Mounting arrangement for turbomachines, especially steam turbines

Mounting arrangement for turbomachines, especially steam turbines having a plurality of coaxially juxtaposed turbine stages with shafts rigidly coupled to one another to form a shaft line, the turbine stages having turbine mounts including turbine shaft mounts and turbine housing mounts, the turbine mounts having respective mount housings mounted on foundation locks between the turbine stages and at the ends of the shaft line, the turbine stages having housings mounted at the ends thereof by means of support lugs symmetrically on both sides of the shaft so as to be axially and radially-centrically thermally movable as well as adjustable in x, y, and z direction in horizontal axial planes, and by means of axial centering guiding means in vertical axial planes, on and along the mount housings, respectively, or other foundation parts, the support lugs having support and guide surfaces and the axial centering means having guide surfaces extending in horizontal axial planes (x-z) and in vertical planes oriented plane-parallel to the vertical axial plane (x-y) and, for defining axial fixed points of thermal expansion of the housings, in planes (y-z) normal to the axis, respectively, the direction x being the axial shaft direction, z the horizontal direction transverse to the axis, and y the vertical coordinate running perpendicularly to the x-z plane, comprising respective step-shaped projections formed on the support lugs of the turbine stage housings and jutting axially outwardly and with a step-shaped upwardly offset setback axially inwardly adjacent said projections while forming a horizontal bottom surface serving as a support and guide surface;

• the respective mount housing having support flanges gripping under the support lugs at both sides of the shaft in accordance with the position of the support lugs, said support flanges having a depression for accommodating therein said stepshaped projection and having a stepshaped raised rim axially adjacent said stepshaped projection for engaging in said setback of said support lug;
• mutual engagement of said projection in said depression, and said raised rim in said setback providing clearance sufficient to form laterally accessible gaps;
• adjustment and slide shims insertable in the gap between a roof surface of said raised rim and a bottom surface of said setback for the purpose of slidable height positioning, said shims being securable in position thereof;
• said support lugs being secured against lifting forces and moments in a set height position by means of locks detachably fastened to a cover surface of said support flanges and engaging the stepshaped projections of the support lugs by means of lock projections having contact surfaces which are adjustable in height.