Stator blade angle adjusting mechanism and stator casing structure with same

Abstract

The invention belongs to the field of gas compressor stator blade angle adjustment design, and particularly relates to a stator casing structure. The stator casing structure is characterized by comprising a stator casing, a plurality of stator blades, a stator blade angle adjusting mechanism and a linkage ring; a plurality of mounting holes distributed in the circumferential direction are formed in the stator casing; the plurality of stator blades are distributed in the stator casing in the circumferential direction; the shaft diameter of each stator blade correspondingly extends out of one mounting hole; the stator blade angle adjusting mechanism comprises a plurality of rocker arms, and one end of each rocker arm is correspondingly connected with one shaft diameter; the linkage ring sleeves the periphery of the stator casing and is hinged to the other end of each rocker arm; each rocker arm can rotate relative to the linkage ring and can slide in the circumferential direction of thelinkage ring; and the linkage ring can move in the axial direction of the stator casing so as to drive all the rocker arms to move, and therefore the stator blades can rotate. In addition, the invention relates to the stator blade angle adjusting mechanism, and the stator blade angle adjusting mechanism has all characteristics of the stator blade angle adjusting mechanism in the stator casing structure.

Description

technical field [0001] The application belongs to the field of angle adjustment design of compressor stator vanes, and in particular relates to a stator vane angle adjustment mechanism and a stator casing structure thereof. Background technique [0002] In order for the compressor in the engine to work stably, it is necessary to adjust the flow of air flowing through the compressor according to the actual situation. For this purpose, the angle of each stator blade in the compressor can be adjusted, and the angle adjustment mechanism can be used to adjust the synchronous rotation of each stator blade to change each stator blade synchronously. The angle of the stator blades is used to adjust the air flow through the compressor. [0003] Each stator vane in the compressed air is arranged between the compressor stator casing and the inner ring, distributed along the circumference, and its shaft diameter corresponds to protruding from the installation hole on the compressor stato...

AI Technical Summary

Problems solved by technology

[0004] 1) It is necessary to design corresponding locking plates, gaskets, joint bearings, split pins, collars and other parts for connection between its various parts. The structure is complex, the number of parts is large, the weight is heavy, the assembly process is cumbersome, the economy is poor, and some parts are easy Wear and tear affect the reliability of the linkage structure of the stator blades;

[0005] 2) It realizes synchronous adjustment of the rotation angle of each stator blade through the rotation of the linkage ring, which has high requirements on the stiffness of the components, and the control of the rotation angle of the stator blade is not accurate enough

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