轮毂轴承外圈凸缘安装面凹度设计  

Design for Concavity of Mounting Surface of Hub Bearing Outer Ring Flange

作　　者：崔海峰[1] 童慧 马洪启[1] CUI Haifeng;TONG Hui;MA Hongqi(Pan Asia Technical Automotive Center Co., Ltd., Shanghai 200120, China)

机构地区：[1]泛亚汽车技术中心有限公司,上海200120

出　　处：《轴承》2021年第8期26-29,共4页Bearing

摘　　要：针对某轮毂轴承运行过程中出现异常噪声的问题,分析其主要原因为受螺栓夹紧力时靠近外圈凸缘的密封圈安装面及沟道产生变形,造成密封性能变差,异物进入轴承使沟道发生剥落。提出在外圈凸缘安装面进行凹度设计,并基于MSC.MARC建立有限元模型分析不同凹度下外圈密封圈安装面和沟道的变形,结果表明外圈凸缘安装面凹度有助于改善外圈安装变形,最佳凹度为30~50μm,并通过试验验证了设计的合理性。Aimed at abnormal noise during operation of a hub bearing,the main reason is that the mounting surface of sealing ring and raceway close to outer ring flange are deformed under clamping force of bolt.The sealing performance becomes worse,and the foreign matter enters bearing and raceway,resulting in spalling.The concavity design is proposed for mounting surface of outer ring flange.A finite element model based on MSC.MARC is established to analyze the deformation of mounting surface of outer sealing ring and raceway under different concavities.The results show that the concavity of mounting surface of outer ring flange is helpful to improving the deformation of outer ring,and the optimal concavity is 30~50μm.The rationality of the design is verified by experiment.

关 键 词：滚动轴承 轮毂轴承 外圈 凸缘 安装面 有限元法 

分 类 号：TH133.331[机械工程—机械制造及自动化] U463.343[机械工程—车辆工程]