Worm gear drive locking apparatus

Details Worm gear drive locking apparatus Worm gear drive locking apparatus

1996-11-18

1998-10-20

Bonck, Rodney H.

Machine element or mechanism

Gearing

Directly cooperating gears

74396, 74398, F16H 116, F16H 3506

Patent

active

058230556

ABSTRACT:
A worm gear is connected to a machine tool component and has teeth mating with teeth on a power driven worm rotatably supported by a housing enclosing the worm. A clamping shoe is supported for sliding movement within a slot in the housing and has a compound curved inner surface positioned to engage the teeth on the worm. A cam shaft is supported for rotation by the housing and extends laterally through a hole within the clamping shoe. A fluid cylinder is connected to rotate the cam shaft for moving the clamping shoe radially between a released position and a clamping position pressing the teeth on the worm against the teeth on the worm gear by slightly deflecting the worm to lock the head from any movement.

REFERENCES:
patent: 2771169 (1956-11-01), Wahlstrom
patent: 3463030 (1969-08-01), Nuccel
patent: 3762234 (1973-10-01), Hoglund
patent: 4220053 (1980-09-01), Barlow et al.
patent: 4653739 (1987-03-01), Moore
patent: 4790202 (1988-12-01), Hayashi et al.
patent: 4796479 (1989-01-01), Wisecaryer
patent: 4843904 (1989-07-01), Moore

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