Universal self-adaption fixture for sliding friction-wear test

Abstract

The invention provides a universal self-adaption fixture for a sliding friction-wear test. The universal self-adaption fixture for the sliding friction-wear test comprises a force transmission shaft, a locating pin, a steel ball and an upper sample, wherein the upper end of the force transmission shaft is fixedly connected with a friction-wear testing machine, the locating pin is in interference fit with the force transmission shaft, and is in clearance fit with the upper sample. On one hand, the upper sample can be prevented from self-rotating along the force transmission shaft in the sliding friction-wear test, and on the other hand, the upper sample can be guaranteed to have enough space to carry out micro universal adjustment. The steel ball is arranged between the force transmission shaft and the upper sample, and is used for achieving the universal adjustment of the upper sample in the sliding friction-wear test. An oil hole is formed in the upper sample and used for storing lubricating oil, and the flexible rotating of the steel ball is guaranteed. The universal self-adaption fixture for the sliding friction-wear test can maintain surface-to-surface contact consistently, and has the advantages of being high in reliability, simple in structure and low in manufacture cost.

Description

technical field [0001] The invention relates to a universal self-adaptive fixture, in particular to a universal self-adaptive fixture used for sliding friction and wear tests in the field of mechanical engineering. Background technique [0002] The friction and wear test is an important test method to evaluate the wear resistance of metal materials, and the friction and wear test is usually carried out on a professional multifunctional friction and wear testing machine. The friction and wear testing machine can not only simulate a variety of working conditions, such as friction and wear under different temperature, humidity, load, motion speed and lubrication conditions, but also provide sliding, rolling, rolling, linear reciprocating and other motion forms and points, Various friction pair contact methods such as line and surface. Among them, surface-surface contact is a commonly used friction pair contact method, which can be used to simulate various friction pairs such a...

AI Technical Summary

Problems solved by technology

Although the chuck of this utility model patent can realize the universal adjustment of the friction surface, in the process of friction and wear, the ball segment and the upper sample are likely to rotate in the horizontal direction, which will bring uncertainty to the friction and wear test. Additional wear, directly affects test results

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