The invention provides an electromagnetic braking device, a winding engine, and elevator equipment, and a holding force for enabling an armature to be supported to be a movable supporting part for holding can be adjusted with no need to change parts. When the state of the electromagnetic braking device (100) is changed into a braking state or non-braking state, the internal periphery surface of a through hole wrapping the armature slides on the external periphery of an elastic body (151). Along with the spiral advancement of a nut (153) towards an iron core (110), the elastic body (151) is pressed by the nut (153) through a lining pad (152) to expand between the iron core (110) and the nut (153) along the radial direction. The holding force of the supporting part (140) for holding the armature (120) through the elastic body (151) is increased. On the other hand, when the nut (153) withdraws towards a braking drum (10) spirally, the elastic body (151) shrinks along the radial direction. The holding force of the supporting part (140) for holding the armature (120) through the elastic body (151) is decreased.
Electromagnetic braking device, winding engine, and elevator equipment
2015-05-13
Patent
Electronic Resource
English
Elevator electromagnetic braking device and operation method thereof
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