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Dc Electric Motor Motor | Manufacturer & Supplier

DC motor is an electric motor that converts DC electric energy into mechanical energy. Its principle is electromagnetic drive. Waland motoe has good speed regulation performance and is widely used in electric traction. DC motors are divided into three categories according to the excitation method: permanent magnet, external excitation and self-excitation. Among them, self-excitation is divided into three types: parallel excitation, series excitation and compound excitation. DC motors have the characteristics of good speed regulation performance and large starting torque.

Ac Motor 24v

 

 

Working principle of DC motor-structure

 

DC motor mainly includes magnetic field, excitation winding, armature winding, commutator and armature. Let us introduce these parts in detail below:

Magnetic field: N and S are a pair of stationary magnetic poles used to generate a magnetic field, and its magnetic induction intensity is sinusoidally distributed along the circumference.

Excitation winding: The winding used to form the N pole and the S pole is called the excitation winding, and the current in the excitation winding is called the excitation current If.

Armature winding: Between the N pole and the S pole, there is a cylindrical iron core that can rotate around the axis. A coil is tightly wound around it, which is called the armature winding. The current in the armature winding is called the armature current Ia.

Commutator: The two ends of the armature winding are connected to two commutator segments that are insulated from each other and rotate coaxially with the winding to form a commutator.

Armature: The rotating part composed of the iron core, armature winding and commutator is called the armature.

 

DC Motor, How It works | DC Adventages

 

Generation of electromotive force: When the armature is driven by the prime mover at a constant speed and rotates counterclockwise, the right-hand rule can be used to determine the direction of the induced electromotive force generated by the coil ab and cd sides cutting the magnetic lines of force. Then, a current Ia is generated in the loop formed by the load and the coil, and its direction is the same as the direction of the electromotive force. The current flows out from brush A and flows back from brush B.

Commutation: When the armature rotates to a specific position, the direction of the induced electromotive force in the coil changes, but since the commutator rotates along with it, the brush A always contacts the wire under the N pole, and the brush B always contacts the wire under the S pole, so the current still flows out from A and back to B, and the direction remains unchanged.

 

Industrial DC motor application areas


Lifting machinery
Large pulleys and winches such as overhead cranes, cranes, tower cranes, etc. are often driven by high-power DC motors.
Drag shovel machinery
The walking and working devices of engineering machinery such as loaders, bulldozers, forklifts, etc. use DC motors as power sources.
Transmission equipment
All kinds of transmission equipment such as conveyors, belt conveyors, and hoists have DC motors driving transmission rollers, chains and other moving parts.
Metallurgical equipment
The continuous moving parts such as rolling mills and roller systems of continuous casting machines in steel plants, as well as the traction of pouring tank cars, use high-power DC motors.
Mining equipment
Mining machines, conveyors, hoists, etc. all have DC motors as power sources and control actuators.

 

We're professional dc electric motor manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale high purity dc electric motor from our factory.

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