点支撑扇形推力轴承结构参数对润滑特性影响分析  

Structural Parameters Analysis of Point Support Sector Thrust Bearing on Lubrication Characteristics

作　　者：冯毅 张翀 杜灿阳 罗碧 佘柯 FENG Yi;ZHANG Chong;DU Canyang;LUO Bi;SHE Ke(Hunan SUND Technological Corporation,Xiangtan 411101,China;Shanghai Electric Group Shanghai Electric Machinery Co.,Ltd.,Shanghai 201815,China;Guangdong GDH Pearl River Delta Water Supply Co.,Ltd.,Guangzhou 511466,China)

机构地区：[1]湖南崇德科技股份有限公司,湖南湘潭411101 [2]上海电气集团上海电机厂有限公司,上海201815 [3]广东粤海珠三角供水有限公司,广州511466

出　　处：《机械工程师》2023年第11期117-120,共4页Mechanical Engineer

摘　　要：依据动压润滑理论,建立了瓦块周向偏支系数、瓦块内径等主结构参数为优化目标的点支撑扇形推力轴承的数学模型。采用有限元方法计算瓦块周向偏支系数、瓦块内径等主结构参数对轴承润滑性能的影响。结果表明:随着瓦块周向偏支系数增加,最小膜厚、最大膜压等基本不变;温度显著降低,油膜压力的均匀性有所降低;最小膜厚随着瓦块内径的增大而减小。Based on the theory of dynamic pressure lubrication,a mathematical model of point-supported sector thrust bearings with the main structural parameters such as the circumferential deflection coefficient of the tile and the inner diameter of the tile is established for optimization.The finite element method is used to calculate the influence of main structural parameters such as the circumferential deflection coefficient of the tile and the inner diameter of the tile on the lubrication performance of the bearing.The results show that with the increase of the circumferential deflection coefficient of the tile,the minimum film thickness and maximum film pressure are basically unchanged.The temperature is significantly reduced,and the uniformity of the oil film pressure is all reduced.The minimum film thickness decreases with the increase of the inner diameter of the tile.

关 键 词：点支撑扇形推力轴承 周向偏支系数 瓦块内径 润滑性能 

分 类 号：TM303.5[电气工程—电机]