斜齿插齿刀由于前角的影响,其创成齿轮的齿形,除了在分度圆上外,是偏离于理论渐开线的。本文用数值方法通过Fortran程序解算齿形误差和基圆直径,并附计算实例。一系列计算表明,目前工厂采用的基圆直径是近似的,与本文提供的精确值间呈现有规律的微小差别。 Helical gear shaper cutter due to the impact of the rake, which created the gear tooth profile, in addition to the sub-degree circle, is deviated from the theoretical involute. In this paper, the numerical method through the Fortran program to calculate the tooth-shaped error and the diameter of the base circle, with a calculation example. A series of calculations have shown that the diameter of the base circle used in the current plant is approximate and shows a small, regular difference from the exact values ​​provided in this paper.