重庆大学学报2018，Vol.41Issue(2)：29-36,8.DOI:10.11835/j.issn.1000-582X.2018.02.004
大型双排四点接触球轴承载荷分布影响因素研究
Research on load distribution influence factors of large-size double row four-point-contact ball bearing
摘要
Abstract
In order to research the load distribution of a large-size-double row four-point-contact ball bearing,first,the supper element method is used to model the contact between raceways and rolling elements,and the equivalent beam method is used to model the bolt.Then,a simplified finite element model for a large-size double row four-point-contact ball bearing is obtained and its correctness is verified through the results comparison of theoretic algorithm and empirical formula.Finally,the influence of the bolt pretension, the mounting surface flatness and the differences between pitch angles on the load distribution of the bearing is analyzed by the model.The results show that with the increase of the even bolt pretension,the maximum contact load of bearing increases firstly and then slightly decreases.The uneven bolt pretension causes the exacerbated fluctuations of the bearing contact load.The surface flatness errors cause sudden changes of the contact loading distribution.When the degree of pitch-control synchronization is negative,the contact load of bearing increases.关键词
有限元分析/变桨轴承/螺栓预紧力/载荷分布Key words
finite element analysis/pitch bearing/bolt pretension/load distribution分类
机械制造引用本文复制引用
杜静,张禄,杨显刚..大型双排四点接触球轴承载荷分布影响因素研究[J].重庆大学学报,2018,41(2):29-36,8.基金项目
中央高校基本科研业务项目资助(106112015CDJXY110006).Supported by the Fundamental Research Funds for the Central Universities (106112015CDJXY110006). （106112015CDJXY110006）
