Bucket and wheel dovetail joint for turbine rotor, has rotor wheel dovetail with hooks, with the slanted crushed surfaces of each hook pair define angles extending away from plane normal to the axis, angles being equal to one another

摘要

The rotor wheel dovetail (36) receives the female dovetail component of the bucket at a direction tangential to the wheel. The wheel dovetail has hooks (28,30,32,34) bisecting the component itself. The slanted crush surfaces (22) of a pair of these hooks define angles extending away from the plane normal to the axis, the angles being equal to one another.