CN102980802B - Universal self-adaption fixture for sliding friction-wear test - Google Patents
Universal self-adaption fixture for sliding friction-wear test Download PDFInfo
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- CN102980802B CN102980802B CN201210462355.3A CN201210462355A CN102980802B CN 102980802 B CN102980802 B CN 102980802B CN 201210462355 A CN201210462355 A CN 201210462355A CN 102980802 B CN102980802 B CN 102980802B
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Abstract
The invention provides a universal self-adaption fixture for a sliding friction-wear test. The universal self-adaption fixture for the sliding friction-wear test comprises a force transmission shaft, a locating pin, a steel ball and an upper sample, wherein the upper end of the force transmission shaft is fixedly connected with a friction-wear testing machine, the locating pin is in interference fit with the force transmission shaft, and is in clearance fit with the upper sample. On one hand, the upper sample can be prevented from self-rotating along the force transmission shaft in the sliding friction-wear test, and on the other hand, the upper sample can be guaranteed to have enough space to carry out micro universal adjustment. The steel ball is arranged between the force transmission shaft and the upper sample, and is used for achieving the universal adjustment of the upper sample in the sliding friction-wear test. An oil hole is formed in the upper sample and used for storing lubricating oil, and the flexible rotating of the steel ball is guaranteed. The universal self-adaption fixture for the sliding friction-wear test can maintain surface-to-surface contact consistently, and has the advantages of being high in reliability, simple in structure and low in manufacture cost.
Description
Technical field
The present invention relates to a kind of universal Self adapting fixture, particularly, relate to a kind of universal Self adapting fixture for the test of mechanical engineering field sliding frictional wear.
Background technology
Friction-wear test evaluates the important tests means of abrasive resistance of metal material, and friction-wear test is carried out usually on the multifunction friction wear testing machine of specialty.Friction wear testing machine not only can simulate various working, as the rubbing wear under different temperatures, humidity, load, movement velocity and lubricating condition, and the multiple friction pair ways of contact such as multi-motion form and point, line, surface such as slip, rolling, skid, linear reciprocation can be provided.Wherein, face-face contact is a kind of conventional friction pair way of contact, can be used for simulating sliding bearing and multiple friction pair such as axle, guide rail and slide block, cylinder and piston etc.But, in the friction-wear test of face-face contact form, often there are two rubbing surfaces can not the problem of close contact all the time, this problem is particularly outstanding when two rubbing surface contacts area are larger, this actual rubbing wear state that will measurement result caused truly cannot to reflect two rubbing surfaces, directly affects the accuracy of measurement result.In order to address this problem, the method usually adopted is, before test, artificial mounting and adjusting sample, makes two rubbing surfaces as far as possible parallel, carry out the running-in of a period of time afterwards, guarantee the depth of parallelism of two rubbing surfaces.This method needs longer installation and seating time on the one hand; be affected by human factors large, the original state of friction surface can be destroyed on the other hand when running-in, increase its roughness; meanwhile, the abrasive particle produced during running-in also will cause abrasive wear in friction-wear test.For above present situation, be necessary the universal Self adapting fixture inventing a kind of face of solving-face contact problems, ensure that two friction surfaces have the good depth of parallelism all the time in process of friction and wear.
Through the retrieval to prior art, China Patent No. is 200920298882.9, and name is called that the utility model patent of a kind of sliding friction test self-adaptation chuck provides a kind of self-adaptation chuck.This chuck forms primarily of transmission shaft, segment and retaining sleeve.Transmission shaft is fixedly connected with by screw thread with retaining sleeve, retaining sleeve lower end slopes inwardly thus plays clamping action to segment, the upper end of segment contacts with transmission shaft cambered surface, lower end is fixed by threaded hole and sample, because segment can realize the fine motion of any direction in retaining sleeve, thus ensure that the comprehensive engagement of face-face contact friction pair.Although the chuck of this utility model patent can realize the universal adjustment of rubbing surface, but in process of friction and wear, probably there is rotation together with upper sample in segment, this will bring uncertain additional wear to friction-wear test, directly affect experimental test result in the horizontal direction.
Summary of the invention
For deficiency of the prior art, the object of this invention is to provide a kind of universal Self adapting fixture being applicable to sliding frictional wear test, all the time can ensure good face-face contact in sliding frictional wear test, sample can be prevented again around the rotation of force transmission shaft occurred level.
The technical solution adopted in the present invention is as follows:
A kind of universal Self adapting fixture being applicable to sliding frictional wear test, comprise: force transmission shaft, register pin, steel ball, upper sample, wherein, the upper end of force transmission shaft is fixedly connected with friction wear testing machine, load for being applied by friction wear testing machine passes to upper sample by steel ball, and the friction force in test is passed to the force snesor be arranged on above force transmission shaft; Register pin and force transmission shaft interference fit, and with upper sample clearance fit, sample can be prevented on the one hand in sliding frictional wear test around the rotation of force transmission shaft occurred level, can ensure that again sample has enough spaces to carry out micro-universal adjustment on the other hand; Steel ball is placed between force transmission shaft and upper sample, is all contacted by cambered surface with between force transmission shaft with upper sample, for realizing the universal adjustment of upper sample in sliding frictional wear test, thus ensures that upper face-face between sample with lower sample contacts.
The lower surface of described upper sample has very high flatness, and lower surface can be processed into different sizes as required.
Described upper sample having oil storage hole, for storing lubricating oil, ensureing the flexible rotating of steel ball.
Universal Self adapting fixture of the present invention, for sliding frictional wear test provides a kind of Self adapting fixture that can remain face-face contact.Compared with prior art, the present invention has and can prevent the rotation of sample occurred level, reliability is high, structure is simple and cheap advantage.
Accompanying drawing explanation
Fig. 1 is the universal Self adapting fixture two-dimensional structure schematic diagram that the present invention is applicable to sliding frictional wear test;
Fig. 2 is the universal Self adapting fixture three-dimensional structure schematic diagram that the present invention is applicable to sliding frictional wear test.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.
Shown in Fig. 1, a kind of universal Self adapting fixture being applicable to sliding frictional wear test, comprising: force transmission shaft 1, register pin 2, steel ball 3, upper sample 4 and oil storage hole 5.The upper end of force transmission shaft 1 is fixedly connected with friction wear testing machine, passes to upper sample 4, and the friction force in sliding friction is passed to the force snesor be arranged on above force transmission shaft 1 for the load applied by friction wear testing machine by steel ball 3.Register pin 2 and force transmission shaft 1 interference fit, and with upper sample 4 clearance fit, sample 4 can be prevented on the one hand in sliding frictional wear test around the rotation of force transmission shaft 1 occurred level, on the other hand, can ensure that again sample 4 has enough spaces to carry out micro-universal adjustment.Steel ball 3 is placed between force transmission shaft 1 and upper sample 4, is all contacted by cambered surface with between force transmission shaft 1 with upper sample 4, for realizing the universal adjustment of upper sample 4 in sliding frictional wear test, thus ensures that upper face-face between sample 4 with lower sample contacts.The lower surface of upper sample 4 has very high flatness, and lower surface can be processed into different sizes as required.Upper sample 4 having oil storage hole 5, for storing lubricating oil, ensureing the flexible rotating of steel ball 3.
Above specific embodiments of the invention are described.It is pointed out that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (3)
1. one kind is applicable to the universal Self adapting fixture of sliding frictional wear test, it is characterized in that, comprise: force transmission shaft, register pin, steel ball and upper sample, wherein, the upper end of described force transmission shaft is fixedly connected with friction wear testing machine, load for being applied by friction wear testing machine passes to upper sample by steel ball, and the friction force in test is passed to the force snesor be arranged on above force transmission shaft; Described register pin and force transmission shaft interference fit, and with upper sample clearance fit, sample can be prevented on the one hand in sliding frictional wear test around the rotation of force transmission shaft occurred level, can ensure that again sample has enough spaces to carry out micro-universal adjustment on the other hand; Described steel ball is placed between force transmission shaft and upper sample, is all contacted by cambered surface with between force transmission shaft with upper sample, for realizing the universal adjustment of upper sample in sliding frictional wear test, thus ensures that upper face-face between sample with lower sample contacts.
2. the universal Self adapting fixture being applicable to sliding frictional wear test according to claim 1, it is characterized in that, the lower surface of described upper sample is processed into different sizes as required.
3. the universal Self adapting fixture being applicable to sliding frictional wear test according to claim 1, is characterized in that, described upper sample has oil storage hole, for storing lubricating oil, ensures the flexible rotating of steel ball.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210462355.3A CN102980802B (en) | 2012-11-16 | 2012-11-16 | Universal self-adaption fixture for sliding friction-wear test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210462355.3A CN102980802B (en) | 2012-11-16 | 2012-11-16 | Universal self-adaption fixture for sliding friction-wear test |
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| CN102980802A CN102980802A (en) | 2013-03-20 |
| CN102980802B true CN102980802B (en) | 2014-12-24 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103994925A (en) * | 2014-05-12 | 2014-08-20 | 南通市建筑科学研究院有限公司 | A clamping testing device of an ectro-hydraulic compression-testing machine |
| CN103954497B (en) * | 2014-05-16 | 2016-05-25 | 重庆大学 | A kind of multi-functional to grinding jig for on-line measurement material friction-abrasion tester |
| CN105973740B (en) * | 2016-06-14 | 2019-01-04 | 大连海事大学 | High differential speed rotation " surface-to-surface " contact wear experimental rig and test method |
| CN106840931A (en) * | 2016-12-27 | 2017-06-13 | 北京化工大学 | A kind of oil field many test block friction wear testing machines self-regulation chucks of macromolecular material |
| CN109900423B (en) * | 2017-12-08 | 2021-09-03 | 凯迈(洛阳)机电有限公司 | Calibrating device for torque sensor calibration and force application assembly thereof |
| CN108645703B (en) * | 2018-06-04 | 2019-09-27 | 江苏科技大学 | A kind of diesel engine main bearing shell specimen holder device and method of bus automatic alignment |
| CN110024752B (en) * | 2019-05-22 | 2023-10-24 | 吉林大学 | Clamp for insect leg joint friction test |
| CN112697452B (en) * | 2020-11-30 | 2024-03-26 | 中国汽车工程研究院股份有限公司 | Material friction test bed air column type pressure head |
Citations (1)
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| CN201121367Y (en) * | 2007-10-31 | 2008-09-24 | 北京市建筑设计研究院 | Universal rotating spherical hinge node clamper with steel structure |
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| DE3301543A1 (en) * | 1983-01-19 | 1984-07-19 | Carl Schenck Ag, 6100 Darmstadt | Play-free ball joint, especially for test devices |
| CN101608986B (en) * | 2009-07-06 | 2010-12-29 | 西南交通大学 | Bidirectional final motion test fixture and bidirectional final motion test method thereof |
| CN101750259B (en) * | 2010-01-19 | 2011-11-16 | 西南交通大学 | Small-displacement reciprocating rolling friction abrasion test device |
| CN101963563B (en) * | 2010-09-13 | 2012-06-13 | 西南交通大学 | Test device for torsional composite fretting friction wear test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201121367Y (en) * | 2007-10-31 | 2008-09-24 | 北京市建筑设计研究院 | Universal rotating spherical hinge node clamper with steel structure |
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