修井机是一种油田作业机械,它通过动力切换装置实现自身行走和修井作业功能。修井机在行走状态时,发动机动力经变速器、分动器、传动轴传递给其底盘的前桥和后桥。在进行钻井、捞油等修井作业之前,操作人员需操纵动力切换装置,将发动机动力切换到修井 Workover rig is a kind of oil field work machine, which realizes its own walking and workover work function through the power switch device. Workover rig in walking state, the engine power transmission, transmission, transmission shaft to the chassis of the front axle and rear axle. Before conducting drilling operations, oil extraction and other workover operations, the operator needs to manipulate the power switching device to switch the engine power to workover