Test device for accurately measuring static friction coefficient

A static friction coefficient and precise measurement technology, which is applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of inaccurate static friction coefficient, inability to measure static friction coefficient, and inability to guarantee the contact surface, so as to improve measurement accuracy and improve measurement reliability performance, to achieve the effect of measurement
CN113340804AInactive Publication Date: 2021-09-03BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2021-09-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a test device for accurately measuring a static friction coefficient. The test device comprises a pressure loading assembly, a pressure sensor, a pressure adjusting assembly, a rolling bearing pair assembly, a temperature adjusting assembly, a thrust loading assembly, a thrust sensor, a thrust adjusting assembly and a base. The upper end of the pressure sensor is connected with the pressure loading assembly, and the lower end is connected with the pressure adjusting assembly; the lower end of the pressure adjusting assembly is connected with the rolling bearing pair assembly; a contact surface is formed between the rolling bearing pair assembly and the temperature adjusting assembly; the left end of the thrust sensor is connected with the thrust adjusting assembly, and the right end of the thrust sensor is connected with the thrust loading assembly; and all the assembliesare integrally mounted on the base. The device is convenient to operate, and can accurately measure the static friction coefficient between the contact surfaces of two objects under different temperature conditions.
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Description

technical field

[0001] The invention belongs to the field of mechanical design, in particular to a test device for accurately measuring the coefficient of static friction. Background technique

[0002] As one of the basic properties of material contact, friction is usually measured by the coefficient of dynamic friction and the coefficient of static friction. A lot of research has been done on the measurement of the coefficient of dynamic friction at home and abroad, and corresponding testing instruments have been developed. The measurement technology conditions are quite mature, but the research on the measurement device of the coefficient of static friction is rarely involved. The coefficient of static friction is closely related to the shape characteristics of the contact surfaces, temperature load, and the normal pressure on the contact surfaces. Therefore, in order to more accurately measure the coefficient of static friction between the contact surfaces, it is urgent t...

Claims

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