牙轮钻机系目前国外露天采矿中广泛采用的一种穿孔设备,其主要机构包括:钻具回转机构(即回转器),钻具推进和提升机构,行走机构。回转与推进两机构的电动机是在长期运转状态下工作。行走机构电动机的工作制度同挖掘机的一样,在水平面移动时,电动机运转时间长,而在爬坡和履带原地转弯时,电动机运转时间短。为了确定回转与推进两机构电 Drill rig is currently a widely used open-pit mining in the world of a perforation equipment, the main institutions include: drill rotary mechanism (ie, gyrator), drilling propulsion and lifting agencies, walking agencies. Rotary and promote the two bodies of the motor is working in the long-term operation. Running mechanism motor working system with the same excavators, moving in the horizontal plane, the motor runs for a long time, and climbing and crawler in place of the original turn, the motor running time is short. In order to determine the rotation and advance the two agencies electricity