渐开线齿轮副的最小侧隙计算与分析

齿轮副必须具备足够量的最小侧隙才能保证正常啮合传动。目前关于最小侧隙的计算还没有比较理想的方法,在理论上和考虑诸影响因素上也尚有争论,尤其渐开线圆柱齿轮精度制(JB179—83)简介中规定了最小侧隙的计算公式,我认为也同样存在着值得商榷的地方。本文重点提出了齿轮副最小侧隙与润滑方式无关而与齿面粗糙度有关的新论点,同时对各影响因素逐一进行分析,提出了新的计算公式。

Calculation and Analysis of the minimum Backlash of an Involute Gear Pair

The normal gear engagement and transmission demand a sufficient minimum backlash of the involute gear pair. Up to now, a perfect method for the calculation of the minimum backlash is not yet to be found, and a controversy still exists both in theory and in consideration of related factors. It is worth notice that some points are questionable in the formulae for calculating the minimum backlash provided in the brief introduction of the precision system of the involute cylindrical gear (JB179-83). A new argument was proposed, i.e. the minimum backlash of a gear pair had nothing to do with the ways of lubrication, but was related to the roughness of the tooth surface. Furthermore, all the related factors were analysed and some new formulae proposed.