某后桥半轴密封垫的选用与半轴螺栓力矩性能的影响分析

The Selecting of Seal Spacer and Torque Analysis of the Shaft Bolt for a Rear Drive Axle

后桥总成是整车的重要组成部分,通常全浮式轮端密封主要依靠油封密封,为了辅助密封,防止半轴与轮毂结合面渗油,则在两者之前增加一层密封垫作为一种辅助密封方式,如何选择密封垫需要进行验证分析,最终选定合适的密封垫。既能起到辅助密封的作用,又不会因半轴密封垫的材质等性能因素影响原半轴螺栓的拧紧力矩的性能,并为后期半轴密封垫设计提供一定的参考依据。

Rear drive axle is one of the most important parts of the vehicles , we normally apply oil seal to the full-floating wheel end to avoid leaking oil. And also , we add a paper spacer to the joint of sh-,Lft and wheel hub to enhance sealing effect. How to select a proper paper spacer is also proved by the analysis of the experiment. Se- lecting a proper paper spacer will be very much helpful to avoid leaking oil and the material of paper spacer will not affect the torque of the shaft bolt. It also makes a reference to designers of this field.