CN102539264B - Assessing test machine for tribological properties of high polymer compound material - Google Patents

Assessing test machine for tribological properties of high polymer compound material Download PDF

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Publication number
CN102539264B
CN102539264B CN 201210022187 CN201210022187A CN102539264B CN 102539264 B CN102539264 B CN 102539264B CN 201210022187 CN201210022187 CN 201210022187 CN 201210022187 A CN201210022187 A CN 201210022187A CN 102539264 B CN102539264 B CN 102539264B
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CN
China
Prior art keywords
shaft
sample
axle
box
transmission rod
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CN 201210022187
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Chinese (zh)
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CN102539264A (en
Inventor
齐效文
范兵利
杨育林
胡占齐
高海碧
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燕山大学
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Priority to CN 201210022187 priority Critical patent/CN102539264B/en
Publication of CN102539264A publication Critical patent/CN102539264A/en
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Publication of CN102539264B publication Critical patent/CN102539264B/en

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Abstract

The invention relates to an assessing test machine for tribological properties of a high polymer compound material. The assessing test machine comprises an airtight box and is characterized in that a transmission shaft is arranged on a box wall, wherein a shaft end of the transmission shaft extending out of the box is connected with a safety shaft, a torque meter and a servo motor in turn througha coupler; a rotating angle disc is mounted on the safety shaft; one end of the transmission shaft inserted into the box is connected with a sample shaft through a universal crossing coupler; an upper sample clamp and a lower sample clamp are arranged around the sample shaft; a force transfer rod is connected with the upper sample clamp; one end of the force transfer rod extends out of the box and is connected with a heat-insulating shaft, a pressure sensor and a hydraulic cylinder; and a displacement measuring rod, which is in contact with a displacement sensor, is mounted on an extending part of the force transfer rod. The assessing test machine has the advantages that: the real working condition of the high polymer compound material is simulated and an assessing test for the tribological properties of the high polymer compound material is performed for detecting the abrasion loss and the change in frictional factor following the time of the high polymer compound material in real time.

Description

High polymer composite material tribological property evaluation experimental machine
Technical field
The present invention relates to mechanical field, particularly a kind of high polymer composite material tribological property evaluation experimental machine, it can be at different loads, different swing speed, varying environment temperature detection high polymer composite material tribological property.
Background technology
Be applied to the functional high polymer composite material of self-lubricating knuckle bearing, self lubrication bearing and self-lubricating guide-way, rely on its surperficial polymkeric substance (as teflon) and antithesis pair (metal) to form transfer membrane and realize antifriction, rely on its matrix (as phenolics, polyimide resin) and the synergy that is entrained in the superpolymer reinforcing material (as aramid fiber, glass fibre, carbon fiber) in the matrix to realize wear-resisting.
Disclosed as " slow-speed heavy-load fibrage composite self-lubricating bearing strip performance test machine " (Chinese patent ZL200810079552.0) at the experimental machine of high polymer composite material is a kind of fibrage composite self-lubricating bearing strip performance test machine that is applied to the low-speed heave-load operating mode, " high-speed light-load fibrage composite self-lubricating bearing strip performance test machine " (Chinese patent ZL200810079554.X) is disclosed to be a kind of fibrage composite self-lubricating bearing strip performance test machine that is applied to the high speed light loading operating mode, outer spheroid as the antithesis pair in the above-mentioned patent connects firmly at the rotating shaft middle part of two ends freely-supported in casing, when changing the antithesis pair, need bearing, rotating shaft splits out from casing one end, experimental period is wasteful, simultaneously, need in the sample preparation process fibrage compound is bonded on the anchor clamps Internal Spherical Surface, complex process, bonding quality are difficult to guarantee.Experimental machine at parts such as self-lubricating knuckle bearings, in document " development of bearing wear testing machine ", a kind of oscillating bearing experimental machine has been proposed, as disclosed among " fatigue-tesing machine for ball socket bearing of helicopter main rotor " (Chinese patent ZL200810079553.5) be a kind of fatigue tester that is applied to the helicopter main rotor system.
At present, being that the parts of friction pair are many with functional high polymer composite material uses at special operation condition, as high speed light loading, low-speed heave-load, reciprocally swinging, high temperature, low temperature etc., be difficult to realize or close to the applying working condition of parts, the evaluation of functional high polymer composite material tribological property and experimental provision research and development thereof receive increasing concern at conventional commercial test machine.
Summary of the invention
The objective of the invention is in order to satisfy exploitation and the evaluation of engineering application and high polymer composite material, improve the high polymer composite material friction and wear behavior, a kind of experimental machine for test high polymer composite material tribological property is provided, by changing working conditions such as load, swing speed, environment temperature, detect the tribological property of high polymer composite material.
The technical solution adopted for the present invention to solve the technical problems is as follows:
The present invention includes an airtight casing, on box body wall, supporting a transmission shaft by bearing pack, the shaft end that stretches out the outer end of casing of transmission shaft, link to each other with safety axle output terminal by a shaft coupling, safety axle input end links to each other with the torque gauge output shaft by a shaft coupling, the input shaft of torque gauge links to each other with the servomotor output shaft by a shaft coupling, at the safety axle angle of revolution disk is installed, have two arc grooves on the card of angle of revolution disk symmetrically, in two arc grooves, be respectively equipped with first buting iron and second buting iron, in the radial direction, the both sides of angle of revolution scale are equipped with first travel switch and second travel switch; The shaft end that stretches into an end in the casing of transmission shaft, link to each other with the sample axle by a universal cross coupler, be provided with specimen holder and following specimen holder around the sample axle, last specimen holder connects a transmission rod, transmission rod one end stretches out outside the casing, and there is bearing pack to support between transmission rod and box body wall, transmission rod stretches out the end of casing heat insulation axle is installed, heat insulation axle and a pressure transducer dynamometry end in contact, pressure transducer connects firmly on a hydraulic cylinder piston, the transmission rod extension is equipped with the displacement measurement bar, and the displacement measurement bar contacts with displacement transducer.
The axis of described transmission shaft and transmission rod is positioned at same plane, and orthogonal;
The seal sealing is arranged between described transmission shaft and the closed box body wall, the seal sealing is arranged between transmission rod and the closed box body wall;
In described casing, be provided with high temperature heater (HTH), cryogenic refrigerator and environmental cabinet temperature sensor.
The invention has the beneficial effects as follows: the present invention can simulate the real working condition condition of high polymer composite material, comprises load, swing speed, temperature etc.; High polymer composite material tribological property evaluation experimental can be carried out, wear extent, the friction factor variation in time of high polymer composite material can be detected in real time.It is simple to have the sample preparation simultaneously, is easy to standardization, easy accessibility, conventional efficient advantages of higher.
Description of drawings
Fig. 1 is the structural representation of high polymer composite material tribological property evaluation experimental machine;
Fig. 2 is that A-A of Fig. 1 is to view;
Fig. 3 is assay maps.
In the drawings: 1. servomotor, 2. first shaft coupling, 3. torque gauge, 4. second shaft coupling, 5. angle of revolution disk, 6. first travel switch, 7. the 3rd shaft coupling, 8. airtight casing, 9. transmission shaft, 10. first seal, 11. first box body holes, 12. clutch shaft bearing groups, 13. universal coupling with spider, 14. safety axles, 15. transmission rods, 16. last specimen holder, sample on 17., 18. sample axles, 19. following specimen holder, 20. supporting seats, 21. times samples, 22. following specimen temperature sensor, specimen temperature sensor on 23., 24. second seals, 25. second bearing pack, 26. second box body holes, 27. heat insulation axles, 28. displacement transducer, 29. pressure transducer, 30. loading hydraulic cylinders, 31. high temperature heater (HTH)s, 32. cryogenic refrigerator, 33. the environmental cabinet temperature sensor, 34. first buting iron, 35. displacement measurement bars, 36. second buting iron, 37. second travel switches.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 are embodiment disclosed by the invention, have two holes at airtight casing 8: first box body hole 11 and second box body hole 26.First box body hole 11 and second box body hole, 26 axis are positioned at a plane, and orthogonal.First box body hole 11 is supporting transmission shaft 9 by clutch shaft bearing group 12, transmission shaft 9 one ends reach airtight casing 8 outsides, end at the external part of transmission shaft 9 links to each other with safety axle 14 output terminals by the 3rd shaft coupling 7, safety axle 14 input ends link to each other with the output shaft of torque gauge 3 by second shaft coupling 4, and the input shaft of torque gauge 3 links to each other with servomotor 1 output shaft by first shaft coupling 2.Angle of revolution disk 5 is installed and is connected firmly at safety axle 14 output terminals, on the card of angle of revolution disk, have two arc grooves symmetrically, first buting iron 34 and second buting iron 36 are separately fixed in two deep-slotted chip breakers of angle of revolution disk 5, in the radial direction, first travel switch 6 and second travel switch 37 are installed in the both sides of angle of revolution disk 5.Seal with first seal 10 between first box body hole 11 of transmission shaft 9 and airtight casing 8.Transmission shaft 9 one ends stretch in the airtight casing 8, shaft end at the inserting end of transmission shaft 9 connects firmly universal coupling with spider 13 input ends, between universal coupling with spider 13 output terminals and the sample axle 18 for removably connecting, after removably connecting here refers to that two connected pieces connect together, interfix between the two, can not produce any relative motion, two connected pieces can be separated when needed.What match with sample axle 18 is to go up sample 17 and following sample 21, last sample 17 and following sample 21 materials, size and manufacturing process are identical, both top and bottom all are the interior circular arc concentric with sample axle 18, internal material is the fibrage compound substance, exterior material is stainless steel (also can select other metal material), and the fibrage compound substance is with the resin bonding inwall of material externally.Middle part, the side machining hole of last sample 17 and following sample 21 is installed specimen temperature sensor 23 and following specimen temperature sensor 22 respectively.Last sample 17 and following sample 21 are fixed on respectively in the arc groove of specimen holder 16 and following specimen holder 19.Following specimen holder 19 is fixed on the supporting seat 20, and supporting seat 20 is fixed on the casing diapire.For removably connecting, transmission rod 15 stretches out airtight casing 8 tops by second bearing pack, 25 radial supports by second box body hole 26 between last specimen holder 16 and the transmission rod 15, and transmission rod 15 seals with second box body hole, 26 usefulness, second seal 24 of airtight casing 8.The lower shaft end of transmission rod 15 external parts and heat insulation axle 27 connects firmly, last axle head and the pressure transducer 29 dynamometry end in contact of heat insulation axle 27, and pressure transducer 29 connects firmly with loading hydraulic cylinder 30 pistons.Connect firmly displacement measurement bar 35 on transmission rod 15 external part right sides, displacement transducer 28 measuring heads contact with displacement measurement bar 35.In airtight casing 8, high temperature heater (HTH) 31 and cryogenic refrigerator 32 and environmental cabinet temperature sensor 33 are installed.
During loading, feed hydraulic oil for loading hydraulic cylinder 30, loading hydraulic cylinder 30 pistons by pressure transducer 29, heat insulation axle 27, transmission rod 15, go up specimen holder 16, go up sample 17, sample axle 18, sample 21, specimen holder 19, supporting seat 20 down down, load passes to closed box 8 diapires the most at last, thereby realized last sample 17 and sample axle 18, and the loading between sample axle 18 and the following sample 21.
Servomotor 1 starts, by first shaft coupling 2, torque gauge 3, second shaft coupling 4, the angle of revolution disk 5 that drives safety axle 14 and be fixed on safety axle 14 rotates counterclockwise, when first buting iron 34 on turning to angle of revolution disk 5 contacts with first travel switch 6, make servomotor 1 reversed turning by control system, namely clockwise rotate, when servomotor 1 passes through first shaft coupling 2, torque gauge 3, second shaft coupling 4, the angle of revolution disk 5 that drives safety axle 14 and be fixed on safety axle 14 clockwise rotates, when second buting iron 36 on turning to angle of revolution scale 5 contacts with travel switch 37, by control system servomotor 1 is rotated counterclockwise, said herein all is from servomotor 1 one side direction angle of revolution disk 5 directions clockwise and counterclockwise.Adjust the servomotor rotating speed by control system and can realize adjusting sample axle 18 hunting frequencies, can realize sample axle 18 hunting frequencies and pendulum angle adjustment by first buting iron 34 of adjustment angle of revolution disk 5 and the position of second buting iron 36, realize the mode of motion simulation that the polymer composites tribological property is estimated.
When last sample 17 produces wearing and tearing with sample axle 18, last sample 17, last specimen holder 16, transmission rod 15 can produce downward displacement, pass to displacement transducer 28 by displacement measurement bar 35, when producing wearing and tearing between sample axle 18 and the following sample 21, sample axle 18, last sample 17, last specimen holder 16, transmission rod 15 can produce downward displacement, pass to displacement transducer 28 by displacement measurement bar 35, namely the displacement transducer 28 wear extent data that detect are that last sample 17 produces the wear extent sum with sample axle 18, sample axle 18 with following sample 21.When generation wearing and tearing between sample axle 18 and the following sample 21 cause sample axle 18 to produce downward displacement, owing to be connected with universal coupling with spider 13 between sample axle 18 and the revolving shaft 9, sample axle 18 is the maintenance level under last sample 17 and following sample 21 clampings retrain.
Before the experiment, set the friction torque ultimate value by control system, when last sample 17 or sample 21 generation heavy wears down, when friction torque surpassed the friction torque ultimate value of setting, experimental machine was out of service.When taking place moment of torsion moment increase above torque gauge detection range between last sample 17 and the sample axle 18 or between sample axle 18 and the following sample 21 suddenly, the safety axle will be cut off, and can play the torque gauge effect of protecting like this.
When needs simulated environment temperature, during high temperature, by control system target setting temperature, operation high temperature heater (HTH) 31, when environmental cabinet temperature sensor 33 testing environment temperature arrived target temperature, high temperature heater (HTH) 31 was out of service.During low temperature, by control device target setting temperature, operation cryogenic refrigerator 32, when environmental cabinet temperature sensor 33 testing environment temperature arrived target temperature, cryogenic refrigerator 32 was out of service.

Claims (4)

1. high polymer composite material tribological property evaluation experimental machine, comprise an airtight casing, it is characterized in that: on box body wall, supporting a transmission shaft by bearing pack, the shaft end that stretches out the outer end of casing of transmission shaft, link to each other with safety axle output terminal by a shaft coupling, safety axle input end links to each other with the torque gauge output shaft by a shaft coupling, the input shaft of torque gauge links to each other with the servomotor output shaft by a shaft coupling, at the safety axle angle of revolution disk is installed, have two arc grooves on the card of angle of revolution disk symmetrically, in two arc grooves, be respectively equipped with first buting iron and second buting iron, in the radial direction, the both sides of angle of revolution scale are equipped with first travel switch and second travel switch; The shaft end that stretches into an end in the casing of transmission shaft, link to each other with the sample axle by a universal cross coupler, be provided with specimen holder and following specimen holder around the sample axle, last specimen holder connects a transmission rod, transmission rod one end stretches out outside the casing, and there is bearing pack to support between transmission rod and box body wall, transmission rod stretches out the end of casing heat insulation axle is installed, heat insulation axle and a pressure transducer dynamometry end in contact, pressure transducer connects firmly on a hydraulic cylinder piston, the transmission rod extension is equipped with the displacement measurement bar, and the displacement measurement bar contacts with displacement transducer.
2. high polymer composite material tribological property evaluation experimental machine according to claim 1, it is characterized in that: the axis of described transmission shaft and transmission rod is positioned at same plane, and orthogonal.
3. high polymer composite material tribological property evaluation experimental machine according to claim 1 is characterized in that: the seal sealing is arranged between described transmission shaft and the closed box body wall, the seal sealing is arranged between transmission rod and the closed box body wall.
4. high polymer composite material tribological property evaluation experimental machine according to claim 1 is characterized in that: be provided with high temperature heater (HTH), cryogenic refrigerator and environmental cabinet temperature sensor in described casing.
CN 201210022187 2012-02-01 2012-02-01 Assessing test machine for tribological properties of high polymer compound material CN102539264B (en)

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RU2526223C2 (en) * 2012-12-17 2014-08-20 Федеральное государственное бюджетное учреждение науки Институт проблем нефти и газа Сибирского отделения Российской академии наук Method to assess wear resistance of polymer composite materials
CN103076178A (en) * 2013-01-18 2013-05-01 燕山大学 Experimental machine for evaluating impact-loading type tribological performance of joint bearing
CN103267697A (en) * 2013-05-10 2013-08-28 哈尔滨飞机工业集团有限责任公司 Apparatus used for bearing wearing test
CN103837468B (en) * 2014-02-27 2016-04-20 东北大学 A kind of test method detecting end friction effect and antifriction material performance
CN104568632B (en) * 2015-01-22 2017-04-19 清华大学 Device for testing abrasion of fibre to hard material
CN105891028B (en) * 2016-06-01 2018-09-25 上海电缆研究所有限公司 Metal wire rod vibration fatigue machine and metal wire rod vibration fatigue test method
DE102016115191B4 (en) * 2016-08-16 2018-05-03 Werner Stehr Friction testing apparatus
CN106568708B (en) * 2016-11-04 2019-05-31 中国石油天然气股份有限公司 A kind of curable proppant friction test device of coating class
CN107167394A (en) * 2017-05-27 2017-09-15 上海海事大学 A kind of polar region ship plate ultralow temperature frictional experiment system
CN107389346B (en) * 2017-07-27 2019-04-09 燕山大学 Rub pre-filled method for Surface Texture self-lubricating material
CN109001065B (en) * 2018-05-18 2020-10-09 杭州电子科技大学 Testing device and testing method for vibration noise and frictional wear performance of texture friction pair
CN110095286B (en) * 2019-04-18 2021-01-05 杭州电子科技大学 Testing device for friction pair of ball-and-socket joint of robot

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