CN107179252A - One kind becomes the typical friction pair skimming wear experimental machine of gravity orientation and test method - Google Patents
One kind becomes the typical friction pair skimming wear experimental machine of gravity orientation and test method Download PDFInfo
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- CN107179252A CN107179252A CN201710221046.XA CN201710221046A CN107179252A CN 107179252 A CN107179252 A CN 107179252A CN 201710221046 A CN201710221046 A CN 201710221046A CN 107179252 A CN107179252 A CN 107179252A
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- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- 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
- G01N3/02—Details
- G01N3/04—Chucks
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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Abstract
Become the typical friction pair skimming wear experimental machine of gravity orientation and test method the invention discloses one kind, wherein, one kind becomes the typical friction pair skimming wear experimental machine of gravity orientation, include the friction force sensor of support, vacuum tank, index dial, load maintainer, specimen holder, test sample clamping mechanism and frictional force size during for detecting fixed sample and the friction of movable sample, vacuum tank is installed on support by index dial, and specimen holder and test sample clamping mechanism are installed in vacuum tank.The present invention can accurately measure the change of the different lower typical case's friction friction forces of gravity orientation in vacuum environment, and influence of the analysis gravitational effect to abrasion can also measure the influence that alternate load is worn and torn to typical friction pair.
Description
Technical field
The present invention relates to a kind of gravity tribological field, and in particular to one kind becomes the typical friction pair skimming wear of gravity orientation
Experimental machine and test method.
Background technology
With the development of China's aerospace industry, various space mechanisms are more and more applied to space and put into practice, space mechanism
Mainly influenceed for a long time by environmental factors such as microgravity, high vacuum, alternating temperature-changing, radiation during one's term of military service in space.For Gao Zhen
The research of the environmental factors such as sky, alternating temperature-changing, radiation is more extensive, and takes effective safeguard procedures.Gravity is made
It is ubiquitous on the ground for a kind of body force, and have clear and definite direction action.The disappearance of gravitational effect, Shi Bizao in space
Changed into mechanical environment residing for the machine of space.
The influence that gravitational effect is worn and torn to space mechanism and movable part is studied, the abrasion machine of mechanism under space environment is probed into
Reason, to solving the problems, such as all kinds of permanently effective military services of Complex Spacecraft system, the technical and economic performance for improving all kinds of space mechanisms refers to
Mark, and engineer applied, technical perfection and theoretical developments of China's aerospace industry in space mechanism field have it is highly important
Meaning.
Current microgravity environment ground simulation experiment method mainly has tower method, parabolic flight method, water float glass process, hang spring counterweight
Method, air floating platform etc..Although fall Ta Fa and aircraft parabolic flight can more real stimulated microgravity, its time is short,
Space is small, limited to mechanism research usage range.Simulated microgravity ring when though water float glass process, hang spring counterweight method, air floating platform can be long
Border, but authenticity is poor.Because the existing simulated test means such as tank, suspention, air supporting do not simply fail to solve complicated track
Three-dimensional motion ground simulation problem, and because rope is flexible, in equipment resistance, the movement inertia of big quality mechanism such as friction etc. because
Element so that its validity is unsatisfactory.
The content of the invention
For technical problem present in prior art, the purpose of the present invention is：A kind of change gravity orientation typical case is provided to rub
Wipe secondary skimming wear experimental machine.
Another object of the present invention is：A kind of gravity that becomes is provided and is orientated typical friction pair sliding wear testing method.
The purpose of the present invention is achieved through the following technical solutions：One kind becomes the typical friction pair skimming wear experiment of gravity orientation
Machine, including support, vacuum tank, index dial, load maintainer, specimen holder, test sample clamping mechanism and for detecting fixed sample
The friction force sensor of frictional force size when being rubbed with movable sample, vacuum tank is installed on support by index dial, sample
Fixture and test sample clamping mechanism are installed in vacuum tank；
Specimen holder includes clamping bracket, chuck, loading axis and the upper grip that sample is fixed for clamping, and chuck is fixed
In on clamping bracket, loading axis is connected in chuck, and upper grip is connected to loading axis bottom, and load maintainer is connected with loading axis；
The sample installing plate and driving sample installing plate that test sample clamping mechanism includes being used for fixed movable sample are relatively solid
Determine sample and move back and forth the sample drive device for making to fix sample and movable sample generation friction.
It is preferred that, the sample drive device includes guide rail, sliding block and drive mechanism, and sample installing plate is fixed with sliding block
Connection, sliding block is engaged with guide rail, and drive mechanism is connected with sample installing plate.
It is preferred that, the drive mechanism includes motor, gear and rack, and rack is installed on sample installing plate, gear
It is fixed on the output shaft of motor, wheel and rack is meshed.
It is preferred that, the clamping bracket includes movable installation board, connection sliding block and slide rail, and movable installation board is with being connected cunning
Block is fixedly connected, and connection sliding block is connected with slide rail, and the induction end of friction force sensor is in contact with movable installation board.
It is preferred that, the load maintainer includes electric cylinder, thrust bearing, thrust bearing mounting seat, spring, spring and installed
Seat, pressure sensor and force block, electric cylinder are connected with thrust bearing mounting seat, and thrust bearing is installed on thrust bearing installation
In seat, both ends of the spring is connected with thrust bearing mounting seat and spring mounting seat respectively, and pressure sensor is installed on spring mounting seat
On, force block is in contact with pressure sensor, and force block is connected with loading axis.
It is preferred that, the face of the force block and pressure sensor contacts is sphere.
It is preferred that, the load maintainer also includes loading support frame, and loading support frame includes support column and supporting plate, branch
Threaded connection post is provided with dagger, support column is fixed in vacuum tank, and supporting plate is connected through a screw thread post and is connected to support column
Top, load maintainer is arranged in supporting plate.
It is preferred that, the friction force sensor is two, and two friction force sensors are axially disposed within activity along index dial
Installing plate both sides.
One kind becomes the typical friction pair sliding wear testing method of gravity orientation, comprises the following steps：
Vacuum tank is vacuumized, and adjustment index dial makes vacuum tank be in level or required angle of inclination, and load maintainer is to examination
Sample fixture applies pressure；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, in fixed sample and movable sample friction process, frictional force sensing
Frictional force size when the fixed sample of device detection and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
Load new fixed sample to be measured and movable sample to be measured, vacuum tank is vacuumized, adjustment index dial makes at vacuum tank
In another required angle of inclination, load maintainer applies identical loading force to specimen holder；
Rubbed by said process；
After in setting time, stop the friction of fixed sample to be measured and movable sample to be measured, by fixed sample and activity
Sample dismounting is removed；
When needing vacuum tank to be tested under more angles of inclination again, new fixation sample and activity to be measured will be entered
Sample and adjust index dial make vacuum tank be in required angle of inclination, then again by said process respectively press required vacuum tank
Angle of inclination is tested；
By the abrasion condition progress pair of fixation sample and movable sample obtained by above-mentioned different vacuum tank angle of inclination tests
Than so as to obtain influence of the gravity to abrasion condition under different angles；Friction force sensor is surveyed at different vacuum tank angles of inclination
The frictional force detected under examination is contrasted, so as to obtain influence of the different gravity to frictional force.
One kind becomes the typical friction pair sliding wear testing method of gravity orientation, comprises the following steps：
Vacuum tank is vacuumized, and load maintainer applies alternating pressure to specimen holder；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, during fixed sample and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
When needing tested under multiple differing tilt angles, new fixed sample to be measured is respectively charged into and to be measured
Movable sample and adjust index dial make vacuum tank be in required angle of inclination, then, rubbed by said process；
Load new fixation sample and movable sample to be measured, do not change the angle of vacuum tank, vacuum tank is vacuumized, load machine
Structure applies a constant pressure to specimen holder；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, during fixed sample and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
Fixation sample and movable sample obtained by above-mentioned test twice is contrasted, so as to obtain applying alternating pressure pair
The influence of abrasion.
The present invention has the following advantages and effect relative to prior art：
1st, the present invention can explore the influence that gravitational effect is worn and torn to space mechanism, and the present invention replaces micro- with motor behavior simulation
Gravity environment is simulated, and using gravity environment problem as core, covers gravity, vacuum and alternate load three and spacecraft motion
The directly related factor of mechanism, therefore, the present invention can accurately measure the different lower typical friction pairs of gravity orientation in vacuum environment and rub
The change of power is wiped, influence of the analysis gravitational effect to abrasion can also measure the influence that alternate load is worn and torn to typical friction pair.
2nd, fixation sample of the invention and movable sample to be measured are by the way of sliding friction, so the present invention can be simulated a little
Face, line face, the wear test of the typical friction pair in three kinds of face face, and fixture highly versatile.
3rd, friction force sensor of the invention is axially disposed within the one or both sides of movable installation board along index dial, can make to rub
The measurement direction for wiping force snesor is vertical with gravity direction all the time so that movable installation board will not be because of deadweight after vacuum tank inclination
And be pressed on friction force sensor, it is to avoid friction force sensor is damaged by pressure or its measurement accuracy is influenceed, so as to improve frictional force
Measurement accuracy of the sensor after vacuum tank inclination.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the enlarged drawing in A portions in Fig. 1.
Fig. 4 is the enlarged drawing in B portions in Fig. 1.
Fig. 5 is to make the schematic diagram after vacuum tank inclination by adjusting index dial.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Embodiment one：
One kind becomes the typical friction pair skimming wear experimental machine of gravity orientation, including support 1, vacuum tank 2, index dial 3, loading
Mechanism 4, specimen holder 5, test sample clamping mechanism 6 and frictional force size during for detecting fixed sample and the friction of movable sample
Friction force sensor 7, vacuum tank is installed on support by index dial, and specimen holder and test sample clamping mechanism are installed on vacuum
In case；
Specimen holder includes clamping bracket 8, chuck 9, loading axis 10 and the upper grip 11 that sample is fixed for clamping, folder
Set is fixed on clamping bracket, and loading axis is connected in chuck, and upper grip is connected to loading axis bottom, load maintainer and loading axis
Connection；
The sample installing plate 12 and driving sample installing plate that test sample clamping mechanism includes being used for fixed movable sample are relative
Fixed sample, which is moved back and forth, to be made to fix sample and movable sample produces the sample drive device of friction.
It is preferred that, the sample drive device includes guide rail 13, sliding block 14 and drive mechanism, sample installing plate and sliding block
It is fixedly connected, sliding block is engaged with guide rail, drive mechanism is connected with sample installing plate.
It is preferred that, the drive mechanism includes motor 15, gear 16 and rack 17, and rack is installed on sample installing plate
On, gear is fixed on the output shaft of motor, and wheel and rack is meshed.
It is preferred that, the clamping bracket include movable installation board 18, connection sliding block 19 and slide rail 20, movable installation board with
Connection sliding block is fixedly connected, and connection sliding block is connected with slide rail, and the induction end of friction force sensor is in contact with movable installation board.
It is preferred that, the load maintainer includes electric cylinder 21, thrust bearing 22, thrust bearing mounting seat, spring 23, spring
Mounting seat 24, pressure sensor 26 and force block 27, electric cylinder are connected with thrust bearing mounting seat, and thrust bearing, which is installed on, to be pushed away
In power bearing mounting base, both ends of the spring is connected with thrust bearing mounting seat and spring mounting seat respectively, and pressure sensor is installed on
On spring mounting seat, force block is in contact with pressure sensor, and force block is connected with loading axis.
It is preferred that, the face of the force block and pressure sensor contacts is sphere.
It is preferred that, the load maintainer also includes loading support frame, and loading support frame includes support column 28 and supporting plate
29, threaded connection post 30 is provided with support column, support column is fixed in vacuum tank, and supporting plate is connected through a screw thread post and is connected to
Support column top, load maintainer is arranged in supporting plate.
It is preferred that, the friction force sensor is two, and two friction force sensors are axially disposed within activity along index dial
Installing plate both sides.
The course of work and operation principle of the present invention：
Vacuum tank is vacuumized, and adjustment index dial makes vacuum tank be in horizontality, and load maintainer applies to specimen holder presses
Power；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, in fixed sample and movable sample friction process, frictional force sensing
Frictional force size when the fixed sample of device detection and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
Load new fixation sample and movable sample, vacuum tank is vacuumized, and adjustment index dial makes 30 ° of vacuum tank inclination, plus
Mounted mechanism applies pressure to specimen holder；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, in fixed sample and movable sample friction process, frictional force sensing
Frictional force size when the fixed sample of device detection and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
New fixed sample to be measured and movable sample to be measured is reloaded into, vacuum tank is vacuumized, adjustment index dial makes vacuum tank
45 ° are tilted, load maintainer applies identical loading force to specimen holder；
Rubbed by said process；
After in setting time, stop the friction of fixed sample to be measured and movable sample to be measured, by fixed sample and activity
Sample dismounting is removed；
When needing vacuum tank to be in again to be tested under more angles of inclination, new fixed sample to be measured will be entered and to be measured
Movable sample and adjust index dial make vacuum tank be in required angle of inclination such as：50 °, 75 °, 85 °, 90 °, 100 °, 120 ° or
160 °, then tested respectively by required vacuum tank angle of inclination by said process again；
By the abrasion condition progress pair of fixation sample and movable sample obtained by above-mentioned different vacuum tank angle of inclination tests
Than analysis, so as to obtain influence of the different gravity to abrasion condition；
The frictional force that friction force sensor is detected under being tested at different vacuum tank angles of inclination is analyzed, so that
Obtain influence of the different gravity to frictional force.
Embodiment two
One kind becomes the typical friction pair sliding wear testing method of gravity orientation, comprises the following steps：
Vacuum tank is vacuumized, and adjustment index dial makes vacuum tank horizontal positioned or in required angle of inclination, load maintainer
Apply pressure to specimen holder；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, in fixed sample and movable sample friction process, frictional force sensing
Frictional force size when the fixed sample of device detection and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
Load new fixed sample to be measured and movable sample to be measured, vacuum tank is vacuumized, adjustment index dial makes at vacuum tank
In another required angle of inclination, load maintainer applies identical loading force to specimen holder；
Rubbed by said process；
After in setting time, stop the friction of fixed sample to be measured and movable sample to be measured, by fixed sample and activity
Sample dismounting is removed；
When needing vacuum tank to be in again to be tested under more angles of inclination, new fixed sample to be measured will be entered and to be measured
Movable sample and adjusting index dial makes vacuum tank be in required angle of inclination, then again by said process respectively by required true
Empty van angle of inclination is tested；
By the abrasion condition progress pair of fixation sample and movable sample obtained by above-mentioned different vacuum tank angle of inclination tests
Than so as to obtain influence of the different gravity to abrasion condition；
The frictional force that friction force sensor is detected under being tested at different vacuum tank angles of inclination is contrasted, so as to obtain
Influence of the different gravity to frictional force.
Embodiment three：
Vacuum tank is vacuumized, and load maintainer applies alternating pressure to specimen holder；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, during fixed sample and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
When needing tested under multiple differing tilt angles, new fixed sample to be measured is respectively charged into and to be measured
Movable sample and adjust index dial make vacuum tank be in required angle of inclination, then, rubbed by said process；
Load new fixation sample and movable sample to be measured, vacuum tank is vacuumized, load maintainer applies one to specimen holder
Individual constant pressure；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and back and forth moves
It is dynamic, so that friction is produced between fixed sample and movable sample, during fixed sample and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample are dismantled
Remove；
Fixation sample and movable sample obtained by above-mentioned test twice is contrasted, so as to obtain applying alternating pressure pair
The influence of abrasion.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. one kind becomes the typical friction pair skimming wear experimental machine of gravity orientation, it is characterised in that：Including support, vacuum tank, indexing
Disk, load maintainer, specimen holder, test sample clamping mechanism and frictional force during for detecting fixed sample and the friction of movable sample
The friction force sensor of size, vacuum tank is installed on support by index dial, and specimen holder and test sample clamping mechanism are installed on
In vacuum tank；
Specimen holder includes clamping bracket, chuck, loading axis and the upper grip that sample is fixed for clamping, and chuck is fixed on dress
Press from both sides on support, loading axis is connected in chuck, and upper grip is connected to loading axis bottom, and load maintainer is connected with loading axis；
The sample installing plate and driving sample installing plate that test sample clamping mechanism includes being used for fixed movable sample are relatively fixed examination
Sample, which is moved back and forth, to be made to fix sample and movable sample produces the sample drive device of friction.
2. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 1, it is characterised in that：The examination
Sample drive device includes guide rail, sliding block and drive mechanism, and sample installing plate is fixedly connected with a slide block, and sliding block matches with guide rail
Close, drive mechanism is connected with sample installing plate.
3. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 2, it is characterised in that：It is described to drive
Motivation structure includes motor, gear and rack, and rack is installed on sample installing plate, and gear is fixed on the output shaft of motor,
Wheel and rack is meshed.
4. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 1, it is characterised in that：The dress
Pressing from both sides support includes movable installation board, connection sliding block and slide rail, and movable installation board is fixedly connected with connection sliding block, connection sliding block and
Slide rail is connected, and the induction end of friction force sensor is in contact with movable installation board.
5. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 1, it is characterised in that：It is described to add
Mounted mechanism includes electric cylinder, thrust bearing, thrust bearing mounting seat, spring, spring mounting seat, pressure sensor and stress
Block, electric cylinder is connected with thrust bearing mounting seat, and thrust bearing is installed in thrust bearing mounting seat, and both ends of the spring is respectively with pushing away
Power bearing mounting base and spring mounting seat connection, pressure sensor are installed on spring mounting seat, force block and pressure sensor
It is in contact, force block is connected with loading axis.
6. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 5, it is characterised in that：It is described by
The face of power block and pressure sensor contacts is sphere.
7. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 1, it is characterised in that：It is described to add
Mounted mechanism also includes loading support frame, and loading support frame includes being provided with threaded connection on support column and supporting plate, support column
Post, support column is fixed in vacuum tank, and supporting plate is connected through a screw thread post and is connected to support column top, and load maintainer is arranged at branch
On fagging.
8. the typical friction pair skimming wear experimental machine of change gravity orientation according to claim 4, it is characterised in that：It is described to rub
It is two to wipe force snesor, and two friction force sensors are axially disposed within movable installation board both sides along index dial.
9. one kind becomes the typical friction pair sliding wear testing method of gravity orientation, it is characterised in that comprise the following steps：
Vacuum tank is vacuumized, and adjustment index dial makes vacuum tank be in level or required angle of inclination, and load maintainer is to specimen holder
Tool applies pressure；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and moves back and forth, from
And making to fix generation friction between sample and movable sample, in fixed sample and movable sample friction process, friction force sensor is examined
Survey frictional force size when fixed sample and movable sample friction；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample dismounting are removed；
Load new fixed sample to be measured and movable sample to be measured, vacuum tank is vacuumized, it is another that adjustment index dial is in vacuum tank
Angle of inclination needed for one, load maintainer applies identical loading force to specimen holder；
Rubbed by said process；
After in setting time, stop the friction of fixed sample to be measured and movable sample to be measured, by fixed sample and movable sample
Dismounting is removed；
When needing vacuum tank to be tested under more angles of inclination again, new fixation sample and movable sample to be measured will be entered
And adjusting index dial makes vacuum tank be in required angle of inclination, then tilted respectively by required vacuum tank by said process again
Angle is tested；
Fixation sample and the abrasion condition of movable sample obtained by above-mentioned different vacuum tank angle of inclination tests is contrasted, from
And obtain influence of the gravity to abrasion condition under different angles；Friction force sensor is examined under being tested at different vacuum tank angles of inclination
The frictional force measured is contrasted, so as to obtain influence of the different gravity to frictional force.
10. one kind becomes the typical friction pair sliding wear testing method of gravity orientation, it is characterised in that comprise the following steps：
Vacuum tank is vacuumized, and load maintainer applies alternating pressure to specimen holder；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and moves back and forth, from
And make to fix generation friction between sample and movable sample, during fixed sample rubs with movable sample；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample dismounting are removed；
When needing tested under multiple differing tilt angles, new fixed sample to be measured and activity to be measured are respectively charged into
Sample and adjust index dial make vacuum tank be in required angle of inclination, then, rubbed by said process；
Load new fixation sample and movable sample to be measured, do not change the angle of vacuum tank, vacuum tank is vacuumized, load maintainer to
Specimen holder applies a constant pressure；
Proceed by friction：Sample drive device drives sample installing plate, movable sample is relatively fixed sample and moves back and forth, from
And make to fix generation friction between sample and movable sample, during fixed sample rubs with movable sample；
After in setting time, stop the friction of fixed sample and movable sample, fixed sample and movable sample dismounting are removed；
Fixation sample and movable sample obtained by above-mentioned test twice is contrasted, so as to obtain applying alternating pressure to abrasion
Influence.
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| CN201710221046.XA CN107179252B (en) | 2017-04-06 | 2017-04-06 | A kind of typical secondary skimming wear experimental machine and the test method of rubbing of change gravity orientation |
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| CN201710221046.XA CN107179252B (en) | 2017-04-06 | 2017-04-06 | A kind of typical secondary skimming wear experimental machine and the test method of rubbing of change gravity orientation |
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| CN107179252B CN107179252B (en) | 2019-10-18 |
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| CN110686839A (en) * | 2019-09-23 | 2020-01-14 | 天津大学 | Sliding friction pair dynamic sealing performance testing equipment based on gas pressure source |
| CN110686840A (en) * | 2019-09-23 | 2020-01-14 | 天津大学 | Sliding friction pair dynamic sealing performance testing system |
| CN110686838A (en) * | 2019-09-23 | 2020-01-14 | 天津大学 | Method for evaluating dynamic sealing performance of sliding friction pair |
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