| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotating body having a tensioning key, moving blade and special moving blade firmly fixed thereto. SOLUTION: A rotating body 1 includes a rotor disk 10 which has a moving blade fitting groove 11 annularly provided along an outer circumference and a moving blade lead-in hole 12 provided in the outer circumference and communicated to the moving blade fitting groove 11, a plurality of moving blades 20 which are consecutively provided on the outer circumference and each provided with a blade root 21 fitted in the moving blade fitting groove 11 and a wing body 23 projecting to the outer side of the rotor disk 10, two special moving blades 20A, 20B which each contains a blade root 21 partly fitted in the moving blade fitting groove 11 and a wing body 23 projecting to the outer side of the rotor disk 10 and which block the moving blade lead-in hole 12 while adjoining to each other, and a tensioning key 30 which is inserted between the moving blades 20. The tensioning key 30 is provided with an insertion part whose thickness dimension in the circumferential direction gradually increases from one end on the inner side in the radial direction toward the other end on the outer side in the radial direction. COPYRIGHT: (C)2011,JPO&INPIT
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