CN102980802A - 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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- CN102980802A CN102980802A CN2012104623553A CN201210462355A CN102980802A CN 102980802 A CN102980802 A CN 102980802A CN 2012104623553 A CN2012104623553 A CN 2012104623553A CN 201210462355 A CN201210462355 A CN 201210462355A CN 102980802 A CN102980802 A CN 102980802A
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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 is to estimate the important tests means of abrasive resistance of metal material, and friction-wear test is carried out at the multifunction friction wear testing machine of specialty usually.Friction wear testing machine not only can be simulated various working, such as the rubbing wear under different temperatures, humidity, load, movement velocity and the lubricating condition, and can provide the multiple friction pair ways of contact such as the multi-motion forms such as slip, rolling, skid, linear reciprocation and point, line, surface.Wherein, face-face contact is a kind of friction pair way of contact commonly used, can be used for simulating the multiple friction pairs such as sliding bearing and axle, guide rail and slide block, cylinder and piston.Yet, in the friction-wear test of face-face contact form, often there is all the time problem of close contact of two rubbing surfaces, this problem is particularly outstanding in the larger situation of two rubbing surface contacts area, this will cause measurement result can't truly reflect the actual rubbing wear state of two rubbing surfaces, directly affect the accuracy of measurement result.In order to address this problem, the method that usually adopts is that artificial the installation adjusted sample before the test, makes two rubbing surfaces as far as possible parallel, carries out afterwards the running-in of a period of time, guarantees the depth of parallelism of two rubbing surfaces.This method needs installation and seating time of growing on the one hand; be affected by human factors greatly, when running-in, can destroy on the other hand the original state of friction surface, increase its roughness; simultaneously, the abrasive particle that produces during running-in also will cause abrasive wear in friction-wear test.For above present situation, be necessary to invent a kind of universal Self adapting fixture that solves face-face contact problems, guarantee 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 the utility model patent that name is called a kind of sliding friction test self-adaptation chuck provides a kind of self-adaptation chuck.This chuck mainly is comprised of transmission shaft, segment and retaining sleeve.Transmission shaft is fixedly connected with by screw thread with retaining sleeve, thereby the retaining sleeve lower end slopes inwardly segment is played clamping action, the upper end of segment contacts with the transmission shaft cambered surface, the lower end fixes by threaded hole and sample, because segment can be realized the fine motion of any direction in retaining sleeve, thereby has guaranteed the comprehensive engagement of face-face contact friction pair.Although the chuck of this utility model patent can be realized the universal adjustment of rubbing surface, but in process of friction and wear, rotation probably occurs together with upper sample in segment in the horizontal direction, and this will bring uncertain additional wear to friction-wear test, directly affect the experimental test result.
Summary of the invention
For deficiency of the prior art, the purpose of this invention is to provide a kind of universal Self adapting fixture that is applicable to the sliding frictional wear test, in the sliding frictional wear test, can guarantee all the time good face-face contact, can prevent that again sample is 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 that is applicable to the 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, the load that is used for friction wear testing machine is applied passes to upper sample by steel ball, and the friction force in will testing passes to the power sensor that is installed in the force transmission shaft top; Register pin and force transmission shaft interference fit, and with upper sample clearance fit, can prevent on the one hand sample in the sliding frictional wear test around the rotation of force transmission shaft occurred level, can guarantee again that on the other hand sample has enough spaces to carry out micro-universal adjustment; Steel ball places between force transmission shaft and the upper sample, and all contacts by cambered surface between force transmission shaft and upper sample, is used for realizing upper sample in the universal adjustment of sliding frictional wear test, thereby guarantees that upper sample contacts with face-face between the lower sample.
The lower surface of described upper sample has very high flatness, and lower surface can be processed into different sizes as required.
Have oil storage hole on the described upper sample, be used for storing lubricating oil, guarantee the flexible rotating of steel ball.
Universal Self adapting fixture of the present invention is for the 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, the advantage that reliability is high, simple in structure and cheap.
Description of drawings
Fig. 1 is the universal Self adapting fixture two-dimensional structure synoptic diagram that the present invention is applicable to the sliding frictional wear test;
Fig. 2 is the universal Self adapting fixture three-dimensional structure synoptic diagram that the present invention is applicable to the sliding frictional wear test.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.
Shown in Figure 1, a kind of universal Self adapting fixture that is applicable to the sliding frictional wear test comprises: 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, and the load that is used for friction wear testing machine is applied passes to upper sample 4 by steel ball 3, and the friction force in the sliding friction is passed to the power sensor that is installed in force transmission shaft 1 top.Register pin 2 and force transmission shaft 1 interference fit, and with upper sample 4 clearance fit, can prevent on the one hand sample 4 in the sliding frictional wear test around force transmission shaft 1 occurred level rotation, on the other hand, can guarantee that again sample 4 has enough spaces to carry out micro-universal adjustment.Steel ball 3 places between force transmission shaft 1 and the upper sample 4, all contacts by cambered surface with 4 on upper sample with force transmission shaft 1, be used for to realize sample 4 in the universal adjustment of sliding frictional wear test, thereby guarantees that upper sample 4 contacts with face-face between the lower sample.The lower surface of upper sample 4 has very high flatness, and lower surface can be processed into different sizes as required.Have oil storage hole 5 on the upper sample 4, be used for storing lubricating oil, guarantee the flexible rotating of steel ball 3.
More than 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 modification 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 that sliding frictional wear is tested, 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, the load that is used for friction wear testing machine is applied passes to upper sample by steel ball, and the friction force in will testing passes to the power sensor that is installed in the force transmission shaft top; Described register pin and force transmission shaft interference fit, and with upper sample clearance fit, can prevent on the one hand sample in the sliding frictional wear test around the rotation of force transmission shaft occurred level, can guarantee again that on the other hand sample has enough spaces to carry out micro-universal adjustment; Described steel ball places between force transmission shaft and the upper sample, and all contacts by cambered surface between force transmission shaft and upper sample, is used for realizing upper sample in the universal adjustment of sliding frictional wear test, thereby guarantees that upper sample contacts with face-face between the lower sample.
2. the universal Self adapting fixture that is applicable to the sliding frictional wear test according to claim 1 it is characterized in that the lower surface of described upper sample has very high flatness, and lower surface can be processed into different sizes as required.
3. the universal Self adapting fixture that is applicable to the sliding frictional wear test according to claim 1 is characterized in that, has oil storage hole on the described upper sample, is used for storing lubricating oil, guarantees 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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| CN201210462355.3A CN102980802B (en) | 2012-11-16 | 2012-11-16 | Universal self-adaption fixture for sliding friction-wear test |
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| CN102980802A true CN102980802A (en) | 2013-03-20 |
| CN102980802B CN102980802B (en) | 2014-12-24 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954497A (en) * | 2014-05-16 | 2014-07-30 | 重庆大学 | Multifunctional grinding clamp of tester for online measurement of frictional wear of materials |
| 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 |
| CN105973740A (en) * | 2016-06-14 | 2016-09-28 | 大连海事大学 | High-differential-rotating 'face-face' contact abrasion testing apparatus and 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 |
| CN108645703A (en) * | 2018-06-04 | 2018-10-12 | 江苏科技大学 | A kind of diesel engine main bearing shell specimen holder device and method of busbar automatic alignment |
| CN109900423A (en) * | 2017-12-08 | 2019-06-18 | 凯迈(洛阳)机电有限公司 | A kind of torque sensor calibration calibrating installation and its reinforcing component |
| CN110024752A (en) * | 2019-05-22 | 2019-07-19 | 吉林大学 | A kind of fixture for insect leg joint friction test |
| CN112254951A (en) * | 2020-11-24 | 2021-01-22 | 中国石油天然气集团有限公司 | Wear measuring device and method for hinged universal shaft assembly |
| CN112697452A (en) * | 2020-11-30 | 2021-04-23 | 中国汽车工程研究院股份有限公司 | Air column type pressure head of material friction test bed |
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| CN101750259A (en) * | 2010-01-19 | 2010-06-23 | 西南交通大学 | Small-displacement reciprocating rolling friction abrasion test device |
| CN101963563A (en) * | 2010-09-13 | 2011-02-02 | 西南交通大学 | Test method and test device for torsional composite fretting friction wear |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103954497A (en) * | 2014-05-16 | 2014-07-30 | 重庆大学 | Multifunctional grinding clamp of tester for online measurement of frictional wear of materials |
| 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 |
| CN105973740A (en) * | 2016-06-14 | 2016-09-28 | 大连海事大学 | High-differential-rotating 'face-face' contact abrasion testing apparatus and 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 |
| CN109900423A (en) * | 2017-12-08 | 2019-06-18 | 凯迈(洛阳)机电有限公司 | A kind of torque sensor calibration calibrating installation and its reinforcing component |
| CN108645703A (en) * | 2018-06-04 | 2018-10-12 | 江苏科技大学 | A kind of diesel engine main bearing shell specimen holder device and method of busbar automatic alignment |
| 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 |
| CN110024752A (en) * | 2019-05-22 | 2019-07-19 | 吉林大学 | A kind of fixture for insect leg joint friction test |
| CN110024752B (en) * | 2019-05-22 | 2023-10-24 | 吉林大学 | Clamp for insect leg joint friction test |
| CN112254951A (en) * | 2020-11-24 | 2021-01-22 | 中国石油天然气集团有限公司 | Wear measuring device and method for hinged universal shaft assembly |
| CN112254951B (en) * | 2020-11-24 | 2024-08-13 | 中国石油天然气集团有限公司 | Wear measurement device and method for articulated universal shaft assembly |
| CN112697452A (en) * | 2020-11-30 | 2021-04-23 | 中国汽车工程研究院股份有限公司 | Air column type pressure head of material friction test bed |
| 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 |
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