本文介绍外径165毫米,总长9175毫米、额定功率50千瓦,额定电压500伏,转速为630转/分的电钻,最近的一次试钻情况。文章对电钻试钻中发生的各种故障及试验数据作了分析,说明该电机定子绕组的绝缘寿命较好,减速器工作正常。这些分析意见,可供研制这种电钻的工作人员参考。 This article describes the outer diameter of 165 mm, total length 9175 mm, rated power of 50 kW, rated voltage of 500 volts, speed of 630 rev / min drill, the recent test drilling situation. The paper analyzes various faults and test data occurred during drill drilling test, which shows that the insulation life of the stator winding of the motor is good and the reducer works normally. These analytical advice, for the development of such electric drill staff reference.