How to repair a gear reducer equipped with an explosion-proof motor
Publish Time: 2021-10-22 Origin: 威戈传播
Common household appliances, clocks and watches in daily life.Its application can range from high power transmission to small load and precise angle transmission.In industrial applications, reducers have the function of reducing speed and increasing torque.Therefore, it is widely used in speed and torque conversion equipment.
Explosion-proof motors equipped with reducers are common equipment in mines.Typically a B5 vertical motor is used.If it has a connection to the coupling, it's usually a horizontal motor.The following describes the maintenance of explosion-proof motors equipped with various reducers.
1. The explosion-proof motor shall not be disassembled; during disassembly and maintenance, the explosion-proof surface of the parts shall not be used as the fulcrum of the crowbar, and it is not allowed to knock or impact the explosion-proof surface.
2. When disassembling the motor, first take out the cover and fan, and then use the bushing to remove the bolts of the end cover and bearing cover.Then, hit the shaft extension axially with a wood or copper rod to separate the end cap from the base and remove the rotor.When removing components, the explosion-proof surface should be placed upwards and covered with rubber or cloth gaskets.Be careful not to lose the fastening bolts and spring washers.
3. During the coating impregnation and assembly process, the insulating coating or dirt attached to the explosion-proof surface should be cleaned.Hard objects such as iron plates are not allowed, but petroleum stones can be used for uneven places.
4. If the explosion-proof surface is damaged, lead-tin solder HISNPB58-2 must be used.Flux is hydrochloric acid at 30% concentration (steel parts) or tin zinc solder, tin zinc contains 58~60% tin.The fluxes are * * * Ammonium Chloride, 30% and * * * Zinc Chloride, Zinc Chloride, 70%.Add 100~150% mixed solution (for cast iron parts) for welding repair.The bond between the solder and the part should be strong and the protrusions should be placed flat to achieve the specified finish.