圆弧兜孔圆柱滚子轴承的动态不稳定规律特性研究  

Dynamic unstable law characteristics of cylindrical roller bearings with arc cage pocket

作　　者：刘延斌[1,2] 邱明[1] 张占立[1,2] LIU Yanbin;QIU Ming;ZHANG Zhanli(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Henan Provincial Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing,Henan University of Science and Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学机电工程学院,洛阳471003 [2]河南科技大学机械装备先进制造河南省协同创新中心,洛阳471003

出　　处：《振动与冲击》2019年第5期53-59,共7页Journal of Vibration and Shock

基　　金：河南省自然科学基金(182300410273)

摘　　要：以具有圆弧兜孔保持架的圆柱滚子轴承为对象,研究其高速轻载工况下滚子打滑和保持架涡动规律。利用牛顿-欧拉动力学及接触力学理论,建立了轴承的动力学模型,考虑滚子直径的加工误差,利用龙格库塔法对轴承进行了动力学数值仿真,分析了兜孔的弧面偏置角、弧面半径对滚子打滑和保持架涡动的影响规律,结果表明,高速轻载工况下兜孔的弧面偏置角、弧面半径对滚子打滑和保持架涡动的影响显著,当弧面偏置角为锐角且弧面半径显著大于滚子半径时,可有效抑制滚子打滑和保持架涡动。A cylindrical roller bearing with arc cage pocket was taken as the study object,its roller skidding and cage whirling laws under conditions of high-speed and light-load were investigated.Using Newton-Euler dynamics and the contact mechanics theory,the bearing’s dynamic model was built considering machining error of roller diameter.Runge-Kutta method was used to do dynamic numerical simulation for the bearing to analyze effect laws of pocket hole’s arc surface offset angle and arc surface radius on roller skid and cage whirl.The results showed that under conditions of high-speed and light-load,pocket hole’s arc surface offset angle and arc surface radius affect roller skid and cage whirl significantly;when arc surface offset angle is an acute one and arc surface radius is obviously larger than roller radius,roller skid and cage whirl can be suppressed effectively.

关 键 词：圆柱滚子轴承 保持架兜孔 动力学模型 滚子打滑 保持架涡动 

分 类 号：TH133.3[机械工程—机械制造及自动化]