Test machine for lubrication and friction and abrasion features of bearing bush

Abstract

The invention provides a test machine for lubrication and friction and abrasion features of a bearing bush. The test machine includes: a servo motor, a first coupling, a torque sensor, a second coupling, a test main shaft, a first main shaft supporting base, a test bearing bush, a second main shaft supporting base, and a connecting rod. The output shaft of the servo motor is connected to one end of the torque sensor through the first coupling. The other end of the torque sensor is connected to the test main shaft through the second coupling. The test main shaft is arranged on the first main shaft supporting base and the second main shaft supporting base through a rolling bearing. The connecting rod is arranged between the first main shaft supporting base and the second main shaft supporting base. The test bearing bush is installed in an end hole in one end of the connecting rod and is assembled with the test main shaft to form a friction pair for relative rotational motion. The test machine can quickly test a change principle of friction coefficient, oil film thickness and oil film pressure between the test bearing bush and the test main shaft along with change of the rotation speed of the test main shaft at different lubricant oil temperature and under different load, and also can be used for perform start-stop test.

Description

technical field [0001] The invention relates to the technology of a bearing pad testing machine, in particular to a testing machine for bearing pad lubrication and friction and wear characteristics. Background technique [0002] Bearing bushes are important components in industrial applications and play an extremely important role in national economy and national defense equipment. The bearing pad lubrication and friction and wear characteristics testing machine of the present invention is a comprehensive test machine capable of quickly testing the laws of different lubricating oil temperatures, bearing pad friction coefficients under different loads, oil film pressure and oil film thickness as the test spindle speed changes, and start-stop tests. The performance testing machine provides important data support and verification for the mechanism research, structural design and simulation of bearing pads; the testing machine can conduct tests in two working modes, which can me...

AI Technical Summary

Problems solved by technology

[0003] At present, the friction and wear characteristics tests for rapid screening of bearing pad materials are mostly plane tests, and the test method is mostly a single mode, which cannot quickly provide data support for the friction coefficient of the full or half pad that forms a dynamic pressure oil film under lubrication conditions, so as to quickly Screening of bearing pad materials, and the comprehensive test of oil film pressure, oil film thickness and start-stop cannot be carried out on bearing pads, which hinders the basic research of bearing pad materials and bearing pad structures

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