| 摘要 |
PROBLEM TO BE SOLVED: To fix a rotor core on a rotor shaft by a predetermined fastening force independently of dimensional variation of an axial direction of the rotor core in a rotary electric machine rotor.SOLUTION: A rotary electric machine rotor 10 includes: a rotor core 20 having a center hole pierced into a contour of a rotor shaft 30 composed of a laminated magnetic substance thin plate; the rotor shaft 30 including a catching part 32 abutted on an axial-direction one-end face of the rotor core 20 on the one-end side and an outer diameter screw structure 44 on the other end side; a nut part 50 to be engaged with the outer diameter structure 44 of the rotor shaft 30; and a washer 70 arranged between the other end of the rotor core 20 and one end of the nut part 50. In a state where the rotor core 20 is fixed on the rotor shaft 30 by fastening the nut part 50 on the outer diameter screw structure 44 of the rotor shaft 30, a position of a contact face between the washer 70 and the rotor core 20 in the rotor shaft 30 is located on the axial-direction one-end side with respect to the outer diameter screw structure 44. |
