Electromagnetically controlled, resettable high-speed shaft disc

Details Electromagnetically controlled, resettable high-speed shaft disc Electromagnetically controlled, resettable high-speed shaft disc

1978-01-05

1980-11-11

Herrmann, Allan D.

192 clutches and power-stop control

Elements

Locks

192 56R, 192 82T, 192 84C, 192 93C, F16D 1104, F16D 2710, F16D 4325

Patent

active

042327725

ABSTRACT:
The disconnect arrangement for high speed aircraft generators includes disconnectable rigid, torque transmitting spring loaded curvic gears coupled between the driving and driven shafts. A plurality of flexibly supported sear members mounted on the driven shaft engage the movable member of the curvic gears. The sears have tapered faces which engage correspondingly tapered shoulders on the movable curvic gear member. The sears are latched to hold the curvic gear members in contact by the armature of an electromagnet. The armature normally rides over the top of the gears maintaining them in contact with the tapered shoulder of the curvic gear member. When the electromagnetic armature is actuated to disengage the driving and driven shafts, the armature moves axially. This removes the retaining force from the tapered sears, allowing them to flex outwardly. The natural separating force of the spring loaded curvic gear, causes the sear to ride upwardly on the tapered surface of the curvic shoulder until the sears and the shoulder disengage. This allows the spring loaded gears to separate terminating transmission of torque from the driving to the driven shaft.

REFERENCES:
patent: 614951 (1898-11-01), Hoffmann
patent: 2401864 (1946-06-01), Gerst
patent: 2887201 (1959-05-01), Willis
patent: 3080031 (1963-03-01), Young
patent: 3306409 (1967-02-01), Giometti

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