DEVICE FOR ADJUSTMENT OF GUIDING VANES AND A TURBOMACHINE Russian patent published in 2018 - IPC F01D17/16 F01D9/02 

FIELD: machine building.

SUBSTANCE: invention relates to turbomachines, in particular to the control devices of the guide vanes of a turbomachine. Device is proposed for rotating a plurality of guide vanes, grouped in a ring, around the rotation axes of the guide vanes continuing in the radial direction. Drive shaft (38) is connected to a drive motor, control ring (27) is configured to transfer the rotation of drive shaft (38) to guide blades (21) of guide vane ring (20) for rotating them. Each guide vane (21) has front vane portion (22) and back part (23) of the vane, each of which is rotatable relative to each other about a common pivot axis. Drive shaft (38) is directly connected to one of guide vanes (21) of ring (20) in such a way that parts (22, 23) of guide vane (21) are directly rotatable by drive shaft (38) without interference from control ring (27). Drive shaft (38) is indirectly connected to other guide vanes (21) of ring (20) in such a way that parts (22, 23) of the other guide vanes of ring (20) are indirectly pivotable by drive shaft (38) by control ring (27). Driving levers (28, 29) are configured to act in each case on bearing pin (24) of front part (22) and on support pin (25) of rear part (23) of guide vane (21). Drive levers (28, 29) of the parts are connected to each other by coupling device (30) in such a way that parts (22, 23) of corresponding guide vane (21) are synchronously rotated.

EFFECT: providing rotation of the multi-element guide vanes of the guide vane ring with minimum friction and minimum twisting load.

11 cl, 10 dwg