宽裕润滑参数下滚动轴承润滑特性研究

Rolling bearing is a key supporting component for major equipment such as precision machine tools and special vehicles. Lubrication performance directly determines the stable serving performance of the bearing, which in turn affects the performance indicators of major equipment. In this paper, the operating characteristics were studied based on the theoretical simulation and experimental analysis for the oil-air lubrication rolling bearings under the wide-range lubrication parameters. Firstly, according to the multi-phase flow analysis technology, the flow state of oil and gas in the high-speed angular contact ball bearing was studied, and a basic law of oil and gas flow inside the bearing was revealed. Then, an experiment platform was designed to validate the rolling bearing lubrication performance. The influence of different lubrication parameters on the bearing temperature was experimentally analyzed, the optimal bearing lubrication parameters with the smallest temperature rise at a specific rotation speed were obtained, and the influence of the different lubrication parameters on its service performance was confirmed. The research results provide a basis for the service performance analysis of rolling bearings under wide-range lubrication conditions.