H - Electricity – 02 – K
Patent
H - Electricity
02
K
188/2, 310/46
H02K 7/102 (2006.01) F16D 55/28 (2006.01) F16D 59/02 (2006.01) F16D 65/12 (2006.01) F16D 65/14 (2006.01) F16D 55/00 (2006.01)
Patent
CA 1258285
ABSTRACT OF THE DISCLOSURE Electric motor with disk brake The electric motor has a disk brake which is de- signed as an electromagnetically operated spring-loaded brake, acts as standstill brake and has a thin, elastic- ally flexible brake disk (12) of spring steel. This brake disk (12) is immovably fixed on the motor shaft (2) between an axially movable, rotationally fixed arma- ture (8) of the electromagnet and a stationary brake part (13) which forms the outer brake housing. The annular stator (4) of the electromagnet surrounds the motor shaft, with formation of a free annular space which offers room for further attaching parts, for example a tachometer generator and/or a phase-angle sensor, or else for a ball bearing carrying the shaft. Borne axially displaceably in the stator (4) is a coil (6) which, in the braking state, is pressed by compression springs (7) against the armature (8), which for its part presses an annular rim zone (12a) of the brake disk (12), with elastic deformation of the same, against the stationary brake part (13). When the coil (6) is excited, the stronger magnetic force pulls the armature (8) back from the brake disk (12). The thin brake disk (12) is characterized by an only small moment of inertia owing to its low weight. (Figure 2)
514643
Fetherstonhaugh & Co.
Mavilor Systemes S.a.
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