Rotor iron core for speed change of electric automobile

The utility model relates to the technical field of rotor iron cores, and discloses a rotor iron core for speed change of an electric automobile, which comprises a rotor iron core body, wire slots are distributed on the outer side of the rotor iron core body in an annular array manner by taking the center as a base point, and a limiting sleeve is sleeved on the outer side of the rotor iron core body in a sliding manner. According to the utility model, the rectangular wire duct is designed outside the rotor iron core body, so that the coil can be preliminarily wound and assembled, the inconvenience during the installation of the original arc groove is improved, and the limiting sleeve which is clamped and sleeved is designed in cooperation with the rotor iron core body, and the plugboard is used to correspondingly cooperate with the wire duct, so that the coil can be limited and protected. The fastening plate with the hook plate, the threaded mounting groove and the fastener are used for fastening and matching