| 摘要 |
<p>A method and apparatus for mounting a propeller on a tailshaft. The propeller is arranged on the tailshaft so that a bore in the propeller or a metallic sleeve fixed in the propeller, which tapers towards the rear of the propeller, engages a complementary tapered portion on the tailshaft. A tyre is arranged around the tailshaft in an annular recess in the rear face of the propeller so that the tyre is constrained radially. The forward face of the tyre engages the propeller or a metallic sleeve fixed within the propeller and the rear face of the tyre engages an annular abutment member arranged around the tailshaft. The annular abutment member is constrained against movement towards the rear of the tailshaft by a split shear-ring in an annular groove in the tailshaft to the rear of the annular abutment member. Fluid is pumped into the tyre whereby it expands and urges the propeller and annular abutment member apart, thereby pushing the propeller along the tailshaft and developing a friction grip between the tapered bore in the propeller or in a metallic sleeve within the propeller and the tapered portion of the tailshaft.</p> |
