CN101995310B - Test device of frictional characteristic of sliding bearing under middle and heavy radial load - Google Patents
Test device of frictional characteristic of sliding bearing under middle and heavy radial load Download PDFInfo
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- CN101995310B CN101995310B CN201010544136A CN201010544136A CN101995310B CN 101995310 B CN101995310 B CN 101995310B CN 201010544136 A CN201010544136 A CN 201010544136A CN 201010544136 A CN201010544136 A CN 201010544136A CN 101995310 B CN101995310 B CN 101995310B
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- axle sleeve
- sliding bearing
- outer peripheral
- radial load
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Abstract
The invention relates to a test device of a frictional characteristic of a sliding bearing under a middle and heavy radial load, comprising a simulative sliding bearing, wherein the simulative sliding bearing comprises a shaft and a shaft sleeve, a radial loading device is arranged on the outer peripheral surface of the shaft sleeve, and two raised ring surfaces which have the same structure and are matched with the inner peripheral surface of the shaft sleeve in a sliding mode are symmetrically arranged on the outer peripheral surfaces of shafts arranged on both sides of loading points supported by the loading end and the outer peripheral surface of the shaft sleeve. In the invention, two raised ring surfaces are arranged on the outer peripheral surface of the shaft along an axial direction at intervals, the inner peripheral surface of the shaft sleeve is in contact with two ring projections, thus, the contact surface of the shaft sleeve and the shaft is smaller, the dimensions of related parts can be reduced in the same proportion, the working state of the sliding bearing can be simulated in reality, the internal friction force of the sliding bearing can be accurately measured in an experiment condition, and meanwhile, the two raised ring surfaces are symmetrically arranged corresponding to the loading points to ensure two even contact loads.
Description
Technical field
The present invention relates to a kind of in radially imposing, under the heavy load condition measurement mechanism of test sliding bearing moment of friction, belong to the bearing frictional torque field of measurement.
Background technology
In recent years, because the industry and the needs of development in science and technology, the research of the moment of friction of each class bearing of being applied to each field, forward position is received increasing concern.Many bibliographical informations method and the result through the theoretical analysis and calculation bearing frictional torque.Yet for obtaining the moment of friction that actual and accurate data then require under different loads, temperature, rotating speed and lubricating condition, to survey bearing; So that estimate the life-span and the work efficiency of bearing; Judge the defective and the running status of bearing, the design considerations of setting up high reliability, high efficiency, high-precision bearing.But because the antifriction function of bearing itself, its internal friction will receive the interference of radial load much smaller than suffered load when testing simultaneously inevitably, so it is very difficult to test the moment of friction of such stand under load bearing.So experimental study so far is confined to receive the rolling bearing of axial load more.And, do not see friction torque test device accurately for the sliding bearing that mainly bears radial load.Since sliding bearing in, to bear huge load capacity under the heavy load condition, under experiment condition, be difficult for life size and realize that this just makes the internal friction of the sliding bearing that bears radial load accurately record.In addition, the radial loaded that adds in the experimentation can produce the internal friction of the sliding bearing tested interferes.Shown in Figure 1 is the schematic diagram of drawing force proving installation, and this device comprises axle 1, and the outside of axle 1 freely is arranged with axle sleeve 2; Axle 1 is formed the simulation sliding bearing with axle sleeve 2; The outer peripheral face of axle sleeve 2 is provided with the radial loaded device, and the loading end of radial loaded device and the outer peripheral face of axle sleeve radially roof pressure cooperate, and the outer peripheral face of axle sleeve 2 is provided with test block 14; Sensor 11 roof pressures on the test block, through the test block to the pressure test of sensor friction force from axle sleeve.In order to make loading reliable and stable; The radial loaded of charger 15 often directly contacts axle sleeve 2 and radial load is added is located on the axle sleeve 2; Charger cooperates the rotation trend that can hinder axle sleeve 2 with the sliding contact of axle sleeve; Thereby interference sensor 11 accurately records friction force through the power that test test block receives, and causes friction testing inaccurate.
Summary of the invention
The object of the present invention is to provide a kind of in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; To solve in the prior art since sliding bearing in, to bear huge load capacity under the heavy load condition, under experiment condition, be difficult for the life size test and problem that the internal friction of the sliding bearing that bears radial load that causes can't accurately record.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; Comprise the simulation sliding bearing of forming by axle and the axle sleeve on the outer peripheral face that is set in axle; The outer peripheral face of axle sleeve is provided with the radial loaded device; The loading end of radial loaded device and the outer peripheral face of axle sleeve radially roof pressure cooperate, and are symmetrically arranged with two protruding circular ring faces that structure is identical on the outer peripheral face of said loading end and the axle of the load(ing) point both sides of the outer peripheral face roof pressure of axle sleeve, and the inner peripheral surface of axle sleeve and two protruding circular ring faces are slidingly matched.
The loading end of said radial loaded device loads rolling bearing through one and adds radial load to axle sleeve, and the outer ring of said loading rolling bearing and axle sleeve rolling compression fit load the axis of rolling bearing and said parallel axes setting.
Said axle sleeve is through the outer ring rolling compression fit of a support set and said loading rolling bearing, and the support set axial location, radially spline is set on the outer peripheral face of axle sleeve, and the outer peripheral face of axle sleeve cooperates with the inner peripheral surface of support set.
Said radial loaded device is a leverage, and the output terminal of leverage constitutes loading end, and said loading rolling bearing is arranged on the output terminal of leverage, and the input end of leverage hangs and is provided with the counterweight load maintainer.
Said leverage is 1+2N level series connection leverage, and N is an integer.
Described leverage is three grades of series connection leverages.
Be provided with the axial hole that is used to be provided with heating rod and temperature measuring equipment between the inside and outside side face of described support set.
Said axial hole is circumferentially evenly laid along support set.
Described support set is provided with the greasing hole that is radially extended to the greasing in axle sleeve of inner peripheral surface by outer peripheral face, and the greasing hole is between two protruding circular ring faces, and the correspondence position of axle sleeve is provided with the duct that is communicated with said greasing hole and axle sleeve endoporus.
Said greasing hole is two, lays along the axially spaced-apart of support set.
The outer peripheral face upper edge axially spaced-apart of axle of the present invention is provided with two protruding circular ring faces; The inner peripheral surface of axle sleeve contacts with two annulus are protruding; Like this, axle sleeve is less with the surface of contact of axle, can reduce the size of associated components in proportion; Make that the duty of sliding bearing is able to simulation in the reality, make the internal friction of sliding bearing under experiment condition, be able to accurate measurement.Simultaneously, two protruding circular ring faces are symmetrical set with respect to load(ing) point, and it is even to guarantee that axle sleeve and two places of axle contact stand under load.
Radial loaded device of the present invention is that axle sleeve adds radial load through loading rolling bearing; Load is delivered on the axle sleeve by rolling bearing; Because the friction factor of rolling bearing is than little one to two one magnitude of friction factor of sliding bearing; So the frictional resistance by its generation can be ignored; Therefore load rolling bearing and can ignore to the obstruction that axle sleeve rotatablely moves, the measurement to bearing frictional torque in the time of therefore can solving radial loaded well produces this difficult problem of interference, thereby can record the sliding bearing internal friction accurately.
The outside of axle sleeve of the present invention is arranged with support set, and the radial loaded device adds load through support set and is located on the axle sleeve, and support set has been strengthened the rigidity of axle sleeve.
Radial loaded device of the present invention is three grades of lever series connection leverages, and the loading system of connecting through three grades of levers is that axle sleeve loads, and can realize that limited load mass produces the effect of very big load.The loading impact is little, simple in structure, load stable.
Be provided with the axial hole that is used to be provided with heating rod and temperature measuring equipment between the inside and outside side face of support set of the present invention; Heating rod is set in axial hole can be heated for sliding bearing; The high-temperature work environment of sliding bearing under big load in the simulating reality, the actual moment of friction of testing sliding bearing more accurately.
Description of drawings
Fig. 1 is the schematic diagram of drawing force proving installation in the prior art;
Fig. 2 is the structural representation of the embodiment of the invention;
Fig. 3 is for loading the structural representation that rolling bearing provides the leverage of snap-in force among Fig. 2.
Embodiment
A kind of in, a kind of embodiment of the proving installation of sliding bearing rubbing characteristics under the heavy radial load; In Fig. 2, Fig. 3, this proving installation comprises axle 1, freely is arranged with axle sleeve 2 on the axle 1; Axle 1 is formed the simulation sliding bearing with axle sleeve 2; Axle 1 outer peripheral face is provided with the axially spaced-apart setting of identical protruding circular ring face 13, the two protruding circular ring faces 13 of two structures along axle 1, and the inner peripheral surface of axle sleeve 2 and two protruding circular ring faces 13 are slidingly matched; Two protruding circular ring faces 13 are that the load(ing) point that axle sleeve 2 loads is symmetrical set with respect to the radial loaded device, that is to say that the radial loaded device is that the load(ing) point that axle sleeve 2 loads equates with the distance of two protruding circular ring faces 13.
As the improvement of technique scheme, the loading end of radial loaded device adds radial load through loading rolling bearing 5 for axle sleeve 2, loads outer ring and the axle sleeve 2 rolling compression fit of rolling bearing 5, loads the axis of rolling bearing 5 and spool 1 parallel axes.
As the improvement of technique scheme, the radial loaded device is the plural serial stage leverage, loads the output terminal that rolling bearing 5 is arranged on leverage.This leverage is three grades of series connection leverages; Comprise three levers 9; Loading rolling bearing 5 is arranged on an end of third level lever; The other end of this lever links to each other with an end of second level lever through connecting rod 10, and the other end of second level lever links to each other through connecting rod with an end of first order lever, and the other end of first order lever hangs and is provided with counterweight loading structure 7.Be provided with fulcrum 8 on three levers.Be rotatedly connected through hinged between each lever and the connecting rod, also for being rotationally connected, the assurance counterweight can add and not fall down between counterweight loading structure 7 and the lever.Here, can adjust fulcrum 8 on lever the position and make the gravity of the power of leverage output terminal much larger than counterweight.As the case may be, those skilled in the art can do concrete conversion as required.
Improvement as technique scheme; Load rolling bearing 5 and add radial load for axle sleeve through support set 3; Support set 3 is set in the outside of axle sleeve 2; Its endoporus side face contacts axial limiting with the outer peripheral face of axle sleeve 2, radially spline cooperates, and loads the outer ring and the outer peripheral face rolling compression fit of support set 3 of rolling bearing 5, and the outer ring of loading rolling bearing 5 is pressed on the outer peripheral face of support set 3 through support set 3 and for axle sleeve 2 radial load is provided; Can roll with support set 3 in the outer ring that loads rolling bearing 5, reduce to load the friction force of the outer ring of rolling bearing 5 to support set 3.The outer ring that loads rolling bearing 5 equates with the distance of two protruding circular ring faces 13 with the point of support set compression fit.It here between support set and the axle sleeve transition fit; Support set 3 can revolve screw and axle sleeve on the jacket wall that is located at support set through screw thread radially realizes axial limiting and spline radially; The inner face of screw holds out against on the outer peripheral face of axle sleeve; Support set 3 just can not rotate with respect to axle sleeve like this, can also on the end face of support set and axle sleeve, press and establish upper end cover, realizes the location between support set and the axle sleeve through end cap.More than two kinds of locator meamss make support set can be easily by pulling down on the axle sleeve, conveniently in experimentation, change impaired axle sleeve.
As the improvement of above scheme, be provided with axially extended axial hole 6 between the inside and outside side face of support set 3, axial hole 6 is circumferentially evenly laid along support set 3; Axial hole 6 is used to be provided with heating rod and temperature measuring equipment, and heating rod can heat for axle sleeve, the actual working state of simulation sliding bearing; Because in real work; Under the effect of big load, sliding bearing tends to heating, and bearing working is in the environment of high temperature.
As the improvement of above scheme, support set 3 is provided with greasing hole 4, and greasing hole 4 radially extends to the inner peripheral surface of support set 3 by the outer peripheral face of support set 3, is provided with duct 12 at the correspondence position of axle sleeve 2, and duct 12 is communicated with the endoporus of greasing hole 4 with axle sleeve 2.The greasing hole has two, along the axially spaced-apart setting of support set 3.Two greasing holes all are arranged between the two protruding circular ring faces.The loading rolling bearing of present embodiment can be radial ball bearing, roller bearing, the needle bearing of different series.
Be provided with support set in the present embodiment, also support set can be set, load the outer ring of rolling bearing can be directly and the outer peripheral face contact matching of axle sleeve 2 also apply radial force for it.
The loading rolling bearing of present embodiment is that axle sleeve adds radial force through leverage, also can adopt hydraulic pressure or electromagnetism etc. can provide the device of vertical force to apply vertical force for loading rolling bearing.
Tested sliding bearing in the present embodiment adopts grease lubrication, but also can adopt oil lubrication, solid lubrication, also can be in experimentation not to sliding bearing lubricating, and the internal friction of test sliding bearing under unlubricated condition.
Leverage in the present embodiment is three grades of series connection leverages, also can be other 1+2N level series connection leverages, and wherein N is an integer, and the progression of leverage is many more, and amplification is just big more, and the loading force that the counterweight of some obtains is just big more.
The test block of present embodiment is arranged on the outer peripheral face of support set, and test block, sensor and test, transmission, disposal route that both are correlated with are identical with prior art, are not described in detail in this.
Claims (10)
- One kind in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; Comprise the simulation sliding bearing of forming by axle and the axle sleeve on the outer peripheral face that is set in axle; The outer peripheral face of axle sleeve is provided with the radial loaded device; The loading end of radial loaded device and the outer peripheral face of axle sleeve radially roof pressure cooperate; It is characterized in that: be symmetrically arranged with two protruding circular ring faces that structure is identical on the outer peripheral face of the axle of the load(ing) point both sides of said loading end and the outer peripheral face roof pressure of axle sleeve, the inner peripheral surface of axle sleeve and two protruding circular ring faces are slidingly matched.
- 2. according to claim 1 in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; It is characterized in that: the loading end of said radial loaded device loads rolling bearing through one and adds radial load to axle sleeve; The outer ring of said loading rolling bearing and axle sleeve rolling compression fit load the axis of rolling bearing and said parallel axes setting.
- 3. according to claim 2 in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; It is characterized in that: said axle sleeve is through the outer ring rolling compression fit of a support set and said loading rolling bearing; The support set axial location, radially spline is set on the outer peripheral face of axle sleeve, and the outer peripheral face of axle sleeve cooperates with the inner peripheral surface of support set.
- 4. according to claim 3 in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; It is characterized in that: said radial loaded device is a leverage; The output terminal of leverage constitutes loading end; Said loading rolling bearing is arranged on the output terminal of leverage, and the input end of leverage hangs and is provided with the counterweight load maintainer.
- 5. according to claim 4 in, the proving installation of heavy radial load sliding bearing rubbing characteristics down, it is characterized in that: said leverage is the 1+2N level leverage of connecting, and N is an integer.
- 6. according to claim 5 in, the proving installation of heavy radial load sliding bearing rubbing characteristics down, it is characterized in that: described leverage is three grades of leverages of connecting.
- 7. according to claim 6 in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load, it is characterized in that: be provided with the axial hole that is used to be provided with heating rod and temperature measuring equipment between the inside and outside side face of described support set.
- 8. according to claim 7 in, the proving installation of heavy radial load sliding bearing rubbing characteristics down, it is characterized in that: said axial hole is along the circumferentially evenly laying of support set.
- 9. according to claim 8 in, the proving installation of sliding bearing rubbing characteristics under the heavy radial load; It is characterized in that: described support set is provided with the greasing hole that is radially extended to the greasing in axle sleeve of inner peripheral surface by outer peripheral face; The greasing hole is between two protruding circular ring faces, and the correspondence position of axle sleeve is provided with the duct that is communicated with said greasing hole and axle sleeve endoporus.
- 10. according to claim 9 in, the proving installation of heavy radial load sliding bearing rubbing characteristics down, it is characterized in that: said greasing hole is two, along the axially spaced-apart laying of support set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010544136A CN101995310B (en) | 2010-11-15 | 2010-11-15 | Test device of frictional characteristic of sliding bearing under middle and heavy radial load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010544136A CN101995310B (en) | 2010-11-15 | 2010-11-15 | Test device of frictional characteristic of sliding bearing under middle and heavy radial load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101995310A CN101995310A (en) | 2011-03-30 |
| CN101995310B true CN101995310B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010544136A Expired - Fee Related CN101995310B (en) | 2010-11-15 | 2010-11-15 | Test device of frictional characteristic of sliding bearing under middle and heavy radial load |
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| CN (1) | CN101995310B (en) |
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| CN102410902B (en) * | 2011-11-22 | 2013-12-25 | 河南科技大学 | Ball and disc type tester for measuring elastic fluid frictional force of lubricant |
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| CN103353398B (en) * | 2013-07-29 | 2015-08-26 | 洛阳Lyc轴承有限公司 | High-speed overload railway bearing testing table radial loaded mechanism |
| CN104101499A (en) * | 2014-07-24 | 2014-10-15 | 浙江双飞无油轴承股份有限公司 | Linear motion friction abrasion testing device for shaft sleeve type sliding bearing |
| CN104614269A (en) * | 2015-02-15 | 2015-05-13 | 核工业理化工程研究院 | Anti-wear performance testing device for bearing |
| CN106226080A (en) * | 2016-08-31 | 2016-12-14 | 洛阳轴研科技股份有限公司 | A kind of bearing test device |
| CN108020358B (en) * | 2017-12-29 | 2024-02-02 | 深圳市奥酷曼智能技术有限公司 | Peripheral contact moment sensing device and electric power-assisted vehicle |
| CN109855871B (en) * | 2019-01-03 | 2021-01-22 | 洛阳轴承研究所有限公司 | Needle bearing test equipment |
| CN110398367B (en) * | 2019-07-03 | 2021-06-11 | 国家能源集团科学技术研究院有限公司 | Measuring device for measuring dynamic coefficient of sliding bearing |
| CN112857791B (en) * | 2021-01-25 | 2021-12-03 | 华中科技大学 | Device for detecting position and posture of bearing hole of rotating shaft system based on compliance deflection curve |
| CN114526913A (en) * | 2022-02-23 | 2022-05-24 | 郑州众城润滑科技有限公司 | Device and method for testing lubricating performance of slewing bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1479842A1 (en) * | 1987-04-02 | 1989-05-15 | Ленинградская лесотехническая академия им.С.М.Кирова | Device for investigation of plain bearing |
| CN2225676Y (en) * | 1995-04-26 | 1996-04-24 | 张祖明 | On line measuring tester for sliding thrust bearing accelerating abrasion |
| JP3081806B2 (en) * | 1997-01-09 | 2000-08-28 | 日本ピラー工業株式会社 | Packing sliding resistance inspection device |
-
2010
- 2010-11-15 CN CN201010544136A patent/CN101995310B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1479842A1 (en) * | 1987-04-02 | 1989-05-15 | Ленинградская лесотехническая академия им.С.М.Кирова | Device for investigation of plain bearing |
| CN2225676Y (en) * | 1995-04-26 | 1996-04-24 | 张祖明 | On line measuring tester for sliding thrust bearing accelerating abrasion |
| JP3081806B2 (en) * | 1997-01-09 | 2000-08-28 | 日本ピラー工業株式会社 | Packing sliding resistance inspection device |
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| CN101995310A (en) | 2011-03-30 |
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Granted publication date: 20120926 Termination date: 20131115 |