摘要
兜孔作为轴承保持架的关键结构,其形状直接影响轴承保持架的力学性能。为提高高速轻载机器人轴承保持架的性能,延长其使用寿命,本文以6200型深沟球轴承为研究对象,采用SolidWorks软件建立了轻载机器人轴承保持架三维模型,运用其有限元分析功能对保持架的强度和刚度进行分析,并在ADAMS环境中进行动态验证。研究结果表明,对于材料、大小相同而兜孔形状(圆形、球形、方形)不同的轴承保持架,在承受相同大小、均匀分布的径向载荷的情况下,圆形兜孔保持架的强度和刚度最大;圆形兜孔保持架和方形兜孔保持架的最大应力和位移都出现在兜孔与保持架两端面之间,球形兜孔保持架最大应力和位移出现在兜孔内部。可在对应部位进行加厚或改用更好的材料来优化其力学性能。此研究可为高速轻载机器人轴承保持架力学性能的优化提供参考。
Pocket hole is the key structure of the bearing cage,and the shape of the pocket hole directly affects the mechanical properties.In order to improve the performance and extend the service life of the bearing cage of high-speed light-load robots,this paper takes the 6200 deep groove ball bearing as the research object and establishes a three-dimensional model of the bearing cage by using SolidWorks software.Finite element analysis is used to analyze the strength and stiffness of the cage and dynamically verify it in the Adams environment.The results show that for bearing cages of the same material and size with different pocket shapes(round,spherical,square),the strength and stiffness of the round pocket cage are maximized when bearing the radial load of the same size and uniform distribution.The maximum stress and displacement of both the round pocket hole cage and the square pocket hole cage appear between the pocket hole and the two end faces of the cage.The maximum stress and displacement of the spherical pocket hole cage appear inside the pocket hole.The corresponding parts can be thickened or replaced with better materials to optimize their mechanical properties.This study can provide a reference for the optimization of the mechanical properties of bearing cages of high-speed light-load robots.
作者
姚博
YAO Bo(School of Mechanical and Vehicle Engineering,Changsha University of Science and Technology,Changsha 410114,China)
出处
《机械》
2025年第12期75-80,共6页
Machinery
关键词
高速轻载机器人
轴承保持架
有限元分析
兜孔形状
high-speed light-load robots
bearing cage
finite element analysis
pocket hole shape
