ELECTRIC MOTOR WITH SAFETY BRAKE

On the shaft (3) is mounted a cup-shaped braking drum (4), cooperating with radially movable brake shoes (6) actuated by springs (7). A braking magnet (9) provides the lifting of the brake shoes against the spring force. It is energised on motor switching-on, and the brake shoes form the armatures o...

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Bibliographic Details
Main Authors MIHAESCU,GHEORGE M.,RO, SLAIHER,SIGISMUND,RO, SACHELARIE,TOMA,RO
Format Patent
LanguageEnglish
Published 29.07.1985
Edition4
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:On the shaft (3) is mounted a cup-shaped braking drum (4), cooperating with radially movable brake shoes (6) actuated by springs (7). A braking magnet (9) provides the lifting of the brake shoes against the spring force. It is energised on motor switching-on, and the brake shoes form the armatures of the braking magnets (8,9). - Pref. a part of the braking magnet (8) magnetic circuit is formed by a part of the ferromagnetic yoke (10) of a servomotor. The excitation coils of the stator are rated fully or partly as braking magnet for lifting the brake shoes from the brake drum. A braking electromagnet may be mounted outside the motor casing and its movable armature is mechanically connected to the brake shoes for the movement transmission.
Bibliography:Application Number: HU19830002304