工程机械中的大型关节轴承重复使用条件下寿命计算方法

The Calculation of Wear-life of Spherical Plain Bearing in Engineering Machine

在工程机械中,关节轴承的失效主要为接触面的过度磨损,特别是对自润滑关节轴承,这种磨损影响因素非常复杂。根据关节轴承的低速重载和边界膜润滑工作条件,考虑各种影响因素的联合作用后,建立了轴承磨损寿命计算模型,分析了各影响系数的变化规律。并通过实例计算说明了轴承寿命估算方法。

In engineering machines, the invalidity of spherical plane bearings is mainly caused by excessive wear, which is especially true of the maintenance-free spherical plain bearings with very complicated factors leading to its wear. This paper, on the basis of the working conditions of low speed heavy load and boundary film lubrication of spherical plain bearings, establishes a calculation modal of wear-life of bearings, analyzes the changing rules of every influence coefficient, and illustrates the estimating method of wear-life of bearings by examples.