DEVICE FOR BRAKING DRUM OF SERVODRIVE OF NUCLEAR REACTOR CONTROL AND PROTECTION SYSTEMS Russian patent published in 2006 - IPC B66D5/02 H02K49/02 

FIELD: electrical and mechanical engineering.

SUBSTANCE: proposed drum braking device contains contactless electric machine with slotless and magnetoelectric inductor coupled with shaft of drum through planetary reduction gear. Armature winding is made in form of bushing connected with armature through screw slots and projections providing possibility of its axial displacement in working clearance under action of torque. Bushing is connected with drum shaft through ring groove, ball lock and planetary stage of reduction gear with crown movable and fixed wheels with different number of teeth, common free planet pinions and sun gear secured on drum shaft. Carrier fitted on shaft engages through additional planet pinions with fixed crown wheel and sun wheel fitted on inductor shaft.

EFFECT: provision of braking device for drum of servodrive.

2 dwg