The Influence of Main Bearing Parameters on The Bearing Wear in Rotary Compressor

Conference Year

2016

Authors

Lingchao Kong, Compressor and Motor Institute of Gree Electric Appliances, Inc. of Zhuhai, China, People's Republic ofFollow
Qingfu Zhao, Compressor and Motor Institute of Gree Electric Appliances, Inc. of Zhuhai, China, People's Republic ofFollow
Liping Ren, Compressor and Motor Institute of Gree Electric Appliances, Inc. of Zhuhai, China, People's Republic ofFollow
Jia Xu, Compressor and Motor Institute of Gree Electric Appliances, Inc. of Zhuhai, China, People's Republic of
Xiaotong Cheng, Compressor and Motor Institute of Gree Electric Appliances, Inc. of Zhuhai, China, People's Republic of
Yusheng Hu, Compressor and Motor Institute of Gree Electric Appliances, Inc. of Zhuhai, China, People's Republic of

Keywords

finite element method, bearing wear, contact stress, rotary compressor

Abstract

The main bearing and sub bearing which support the crankshaft rotation often have wear in the rotary compressor, and the exceptional wear will cause a series of problems which contain the vibration, noises, frictional power rising and reliability reduced. The process of improving the actual exceptional wear problems of bearings is analyzed. And based on the finite element method (FEM), the results of the original and improved bearings are compared with each other; contact stress is chosen to be used to evaluate the wear condition of bearings. Then the influence of height, diameter and clearance of main bearing on the wear of the bearing is analyzed by the accelerated life test and the FEM simulation, and the feasibility of the bearing contact stress to evaluate the wear condition of bearings is further verified, at the same time it provides a theoretical basis for the design of compressor bearing.