| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a technique being capable of corresponding to a complicated skew structure without the need of a plurality of kinds of laminated steel plates while proposing a new structure being substituted for a key structure for preventing rotation of a rotor core with respect to a shaft.SOLUTION: A motor comprises: a rotor core 3 laminated with a plurality of laminated steel plates 9; a shaft 4 passing through the rotor core 3; and fixing members 8 fixing the rotor core 3 to the shaft 4 in an axial direction. The shaft 4 is inserted into a through-hole 9b provided in the laminated steel plates 9. A plurality of grooves 14 extending in a circumferential direction and having V-shapes is provided side-by-side in an axial direction on an outer peripheral surface of the shaft 4. The laminated steel plates 9 are press-fitted to the shaft 4. The other side surfaces of the grooves 14 are brought into contact with laminated steel plate end surfaces of a circumferential edge of the through-hole 9b while one side surfaces of the grooves 14 are brought into contact with a through-hole inner peripheral surface of the laminated steel plates 9.</p> |
