CN108593473A - A kind of constant-temperature constant-humidity environment abrasion test case - Google Patents
A kind of constant-temperature constant-humidity environment abrasion test case Download PDFInfo
- Publication number
- CN108593473A CN108593473A CN201810129284.2A CN201810129284A CN108593473A CN 108593473 A CN108593473 A CN 108593473A CN 201810129284 A CN201810129284 A CN 201810129284A CN 108593473 A CN108593473 A CN 108593473A
- Authority
- CN
- China
- Prior art keywords
- constant
- humidity environment
- temperature
- box
- babinet
- Prior art date
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 238000005299 abrasion Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 70
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000004580 weight loss Effects 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
A kind of constant-temperature constant-humidity environment abrasion test case of the present invention, refers specifically to a kind of constant-temperature constant-humidity environment abrasion test case, is related to wear-resisting test technical field.The present invention includes babinet (1), the outer driving motor (3) of babinet (1) and driving motor (3) fixing bracket (2) and electric appliance control box (4)；Babinet (1) is the constant-temperature constant-humidity environment of a sealing；Wherein, setting drive shaft (5) in babinet (1), upper part is connect with drive disk (7), drive shaft (5) lower end is fixedly connected with the shaft coupling (6) of babinet (1) outside is stretched out, and shaft coupling (6) other end is fixedly connected with driving motor (3)；Setting fixes the clamping limb (10) of material to be tested through electric appliance control box (4) and babinet (1)；Make Relative vertical contact with wafer body material (8) in the spherical or flat end face of round bar shape material (9).Quick test suitable for Parts Materials wear-resisting property under various humiture environment such as including auto parts.
Description
Technical Field
The invention relates to the technical field of wear resistance tests, in particular to a constant-temperature constant-humidity environment wear resistance test box which is suitable for quickly testing the wear resistance of mechanical part materials such as automobile parts and the like in various temperature and humidity environments.
Background
In the structure of the automobile glass lifter product, a sliding block bearing automobile glass slides up and down under the constraint of a guide rail, and a relative sliding friction motion is generated between the sliding block and the guide rail, so that the sliding block and the guide rail are abraded, and how to select the optimal sliding block material and the optimal surface treatment material of the guide rail is a great difficulty in the design of the glass lifter product. A friction resistance test needs to be designed, and the selected materials are subjected to test comparison; if the wear-resisting test is arranged on an actual vehicle door to be implemented, the stress of the slide block working in the glass lifter system is complex, namely the contact pressure of the slide block and the guide rail is not constant, the test result cannot objectively reflect the actual wear-resisting property of the material, and a real and effective wear-resisting property result cannot be obtained; the motor used in the test is used intermittently, the test period needs frequent rest for heat dissipation, the test period is long, and the test cost is high; the wear resistance can be judged only subjectively, and an objective wear loss evaluation is difficult to carry out; the evaluation of the wear resistance of the material and the selection of the material are not significant.
Generally, when materials are selected, a wear resistance test for the materials is designed, and the test environment simulates the actual working environment of parts as much as possible to detect the wear resistance of the two materials. At present, most of wear-resisting test equipment on the market is made of two materials into required shapes: one material is processed into a flat sheet part with the length of more than 100mm, the other material is processed into a rod part, the two parts are mutually contacted with each other under a set pressure, one part is static, the other part carries out reciprocating linear motion, and after the operation of a set period, the abrasion loss of the material is evaluated by subjective evaluation of abrasion traces and comparison of weight loss before and after test (shown in figure 1); and subjectively evaluating the noise generated by friction in the test process to finally form the wear-resisting property data of the material. In the existing wear-resisting test equipment in the market, a driving part of the existing wear-resisting test equipment generally adopts a screw transmission structure and is used for driving a test body needing to reciprocate, and the structure has the following defects: 1. the running distance of the material is short, and the material can only run for about 100mm generally (if the screw is too long, after the stress is applied, the middle part of the screw generates bending deformation, and the constant pressure in the running process cannot be ensured); 2. the running speed is not high, the linear speed is difficult to exceed 80mm/s, and the running speed of the automobile glass lifter can not be met: 60 mm/s-160 mm/s; 3. some electronic components and motion mechanisms in the equipment are difficult to resist the working environment of high temperature and high humidity; only the evaluation and comparison of the normal temperature wear resistance of the material can be completed, and the test under the high temperature and high humidity environment cannot be carried out. The wear resistance of many non-metallic materials is not linear in change under different temperature and humidity environments, so the wear resistance of the materials in different temperature ranges and different humidity environments needs to be evaluated; 4. the single movement stroke of the test piece is only about 100mm, while the single movement stroke of most automobile glass lifters is 400-550 mm, and the distance of one single movement can be reached only by the reciprocating movement of the test piece for 4-5 times; the test method is equivalent to the cumulative cycle number of forward and reverse friction of two test pieces in a short distance and is different from the actual working state of the part, and the generated abrasion amount is different from the actual working state.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provides a constant temperature and humidity environment wear-resistant test box.
According to the invention, the driving disc is driven by the motor to rotate, the wafer to be tested and the round bar to be tested form relative friction, the rotation speed and the angle of the motor are set to rotate in the forward and reverse directions, and the linear speed of the round bar to be tested can be easily ensured to meet the requirement. Through the torque curve of the torque sensor output on the shaft coupling, can monitor the moment of torsion variation before and after the test piece contact to also can calculate the frictional force value of stick and disk to be measured, moment of torsion (N.m) is frictional force (N) x radius (mm), also indirect monitoring coefficient of friction change condition simultaneously.
A constant temperature and humidity environment abrasion resistance test box (as shown in figure 2) comprises a box body, a driving motor and a driving motor fixing support outside the box body, and an electric appliance control box.
The box body is a sealed constant temperature and humidity environment with the temperature range of minus 40 ℃ to 120 ℃ and the relative humidity range of 10 percent to 90 percent;
the driving shaft is arranged in the box body, the upper part of the driving shaft is connected with the driving disc, the lower end of the driving shaft is fixedly connected with the coupler extending out of the box body, and the other end of the coupler is fixedly connected with the driving motor;
and a clamping arm which penetrates through the electric appliance control box and the box body and is used for fixing the material to be tested is also arranged.
The material to be tested comprises a material to be tested, a material to be tested and a material to be tested, wherein the material to be tested is processed into a round bar shape, and the material to be tested is processed into a wafer body to be tested;
wherein,
the disc body material is fixedly connected with a disc-shaped driving disc through two bolts with disc-shaped gaskets;
one end of the clamping arm is fixedly connected with the round bar-shaped material, and the other end of the clamping arm extends out of the box body and is connected with a force applying mechanism in the electric appliance control box, so that the pressure between the round bar-shaped material and the wafer body material is kept constant;
the spherical or flat end surfaces of the round bar-shaped material are in relatively perpendicular contact with the wafer body material.
A torque sensor for detecting a torque value from the driving disc is arranged in the coupling; the force application mechanism is internally provided with a pressure sensor for displaying data.
In summary, the wear-resistance test equipment is used in combination with a constant temperature and humidity environment test box, different auxiliaries and a small amount of mechanical components can be added to a friction surface, part of sensing devices are arranged in the constant temperature and humidity environment test box, most of control electrical components and main driving mechanical parts are arranged outside a box body of the constant temperature and humidity environment test box, the constant temperature and humidity environment test box can provide a temperature range of-40 ℃ to 120 ℃ and a relative humidity range of 10% to 90%, a wear-resistance test under a complex condition is realized, and a wear-resistance performance quick test under a use environment is completely simulated; effectively preventing the moving mechanical parts from being easily corroded and damaged or destroying the moving state when being exposed in a high-temperature and high-humidity environment, influencing the test result and reducing the service life of equipment. These friction tests in high, low and high temperature and humidity environments can achieve a maximum single stroke of about 600m m for operation that meets the service environment and operating stroke requirements of automotive window lifters or most mechanical parts.
Drawings
FIG. 1 is a schematic diagram of a prior art apparatus;
FIG. 2 is a schematic structural diagram of a constant temperature and humidity environment abrasion resistance test chamber according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
fig. 4 is a schematic structural view of a wear-resistant part according to an embodiment of the present invention.
Description of reference numerals
1: box body
2: motor fixing support
3: electric machine
4: electric appliance control box
5: drive shaft
6: coupling (built-in torque sensor)
7: driving disc
8: wafer of material to be tested
9: round bar of material to be measured
10: clamping arm
Detailed Description
The invention is further described in the following with reference to the figures and examples
The main body of the invention is a constant temperature and humidity environment abrasion resistance test box (as shown in figures 2 and 3). A disc-shaped driving disc 7 with the diameter of 200mm is arranged in the box body 1, one of materials to be tested is processed into a disc-shaped disc body 8, and two screws with disc-shaped gaskets are fixed on the driving disc 7; the lower end of the driving disc 7 is fixed with the driving shaft 5, the driving shaft 5 extends out of the box body, a flange plate is arranged on the box body 1, and a sealing ring is arranged between the flange plate and the driving shaft 5 and used for fixing the driving shaft 5 and achieving sealing effect. The lower part of the box body 1 is provided with a motor fixing bracket 2, a driving motor 3 is fixed on the box body 1, a motor shaft and a driving shaft 5 are kept in a coaxial state, the motor shaft is connected with the driving shaft 5 through a coupler 6, and a torque sensor is arranged in the coupler 6 and used for detecting a torque value from a driving disc.
A material to be tested is processed into a round bar-shaped material 9, one end of a round bar to be tested is processed into a spherical shape, a spherical end face or a plane is in contact with another material to be tested, the round bar-shaped material 9 is fixed at one end of a clamping arm 10, the clamping arm 10 is connected with a force applying mechanism at one end in a control box, a pressure sensor adjusts the pressure value between the round bar-shaped material 9 and a wafer to meet the requirement through the display value of the pressure sensor in the force applying mechanism, the pressure between the round bar to be tested and the wafer to be tested is kept constant, and meanwhile, the relative vertical state of the spherical or flat end face of the round bar-shaped material 9 and the wafer body material 8 is ensured (as shown in figure 4).
Another embodiment, a simple pressure application method, is to place a weight on the rod, and to keep the pressure between the rod-shaped material 9 and the wafer body material 8 constant by the weight of the weight. The position of the rod-shaped material 9 on the wafer body material 8 is determined according to the stroke required for the test.
The holding arms 10 adjust the radius of the contact point of the rod-shaped material 9 on the wafer-shaped material 8 to 60 to 100 mm.
In the example, the stroke of the slider of an automobile window regulator product is 480mm, the round bar-shaped material 9 can be placed at a position with a radius of 80mm, and a single stroke can be completed by rotating the driving disc 0.95 times.
In summary, the wear-resistance test equipment is used in combination with a constant temperature and humidity environment test box, different auxiliaries and a small amount of mechanical components can be added to a friction surface, part of sensing devices are arranged in the constant temperature and humidity environment test box, most of control electrical components and main driving mechanical parts are arranged outside a box body of the constant temperature and humidity environment test box, the constant temperature and humidity environment test box can provide a temperature range of-40 ℃ to 120 ℃ and a relative humidity range of 10% to 90%, a wear-resistance test under a complex environment condition is realized, and a wear-resistance performance quick test under a use environment is completely simulated; effectively preventing the moving mechanical parts from being easily corroded and damaged or destroying the moving state when being exposed in a high-temperature and high-humidity environment, influencing the test result and reducing the service life of equipment. The friction tests under the high-temperature, low-temperature and high-humidity environments can realize the maximum single stroke of about 600m m running distance, and meet the requirements of the use environment and the running stroke of the automobile glass lifter or most mechanical parts.
Claims (5)
1. A wear-resistant test box in a constant-temperature and constant-humidity environment is characterized by comprising a box body (1), a driving motor (3) outside the box body (1), a driving motor (3) fixing support (2) and an electric appliance control box (4);
the box body (1) is a sealed constant temperature and humidity environment with the temperature range of minus 40 ℃ to 120 ℃ and the relative humidity range of 10 percent to 90 percent;
wherein, a driving shaft (5) is arranged in the box body (1), the upper part of the driving shaft is connected with a driving disc (7), the lower end of the driving shaft (5) is fixedly connected with a coupler (6) extending out of the box body (1), and the other end of the coupler (6) is fixedly connected with a driving motor (3);
the clamping arm (10) penetrates through the electric appliance control box (4) and the box body (1) and is used for fixing a material to be tested.
2. The constant-temperature and constant-humidity environment abrasion-resistant test box according to claim 1, wherein the materials to be tested comprise a round bar-shaped material (9) processed by the materials to be tested and a round piece-shaped material (8) processed by the materials to be tested;
wherein,
the disc body material (8) is fixedly connected with a disc-shaped driving disc (7) through two bolts with disc-shaped gaskets;
one end of the clamping arm (10) is fixedly connected with the round bar-shaped material (9), and the other end of the clamping arm extends out of the box body (1) to be connected with a force application mechanism in the control box, so that the pressure between the round bar-shaped material (9) and the wafer body material (8) is kept constant;
the spherical or flat end face of the round bar-shaped material (9) is in relatively vertical contact with the wafer body material (8).
3. The abrasion-resistant test box for the constant-temperature and constant-humidity environment according to claim 1, wherein a torque sensor for detecting a torque value from the driving disc (7) is arranged in the coupling (6); the force application mechanism is internally provided with a pressure sensor for displaying data.
4. The abrasion resistance test chamber under the constant temperature and humidity environment according to claim 2, wherein the force applying mechanism is a weight placed on the rod-shaped material (9) to maintain a constant pressure between the rod-shaped material (9) and the wafer body material (8).
5. The constant-temperature and constant-humidity environment abrasion resistance test chamber as claimed in claims 1 and 2, wherein the holding arm (10) adjusts the radius of the contact point of the round-bar-shaped material (9) on the wafer body material (8) to be 30 to 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129284.2A CN108593473B (en) | 2018-02-08 | 2018-02-08 | Constant temperature and humidity environment wear-resisting test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129284.2A CN108593473B (en) | 2018-02-08 | 2018-02-08 | Constant temperature and humidity environment wear-resisting test box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108593473A true CN108593473A (en) | 2018-09-28 |
| CN108593473B CN108593473B (en) | 2024-05-31 |
Family
ID=63608608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810129284.2A Active CN108593473B (en) | 2018-02-08 | 2018-02-08 | Constant temperature and humidity environment wear-resisting test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108593473B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520875A (en) * | 2018-11-20 | 2019-03-26 | 中国航发贵州黎阳航空动力有限公司 | Turbine rotor blade integral shroud overlay cladding wear resistance at elevated temperature detection method |
| CN110375996A (en) * | 2019-09-02 | 2019-10-25 | 湖南行必达网联科技有限公司 | Glass-frame riser experimental rig and vehicle test system |
| CN112611708A (en) * | 2020-12-18 | 2021-04-06 | 北京理工大学 | Friction experiment device with controllable environmental temperature and humidity |
| CN113702227A (en) * | 2021-08-27 | 2021-11-26 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Cable scraping and grinding test platform |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050029292A (en) * | 2003-09-20 | 2005-03-25 | 학교법인고려중앙학원 | Precision friction tester |
| JP2010256195A (en) * | 2009-04-27 | 2010-11-11 | Hitachi Ltd | Friction and wear testing machine |
| CN202066765U (en) * | 2011-05-04 | 2011-12-07 | 西安工程大学 | Simple pin-on-disk composite material small sample abrasion test device |
| CN102759489A (en) * | 2011-04-27 | 2012-10-31 | 中国人民解放军装甲兵工程学院 | Multifunctional vacuum friction and wear testing machine |
| CN104215536A (en) * | 2014-09-23 | 2014-12-17 | 轻工业钟表研究所 | Cladding layer abrasion-resisting performance testing device |
| CN205246464U (en) * | 2015-12-15 | 2016-05-18 | 唐山学院 | Humid tropical friction and wear testing arrangement |
| CN106885748A (en) * | 2015-12-16 | 2017-06-23 | 上海长园电子材料有限公司 | Radiation macromolecular material product abrasion-resistant detection means |
| CN208125540U (en) * | 2018-02-08 | 2018-11-20 | 上海实业交通电器有限公司 | A kind of constant-temperature constant-humidity environment abrasion test case |
-
2018
- 2018-02-08 CN CN201810129284.2A patent/CN108593473B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050029292A (en) * | 2003-09-20 | 2005-03-25 | 학교법인고려중앙학원 | Precision friction tester |
| JP2010256195A (en) * | 2009-04-27 | 2010-11-11 | Hitachi Ltd | Friction and wear testing machine |
| CN102759489A (en) * | 2011-04-27 | 2012-10-31 | 中国人民解放军装甲兵工程学院 | Multifunctional vacuum friction and wear testing machine |
| CN202066765U (en) * | 2011-05-04 | 2011-12-07 | 西安工程大学 | Simple pin-on-disk composite material small sample abrasion test device |
| CN104215536A (en) * | 2014-09-23 | 2014-12-17 | 轻工业钟表研究所 | Cladding layer abrasion-resisting performance testing device |
| CN205246464U (en) * | 2015-12-15 | 2016-05-18 | 唐山学院 | Humid tropical friction and wear testing arrangement |
| CN106885748A (en) * | 2015-12-16 | 2017-06-23 | 上海长园电子材料有限公司 | Radiation macromolecular material product abrasion-resistant detection means |
| CN208125540U (en) * | 2018-02-08 | 2018-11-20 | 上海实业交通电器有限公司 | A kind of constant-temperature constant-humidity environment abrasion test case |
Non-Patent Citations (2)
| Title |
|---|
| 刘启跃 等: "《摩擦学基础及应用》", 31 January 2015, 西南交通大学出版社, pages: 188 - 193 * |
| 马蕾 等: "低温下高速车轮材料滚动磨损与疲劳损伤行为", 《机械工程学报》, vol. 53, no. 20, 31 October 2017 (2017-10-31), pages 113 - 120 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520875A (en) * | 2018-11-20 | 2019-03-26 | 中国航发贵州黎阳航空动力有限公司 | Turbine rotor blade integral shroud overlay cladding wear resistance at elevated temperature detection method |
| CN110375996A (en) * | 2019-09-02 | 2019-10-25 | 湖南行必达网联科技有限公司 | Glass-frame riser experimental rig and vehicle test system |
| CN112611708A (en) * | 2020-12-18 | 2021-04-06 | 北京理工大学 | Friction experiment device with controllable environmental temperature and humidity |
| CN113702227A (en) * | 2021-08-27 | 2021-11-26 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Cable scraping and grinding test platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108593473B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102207438B (en) | Rolling friction abrasion testing machine | |
| CN108593473A (en) | A kind of constant-temperature constant-humidity environment abrasion test case | |
| CN107271306B (en) | It is a kind of with draw, the friction-wear detecting apparatus of press mechanism and test method | |
| CN106990007B (en) | Method and device for testing relation between residual stress of material and surface hardness | |
| CN101832898B (en) | Horizontal end face frictional wear tester | |
| US7464606B2 (en) | Bend testing apparatus and method of carrying out the same | |
| CN206146769U (en) | Reciprocating type friction wear testing machine | |
| CN110579418A (en) | A lever-loaded friction and wear testing machine with a controllable magnetic field environment | |
| WO2015192437A1 (en) | Compression heat-generation detector and method therefor | |
| CN102519867A (en) | Direct-acting soft friction testing apparatus | |
| CN201583466U (en) | Horizontal end surface friction-abrasion testing machine | |
| CN102590078A (en) | Rubber dynamic friction wear detection device | |
| CN108548776A (en) | A kind of rubber material surface friction property test device | |
| CN110057700A (en) | A kind of bending/curved drawing fretting fatigue and fretting wear pilot system and test method | |
| CN107356524A (en) | The frictional wear test device of wear extent on-line measurement under a kind of vacuum environment | |
| WO2016110191A1 (en) | Compression heating detector | |
| CN108827622B (en) | Torsional fatigue test stand | |
| KR0178865B1 (en) | Rolling friction and abrasion tester | |
| CN208125540U (en) | A kind of constant-temperature constant-humidity environment abrasion test case | |
| CN109540782A (en) | Pin disc type friction and wear testing machine | |
| CN108375450A (en) | A kind of torque spanner calibrating installation | |
| CN115266445A (en) | High-speed impact loading mechanism, friction and wear testing machine and testing method | |
| CN207300569U (en) | A kind of torsion spring endurance testing device | |
| CN110333157A (en) | A kind of test device for ball screw assembly, ball roll sliding friction abrasion | |
| CN111157386B (en) | An integrated test machine for variable load contact lubrication and wear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |