CN202770752U - Magnetic-field-adjustable friction disk pair testing device - Google Patents
Magnetic-field-adjustable friction disk pair testing device Download PDFInfo
- Publication number
- CN202770752U CN202770752U CN 201220443602 CN201220443602U CN202770752U CN 202770752 U CN202770752 U CN 202770752U CN 201220443602 CN201220443602 CN 201220443602 CN 201220443602 U CN201220443602 U CN 201220443602U CN 202770752 U CN202770752 U CN 202770752U
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- test sample
- magnetic field
- permanent magnet
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Abstract
A magnetic-field-adjustable friction disk pair testing device is used for evaluating tribological properties of magnetic liquid under the effect of a magnetic field. The magnetic-field-adjustable friction disk pair testing device comprises an oil cup seat, an annular test sample and a pin test sample, wherein an annular groove is arranged on the contacted bottom surfaces of the annular test and the oil cup seat, an annular permanent magnet attached to the bottom surface of the annular test sample is arranged in the annular groove, and a low-carbon steel column is arranged in the pin test sample. According to testing requirements, the permanent magnet is attached to the bottom surface of the annular test sample, and the uniform magnetic field is generated between the surface of the annular test sample and the contact surface of the annular permanent magnet. By changing the thickness of the annular permanent magnet and adjusting the length of the low-carbon steel column arranged in the pin test sample, the uniform and adjustable magnetic field can be generated between contact points of the annular test sample and the pin test sample. Therefore, the test on the tribological properties of the magnetic liquid under different magnetic field intensity can be performed, and frictional wear properties of the magnetic liquid can be evaluated comprehensively and accurately. Besides, the magnetic-field-adjustable friction disk pair testing device can be further used for evaluating the tribological properties of other lubricating agents under the effect of the magnetic field.
Description
Technical field
The utility model relates to a kind of secondary test unit of frictional disk of controlling magnetic field, is particularly useful for estimating magnetic fields magnetic fluid friction performance, also is 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: the purpose of this utility model 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 utility model, 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 utility model 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 utility model.
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 embodiment of the present utility model is further described:
The secondary test unit of the frictional disk of the controlling magnetic field of utility model 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.
Claims (3)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220443602 CN202770752U (en) | 2012-09-03 | 2012-09-03 | Magnetic-field-adjustable friction disk pair testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220443602 CN202770752U (en) | 2012-09-03 | 2012-09-03 | Magnetic-field-adjustable friction disk pair testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770752U true CN202770752U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220443602 Expired - Fee Related CN202770752U (en) | 2012-09-03 | 2012-09-03 | Magnetic-field-adjustable friction disk pair testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202770752U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866108A (en) * | 2012-09-03 | 2013-01-09 | 中国矿业大学 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN108593541A (en) * | 2018-03-22 | 2018-09-28 | 深圳大学 | A kind of rubbing device and its test method of extra electric field induction |
-
2012
- 2012-09-03 CN CN 201220443602 patent/CN202770752U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866108A (en) * | 2012-09-03 | 2013-01-09 | 中国矿业大学 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN107063908B (en) * | 2017-04-11 | 2019-09-17 | 西南交通大学 | A kind of magnetic environment tribological test device in controllable horizontal direction magnetic field |
| CN108593541A (en) * | 2018-03-22 | 2018-09-28 | 深圳大学 | A kind of rubbing device and its test method of extra electric field induction |
| CN108593541B (en) * | 2018-03-22 | 2021-01-05 | 深圳大学 | Friction device induced by external electric field and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150903 |
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| EXPY | Termination of patent right or utility model |