CN102866108A - Frictional disk pair test apparatus capable of adjusting magnetic field and method - Google Patents
Frictional disk pair test apparatus capable of adjusting magnetic field and method Download PDFInfo
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- CN102866108A CN102866108A CN2012103201501A CN201210320150A CN102866108A CN 102866108 A CN102866108 A CN 102866108A CN 2012103201501 A CN2012103201501 A CN 2012103201501A CN 201210320150 A CN201210320150 A CN 201210320150A CN 102866108 A CN102866108 A CN 102866108A
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Abstract
The invention relates to a frictional disk pair test apparatus capable of adjusting a magnetic field and a method, and is suitable for evaluating tribological properties of magnetic liquid under the action of the magnetic field. The apparatus comprises an oil cup seat, annular samples and a pin sample, wherein annular grooves are formed on the bottom faces, of the annular samples, contacted with the oil cup seat, annular permanent magnets adhered onto the bottom faces of the annular samples are arranged in the annular grooves, and a low-carbon steel column is arranged inside the pin sample. The annular permanent magnets are adhered onto the bottom faces of the annular samples according to the experimental requirements so as to generate uniform magnetic fields between the surfaces of the annular samples and the contact faces of the annular permanent magnets, and uniform and adjustable magnetic fields can be generated between the annular samples and the contact point of the pin sample by changing the thicknesses of the annular permanent magnets and adjusting the length of the low-carbon steel column in the pin sample, so that the testing of the tribological properties of the magnetic liquid under different magnetic field strengths is realized, and furthermore, the frictional wear properties of the magnetic liquid are comprehensively and precisely evaluated. Meanwhile, the frictional disk pair test apparatus capable of adjusting the magnetic field and the method are also applicable to the evaluating of the tribological properties under other lubricating agent magnetic fields.
Description
Technical field
The present invention relates to a kind of secondary test unit of frictional disk and method of controlling magnetic field, be particularly useful for estimating magnetic fields magnetic fluid friction performance, also be applicable to estimate the tribological property of other lubricants under magnetic fields.
Background technology
At present, magnetic liquid has been applied to the fields such as bearing, damper, the sticking gearing of liquid, and in the Practical Project field, no matter magnetic liquid is to apply in the mechanical devices as core component, or as lubricated wear-resistant reagent, its wear resistance all is an important parameter index.
The size of magnetic field intensity has a great impact the greasy property of magnetic liquid, the whether even evaluation that also can directly have influence on the magnetic liquid tribological property in friction surface magnetic field, but also there is not special-purpose frictional wear test device to be used for measuring the wear resistance of magnetic fields magnetic liquid at present.Can be understood by existing bibliographical information, the magnetic liquid material friction wear properties testing experiment that carries out at present has following deficiency: 1, existing friction wear testing machine only can without under the magnetic field condition magnetic liquid tribological property being estimated, can not reflect the friction and wear behavior of magnetic liquid comprehensively; 2, some improved friction and wear test equipment are difficult to produce uniform magnetic field at friction surface, and the range of adjustment of magnitude of field intensity is large not.
Summary of the invention
Technical matters: purpose of the present invention provides a kind of secondary test unit of frictional disk simple in structure, that can reflect friction and wear behavior, controlling magnetic field and method for the problem that exists in the prior art,
Technical scheme:
The secondary test unit of the frictional disk of controlling magnetic field of the present invention, comprise oil cup seat, be located at the ring specimen on the oil cup seat, ring specimen is provided with the pin sample that places the pin chuck, the contacted bottom surface of described ring specimen and oil cup seat has the annular groove that the degree of depth is 5mm, be provided with in the annular groove and be attached to that thickness h is the annular permanent magnet of 1 ~ 5mm on the ring specimen bottom surface, described pin sample inside is provided with the low-carbon (LC) steel column that length H is 4mm, 6mm or 7mm.
Described oil cup seat is made by the 1Cr18NiTi stainless steel material; Described pin sample is made by beryllium-bronze material.
Utilize said apparatus to realize the secondary test method of frictional disk of controlling magnetic field: to be that the annular permanent magnet of 1 ~ 5mm is attached to the ring specimen bottom surface according to requirement of experiment with thickness h, to make between ring specimen upper surface and pin sample contact point and produce uniform magnetic field;
Under the condition in the low-carbon (LC) steel column does not place pin sample blind hole, with the different annular permanent magnet of thickness h, the magnetic field intensity between the contact point of adjusting ring specimen and pin sample;
Under the thickness h permanence condition of annular permanent magnet, adjust the length H that is located at the low-carbon (LC) steel column in the pin sample, regulate the magnetic field intensity between ring specimen and pin sample contact point;
Be located at the length H of the low-carbon (LC) steel column in the pin sample by changing annular permanent magnet thickness h and adjustment, can between ring specimen and pin sample contact point, produce uniform magnetic field.
Beneficial effect: because the size of magnetic field intensity has a great impact the greasy property of magnetic liquid, so the whether even evaluation that also can directly have influence on the magnetic liquid tribological property in friction surface magnetic field.The present invention adopts permanent magnet, pin sample and ring specimen, be placed in the oil cup seat of frictional testing machine, can produce an even adjustable magnetic field between ring specimen and pin sample contact point, in evaluation magnetic liquid tribological property process magnetic field is difficult to apply and the problem of Magnetic field inhomogeneity thereby efficiently solve.Only need to regulate the length of low-carbon (LC) steel column or the thickness of annular permanent magnet can be realized the adjusting in magnetic field.Its apparatus structure is simple, and method is easy, and is easy to operate, can effectively reflect friction and wear behavior, and the range of adjustment of magnitude of field intensity is large, has in the art widely practicality.
Description of drawings
Fig. 1 is the secondary test unit structural drawing of the frictional disk of controlling magnetic field of the present invention.
Among the figure: the 1-oil cup seat, the 2-annular permanent magnet, the 3-ring specimen, 4-sells sample, 5-low-carbon (LC) steel column.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
The secondary test unit of the frictional disk of the controlling magnetic field of invention mainly is made of oil cup seat 1, annular permanent magnet 2, ring specimen 3, pin sample 4, low-carbon (LC) steel column 5.Ring specimen 3 is located on the oil cup seat 1, and oil cup seat 1 is made by the 1Cr18NiTi stainless steel material.Ring specimen 3 is provided with the pin sample 4 that places the pin chuck, and pin sample 4 is made by beryllium-bronze material, and pin sample 4 is installed in the pin chuck, and oil cup seat 1 is connected on the stationary shaft of four-ball tester.Described ring specimen 3 has the annular groove that the degree of depth is 5mm with oil cup seat 1 contacted bottom surface, be provided with in the annular groove and be attached to that thickness h is the annular permanent magnet 2 of 1 ~ 5mm on ring specimen 3 bottom surfaces, described pin sample 4 inside are provided with the low-carbon (LC) steel column 5 that length H is 4mm, 6mm or 7mm.
The secondary test method of the frictional disk of controlling magnetic field of the present invention: be that the annular permanent magnet 2 of 1 ~ 5mm is attached to ring specimen 3 bottom surfaces according to requirement of experiment with thickness h, make on the contact point of ring specimen 3 surfaces and pin sample 4 and produce uniform magnetic field;
Under the condition in low-carbon (LC) steel column 5 does not place pin sample 4 blind holes, with the different annular permanent magnet 2 of thickness h, the magnetic field intensity between the contact point of adjusting ring specimen 3 and pin sample 4; When the thickness of annular permanent magnet 2 is respectively 1mm, 2mm, 3mm, 4mm, during 5mm, the magnetic field size between the contact point of ring specimen 3 and pin sample 4 is respectively 10mT, 19mT, 30mT, 38mT, 47mT;
Under the thickness h permanence condition of annular permanent magnet 2, adjust the length H that is located at the low-carbon (LC) steel column 5 in the pin sample 4, the magnetic field intensity between the contact point of adjusting ring specimen 3 and pin sample 4.Ring-shaped magnet take thickness as h as 2mm is example, is respectively 4mm at the intubating length H of carbon steel post 5, and when 6mm and 7mm, the magnetic field size between the contact point of ring specimen 3 and pin sample 4 is respectively 22mT, 24mT, 26mT;
The method of the insertion depth by changing annular permanent magnet 2 thickness and pin sample 4 middle low carbon steel posts 5 can produce even adjustable magnetic field between ring specimen 3 and pin sample 4 contact points.
Claims (4)
1. the secondary test unit of the frictional disk of a controlling magnetic field, comprise oil cup seat (1), be located at the ring specimen (3) on the oil cup seat (1), ring specimen (3) is provided with the pin sample (4) that places the pin chuck, it is characterized in that: described ring specimen (3) has the annular groove that the degree of depth is 5mm with the contacted bottom surface of oil cup seat (1), be provided with in the annular groove and be attached to that thickness h is the annular permanent magnet (2) of 1 ~ 5mm on ring specimen (3) bottom surface, it is 4mm that described pin sample (4) inside is provided with length H, the low-carbon (LC) steel column (5) of 6mm or 7mm.
2. the secondary test unit of the frictional disk of a kind of controlling magnetic field claimed in claim 1, it is characterized in that: described oil cup seat (1) is made by the 1Cr18NiTi stainless steel material.
3. the secondary test unit of the frictional disk of a kind of controlling magnetic field claimed in claim 1, it is characterized in that: described pin sample (4) is made by beryllium-bronze material.
4. secondary test method of frictional disk of utilizing the controlling magnetic field that claim 1,2 or 3 described devices realize, it is characterized in that: be that the annular permanent magnet (2) of 1 ~ 5mm is attached to ring specimen (3) bottom surface according to requirement of experiment with thickness h, make between ring specimen (3) upper surface and pin sample (4) contact point and produce uniform magnetic field;
Under the condition in low-carbon (LC) steel column (5) does not place pin sample (4) blind hole, with the different annular permanent magnet (2) of thickness h, the magnetic field intensity between the contact point of adjusting ring specimen (3) and pin sample (4);
Under the thickness h permanence condition of annular permanent magnet (2), adjust the length H that is located at the low-carbon (LC) steel column (5) in the pin sample (4), regulate the magnetic field intensity between ring specimen (3) and pin sample (4) contact point;
Be located at the length H of the low-carbon (LC) steel column (5) in the pin sample (4) by changing annular permanent magnet (2) thickness h and adjustment, can between ring specimen (3) and pin sample (4) contact point, produce an even adjustable magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320150.1A CN102866108B (en) | 2012-09-03 | 2012-09-03 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210320150.1A CN102866108B (en) | 2012-09-03 | 2012-09-03 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
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| Publication Number | Publication Date |
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| CN102866108A true CN102866108A (en) | 2013-01-09 |
| CN102866108B CN102866108B (en) | 2014-12-10 |
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| CN201210320150.1A Expired - Fee Related CN102866108B (en) | 2012-09-03 | 2012-09-03 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101068A (en) * | 1985-04-01 | 1987-01-24 | 索尼公司 | Magnetic devices |
| CN1347682A (en) * | 2000-10-06 | 2002-05-08 | 住友特殊金属株式会社 | Apparatus for magnetic field regulation, magnetic field regulating method and recording medium |
| CN201335830Y (en) * | 2008-12-29 | 2009-10-28 | 济南试金集团有限公司 | Pin disc friction pair device for four-ball machine |
| CN201464312U (en) * | 2009-03-25 | 2010-05-12 | 河南科技大学 | Magnetic field control device for friction and abrasion test |
| CN202770752U (en) * | 2012-09-03 | 2013-03-06 | 中国矿业大学 | Magnetic-field-adjustable friction disk pair testing device |
-
2012
- 2012-09-03 CN CN201210320150.1A patent/CN102866108B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101068A (en) * | 1985-04-01 | 1987-01-24 | 索尼公司 | Magnetic devices |
| CN1347682A (en) * | 2000-10-06 | 2002-05-08 | 住友特殊金属株式会社 | Apparatus for magnetic field regulation, magnetic field regulating method and recording medium |
| CN201335830Y (en) * | 2008-12-29 | 2009-10-28 | 济南试金集团有限公司 | Pin disc friction pair device for four-ball machine |
| CN201464312U (en) * | 2009-03-25 | 2010-05-12 | 河南科技大学 | Magnetic field control device for friction and abrasion test |
| CN202770752U (en) * | 2012-09-03 | 2013-03-06 | 中国矿业大学 | Magnetic-field-adjustable friction disk pair testing device |
Non-Patent Citations (3)
| Title |
|---|
| 徐永智 等: "直流磁场条件下45＃钢干滑动摩擦磨损性能的研究", 《润滑与密封》 * |
| 沈聪 等: "磁场作用下Fe3O4磁流体的润滑特征研究", 《2009年全国青年摩擦学学术会议论文集》 * |
| 董祥林 等: "磁场对金属摩擦磨损影响的研究及展望", 《材料科学与工程》 * |
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| CN102866108B (en) | 2014-12-10 |
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