| 摘要 |
PROBLEM TO BE SOLVED: To realize bolt fastening structure free to reduce manufacturing cost and to shorten a construction period. SOLUTION: A sleeve is to be a straight sleeve 12 molded by increasing its length by a squeeze, making an outside diameter the same or smaller than a bolt hole diameter and compressing a straight sleeve material 12a an inside diameter of which is made larger or the same as a bolt diameter by fastening it by a nut 6 after inserting it in a bolt hole 8 by a bolt 3 in a set in bolt fastening structure formed of the bolt hole 8 passing through a shaft flange 2 and a generator disc 4, the bolt 3 inserted into this bolt hole 8 and on both sides of which screw parts are provided, the nuts 6 respectively screwed in the screw parts of this bolt 3 and the sleeve provided between the bolt hole 8 and the bolt 3. |
