弹流润滑条件下的深沟球轴承径向刚度及油膜厚度分析  

Analysis on Radial Stiffness and Oil Film Thickness of Deep Groove Ball Bearings Under Elastohydrodynamic Lubrication Condition

作　　者：杨杰[1] 买买提明.艾尼 王晓亮[1] 武园园[1] 王国建[1] YANG Jie;GENI Mamtimin;WANG Xiaoliang;WU Yuanyuan;WANG Guojian(School of Mechanical Engineering,Xinjiang University,Urumqi 830049,China;State Key Laboratory of Structural Strength and Vibration,Xiran Jiaotong University,Xi,an 710049,China)

机构地区：[1]新疆大学机械工程学院,乌鲁木齐830049 [2]西安交通大学结构强度和振动国家重点实验室,西安710049

出　　处：《轴承》2018年第9期34-37,57,共5页Bearing

基　　金：国家自然科学基金项目(11772289);国家"九七三"计划(2011CB706602)

摘　　要：针对传统深沟球轴承弹流润滑条件下轴承径向刚度计算未考虑油膜润滑影响的问题,建立了深沟球轴承综合径向刚度的数学计算模型,基于C++编写计算轴承综合径向刚度和油膜厚度的程序,并分析了轴承径向载荷、转速及润滑油黏度对轴承综合径向刚度及套圈沟道与钢球的中心油膜厚度的影响。结果表明:随径向载荷的增大,综合径向刚度增大,中心油膜厚度减小;随润滑油黏度及轴承转速的增大,轴承综合径向刚度减小,中心油膜厚度增大。The effect of oil film lubrication is not considered in traditional calculation for radial stiffness ball bearings under elastohydrodynamic lubrication condition.A mathematical calculation model is established for synthetical radial stiffness of the bearings,and the program for calculation of synthetical radial stiffness and oil of the barings is wrote based on C++.The effects of radial load,rotational speed and viscosity of lubricating oil on integrated radial stiffness and center oil film thickness of ring raceway and steel ball are analyzed.The results show that the synthetical radial stiffness is increased and the central oil film thickness is decreased with the increase of radial load;the synthetical radial stiffness is decreased and the central oil film thickness is increased with the of lubricating oil and rotational speed.

关 键 词：深沟球轴承 弹流润滑 径向刚度 接触刚度 油膜刚度 

分 类 号：TH133.3[机械工程—机械制造及自动化] O313.7[理学—一般力学与力学基础]