CN202049105U - High-frequency high specific pressure long-stroke and temperature controllable reciprocating friction testing device - Google Patents
High-frequency high specific pressure long-stroke and temperature controllable reciprocating friction testing device Download PDFInfo
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- CN202049105U CN202049105U CN2011200438573U CN201120043857U CN202049105U CN 202049105 U CN202049105 U CN 202049105U CN 2011200438573 U CN2011200438573 U CN 2011200438573U CN 201120043857 U CN201120043857 U CN 201120043857U CN 202049105 U CN202049105 U CN 202049105U
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Abstract
The utility model discloses a high-frequency high specific pressure long-stroke and temperature controllable reciprocating friction testing device which is characterized in that a unit to be tested comprises an upper testing part and a lower testing part which are arranged in a split type, wherein the lower testing part is supported on a ball, the upper testing part and a pressure transmission part are arranged in a reversed T shape; a matching testing part arranged between the upper testing part and the lower testing component is in surface contact with the upper testing part and the lower testing component; a reciprocating driving unit is a crank sliding block mechanism which is driven by an electric motor; a loading unit is a loading lever for multi-stage incremental loading; a friction coefficient testing unit is a force sensor taking the lower testing part as a part to be tested. With the adoption of the device, the reciprocating motion frequency can reach 40 Hz, the reciprocating motion stroke is 115 mm, the contact surface specific pressure can reach 40 Mpa, the friction coefficient and the real-time temperature of the parts can be measured, and the ultimate load of the part can be tested.
Description
Technical field
The utility model relates to a kind of friction testing arrangement, particularly relates under the higher situation of a kind of high specific pressure environment temperature the friction testing arrangement of high-frequency large stroke reciprocating.
Background technology
In engineering reality, reciprocating part is variable motion because of it, friction condition between two piece surfaces that are in contact with one another is very complicated, for the design and research of reciprocating friction abrasion test device, lot of domestic and foreign research and design personnel have obtained lot of research and have applied in the experimental study.As far back as 1989, people such as S.M.H.Benabdallaha (S.M.H.Benabdallaha.Reciprocating sliding friction and wear test apparatus.Department of MechanicalEngineering, Ecole Polytechnique de Montreal, PO Box 6079, Station ' A ', Montreal, Quebec, Canada, H3C 3A7) a kind of plane-plane contact reciprocal testing machine that slides is proposed, since the technical conditions restriction, the functional limitation that it is realized, and can not realize temperature control.1994, Yang, people (Yang such as Henry H., Henry H.Friction betweenpistons and cylinders in reciprocating pumps.Source:American Society of Mechanical Engineers.Fluids Engineering Division (Publication) FED, v 182, p 59-63,1994) rubbing wear at cylinder sleeve-piston ring has designed reciprocal testing machine, it is to be used for carrying out cylinder sleeve, piston Coupling Research, temperature control can not be realized, other tests can not be used for.1999, Xu Shuan completely waits people (Xu Shuanman, Ceng Zhaoxiang, Ma Junlin. cylinder sleeve-piston ring material Study of Friction Coefficient. diesel engine, 1999, (01), 21-24) the reciprocating type friction wear testing machine of research and design can be surveyed friction force, real time temperature that can not test block, no attemperating unit, back and forth range is 90mm.2004, (Shi Hongsheng, Guo Yan, Gao Xiaojun such as Shi Hongsheng, Wang Hui, Hu Yuanzhong. the design studies of cylinder sleeve/piston ring tribological property testing machine. lubricated and sealing, 2004, (03), 76-79) She Ji reciprocal testing machine, also at the design of the experimental study of cylinder sleeve-piston ring, its maximum frequency 10Hz, maximum load 20MPa.2009, the superfine (Yuan Mingchao of Yuan Ming; Qian Shuanqing; Liu Yijing; Wang Xiaolei. utilize surperficial texture to improve the experimental study of piston ring/cylinder sleeve frictional behaviour. machine science and technology, 2009, (12), 1630-1633+1638) She Ji reciprocal testing machine is also at cylinder sleeve-piston ring friction pair research, can not temperature control, do not see its other open parameter that realizes.2010, (Yu Jianwei such as Yu Jianwei; Among Wang; Jiao Minghua; You Tao. the reciprocating type testing machine dynamic detection system research of heavy load. lubricated and sealing, 2010, (04), and 100-102+107) She Ji reciprocal testing machine, its reciprocating frequency is 0.2～2Hz, range is 40mm; Liu Yong equality (Liu Yongping; Gong Jun; Xin Zhou; Hou Yunfeng. reciprocating type friction wear testing machine and The design of computer control system thereof. Chinese journal of scientific instrument, 2010, (08), 1750-1755) She Ji reciprocal testing machine can not thermometric, does not see that its attemperating unit and stroke realize parameter.The reciprocal testing machine of Guo Jun etc. (Application number:CN20101000765 20100119 Prioritynumber (s): CN20101000765 20100119) design is little stroke, no attemperating unit.The comprehensive design studies situation of reciprocating friction abrasion test device at present, no matter be open paper or patent, the condition of the reciprocating friction wear testing that can realize all is limited, or reciprocating stroke is smaller, reciprocating frequence is lower, or the surface of contact specific pressure is less maybe can not control temperature.
The utility model content
The utility model is for avoiding the existing weak point of above-mentioned prior art, but provide the big stroke temperature control of a kind of high-frequency high specific pressure reciprocating friction proving installation at high surface of contact specific pressure and hot conditions, realize the friction factor and the real time temperature of part are measured with it, and can record the ultimate load of part.
The utility model adopts following technical scheme for the technical solution problem:
But the characteristics of the big stroke temperature control of the utility model high-frequency high specific pressure reciprocating friction proving installation are made up of unit under test, to-and-fro movement driver element, loading unit, friction coefficient measurement unit and temperature conditioning unit;
Comprise last test block and following test block that split is provided with in the described unit under test, described test block down is supported on the ball, and described upward test block and pressure transmission part are inverse-T-shaped setting; On described between test block and the following test block, reciprocating spouse's test specimen be with described on test block be that face contacts with following test block;
Described to-and-fro movement driver element is one by motor-driven slider-crank mechanism, and with the motor-driven crank, reciprocating slide block is connected with spouse's test specimen by connecting rod;
Described loading unit be set to can be multistage the loading lever that loads of increment, described loading lever loads by the test block pressure transmission that makes progress of pressure transmission part;
Described friction coefficient measurement unit is that following test block is the force transducer of measured piece, and force transducer is arranged on down an end of test block;
Described temperature conditioning unit comprises test block surface temperature sensor, environment temperature sensor and the electrothermal device that heating cycle is set according to the environment temperature of setting.
But the design feature of the big stroke temperature control of the utility model high-frequency high specific pressure reciprocating friction proving installation also is:
End at connecting rod is provided with the holder that is made of left anchor clamps and right anchor clamps, and described spouse's test specimen is clamped in the described holder.
Corresponding to described test block and the following test block gone up, spouse's test specimen is last spouse's test specimen and the following spouse's test specimen that split is provided with, and above spouse's test specimen matches with the described test block of going up, and following spouse's test specimen matches with described test block down.
Protective cover is set with unit under test guard shield portion within it; Run through described protective cover and be provided with oil fuel tube, corresponding to the position of described oil fuel tube, described on test block and described pressure transmission part be provided with the oil hole of perforation;
At the outer setting stay-warm case of described protective cover, described electrothermal device is between protective cover and stay-warm case.
It is 1: 7 that the resistance arm of described loading lever and the dimension scale of power arm are set, and the load that makes amplification loads by the test block pressure transmission that makes progress of pressure transmission part, realizes that the spouse's test specimen and the surface of contact specific pressure of last test block and following test block reach 40Mpa.
The motor that is provided with in the to-and-fro movement driver element is a variable-frequency motor, and the crank that is driven by variable-frequency motor is set makes slide block obtain reciprocating frequency to reach 40Hz.
Slider-crank mechanism in the to-and-fro movement driver element is set so that the to-and-fro movement stroke of slide block is 115 millimeters.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model reaches 0～2500 rev/min by the range of speeds that can make crank that is provided with of suitable selection motor and suitable toggle, thereby the reciprocating frequency of slide block is reached more than the 40Hz, and make the to-and-fro movement stroke of slide block reach 115 millimeters; The leverage that used 1: 7 amplifies plus load, and the surface of contact specific pressure can reach 40MPa, realizes the measurement of friction factor in the reciprocal variable motion of big stroke, the big and Controllable Temperature of frequency height, surface of contact specific pressure.
2, the utility model can be widely used in the rubbing characteristics test when making large stroke reciprocating under friction speed, different loads and varying environment temperature of various material parts, also can record the ultimate load of part.
Description of drawings
Fig. 1 is the utility model structural principle synoptic diagram.
Number in the figure: 1 crank; 2 connecting rods; 3 slide blocks; 4 pedestals; 5 stay-warm cases; 6 protective covers; 7 lubricating cups; 8 pressure transmission parts; Test block surface temperature sensor on 9; 10 environment temperature sensors; 11 load lever; 12 electrothermal devices; 13 supports; 14 force transducers; 15 balls; 16 times test blocks; Test block on 17; 18 right anchor clamps; 19 spouse's test specimens; 20 left anchor clamps.
Embodiment
Referring to Fig. 1, present embodiment is made up of unit under test, to-and-fro movement driver element, loading unit, friction coefficient measurement unit and temperature conditioning unit;
Comprise last test block 17 and following test block 16 that split is provided with in the unit under test, following test block 16 is supported on the ball 15, and last test block 17 is inverse-T-shaped setting with pressure transmission part 8; Between last test block 17 and following test block 16, reciprocating spouse's test specimen 19 is to contact for face with following test block 16 with last test block 17;
The to-and-fro movement driver element is one by motor-driven slider-crank mechanism, and with motor-driven crank 1, reciprocating slide block 3 is connected with spouse's test specimen 19 by connecting rod 2;
Loading unit be set to can be multistage the loading lever 11 that loads of increment, load lever 11 by upwards test block 17 pressure transmissions loading of pressure transmission part 8;
The friction coefficient measurement unit is that following test block 16 is the force transducer 14 of measured piece, and force transducer 14 is arranged on down an end of test block 16;
Temperature conditioning unit comprises test block surface temperature sensor 9, environment temperature sensor 10 and the electrothermal device 12 that heating cycle is set according to the environment temperature of setting.
In concrete the enforcement, toggle is fixedly installed on the pedestal 4, slide block 3 connects spouse's test specimen 19 by connecting rod 2, specifically be the holder that is made of left anchor clamps 20 and right anchor clamps 18 to be set in the end of connecting rod 2, spouse's test specimen 19 is clamped in this holder, corresponding to last test block and following test block, the test specimen that matches with its formation is that spouse's test specimen 19 also can be last spouse's test specimen and the following spouse's test specimen that split is provided with, above spouse's test specimen matches with last test block, and following spouse's test specimen matches with following test block.
Protective cover shown in Fig. 16 is with unit under test guard shield portion within it; Run through protective cover 6 and be respectively arranged with oil fuel tube 7, go up test block surface temperature sensor 9, environment temperature sensor 10, and pressure transmission part 8;
Corresponding to oil fuel tube 7 positions, last test block 17 and pressure transmission part 8 are provided with the oil hole of perforation, so that can annotate on rubbing surface by the lubricating oil of oil fuel tube 7 droppings;
The outer setting stay-warm case 5 of protective cover 6, electrothermal device 12 are between protective cover and stay-warm case, and this form can make the environment temperature in the protective cover stable more and even.
Load is to utilize to add counterweight and load lever 11 and load step by step along normal direction by pressure transmission part 8, realizes the mode that multistage increment loads.
For the version in the present embodiment, the range of speeds that can make crank that is provided with by suitable selection motor and suitable toggle reaches 0～2500 rev/min, thereby the reciprocating frequency of slide block is reached more than the 40Hz, and make the to-and-fro movement stroke of slide block reach 115 millimeters; The leverage that used 1: 7 amplifies plus load, and the surface of contact specific pressure can reach 40MPa, realizes the measurement of friction factor in the reciprocal variable motion of big stroke, the big and Controllable Temperature of frequency height, surface of contact specific pressure.
Claims (8)
1. but the big stroke temperature control of high-frequency high specific pressure reciprocating friction proving installation is characterized in that being made up of unit under test, to-and-fro movement driver element, loading unit, friction coefficient measurement unit and temperature conditioning unit;
Comprise last test block (17) and following test block (16) that split is provided with in the described unit under test, described test block (16) down is supported on the ball (15), and the described test block (17) of going up is inverse-T-shaped setting with pressure transmission part (8); Be positioned at describedly go up between test block (17) and the following test block (16), reciprocating spouse's test specimen (19) be with described on test block (17) contact for face with following test block (16);
Described to-and-fro movement driver element is one by motor-driven slider-crank mechanism, and with motor-driven crank (1), reciprocating slide block (3) is connected with spouse's test specimen (19) by connecting rod (2);
Described loading unit be set to can be multistage the loading lever (11) that loads of increment, described loading lever (11) is by upwards test block (17) pressure transmission loading of pressure transmission part (8);
Described friction coefficient measurement unit is that following test block (16) is the force transducer of measured piece (14), and force transducer (14) is arranged on down an end of test block (16);
Described temperature conditioning unit comprises test block surface temperature sensor (9), environment temperature sensor (10) and the electrothermal device (12) that heating cycle is set according to the environment temperature of setting.
2. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 reciprocating friction proving installation, it is characterized in that in the end of connecting rod (2) holder that is made of left anchor clamps (20) and right anchor clamps (18) being set, described spouse's test specimen (19) is clamped in the described holder.
3. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 and 2 reciprocating friction proving installation, it is characterized in that corresponding to described test block (17) and the following test block (16) gone up, last spouse's test specimen and following spouse's test specimen that spouse's test specimen (19) is provided with for split, above spouse's test specimen matches with the described test block (17) of going up, and following spouse's test specimen matches with described test block (16) down.
4. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 and 2 reciprocating friction proving installation is characterized in that being provided with protective cover (6) with unit under test guard shield portion within it; Run through described protective cover (6) and be provided with oil fuel tube (7), corresponding to the position of described oil fuel tube (7), described on test block (17) and described pressure transmission part (8) be provided with the oil hole of perforation.
5. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 and 2 reciprocating friction proving installation is characterized in that the outer setting stay-warm case (5) at described protective cover (6), and described electrothermal device (12) is positioned between protective cover (6) and the stay-warm case (5).
6. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 reciprocating friction proving installation, it is characterized in that the resistance arm of described loading lever (11) is set and the dimension scale of power arm is 1: 7, the load that makes amplification realizes that by upwards test block (17) pressure transmission loading of pressure transmission part (8) the spouse's test specimen (19) and the interface pressure of last test block (17) and following test block (16) reach 40Mpa.
7. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 reciprocating friction proving installation, the motor that it is characterized in that being provided with in the to-and-fro movement driver element is a variable-frequency motor, and the crank (1) that is provided with by the variable-frequency motor driving makes the reciprocating frequency of slide block (3) acquisition reach 40Hz.
8. but the big stroke temperature control of high-frequency high specific pressure according to claim 1 reciprocating friction proving installation is characterized in that being provided with the slider-crank mechanism in the to-and-fro movement driver element so that the to-and-fro movement stroke of slide block (3) is 115 millimeters.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200438573U CN202049105U (en) | 2011-02-21 | 2011-02-21 | High-frequency high specific pressure long-stroke and temperature controllable reciprocating friction testing device |
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| CN2011200438573U CN202049105U (en) | 2011-02-21 | 2011-02-21 | High-frequency high specific pressure long-stroke and temperature controllable reciprocating friction testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175599A (en) * | 2011-02-21 | 2011-09-07 | 合肥工业大学 | High-frequency high-specific pressure long-stroke temperature-controllable reciprocating friction test device |
| CN102680083A (en) * | 2012-06-11 | 2012-09-19 | 西南交通大学 | Method for testing and analyzing frictional noise and test device for method |
| CN106872169A (en) * | 2017-03-16 | 2017-06-20 | 常熟长城轴承有限公司 | Swing leakage fat testing machine |
-
2011
- 2011-02-21 CN CN2011200438573U patent/CN202049105U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175599A (en) * | 2011-02-21 | 2011-09-07 | 合肥工业大学 | High-frequency high-specific pressure long-stroke temperature-controllable reciprocating friction test device |
| CN102680083A (en) * | 2012-06-11 | 2012-09-19 | 西南交通大学 | Method for testing and analyzing frictional noise and test device for method |
| CN102680083B (en) * | 2012-06-11 | 2013-10-16 | 西南交通大学 | Method for testing and analyzing frictional noise and test device for method |
| CN106872169A (en) * | 2017-03-16 | 2017-06-20 | 常熟长城轴承有限公司 | Swing leakage fat testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20140221 |