四点接触球轴承重要结构参数分析方法  

Analysis method of important structural parameters of four-point contact ball bearing

作　　者：王燕霜 张晨旭 王明伟 王子君 王高峰 栗文彬 张书玉 WANG Yanshuang;ZHANG Chenxu;WANG Mingwei;WANG Zijun;WANG Gaofeng;LI Wenbin;ZHANG Shuyu(Faculty of Mechanical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Luoyang Bearing Science and Technology Co.,Ltd.,Luoyang 471039,China;Yantai Tiancheng Machinery Co.,Ltd.,Yantai 264006,China;Shandong Bote Bearing Co.,Ltd.,Liaocheng 252600,China)

机构地区：[1]齐鲁工业大学(山东省科学院)机械工程学部,济南250353 [2]洛阳轴研科技有限公司,洛阳471039 [3]烟台天成机械有限公司,烟台264006 [4]山东博特轴承有限公司,聊城252600

出　　处：《机械传动》2025年第4期16-24,共9页Journal of Mechanical Transmission

基　　金：国家自然科学基金项目(52075274);山东省重点研发计划(重大科技创新工程)(2022CXGC010304);山东省科技型中小企业创新能力提升工程(2023TSGC0356,2023TSGC0374);山东省重点扶持区域引进急需紧缺人才项目(2023JXJQRC);聊城市重大创新工程(2021ZD04);泰山产业创新领军人项目(tscs20231217)。

摘　　要：【目的】基于四点接触球轴承接触力学特性分析,对轴承重要结构参数(接触角、沟曲率半径系数和径向游隙)进行设计,并综合考虑轴承结构参数对轴承滚道次表面应力的影响,旨在为四点接触球轴承的设计提供新的参考。【方法】通过建立高精度四点接触球轴承多体接触动力学模型,采用有限元分析方法对接触力学模型轴承滚道次表面应力和淬硬层深度的分析,进一步验证了设计的合理性。【结果】结果表明,初始接触角越大,轴承承载能力越大,次表面应力峰值和所需最小淬硬层深度越小,但易发生椭圆截断,建议初始接触角选取45°~50°中较小值;沟曲率半径系数越小,轴承承载能力越大,次表面应力和最小淬硬层深度越小,建议沟曲率半径系数在0.52~0.53范围内取值;游隙减小,内圈左侧应力微小增大,右侧应力减小,最佳游隙为-0.03 mm。[Objective] Based on the analysis of the contact mechanics characteristics of four-point contact ball bearings,the important structural parameters of the bearings,including the contact angle,groove curvature radius coefficient,and radial clearance,were designed,and the influence of the bearing structural parameters on the sub-surface stress of the bearing raceway was comprehensively considered to provide new reference for the design of four-point contact ball bearings.[Methods] By establishing a high-precision multi-body contact dynamics model of four-point contact ball bearings and using the finite element analysis method to analyze the subsurface stress and hardened layer depth of the bearing raceway,the rationality of the design was further verified.[Results] The results show that the larger the initial contact angle is,the larger the bearing capacity will be,the smaller the sub-surface stress peak and the required minimum hardened layer depth will be,but the ellipse truncation will be easier to occur.It is recommended to select the smaller value of 45°-50° as the initial contact angle.The smaller the coefficient of groove curvature radius is,the larger the bearing capacity will be,the smaller the sub-surface stress and the minimum hardened layer depth will be,and the recommended value of groove curvature radius coefficient shall be in the range of 0.52-0.53.As the clearance decreases,the stress on the left side of the inner ring increases slightly,while the stress on the right side decreases.The optimal clearance is -0.03 mm.

关 键 词：四点接触球轴承 载荷分布 力学性能 结构参数 次表面应力 

分 类 号：TH122[机械工程—机械设计及理论]