来源：http://www. 发布时间：2020天天彩票网站-05-25 浏览：次
If the DC decelerating motor does not need to be used again for a long time, it will be found that the insulation resistance of the winding of the gear motor will be reduced, especially in the rainy season, when the air humidity is high, or even its insulation value will be reduced to zero, then it should be dried to make the insulation resistance and absorption ratio, and the following drying methods are obtained:
1、 Drying method of electric welding machine
1.在交流焊机烘干方式运行前，将受潮的电机绕组接线端子连接，并对外壳进行接地，从而实现三组绕组的加热烘干 。为了监测干燥过程中电流的变化，可以连接电流表，观察电流是否达到减速电机的额定电流 。采用交流焊机烘干直流减速电机，无需拆检，减少了工作量 。同时，减速电机在通电的情况下利用自身电阻加热，使线圈加热均匀，干燥效果较好 。
1. Before the drying operation of AC welding machine, connect the terminals of the damped motor winding and ground the shell, so as to realize the heating and drying of three groups of windings. In order to monitor the change of current during the drying process, the ammeter can be connected to observe whether the current reaches the rated current of the reduction motor. Adopt AC welding machine to dry DC decelerate motor, no need to dismantle and check, reduce workload. At the same time, when the decelerator is electrified, it uses its own resistance to heat, which makes the coil heating even and the drying effect is good.
2.直流电焊机干式操作接线类似于交流电，电流表应采用直流电流表 。使用直流焊机烘干湿式减速电机方便，可长时间烘干大中型减速电机和高压减速电机 。这样，焊机在长时间工作或大电流工作时，其内部元件不会因 长时间大电流工作而损坏，可长时间用于大中型减速 。需要注意的是，在使用这两种方法进行干燥时，所有的触点必须处于良好的接触和紧固状态，焊机引脚采用专用导线，截面尺寸的要求应满足焊机输出电流负载 。注意焊接变压器冷却,同时,以确保没有减速电机绝缘电阻低于0.1Ω 。还要密切注意电机的绕组温度，及时调整电压和电流 。
2. The dry operation wiring of DC welding machine is similar to AC, and the ammeter shall be DC ammeter. It is convenient to use DC welding machine to dry wet type decelerating motor. It can dry large and medium-sized decelerating motor and high-pressure decelerating motor for a long time. In this way, when the welder works for a long time or with a large current, its internal components will not be damaged due to a long time and a large current, and can be used for a long time for large and medium-sized deceleration. It should be noted that when the two methods are used for drying, all contacts must be in good contact and fastening state, the welding machine pin adopts special wire, and the section size shall meet the output current load of the welding machine. Pay attention to the cooling of the welding transformer, at the same time, to ensure that the insulation resistance of no reduction motor is less than 0.1 Ω. Pay close attention to the winding temperature of the motor and adjust the voltage and current in time.
2、 External heat source heating mode
对于潮湿的直流电减速电机，经检查后先将其拆卸，用大功率白炽灯装入减速电机进行烘烤，或将减速电机装入烘房进行烘干 。该方法操作简单、安全可靠，但仅适用于易拆检的小型电机 。而对于大中型或不易拆装的电机，其负荷相对较大，也降低了其可行性 。需要注意的是，在本方法的操作过程中，灯泡或热源不应离线圈太近，以免线圈烧坏 。用帆布覆盖减速电机壳体可实现绝缘 。
For the wet DC motor, dismantle it after inspection, install the high-power incandescent lamp into the motor for baking, or install the motor into the drying room for drying. This method is simple, safe and reliable, but it is only suitable for small motors which are easy to be disassembled and inspected. For large and medium-sized or hard to dismantle motors, the load is relatively large, which also reduces its feasibility. It should be noted that during the operation of this method, the light bulb or heat source should not be too close to the coil to avoid the coil burning out. The insulation can be realized by covering the reducer housing with canvas.
3、 Field coil drying method
The excitation coil drying method is to wind the excitation coil around the stator core of the motor, generate the flux of the stator through AC, and dry the motor stator according to the iron loss of the motor.
The above is the relevant content introduced by Shandong automatic door motor manufacturer. If you want to know more, please visit the website: http://www.
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