从运动学理论出发，应用优化设计原理推导出了抡锤与冲击齿合理配置的计算公式，用此公式设计冲击式工作机构，可消除主轴的脉动扭矩。 Based on the theory of kinematics, a formula for calculating the reasonable collocation of chisel hammer and striking tooth is deduced by using the principle of optimal design. The impulse working mechanism is designed by this formula to eliminate the pulsating torque of the main shaft.