Bearing roller smearing testing machine and its simulation analysis

Abstract

Rolling bearings are the most common rotating mechanical parts in actual work, with the rapid development of industrial technology, the performance requirements of rolling bearings in actual work are getting widely used, but under the actual working conditions, some large bearings with low speed and heavy load are easy to be smeared and lead to the extension of bearing life. In order to study the effect of early surface smearing on the fatigue life of rolling bearings, a self-designed bearing roller early smearing tester was designed, the test machine can simulate the movement process of roller in the bearing and make different degree of smearing on the surface of roller. According to the function, the smearing testing machine is divided into four parts: driving system, loading system, signal acquisition system and test system. The smearing testing machine can set the test conditions according to relevant theories to fabricate different degree of early smearing on the bearing roller surface, the transient dynamics simulation can simulate the smearing test of the testing machine, by comparing the results of the simulation analysis with the actual experimental circumstances, the stability and reliability of the testing machine can be proved, and it can also be testified that the test results of the testing machine are researchable.