双列圆锥滚子轴承滚子大端-引导边润滑接触分析  

Lubricated Contact Analysis of Roller Large End-Flange in Double-Row Tapered Roller Bearing

作　　者：胡浪[1] 王文中[1] 赵自强[1] 孔凌嘉[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081

出　　处：《摩擦学学报》2013年第1期22-28,共7页Tribology

基　　金：国家重点基础研究发展规划项目(973)(2011CB706602);国家自然科学基金(50975029);新世纪优秀人才支持计划资助~~

摘　　要：针对铁路客车中使用的双列圆锥滚子轴承,发展了一个系统的计算模型以模拟滚子大端与引导边间的润滑接触状态.首先通过理论分析确定滚子大端与内圈挡边的接触点位置和滚动体的自转与公转转速,分别得出二者在接触点的滑动速度;然后考虑滚子的离心力,通过求解内圈位移控制方程,计算轴承的载荷分布,并分别求出滚子与外滚道、内滚道以及引导边的作用力;最后建立润滑分析模型,对圆锥滚子大端与引导边的接触进行润滑分析计算,实现滚子大端与引导边接触的润滑模拟,并研究了滚子大端球面半径、工况条件等对润滑性能的影响.In this paper, a systematic analysis model is developed to simulate the lubricated contact behaviors between roller large end and guide flange of inner ring in a double - row tapered roller bearing used in railway coaches. First, the location of contact point between roller large end and flange, the orbital and spinning speeds of the roller are determined theoretically in order to obtain the sliding velocities of the two contacting components. Then, by solving the governing equations of deflections of the inner ring, the load distribution in bearing is calculated with centrifugal force considered, as a consequence, the contact forces of roller - outer raceway, roller - inner raceway and roller large end - flange are obtained. At last, a lubrication analysis model is developed to analyze the contact formed between roller large end and inner ring flange, and the effects of spherical radius of roller large end and operating conditions on lubrication performance are investigated.

关 键 词：双列圆锥滚子轴承 大端-挡边接触 载荷分布 润滑性能 

分 类 号：TH117.2[机械工程—机械设计及理论]