角接触球轴承摩擦力矩波动性分析  

Analysis on the Friction Torque Fluctuation of Angular Contact Ball Bearings

作　　者：邓四二[1,2,3] 李兴林[2] 汪久根[1] 王勇[3] 滕弘飞[4] 

机构地区：[1]浙江大学机械设计研究所,杭州310027 [2]杭州轴承试验研究中心有限公司,杭州310022 [3]河南科技大学机电工程学院,洛阳471003 [4]大连理工大学机械工程学院,大连116024

出　　处：《机械工程学报》2011年第23期104-112,共9页Journal of Mechanical Engineering

基　　金：国家'十一五'科技攻关(JPPT-115-189);河南科技大学博士基金(09001398);国家自然科学基金(50775202)资助项目

摘　　要：针对低摩擦力矩角接触球轴承,利用能量守恒定律,研究角接触球轴承零件工作表面的波纹度对轴承摩擦力矩波动性的影响,从理论上对角接触球轴承零件工作接触表面的波纹度幅值、谐波阶次与轴承摩擦力矩波动性的关系进行分析,给出影响角接触球轴承摩擦力矩波动性的内、外滚道和钢球工作表面的主要波纹度谐波阶次和相应的激振频率,并试验验证。研究结果表明:内外套圈滚道的kZ次、kZ/2次谐波以及两种不同谐波之和或之差等于kZ次的谐波阶次是激励角接触球轴承摩擦力矩波动性的主要谐波阶次,外滚道激励谐波对应的激振频率为kZ(nc ne),内滚道激励谐波对应的激振频率为kZ(ni nc);钢球工作表面波纹度的偶次谐波对角接触球轴承的摩擦力矩波动性起激励作用,钢球工作表面波纹度的奇次谐波对角接触球轴承的摩擦力矩波动性没有影响,钢球激励谐波对应的激振频率为2 knb。该研究为低摩擦力矩角接触球轴承加工工艺参数控制提供理论依据。Aiming at low friction torque angular contact ball bearings,based on the law of energy conservation,the effect of waviness of bearing working surfaces upon the friction torque fluctuation is investigated.The relationships between the amplitude and harmonic orders of waviness of bearing working surfaces and the fluctuation of bearing friction torque are analyzed theoretically,finally the main waviness harmonic orders and corresponding excited frequency of the inner raceway,outer raceway and ball working surfaces are given and verified by experiment.The results show that the harmonic orders of inner raceway and outer raceway equal,and the sum or difference of two different harmonic orders comes up to,which are the primary harmonic orders to stimulate the fluctuation of bearing friction torque.The harmonic orders exciting frequency of outer raceway equal and the inner raceway is.The even harmonic orders of waviness of ball working surface make an exciting effect on the fluctuation of bearing friction torque,and the odd harmonic orders make no effect.The corresponding excited frequency of excited harmonic orders is.The research provides theoretical basis to control the processing parameter of the low friction torque angular contact ball bearings.

关 键 词：角接触球轴承 摩擦力矩 波动性 波纹度 

分 类 号：TG156[金属学及工艺—热处理]