渐开线少齿差行星传动的变位系数的选择

目的 解决渐开线少齿差行星传动变位系数的最佳选择方法。方法 采用齿廓建干涉条件Ｇｓ向不发生齿廓干涉条件的临界值ｅ逼近，结果，推导出选择变位系数的公式，并通过实例证明了该方法的正确性，结论利用该方法得到的变位系数，可以增大重合度，减小机构尺寸、提高传动质量。

Determination of the Coefficient of Offset of a Planetary Gear Train with a Small tooth Difference

Aim Proposes a new method of determinating the coefficient of offset in the planetary gear train having a small tooth difference. Methods The interfe- rence condition Gs is made to approach the expected critical value e under which there is no interference. Results A formula is established to determine the optimal coefficient of offset. Conclusion When the coefficient of offset is used to design modified gears, the contact ratio, is increased besides a reduction in gear size, and no interference will occur.