Patent ID: 8764390

Claim:
An assembly mechanism ( 1 ) for a rotor system of an axial turbo engine that includes a central axis of rotation, whereby at least one tension anchor ( 2 ) is provided with a front end and a back end, each end of the tension anchor having a force introduction component, and whereby the rotor system ( 6 ) comprises a compound rotor disk assembly including at least two rotor disks, the rotor disks having a nominal bias in an assembled state, the nominal bias being provided by the tension anchor ( 2 ) when the tension anchor is not placed under tension, whereby the assembly mechanism includes a tensioning tool comprising the following components: a push rod ( 3 ) having a front end and a back end, wherein the front end and back end are disposed coaxially inside the tension anchor ( 2 ) relative to the central axis of rotation of the turbo engine; a pressure device ( 4 ) for introducing a compressive force onto either the back end or the front end of the push rod ( 3 ); wherein the push rod ( 3 ) is connected to the pressure device ( 4 ) at a location proximal to either the front end or on the back end of tension anchor ( 2 ) in such a way that when a compressive force is generated by the pressure device ( 4 ), and applied to the push rod, the tension anchor ( 2 ) is placed under tension, wherein when the tension anchor is placed under tension the tension anchor provides an assembly bias for installation of the tension anchor to the compound rotor disk assembly and wherein the pressure device is configured to extend the length of the tension anchor.