CN2835991Y - Vacuum low-temperature frictional property tester for friction material - Google Patents
Vacuum low-temperature frictional property tester for friction material Download PDFInfo
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- CN2835991Y CN2835991Y CN 200520052050 CN200520052050U CN2835991Y CN 2835991 Y CN2835991 Y CN 2835991Y CN 200520052050 CN200520052050 CN 200520052050 CN 200520052050 U CN200520052050 U CN 200520052050U CN 2835991 Y CN2835991 Y CN 2835991Y
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- vacuum
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- molecular pump
- frictional
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Abstract
The utility model relates to a vacuum low temperature frictional property tester for friction materials, which comprises a friction tester, a molecular pump and a low temperature cooling liquid circulating pump, wherein a vacuum cooling room is arranged between a cylinder and a rotary table of the friction tester. Two grinding heads of the friction tester are positioned in the vacuum cooling room, and both sides of the cooling room are respectively provided with a flange opening. One flange opening is connected with the molecular pump, and the other one is connected with the low temperature cooling liquid circulating pump. The utility model combines the friction tester, the molecular pump and the low temperature cooling liquid circulating pump, and can test the frictional properties of friction materials in vacuum low temperature environment which is really simulated. The utility model realizes the test of the frictional properties of the friction materials in a low pressure and small torque mode in the vacuum low temperature environment, can eliminate the disturbance of artificial factors, enhance the test precision and the test speed, and make up the domestic test blank of the frictional properties of the friction materials in the vacuum low temperature environment.
Description
Technical field
The utility model relates to the device that a kind of frictional behaviour detects, and is a kind of device that friction material is carried out the frictional behaviour detection in vacuum low-temperature environment specifically.
Technical background
In the prior art, MM1000 type frictional property test machine is through being commonly used to detect the testing machine of friction material frictional behaviour, being mainly used in the detection of friction material frictional behaviour under the normal temperature and pressure conditions.And the detection of friction material frictional behaviour also is in blank under the against vacuum, cryogenic conditions.Along with the development of China's aerospace industry, friction material progressively is used in space industry, and the domestic friction material checkout equipment that vacuum in the simulation space, low temperature environment are not arranged as yet.Because the special requirement of friction material environment for use, so need a kind of testing machine that in vacuum low-temperature environment, friction material is carried out the frictional behaviour detection now.
Summary of the invention:
The purpose of this invention is to provide and a kind ofly under vacuum low-temperature environment, friction material is carried out the device that frictional behaviour detects, make it can be in atmospheric environment to 10
-5Under the condition of Pa vacuum environment and 0～-55 ℃ low temperature friction material is carried out the detection of frictional behaviour.
Vacuum and low temperature friction material frictional behaviour pick-up unit, comprise frictional testing machine, molecular pump and cryogenic liquid ebullator, between the cylinder of frictional testing machine and universal stage, a vacuum cooled chamber is set, two bistriques of frictional testing machine are in the vacuum cooled chamber, the vacuum cooled chamber is by inside and outside two-layer the composition, internal layer is a vacuum chamber, skin is a cooling chamber, a flange port respectively is with in the cooling chamber both sides, and one is the interface of bleeding, and connects with molecular pump, molecular pump is bled to vacuum chamber, another is a gathering hole, connects with the cryogenic liquid ebullator, and the cryogenic liquid ebullator utilizes the cool cycles of liquid coolant that vacuum chamber is lowered the temperature.
The utility model is with frictional testing machine and molecular pump, cryogenic liquid ebullator three combines, can simulate truly in vacuum low-temperature environment friction material is carried out the frictional behaviour detection, realized that the friction material in vacuum low-temperature environment carries out the frictional behaviour test of little pressure, low moment of torsion, the interference of human factor be can get rid of, the precision and the speed that detect improved.Remedy domestic blank of in vacuum low-temperature environment, friction material being carried out the frictional behaviour detection.
Description of drawings
Fig. 1: the utility model structural representation;
Fig. 2: vacuum cooled chamber sectional view.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The utility model comprises that MM1000 type frictional testing machine, molecular pump 7 and cryogenic liquid ebullator 10 frictional testing machines mainly comprise flying wheel 1, shaft coupling 2, main shaft 3, clutch coupling 4, motor 5, universal stage 6 and cylinder 9 are provided with a vacuum cooled chamber 8 between the cylinder 9 of frictional testing machine and universal stage 6, vacuum cooled chamber 8 respectively with molecular pump 7 and cryogenic liquid ebullator 10.
The vacuum cooled chamber is by inside and outside two-layer the composition, internal layer is a vacuum chamber 14, skin is a cooling chamber 12, be arranged between the universal stage and cylinder of MM-1000 type frictional testing machine, the cooling chamber both sides, respectively be with a flange port 13 up and down, one is connected on the FD-600H molecular pump for the interface of bleeding, and another is a gathering hole.Establish vacuum dynamic seal 11 devices on the end plate of two ends, the sealing device is made up of the reinforced seal of multiple tracks lip type, passes through oil lubrication.On the one end fixation test platform of vacuum chamber, the axle sleeve of the other end can axially move in motive seal, to guarantee that friction disc can hold out against or come off.The liquid coolant input interface is arranged at top, vacuum cooled chamber, and the liquid coolant output interface is arranged at the bottom, and these two interfaces are connected on the DLSB-50/80 type cryogenic liquid ebullator.When the FD-600H molecular pump is evacuated to certain vacuum to the vacuum chamber of vacuum cooled chamber, again two coolant connections of the cooling circulation liquid in the DLSB-50/80 type cryogenic liquid ebullator by the vacuum cooled chamber are cooled off.Avoid like this in the vacuum chamber owing to do not bleed, also there is certain water vapour in the inside, when running into DLSB-50/80 type cryogenic liquid ebullator the vacuum cooled chamber being cooled off, causing has icing situation to take place in the vacuum chamber.At present, the motor maximum speed of MM-1000 type frictional testing machine is 2650r/min, the specimen test minimum speed is about 40r/min, and it is unstable, in order to reach the minimum requirements of sample 6r/min, the belt size of planning motor is reduced to 180mm by 380mm, reduces ratio of gear, when guaranteeing that the slow-speed of revolution steadily requires, make the test function reach the slip speed of 4000r/min.Working pressure only is 0.014MPa when detecting, actual conditions according to MM-1000 type frictional testing machine, the pressure of existing cylinder is 0.9-10KN, and therefore the pressure cylinder with MM-1000-1700 changes to the little pressure cylinder of MM-1000-1900, and its pressure limit is 0.15-1.5KN.Simultaneously pressure transducer is changed to respective model, torque sensor also is replaced by corresponding model.
Claims (1)
1. vacuum and low temperature friction material frictional behaviour pick-up unit, comprise frictional testing machine, molecular pump and cryogenic liquid ebullator, it is characterized in that: between the cylinder of frictional testing machine and universal stage, a vacuum cooled chamber is set, two bistriques of frictional testing machine are in the vacuum cooled chamber, the vacuum cooled chamber is by inside and outside two-layer the composition, internal layer is a vacuum chamber, skin is a cooling chamber, a flange port respectively is with in the cooling chamber both sides, and one is the interface of bleeding, and connects with molecular pump, molecular pump is bled to vacuum chamber, another is a gathering hole, connects with the cryogenic liquid ebullator, and the cryogenic liquid ebullator utilizes the cool cycles of liquid coolant that vacuum chamber is lowered the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052050 CN2835991Y (en) | 2005-09-30 | 2005-09-30 | Vacuum low-temperature frictional property tester for friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052050 CN2835991Y (en) | 2005-09-30 | 2005-09-30 | Vacuum low-temperature frictional property tester for friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835991Y true CN2835991Y (en) | 2006-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052050 Expired - Fee Related CN2835991Y (en) | 2005-09-30 | 2005-09-30 | Vacuum low-temperature frictional property tester for friction material |
Country Status (1)
| Country | Link |
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| CN (1) | CN2835991Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393113B (en) * | 2008-11-05 | 2010-10-13 | 中国科学院力学研究所 | Device for measuring material friction action in multiatmosphere and vacuum environment |
| CN101311722B (en) * | 2007-05-22 | 2011-05-11 | 中国科学院理化技术研究所 | High vacuum environment rotary part heating and cooling apparatus and method |
| CN102645403A (en) * | 2012-04-16 | 2012-08-22 | 中国科学院等离子体物理研究所 | Device for measuring friction coefficients under low-temperature, vacuum and strong electromagnetic environment |
| CN103335942A (en) * | 2013-07-08 | 2013-10-02 | 大连理工大学 | Equipment and method used for measuring friction coefficient between plastic and metal mold |
| CN107560958A (en) * | 2017-09-25 | 2018-01-09 | 清华大学 | The ultralow vibration friction testing arrangement of ultralow temperature |
| CN107796754A (en) * | 2017-05-19 | 2018-03-13 | 浙江元本检测技术股份有限公司 | The apparatus and method that negative pressure of vacuum tests muck soil coefficient of friction |
| CN115855796A (en) * | 2022-12-01 | 2023-03-28 | 合肥工业大学 | Vacuum low-temperature rotary tribology tester and testing method thereof |
-
2005
- 2005-09-30 CN CN 200520052050 patent/CN2835991Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311722B (en) * | 2007-05-22 | 2011-05-11 | 中国科学院理化技术研究所 | High vacuum environment rotary part heating and cooling apparatus and method |
| CN101393113B (en) * | 2008-11-05 | 2010-10-13 | 中国科学院力学研究所 | Device for measuring material friction action in multiatmosphere and vacuum environment |
| CN102645403A (en) * | 2012-04-16 | 2012-08-22 | 中国科学院等离子体物理研究所 | Device for measuring friction coefficients under low-temperature, vacuum and strong electromagnetic environment |
| CN102645403B (en) * | 2012-04-16 | 2015-11-18 | 中国科学院等离子体物理研究所 | The device of friction factor under measurement low temperature, vacuum, strong electromagnetic environment |
| CN103335942A (en) * | 2013-07-08 | 2013-10-02 | 大连理工大学 | Equipment and method used for measuring friction coefficient between plastic and metal mold |
| CN107796754A (en) * | 2017-05-19 | 2018-03-13 | 浙江元本检测技术股份有限公司 | The apparatus and method that negative pressure of vacuum tests muck soil coefficient of friction |
| CN107796754B (en) * | 2017-05-19 | 2024-04-23 | 浙江元本检测技术股份有限公司 | Device and method for testing friction coefficient of mucky soil by vacuum negative pressure |
| CN107560958A (en) * | 2017-09-25 | 2018-01-09 | 清华大学 | The ultralow vibration friction testing arrangement of ultralow temperature |
| CN115855796A (en) * | 2022-12-01 | 2023-03-28 | 合肥工业大学 | Vacuum low-temperature rotary tribology tester and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |