Deceleration motor slowdown in the process of production, and often find some deceleration motor placed unused for a period of time, to enable again found during deceleration motor winding insulation resistance is reduced, especially in the rainy season, the air humidity is big, its insulation value even down to zero, this moment should be dry processing, so that the insulation resistance, absorption ratio reaches the specified value, if rushed, there may make reduction motor coil insulation breakdown, the formation of the accident. Here are three brief slowdown motor drying: a gear motor, external heat source heating method of be affected with damp be affected with damp first after the overhaul, with high-power incandescent bulbs in the gear motor internal to bake, or deceleration motor into the chamber to dry. This method is convenient, safe and reliable operation, but applies only to tend to be small deceleration motor overhaul. Of large and medium-sized gear motor or not easy to overhaul work is relatively large, but also reduces the feasibility. Should pay attention to is that this way of operating when the light bulb or heat source, not too close to the coil, in case of burn out the coil can be in gear motor shell on the canvas items such as thermal insulation. 2 a and ac arc welding machine, welding machine drying drying before operation will be affected with damp be affected with damp deceleration of the motor winding, wire head together, chassis ground, so that it can complete heating drying on three sets of windings, to supervise the current changes in the process of drying, string into an ammeter, investigating the current whether to slow down the motor rated current. Gear motor with ac arc welder is dry needn't to overhaul of gear motor, reduced the production, at the same time under the condition of the electric gear motor with its own resistance heating, uniform coil heat and drying effect is better, but this method is only applicable to the following gear motor, and cannot use for a long time, because of ac arc welder operations in the welder transformer current is bigger, can't use for a long time, otherwise may burn out electric welding machine. B, dc arc welding machine drying operation connection and communication, the string ammeter should be dc ammeter. 用直流电焊机干燥受潮减速电机操作便利同时可对大中型减速电机、高压减速电机进行长期干燥。 So, welder homework or large current job for a long time, its internal components without the formation damage by long-term large current operation, it can be to large and medium-sized gear motor used for a long time. Keep in mind, the dry requires that all contact with the two method is necessary to good touch and fastening, electric welding machine, lead wire with a special wire requirements section range should be satisfied with electric welding machine output current carrying capacity. Pay attention to the welding machine itself transformer cooling, at the same time, to ensure that the deceleration of the motor insulation resistance cannot be lower than 0. 1 mΩ。 To closely monitor deceleration motor winding temperature adjust voltage current. Three, excitation coil drying excitation coil drying is circled on the deceleration of motor stator iron core on excitation coil, and pass into the alternating current, the stator flux, relying on its iron loss to dry gear motor stator.
