The principle of industrial overhead door motors

A motor is a device that converts electrical energy into mechanical energy. It is the use of energized coils to generate a rotating magnetic field. Act on the rotor to form a magnetoelectric dynamic rotational torque. The industrial overhead door motor is mainly composed of a stator and a rotor.The direction of the forced movement of the energized wire in the magnetic field is related to the direction of current and the direction of the magnetic induction line. The working principle of the industrial overhead door motor is the action of the magnetic field on the current to make the industrial overhead door motor rotate. Today we mainly learn about industrial overhead door motors.

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How to disassemble the motor

The working principle of the motor

How to disassemble the motor

Remove the external wiring of the industrial overhead door motor first and mark it. For example, for asynchronous motors, the marks corresponding to the three-phase power line should be made. And for DC industrial overhead door motors, the marks corresponding to the external wiring such as parallel excitation windings and armature windings should be made respectively. Then, loosen the foot screw to separate the industrial overhead door motor from the transmission machinery.

To disassemble the pulley or coupling on the industrial overhead door motor shaft.Sometimes it is necessary to add some kerosene in the gap between the industrial overhead door motor shaft of the pulley to make it penetrate and lubricate, which is easy to disassemble. Some shafts and wheels fit tightly, and the wheel needs to be heated quickly to remove the wheel.

For the industrial overhead door motor equipped with rolling bearings. The bearing cover should be removed first.And then loosen the fastening screws of the end cover.Mark the joint between the end cover and the base shell.For motors without such screw holes.The end cover can only be removed from the base by hitting the joint between the end cover and the base with a hammer. If the end cover is heavy, the end cover should be hoisted by lifting equipment and gradually removed.

When disassembling the industrial overhead door motor with brushes.The brushes should be taken out from the brush grip.And the position of the brush neutral wire should be marked for the DC industrial overhead door motor.

When pulling out the rotor, you must pay attention not to hurt the stator coil.The weight of the rotor is not large. You can withdraw it by hand. If the weight is large, it should be hoisted with lifting equipment. First, the two ends of the rotor shaft are set with a reused wire rope.Hoist the rotor with lifting equipment and slowly move out.Pay attention to prevent damage to the coil. Then set a steel pipe at one end of the shaft. In order not to scratch the journal of the steel pipe, you can line the steel pipe with a layer of thick cardboard to continue to gradually move the rotor out. When the center of gravity of the rotor has moved to the outside of the stator, pad a bracket under the rotor shaft end. And put the wire rope in the middle of the rotor, you can extract all the rotors.

The working principle of the motor

The working principle of the industrial overhead door motor is the action of the magnetic field on the current to make the motor rotate. An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field and acts on the rotor squirrel cage-type closed aluminum frame.Form a magnetoelectric dynamic rotational torque. The industrial overhead door motor is divided into a DC motor and an AC motor according to the different power supply. And most of the industrial overhead door motors in the power system are AC motors, which can be synchronous motors or asynchronous motors.

Above we have introduced the working principle of the industrial overhead door motor and how to disassemble the motor. The same is true of motors in overhead doors. If you are interested, you can learn more about it.