齿间滑动摩擦对机床增速齿轮传动中大齿轮齿根弯曲疲劳强度的影响

本文作者在对机床增速齿轮传动中大齿轮受力状况作全面分析及研究基础上推导出一组公式，利用该组公式可计算机机床增速齿轮传动中大齿轮在包括齿间滑动摩擦在内的实际载荷作用下的齿根弯曲疵劳应力。

The effect of the sliding friction between teeth on the bending fatigue stress on the tooth root of the great gear in the machine tool increasing speed gearing

The traditional gear strength theory1~3], which has been used up to now, thinks that the effect of the sliding friction hetween teeth on the tooth root bending fatigue stresses of gears can be neglected.The author of this article has made overall analysis and research on the forcing condition of the great gear in the machine tool increasinq speed gearing, and derived the formulas for calculating the tooth root bending fatigue stress of the great gear subjected to the actual outside loads including the sliding friction between teeth. It has been Proved by researches that the effect of the sliding friction between teeth on the tooth root bending fatigue strength of the great gear of the machine tool increasing speed gearing should not be negligible.