Motor, power device and bulldozer

The embodiment of the invention provides a motor, a power device and a bulldozer. The motor is provided with a rotor and a stator, wherein the rotor is provided with a rotating shaft extending along acentral axis, a cylindrical rotor core arranged at the radial outer side of the rotating shaft and two disc-shaped counterweight plates arranged at axial two ends of the cylindrical rotor core; and the stator is arranged opposite to the rotor in the radial direction, the radius of the counterweight plates is less than the radius of the rotor core, and the difference between the radius of the rotor core and the radius of the counterweight plates is greater than an air gap between the radial outer side of the rotor core and the radial inner side of the stator. According to the embodiment of theinvention, the iron loss on the counterweight plates can be reduced in a convenient manner, and the overall efficiency of the motor is improved. 本发明实施例提供种马达、动力装置以及推土机，其中，该马达具有：转子，其具有沿中心轴线延伸的旋转轴、设置于所述旋转轴的径向外侧的圆筒状的转子铁芯和设置于所述圆筒状