Patent ID: 6705837
Filing Date: 2004-03-16
Classification: F04D

Abstract:
A combination comprising a rotor for a fluid machine and a clamping tool, said rotor comprising a plurality of blades, each with a blade body defining a front face and a rear face, a plurality of wear-resistant liners each having a backing plate, and a plurality of connector means connecting a respective said liner to each said blade, each said connector means comprising a connector sleeve having first and second ends and attached to the backing plate and having an internal thread, a thrust collar engaging the rear face of the blade body, and an attachment weld comprising at least two tack welds between the connector sleeve and the thrust collar and holding the thrust collar firmly against the rear face of the blade body, the clamping tool comprising a tubular body and a bolt having a head and a shank, the shank having a thread which engages the internal thread of the connector sleeve, said tubular body having at one end a recess to receive the second end of the connector sleeve and at the other end an abutment face against which clamping thrust can be applied by virtue of the head of the bolt.