| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor which joins a rotating blade and a support shaft by welding without employing a fitting structure, and is constant in a weld-in depth.SOLUTION: A rotor is formed by integrally connecting a rotating blade 2 and a support shaft 3. The rotating blade 2 and the support shaft 3 are joined to each other by welding not by fitting. A welded part 5 is formed at a joining part of the rotating blade 2 and the support shaft 3 at a constant depth toward a center shaft from an external peripheral face, and a space 41 is formed at a side deeper than the constant depth while an end face of the rotating blade 2 and an end face of the support shaft 3 oppose each other with a clearance. The space 41 is formed of a round recess 42 formed at any one of the rotating blade 2 and the support shaft 3, or at both of them. |
