高速微型球轴承结构设计分析  

Structure Design of High-speed Miniature Ball Bearing

作　　者：顾金芳 赵利锋 

机构地区：[1]上海集优机械股份有限公司轴承技术中心,上海201108

出　　处：《工业控制计算机》2021年第4期104-106,共3页Industrial Control Computer

摘　　要：基于拟静力学分析理论综合分析了轴承内部的球数、球径、接触角、沟道曲率系数等几何结构参数和轴向预载荷、转速等工况条件对轴承动态性能的影响,并对微型轴承的旋滚比、球与套圈的接触应力及寿命等特性进行了设计分析。结果表明:轴承内部的几何结构参数对轴承动态性能的影响较大,在轴承的设计中,适当增加球数、选择较大的球径有利于减小轴承内部的接触应力、延长轴承寿命,较小的沟道曲率半径系数能显著改善轴承承载性能;轴向预载荷对轴承的寿命影响较大,应慎重选取。How structure parameters of miniature ball bearings such as ball number,ball diameter,contact angle,groove radius affects the working performances is analyzed using a quasi-static mode for miniature ball bearing.Taking the preload and the running velocity in consider,miniature ball bearing is designed by analyzing many parameters including bearing ratio of revolution and rolling,contact stress and bearing life which is calculated through a computer program.The results indicate that miniature ball bearings having bigger ball number,bigger ball diameter and smaller inner race groove radius can get better performances;velocity and preload have a great impact on the bearing life.

关 键 词：微型轴承 结构设计 拟静力学 

分 类 号：TH133.3[机械工程—机械制造及自动化]