Coating and drying device for assembly of transmission shaft assembly

The utility model discloses a coating and drying device for assembling a transmission shaft assembly, which comprises a spraying and drying box body, a power mechanism is arranged at the top in the spraying and drying box body, a plurality of fixing pieces are arranged on the power mechanism, a hook piece is buckled on the fixing piece positioned at the lower end, the lower end of the hook piece is rotatably connected with a vertical shaft, and the vertical shaft is connected with a transmission shaft. The vertical shaft is fixedly sleeved with a gear, a spur rack is fixed to one side of the lower end of the power mechanism, the gear is meshed with the spur rack, a connecting piece is fixed to the lower end of the vertical shaft, and assembly equipment is detachably connected to the connecting piece. According to the transmission shaft assembly spraying and drying device, circulating rotation of the transmission belt can be achieved, a worker can conveniently hang new assembly equipment from one end of the sp