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牙科电钻车是口腔科的常用设备。现将国产牙钻车的常见故障及处理方法简述如下,供维修时作参考。一、电机不能起动原因:1.通电柱与锥形管内弹簧触头接触不良,2.电机电刷与换向器接触不良;3.定子或转子绕组断路或短路。处理方法:1.将电动机锥形管从通电柱拨出,拆下接线板,修理弹簧触头;2.检查电刷架上的电刷弹簧,改善接触面(电刷对整流子的静态压力应为130克左右);3.更换已损坏的部件。
Dental drills are commonly used equipment in dentistry. The common faults and treatment methods of domestic drilling rigs are briefly described below for reference during maintenance. First, the motor can not start reasons: 1. The power column and the conical tube inner spring contact bad, 2. The motor brush and commutator poor contact; 3. The stator or rotor windings open or short circuit. Disposal methods: 1. Dispose the conical tube of the electric motor from the electric current column, remove the wiring board, and repair the spring contact; 2. Check the brush spring on the brush holder to improve the contact surface (static pressure of the brush on the commutator) Should be about 130 grams); 3. Replace damaged parts.