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Vacuum friction abrasion test device

A friction and wear test, vacuum technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of vacuum system pollution, increase the difficulty of vacuum extraction, pump oil backflow and other problems, achieve easy operation and disassembly, simple structure , the effect of eliminating errors

Inactive Publication Date: 2012-08-01
XI AN JIAOTONG UNIV
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Problems solved by technology

The oil diffusion pump is prone to backflow during the vacuum extraction process, and at the same time, the pump oil will generate permanent gases such as methane and hydrogen when it is heated and decomposed, which not only increases the difficulty of vacuum extraction, but also easily pollutes the vacuum system

Method used

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Embodiment Construction

[0016] The structural principle and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] With reference to accompanying drawing, a kind of vacuum friction and wear test device comprises base 18, and vacuum cover 11 is arranged on base 18, and vacuum gauge 13 and inflation valve 12 are installed on the top of vacuum cover 11. The vacuum gauge 13 is used to measure the degree of vacuum in the vacuum cover 11, and the filling valve 12 is used to input the atmosphere inside when the vacuum system is opened. The base 18 is provided with a driving motor 19, and the driving shaft 5 of the driving motor 19 is provided with a moving sample disk 6, and the driving shaft 5 drives the moving sample disk 6 to rotate. The fixed sample 7 is fixed by the fixed sample clamp 8, and the height of the fixed sample 7 is obtained by adjusting the height of the fixed sample clamp 8. The fixed sample fixture 8 is install...

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Abstract

The invention relates to a vacuum friction abrasion test device, which comprise a base, wherein a vacuum cover is arranged on the base, a vacuum meter and an inflating valve are arranged on the vacuum cover, a driving motor is arranged in the base, the upper end of a driving shaft of the driving motor is provided with a movable specimen disc, a fixed specimen is arranged above the movable specimen disc in a contact way and is fixed by a fixed specimen clamp, the fixed specimen clamp is arranged on a U-shaped cantilever beam, a loading weight is placed above the fixed specimen clamp, one end of the U-shaped cantilever beam is provided with a balance weight, linear displacement sensors are symmetrically arranged on the U-shaped cantilever beam, a radial feeding system is fixedly arranged on the base, a regulation rotating shaft is arranged above the radial feeding system, and the U-shaped cantilever beam is connected with the regulation rotating shaft through a connecting element. The vacuum friction abrasion test device has the advantages that according to experiment requirements, the data collection and recording of parameters such as friction force and time can be realized in vacuum environment, in addition, curves of the friction coefficient changed along with the time are drawn, the operation of the device is simple, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of friction and wear testing machines, in particular to a vacuum friction and wear testing device for measuring the friction and wear properties of materials in a vacuum environment. technical background [0002] In a vacuum environment, the tendency of adhesion between materials rubbing against each other increases, and the friction and wear properties change significantly. At the same time, with the development of the aerospace industry, it is increasingly important to study the friction and wear properties of materials under vacuum conditions. The ordinary friction and wear test device cannot meet the research requirements. Therefore, it is necessary to design a corresponding vacuum friction and wear test device to study the material in vacuum. Friction and wear properties under service conditions. [0003] The purpose of the friction and wear experiment is to correctly evaluate the influence of various ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/02
Inventor 曾群锋于飞毛军红董光能
Owner XI AN JIAOTONG UNIV
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