铣床类设备名称:X62W万能升降台铣床(北京第一机床厂产)一、故障现象:工作台进给或快速,只能向下,向右或向前移动;不能向上、向左或向后移动。分析与检查:工作台进给或快速移动时,电动机共有正、反两个转动方向。电动机正转时带动传动机构作向下、向右或向前运动;而反转时带动传动机构作向上、向左或向后运动。故本例是由于电动机转动故障所致。 Milling machine class Name: X62W universal lifting table milling machine (Beijing No.1 Machine Tool Plant) First, the fault phenomenon: table feed or fast, only down, right or forward; can not be up, to the left or back mobile. Analysis and inspection: Table feed or rapid movement, the motor has a total of positive and negative two directions of rotation. When the motor is rotating, the transmission mechanism is driven downwardly and rightwardly or forwardly; and when the motor rotates clockwise, the transmission mechanism is driven upwardly, leftwardly or backwardly. Therefore, this case is due to motor rotation failure.