CN109596516A - Friction and wear characteristic testing device and testing method thereof - Google Patents
Friction and wear characteristic testing device and testing method thereof Download PDFInfo
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- CN109596516A CN109596516A CN201811501351.5A CN201811501351A CN109596516A CN 109596516 A CN109596516 A CN 109596516A CN 201811501351 A CN201811501351 A CN 201811501351A CN 109596516 A CN109596516 A CN 109596516A
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- 238000012360 testing method Methods 0.000 title claims abstract description 128
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- 238000010998 test method Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a friction and wear characteristic testing device which comprises a rack, a driving mechanism, a test shaft, a bearing bush, a pressurizing seat, a force measuring rod, a force measuring instrument and a dial indicator, wherein the test shaft is rotatably connected with the rack, one end of the test shaft is fixed on the output end of the driving mechanism, one end of the test shaft, which is far away from the driving mechanism, is sleeved with the bearing bush, the test shaft can rotate relative to the bearing bush under the driving of the driving mechanism, one end of the force measuring rod is fixedly connected with the bearing bush, one end of the force measuring rod, which is far away from the bearing bush, is provided with the force measuring instrument, the pressurizing seat is sleeved on the outer side of the bearing bush and can apply pressure to the bearing bush, and the testing end of the dial indicator is abutted against the bearing bush. The invention also relates to a friction and wear characteristic testing method. The invention provides a testing device and a testing method for testing the friction performance of the surface of a revolving body.
Description
Technical field
The present invention relates to material friction technical field of performance test more particularly to a kind of friction and wear characteristic test device and
Its test method.
Background technique
One of the principal mode of fretting wear part failure, the frictional behaviour of piece surface will have a direct impact on machinery equipment
Reliability, the utilization rate of durability and energy, therefore study wear law, improve material and machine components wearability, it is right
Economize on resources, reduce material consumption and extend parts life-span be all of great significance.
Frictional behaviour of the part under different operating conditions is different, therefore the research of frictional behaviour is more complicated.It is many
It is more research shows that the micro- texture in surface can improve the frictional behaviour on part time job surface well, be widely used in cylinder sleeve, work
The working surface of plug, cutter and mold.The micro- texture part friction performance testing device in surface is just in planar friction at present,
The device of the micro- texture frictional behaviour of revolving body surface is not tested, therefore, design studies, which go out one kind and can test revolving body surface, to rub
The device for wiping performance is necessary.
Summary of the invention
The technical problems to be solved by the invention are how to test the frictional behaviour of revolving body surface.
The technical proposal adopted by the invention to solve the above technical problems is that:
A kind of friction and wear characteristic test device, including organic frame, driving mechanism, test axis, bearing shell, pressure foot, dynamometry
Bar and dynamometer, the test axis are connect with the gantry rotation, and one end of the test axis is fixed on the driving mechanism
On output end, the test axis is socketed with the bearing shell far from one end of the driving mechanism, and the test axis is in the driving
It can be rotated relative to the bearing shell under the driving of mechanism, one end of the dynamometer link is fixedly connected with the bearing shell, the dynamometer link
One end far from the bearing shell is provided with the dynamometer, and the pressure foot is socketed in the outside of the bearing shell, and can be to described
Bearing shell applies pressure, and the test lead of the amesdial supports on the bearing shell.
In a preferred embodiment, it is provided with fuel feed hole on the bearing shell, it can be described by the fuel feed hole
Lubricating oil is added between test axis and bearing shell.
It in a preferred embodiment, further include having pressing lever, one end of the pressing lever and the pressurization
Seat is supported far from the side of the bearing shell, and the pressing lever is provided with objective table far from one end of the pressure foot, described to add
Pressure lever is supported in medium position and the rack.
In a preferred embodiment, the side of the pressure foot towards the pressing lever is provided with the first V-arrangement
Groove, one end that the pressing lever supports the pressure foot are provided with the first V-arrangement protrusion, and the first V-arrangement protrusion grafting is supported
It holds in first v-depression.
In a preferred embodiment, roller, the roller are additionally provided between the pressure foot and the bearing shell
Axle center and the bearing shell axis parallel.
It in a preferred embodiment, further include having bearing, the bearing includes outer ring and inner ring, the outer ring
It is fixed in the rack, the test axis is plugged in the inner ring and the relatively described inner ring is removably secured.
It in a preferred embodiment, further include having outer tight loop, interior tight loop and nut, the test axis grafting
In the interior tight loop, the nut and outer tight loop are successively socketed on the interior tight loop, the outer tight loop grafting
In the inner ring, the face that the outer tight loop and interior tight loop offset is set as the identical inclined-plane of slope, the nut with
Interior tight loop is threadedly engaged, and when the nut is rotated relative to the interior tight loop, the outer tight loop, interior tight loop can be distinguished
It is supported with the inner ring, test axis extruding, so that the relatively described inner ring of test axis is fixed or the outer tight loop, interior
Tight loop is supported with the inner ring, test axis disengaging respectively, so that the test axis is detached from the inner ring.
In a preferred embodiment, the output end of the driving mechanism passes through yielding coupling and the test axis
It is fixedly connected.
A kind of friction and wear characteristic test method, includes following steps,
S10 is plugged to axis is tested in bearing shell, and makes to test axis and bush gap cooperates；
S20 applies pressure to bearing shell and test axis by pressure foot；
S30 returns to zero amesdial, and supports the test lead of amesdial with bearing shell；
S40 adds lubricating oil between test axis and bearing shell；
S50 to test axis with respect to bearing shell by driving mechanism with certain rotational speed, and amesdial and dynamometer are recorded
Reading.
S60 is calculated the ink thickness between test axis and bearing shell and tests the coefficient of friction of axis and bearing shell.
In a preferred embodiment, in step S60, according to the reading of dynamometer, pass through the torque of dynamometer link
EQUILIBRIUM CALCULATION FOR PROCESS obtains the frictional force F between test axis and bearing shell, in conjunction with the radial load P that pressure foot applies, passes through formula f=
F/P finds out the coefficient of friction f of test axis and bearing shell.
The beneficial effects of the present invention are:
The present invention makes to test axis relative to bearing shell rotation, tests axis and bearing shell connects for line according to the working principle of sliding bearing
Lubricating oil is added between test axis and bearing shell when test in touching, adjusts revolving speed of the test axis with respect to bearing shell by driving mechanism, leads to
It is overpressurized seat and certain load is loaded to test axis, calculated between test axis and bearing shell by the reading of amesdial and dynamometer
Frictional force between oil film thickness and test axis and bearing shell, it is finally special with the friction of oil film thickness and coefficient of friction qualification test axis
Property, single unit system is simple and reliable, can effectively evaluate the frictional behavior of slewing parts.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the oblique view of the friction and wear characteristic test device of one embodiment of the invention；
Fig. 2 is the explosive view of the friction and wear characteristic test device of one embodiment of the invention；
Fig. 3 is the front view of the friction and wear characteristic test device of one embodiment of the invention；
Fig. 4 is the top view of the friction and wear characteristic test device of one embodiment of the invention；
Fig. 5 is the cross-sectional view of the friction and wear characteristic test device of one embodiment of the invention；
Fig. 6 is another cross-sectional view of the friction and wear characteristic test device of one embodiment of the invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that the case where not conflicting
Under, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this
The descriptions such as upper and lower, left and right used in invention are only the mutual alignment pass relative to each component part of the present invention in attached drawing
For system.
In addition, unless otherwise defined, the technology of all technical and scientific terms used herein and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the present invention.Term " and or " used herein includes the arbitrary of one or more relevant listed items
Combination.
Referring to Figures 1 and 2, the friction and wear characteristic test device of the present embodiment includes organic frame 1, driving mechanism 2, slows down
Machine 3, reducer union 5, nut 6, outer tight loop 7, bearing 8, interior tight loop 9, test axis 10, bearing shell 11, is surveyed yielding coupling 4
One end of power bar 12, dynamometer 13, pressure foot 14, roller 15, pressing lever 16 and amesdial (not shown), test axis 10 is fixed
On the output end of driving mechanism 2, test axis 10 and rack 1 are rotatablely connected, and test one end grafting of the axis 10 far from driving mechanism 2
In bearing shell 11, under the driving of driving mechanism 2, test axis 10 can be rotated relative to bearing shell 11.
Specifically, driving mechanism 2 is motor, motor is connect through speed reducer 3 with yielding coupling 4, and yielding coupling 4 passes through
Reducer union 5 is connect with test axis 10, by the way that yielding coupling 4 is arranged, can be reduced the generation and transmitting of vibration, be reduced vibration pair
Test axis 10 influence, while by replacement reducer union 5, can the test axis 10 to different-diameter test, improve survey
The versatility that trial assembly is set.
It is provided with support base 21 in rack 1, gland 22 is provided on support base 21, support base 21 and 22 interlocking of gland are solid
It is fixed, bearing 8 is provided between support base 21 and gland 22, bearing 8 includes outer ring and inner ring, and the outer ring of bearing 8 is fixed
Between support base 21 and gland 22, test axis 10 is plugged in the inner ring of bearing 8 and the inner ring of opposite bearing 8 is fixed.To make
The movement that axis 10 must be tested is more steady, and support base 21, gland 22 and bearing 8 are provided with two pairs along the axial direction of test axis 10.
Referring to Fig. 2, Fig. 4 and Fig. 6, test axis 10 is fixed on bearing 8 by nut 6, outer tight loop 7 and interior tight loop 9
On inner ring, nut 6 and outer tight loop 7 are socketed on interior tight loop 9, and nut 6 and one end of outer tight loop 7 support, nut 6 with
The threaded one end of interior tight loop 9 cooperates, and outer tight loop 7 and the face that interior tight loop 9 offsets are set as the identical face of slope, and interior
Tight loop 9 is provided with short slot 91 along its axial direction on its inclined-plane, and short slot 91 has run through the surfaces externally and internally of interior tight loop 9, outer tight loop 7
It is plugged in the inner ring of bearing 8, test axis 10 is plugged in interior tight loop 9.By rotating nuts 6, may make outer tight loop 7,
Interior tight loop 9 is supported with the inner ring of bearing 8, the test compression of axis 10 respectively, and the inner ring for testing the opposite bearing 8 of axis 10 thus can be made solid
It is fixed, similarly, by reversely rotating nut 6, may make outer tight loop 7, interior tight loop 9 respectively with the inner ring of bearing 8, test axis 10
Disengaging supports, and thus can make to test the inner ring that axis 10 is detached from bearing 8, can carry out the installation and replacement of test axis 10 at this time.
By setting nut 6, outer tight loop 7 and interior tight loop 9, it can quickly and easily realize that the installation of test axis 10 is fixed
And replacement, while the versatility of test device can be improved, meet the testing requirement of the test axis 10 of different-diameter.
Referring to Fig. 2, Fig. 3 and Fig. 5, test axis 10 is socketed with bearing shell 11 far from one end of driving mechanism 2, tests axis 10 and axis
Watt 11 clearance fits, bearing shell 11 are fixedly connected with dynamometer link 12, and in the present embodiment, one end of dynamometer link 12 passes through sleeve and is socketed
Be fixed on bearing shell 11, fixed form can be used interference fit or using key connection, the one end of dynamometer link 12 far from bearing shell 11 with
Dynamometer 13 supports, and dynamometer 13 uses the instrument of can detect pressure.
To load certain load to test axis 10 and bearing shell 11, the outside of bearing shell 11 is also socketed with pressure foot 14 indirectly,
One end of pressing lever 16 is supported with pressure foot 14, and pressing lever 16 is provided with objective table 31 far from one end of pressure foot 14, is added
Pressure lever 16 supports position in the middle with rack 1, can be passed through with lever principle by increasing counterweight on objective table 31
Pressure foot 14 pressurizes to bearing shell 11.
Frictional force between pressure foot 14 and bearing shell 11 is minimum, prevents the friction effects from testing 10 suface friction of axis
The test of energy, is additionally provided with roller 15 between pressure foot 14 and bearing shell 11.
To make pressing lever 16 apply the radial power of pressure foot 14, one end of pressing lever 16 always to pressure foot 14
It is provided with the first V-arrangement protrusion 33, the side of pressure foot 14 towards pressing lever 16 is provided with the first v-depression 41, and the first V-arrangement is convex
It plays 33 to be plugged in the first v-depression 41, and the tip of the first V-arrangement protrusion 33 and the top of the first v-depression 41 support, first
V-arrangement protrusion 33 can be swung by a small margin with respect to the first v-depression 41；Similarly, pressing lever 16 and the position that supports of rack 1 can be used
Identical structure, the side of pressing lever 16 towards rack 1 are provided with the second V-arrangement protrusion 32, and the top of the support 23 in rack 1 is set
It is equipped with the second v-depression.
It is in the sliding mode of a lubrication to make to test axis 10 and bearing shell 11, is additionally provided with fuel feed hole on bearing shell 11.
For the oil film thickness of testing experiment axis 10 and 11 lubricating status of bearing shell, the upper end of bearing shell 11 is additionally provided with amesdial,
The test lead spacing of amesdial supports on bearing shell 11 (test lead of amesdial and the sleeve of 12 one end of dynamometer link directly support),
And the change in displacement of 11 vertical direction of bearing shell can be tested.
When specific test, first test axis 10 can be plugged in bearing shell 11, and test axis 10 and the inner ring of bearing 8 are consolidated
Fixed, the output end of test axis 10 one end and driving mechanism 2 far from bearing shell 11 is fixed；Later, increase counterweight on objective table 31,
Pressure is applied to bearing shell 11 by pressure foot 14, amesdial is returned to zero, and support the test lead of amesdial with 11 spacing of bearing shell；
Then, lubricating oil is added by the oil filler point on bearing shell 11, to test axis 10 with respect to bearing shell 11 with certain by driving mechanism 2
Rotational speed records the reading of amesdial and dynamometer, and the ink thickness between test axis and bearing shell and examination is finally calculated
Test the coefficient of friction of axis and bearing shell.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of friction and wear characteristic test device, which is characterized in that including organic frame, driving mechanism, test axis, bearing shell, add
Wedge, dynamometer link, dynamometer and amesdial, the test axis are connect with the gantry rotation, and one end of the test axis is fixed
On the output end of the driving mechanism, the test axis is socketed with the bearing shell far from one end of the driving mechanism, described
Test axis can rotate under the driving of the driving mechanism relative to the bearing shell, and one end of the dynamometer link is fixed with the bearing shell
Connection, the dynamometer link are provided with the dynamometer far from one end of the bearing shell, and the pressure foot is socketed in the bearing shell
Outside, and pressure can be applied to the bearing shell, the test lead of the amesdial supports on the bearing shell.
2. friction and wear characteristic test device according to claim 1, which is characterized in that be provided with oil inlet on the bearing shell
Hole can add lubricating oil between test axis and the bearing shell by the fuel feed hole.
3. friction and wear characteristic test device according to claim 1, which is characterized in that it further include having pressing lever, institute
The one end for stating pressing lever is supported with the pressure foot far from the side of the bearing shell, and the pressing lever is far from the pressure foot
One end be provided with objective table, the pressing lever is supported in medium position and the rack.
4. friction and wear characteristic test device according to claim 3, which is characterized in that the pressure foot adds towards described
The side of pressure lever is provided with the first v-depression, and it is convex that one end that the pressing lever supports the pressure foot is provided with the first V-arrangement
It rises, the first V-arrangement protrusion grafting supports in first v-depression.
5. friction and wear characteristic test device according to claim 1, which is characterized in that the pressure foot and the bearing shell
Between be additionally provided with roller, the axis parallel in the axle center of the roller and the bearing shell.
6. friction and wear characteristic test device according to claim 1, which is characterized in that it further include having bearing, the axis
Holding includes outer ring and inner ring, and the outer ring is fixed in the rack, and the test axis is plugged in the inner ring simultaneously opposite
The inner ring is removably secured.
7. friction and wear characteristic test device according to claim 6, which is characterized in that further include having outer tight loop, interior
Tight loop and nut, the test axis are plugged in the interior tight loop, and the nut and outer tight loop are successively socketed in described
On interior tight loop, the outer tight loop is plugged in the inner ring, the face setting that the outer tight loop and interior tight loop offset
For the identical inclined-plane of slope, the nut is threadedly engaged with interior tight loop, when the nut is rotated relative to the interior tight loop,
The outer tight loop, interior tight loop can be supported with the inner ring, test axis extruding respectively, so that the test axis is relatively described interior
Circle is fixed or the outer tight loop, interior tight loop are supported with the inner ring, test axis disengaging respectively, so that the test axis
It is detached from the inner ring.
8. friction and wear characteristic test device according to claim 1, which is characterized in that the output end of the driving mechanism
It is fixedly connected by yielding coupling with the test axis.
9. a kind of friction and wear characteristic test method, which is characterized in that it include following steps,
S10 is plugged to axis is tested in bearing shell, and makes to test axis and bush gap cooperates；
S20 applies pressure to bearing shell and test axis by pressure foot；
S30 returns to zero amesdial, and supports the test lead of amesdial with bearing shell；
S40 adds lubricating oil between test axis and bearing shell；
S50 to test axis with respect to bearing shell to record the reading of amesdial and dynamometer with certain rotational speed by driving mechanism.
S60 is calculated the ink thickness between test axis and bearing shell and tests the coefficient of friction of axis and bearing shell.
10. friction and wear characteristic test method according to claim 9, which is characterized in that in step S60, according to survey
The frictional force F between test axis and bearing shell is calculated by the balance of dynamometer link, in conjunction with pressure foot in the reading of power instrument
The radial load P of application finds out the coefficient of friction f of test axis and bearing shell by formula f=F/P.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501351.5A CN109596516B (en) | 2018-12-10 | 2018-12-10 | Friction and wear characteristic testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501351.5A CN109596516B (en) | 2018-12-10 | 2018-12-10 | Friction and wear characteristic testing device and testing method thereof |
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| Publication Number | Publication Date |
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| CN109596516A true CN109596516A (en) | 2019-04-09 |
| CN109596516B CN109596516B (en) | 2024-07-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU216701U1 (en) * | 2022-09-22 | 2023-02-21 | Владимир Владимирович Скакун | Device for determining the coefficient of friction of lubricants |
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| ATA6089A (en) * | 1989-01-13 | 1993-04-15 | Franek Friedrich Dipl Ing Dr | DEVICE FOR FRICTION AND WEAR EXAMINATION OF ROTATING SYSTEMS, IN PARTICULAR BEARINGS |
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| CN106370591A (en) * | 2016-08-24 | 2017-02-01 | 上海交通大学 | Test machine for lubrication and friction and abrasion features of bearing bush |
| CN107631876A (en) * | 2017-08-08 | 2018-01-26 | 中国船舶重工集团公司第七〇九研究所 | One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform |
| CN209690143U (en) * | 2018-12-10 | 2019-11-26 | 南方科技大学 | Friction wear characteristic testing device |
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2018
- 2018-12-10 CN CN201811501351.5A patent/CN109596516B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA6089A (en) * | 1989-01-13 | 1993-04-15 | Franek Friedrich Dipl Ing Dr | DEVICE FOR FRICTION AND WEAR EXAMINATION OF ROTATING SYSTEMS, IN PARTICULAR BEARINGS |
| CN101339113A (en) * | 2008-08-19 | 2009-01-07 | 东南大学 | Machine tool main shaft axle journal shaft bushing friction performance test machine |
| CN101526463A (en) * | 2009-04-23 | 2009-09-09 | 哈尔滨工业大学 | Experimental apparatus for testing sliding friction property of friction materials |
| CN202580380U (en) * | 2012-04-12 | 2012-12-05 | 李飞宇 | Upper and lower sleeve connecting mechanism of water inlet valve |
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| RU216701U1 (en) * | 2022-09-22 | 2023-02-21 | Владимир Владимирович Скакун | Device for determining the coefficient of friction of lubricants |
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| CN109596516B (en) | 2024-07-02 |
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Application publication date: 20190409 Assignee: Shenzhen Meifei Precision Co.,Ltd. Assignor: Southern University of Science and Technology Contract record no.: X2021980002166 Denomination of invention: A test device for friction and wear characteristics and its test method License type: Exclusive License Record date: 20210326 |
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