在机械制造行业中占统治地位的是渐开线啮合,因为它在制造和装配方面有许多优点,便于普及推广。但它在某些性能方面存在缺点,如齿顶、齿根部分耐磨性差,齿根弯曲强度低。尤其像矿山机械（球磨机、挖掘机等）中的开式齿轮传动,以上缺点更为突出。因此,对渐开线齿形进行修形是十? Involvement in the machinery manufacturing industry is involute, because it has many advantages in terms of manufacturing and assembly, and is easy to popularize. But it has some shortcomings in performance, such as tooth top, root part of the poor wear resistance, low root bending strength. In particular, like mine machinery (ball mill, excavator, etc.) in the open gear transmission, the above shortcomings are more prominent. Therefore, the involute toothed shape is ten?