Ball bearing oil film thickness measurement device

Abstract

A ball bearing oil film thickness measurement device comprises a main shaft system, a miniature ultrasonic sensor, a nozzle supporting system, a rolling element spinning angle adjusting system and a load and pressure detection system. By arranging an annular groove on an inner ring, the miniature ultrasonic sensor is placed to measure the oil film thicknesses at the different positions of the inner ring. On the other hand, by changing the surface roughness of the inner ring and a rolling ball, or increasing the textures of various forms on the outer surface of the inner ring, such as the recesses, the stripes, the grids, etc., and by using the inner ring and the rolling ball combined by different materials, the different contact states and spinning states of the rolling element of a bearing are simulated, and the influence of the surface quality of the contact areas, the spinning state of the rolling element and the rolling ball and inner ring materials on an oil film formation effect is researched. An experimental device of the present invention provides a new thinking for the oil film thickness measurement under the different materials, different surface qualities and different contact and spinning states of the rolling ball and a rolling way, and the experiment results have a certain guidance significance for the improvement and design of the contact surface of the rolling bearing.

Description

technical field [0001] The invention belongs to the technical field of rolling bearing lubrication, in particular to a ball bearing oil film thickness measuring device. Background technique [0002] Rolling bearings have a variety of lubrication methods, such as oil injection lubrication, oil and gas lubrication, etc. The common feature is that a certain thickness of lubricating oil film is formed between the rolling elements and the inner and outer rings of the bearing to reduce friction and heat in the contact area and ensure good bearing performance. Operating status. If poor lubrication leads to difficult oil film or oil film rupture, the friction and wear inside the bearing will increase, and the heat generation will increase sharply, which will greatly affect the service performance and service life of the bearing. Therefore, the monitoring technology of oil film characteristics in the bearing contact area under service conditions is very important. Due to the small ...

AI Technical Summary

Problems solved by technology

Difficult to measure the oil film thickness directly due to the small space inside the bearing

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