192 clutches and power-stop control – Clutches – Operators
Patent
1977-03-11
1979-11-27
Goldberg, Howard N.
192 clutches and power-stop control
Clutches
Operators
192111A, F16D 1375, F16D 2710
Patent
active
041756509
ABSTRACT:
The invention is an electromagnetic friction disc clutch with wear compensating means having mutually opposing cooperating friction discs adapted for releasable coupling of a driving and driven rotary component. When this multiple disc friction clutch is energized by the stationary electromagnetic field, the armature moves in a direction so as to contact the stationary magnet body. The interaction between the armature and an adjustment member causes a wear compensated ring to move, and through a pressure plate the adjustment continues until the pressure plate bears against the friction disc pack. The force on the multiple disc pack increases until the torque between the armature and the magnet body is insufficient to overcome the friction between the armature and the adjustment ring. As the rotating armature bears against the stationary magnet body, the contacting surfaces wear away until all of the magnet force is applied to the disc pack. This leaves the smallest possible air gap obtainable between two members that rotate relative to each other, resulting in the highest obtainable output force, i.e., torque obtainable from a magnetic circuit. The adjustment process continues until the disc pack is worn out.
REFERENCES:
patent: 2893528 (1959-07-01), Ryba
patent: 3300008 (1967-01-01), Mendenhall
patent: 3484816 (1969-12-01), Davidson
patent: 3724619 (1973-04-01), Miller
patent: 3744609 (1973-07-01), Miller
Facet Enterprises Inc.
Goldberg Howard N.
VanOphem Remy J.
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