Effect of roller dynamic unbalance on cage stress of high-speed cylindrical roller bearing

被引：14
作者：
Cui, Yongcun [1 ]
Deng, Sier [1 ,2 ]
Ni, Yanguang [3 ]
Chen, Guoding [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mech Engn, Xian, Shaanxi, Peoples R China
[2] Henan Univ Sci & Technol, Luoyang, Peoples R China
[3] Henan Univ Sci & Technol, Sch Mechatron Engn, Luoyang, Peoples R China
来源：
INDUSTRIAL LUBRICATION AND TRIBOLOGY | 2018年 / 70卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Cage stress; High-speed cylindrical roller bearing; Roller dynamic unbalance; WEAR;
D O I：
10.1108/ILT-01-2018-0042
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Purpose The purpose of this study is to investigate the effect of roller dynamic unbalance on cage stress. Design/methodology/approach Considering the impact of roller dynamic unbalance, the dynamic analysis model of high-speed cylindrical roller bearing is established. And then the results of dynamic model are used as the boundary conditions for the finite element analysis model of roller and cage to obtain the cage stress. Findings Roller dynamic unbalance affects the contact status between roller and cage pocket and causes the overall increase in cage stress. The most significant impact on cage stress is roller dynamic unbalance in angular direction of roller axis, followed by radial and axial directions. Smaller radial clearance of bearing and a reasonable range of pocket clearance are beneficial to reduce the impact of roller dynamic unbalance on cage stress; the larger cage guide clearance is a disadvantage to decrease cage stress. The impact of roller dynamic unbalance on cage stress under high-speed condition is greater than that in low-speed conditions. Originality/value The research can provide some theoretical guidance for the design and manufacture of bearing in high-speed cylindrical roller bearing.
引用
收藏
页码：1580 / 1589
页数：10
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