通过对振动式掘进机截割头偏心机构的运动分析,建立了一种振动式掘进机截割头冲击力的数学模型,利用计算机模拟,得到了冲击力随时间变化的曲线。分析这些曲线,得出在不同时刻截割头上冲击力的大小、变化规律及特征,为合理选择振动式掘进机的偏心机构参数、改善其工作性能提供了理论依据。 By analyzing the movement of eccentric head of vibrating roadheader, a mathematical model of the impact force of the cutting head of vibrating roadheader was set up. By using computer simulation, the curve of impact force with time was obtained. By analyzing these curves, we can get the size, variation rule and characteristics of the impact force at different moment of cutting head, which provides a theoretical basis for choosing the eccentric mechanism parameters of vibration boring machine and improving its working performance.