How The Electromagnetic Brake Works

- May 14, 2019-

How the electromagnetic brake works

The friction ring rotates with the brake drum, and the electromagnet is coupled to the drive lever by a snap spring. When the brake starts, the controller sends a brake signal, and the electromagnet is energized to generate electromagnetic attraction, which is adsorbed on the friction ring. Since the electromagnet is restrained by the driving lever, the friction ring is relatively slid, and the friction acting on the electromagnet drives the driving lever connected thereto to rotate around the fulcrum. The driven end of the lever opens the two friction shoes of the brake and presses against the brake drum, generating a braking torque. When the brake is finished, the electromagnet is de-energized, and the suction and friction force disappear. Under the action of the return spring tension, the friction shoe leaves the brake drum and releases the brake.

Electromagnetic brake is an ideal automatic actuator in modern industry. It mainly plays the role of transmitting power and controlling motion in mechanical transmission system. The utility model has the advantages of compact structure, simple operation, sensitive response, long service life, reliable use, and easy realization of long-distance control.

It is mainly matched with series motors. Widely used in metallurgy, construction, chemical, food, machine tools, stage, elevators, ships, packaging and other machinery, and in the case of power failure (anti-risk) braking and other occasions.