Brake assembly for a control rod drive

Details Brake assembly for a control rod drive Brake assembly for a control rod drive

1990-07-30

1992-07-21

Halvosa, George A.

Brakes

Operators

Spring

74 8915, 744248R, 188 67, 188 829, 376232, 376235, 376242, B60T 1304

Patent

active

051315106

ABSTRACT:
A brake assembly is disclosed for selectively preventing rotation of a shaft, such as a shaft used in a control rod drive for a nuclear reactor. The brake assembly includes a stationary base, a rotor disc fixedly connected to the shaft for rotation therewith, and a brake member disposed adjacent to the rotor disc. The rotor disc includes at least one rotor tooth and the brake member includes at least one braking tooth. The member is selectively positionable in a deployed position for allowing the braking tooth to contact the rotor tooth for preventing rotation of the shaft in a first direction while permitting roation in the opposite direction, and in a retracted position for allowing the rotor disc and shaft to rotate in either direction without restraint from the brake member.

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