| 摘要 |
The bearing (18) for the inner end shank (10) of a blade (1) engages with a coupling ring (12) which is common to all the blades of a turbine stage. A bush (19) surrounds the shank and has a pivot (20) which turns in a cavity in the ring with its axis (X') parallel to that of the ring. The bush, which is fixed to the pivot, is free to turn in the ring, and fits between faces (22) which limit its play. The bush fits into a radial hole in the coupling ring which is of slightly greater dimensions than the bush, allowing the bush to make a limited free movement about the axis of the pivot
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