Self-adaptive assembled multistage adjustable blade operating mechanism

Abstract

The invention provides a self-adaptive assembled multistage adjustable blade operating mechanism which is mounted on a cartridge receiver. The self-adaptive assembled multistage adjustable blade operating mechanism comprises a front mounting seat, a back mounting seat, a torsion bar cross beam, a driving end and a multistage driven mechanism. The front mounting seat and the back mounting seat areseparately mounted at two ends of the cartridge receiver, and the torsion bar cross beam is mounted between the front mounting seat and the back mounting seat; one end of the driving end is connectedto a hydraulic actuating barrel while the other end of the driving end is mounted on the torsion bar cross beam and the driving end is driven by the hydraulic actuating barrel to drive the torsion barcross beam to rotate, and the driving end can slide relatively along the axial direction of the torsion bar cross beam. One end of the driven mechanism is mounted on the cartridge receiver while theother end of the driving mechanism is mounted on the torsion bar cross beam and the driven mechanism is driven by the torsion bar cross beam. As the included angles between the driving end of the torsion bar and the driven ends of stages are adjustable, changes of adjusting angles and ranges of adjustable blades of stages are adapted greatly. The positions of the driven ends of stages are adjustedself-adaptively, so that the force transmission efficiency of the operating mechanism is improved and intervention among parts is avoided.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to an adaptive assembled multi-stage adjustable blade control mechanism. Background technique [0002] In the field of aero-engines, adjustable blades can be used to improve the stable working range of compressors, and are widely used in aero-engines. Generally, there are multiple stages of adjustable blades in the compressor, and the angles adjusted by each stage are different. In order to make the stages work in harmony, a set of control mechanism needs to be designed. [0003] The existing designs mainly include two types, one is the torsion bar type adjustable blade control mechanism, such as the GE90 series. figure 1 It is a schematic diagram of a torsion bar type adjustable vane operating mechanism in the prior art. Such as figure 1 As shown, the hydraulic cylinder 100 drives the torsion bar 110 to rotate, and the driving end and the driven end on the torsion bar 110 rotate at t...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the defect that the adjustable vane operating mechanism in the prior art is easy to cause force transmission loss, and it is easy to cause the connecting rod assembly to interfere with the connected or adjacent parts, and to provide an adaptive assembly multi-stage adjustable vane operating mechanism

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