双列圆锥滚子轴承动力学分析  

Dynamic Analysis of Double Row Tapered Roller Bearings

作　　者：胡广存 魏铁建[2] 邓四二[1] 贾永川 张雪[3] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]许昌职业技术学院机电工程汽车系,河南许昌461000 [3]南京林业大学机械电子工程学院,江苏南京210037

出　　处：《河南科技大学学报（自然科学版）》2014年第6期14-19,5,共6页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家"十二五"科技攻关基金项目(JPPT-ZCGX1-1);河南省科技创新杰出人才计划基金项目

摘　　要：基于滚动轴承动力学理论,建立了双列圆锥滚子轴承动力学分析模型。采用精细积分法和预估-校正Adams-Bashforth-Moulton多步法相结合的方法,对轴承非线性动力学微分方程进行求解。研究了双列圆锥滚子轴承的最大接触压力、滚子打滑率、滚子歪斜角以及轴承疲劳寿命等动态性能。分析结果表明:轴承的最大接触压力随轴向预紧量的增加呈先减小后增大的趋势,最佳预紧量随外载荷的增加而变大;滚子歪斜角随径向载荷的增加而变大,"压紧"侧的滚子歪斜角略微大于"放松"侧;轴承疲劳寿命随轴向预紧量的增加而增大直至最大值,随后迅速下降。Based on the dynamic theory of rolling bearings,the dynamic analytical model was established to describe double row tapered roller bearings. Fine integral method and predict-correct Adams-Bashforth-Moulton multi-step method were used to solve the nonlinear dynamic differential equations of bearings. The maximum contact pressure,the roller slip rate,the roller skew angle and the bearing fatigue life of the double row tapered roller bearings were researched. The results show that with the increase of the axial compression,the maximum contact pressure is first decreased and then increased. The optimal compression is increased with the increasing external load. The roller skew angle also becomes larger with the increase of radial load. And the roller skew angle of the impacted side is a little larger than the unfixed side. The bearing fatigue life is increased to the maximum with the increasing axial compression,and then decreased soon.

关 键 词：轴承动力学 双列圆锥滚子轴承 轴向预紧量 疲劳寿命 

分 类 号：TH133.33[机械工程—机械制造及自动化]