摘要
为优化汽车轮毂轴承唇形密封圈的结构,在ANSYS有限元分析软件中建立其有限元模型,研究轴向过盈量、弹簧以及侧唇倒角对唇形密封圈密封性能的影响。研究结果表明:轴向过盈量对唇形密封圈的密封性能影响较大,当轴向过盈量小于0.5 mm时,随着轴向过盈量的增大,唇形密封圈的密封性能变好,当轴向过盈量大于0.5 mm时,随着轴向过盈量的增大,唇形密封圈的密封性能变差;与带弹簧的密封圈相比,不带弹簧的密封圈的最大等效应力、应变和接触压力的出现位置发生改变,且其最大值皆小于带弹簧密封圈的,因此带弹簧唇形密封圈的密封性能更好;与上侧唇倒角相比,下侧唇倒角对密封圈等效应力分布的影响更大,对密封性能的影响更加明显。
The finite element model of automotive wheel hub bearing lip seal was established by using ANSYS,in order to optimize the structure of the lip seal.The influence of axial interference,spring and the chamfer of li p’s side on sealing performance were researched.The results show that the axial interference has great influence on the sealing performance of lip seal.When the axial interference is less than 0.5 mm,the sealing performance of lip seal is improved by increasing the axial interference.However,when the axial interference is greater than 0.5 mm,the increasing of the axial interference results in poor sealing performance.The location of maximum Von-mises stress,Von mises strain and contact pressure of the the lip seal without spring is changed and their values are reduced compared with the lip seal with spring.Therefore,the lip seal with spring has a better sealing performance.Compared with the chamfer of upper li p’s side,the chamfer of lower li p’s side has greater influence on the equivalent stress distribution of the lip seal,and has a more obvious effect on the sealing performance.
作者
胡永乐
邓四二
李影
张文虎
黄晓敏
HU Yongle;DENG Sier;LI Ying;ZHANG Wenhu;HUANG Xiaomin(School of Mechatronics,Henan University of Science and Technology,Luoyang Henan 471003,China;Collaborative Innovation Center of Major Machine Manufacturing in Liaoning,Dalian Liaoning 116024,China;Cixing Group Co.,Ltd.,Ningbo Zhejiang 315301,China;College of Mechanical Engineering,Chongqing Industry Polytechnic College,Chongqing 401120,China)
出处
《润滑与密封》
CAS
CSCD
北大核心
2018年第9期54-61,共8页
Lubrication Engineering
基金
国家自然科学基金项目(U1404514)
河南省杰出人才创新基金项目(144200510020)
关键词
汽车轮毂轴承
唇形密封圈
过盈量
密封性能
automotive wheel hub bearing
lip seal
interference
sealing performance
