摘要
根据圆柱滚子轴承各零件间的几何关系,推导出轴承几何协调方程,将几何协调方程与载荷平衡方程联立进行迭代求解,建立基于载荷平衡与几何协调共同作用下轴承旋转精度的数学模型,研究了内圈滚道圆度误差谐波幅值、谐波阶次对轴承内圈径向跳动的影响。研究结果表明:随着内圈滚道圆度误差幅值增大,轴承内圈径向跳动增大;当轴承径向载荷增大时,内圈径向跳动变小;随着内圈滚道圆度误差阶次的变化,轴承内圈径向跳动呈现出波动,波动程度与轴承径向载荷有关;当轴承滚子个数与内圈圆度误差阶次呈整数倍时,内圈径向跳动最大。
According to the geometric relationships of cylindrical roller bearing parts, the geometric compatibility equation of the bearing is derived. Based on the load balance and geometric compatibility, the mathematical model of the rotation accuracy of the inner ring is established by iterative solving geometric compatibility equation and load balance equation. The effect of harmonic amplitude and order for roundness error of inner ring raceway on the radial runout of bearing inner ring is researched. The research results show that the radial runout of bearing inner ring increases with the harmonic amplitude of roundness error for inner ring raceway;When the radial load of bearing increases, the radial runout of inner ring becomes smaller. The radial runout of bearing inner ring fluctuates as the order of roundness error for bearing inner ring raceway changes. And the fluctuation degree is related to radial load of bearing. The value of radial runout is maximum when the number of roller bearing inner ring is integer times of the order of roundness error.
作者
周元坤
薛玉君
余永健
庞碧涛
ZHOU Yuan-kun;XUE Yu-jun;YU Yong-jian;PANG Bi-tao(College of Mechatronics Engineering, He’nan University of Science and Technology, He’nan Luoyang 471003, China;He’nan Key Laboratory for Machinery Design and Transmission System, He’nan University of Science and Technology, He’nan Luoyang 471003, China;Luoyang LYC Bearings Co., Ltd, State Key Laboratory of Aviation Precision Bearings, He’nan Luoyang 471039, China)
出处
《机械设计与制造》
北大核心
2019年第2期38-41,46,共5页
Machinery Design & Manufacture
基金
国家自然科学基金项目(51375148)
河南省基础与前沿技术研究计划(142300413217)
河南省高校科技创新团队支持计划(15IRTSTHN008)
关键词
几何协调
载荷平衡
径向跳动
圆度误差
旋转精度
Geometric Compatibility
Load Balance
Radial Runout
Roundness Error
Rotation Accuracy
作者简介
周元坤,(1992-),男,河南新乡人,硕士研究生,主要研究方向:轴承旋转精度;薛玉君,(1971-),男,河南焦作人,博士研究生,博士生导师,教授,主要研究方向:机械产品数字化设计与性能分析.
