Patent ID: 6571471
Filing Date: 2003-06-03
Classification: B23P,B25B,F01D,F05D,Y10T

Abstract:
A method for demounting a turbine blade which is fastened in an axially oriented groove of a rotor or stator of a turbomachine by means of a blade root, the method comprising drawing the turbine blade out of the groove in an axial direction by means of a device which engages on the blade root of the turbine blade, where the operation of drawing the turbine blade further comprises applying a tensile force acting in the axial direction by means of a piston driven by a hydraulic cylinder and which engages directly or indirectly on the blade root of the turbine blade where supports are present next to the blade root of the turbine blade on the rotor or stator, on which the hydraulic cylinder is supported, so that the hydraulic cylinder transmits to the piston the tensile force acting in the axial direction; andintroducing a hooked slide into a gap located between the blade base and the groove bottom and anchoring the hooked slide to the blade root there by means of at least one hook which is located in at least one clearance located at the blade base, and the turbine blade is drawn out by means of the hooked slide and the piston fastened to the latter.