Sew-eurodrive Gmbh & Co

Sew-eurodrive Gmbh and Co. Suddeutsche Elektromotoren-werke

Horst Fischer

Jochen Pfann

G&uuml;nter Becker

An electromagnetically actuated brake is provided comprising a magnetic body, which can energized electromagnetically to produce a magnetic force, and a brake rotor which is mounted on a shaft, in particular the drive shaft of an electric motor, in a rotationally stable manner, so that the shaft can be braked. A spring-loaded armature plate is mounted on the shaft and is movable axially parallel to the long axis of the shaft by the magnetic force produced in the magnetic body against the force of its spring loading whereby in a braked state the armature plate is apposed to the braking surface of the brake rotor. Disposed between the armature plate and the magnetic body or between the armature plate and the brake rotor are first and second dampers to attenuate oscillations of the brake. The first and second damper are located adjacent one another in the axial direction of the shaft and each comprises a material different from that of the other.

Electromagnetically actuated brake

An electromagnetically operated brake with an armature plate (7) axially movable between a magnet body (2) of an electromagnet (1) and a brake disk (8) is proposed. For reducing operating noise, a metallic damping disk (9) with a plurality of elevations (10) is positioned between the armature plate (7) and the magnet body (2).

Electromagnetically operated brake

A shaft centering device for assisting in the coaxial alignment of a drive pinion in relation to a driven member with which the pinion is selectively engageable by intermeshing of respective gear teeth thereon is proposed which comprises a spring ring element having radial projections thereto supported in the driven member and which bears on the gear teeth of the pinion about the periphery of such pinion.

Growing community of inventors

Ubstadt-Weiher, Germany

Horst Fischer