煤矿井下采用电机车牵引矿车运煤时,一个循环需多次摘挂钩,每次摘挂钩司机必须停车下车操作,一些矿井在装卸点设专职人员负责电机车与矿车之间的摘挂钩工作。近年来有些矿井对电机车与矿车间的摘挂钩方式进行了改进,司机可在车内通过机 Coal mine electric car towing car when the coal, a cycle need to pick the hook several times, each pick the hook driver must get off operation, some mines at the loading and unloading points full-time staff responsible for picking the hook between the motor car and the tub jobs. In recent years, some mines on the electric car and mining shop picking hook method has been improved, the driver can pass in the car