Influence of geometric and environmental factors on lubrication performance of thrust bearing of shielded motor main pump
JIA Qian1,2,3*, YANG Shuai4, LIU Zhe1, LI Sihan 1, YANG Jianchen4, CAI Long5, YUAN Xiaoyang2
1. Department of Mechanical Engineering, Xi′an Jiaotong University City College, Xi′an, Shaanxi 710018, China; 2. Xi′an Jiaotong University Institute of Lubrication Theory and Bearings, Xi′an, Shaanxi 710049, China; 3. Engineering Research Center of Robot and Intelligent Manufacturing, Universities of Shaanxi Province, Xi′an Jiaotong University City College, Xi′an, Shaanxi 710018, China; 4. School of Mechanical and Precision Instrument Engineering, Xi′an University of Technology, Xi′an, Shaanxi 710048, China; 5. Engineering Research Center of RCP Heilongjiang Province, Harbin, Heilongjiang 150060, China
Abstract：In order to more accurately grasp the use effect of the thrust bearing of the main pump of shielded motor during the design process, and understand the influence of different geometric and environmental factors on its lubrication performance. The working conditions and structure of the thrust bearing of the shielded motor main pump, and established the thrust bearing lubrication performance calculation model were analyzed, and its solution method is realized on algorithm. The influence of geometrical and environmental parameters such as radial deflection coefficient, number of watts, lubricant, oil supply temperature, and axis inclination angle on the lubrication performance of the thrust bearing of the shielded motor main pump is analyzed through theoretical calculations. The research results show that the radial deflection coefficient has a greater impact on the minimum oil film thickness, temperature rise, and power consumption. The flow rate of 6 tiles is 1.73 times that of 8 tiles, and the power consumption of 8 tiles is 1.85 times that of 6 tiles. The lubrication performance value of the water lubrication is significantly lower than that of the oil lubrication. Changing the oil supply temperature has a significant impact on the lubrication performance of the thrust bearing. After the axis is tilted, the minimum oil film thickness of the thrust bearing decreases, temperature rise increases, the lubricant flow rate decreases, and the power consumption decreases. Therefore, the selection of radial deflection coefficient is very important in the design. From the perspective of reducing the power consumption of the bearing, the structure of 6 tiles has advantages over that of 8 tiles. The temperature rise and power consumption of the bearing can be greatly reduced by using water lubrication.
贾谦,*,杨帅,刘哲,李思晗,杨建晨,蔡龙,袁小阳. 几何和环境因素对屏蔽电机主泵推力轴承润滑性能的影响[J]. 排灌机械工程学报, 2023, 41(5): 534-540.
JIA Qian,*,YANG Shuai,LIU Zhe,LI Sihan,YANG Jianchen,CAI Long,YUAN Xiaoyang. Influence of geometric and environmental factors on lubrication performance of thrust bearing of shielded motor main pump. Journal of Drainage and Irrigation Machinery Engin, 2023, 41(5): 534-540.
