| 摘要 |
PURPOSE:To obtain the combining force in the axial direction and to obtain large rotating torque by providing annular slots on a rotary shaft corresponding to the position slightly inward from the end surface of each core member, pressing a part of the end surface of the core member, and inserting it to the slot. CONSTITUTION:The solts 13 and 14 are provided at the positions close to the end surfaces 82 and 92 of rotor cores 8 and 9 on the rotary shaft 4. On said rotary shaft 4, are provided intermittent projections 18 which are protruded from the reference circle and extend in the longitudinal direction. In the case of combining, first of all, the rotary shaft 4 is compressed into the hollow part in a yoke 7 and in the core members of the rotor cores 8 and 9. Then, the rotor core 8 is supported by a receiving die 21, and a load is applied to the rotor core 9 with a spring 27. Therefore, the contact interfaces 84 and 94 between the rotors 8 and 9 and the yoke 7 becomes very tight. In this constitution, the force in the axial direction is remained in the contact interface between the yoke and rotor cores after the combination, the electrical output can be improved, and the magnetic noises can be reduced. |
