| 摘要 |
PURPOSE:To facilitate manufacture and transportation, by key-connecting a spider, a ring, and a rotor core respectively and removably between them. CONSTITUTION:On the outer periphery of a spider 2 fixed firmly on a rotary shaft l, a ring 3 is removably connected with a key 9. The ring 3 is the combined unit of laminating divided rings divided in the axial direction, in the axial direction via a radial ventilating duct 7 between the rings, and of tightening them with fastening screws. On the outer periphery of the ring 3, a rotor core 4 is removably connected with a key 8. The rotor core 4 is the combined unit of laminating core segments via a radial ventilating duct 6 between the cores and putting fastening end plates 10 on both the sides and fastening the segments with fastening screws, and is set so that the internal end of the radial ventilating duct 6 between the cores may be communicated with the external end of the radial ventilating duct 7 between the rings.
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