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Publication numberCN104020057 A
Publication typeApplication
Application numberCN 201410262270
Publication date3 Sep 2014
Filing date12 Jun 2014
Priority date12 Jun 2014
Also published asCN104020057B
Publication number201410262270.X, CN 104020057 A, CN 104020057A, CN 201410262270, CN-A-104020057, CN104020057 A, CN104020057A, CN201410262270, CN201410262270.X
Inventors王大刚, 王世博, 李雪峰, 王学志, 葛世荣, 张德坤, 郭永波
Applicant中国矿业大学
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Multifunctional rotation cutting coal rock testing device and method
CN 104020057 A
Abstract
The invention discloses a multifunctional rotation cutting coal rock testing device and method. The testing device comprises a fixed base platform, a translation system, a transmission system and a state monitoring system, wherein the fixed base platform comprises a base, a plate A welded on the base, and a plate B which is perpendicular to the base; the translation system comprises an axial translation system and a transverse translation system; the transmission system comprises a direct driving motor, a torque sensor, a rigid coupling, a transmission shaft, a barrel, a gear base and picks; the state monitoring system comprises a feeding amount measuring system, a force measuring system, a pick friction fatigue damage measuring system, a coal rock fall measuring system, a coal rock crack generation and expansion measuring system, a cutting area thermal field measuring system and a dust concentration monitoring system. By the testing device, the triaxial stress characteristics, the three-dimensional friction outline and the crack generation and expansion characteristics of the picks, the dynamic coal rock fall characteristics, the coal rock thermal field characteristics in a cutting area and the coal rock crack generation and expansion characteristics can be monitored in real time.
Claims(6)  translated from Chinese
1.一种多功能旋转截割煤岩试验装置,其特征在于:包括固定基台、平移系统、传动系统、状态监测系统; 所述固定基台包括A基座、焊接在A基座上的A平板、与A基座垂直放置的B平板; 所述平移系统包括轴向平移系统和横向平移系统;所述轴向平移系统包括对称固定在A平板上的A直线导轨、设置在A直线导轨上并可沿轴向往复运动的移动平台;所述横向平移系统包括对称固定在B平板上的B直线导轨、设置在B直线导轨上并可往复运动的B基座;所述B基座上设有A侧板、B侧板、C侧板和煤样,煤样通过螺钉和A侧板、B侧板和C侧板固定在B基座中。 A multifunction rotary cutting coal and rock test apparatus comprising: a fixed base station, translating system, transmission system, monitoring system; the fixed base station comprises A base welded to the base A A flat, vertically placed with A B flat base; the translation system comprises an axial translation system and lateral translation system; the axial translation system comprises symmetrical plate fixed on the A A linear guides, linear guides provided in A and axially reciprocates on mobile platforms; the lateral translation system comprises a symmetric fixed on the B flat B linear guides, linear guide is provided on the B and B reciprocates base; on the B base A side has, B side, C side and coal, coal side by screws and A, B and C side plates fixed to the B base. 所述传动系统包括直驱电机、扭矩传感器、刚性联轴器、传动轴、滚筒、齿座和截齿,所述直驱电机固定在A移动平台上,所述扭矩传感器设置在A平板上的扭矩传感器支座上,扭矩传感器的一端通过键与直驱电机连接,另一端通过键与刚性联轴器连接,所述传动轴的一端与刚性联轴器连接,另一端通过螺钉与滚筒连接,滚筒上设有传感器基座,传感器基座上设有无线三轴力传感器,无线三轴力传感器上固定有齿座,齿座中通过卡簧固定有截齿; 所述状态监测系统包括进给量测量系统、力测量系统、截齿摩擦疲劳损伤测量系统、煤岩崩落测量系统、煤岩裂纹萌生与扩展测量系统、截割区热场测量系统和粉尘浓度监测系统; 所述进给量测量系统包括可轴向调整位移的A伺服油缸和横向调整位移的B伺服油缸,A伺服油缸设置在所述A平板一端,B伺服油缸设置在所述B平板一端,两个伺服油缸均内置有位移传感器; 所述力测量系统包括三轴力测量装置、压力测量装置和扭矩测量装置;所述三轴力测量装置包括用于测量单齿旋转截割煤岩过程中截齿在三个方向上受力状况的无线三轴力传感器,无线三轴力传感器数据通过无线传输至计算机;所述压力测量装置包括用于测量煤岩单齿旋转截割过程中传动轴受到的径向力的S型压力传感器、支架、轴承架和轴承,所述S型压力传感器均匀布置在支架四周,支架固定在A移动平台上,S型压力传感器内侧与轴承架连接,轴承架中通过销轴固定有轴承,可随所述传动轴转动的轴承为四个对称布置,轴承外圈对压传动轴,轴承端面与传动轴轴向垂直;所述扭矩测量装置包括用于测量截割煤岩时截齿受到的扭矩; 所述截齿摩擦疲劳损伤测量系统包括放置在所述A基座两侧的卧式工业CT系统,能够对一定截割周次后磨损截齿进行三维重建,进而获得截齿端部的磨损轮廓和磨损量以及截齿内部裂纹萌生和扩展情况; 所述煤岩崩落测量系统包括A支架、固定在A支架上的高速摄像机; 所述煤岩裂纹萌生与扩展测量系统包括均匀布置在煤样侧面上端的5个声发射传感器,所述声发射传感器与煤样界面之间设有耦合剂; 所述截割区热场测量系统包括B支架、固定在B支架上的热像仪; 所述粉尘浓度监测系统包括设置在所述移动平台上的粉尘浓度测试仪。 The drive system includes a direct drive motors, torque sensors, rigid coupling, drive shaft, roller, tooth seat and picks, the direct drive motor fixed on A mobile platform, the torque sensor is disposed on the plate A the torque sensor holder, one end of the torque sensor is connected by a key and direct-drive motor, and the other end connected via a bond with the rigid coupling, one end of the drive shaft with rigid couplings and the other end connected to the drum by means of screws, provided on the drum sensor base with Wi-axis force sensor, fixed wireless triaxial force sensor teeth, with tooth picks seat is fixed by the retainer on the sensor base; the state monitoring system includes feed measurement systems, force measurement system, picks friction fatigue damage the measuring system, the measuring system of coal caving coal rock crack initiation and propagation measurement systems, cutting zone thermal field measurement system and dust concentration monitoring systems; the feed rate measurement system includes axial adjustment displacements A servo cylinder and lateral adjustment servo cylinder displacement of B, A servo cylinder provided at one end of the A flat, B servo cylinder provided at one end of the B flat, two servo cylinders are built displacement sensors; the force measuring system includes a three-axis force measuring device, a pressure measuring device and a torque measuring device; the triaxial force measuring device comprises means for measuring the rotation of a single tooth during cutting of coal and rock picks in three directions by Wireless triaxial force sensor power condition, wireless triaxial force sensor data transmitted wirelessly to a computer; the pressure measuring means comprises means for measuring the rotation of coal and rock single tooth cutting process by the radial force of the drive shaft S Pressure sensors, bracket, bearing bracket and bearing, the pressure sensor S is disposed uniformly around the stent, the stent is fixed to the moving platform A, S-type pressure sensor connected to the inside of the bearing frame, the bearing holder is fixed by a pin bearing, may With the rotation of the shaft bearing four symmetrically arranged bearing outer ring of the pressure shaft, bearings and shaft perpendicular to the axial end face; the torque measuring device includes a cutting bit by the cutting of coal and rock when measuring torque ; the picks friction fatigue damage measurement system comprises a horizontal industrial CT systems placed in the A side of the base, it is possible for a certain cutting Weeks wear three-dimensional reconstruction picks, picks and then get to wear the ends profile and the amount of wear and picks internal crack initiation and propagation conditions; the coal and rock caving measurement system includes A bracket fixed to the bracket A high-speed camera; the coal and rock crack initiation and propagation measurement system comprises evenly arranged in coal 5 acoustic emission sensor upper side, the acoustic emission with a coupling agent between the sensor and the coal sample interface; the cutting zone thermal field measurement system comprises B bracket, fixed on the bracket B thermal imager; the dust concentration monitoring system includes a mobile platform provided on the dust concentration tester.
2.根据权利要求1所述的一种多功能旋转截割煤岩试验装置,其特征在于:所述工业CT系统的尺寸精度为0.02mm,空间分辨率为5.01 p/mm。 2. The system of claim 1, wherein the multi-function rotary cut cutting coal and rock testing device, wherein: the dimensional accuracy of the industrial CT system is 0.02mm, a spatial resolution of 5.01 p / mm.
3.根据权利要求1所述的一种多功能旋转截割煤岩试验装置,其特征在于:所选高速摄像机为分辨率最闻为1600万像素、支持全幅4000帧/秒的超闻速摄影、小画幅时最闻达20万帧/秒的高速摄像机。 3. A multifunction rotary cut to claim 1, wherein the cutting of coal and rock testing device, wherein: the selected speed camera for the resolution of the smell of 16 million pixels, full-size 4000 / second high-speed photography Wen When small format most Wenda 200,000 / s high-speed cameras.
4.根据权利要求1所述的一种多功能旋转截割煤岩试验装置,其特征在于:所述热像仪为一个52 X38的广角镜头在放置距离为1.5米时可监测I平米范围区域的温度场变化的热像仪,热像仪的热灵敏度为0.05C。 A multifunction rotary cut according to claim 1, wherein the cutting of coal and rock testing device, wherein: the thermal imager is a 52 X38 wide-angle lens in place to monitor a distance of 1.5 meters square I Regional variations of temperature field thermal imager, thermal imager thermal sensitivity of 0.05 C.
5.根据权利要求1所述的一种多功能旋转截割煤岩试验装置,其特征在于:所述粉尘浓度测试仪为检测灵敏度为0.01mg/m3,并可连续动态测量的粉尘浓度测试仪。 A multifunction rotary cut according to claim 1, wherein the cutting of coal and rock testing device, wherein: the dust concentration tester for the detection sensitivity of 0.01mg / m3, and continuous dynamic measurement of dust concentration tester .
6.一种利用权利要求1、2、3、4或5的试验装置进行多功能旋转截割煤岩的试验方法,其特征在于:该方法包括以下步骤: a)将截齿安装在齿座中并用卡簧固定,将煤样放在B基座中,用B基座侧面的螺钉固定住煤样,同时通过螺钉将A侧板、B侧板、C侧板分别与B基座连接并固定住煤样; b)启动并调节高速摄像机和热像仪的位置,使截齿和煤样截割区处于测量范围内,启动无线三轴力传感器、S型压力传感器、扭矩传感器、声发射传感器; c)启动直驱电机,通过传动系统使截齿随滚筒转动;通过液压伺服系统控制B伺服油缸活塞杆推出,将煤样移至设定的进给深度; d)通过液压伺服系统控制A伺服油缸的活塞杆推出,截齿随滚筒沿轴向进给运动,截割煤样,完成一次截割行程后,控制A伺服油缸的活塞杆收缩至初始位置,控制B伺服油缸的活塞杆推出,增加至下一个进给深度,准备下一个截割行程; e)重复步骤c、d,每经过i个截割行程,停止直驱电机,控制A伺服油缸的活塞杆收缩直至截齿到达工业CT系统可以扫描到的位置,通过工业CT系统扫描对磨损后截齿进行三维重建,获得截齿的磨损轮廓和磨损量以及截齿的裂纹萌生和扩展特性; f)当截割次数达到设定值时,停止高速摄像机、热像仪、轴力传感器、S型压力传感器、扭矩传感器、声发射传感器,保存相关数据进行后处理,停止实验。 An advantage of the test device of claim 3, 4 or 5 in the test methods multifunction rotary cutting coal and rock, wherein: the method comprising the steps of: a) cutting bit mounted tooth Block and fixed with a retainer, the coal sample on the base B, with B coal fixed screws on the side of the base, while the A side by screws, B side, C and B are connected to the base side and fixed coal; b) initiate and regulate high-speed cameras and thermal imagers, and make the picks and coal cutting area is within the measuring range, start wireless triaxial force sensor, S-type pressure sensors, torque sensors, acoustic emission sensors; c) starting direct-drive motor, via the drivetrain to make picks with the rotation of the drum; through hydraulic servo control system B servo cylinder rod launched moves to set the coal feed depth; d) through hydraulic servo control system A servo cylinder piston rod launched picks with the roller in the axial feed movement, cutting coal, after completion of a cutting stroke, control A servo cylinder retracts the piston rod to the initial position, the control servo cylinder piston rod B Release increased to the next infeed depth, ready for the next cutting stroke; e) repeating steps c, d, each one cutting stroke after i stopped direct-drive motor, control A servo cylinder piston rod contracts to reach picks industrial CT system can scan to the position, through industrial CT system scan picks for wear after the three-dimensional reconstruction, get the pick of the wear profile and the amount of wear and the pick of the crack initiation and propagation characteristics; f) when the number reaches the cutting set When setting, stop the high-speed camera, thermal imager, axis force sensor, S-type pressure sensors, torque sensors, acoustic emission sensors save data for post-processing, to stop the experiment.
Description  translated from Chinese

一种多功能旋转截割煤岩试验装置及方法 A multifunctional rotary cutting coal and rock testing apparatus and method

技术领域 Technical Field

[0001] 本发明涉及一种多功能旋转截割煤岩试验装置及方法,用于研究模拟截割机具的单个截齿旋转截割煤岩过程中截齿的三轴受力状况、三维磨损轮廓重建、磨损量以及裂纹萌生和扩展特性,探究单齿旋转截割煤岩过程中传动轴的压力与扭矩特性、煤岩的动态崩落过程与裂纹萌生和扩展以及煤岩截割磨损区的温度场演变。 [0001] The present invention relates to a multifunction rotary cutting coal and rock testing apparatus and method for a single rotation of the cross-sectional study of pick cutting machines simulate the process of coal and rock cutting picks triaxial stress condition, three-dimensional contour wear reconstruction, the amount of wear and crack initiation and propagation characteristics, to explore a single tooth rotary cutting pressure and torque characteristics of the process of coal shaft, dynamic avalanche process of coal and rock with crack initiation and growth as well as coal and rock cutting wear zone temperature field Evolution.

背景技术 Background

[0002] 煤炭是我国的主导能源,约63%能源直接或者间接来源于煤炭。 [0002] Coal is the dominant energy, about 63% of the energy comes from coal, directly or indirectly. 我国煤炭开采主要采用机械破碎,即截齿(刀型截齿及镐型截齿)截割;截齿作为岩石破碎的刀具,在截割过程中,安装于截割头上的截齿承受较高的压应力、剪应力和冲击负载,每年都会造成大量的截齿失效,进而影响采煤效率和导致巨大经济损失。 China's coal mining major mechanical crushing, which picks (picks knife and a pick picks) cutting; picks as a rock breaking tool, the cutting process, the cutting head mounted to withstand relatively picks high compressive stress, shear stress and impact loads, will result in a large number of picks each year fail, thereby affecting the mining efficiency and lead to huge economic losses. 因而,模拟截割机具的实际工况,通过试验方法对单个截齿在旋转截割煤岩过程中的失效评估和煤岩破碎机理分析显得至关重要。 Thus, the simulation of the actual cutting equipment conditions, the failure by the test method to assess the mechanism of coal and rock crushing picks in a single rotation of the cutting of coal and rock in the process of analysis is crucial. 为此,提供一种多功能旋转截割煤岩试验装置及方法,探讨不同截割参数下截齿的失效模式与定量分析、煤岩的崩落破碎机理和热场特性,为设计新型截割机具组排方式、提高截齿耐磨特性和使用寿命、提高截割效率具有重要意义。 To this end, a multi-function rotary cutting coal and rock testing apparatus and methods to explore picks different cutting parameters and quantitative analysis of failure modes, caving crushing mechanism of coal and thermal field characteristics, the design of new cutting equipment group row, improve wear characteristics and cutting teeth life and improve cutting efficiency is important.

[0003]目前用于煤岩截割试验方法及装置有:专利号为201210421825.1公开的一种截齿对岩石截割机理试验平台,能获得不同截齿安装参数和运动参数下截割力,可记录截割粉尘浓度、截齿温度场和截割过程视频,然而不能够对截割过程中磨损截齿进行三维重建和截齿磨损定量分析,亦不能探究煤岩裂纹萌生和扩张特性。 [0003] The currently used for coal and rock cutting test method and apparatus are: Patent No. 201210421825.1 discloses a cutting bit of rock cutting mechanism test platform, can be obtained under different picks installation parameters and motion parameters for cutting force, can record cutting dust concentration, temperature field and picks the cutting process video, however, can not wear to the cutting process three-dimensional reconstruction picks wear quantitative analysis and picks, they can not explore coal and rock of crack initiation and expansion characteristics. 专利号为201310341432.4公开一种煤岩截割试验装置及截割刀具试验方法,能够研究不同截割参数下截割力值变化和刀具磨损评价;专利号为201220584454.4公开的一种多截齿参数可调式旋转截割煤岩实验装置,能够实现不同截割参数下多截齿旋转截割,获得截割过程中的截割阻力矩和截齿三向力;然而,上述两个装置功能均较单一,不能综合评价煤岩旋转截割过程中的多参量演化,不利于获得优化的截割机具组排方式和高效截割机具设计;专利号为201020578699.7公开的一种镐型截齿试验装置,能够实现截齿在截割煤岩壁时的受力和温度测试,并进行磨损评价,然而不能实时开展煤岩截割过程中截齿的磨损定量评价以及煤岩崩落特性、裂纹萌生与扩展特性的测试。 Patent No. 201310341432.4 discloses a coal and rock cutting tool test equipment and test methods for cutting, cutting force values can study at different cutting parameters and tool wear evaluation; Patent No. 201220584454.4 disclosed a multi-parameter picks adjusting rotary cutting coal and rock experimental device, different cutting parameters to achieve a multi-picks rotating cutting, the cutting process to obtain cutting resistance moment and picks three forces; however, compared with the single function of the two devices not a comprehensive evaluation of coal and rock cutting rotating multi-parameter evolution is not conducive for optimized cutting equipment group Sort and efficient cutting equipment design; Patent No. 201020578699.7 discloses a pick-type picks experimental device capable achieve picks when cutting coal rock by the force and temperature tests, and wear evaluation, but not to carry out in real time during the cutting of coal and rock cutting bit of wear and quantitative evaluation of coal caving characteristics of crack initiation and propagation characteristics test.

发明内容 DISCLOSURE

[0004] 本发明的目的是为了克服现有技术的不足,提供一种多功能旋转截割煤岩试验装置及方法,是一种功能齐全、操作简单的煤岩单齿旋转截割试验装置及方法,能实时监测截齿的三轴受力特性、截齿的三维磨损轮廓与裂纹萌生和扩展特性、煤岩动态崩落特性、截割区煤岩热场特性、煤岩裂纹萌生和扩展特性。 [0004] The object of the present invention is to overcome the deficiencies of the prior art and to provide a versatile rotary cutting coal and rock testing apparatus and method, is a full-featured, easy to operate coal-rock single tooth rotary cutting test equipment and method, real-time monitoring of the triaxial picks mechanical characteristics, the three-dimensional contour cut tooth wear and crack initiation and propagation characteristics of coal caving characteristics of dynamic, thermal coal and rock cutting zone field characteristics, coal and rock crack initiation and propagation characteristics.

[0005] 本发明采用的技术方案为:一种多功能旋转截割煤岩试验装置,包括固定基台、平移系统、传动系统、状态监测系统; [0005] The aspect of the present invention is used are: a versatile rotary cutting coal and rock testing apparatus comprises a fixed base station, translating system, transmission system, monitoring system;

[0006] 所述固定基台包括A基座、焊接在A基座上的A平板、与A基座垂直放置的B平板; Fixing the [0006] A base station comprises a base, welded A base plate on A, and A base vertically positioned B flat;

[0007] 所述平移系统包括轴向平移系统和横向平移系统;所述轴向平移系统包括对称固定在A平板上的A直线导轨、设置在A直线导轨上并可沿轴向往复运动的移动平台;所述横向平移系统包括对称固定在B平板上的B直线导轨、设置在B直线导轨上并可往复运动的B基座;所述B基座上设有A侧板、B侧板、C侧板和煤样,煤样通过螺钉和A侧板、B侧板和C侧板固定在B基座中。 [0007] The translation system includes an axial translation system and lateral translation system; the axial translation system comprises symmetrical plate fixed on the A A linear guides, linear guide is provided on the A and movable axially reciprocating platform; the lateral translation system comprises a symmetric fixed on the B flat B linear guides, linear guide is provided on the B and B reciprocates base; features A side, B side on the base B, C side and coal, coal samples side by screws and A, B and C side plates fixed to the B base.

[0008] 所述传动系统包括直驱电机、扭矩传感器、刚性联轴器、传动轴、滚筒、齿座和截齿,所述直驱电机固定在A移动平台上,所述扭矩传感器设置在A平板上的扭矩传感器支座上,扭矩传感器的一端通过键与直驱电机连接,另一端通过键与刚性联轴器连接,所述传动轴的一端与刚性联轴器连接,另一端通过螺钉与滚筒连接,滚筒上设有传感器基座,传感器基座上设有无线三轴力传感器,无线三轴力传感器上固定有齿座,齿座中通过卡簧固定有截齿; [0008] The drive system includes a direct drive motors, torque sensors, rigid coupling, drive shaft, roller, tooth seat and picks, the direct drive motor fixed on A mobile platform, the torque sensor is provided in A the torque sensor holder on the plate, one end of the torque sensor is connected by a key and direct-drive motor, and the other end connected via a bond with the rigid coupling, one end of the drive shaft with rigid couplings connect the other end by screws roller connection with the sensor base on rollers, with Wi-axis force sensor, fixed gear seat on wireless triaxial force sensor on the sensor base, tooth seat retainer is fixed by the pick;

[0009] 所述状态监测系统包括进给量测量系统、力测量系统、截齿摩擦疲劳损伤测量系统、煤岩崩落测量系统、煤岩裂纹萌生与扩展测量系统、截割区热场测量系统和粉尘浓度监测系统; [0009] The monitoring system includes a feed amount measurement systems, force measurement system, picks friction fatigue damage the measuring system, the measuring system of coal caving coal rock crack initiation and propagation measurement systems, cutting area and thermal field measurement system dust concentration monitoring systems;

[0010] 所述进给量测量系统包括可轴向调整位移的A伺服油缸和横向调整位移的B伺服油缸,A伺服油缸设置在所述A平板一端,B伺服油缸设置在所述B平板一端,两个伺服油缸均内置有位移传感器; [0010] to give the amount of the measurement system includes axial adjustment displacements A servo cylinder and lateral adjustment servo cylinder displacement of B, A servo cylinder provided at one end of the A flat, B servo cylinder provided at one end of the B flat Two servo cylinder displacement sensors are built;

[0011] 所述力测量系统包括三轴力测量装置、压力测量装置和扭矩测量装置;所述三轴力测量装置包括用于测量单齿旋转截割煤岩过程中截齿在三个方向上受力状况的无线三轴力传感器,无线三轴力传感器数据通过无线传输至计算机;所述压力测量装置包括用于测量煤岩单齿旋转截割过程中传动轴受到的径向力的S型压力传感器、支架、轴承架和轴承,所述S型压力传感器均匀布置在支架四周,支架固定在A移动平台上,S型压力传感器内侧与轴承架连接,轴承架中通过销轴固定有轴承,可随所述传动轴转动的轴承为四个对称布置,轴承外圈对压传动轴,轴承端面与传动轴轴向垂直;所述扭矩测量装置包括用于测量截割煤岩时截齿受到的扭矩扭矩传感器; During coal cutting bit in three directions on the triaxial force measuring means comprises means for measuring the rotation of a single cutting tooth; [0011] The force measuring system includes a three-axis force measuring device, a pressure measuring device and torque measuring apparatus Wireless triaxial stress state force sensors, wireless triaxial force sensor data transmitted wirelessly to a computer; the pressure measuring means comprises means for measuring the rotation of coal and rock single tooth cutting process by the radial force of the drive shaft S type pressure sensors, bracket, bearing bracket and bearing, the pressure sensor S is disposed uniformly around the stent, the stent is fixed to the moving platform A, S-type pressure sensor connected to the inside of the bearing frame, the bearing holder is fixed by a bearing pin, may vary depending on the shaft rotation bearing four symmetrically arranged bearing outer ring of the pressure shaft, bearings and shaft perpendicular to the axial end face; the torque measuring device comprises means for measuring cutting of coal and rock picks suffered torque torque sensor;

[0012] 所述截齿摩擦疲劳损伤测量系统包括放置在所述A基座两侧的卧式工业CT系统,能够对一定截割周次后磨损截齿进行三维重建,进而获得截齿端部的磨损轮廓和磨损量以及截齿内部裂纹萌生和扩展情况; [0012] The fatigue damage picks friction measurement system includes a horizontal industrial CT systems placed in the A side of the base, it is possible for a certain cutting Weeks wear picks three-dimensional reconstruction, and then get the pick ends wear profile and the amount of wear and picks internal crack initiation and propagation conditions;

[0013] 所述煤岩崩落测量系统包括A支架、固定在A支架上的高速摄像机; [0013] The measuring system consists of coal and rock caving A bracket, fixed speed cameras in the A bracket;

[0014] 所述煤岩裂纹萌生与扩展测量系统包括均匀布置在煤样侧面上端的5个声发射传感器,所述声发射传感器与煤样界面之间设有耦合剂; [0014] The coal and rock crack initiation and propagation measurement system comprises uniformly arranged on the side of the upper end of coal five acoustic emission sensors, the acoustic emission with a coupling agent between the sensor and the coal sample interface;

[0015] 所述截割区热场测量系统包括B支架、固定在B支架上的热像仪; Cut the [0015] cutting zone thermal field measurement system comprises B bracket, fixed on the bracket B thermal imager;

[0016] 所述粉尘浓度监测系统包括设置在所述移动平台上的粉尘浓度测试仪。 [0016] The dust concentration monitoring system includes a mobile platform provided on the dust concentration tester.

[0017] 作为优选,所述工业CT系统的尺寸精度为0.02mm,空间分辨率为5.01 p/mm。 [0017] Advantageously, the dimensional accuracy of industrial CT system is 0.02mm, the spatial resolution of 5.01 p / mm.

[0018] 作为优选,所选高速摄像机为分辨率最高为1600万像素、支持全幅4000帧/秒的超闻速摄影、小画幅时最闻达20万巾贞/秒的闻速摄像机。 [0018] Preferably, the selected speed camera for the highest resolution of 16 million pixels, full-size 4000 / second high-speed photography smell, the smell when small format of 200,000 towel Zhen / sec smell speed cameras.

[0019] 作为优选,所述热像仪为一个52 X38的广角镜头在放置距离为1.5米时可监测I平米范围区域的温度场变化的热像仪,热像仪的热灵敏度为0.05C。 [0019] Advantageously, the thermal imager is a 52 X38 wide-angle lens in place to monitor the distance of the range I square meter area 1.5 meters when the temperature field varying thermal imager, thermal imager thermal sensitivity of 0.05 C. [0020] 作为优选,所述粉尘浓度测试仪为检测灵敏度为0.01mg/m3,并可连续动态测量的粉尘浓度测试仪。 [0020] Advantageously, the dust concentration tester for the detection sensitivity of 0.01mg / m3, and continuous dynamic measurement of dust concentration tester.

[0021] 一种利用上述试验装置进行多功能旋转截割煤岩的试验方法,该方法包括以下步骤: [0021] An advantage of the above test apparatus to test a multifunctional rotary cutting coal and rock, the method comprising the steps of:

[0022] a)将截齿安装在齿座中并用卡簧固定,将煤样放在B基座中,用B基座侧面的螺钉固定住煤样,同时通过螺钉将A侧板、B侧板、C侧板分别与B基座连接并固定住煤样; [0022] a) the cutting bit mounted in the tooth holder with a fixed retainer, the coal sample on the base B, with B coal fixed screws on the side of the base, while the A side by screws, B-side plate, C and B are connected to the base side and fixed coal;

[0023] b)启动并调节高速摄像机和热像仪的位置,使截齿和煤样截割区处于测量范围内,启动无线三轴力传感器、S型压力传感器、扭矩传感器、声发射传感器; [0023] b) initiate and regulate high-speed cameras and thermal imagers, and make the picks and coal cutting area is within the measuring range, start wireless triaxial force sensor, S-type pressure sensors, torque sensors, acoustic emission sensors;

[0024] c)启动直驱电机,通过传动系统使截齿随滚筒转动;通过液压伺服系统控制B伺服油缸活塞杆推出,将煤样移至设定的进给深度; [0024] c) starting direct-drive motor, via the drivetrain to make picks with the rotation of the drum; through hydraulic servo control system B servo cylinder rod launch will move to set the coal feed depth;

[0025] d)通过液压伺服系统控制A伺服油缸的活塞杆推出,截齿随滚筒沿轴向进给运动,截割煤样,完成一次截割行程后,控制A伺服油缸的活塞杆收缩至初始位置,控制B伺服油缸的活塞杆推出,增加至下一个进给深度,准备下一个截割行程; [0025] d) A hydraulic servo system control servo cylinder piston rod launched picks with the roller in the axial feed movement, cutting coal, after the completion of a cutting stroke control A servo cylinder piston rod to shrink initial position, the control B servo cylinder piston rod introduced increased to the next infeed depth, ready for the next cutting stroke;

[0026] e)重复步骤c、d,每经过i个截割行程,停止直驱电机,控制A伺服油缸的活塞杆收缩直至截齿到达工业CT系统可以扫描到的位置,通过工业CT系统扫描对磨损后截齿进行三维重建,获得截齿的磨损轮廓和磨损量以及截齿的裂纹萌生和扩展特性; [0026] e) repeating steps c, d, each one cutting stroke after i stopped direct-drive motor, control A servo cylinder piston rod reaches the industry shrink until it picks CT system can scan to the position, through industrial CT scanning system worn picks for three-dimensional reconstruction, get picks wear profile and the amount of wear and crack initiation and propagation picks characteristics;

[0027] f)当截割次数达到设定值时,停止高速摄像机、热像仪、轴力传感器、S型压力传感器、扭矩传感器、声发射传感器,保存相关数据进行后处理,停止实验。 [0027] f) When cutting the number reaches the set value, stop the high-speed camera, thermal imager, axis force sensor, S-type pressure sensors, torque sensors, acoustic emission sensors save data for post-processing, to stop the experiment.

[0028] 有益效果:通过本发明装置能够实现不同截割深度的煤岩单齿旋转截割实验,并可以实时监测截割过程中不同截割运动参数和截齿安装形式下的截割阻力矩、三个方向上的截齿受力(正压力、截割力和侧向力)、传动轴所受径向力、基于CT三维重建技术的截齿磨损轮廓和磨损量及裂纹萌生和扩展特性、煤岩动态崩落情况、煤岩裂纹萌生和扩展情况、截割区热场、截割过程粉尘浓度等参量。 [0028] The beneficial effects: by the apparatus of the invention can be realized in different depths of coal and rock cutting single tooth rotary cutting experiments, and real-time monitoring of cutting picks installation forms under different cutting motion the process of cutting parameters and cut drag torque , cutter force (positive pressure, cutting force and lateral force) in three directions, the drive shaft radial force suffered, based on tooth wear profile and cut the amount of wear and crack initiation and propagation characteristics of three-dimensional reconstruction of CT , coal and rock dynamic avalanche conditions, crack initiation and growth of coal, the cutting area of the thermal field, the process parameters such as dust concentration cutting. 上述多种动态监测功能提供的监测数据能够为进一步优化截割机具组排方式、提高截齿耐磨性和使用寿命、提高截割效率以及研究煤岩截割机理提供有效依据。 Monitoring data of the more dynamic monitoring functions can be provided to further optimize the cutting equipment group row, improve the wear resistance and service life of cutting teeth, improve cutting efficiency and cutting mechanism of coal and provide an effective basis.

附图说明 Brief Description

[0029] 图1为本发明的结构示意图; The structure of the present invention [0029] FIG. 1 schematic;

[0030] 图2为图1的俯视图; [0030] FIG. 2 is a plan view of FIG. 1;

[0031] 图3为本发明的结构局部示意图。 [0031] FIG. 3 a partial schematic structure of the present invention.

[0032] 图中:1-高速摄像机,2-A支架,3-A侧板,4-B侧板,5-B基座,6_工业CT系统,7-A基座,8-A伺服油缸,9-直驱电机,10-扭矩传感器,11-刚性联轴器,12-轴承支座,13-传动轴,14-支架,15-声发射传感器,16-煤样,17-C侧板,18-热像仪,19-B平板,20-B直线导轨,21-B伺服油缸,22-截齿,23-齿座,24-无线三轴力传感器,25-移动平台,26-A直线导轨,27-A平板,28-传感器基座,29-粉尘浓度测试仪,30-滚筒,31-轴承架,32-销轴,33-轴承,34-S型压力传感器。 [0032] Reference Numerals 1: High-speed cameras, 2-A bracket, 3-A side, 4-B side, 5-B base, 6_ industrial CT system, 7-A base, 8-A Servo cylinder, direct drive motor 9-, 10- torque sensor, 11 rigid coupling, 12 bearing support, 13 shaft, 14 bracket, 15 acoustic emission sensors, 16 coal samples, 17-C side board, 18 thermal imager, 19-B flat, 20-B linear guide, 21-B servo cylinder, 22- picks, 23 teeth, with 24- wireless triaxial force sensor, 25 mobile platform, 26- A linear guide, 27-A flat, 28- sensor base 29-dust concentration tester, 30- drum, 31- bearing frame 32-pin, 33- bearing, 34-S-type pressure sensor.

具体实施方式 DETAILED DESCRIPTION

[0033] 下面结合附图和具体实施方式对本发明做进一步说明。 [0033] below in conjunction with the accompanying drawings and specific embodiments of the present invention is further described below. [0034] 如图1至3所示,本发明的一种多功能旋转截割煤岩试验装置,包括固定基台、平移系统、传动系统、状态监测系统: [0034] as shown in Figure 1-3, a multifunction rotary cut coal and rock cutting the invention test apparatus comprises a fixed base station, translating system, transmission system, condition monitoring systems:

[0035] 所述固定基台包括A基座7、焊接在A基座上的A平板27、与A基座7垂直放置的B平板19 ; Fixing the [0035] A base station comprises a base 7, A plate welded on the base 27 A, and A base plate 7 vertically positioned B 19;

[0036] 所述平移系统包括轴向平移系统和横向平移系统。 [0036] The translation system includes an axial translation system and lateral translation system. 所述轴向平移系统包括对称固定在A平板27上的A直线导轨26、设置在A直线导轨26上的移动平台25、设置在A平板27—端的A伺服油缸8 ;所述移动平台可在A直线导轨26上沿轴向往复运动。 The axial translation system comprises a symmetric fixed on the A 27, A linear guide plate 26 is provided on the linear guide 26 in A mobile platform 25, provided in the A-side of the plate 27- A servo cylinder 8; the mobile platform in A linear guide 26 axially reciprocates. 所述横向平移系统包括对称设置于B平板19上的B直线导轨20和B伺服油缸21、设置在B直线导轨20上的B基座5、设置在B基座5上的A侧板3、B侧板4、C侧板17和煤样16 ;所述B基座5可在B直线导轨20上往复运动;所述煤样16通过螺钉和A侧板3、B侧板4和C侧板17固定在B基座5中。 The lateral translation system comprises symmetrically disposed on the plate 19 B B B linear guide 20 and the servo cylinder 21 is provided in the base 5 B B linear guide 20 on the base 5 is provided on the B side of A 3, The coal sample, B and C side plates and 16 screws A side 3 4; B side 4, C side plates 17 and 16 coal samples; the B rail 20 base 5 can reciprocate in a straight line B B base plate 17 is fixed at 5.

[0037] 所述传动系统包括固定在A平板27上的直驱电机9、与直驱电机9相连的扭矩传感器10 —端、扭矩传感器10设置在移动平台25上的扭矩传感器支座上、与扭矩传感器10另一端连接的刚性联轴器11、与刚性联轴器11相连的传动轴13 —端、传动轴13依次穿过轴承支座12内的轴承和压力测量装置、与传动轴13另一端通过螺钉相连的滚筒30、设置在滚筒30上的传感器基座28、设置在传感器基座28上的无线三轴力传感器24、固定在无线三轴力传感器24上的齿座23、通过卡簧固定在齿座23中的截齿22 ;所述直驱电机9和刚性联轴器11均分别通过键与扭矩传感器10相连; [0037] The drive train comprises a fixed plate 27 on A direct drive motor 9 is connected with the direct-drive motor torque sensor 9 10 - end torque sensor 10 is provided on the mobile platform torque sensor on the seat 25, and rigid coupling 10 and the other end connected to the torque sensor 11, and the drive shaft 11 is connected to the rigid coupling 13-- end, the drive shaft 13 successively through the bearings and the pressure measuring means within the bearing holder 12, drive shaft 13 and the other Wireless triaxial force sensor at one end by a screw 30 connected to the drum, the drum 30 is provided on the sensor base 28, disposed on the base 28 of the sensor 24, fixed to the wireless-axis force sensor 24 of the tooth holder 23 via the card spring seat 23 fixed tooth picks 22; the direct-drive motor 9 and 11 are connected by a rigid coupling keys and torque sensor 10, respectively;

[0038] 所述状态监测系统包括进给量测量系统、力测量系统、截齿摩擦疲劳损伤测量系统、煤岩崩落测量系统、煤岩裂纹萌生与扩展测量系统、截割区热场测量系统、粉尘浓度监测系统。 [0038] The monitoring system includes a feed amount measurement systems, force measurement system, picks friction fatigue damage the measuring system, the measuring system of coal caving coal rock crack initiation and propagation measurement systems, cutting zone thermal field measurement system, dust concentration monitoring systems.

[0039] 所述进给量测量系统包括可轴向、横向调整位移的A伺服油缸8和B伺服油缸21,两个伺服油缸均内置有位移传感器; [0039] into the measurement system to include axial, lateral displacement of the adjustment cylinder 8 A and B servo servo cylinder 21, two servo cylinder displacement sensors are built;

[0040] 所述力测量系统包括三轴力测量装置、压力测量装置和扭矩测量装置。 [0040] The force measuring system includes a three-axis force measuring device, a pressure measuring device and torque measuring device. 所述三轴力测量装置包括设置在传感器基座28上的无线三轴力传感器24,用于测量单齿旋转截割煤岩过程中截齿22在三个方向上的受力状况,数据无线传输至计算机,所述无线三轴力传感器量程为O〜20t ;所述压力测量装置包括固定在移动平台25上的支架14、均匀布置在支架14四周的S型压力传感器34、与S型压力传感器34内侧连接的轴承架31、通过销轴32固定在轴承架31中的轴承33,所选S型压力传感器34量程为O〜20t ;所述四个对称布置的轴承33外圈对压传动轴13,可随传动轴13转动,轴承33端面与传动轴13轴向垂直,该压力测量装置用于测量煤样单齿旋转截割过程中传动轴受到的径向力;所述扭矩测量装置包括扭矩传感器10,用于测量截割煤岩时截齿22受到的扭矩,所选扭矩传感器10量程为O 〜2000Nm ; Wireless triaxial force sensor measuring device includes the three-axis force sensor is disposed on the base 28 of 24 for measuring the rotation of a single tooth during the cutting of coal and rock cutting bit 22 situation by force in three directions, and data wireless transferred to the computer, the wireless triaxial force sensor range is O~20t; the pressure measuring device includes a mobile platform 25 fixed on the bracket 14, the bracket 14 arranged evenly around the S-type pressure sensor 34, and S-type pressure Sensor 34 is connected inside of the bearing frame 31 by a pin 32 fixed to the bearing 31 of the bearing holder 33, the selected range of S-type pressure sensor 34 is O~20t; the four symmetrically arranged on the outer ring 33 of the bearing pressure transmission shaft 13 can rotate with the drive shaft 13, the bearings 33 and 13 perpendicular to the axial end surface of the drive shaft, the pressure measuring device for measuring coal single tooth shaft rotary cutting process by the radial force; the torque measuring device includes a torque sensor 10 for measuring the cut by 22 picks torque when cutting coal and rock, the selected torque sensor 10 range is O ~2000Nm;

[0041] 所述截齿摩擦疲劳损伤测量系统包括放置在A基座7两侧的卧式工业CT系统6,可以通过CT扫描(利用射线从多个方向透射工件某断层,通过探测器探测由工件衰减后的射线信息,由计算机对采集的数据进行图像重建)对一定截割周次后磨损截齿22进行三维重建以获得截齿22端部的磨损轮廓和磨损量以及截齿22内部裂纹萌生和扩展情况;所选工业CT系统6尺寸精度为0.02mm,空间分辨率为5.01 p/mm。 [0041] The fatigue damage picks friction measurement system involves placing the base in seven sides A horizontal industrial CT system 6, by CT scan (using radiation from multiple directions in a transmission fault workpiece through the detector detects the Information workpiece ray attenuation by the computer for data acquisition for image reconstruction) of a certain cut-off after cutting wear Week 22 picks were reconstructed in order to obtain the amount of wear and wear contour cut ends of the teeth 22 and 22 picks internal cracks initiation and propagation conditions; selected industrial CT system 6 dimensional accuracy of 0.02mm, a spatial resolution of 5.01 p / mm.

[0042] 所述煤岩崩落测量系统包括A支架2、固定在A支架2上的高速摄像机1,所选高速摄像机I分辨率最闻为1600万像素,支持全幅4000巾贞/秒的超闻速摄影,小画幅时最闻达20万帧/秒; [0042] The measuring system consists of coal and rock caving A holder 2 is fixed to the holder 2. A high-speed camera 1, the selected resolution of most high-speed camera I hear of 16 million pixels, full-size 4000 towel Zhen / sec ultra-Wen speed photography, small format when most Wenda 200,000 / sec;

[0043] 所述煤岩裂纹萌生与扩展测量系统包括均匀布置在煤样16侧面上端的5个声发射传感器15,所述声发射传感器15与煤样16界面之间设有耦合剂; [0043] The coal and rock crack initiation and propagation measurement system comprises uniformly arranged on the upper side of the coal samples 16 5 acoustic emission sensor 15, the acoustic emission with a coupling agent between the sensor 15 and the coal sample 16 interface;

[0044] 所述截割区热场测量系统包括B支架18、固定在B支架18上的热像仪17,所述热像仪17使用一个52 X 38的广角镜头在放置距离为1.5米时可监测I平米范围区域的温度场变化,所选热像仪17的热灵敏度为0.050C ; [0044] The cutting area thermal field measurement system comprises B bracket 18 fixed on the bracket 18 B 17 thermal imager, the imager 17 using a 52 X 38 wide-angle lens in place a distance of 1.5 meters When I square meter can monitor changes in temperature field Range area, selected thermal sensitivity imager 17 is 0.050C;

[0045] 所述粉尘浓度监测系统包括设置在移动平台25上的粉尘浓度测试仪29,所选粉尘浓度测试仪29检测灵敏度为0.01mg/m3,可连续动态测量。 [0045] The dust concentration monitoring system set up in a mobile platform including dust concentration tester 25 29 29 selected testers dust concentration detection sensitivity is 0.01mg / m3, continuous dynamic measurement.

[0046] —种利用上述试验装置进行多功能旋转截割煤岩的试验方法,该方法包括以下步骤: [0046] - the kind of use of the above test apparatus to test a multifunctional rotary cutting coal and rock, the method comprising the steps of:

[0047] a)将截齿22安装在齿座23中并用卡簧固定,将煤样16放在B基座5中,用B基座5侧面的螺钉固定住煤样16,同时通过螺钉将A侧板3、B侧板4、C侧板17分别与B基座5连接并固定住煤样16 ; [0047] a) the cutting bit 22 is mounted on the teeth with the retainer seat 23 and fixed, the coal base 16 on the B 5, B fixed with screws on the side of the base 5 coal samples 16, through screws A side panel 3, B side 4, C and B are connected to the side plate 17 and fixed base 5 16 coal samples;

[0048] b)启动并调节高速摄像机I和热像仪17的位置,使截齿22和煤样16截割区处于测量范围内,启动无线三轴力传感器24、S型压力传感器34、扭矩传感器10、声发射传感器15 ; [0048] b) I started and adjust speed cameras and thermal imager position 17, so that the pick 22 and 16 coal cutting area is within the measuring range, start wireless triaxial force sensor 24, S-type pressure sensor 34, torque sensor 10, acoustic emission sensors 15;

[0049] c)启动直驱电机9,通过传动系统使截齿22随滚筒30转动;通过液压伺服系统控制B伺服油缸21活塞杆推出,将煤样16移至设定的进给深度; [0049] c) starting direct-drive motor 9 through 22 with the transmission so that the pick roller 30 is rotated; through hydraulic servo control system B servo cylinder piston rod 21 launch, the coal sample 16 moves to set infeed depth;

[0050] d)通过液压伺服系统控制A伺服油缸8的活塞杆推出,截齿22随滚筒30沿轴向进给运动,截割煤样16,完成一次截割行程后,控制A伺服油缸8的活塞杆收缩至初始位置,控制B伺服油缸21的活塞杆推出,增加至下一个进给深度,准备下一个截割行程; [0050] d) A hydraulic servo system control servo cylinder rod 8 launch, picks 22 with the drum 30 in the axial feed movement, cutting coal sample 16, after completion of a cutting stroke, control A servo cylinder 8 The piston rod contraction to the initial position, the control B servo cylinder rod 21 launch, increasing to the next infeed depth, ready for the next cutting stroke;

[0051] e)重复步骤C、d,每经过i个截割行程,停止直驱电机9,控制A伺服油缸8的活塞杆收缩直至截齿22到达工业CT系统6可以扫描到的位置,通过工业CT系统6扫描对磨损后截齿22进行三维重建,获得截齿22的磨损轮廓和磨损量以及截齿的裂纹萌生和扩展特性; [0051] e) repeating steps C, d, each one cutting stroke after i stopped direct drive motor 9, a control servo cylinder rod 8 A contraction until the pick 22 to 6 industrial CT system can scan to the position, by Industrial CT Scanning System 6 picks 22 three-dimensional reconstruction of worn, get 22 picks wear profile and the amount of wear and picks the crack initiation and propagation characteristics;

[0052] f)当截割次数达到设定值时,停止高速摄像机1、热像仪17、无线三轴力传感器24、S型压力传感器34、扭矩传感器10、声发射传感器15,保存相关数据进行后处理,停止实验。 [0052] f) When cutting the number reaches the set value, stop a high-speed camera, thermal imager 17, wireless triaxial force sensor 24, S-type pressure sensor 34, a torque sensor 10, acoustic emission sensors 15, save data After the treatment, stop the experiment.

[0053] 应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0053] It should be noted that those of ordinary skill in the art, in the present invention without departing from the principle of the premise, but also a number of improvements and modifications can be made, these improvements and modifications are to be considered the scope of the invention. 本实施例中未明确的各组成部分均可用现有技术加以实现。 It may not be a clear example of the components of the embodiment of existing technology.

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Referenced by
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CN105241747A *28 Sep 201513 Jan 2016中国矿业大学Adjustable coal rock cutting experiment sample supporting table and experiment method thereof
Classifications
International ClassificationG01N3/28, G01N33/22
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