Automatic readjusting assembly for an electromagnetic clutch or

Details Automatic readjusting assembly for an electromagnetic clutch or Automatic readjusting assembly for an electromagnetic clutch or

1989-12-14

1991-02-19

Lorence, Richard

192 clutches and power-stop control

Elements

Wear compensators

192 84B, 188 718, 188196P, F16D 1375, F16D 2714, F16D 6554

Patent

active

049935321

ABSTRACT:
An automatic air gap readjusting assembly in a clutch or brake unit is operated by electromagnetic and spring forces. A drive shaft 3 frictionally mounts, by a plurality of O-rings, an adjustment member. The adjustment member is readjusted by a contact or armature plate such that the air gap between the armature plate and the electromagnetic mechanism attracting the armature plate will remain constant, i.e. the stroke of the armature plate will remain constant. Torque is transmitted from the drive shaft to the armature plate via a radial flange having a plurality of axially movable torque transmitting bolt assemblies, which are clamped to an annular spring member secured to the armature plate. This arrangement allows for continuous readjustment for wear of the air gap between the armature plate and the electromagnetic mechanism; furthermore, the readjustment always takes place under uniform force conditions despite increasing wear.

REFERENCES:
patent: 2705058 (1955-03-01), Harter
patent: 3221854 (1965-12-01), Jaeschke et al.
patent: 3391768 (1968-06-01), Fixari
patent: 3394787 (1968-07-01), Fitzgerald
patent: 3458022 (1969-07-01), Reiff
patent: 3762522 (1973-10-01), Kirschling
patent: 3857468 (1974-12-01), Iritoro et al.
patent: 4640400 (1987-02-01), Nakane et al.

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