DEVICE FOR AXIAL FIXATION OF WORKING BLADES IN ROTOR AND GAS TURBINE WITH SUCH DEVICE Russian patent published in 2011 - IPC F01D5/30 F04D29/34 

FIELD: machine building.

SUBSTANCE: device for axial fixation of working blades in rotor consists of collar of shaft including slots wherein there are located working blades and of lug on side surface. An enveloping slot is made on the lug; safety slots in each working blade are positioned radially opposite to the enveloping slot. Leaf packing elements are inserted into an enveloping and safety slots; the elements form end packing ring; also, at least one of them has an orifice. A recess open radially outside and coinciding with the orifice is made in side surface of the collar. The blocking element is fixed by caulking. In side walls of the recess there are made pockets at least partially filled with material of the blocking element after caulking. Another invention of the group refers to a gas turbine containing the above said unit for fixation of the turbine blades.

EFFECT: reliability and simplicity of fixation of working blades.

7 cl, 4 dwg