| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to manufacture a rotor for generators or motors by simple processes easily in a short time, by making a large number of punched materials for constituting the cylindrical sections of shafts for rotating machines into specified shapes for individual parts beforehand, and laminating and integrating these. SOLUTION: The rotor 10 of the inner rotor of a generator or motor is constituted of a cylindrical section 12 having permanent magnets 11 arranged in its peripheral part, a shaft 15 composed of a shaft supporting section 13 and a gear section 14, and a shaft 16 having the other shaft supporting section and a key groove. Here, the cylindrical section 12 is produced by forming discoidal thin board materials, by press-punching having rectangular protrusions 17 radially in their peripheral parts, and forming the board materials integrally with a body interposing adhesive layers formed on the board materials beforehand at the time of lamination. The protrusions 17 form streaks at the time of lamination, and make peripheral-direction supporting ends for the permanent magnets 11. Besides, the shaft supporting section 13 and the gear section 14 of the shaft section 15 are formed by press-punching thin board materials of required outside diameters respectively, and laminating them after that and performing laser welding, and the shaft 16 is formed by a similar method.
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