Overload release mechanism for torque couplings

Details Overload release mechanism for torque couplings Overload release mechanism for torque couplings

1985-01-23

1987-01-20

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Torque responsive

192150, 464 36, F16D 4320

Patent

active

046375023

ABSTRACT:
An overload release mechanism comprising a control plunger, a housing for slidably supporting the control plunger for axial displacement from an advanced coupling position to a retracted release position, the control plunger having a first portion having a first diameter, a second portion having a second smaller diameter and an inclined annular surface joining the first and second portions. The control plunger is maintained at the advanced coupling position until a predetermined axial force is applied and then is axially displaced to the retracted release position by a control ring having an inner diameter substantially the same as the second control plunger diameter made up of a plurality of discrete individual circumferential segments forming a substantially continuous ring when extending around the second control plunger portion. The control ring has a first inclined surface for matingly engaging with the inclined annular control plunger surface when the control plunger is at the advanced coupling position. A pressure ring and the housing include annular surfaces which are tapered towards each other outwardly in the radial direction and the control ring has a second annular surface for matingly engaging with the pressure ring surface, and a third annular surface for matingly engaging with the housing annular surface. A spring urges the pressure ring inclined surface against the second annular control ring surface to forcefully locate the control ring against the inclined annular control plunger surface.

REFERENCES:
patent: 141986 (1873-08-01), Bird et al.
patent: 3552147 (1971-01-01), Johansson et al.
patent: 3659911 (1972-05-01), Kessler et al.
patent: 3762240 (1973-10-01), Adams
patent: 3979925 (1976-09-01), Kato
patent: 3985213 (1976-10-01), Braggins

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