290results about How to "Large braking torque" patented technology

The invention discloses a vehicle wheel rim composite brake device integrating permanent magnet braking and friction braking, and belongs to the field of vehicle braking. A support base ring is coaxially sleeved with an integrated brake disc, the support base ring is coaxially and fixedly sleeved with a magnetic circuit guide frame, a plurality of magnetic conductive pole pieces are evenly embedded in the side wall of the magnetic circuit guide frame in the circumferential direction, the support base ring is sleeved with a movable magnet support through a bearing, the support base ring is fixedly sleeved with a fixed magnet support, a plurality of movable magnets are evenly and fixedly connected to the outer wall of the movable magnet support in the circumferential direction, a plurality of fixed magnets are evenly and fixedly connected to the outer wall of the fixed magnet support in the circumferential direction, the movable magnets and one fixed magnet are arranged left and right inthe axial direction, the fixed magnets and the movable magnets which are opposite in the axial direction at the initial position are opposite in magnetizing direction, the movable magnets are rotatedto enable each movable magnet and the corresponding fixed magnet opposite to the movable magnet in the axial direction to be the same in magnetizing direction during permanent magnet braking, brakingenergy is shared through non-contact permanent magnet braking, and friction braking abrasion is reduced.