By using geometry analysis method, this paper educed calculation formula of normal direction gear side clearance when internal gearing involute gear transmission center distance waned slightly.
通过几何分析的方法，导出了内啮合渐开线齿轮传动中心距略变小时，法向齿侧间隙的计算公式，供齿轮传动设计计算之用。
The geometry features of involute of regular polygon are analyzed. It is indicated that the involute of even regular polygon can be used as the scroll wrap.
分析了正多角形渐开线的几何特性，指出角数为偶数的正多角形渐开线可以用作涡旋型线；
The geometry features of involute of regular polygon are analyzed. It is indicated that the involute of even regular polygon can be used as the scroll wrap.
分析了正多角形渐开线的几何特性，指出角数为偶数的正多角形渐开线可以用作涡旋型线；
应用推荐