Wood-mizer SHR-T Series, User Manual

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DC Electromagnetic Brake
Design and Principle of Operation
7
7-1 EAdoc051512 DC Electromagnetic Brake
SECTION 7 DC ELECTROMAGNETIC BRAKE
1 - Electromagnet,
2 - Armature complete with brake linings,
3 - Fan,
4 - Retaining bolt
5 - Central spring,
6 - Special washer,
7 - Set screw,
8 - Self-locking nut,
9 - Sealing ring,
10 - Output cable.
7.1 Design and principle of operation
The DC electromagnetic brake type H consists of 3 main subassemblies:
- electromagnet (1),
- armature complete (2)
- cast iron fan (3).
E lectromagnet (1) energised: The DC voltage from the motor applied via the rectifying circuit
causes the attraction of the armature (2) releasing the brake and thus the fan (3) is free to rotate.
Electromagnet (1) de-energised: The electromagnet stops to attract the armature (2) and spring
presses the armature with brake linings (2) against the fan and the brake is thus applied.