The invention discloses a high-speed self-ventilation
traction motor, and relates to the field of
traction motor heat dissipation. The interior of the
traction motor is a U-shaped air path, and cooling air enters the motor from an air inlet in the top of a base and is divided into three paths, namely a
stator air path, an air gap air path and a rotor air path. And the three paths of cooling air are converged and extracted through a fan arranged at the transmission end of the rotating shaft and are exhausted through air outlets formed in the circumferential direction of the side edge of the transmission end cover. According to the invention, the
stator punching sheets of the shrinkage fit type
stator are integrally tensioned with the buckle sheets by adopting the dovetail grooves at the back, and the buckle sheets are provided with wind paths, so that the weight and
noise of the motor can be reduced. The novel shaft extension structure is adopted, the connection reliability of the
coupling is improved, and the damage rate of repeated disassembly and
assembly operation of the
coupling to shaft extension is reduced. Encapsulation bodies are additionally arranged at notches at two ends of the coil, and sealing
colloid is filled in a gap between a connecting line and a motor base outlet hole, so that the overall insulation performance of the stator is improved. And a paint-dipping special-shaped hard
copper connecting wire is adopted, so that the fault of low
insulation resistance of a wire connecting part is eliminated while the connecting strength is met.