Working Principle
1 Braking Engagement
When the braking device is activated, a DC current is supplied to the electromagnetic coil. The resulting magnetic field attracts an armature or a set of levers within the device. This attraction causes the brake shoes to be pressed against the inner surface of the drum. The friction between the shoes and the drum creates a braking torque, which slows down or stops the rotation of the drum.
2 Braking Disengagement
When the current to the electromagnetic coil is interrupted, the magnetic field collapses. The armature or levers return to their initial position due to the action of springs or other return mechanisms. This releases the pressure on the brake shoes, allowing the drum to rotate freely once again.
