Importance

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Abstract

A brake is disclosed for the end of a shaft such as a motor shaft including a bowl-shaped housing secured to a bowl-shaped cylinder and sandwiching a pressure plate therebetween. A torque plate is reciprocally mounted and rotatably related to the housing by dowel pins which are reciprocally received in sleeve bearings and is biased by springs sandwiched between the torque plate and the housing and retained on spring pins. The torque plate includes circumferentially spaced integral lugs which extend through openings formed in the pressure plate and abut with a push plate of a reciprocal piston. A drive disc which is rotatably related but axially movable relative to the shaft to be braked is located radially inwardly of the lugs and is sandwiched between the torque plate and the pressure plate. The piston is also bowl-shaped and includes a circular plate terminating in an axially extending flange which is reciprocally received in an axially extending flange of the cylinder to define a pressure chamber. The housing and cylinder are closed to seal the internal components of the brake to allow ease of cleaning and to allow its use in food environments and in gas environments.

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First Claim