单排四点接触球轴承的非平面滚道设计研究  

Research on Non-Plane Raceway Design of Single Row Four-Point Contact Ball Bearings

作　　者：丁崯珂 陈观慈[1] 张明乾 刘铭涵 DING Yin-ke;CHEN Guan-ci;ZHANG Ming-qian;LIU Ming-han(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650550)

机构地区：[1]昆明理工大学机电工程学院,云南昆明650550

出　　处：《制造业自动化》2025年第4期147-157,共11页Manufacturing Automation

摘　　要：转盘轴承在工作中承受巨大的轴向力和倾覆力矩的作用,使得载荷常集中于远离倾覆力矩轴线的沟道,导致这些位置的沟道容易出现塑性变形或疲劳损伤,严重影响轴承的承载能力和使用寿命。为此,提出了一种非平面滚道的转盘轴承。首先,通过矢量表达的方法建立任意形状滚道的转盘轴承力学计算模型对其进行理论分析,并对传统圆形滚道的载荷分布进行寿命最大优化,通过分解调控得到最佳的非平面滚道廓线,对比非平面滚道与传统圆形滚道下的载荷分布,然后通过有限元仿真验证并考虑套圈变形修正非平面滚道。结果表明:非平面滚道的转盘轴承比传统圆形滚道的转盘轴承最大载荷明显降低,载荷分布更加均匀,寿命提高了8%~15%。为均匀和降低转盘轴承滚道接触载荷提供了一种新思路。The rotor bearing is subjected to huge axial force and overturning moment in the work,causing the load concentrated often in the channel away from the overturning moment axis,resulting in the channel at these positions prone to plastic deformation or fatigue damage,seriously affecting the bearing capacity and service life.Therefore,a kind of non-planar raceway turntable bearing is proposed.Firstly,the mechanical calculation model of turntable bearing with arbitrary shape raceway is established by vector expression method for theoretical analysis,and the load distribution of traditional circular raceway is optimized for maximum life.The optimal non-plane raceway profile is obtained through decomposition and regulation,and the load distribution under non-plane raceway and traditional circular raceway is compared.Then the non-plane raceway is verified by finite element simulation and corrected considering the ring deformation.The results show that the maximum load of the non-flat raceway turntable bearing is significantly lower than that of the traditional circular raceway turntable bearing,the load distribution is more uniform,and the service life is increased by 8%~15%.This paper provides a new way to even and reduce the contact load of the raceway of the turntable bearing.

关 键 词：单排四点接触 非平面滚道 矢量法 寿命优化 有限元分析 

分 类 号：TH122[机械工程—机械设计及理论] TH133.3