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本刊1991年第4期的《标准插齿刀改制短齿内齿(?)齿刀》一文介绍的方法是正确的,但其中所介绍的内齿轮变位系数计算公式: X_齿=sin~(-1)(π/2Z_齿-S_x/mZ_齿)·Z_齿/2tgα是错误的。举例计算结果略大于正确值0.128。而取0.128是一种巧合,但(?)以其它数据为例来计算,其结果将产生误差。正确的计算公式应该是:
The fourth edition of 1991 issue of “standard gear shaper cutter short tooth internal gear (?) Gear cutter” method is correct, but the description of the internal gear displacement coefficient formula: X_ tooth = sin ~ (-1) (π / 2Z_tooth - S_x / mZ_tooth) • Z_Tooth / 2tgα is wrong. Example The calculated result is slightly larger than the correct value of 0.128. Taking 0.128 is a coincidence, but (?) Takes the other data as an example to calculate, the result will produce the error. The correct formula should be: