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本刊1977年第5期发表了张展与吴中心同志的“端面重合系数计算查表法”一文,其作用和用法已如该文所述。计算的实践证明,对于少齿差传动,在采用现行标准短齿制条件下,为了保证不发生齿廓重迭干涉(即Gs>0),和重合系数ε稍大于1,啮合角α必须在一定的范围内。例如对于一齿差,一般推荐α=54°～56°。在此范围内,从闭廓图上可以得到多种变位系数的方案来满足计算要求。当然闭廓图中的范围已很小,实际上已规定了α的下限,免于使计
The fifth issue of 1977 published Zhang Zhan and Comrade Wu Zhongxin “face coincidence coefficient calculation look-up table” a text, its role and usage as described in this article. It has been proved by calculation that, in the condition of the current standard short-tooth system, in order to ensure that there is no overlap of tooth profile (ie, Gs> 0) and the coincident coefficient ε is slightly larger than 1, Within a certain range. For example, for a tooth difference, it is generally recommended that α = 54 ° ~ 56 °. In this range, from the closed profile can be a variety of displacement coefficient of the program to meet the calculation requirements. Of course, the range of closed contour has been very small, in fact, has been provided for the lower limit of α, from the dollars