| 摘要 |
<p>A system for attaching a rotor blade, e.g. a marine turbine blade to a turbine shaft, comprises a hub with a blade engagement portion 108 extending from the hub for engagement with a root portion 102 of a rotor blade. The engagement portion 108 has an alignment aperture (114, figure 3) and an alignment device 120 received within the alignment aperture. The alignment device 120 comprises a housing 130 and a liner 132 within the housing 130 defining an alignment space 141 between the housing 130 and the liner 132. Each of the housing 130 and the liner 132 comprise a plurality of friction plates 142 extending partially across the alignment space 141 to overlap and interleave with each other. This allows the liner to be moved radially with respect to the housing for assembly, but firmly fixed by clamping when the though bolt 160 is tightened.</p> |
