Clutch/brake unit having friction drive output shaft

Details Clutch/brake unit having friction drive output shaft Clutch/brake unit having friction drive output shaft

1994-08-22

1996-01-09

Lorence, Richard M.

192 clutches and power-stop control

Clutch and brake

Sliding operation

403370, 192110R, F16D 6704

Patent

active

054821495

ABSTRACT:
A clutch/brake unit used to transmit torque from an electric motor to a gear reducer, particularly in processes that involve cyclical, start-stop operations. A special output shaft of the clutch/brake has a split portion which projects from the housing and receives a tapered plug within a tapered cavity. A bolt has a threaded connection with the plug to create wedging action which radially expands the split portion of the shaft when the bolt is turned in one direction. This expansion of the shaft creates a frictional coupling with the input hub of the gear reducer. The frictional coupling can be released by turning the bolt in the other direction to relieve the wedging force and allow the split portion of the shaft to contract radially.

REFERENCES:
patent: 3246725 (1966-04-01), Brashear, Jr.
patent: 3508618 (1970-04-01), Walberg
patent: 3561798 (1971-02-01), Redfern
patent: 4553653 (1985-11-01), Schneider
patent: 4630718 (1986-12-01), Hanks
patent: 4926989 (1990-05-01), Bruntz

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