Overload clutch for limiting a torque moment

Details Overload clutch for limiting a torque moment Overload clutch for limiting a torque moment

1992-06-26

1995-01-24

Stodola, Daniel P.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Overload release coupling

Torque transmitted via a ball

192 56R, 464 39, 464160, F16D 708, F16D 310

Patent

active

053838181

ABSTRACT:
An overload clutch limits the transmittable torque moment by permitting an override when a certain compression force is exceeded. For this purpose a drive shaft meshes with a disk provided with a number of holes in which balls are received. The disk has an axial thickness smaller than the diameter of the balls so that the balls can be uniformly exposed to a compression force exerted by a compression spring through a disk or bushing bearing on the balls. The balls cooperate with an entraining cam disk. As long as the torque to be transmitted is smaller than the compression force, the balls engage cam ribs on the entraining disk and transmit the torque. When the input torque exceeds the compression force, the balls override the cam ribs.

REFERENCES:
patent: 2490172 (1949-12-01), Swahnberg
patent: 3185275 (1965-05-01), Orwin
patent: 3252303 (1966-05-01), Weasler et al.
patent: 3942337 (1976-03-01), Leonard et al.
patent: 4226316 (1980-10-01), Geisthoff
patent: 4294340 (1981-10-01), Kunze
patent: 5005684 (1991-04-01), Fujii
patent: 5054588 (1991-10-01), Thorp et al.

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