An optical measurement device for the surface friction and lubrication performance of a reciprocating friction pair

Abstract

The invention provides a reciprocating optical measuring device for the surface frictional lubricating performance of a friction pair. The optical measuring device comprises an experiment operation table, an installation frame, a driving device, a centrifugal speed controller, a crank block slide groove device, a fused quartz pad, a sample clamping device, a measuring device, a lubricating device,a supporting device and a hydraulic transmission device. The optical measuring device has the advantages that a motor and the centrifugal speed controller form a feedback system, and thus the continuous and stable output speed is guaranteed; and the condition that the reciprocating rectilinear movement of the fused quartz pad in a horizontal direction in different travels can be realized by adjusting a dividing ruler of the crank block slide groove device. In addition, the measuring device induces pressure and friction force applied on a sample, acquires a surface texture image of the friction pair, and measures and evaluates the friction lubricating performance on the surface of the friction pair moving under different loads and at different temperatures, the image is analyzed through alaser-induced fluorescence spectrum method, and the cavitation phenomenon and the lubricating effect on the surface of the friction pair can be precisely observed.

Description

technical field [0001] The invention belongs to the technical field of friction measurement, in particular to an optical measurement device for the surface friction lubrication performance of a reciprocating friction pair. Background technique [0002] With the development needs of aviation, aerospace, high-speed rail and other equipment industries, the equipment manufacturing industry is constantly developing in the direction of high precision, high speed and high efficiency. Since aero-engine bearings, high-speed rail axle box bearings and other components need to operate under high temperature and heavy load conditions for a long time, they are subjected to large contact dynamic loads and temperature changes, so it is very important to study their friction and lubrication performance for the overall performance of the equipment meaning. [0003] At present, domestic friction measurement devices cannot simultaneously study the influence of different loads and different te...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic friction measurement devices cannot simultaneously study the influence of different loads and different temperatures on friction and lubrication performance

At the same time, the existing domestic friction measurement devices fail to obtain real-time surface texture images of friction pairs, but the surface texture of friction pairs is one of the most effective means to study friction and lubrication performance

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