer le moteur de rotation sans avoir détachée la tige qui se trouvait en contact avec lui. La tige qui doit être retirée est liée d'un côté au moteur de rotation et de l'autre à une tige de forage qui se retrouve bloquée dans la guide trépan par la guillotine. Une fois la tige liée au moteur de rotation dévissée et retirée, le moteur est ramené dans sa position de travail et entraîne en rotation la tige située dans le guide trépan et qui a été préalablement libérée de la guillotine.While drilling, the rotation motor of the rods drives them in rotation. To do this, the rotation motor must be positioned at the front of the frame where the locking / unblocking system of the drill rods is located. When in the working position, the rotation motor is fed through the jacks (50, 51, 52) to the guillotine (21) and the bit guide (20) until it is in contact with these. When adding or removing a drill pipe, the rotation motor is driven by the actuation of the cylinders (50, 51, 52) towards the rear of the chassis in the direction of the plate (32). Simultaneously, the guillotine jack (22) is actuated and the guillotine (21) is lowered along the bit guide (20) to lock the rod located in the bore (201) of the bit guide (20). To add a rod, it is sufficient that the rod in contact with the rotation motor is detached from it before it slides towards the rear of the chassis. A free space is thus created between the motor rod blocked in the trephine guide (20) by the guillotine (21). It only remains to bring a new drill pipe that will be locked in the previous one and bring the rotation motor back to the working position. To remove a drill pipe, simply move the rotation motor back without detaching the rod that was in contact with it. The rod to be removed is linked on one side to the rotation motor and on the other to a drill pipe which is trapped in the drill guide by the guillotine. Once the rod connected to the rotational motor unscrewed and removed, the motor is returned to its working position and rotates the rod located in the trephine guide and has been previously released from the guillotine.

La foreuse selon l'invention présente l'avantage d'être maniable, ceci est dû d'une part à ses petites dimensions, et notamment sa petite largeur, ainsi qu'au fait qu'elle peut fonctionner dans des positions très variées.The drill according to the invention has the advantage of being manageable, this is due on the one hand to its small dimensions, and in particular its small width, and the fact that it can operate in very varied positions.

La foreuse selon l'invention est fixée, dans un mode de réalisation préféré au bras d'une mini pelle hydraulique. Ceci permet à la foreuse selon l'invention de pouvoir fonctionner dans les diverses inclinaisons qu'offre un mouvement pendulaire entraîné par les vérins du bras de la pelle.The drill according to the invention is fixed in a preferred embodiment to the arm of a mini excavator. This allows the drill according to the invention to be able to operate in the various inclinations offered by a pendulum movement driven by the jacks of the arm of the shovel.

La foreuse selon l'invention est liée au bras de la mini pelle par le biais d'une tourelle (6). Cette tourelle est composée d'au moins trois plaques (60, 61, 62) métalliques en forme de couronne. La plaque (60) est la plaque de plus grand diamètre, elle est fixée au sommet du châssis (1). La plaque (61) de diamètre extérieur inférieur à celui de la plaque (60) vient se fixer sur celle-ci. La plaque (61) est creuse. Enfin, la plaque (61) est surmontée d'une ultime plaque (62) de plus petit diamètre extérieur que la plaque (61). Les diamètres intérieurs des trois plaques (60, 61, 62) sont identiques, le passage qu'ils créent au sein de la tourelle (6) permet d'introduire des tuyaux dont la fonction est d'alimenter en huile le circuit hydraulique de la foreuse.The drill according to the invention is linked to the arm of the mini excavator by means of a turret (6). This turret is composed of at least three metal-shaped plates (60, 61, 62) in the form of a crown. The plate (60) is the plate of larger diameter, it is fixed to the top of the frame (1). The plate (61) of outside diameter less than that of the plate (60) is fixed thereon. The plate (61) is hollow. Finally, the plate (61) is surmounted by an ultimate plate (62) of smaller outer diameter than the plate (61). The inner diameters of the three plates (60, 61, 62) are identical, the passage they create in the turret (6) allows the introduction of pipes whose function is to supply oil to the hydraulic circuit of the drilling machine.

La tourelle offre à la foreuse un mouvement de rotation autour de l'axe du bras de la mini pelle. Ce mouvement est rendu possible par la présence d'engrenages dans la tourelle.The turret offers the drill a rotational movement around the axis of the arm of the mini excavator. This movement is made possible by the presence of gears in the turret.

La grande maniabilité de la foreuse selon l'invention nécessite la présence de moyens de stabilisation afin que le forage puisse se dérouler dans des conditions optimum.The great maneuverability of the drill according to the invention requires the presence of stabilization means so that the drilling can take place under optimum conditions.

Pour se faire, la foreuse selon l'invention est munie de béquilles (7). Les béquilles (7) sont des vérins placés de part et d'autre du châssis (1) le long des traverses (12). La fixation des béquilles (7) est assurée par une plaque métallique (70) boulonnée sur les traverses (12). Ces plaques (70) retiennent les béquilles (7) par le biais d'anneaux (71) métalliques qui entourent les béquilles et viennent se fixer sur les plaques métalliques (70). Chaque béquille (7) est ainsi maintenue par au moins deux anneaux (71). L'extrémité (72) des pistons des béquilles (7) est libre. Elle se termine par une sphère (721) métallique. Ces sphères (721) sont serties dans des pièces (73) cylindriques dont le support (731) est une plaque qui permet aux béquilles de prendre appui sur divers supports comme la lame de la mini pelle ou encore le bord d'une excavation pratiquée dans le sol et au fond de laquelle un forage doit être pratiqué. Les pièces (73) sont munies sont munies d'un conduit (732) disposé radialement et qui débouche dans la chambre où se situe la sphère (721). Ce conduit (732) permet d'injecter un lubrifiant dans la chambre afin de faciliter la rotation de la sphère.To do this, the drill according to the invention is provided with crutches (7). The crutches (7) are jacks placed on either side of the frame (1) along the cross members (12). The crutches (7) are fixed by means of a metal plate (70) bolted to the crosspieces (12). These plates (70) hold the crutches (7) by means of rings (71) which surround the metal crutches and are fixed on the metal plates (70). Each crutch (7) is thus maintained by at least two rings (71). The end (72) of the pistons of the crutches (7) is free. It ends with a metal sphere (721). These spheres (721) are crimped into cylindrical pieces (73) whose support (731) is a plate that allows the crutches to bear on various supports such as the blade of the mini excavator or the edge of an excavation made in the ground and at the bottom of which drilling must be done. The parts (73) are provided are provided with a duct (732) arranged radially and which opens into the chamber where the sphere (721) is located. This conduit (732) is used to inject a lubricant into the chamber to facilitate the rotation of the sphere.

Le système hydraulique de la foreuse selon l'invention est alimenté par l'hydraulique de la mini pelle. Le liquide de l'hydraulique de la mini pelle entre dans le circuit hydraulique de la foreuse selon l'invention par deux points distincts (P, T) dits classiques, et un troisième point (D) appelé drain ajouté pour les besoins de l'invention. Les points d'entrée classiques (P, T) du circuit hydraulique aboutissent sur une vanne quart de tour (V) montée en dérivation entre le moteur de rotation d'une part et un distributeur d'autre part. le distributeur est commandé par le chauffeur de la foreuse qui décide de faire fonctionner les béquilles (7); le vérin de guillotine (22) ou le reste du circuit, comme par exemple les vérins (50, 51, 52) qui autorisent le coulissement du moteur de rotation, ou encore la pompe à eau. Selon l'orientation de la vanne quart de tour (V), le liquide aliment soit le moteur de rotation, ce qui signifie qu'un forage est en cours, soit le distributeur, ce qui signifie si les béquilles sont actionnée que le chauffeur stabilise la foreuse avant de commencer les travaux, si le vérin de guillotine est actionner qu'une tige de forage est enlevée ou rajoutée, etc... La troisième entrée (D) du circuit hydraulique aboutie directement dans la partie du circuit qui commande entre autre les vérins (50, 51, 52) qui autorisent le coulissement du moteur de rotation. Cette entrée supplémentaire (D) permet d'augmenter la puissance des composants du circuit et notamment des vérins (50, 51, 52) bien que l'invention fonctionne sur une petite source hydraulique. Cette entrée supplémentaire (D) permet d'éviter l'utilisation de groupes hydrauliques annexes.The hydraulic system of the drill according to the invention is powered by the hydraulics of the mini excavator. The hydraulic fluid of the mini excavator enters the hydraulic circuit of the drill according to the invention by two distinct points (P, T) called conventional, and a third point (D) called added drain for the needs of the invention. The conventional entry points (P, T) of the hydraulic circuit lead to a quarter-turn valve (V) mounted in shunt between the rotation motor on the one hand and a distributor on the other hand. the distributor is controlled by the driver of the drill who decides to operate the crutches (7); the guillotine jack (22) or the rest of the circuit, such as for example the jacks (50, 51, 52) which allow the rotation motor to slide, or the water pump. Depending on the orientation of the quarter-turn valve (V), the fluid feed is the rotation motor, which means that a drilling is in progress, ie the distributor, which means if the crutches are actuated that the driver stabilizes the drill before starting the work, if the guillotine cylinder is actuating a drill rod is removed or added, etc ... The third input (D) of the hydraulic circuit completed directly in the part of the circuit which controls inter alia the jacks (50, 51, 52) which allow the rotation motor to slide. This additional input (D) makes it possible to increase the power of the components of the circuit and in particular of the jacks (50, 51, 52) although the invention operates on a small hydraulic source. This additional input (D) makes it possible to avoid the use of auxiliary hydraulic units.

Le circuit électrique de la foreuse selon l'invention est branché sur le tableau de commande de la mini pelle. Ce circuit comprend un interrupteur d'arrêt d'urgence (U), une alimentation pour le distributeur hydraulique, ainsi qu'une alimentation pour un phare de travail (Ph). L'alimentation du phare de travail (Ph) est munie d'un interrupteur (I). Une alimentation (A) pour l'électronique embarqué est montée en dérivation sur l'alimentation du phare de travail. Le phare de travail n'est pas alimenté directement par la mini pelle mais par le biais d'un allume cigare monté sur le châssis (1) de la foreuse. Ce montage permet de se dispenser de l'utilisation d'une batterie pour faire fonctionner l'électronique embarquée.The electric circuit of the drill according to the invention is connected to the control panel of the mini excavator. This circuit includes an emergency stop switch (U), a power supply for the hydraulic distributor, as well as a power supply for a working light (Ph). The power supply of the working light (Ph) is provided with a switch (I). A power supply (A) for the on-board electronics is connected in shunt to the power supply of the working light. The working light is not powered directly by the mini excavator but by means of a cigarette lighter mounted on the chassis (1) of the drill. This assembly makes it possible to dispense with the use of a battery to operate the on-board electronics.

L'électronique embarquée consiste entre autre en des moyens de transmettre au chauffeur de la foreuse la profondeur de forage, la nature du sol ou encore l'orientation de la tête de forage.The embedded electronics consists among other means in transmitting to the driver of the drill the drilling depth, the nature of the soil or the orientation of the drill head.

Au début de l'opération de forage, la première tige de forage (80) utilisée est munie d'une tête de forage (81). La tête de forage (81) présente une forme en bec de canard qui lui permet de creuser le sol. Cette tête (81) est également munie d'un système électronique embarqué qui lui permet de renvoyer à l'opérateur des informations utiles à la poursuite des travaux comme par exemple la profondeur à laquelle elle se situe. Ce système est connu, il peut s'agir par exemple d'une sonde de référence « Eclipse» de la marque DIGITRAK→.At the beginning of the drilling operation, the first drill pipe (80) used is provided with a drill head (81). The drill head (81) has a duckbill shape that allows it to dig the ground. This head (81) is also provided with an on-board electronic system which allows it to send back to the operator information useful for the continuation of the work such as the depth to which it is located. This system is known, it may be for example a reference probe "Eclipse" brand DIGITRAK →.

Lorsqu'elle avance linéairement, la tête de forage (81) se trouve en rotation. Si la trajectoire de la tête doit être modifiée, l'opérateur qui dirige la manoeuvre actionne une commande hydraulique qui arrête la rotation de la tête de forage (81) et lui applique une poussée. L'orientation du bec de la tête de forage (81) au moment de l'application de la poussée détermine la direction dans laquelle le forage va se poursuivre. En effet, si le bec est orienté à 9 heures au moment de l'application de la poussée, la tête de forage (81) va partir vers la droite entraînant à sa suite la file de tiges de forage (80). De même, si le bec est orienté à 6 heures au moment de la poussée, la tête de forage (81) va s'enfoncer d'avantage dans le sol entraînant à sa suite la file de tiges de forage (80). L'orientation du bec de canard de la tête de forage (81) est connue de l'opérateur par le biais du système électronique embarqué.When it advances linearly, the drill head (81) is rotated. If the path of the head is to be changed, the operator who directs the maneuver actuates a hydraulic control that stops the rotation of the drill head (81) and applies a thrust. The orientation of the beak of the drill head (81) at the time of the application of the thrust determines the direction in which the drilling will continue. Indeed, if the nozzle is oriented at 9 hours at the time of the application of the thrust, the drill head (81) will go to the right resulting in the following row of drill pipes (80). Similarly, if the spout is oriented at 6 o'clock at the time of thrust, the drill head (81) will sink further into the ground leading thereafter the drill string (80). The orientation of the duckbill of the drill head (81) is known to the operator through the on-board electronic system.

Au cours de l'opération de forage, de l'eau est envoyée dans les tiges (80) et dans la tête de forage (81) afin de faciliter leur avancée dans le sol. En cas d'instabilité du trou obtenu, il est possible d'injecter une mousse prévue à cet effet et qui possède des propriétés de stabilisation des sols. Cette mousse ne nécessite pas d'opération de nettoyage ou de récupération contrairement à d'autres matériaux comme par exemple la bétonite puisqu'elle disparaît automatiquement au fil du temps.During the drilling operation, water is sent into the rods (80) and into the drill bit (81) to facilitate their advance into the ground. In case of instability of the hole obtained, it is possible to inject a foam provided for this purpose and which has soil stabilizing properties. This foam does not require a cleaning or recovery operation unlike other materials such as concreteite since it disappears automatically over time.

Il doit être évident, pour les personnes versées dans l'art, que la présente invention permet des modes de réalisation sous de nombreuses autres formes spécifiques sans l'éloigner du domaine d'application de l'invention comme revendiqué. Par conséquent, les présents modes de réalisation doivent être considérés à titre d'illustration, mais peuvent être modifiés dans le domaine défini par la portée des revendications jointes, et l'invention ne doit pas être limitée aux détails donnés ci-dessus.It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration, but may be modified within the scope defined by the scope of the appended claims, and the invention should not be limited to the details given above.

Claims (25)

Foreuse hydraulique constituée d'un châssis métallique (1) présentant la forme d'un parallélépipède rectangle dont une extrémité, dans le sens de la longueur, est reliée à une source hydraulique, de moyens de forages (20, 21, 22) situés dans la partie inférieure du châssis (1) à l'extrémité opposée à celle reliée à la source hydraulique, d'un moteur de rotation pour entraîner les tiges au cours du forage caractérisée en ce qu'elle comporte des tiges de forages adaptables en longueur dans une direction perpendiculaire aux faces les plus longues du châssis, des moyens de stabilisation montés de façon à créer une résultante coaxiale à l'axe des moyens de forage, des moyens pour être montée au bras d'une mini pelle hydraulique situés à l'extrémité reliée à la source hydraulique et qu'elle fonctionne sans ajout d'un groupe hydraulique supplémentaire.Hydraulic drill consisting of a metal frame (1) having the shape of a rectangular parallelepiped whose end, in the longitudinal direction, is connected to a hydraulic source, drilling means (20, 21, 22) located in the lower part of the frame (1) at the opposite end to that connected to the hydraulic source, a rotation motor for driving the rods during drilling characterized in that it comprises drill rods adaptable in length in a direction perpendicular to the longer faces of the chassis, stabilization means mounted to create a resultant coaxial with the axis of the drilling means, means for being mounted to the arm of a mini excavator located at the end connected to the hydraulic source and that it works without the addition of an additional hydraulic unit. Foreuse hydraulique selon la revendication 1, caractérisée en ce que les moyens de stabilisation sont des vérins (7) stabilisateurs disposés sur des faces opposées de la partie inférieure du châssis (1), une extrémité étant fixée au châssis, l'autre extrémité étant libre.Hydraulic drill according to Claim 1, characterized in that the stabilizing means are stabilizing jacks (7) arranged on opposite faces of the lower part of the frame (1), one end being fixed to the frame, the other end being free . Foreuse hydraulique selon la revendication 2, caractérisée en ce que l'extrémité libre des vérins (7) stabilisateurs comporte une plaque (731) leurs permettant de prendre appui sur divers support.Hydraulic drill according to claim 2, characterized in that the free end of the stabilizing cylinders (7) comprises a plate (731) allowing them to bear on various supports. Foreuse hydraulique selon la revendication 1, caractérisée en ce que la tige de forage est adaptable par ajout d'au moins une tige de forage, identique, à une extrémité.Hydraulic drill according to claim 1, characterized in that the drill pipe is adaptable by adding at least one drill pipe, identical at one end. Foreuse hydraulique selon la revendication 1, caractérisée en ce que la largeur du châssis (1) est sensiblement égale au tiers de sa longueur et légèrement plus longue qu'une tige de forage.Hydraulic drill according to claim 1, characterized in that the width of the frame (1) is substantially equal to one third of its length and slightly longer than a drill pipe. Foreuse hydraulique selon la revendication 1, caractérisée en ce que les moyens permettant de la monter au bras de la mini pelle sont constitués par une tourelle (6), dont les dimensions sont adaptées à celle du bras de la mini pelle, qui relie le châssis (1) de la foreuse au bras de la mini pelle, offrant à la foreuse un mouvement de rotation autours de l'axe du bras de la mini pelle.Hydraulic drill according to claim 1, characterized in that the means for mounting it to the arm of the mini excavator are constituted by a turret (6), whose dimensions are adapted to that of the arm of the mini excavator, which connects the frame (1) of the drill to the arm of the mini excavator, providing the drill a rotational movement around the axis of the arm of the mini excavator. Foreuse hydraulique selon la revendication 1, caractérisée en ce que au moins deux bagues (11) sont fixées l'une au dessus de l'autre sur l'un des montant du châssis (1) et aptes à recevoir les ergots (1104) d'un panier (110) servant au stockage des tiges de forage.Hydraulic drill according to claim 1, characterized in that at least two rings (11) are fixed one above the other on one of the frame uprights (1) and able to receive the lugs (1104) d. a basket (110) for storing the drill pipes. Foreuse hydraulique selon la revendication 4, caractérisée en ce que le panier (110) est constitué de trois bandes métalliques (1101) en forme de U disposées sensiblement parallèles entre elles et reliées par des traverses 1102, 1105) disposées sensiblement perpendiculairement aux bandes métalliques, un ergot (1104) assurant la fixation du panier (110) sur le châssis (1) par le biais des bagues (11) est fixé sur chacune des traverse (1105).Hydraulic drill according to Claim 4, characterized in that the basket (110) consists of three U-shaped metal strips (1101) arranged substantially parallel to one another and connected by cross members 1102, 1105) arranged substantially perpendicular to the metal strips, a lug (1104) for fixing the basket (110) to the frame (1) by means of the rings (11) is fixed on each of the cross members (1105). Foreuse hydraulique selon la revendication 1, caractérisée en ce que les moyens de forage consistent en un guide trépan (20) le long duquel coulisse une guillotine (21) actionnée dans deux glissières (23) par un vérin de guillotine (22), l'ensemble comprenant un système de blocage/déblocage des tiges de forage.Hydraulic drill according to claim 1, characterized in that the drilling means consist of a drill guide (20) along which slides a guillotine (21) actuated in two slides (23) by a guillotine jack (22), the assembly comprising a locking / unblocking system of the drill rods. Foreuse hydraulique selon la revendication 6, caractérisée en ce que le guide trépan (20) est une pièce métallique de forme rectangulaire munie en son centre d'un alésage (201) autorisant le passage des tiges de forage, lequel guide est fixé dans la partie basse d'une des largeurs du châssis (1) à hauteur des traverses (12).Hydraulic drill according to Claim 6, characterized in that the drill guide (20) is a rectangular-shaped metal part provided at its center with a bore (201) permitting the passage of the drill rods, which guide is fixed in the part low one of the widths of the frame (1) at the height of the sleepers (12). Foreuse hydraulique selon la revendication 7, caractérisée en ce que la guillotine (21) est une pièce de forme rectangulaire présentant sur l'une de ses longueurs deux dents (211, 212) séparées par un espace (213) de dimension sensiblement égales à celle du diamètre d'une tige de forage de sorte que les tiges de forage sont bloquées entre les dents (211, 212) facilitant ainsi leur manutention.Hydraulic drill according to claim 7, characterized in that the guillotine (21) is a rectangular-shaped piece having on one of its lengths two teeth (211, 212) separated by a space (213) of dimension substantially equal to that the diameter of a drill pipe so that the drill pipes are locked between the teeth (211, 212) thus facilitating their handling. Foreuse hydraulique selon la revendication 8, caractérisée en ce que la guillotine (21) est disposée sensiblement parallèle au guide trépan (20) de sorte qu'elle puisse venir frotter contre celui-ci.Hydraulic drill according to claim 8, characterized in that the guillotine (21) is arranged substantially parallel to the bit guide (20) so that it can rub against it. Foreuse hydraulique selon la revendication 9, caractérisée en ce que la guillotine (21) est actionnée par un vérin (22) dont la première extrémité (221) est fixée sur la longueur de la guillotine (21) qui ne présente pas de dents, et la seconde (222) sur une traverse du châssis (1).Hydraulic drill according to claim 9, characterized in that the guillotine (21) is actuated by a jack (22) whose first end (221) is fixed along the length of the guillotine (21) which has no teeth, and the second (222) on a frame cross member (1). Foreuse hydraulique selon la revendication 6, caractérisée en ce que la guillotine (21) coulisse le long de glissières (23) fixées le long des montants du châssis (1) qui présentent une section en forme de H.Hydraulic drill according to claim 6, characterized in that the guillotine (21) slides along slides (23) fixed along the frame uprights (1) which have a section in the form of H. Foreuse hydraulique selon la revendication 1, caractérisée en ce que les traverses (12) situées dans la partie inférieure du châssis (1) délimitent un cadre dans lequel se loge un châssis inférieur (3) constitué de deux traverses (31, 31') disposées sensiblement parallèles entre elles et reliées ensemble par le guide trépan (20) à l'une de leurs extrémités et par une plaque métallique (32) munie d'un alésage (321) destiné à alléger le poids de la plaque de l'autre.Hydraulic drill according to Claim 1, characterized in that the cross members (12) situated in the lower part of the frame (1) delimit a frame in which a lower frame (3) consisting of two crosspieces (31, 31 ') arranged substantially parallel to each other and connected together by the bit guide (20) at one of their ends and by a metal plate (32) provided with a bore (321) for lightening the weight of the plate of the other. Foreuse hydraulique selon la revendication 1, caractérisée en ce que le moteur de rotation est fixé sur un support (4) constitué d'une plaque métallique 40munie le long de chacune de ses longueurs d'une oreille (41, 42) équipée de deux roulements à billes (43) situés de part et d'autre de l'axe de symétrie des oreilles (41, 42).Hydraulic drill according to claim 1, characterized in that the rotation motor is fixed on a support (4) consisting of a metal plate 40 provided along each of its lengths of an ear (41, 42) equipped with two bearings. with balls (43) located on either side of the axis of symmetry of the ears (41, 42). Foreuse hydraulique selon la revendication 13, caractérisée en ce que chaque oreille (41, 42) est équipée d'une pièce rectangulaire (411, 412) fixée dans le prolongement de l'une des largeur de l'oreille dont le but est d'empêcher le support du moteur de rotation de dérailler lorsqu'il coulisse le long des traverses (31, 31') du châssis intérieur (3).Hydraulic drill according to Claim 13, characterized in that each lug (41, 42) is equipped with a rectangular piece (411, 412) fixed in the extension of one of the widths of the ear, the purpose of which is preventing the rotational motor bracket from derailing as it slides along the sleepers (31, 31 ') of the inner frame (3). Foreuse hydraulique selon la revendication 13, caractérisée en ce que le coulissement du support du moteur de rotation est assuré par trois vérins (50, 51, 52) disposés sensiblement parallèles entre eux dans un même plan horizontal et tête bêche.Hydraulic drill according to claim 13, characterized in that the sliding of the rotation motor support is provided by three jacks (50, 51, 52) arranged substantially parallel to each other in the same horizontal plane and head to tail. Foreuse hydraulique selon la revendication 15, caractérisée en ce que les vérins (50, 51, 52) sont liés entre eux de façon rigide par trois pièces métalliques (53, 55) de section circulaire et en forme de U ainsi que par au mois quatre traverses (54, 54') sur lesquelles repose la plaque métallique (4).Hydraulic drill according to Claim 15, characterized in that the cylinders (50, 51, 52) are rigidly connected to each other by three metal pieces (53, 55) of circular and U-shaped section and by at least four months. sleepers (54, 54 ') on which the metal plate (4) rests. Foreuse hydraulique selon la revendication 1, caractérisée en ce que une fois en position de travail, le châssis (1) de la foreuses est stabilisé par le biais de deux vérins (7) disposés le long des traverses (12) et fixés à celles-ci au moyen d'une plaque métallique (70) et d'anneaux (71).Hydraulic drill according to claim 1, characterized in that once in the working position, the frame (1) of the drills is stabilized by means of two jacks (7) arranged along the webs (12) and fixed ferent ci by means of a metal plate (70) and rings (71). Foreuse hydraulique selon la revendication 17, caractérisée en ce que l'extrémité libre des vérins (7) est constituée d'une sphère (721) sertie dans une pièce cylindrique (73) munie d'un conduit (732) permettant le graissage de la sphère (721).Hydraulic drill according to Claim 17, characterized in that the free end of the cylinders (7) consists of a sphere (721) crimped into a cylindrical part (73) provided with a duct (732) allowing the lubrication of the sphere (721). Foreuse hydraulique selon la revendication 1, caractérisée en ce que son système hydraulique est doté de trois points d'entrée (P, T, D) de l'huile en provenance du système hydraulique de la mini pelle, le troisième point d'entrée (D) permettant d'augmenter la puissance de fonctionnement des composants de la foreuse.Hydraulic drill according to claim 1, characterized in that its hydraulic system is provided with three points of entry (P, T, D) of the oil from the hydraulic system of the mini excavator, the third point of entry ( D) to increase the operating power of the components of the drill. Foreuse hydraulique selon la revendication 19, caractérisée en ce que son système hydraulique est muni d'une vanne quart de tour (V) permettant d'alimenter soit le moteur de rotation soit les autres éléments participant au fonctionnement de la foreuse.Hydraulic drill according to claim 19, characterized in that its hydraulic system is provided with a quarter turn valve (V) for supplying either the rotation motor or the other elements involved in the operation of the drill. Foreuse hydraulique selon la revendication 1, caractérisée en ce que son système électrique est branché sur le panneau de commande de la mini pelle ce système comprend un interrupteur d'arrêt d'urgence (U), une alimentation pour un phare de travail (Ph) branchée sur l'allume cigare du châssis (1).Hydraulic drill according to Claim 1, characterized in that its electrical system is connected to the control panel of the mini excavator. This system comprises an emergency stop switch (U), a power supply for a working light (Ph) connected to the cigar lighter of the chassis (1). Foreuse hydraulique selon la revendication 22, caractérisée en ce qu'une alimentation destinée à l'électronique embarquée est montée en dérivation sur l'alimentation du phare de travail (Ph).Hydraulic drill according to Claim 22, characterized in that a power supply for the on-board electronics is connected in shunt to the power supply of the working light (Ph).
EP05291514A 2004-07-15 2005-07-13 Hydraulic drilling apparatus for confined space work Not-in-force EP1632638B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0407856A FR2873155A1 (en) 2004-07-15 2004-07-15 HYDRAULIC DRILL FOR WORK IN REDUCED SPACE

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EP1632638A1 true EP1632638A1 (en) 2006-03-08
EP1632638B1 EP1632638B1 (en) 2007-09-19

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EP05291514A Not-in-force EP1632638B1 (en) 2004-07-15 2005-07-13 Hydraulic drilling apparatus for confined space work

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US (3) US7478685B2 (en)
EP (1) EP1632638B1 (en)
AT (1) ATE373766T1 (en)
DE (1) DE602005002511T2 (en)
ES (1) ES2294656T3 (en)
FR (1) FR2873155A1 (en)

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US8728141B2 (en) * 2007-12-11 2014-05-20 Cornell University Method and apparatus for sealing an opening in the side wall of a body lumen, and/or for reinforcing a weakness in the side wall of a body lumen, while maintaining substantially normal flow through the body lumen
AU367084S (en) * 2015-12-25 2016-02-11 Guangzhou Ehang Intelligent Tech Co Folding mechanism of machine arm
US9725957B2 (en) * 2015-12-28 2017-08-08 Roddie, Inc. Hand-portable directional drill and method of use
USD866613S1 (en) * 2016-04-11 2019-11-12 Roddie, Inc. Hand portable directional drill
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Also Published As

Publication number Publication date
US20110030982A1 (en) 2011-02-10
US7896096B2 (en) 2011-03-01
DE602005002511T2 (en) 2008-06-19
DE602005002511D1 (en) 2007-10-31
US7478685B2 (en) 2009-01-20
EP1632638B1 (en) 2007-09-19
US20090032277A1 (en) 2009-02-05
US20060016625A1 (en) 2006-01-26
ES2294656T3 (en) 2008-04-01
ATE373766T1 (en) 2007-10-15
FR2873155A1 (en) 2006-01-20

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