Supporting wheel repair device based on combined machining of plasma spraying and laser remelting

The utility model discloses a supporting wheel repair device based on combined machining of plasma spraying and laser remelting, which relates to the technical fields of laser machining and surface engineering. The device comprises a plasma control cabinet, a powder feeding device, a gas cylinder I and a power supply, wherein the powder feeding device is used for providing metal powder for the plasma control cabinet; the gas cylinder I is used for supplying gas to the plasma control cabinet; a spraying pistol is connected to the plasma control cabinet; a movable workbench is arranged at the position close to the lower part of the spraying pistol; a laser heat treatment head and a gas cylinder II are arranged above the workbench; the air cylinder II is used for providing protective gas for the laser heat treatment head; a reflector is arranged above the laser heat treatment head; a laser is arranged at a position close to a mirror face of the reflector; and the device also comprises a numerical control system,