【摘要】 建立了牙轮钻机小车纵向振动的数学模型，给出了系统振动时幅频特性的关系表达式和图谱，研究了系统振动的自功率谱密度。讨论了系统纵向振动产生的主要原因更多还原

【Abstract】 The mathematical model of trolley vertical vibration of the blast hole drill is established. The expression formula of amplitude-frequency response .as the system is vibrated. is given in this paper. And the main factors causing the vertical vibration are also discussed更多还原