【摘要】 文章以啮合理论为出发点，考虑齿轮基节偏差，给出了沉切尖点啮合冲击的概念，推导出了啮入与啮出沉切点冲击速度计算公式。更多还原

【Abstract】 Taking the engagement theory as the starting point and considering the deviation of base pitch of gear this paper presented a concept of engagement shock at the under cut tip point and deduced the calculation formulas of impact velocity at the under cut point for meshing in and out.更多还原