万向节轴承疲劳寿命分析

Universal Joint Bearing Life Analysis

万向节轴承是一种比较特殊的滚针轴承类型,其应用运动特性为往复摆动运动。作为商用车传动系统中的重要零部件—传动轴的核心部件,长期以来,对于万向节轴承疲劳寿命的研究非常缺乏,对影响万向节轴承疲劳寿命的因素也没有一个清晰的,理论结合实际的归纳;另外对于此类轴承也缺乏一套系统的、科学的、可靠的疲劳寿命计算方法。工程人员在分析万向节失效,改善万向节疲劳寿命和性能,万向节设计选型及传动轴设计计算这些环节都遇到了很多问题。这些问题很有可能会成为未来整车设计中的短板和缺陷。本文就万向节轴承的疲劳寿命问题展开讨论,提出了预测万向节轴承疲劳寿命的计算方法,分析了部分影响万向节轴承疲劳寿命的因素及这些因素如何对疲劳寿命产生影响,通过这些工作为广大工程人员在设计、选型和分析时提供了参考。

Universal joint bearing is a special kind of needle roller bearing. It oscillates m the appllcanon. As a core component in commercial vehicle driveline, there＇s little study on universal joint bearing life; no clear, practical summary of the factors that can influence the bearing life; there＇s also no systematic, scientific and reliable calculation method for this bearing, which leads to a lot of problems when engineers try to analyze the root causes of bearing failure, to improve the bearing life and performance, to select universal joint or even to design a propeller shaft. In order to solve these problems, this paper will discuss the universal joint bearing life, analyze the factors that can influence the bearing fatigue life and how they influence, which can give engineers some good references in the daily work on design, bearing selection and analysis.