LOCKING UNIT FOR BLADE ROW OF BLADE MACHINE Russian patent published in 2010 - IPC F01D5/32 

FIELD: engines and pumps.

SUBSTANCE: locking unit includes safety element and two parts each of which is provided with possibility of being engaged with projections of peripheral slot, which form undercuts. Safety element prevents both parts from falling out of peripheral slot, is located between them with possibility of rotation about longitudinal axis and made in the form of a key with a head and a plate bit. Bit of the key is provided with possibility of being positioned between two positions owing to rotation. In the first position both parts owing to rotation towards each other have the possibility of simultaneous entering the peripheral slot between its opposite projections. In the second position the key bit is provided with possibility of being adjoined at least to one side surface of one of unfastened parts. The other invention of the group refers to blade machine with the rotor having at least one circumferential slot with undercuts and rotating blades inserted in it. The gap left between the first and the last rotating blades inserted in peripheral slot is covered with the locking unit made as described above.

EFFECT: inventions allow improving reliability of fastening the unit, as well as providing its easy assembly and disassembly.

16 cl, 6 dwg