电动装岩机是矿山主要的矿石铲装设备,使用中,直流电机轴锥形轴头键槽常被滚磨,使与其联接的齿轮松动,致使装岩机无法正常工作。维修时必须将直流电机拆下,从井下运到地表,抽出电机转子,更换电机轴。 电机轴头结构如图1所示。由于装岩机装矿时电动机频繁正反转,在交变载荷的作 Electric rock loader is the main ore shovel mining equipment, the use of DC motor shaft taper shaft keyway often barrels, so that the gear connected to loose, resulting in rock loader failure to work properly. Maintenance must be removed DC motor, transported from the ground down to the surface, remove the motor rotor, replace the motor shaft. Motor shaft structure shown in Figure 1. As the rock loading machine motor frequent reversal of positive and negative, in the alternating load for