带轮和轴承外圈不同温度下配合的有限元分析  

Finite Element Analysis of Interference Fit between Pulley and Bearing Outer Ring at Different Temperature

作　　者：王旭强[1] 姜晓红 张润萍[3] 闫献国[1] 宋建军[1] 王延辰[1] 

机构地区：[1]太原科技大学机电工程学院,山西太原030024 [2]山西平阳重工有限责任公司,山西侯马043003 [3]国营东华机械厂,山西大同037036

出　　处：《机械工程与自动化》2011年第4期24-26,共3页Mechanical Engineering & Automation

摘　　要：在机械传动中,带轮和轴承外圈是过盈配合在一起的。由于带轮材质为合金铝,轴承外圈材质为合金结构钢,当温度升高时,铝的膨胀系数大于钢,带轮和轴承外圈之间的过盈配合量会变小,当过盈配合量减小到一定程度时,带轮和轴承外圈之间就有可能发生相对滑动,造成接触面的磨损。利用ABAQUS有限元软件模拟带轮和轴承外圈在不同温度场下的过盈配合量及接触面间的应力分布,通过得出的数据来改进模型的设计尺寸,增大初始的过盈配合量,从而提出改善措施,提高其使用寿命。Pulley and bearing outer ring are connected under interference fit in mechanical transmission.Pulley is made of aluminum alloy,and bearing outer ring is made of structural steel.When the working temperature rises,the thermal expansion coefficient of aluminum alloy will be larger than steel,which will make the magnitude of interference decrease.If the magnitude of interference is less than the allowable value,relative sliding between pulley and bearing outer ring will occour,and wear will happen.Interference fit and contact stress distribution are analyzed by use of ABAQUS finite element software for pulley and bearing outer ring at different temperature field.Based on the simulation result,the reasonable magnitude of interference is got,which can increase the connection reliability.

关 键 词：带轮 轴承外圈 ABAQUS软件 温度场 

分 类 号：TH133.3[机械工程—机械制造及自动化] TH131.7