Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Patent
1996-03-12
1997-11-11
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Combined manufacture including applying or shaping of fluent...
188161, 188171, B23P 1700
Patent
active
056850590
ABSTRACT:
A method to fabricate an integrated elevator drive machine and brake assembly is disclosed. In the method, an outer wall segment of a drive machine housing is cast to form a base of a brake assembly. In casting the outer wall segment to form the base of the brake assembly, a metal blank of higher magnetic permeability is cast or embedded into the casing of the outer wall segment and is machined to form the base. Alternately, the casting of the outer wall segment may be dimensioned and configured so that the casting of the outer wall segment itself forms the base. The outer wall segment is secured for machining a bearing assembly counterbore 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. Precise relative alignment of the grooves, spring bores, stud bores, and bearing assembly counterbore is efficiently achieved by contemporaneous machining operations.
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Cooney Anthony
Ericson Richard J.
Arbes Carl J.
Otis Elevator Company
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