空心圆柱滚子轴承刚度分析  

Stiffness Analysis of Hollow Cylindrical Roller Bearings

作　　者：李伟建[1] 潘存云[1] 王荣吉[1] 

机构地区：[1]国防科学技术大学,长沙410073

出　　处：《中国机械工程》2009年第7期795-798,共4页China Mechanical Engineering

基　　金：中国博士后科学基金资助项目(20080441284)

摘　　要：从空心圆柱滚子轴承变形协调关系出发,通过受力分析,建立各滚子载荷和外负荷的力学平衡方程,再运用当量弹性模量的方法,由帕姆格林公式确定负荷与变形间的关系式,求解了空心圆柱滚子轴承的负荷分布,据此导出了空心圆柱滚子轴承刚度的计算公式,并深入地分析了滚子空心度、外负荷、轴承转速和滚子数等对刚度的影响规律。研究结果表明:空心圆柱滚子轴承的刚度随空心度的增大而减小,随滚子个数的增加而增大,且外负荷和轴承转速会根据滚子的不同空心度表现出不同的变化规律。The paper at first studied the elastic deformation relationship between each roller of the hollow cylindrical roller bearing; and the equilibrium equation between the load of the individual rollers and external load was presented by static analysis; then according to the method of valid elastic modulus and Palmgren formula, the calculation formula between load and elastic deformation was determined. Through solving the three equations, the load distribution of hollow cylindrical roller bearings was calculated. Based on the values of load distribution, the stiffness formula of hollow cylindrical roller bearings had been deduced. The paper deeply analyzed the effects of hollow ratio of roller, external load, rotating speed and roller number on stiffness. The results show that the stiffness of hollow cylindrical roller bearings is minishing with the increasing of hollow ratio; it becomes bigger when the roller number grows; and as to external load and rotating speed, it reflects different rules according to different hollow ratio.

关 键 词：空心圆柱滚子轴承 载荷分布 当量弹性模量 刚度 

分 类 号：TH133.33[机械工程—机械制造及自动化]