Disassembly and maintenance steps for the brake motor

Publish Time:

2020-07-06

Brake motor disassembly and maintenance: Motor disassembly steps: Use a puller to remove the pulley or coupling, remove the motor rear cover, and remove the front bearing outer cover screws and front and rear end cover screws.

Brake motor disassembly and maintenance motor disassembly steps: Use a puller to remove the pulley or coupling, remove the motor rear cover, and remove the front bearing cover screws and front and rear end cover screws. For larger motors, before disassembly, use a scriber to mark the original fixed positions on the two end covers and the frame. Use a wooden mallet to tap the top of the front shaft to loosen the rotor and rear end cover from the frame, and then remove the rotor from the stator. When removing the rotor, be sure not to scratch the stator winding end insulation.

Check the motor bearings for damage and whether the lubricating oil has deteriorated or dried up. Hold the outer ring of the bearing and shake it back and forth to see if it is loose. If the bearing is checked to be normal, do not disassemble it. Clean the bearing with kerosene or diesel oil. If there is a problem, use a puller to remove the bearing. If the shaft and bearing are too tight or rusted, heating can be used. Wrap the shaft with asbestos rope and use an oxyacetylene torch to quickly and evenly heat the bearing to about 250℃, and use a puller to pull it out while it is hot.

Cold disassembly method: Place a wooden block under the bad bearing, and use an iron hammer to break the outer ring. After removing the outer ring, use a hand-held grinder to cut a notch in the inner ring (do not cut through to avoid damaging the rotor shaft). Then use a hammer to knock the inner ring to make the cut crack and remove the inner ring. When replacing the bearing, direct installation is easy to scratch the rotor shaft. Generally, smaller bearings can be installed directly. When installing and replacing larger bearings, put the bearing into an oven and heat it. When the temperature reaches about 100℃, install the bearing on the rotor shaft while it is hot. Use a steel pipe on the shaft, against the inner ring of the bearing, and evenly tap the steel pipe to make the shaft in place.

In the field of industrial automation and mechanical equipment, brakes are core components that ensure safe operation and precise control. Their performance directly affects production efficiency and personnel safety. AC brakes, as braking devices driven by AC power, play an irreplaceable role in various industrial scenarios due to their high efficiency, reliability, and rapid response.

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