圆锥滚子轴承外圈过盈配合量对装配高的影响  

Influence of Outer Ring Interference Fit on Assembly Height of Tapered Roller Bearings

作　　者：孙朝阳 周佶俊 时大方 王凯 刘国仓 SUN Chaoyang;ZHOU Jijun;SHI Dafang;WANG Kai;LIU Guocang(Zhejiang Tianma Bearing Group Co., Ltd., Huzhou 313219, China;Shentong Nanche (Shanghai) Rail Transit Vehicle Maintenance Co., Ltd., Shanghai 201800, China)

机构地区：[1]浙江天马轴承集团有限公司,浙江湖州313219 [2]申通南车(上海)轨道交通车辆维修有限公司,上海201800

出　　处：《轴承》2021年第2期14-16,共3页Bearing

摘　　要：以33118圆锥滚子轴承为例,介绍了传统轴承过盈配合量与装配高变化量关系的数值计算方法,经与测量结果对比,误差较大(32%)。分析其主要原因为计算中将壳体、外圈等效转化为规则圆环,与实际情况不符,故建立包含壳体、轴承实际结构的有限元模型,计算轴承过盈配合量与装配高变化量的关系,与测量结果误差为2.9%,可以满足工程应用需求。Taking the 33118 tapered roller bearings as examples,the traditional numerical calculation method is introduced for relationship between interference fit and change of assembly height of the bearings.After comparing with measuring results,the error is large(32%).Through analysis,the main reason is that the shell and outer rings are equivalent to regular rings during calculation,which is be inconsistent with actual situation,so a finite element model including actual structure of shell and bearings is established,and the relationship between interference fit and change of assembly height of the bearings is calculated.Comparing with measuring results,the error is 2.9%,which can meet the needs of engineering applications.

关 键 词：滚动轴承 圆锥滚子轴承 过盈配合 装配高 数值计算 测量 有限元分析 

分 类 号：TH133.332[机械工程—机械制造及自动化] O242.21[理学—计算数学]