Motor synchronous excitation brake

A motor synchronous excitation brake is comprised of a brake and a motor, the motor having a casing adapted with an exciting coil and a rotor with a shaft, and two end caps each adapted with a braking shoe being respectively provided on both ends of the casing;

• and the brake being provided between both ends of the rotor and those two end caps, characterized by that:
• two brake disks being respectively provided by sliding on the shaft of both ends of the rotor;
• two inclined wedges being respectively extending towards the rotor from the outer circumference of a central hole of both brake disks;
• the wedge being close to the shaft;
• a graded edge each protruding from the shaft at both ends of the rotor, a wedge-shaped slot in relation to the inclined wedge being formed on the graded edge;
• a protection ring being adapted to the outer circumference of each end of the rotor;
• a flushed area being provided to the protection ring at where its end is curved;
• and a braking spring held against where between the braking disk and the rotor to push the braking disk.