Integrated elevator drive machine and brake assembly

Details Integrated elevator drive machine and brake assembly Integrated elevator drive machine and brake assembly

B - Operations, Transporting

66

B

B66B 11/04 (2006.01) F16D 55/36 (2006.01) F16D 59/02 (2006.01) F16D 65/14 (2006.01)

Patent

CA 2171519

An elevator machine having an outer wall, a rotatable output shaft with a sheave mounted thereon and a brake assembly for braking the output shaft and sheave. The brake assembly has a base integrally formed with the outer wall adjacent the output shaft. A metal base of the brake assembly is cast or embedded within the outer wall. Alternately, the outer wall forms the base of the brake assembly. The integrally formed base has a groove for housing a magnetic coil of a disc brake assembly. The base also has a plurality of bores for housing the brake springs and a plurality of bores for bolting the disc subassembly to the base. The disk brake assembly is fabricated by casting or imbedding a metallic blank of higher magnetic permeability into the casting of the outer wall to form the base thereof. A bearing assembly counterbore is machined into the outer wall and, without unsecuring the wall segment from the machining operation, the base of the disc brake assembly is machined to form the groove for housing a magnetic coil, a plurality of bores to house the brake springs and a plurality of bolt bores.

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