High-heat-dissipation high-precision transmission shaft of roller washing machine motor

The utility model discloses a roller washing machine motor high-heat-dissipation high-precision transmission shaft, which comprises a universal joint, a connecting strip, a first shaft body, a second shaft body, a shaft sleeve, a fixing disc, an auxiliary shaft and a reinforcing ring, the first shaft body, the second shaft body, the shaft sleeve, the fixing disc, the auxiliary shaft and the reinforcing ring are coaxial, the shaft sleeve is a pipe body with openings at the upper end and the lower end, and the side wall of the shaft sleeve is provided with a plurality of vent holes communicated with the interior of the shaft sleeve. An inner spline is arranged on the inner wall of the shaft sleeve, an outer spline matched with the inner spline is arranged on the outer wall of the first shaft body, the first shaft body is inserted into the shaft sleeve from the lower end of the shaft sleeve, a circle of reinforcing ring is arranged at the top end of the outer wall of the shaft sleeve, and a fixing disc is arrang