本文从基节误差对齿轮啮合作用半径R_啮变化的影响,推导出在顶刃啮合区内,从动轮瞬时角速度及冲击能量的计算公式。 计算结果表明,基节误差造成齿轮啮合冲击的根本原因是,基节误差的存在,破坏了齿轮的正常啮合(进行顶刃刮行啮合),使齿轮啮合作用半径发生了变化。 推导的结论将有助于基节误差对齿轮工作平稳性及噪声影响的分析计算。同时也能较清楚地看到在顶刃啮合区内,齿轮角速度变化的过渡过程。 This paper deduces the formula of instantaneous angular velocity and impact energy of the driven wheel in the top blade meshing area from the influence of base error on the meshing radius R_interference. The calculation results show that the root cause of the meshing impact caused by the base error is that the base error, the normal meshing of the gear (the scraping of the top edge) and the change of the meshing radius of the gear change. The conclusions drawn will help to analyze and calculate the influence of base error on the work stability and noise of gear. At the same time can also clearly see the top blade meshing area, the gear angular velocity of the transition process.