A self-balancing thrust bearing test bench

Abstract

The invention discloses a self-force balancing thrust bearing test board, which comprises a base; a medium container is connected onto the base; a lubrication medium inlet and a lubrication medium outlet are formed in the medium container; a load-bearing frame is arranged in the medium container; the upper end of the load-bearing frame is connected with an load-bearing frame end cover; a projecting shaft of a torque sensor is respectively connected with a medium container cover bearing seat and the load-bearing frame end cover; the load-bearing frame end cover is connected with a hydraulic cylinder; a piston rod of the hydraulic cylinder is connected with a balancing thrust bearing assembly through an upper load-bearing disc; the balancing thrust bearing assembly and a test thrust bearing assembly are arranged in the load-bearing frame in a back-to-back manner, and share the upper end face and the lower end face of a thrust disc; a lower load-bearing plate is connected with a belleville spring assembly; torque generated by friction between the end face of the thrust disc and the face of a bearing bush and friction torque for supporting an antifriction bearing are measured through the torque sensor; the friction characteristic of a thrust bearing is analyzed through a pressure sensor in the balancing thrust bearing assembly; the service condition of the thrust bearing of a lubricating agent can be simulated. The measurement accuracy of a friction performance coefficient is increased by the self-force balancing thrust bearing test board disclosed by the invention.

Description

technical field [0001] The invention relates to a thrust bearing test stand, in particular to a force self-balancing thrust bearing test stand. Background technique [0002] Modeling experiment is an important means of large-scale thrust bearing research. The most important feature of modeling experiment is to simulate the actual working conditions of thrust bearing operation. The main control variables of thrust bearing experiment are load, speed, lubricating medium, etc. The friction coefficient is calculated by measuring the frictional force (moment) generated between the friction pairs and the normal pressure acting on the bearing pair, so as to monitor the operating state and friction and wear characteristics of the bearing. At present, the authorized and published patents include "Water-lubricated thrust bearing test device" (application number: 200820089869.8 announcement number: CN201202521Y); "a thrust bearing test device" (application number: 200910236771.X publica...

AI Technical Summary

Problems solved by technology

However, in the above test benches, rolling bearings or other sliding bearings are used to balance the axial loading force, so that the additional friction force of the supporting bearing is added when measuring the friction force of the experimental bearing pair, and this additional friction force will change with the load change. Inconvenient correction

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