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因为剃齿刀和齿轮的啮合,相当于一对螺旋齿轮的无侧隙的啮合传动,所以有关剃齿刀的计算公式,都是基于一对螺旋齿轮啮合原理推导出来的,因此计算公式较为复杂和麻烦。如果我们把剃齿刀和齿轮的啮合近似地看作一对模数等于剃齿刀法向模数m_n,分圆压力角等于剃齿刀分圆法向压力角α_n的法向当量直齿齿
Because the gear shaper is meshed with the gear, it is equivalent to the backlash-free meshing transmission of a pair of helical gears. Therefore, the calculation formula of the shaving cutter is derived based on the meshing principle of a pair of helical gears, so the calculation formula is complicated And trouble. If we consider the meshing between the shaver and the gear approximately as a pair of normal equivalent straight teeth having a modulus equal to the normal modulo m_n of the shaving cutter with a pressure angle equal to the normal pressure angle α_n of the shaving cutter circle