CLAMPING ACCESSORY (VERSIONS) FOR MECHANICAL TREATMENT OF NOZZLE BLADE Russian patent published in 2013 - IPC F01D9/02 B23P15/02 

FIELD: power engineering.

SUBSTANCE: nozzle blade comprises radial inner and outer walls with a section of an aerodynamic surface stretching between the inner and outer walls. The inner wall is made with a mounting element on its surface levelled with a longitudinal central axis via the nozzle blade. The first rotary fastening element of the clamping accessory is made as capable of engagement with the mounting element of the inner wall of the nozzle blade. In the other version the clamping accessory for mechanical treatment of the nozzle blade comprises universal mounting elements on the nozzle blade and the clamping accessory for mechanical treatment. The mounting element on the blade is arranged as capable of levelling the blade with the central axis of a machine, around which the blade rotates during mechanical treatment as the mounting element on the blade is engaged with the mounting element on the clamping accessory for mechanical treatment.

EFFECT: inventions make it possible to simplify a clamping accessory, to increase accuracy of mechanical treatment and also to increase reliability of a nozzle blade.

11 cl, 14 dwg