DEVICE TO CONTROL POSITION OF BLADES WITH ADJUSTABLE ANGLE OF SETTING Russian patent published in 2006 - IPC F01D9/02 

FIELD: mechanical engineering; turbomachines.

SUBSTANCE: proposed device to control position of blades with adjustable angle of setting in turbomachine has tie-rod, mating devices, locking devices and means for holding said tie-rod on said root of blade for combined turning without play. Mating devices forming hinge joint between first end part of tie-rod and rotary ring are provided with pin passing through first through hole made in first end part of tie-rod and getting into radial socket in rotary ring. Said pin is held in position by locking with ports to pass pins and installed for displacement on rotary ring. Locking devices used to hold second end part of tie-rod on root of adjustable blade are provided with locking screw passing through second through hole made in second end part of tie-rod and getting into groove in root of adjustable blade.

EFFECT: facilitated mounting of device, provision of easy demounting of tie-rods and increased their reliability.

10 cl, 9 dwg