Electromagnetic brake with rotational structure for wear adjustment

An electromagnetic brake is disclosed comprising a brake wheel, at least one friction surface attached to a respective friction plate and urged into frictional engagement with the brake wheel during braking. An electromagnet and an anchor serve to disengage the friction surface from the brake wheel...

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Bibliographic Details
Main Author KUIVAMAKI; ISMO
Format Patent
LanguageEnglish
Published 29.11.1994
Edition5
Subjects
BLASTING
BRAKES
CLUTCHES
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
COUPLINGS FOR TRANSMITTING ROTATION
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:An electromagnetic brake is disclosed comprising a brake wheel, at least one friction surface attached to a respective friction plate and urged into frictional engagement with the brake wheel during braking. An electromagnet and an anchor serve to disengage the friction surface from the brake wheel when a current is supplied to the electromagnet. To compensate for the wear of the friction surface, the anchor is adapted to rotate in adjustment threads and thereby advance towards the magnet. Rotation of the anchor is caused by a coil spring. To maintain an essentially constant clearance between the electromagnet and the anchor when the brake is in the close state, the brake is provided with spring-loaded lugs mounted on a face of the anchor and protruding to predetermined distance towards the electromagnet. The spring-loaded lugs are adapted to limit the movement of the anchor towards the electromagnet when the brake is closed, and are compressed to allow the brake to be disengaged when power is supplied to the electromagnet.
Bibliography:Application Number: US19920976007