CN106501112A - Centrifugal friction assay device - Google Patents
Centrifugal friction assay device Download PDFInfo
- Publication number
- CN106501112A CN106501112A CN201610911190.1A CN201610911190A CN106501112A CN 106501112 A CN106501112 A CN 106501112A CN 201610911190 A CN201610911190 A CN 201610911190A CN 106501112 A CN106501112 A CN 106501112A
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- China
- Prior art keywords
- centrifugal
- drive seat
- pedestal
- friction
- assay device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003556 assay Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005119 centrifugation Methods 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000013459 approach Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000006399 behavior Effects 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Abstract
The invention discloses a kind of centrifugal friction assay device, wherein, centrifugation rotating shaft is installed on centrifugation pedestal and by the Motor drive rotation in centrifugation pedestal, the outside of centrifugal turntable is annulus body, it is set in the middle part of centrifugal turntable in centrifugation rotating shaft, the rubbing contact-material simulating piece of annular is placed on the annulus body of centrifugal turntable；The first end of drive seat installing arm is installed on pressure pedestal, and drive seat is installed on the second end of drive seat installing arm, and the clutch end of drive seat bottom is sequentially connected force transducer and fixture, and fixture is placed in the top of the annular surface of rubbing contact-material simulating piece.Conventional friction experimental technique and centrifugal test technology are combined by centrifugal friction assay device of the present invention, borrow the version of " pin disk friction pair ", with the disk that centrifugal turntable replaces friction pair, the relative initial velocity of straight line is simulated by the linear velocity that simulating piece is rotated, the test for various equipment frictional behaviours provides simple and feasible technological approaches.
Description
Technical field
The present invention relates to a kind of friction test device, more particularly to one kind is provided simultaneously with simulating sliding friction environment and rolling
The centrifugal friction assay device of friction environment ability.
Background technology
The subjects of domestic existing friction test equipment are all mainly Material Field (feature are sample block, non-component), wipe
In terms of wear test is concentrated mainly on the research to material property, which passes through on frictional testing machine with reciprocating friction or rotary
The mode of friction carrys out the parameter characteristic of test material, in terms of the concrete-piles such as railway pile foundation, pile foundation of bridge pier, using simulated field
The mode of operating mode, precast concrete test specimen carry out shearing test testing friction test specimen characteristic, and existing fretting wear equipment cannot be real
The now research to structural member frictional behaviour, its equipment pressure ability are totally relatively low, it is impossible to provide high initial speed degree, big pressure, can not
Realize testpieces controlled attitude, it is impossible to checking construction part frictional behaviour.
Additionally, hang play aircraft extension fly over journey, landing when may meet with abnormal air crash, gun off the runway, head rub etc. different
Normal environment, nose-gear fractures or exception is packed up, and causes body with the friction of runway ground surface high speed until stopping, friction load extremely
Lotus has the feature such as high speed, big pressure, high speed rate of change, and not yet discovery is provided simultaneously with high speed, big pressure, at high speed at present
Rate of change, the friction test device of checking construction part frictional behaviour.The corrugation of high-speed railway wheel track is that the world does not solve
Modern tribology engineering challenge certainly, the operating mode are similar with the abnormal landing of aircraft.Meanwhile, can be used for motor-car and supply Brush Grinding
The friction abnormal environment testing equipment for damaging test and the test of high-speed train braking process simulation etc. is not yet found at present.
Content of the invention
The purpose of the present invention is that to solve the above problems and provides one kind and be provided simultaneously with high speed, big pressure, examination
Test part controlled attitude, can checking construction part frictional behaviour roll/slide type centrifugal friction assay device.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of centrifugal friction assay device, including centrifugal rotary apparatuss and pressure applying means, the centrifugal rotation
Rotary device includes being centrifuged pedestal, centrifugation rotating shaft, centrifugal turntable and rubbing contact-material simulating piece, and the centrifugation rotating shaft is installed on described
On centrifugation pedestal and by the Motor drive rotation in the centrifugation pedestal, the outside of the centrifugal turntable is annulus body, described
It is set in the middle part of centrifugal turntable in the centrifugation rotating shaft, the rubbing contact-material simulating piece of annular is placed in the centrifugation and turns
On the annulus body of disk；The pressure applying means include press pedestal, drive seat, drive seat installing arm, force transducer and use
In the fixture of clamp assay part, the first end of the drive seat installing arm is installed on the pressure pedestal, the drive seat peace
The second end loaded on the drive seat installing arm, the clutch end of the drive seat bottom be sequentially connected the force transducer and
The fixture, the fixture are placed in the top of the annular surface of the rubbing contact-material simulating piece.
For the ease of quick and be stably installed rubbing contact-material simulating piece, the annulus body of the centrifugal turntable is provided with
The ring groove of upper opening, the rubbing contact-material simulating piece are placed in the ring groove, the rubbing contact-material simulation
Upper surface of the upper surface of part higher than the ring groove.
In order to ensure centrifugal turntable smoothly can rotate and reduce centrifugal turntable annulus body pressurized cause centrifugation turn
The impact that axle is inclined, the centrifugal friction assay device also include base, and the centrifugation pedestal is placed in the base, described
The supporting track of annular is installed on base, the annulus body of the centrifugal turntable is placed on the supporting track, described from
The annulus body of heart rotating disk forms rolling friction relative to the supporting track.Laboratory, the friction normal pressure of testpieces is to rubbing
The annulus body for wiping facestock material simulating piece and centrifugal turntable adds certain tilting moment, increases supporting track and rolling friction side
After formula, it is achieved that the resistance to tipping moment effect of the annulus body of centrifugal turntable.
Specifically, multiple gripper shoes are uniformly installed circumferentially on the annulus body of the centrifugal turntable, the gripper shoe
Both sides are separately installed with pulley, and the race of the pulley of the gripper shoe both sides is respectively placed in side inside and outside the supporting track
Outside edge.
More specifically, the pulley of the gripper shoe both sides is respectively two.
Preferably, be provided with drive seat hydraulic cylinder in the drive seat, the vertical piston bar of the drive seat hydraulic cylinder with
The force transducer connection.Apply to carry out very big pressure-loaded during the annulus body high-speed cruising of centrifugal turntable, can cause to rush
" destruction " is hit, by the shock resistance of equipment can be realized using the hydraulic cylinder with certain elastic effect as power charger
Effect.
Further, in order to increase the vertical operating range of fixture, the drive seat and the second of the drive seat installing arm
End is fixedly connected, and is provided with pedestal hydraulic cylinder, the vertical piston bar of the pedestal hydraulic cylinder and the driving in the pressure pedestal
The first end connection of seat installing arm.
The beneficial effects of the present invention is：
Conventional friction experimental technique and centrifugal test technology are combined by centrifugal friction assay device of the present invention, are borrowed
With the version of " pin disk friction pair ", with the disk that centrifugal turntable replaces friction pair, rubbing on the annulus body of centrifugal turntable
Wipe facestock material simulating piece and simulate real rubbing surface operating mode, the relative initial velocity of straight line is simulated by the linear velocity that simulating piece is rotated,
For the frictional behaviour of large-sized structural parts, various material pieces, brush, pile foundation, motor-car track etc. test provide simple and feasible
Technological approaches, provide research technique for hanging the safety evaluation for playing the landing extremely of the aircraft such as aircraft.
Description of the drawings
Fig. 1 is the assembling dimensional structure diagram of centrifugal friction assay device of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, centrifugal friction assay device of the present invention includes that centrifugal rotary apparatuss and pressure apply dress
Put, the centrifugal rotary apparatuss include base 11, centrifugation pedestal 12, centrifugation rotating shaft 15, centrifugal turntable 17 and rubbing contact-material
Simulating piece 19, centrifugation pedestal 12 are placed in base 11, and centrifugation rotating shaft 15 is installed on centrifugation pedestal 12 and by centrifugation pedestal 12
Motor (not shown) drive rotation, the outside of centrifugal turntable 17 is annulus body, the middle part of centrifugal turntable 17 be set in from
In heart rotating shaft 15, the annulus body of centrifugal turntable 17 is provided with the ring groove 18 of upper opening, the rubbing contact-material of annular
Simulating piece is placed in ring groove 18, the upper surface of the upper surface of rubbing contact-material simulating piece 19 higher than ring groove 18, base
The supporting track 14 of annular is installed on 11, on the annulus body of centrifugal turntable 17, multiple gripper shoes is uniformly installed circumferentially
16, the both sides of gripper shoe 16 are separately installed with two pulleys 13, and the race of the pulley of 16 both sides of gripper shoe is respectively placed in supporting rail
Inside and outside road 14 outside edge, the annulus body of centrifugal turntable 17 forms rolling relative to supporting track 14 by pulley 13 and rubs
Wipe；The pressure applying means include pressure pedestal 21, drive seat 23, drive seat installing arm 22, force transducer 24 and are used for pressing from both sides
The fixture 25 of testpieces is held, in pressure pedestal 21, pedestal hydraulic cylinder (do not show in figure, but should be readily appreciated that), the pedestal hydraulic pressure is provided with
The vertical piston bar of cylinder is connected with the first end of drive seat installing arm 22, and drive seat 23 is solid with the second end of drive seat installing arm 22
Fixed connect, be provided with drive seat hydraulic cylinder (do not show in figure, but should be readily appreciated that) in drive seat 23, the drive seat hydraulic cylinder vertical
Piston rod is stretched out from the bottom of drive seat 23 and is connected with force transducer 24 and fixture 25 successively, and fixture 25 is placed in rubbing contact-material mould
Intend the top of the annular surface of part 19.
As shown in figure 1, before test, according to real working condition Design and Machining rubbing contact-material simulating piece 19 (such as concrete), right
Test in sliding friction test and rolling friction, then need to calculate the normal pressure load born by testpieces 26, for aircraft
Abnormal the simulation test of process (time, distance), need to calculate initial velocity and the normal pressure load of testpieces 26.
During test, testpieces 26 is arranged in drive seat 23 by test fixture 25, pressure is passed through according to test requirements document
The position of bringing device Adjustment Tests part 26, calculates the rotating speed of the annulus body of centrifugal turntable 17 and just tests according to experimental condition
Pressure loading, is detected to pressure loading using force transducer 24, arranges equipment control parameter, implements test.
In conjunction with Fig. 1, specifically, can be tested as follows using centrifugal friction assay device of the present invention：
The simulation of sliding friction process：Apply positive friction pressure to testpieces 26 using drive seat 23, testpieces 26 is " quiet
Only ", in the way of the rubbing surface of rubbing contact-material simulating piece 19 is rotated simulation test piece 26 true glide friction duty.
The simulation of rolling friction process：Roller is arranged on fixture 25 as testpieces 26, using 23 pairs of examinations of drive seat
Test part 26 and apply positive friction pressure, roller original place rolls, simulate in the way of the rubbing surface of rubbing contact-material simulating piece 19 is rotated
The true rolling friction operating mode of roller.
The simulation of aircraft exception landing mission (time, distance)：Based on the equal principle of energy, centrifugal turntable 17 is designed
Annulus body initial velocity under rotational kinetic energy and the body and aircraft under actual condition overall just kinetic energy equal, energy is complete
Portion is consumed by frictional force, and centrifugal turntable 17 freely stops.
The realization of initial velocity：Structural member initial velocity realized by the rotation of the annulus body of centrifugal turntable 17, that is, pass through from
With respect to initial velocity, its computing formula is the linear velocity simulation straight line that the annulus body of heart rotating disk 17 is rotated：νJust=r ω, wherein, r
For the radius of the annulus body of centrifugal turntable 17, the rotating speed of the annulus body of ω centrifugal turntables 17.
The simulation of friction normal pressure：Using the malleation force loading device for being similar to omnipotent structure testing machine, using drive seat 23
Apply positive friction pressure to testpieces 26, testpieces 26 constitutes " pin " of frictional testing machine, and drive seat hydraulic cylinder can achieve tens
The power output of ton, pressure are measurable and controllable, can add buffer unit.
The simulation of frictional contact surface：The friction of unlike material is simulated by the material of change rubbing contact-material simulating piece 19
Surface, such as using concrete simulation ground etc..
Above-described embodiment is presently preferred embodiments of the present invention, is not the restriction to technical solution of the present invention, as long as
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (7)
1. a kind of centrifugal friction assay device, it is characterised in that：Including centrifugal rotary apparatuss and pressure applying means, described
Centrifugal rotary apparatuss include being centrifuged pedestal, centrifugation rotating shaft, centrifugal turntable and rubbing contact-material simulating piece, the centrifugation rotating shaft peace
Loaded on the centrifugation pedestal and by the Motor drive rotation in the centrifugation pedestal, the outside of the centrifugal turntable is annulus sheet
Body, is set in the middle part of the centrifugal turntable in the centrifugation rotating shaft, and the rubbing contact-material simulating piece of annular is placed in institute
State on the annulus body of centrifugal turntable；The pressure applying means include press pedestal, drive seat, drive seat installing arm, power biography
Sensor and the fixture for clamp assay part, the first end of the drive seat installing arm are installed on the pressure pedestal, described
Drive seat is installed on the second end of the drive seat installing arm, and the clutch end of the drive seat bottom is sequentially connected the power
Sensor and the fixture, the fixture are placed in the top of the annular surface of the rubbing contact-material simulating piece.
2. centrifugal friction assay device according to claim 1, it is characterised in that：The annulus body of the centrifugal turntable
The ring groove of upper opening is provided with, the rubbing contact-material simulating piece is placed in the ring groove, the friction facestock
Upper surface of the upper surface of material simulating piece higher than the ring groove.
3. centrifugal friction assay device according to claim 1 and 2, it is characterised in that：The centrifugal friction test
Device also includes base, and the centrifugation pedestal is placed in the base, is provided with the supporting track of annular, institute on the base
The annulus body for stating centrifugal turntable is placed on the supporting track, and the annulus body of the centrifugal turntable is relative to the supporting rail
Road forms rolling friction.
4. centrifugal friction assay device according to claim 3, it is characterised in that：The annulus body of the centrifugal turntable
Upper circumference is uniformly provided with multiple gripper shoes, and the both sides of the gripper shoe are separately installed with pulley, the cunning of the gripper shoe both sides
The race of wheel is respectively placed in inside and outside the supporting track outside edge.
5. centrifugal friction assay device according to claim 4, it is characterised in that：The pulley of the gripper shoe both sides point
Wei two.
6. centrifugal friction assay device according to claim 1, it is characterised in that：Drive seat is provided with the drive seat
Hydraulic cylinder, the vertical piston bar of the drive seat hydraulic cylinder are connected with the force transducer.
7. centrifugal friction assay device according to claim 6, it is characterised in that：The drive seat and the drive seat
Second end of installing arm is fixedly connected, and is provided with pedestal hydraulic cylinder, the vertical piston of the pedestal hydraulic cylinder in the pressure pedestal
Bar is connected with the first end of the drive seat installing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911190.1A CN106501112A (en) | 2016-10-19 | 2016-10-19 | Centrifugal friction assay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911190.1A CN106501112A (en) | 2016-10-19 | 2016-10-19 | Centrifugal friction assay device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106501112A true CN106501112A (en) | 2017-03-15 |
Family
ID=58294255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911190.1A Pending CN106501112A (en) | 2016-10-19 | 2016-10-19 | Centrifugal friction assay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106501112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900977A (en) * | 2017-12-08 | 2019-06-18 | 鸿准精密模具（昆山）有限公司 | The test method in touch screen service life |
| CN116973018A (en) * | 2023-09-15 | 2023-10-31 | 中国空气动力研究与发展中心高速空气动力研究所 | Novel continuous surface shear force optical measurement method |
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2016
- 2016-10-19 CN CN201610911190.1A patent/CN106501112A/en active Pending
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|---|---|---|---|---|
| JP2012247301A (en) * | 2011-05-27 | 2012-12-13 | Toyo Tire & Rubber Co Ltd | Rubber friction/abrasion characteristic testing method and rubber friction/abrasion characteristic testing apparatus |
| CN102494993A (en) * | 2011-12-13 | 2012-06-13 | 重庆交通大学 | Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials |
| CN202735179U (en) * | 2012-04-17 | 2013-02-13 | 昆山市创新科技检测仪器有限公司 | Device used for detecting abrasion resistance of wooded floor |
| CN102809516A (en) * | 2012-07-30 | 2012-12-05 | 燕山大学 | Pneumatic variable-load friction wear testing machine and testing method for testing machine |
| CN103091190A (en) * | 2013-01-16 | 2013-05-08 | 南京理工大学 | Multi-station multidirectional-movement wear testing machine |
| CN103196013A (en) * | 2013-03-11 | 2013-07-10 | 哈尔滨工程大学 | Relative rotation-free and relative rotation speed regulation device |
| JP2016045047A (en) * | 2014-08-21 | 2016-04-04 | 住友ゴム工業株式会社 | Evaluation method for wear performance of rubber materials, and evaluation method for wear performance of tires |
| CN105928681A (en) * | 2016-06-14 | 2016-09-07 | 中国工程物理研究院总体工程研究所 | Piezoelectric ceramics-hydraulic vibration-dynamic centrifugal complex environment testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900977A (en) * | 2017-12-08 | 2019-06-18 | 鸿准精密模具（昆山）有限公司 | The test method in touch screen service life |
| CN116973018A (en) * | 2023-09-15 | 2023-10-31 | 中国空气动力研究与发展中心高速空气动力研究所 | Novel continuous surface shear force optical measurement method |
| CN116973018B (en) * | 2023-09-15 | 2023-12-05 | 中国空气动力研究与发展中心高速空气动力研究所 | Optical measurement method for continuous surface shear force |
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Application publication date: 20170315 |
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