来源：http://www.jnmcd.com 发布时间：2018-12-26 浏览：次
Electric welding machine drying method
In order to monitor the current change during drying process, an ammeter can be connected in series to observe whether the current reaches the rated current of the reducer motor.
DC deceleration motor dried by AC welding machine does not need to be disassembled and checked, which reduces the workload. At the same time, the deceleration motor uses its own resistance to heat under the condition of electrification, so that the coil is uniformly heated, and the drying effect is better.
The dry operation wiring and AC of DC welding machine are similar. The series ammeter should be DC ammeter. It is convenient to use DC electric welding machine to dry the damp speed reducer motor, and it can also dry the high voltage speed reducer motor of large and medium-sized speed reducer for a long time.
In this way, when the welding machine works for a long time or at high current, its internal components will not be damaged by long time and high current, so it can be used for a long time for large and medium speed reduction motors. It is worth noting that when drying with these two methods, all contacts must be well contacted and tightened, and special wires should be used for the lead-out wires of electric welding machines.
The required cross-section size should meet the current carrying capacity of the welding machine. Pay attention to the cooling of the transformer of the welding machine itself, and ensure that the insulation resistance of the reducer motor can not be less than 0.1M. We should also pay close attention to the winding temperature of the decelerating motor and adjust the voltage and current in time.
External heat source heating method
For the damp DC deceleration motor, after disassembly and inspection, the high-power incandescent bulb is put into the deceleration motor to bake it, or the deceleration motor is put into the drying room for drying. This method is easy to operate, safe and reliable, but only suitable for small reducer motors which are easy to disassemble and inspect. For large and medium-sized or not easy to disassemble and inspect the deceleration motor, the workload is relatively large.
At the same time, it reduces the feasibility. It should be noted that the light bulb or heat source should not be too close to the coil in order to prevent the coil from burning out. Canvas and other items can be added to the housing of the decelerating motor for insulation.
Excitation coil drying method
The excitation coil drying method is to wind the excitation coil on the stator coil core of the deceleration motor and pass it into alternating current to make the stator produce magnetic flux and dry the deceleration motor stator by its iron loss.
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