| 摘要 |
Rotor stage of an axial turbine for the gas or steam expansion comprising a shaft, adapted to rotate around a main axis, and a plurality of vanes, the shaft having an annular recess extending around the main axis, said shaft further comprising an introduction slot extending laterally from the annular recess, the annular recess being adapted to engage the roots of the vanes and the introduction slot being adapted to allow the insertion of the roots of the vanes into the annular recess, said rotor stage further comprising a coak adapted to be inserted into the introduction slot through an exclusively radial movement, to constrain the roots of the vanes in an operative position inside the annular recess. |
