MAGNETIC BRAKE

摘要

A magnetic brake capable of stopping smoothly the rotating body and as well as minimizing a braking impact applied to the rotating body through gradually increasing a frictional force generated between a disk portion and a pad portion is disclosed. The magnetic brake is usefully applied to a joint portion of a robot arm for surgery which requires precise controlling since it minimizes a braking impact applied to a rotating body and it is possible to stop smoothly the rotating body with a very simple and compact structure. Also, a magnetic brake is manufactured in a simple and compact structure, therefore a restriction of installing space is minimized, and there is an effect that various devices in which the magnetic brake is applied to be smaller and lighter.

主权项

1. A magnetic brake comprising:
a disk portion installed on a rotating body to rotate in connection with the rotating body; a pad portion disposed away from the disk portion at a predetermined interval, formed by an electromagnet, capable of adjusting a voltage and stopping the rotating body by a frictional force that is generated by towing the disk portion and getting in contact with the disk portion when the voltage is applied; and a buffer means smoothly stopping the rotating body by gradually increasing a contact surface between the pad portion and the disk portion when the disk portion and pad portion get in contact and gradually increasing the frictional force between the disk portion and the pad portion.