四点接触球轴承摩擦力矩特性分析  

Characteristic Analysis on Friction Torque of Four-Point Contact Ball Bearings

作　　者：陈龙[1] 史朋飞[1] 李正国[1] 邱明[1] 夏新涛[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003

出　　处：《轴承》2013年第1期1-6,共6页Bearing

基　　金：国家自然科学基金资助项目(51075123);河南省教育厅自然科学研究计划项目(2011B460004);河南省杰出青年基金(114100510002);河南省高校科技创新人才支持计划项目(2009HASTIT008);洛阳市科技计划项目(1001040A);河南科技大学青年基金(2011QN06)

摘　　要：介绍了2种四点接触球轴承的摩擦力矩理论计算模型,采用不同模型计算同型号的轴承,对比分析可知,造成计算值差异的关键因素在于是否考虑轴承内部的几何结构参数。在考虑几何结构参数的计算模型中,影响最突出的是轴承实际接触角。还分析了加工精度对四点接触球轴承的实际接触角及其摩擦力矩的影响,并通过试验进行了验证。Two theoretical computing models for friction torque of four- point contact ball bearings are introduced. A specific four - point contact ball bearing is involved in the calculation according to different calculation methods and dif- ferent calculation values are obtained. The difference caused by different calculation methods lies in if geometrical pa- rameters are involved in calculation or not. In the model considering geometrical parameters, the most important factor that influences the calculation value of is actual contact angel. The influence of machining accuracy on actual contact angel and then on friction torque is analyzed. An additional friction torque model is established and specific test is de- signed to prove the theoretical analysis.

关 键 词：四点接触球轴承 接触角 摩擦力矩 计算模型 

分 类 号：TH133.331[机械工程—机械制造及自动化]