Locomotive rim lubricating rod coating device

The utility model relates to the field of coating devices, and discloses a locomotive rim lubricating rod coating device, which comprises a cart rolling on a track, and a coating component mounted on the cart; the coating assembly comprises a rectangular frame, a rim lubricating rod, a moving block, an abutting block and a spring, the rectangular frame is fixedly installed on the cart, the rim lubricating rod makes contact with the inner wall of the rectangular frame, the moving block and the abutting block are both installed in the rectangular frame in a sliding mode, and the spring is fixedly installed between the moving block and the abutting block. The abutting block is in close contact with the rim lubricating rod; and the prompt regulation and control assembly is arranged on the rectangular frame, the moving block and the abutting block, and the prompt regulation and control assembly comprises a threaded cylinder, an inner support, a driven shaft, a driving shaft, a first bevel gear, a second bevel gear