Adjustable stator blade and casing structure

A stator vane and casing technology, which is applied in the field of adjustable stator vane and casing structure, can solve problems such as torsional vibration and adjustable stator vane bending vibration, and achieve the effects of avoiding friction, eliminating interaction, and ensuring accuracy

Pending Publication Date: 2022-05-03
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to provide an adjustable stator blade and casing structure to solve the problem that the adjustable stator blade of the compressor in the prior art is prone to bending vibration and torsional vibration

Method used

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  • Adjustable stator blade and casing structure
  • Adjustable stator blade and casing structure
  • Adjustable stator blade and casing structure

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Embodiment Construction

[0020] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.

[0021] An adjustable stator vane and casing structure, such as figure 2 As shown, it includes adjustable stator vanes, inner casing 3 and outer casing 1. Both the inner casing 3 and the outer casing 1 are integral ring structures and coaxial with the axis of the compressor. The adjustable stator blades pass through the inner casing 3 and the outer casing 1 and protrude from the outer casing 1 . The inner side of the adjustable stator vane is provided with a stator inner ring 5, and the stator inner ring 5 and the adjustable stator vane are connected by bolts, an internal channel is formed between the inner casing 3 and the stator inner ring 5, and the inner casing 3 and the outer casing 1 Form the connotat...

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Abstract

The invention belongs to the field of gas compressor design, and relates to an adjustable stator blade and casing structure, the adjustable stator blade and casing structure comprises an adjustable stator blade, an inner casing and an outer casing, the inner casing and the outer casing are connected with a blade-shaped support plate, a rotating shaft is mounted in a through hole of the blade-shaped support plate, and outer culvert airflow only contacts with the blade-shaped support plate and does not contact with the rotating shaft, so that the rotating shaft is not contacted with the blade-shaped support plate; when the angle is adjusted, power is transmitted to the rotating shaft through the angle adjusting mechanism, the rotating shaft is located in the through hole and is only influenced by the angle adjusting mechanism so as to drive the blade body to rotate, the angle of the blade body can be adjusted, the rectification effect on inner culvert airflow is achieved, and the rotating shaft of the adjustable stator blade is isolated from outer culvert airflow; according to the adjustable stator blade, the interaction between the rotating shaft and external duct airflow is eliminated, meanwhile, the collision and abrasion problem of the rotating shaft is avoided, the mechanical resistance moment of the adjustable stator blade is in a stable state, and the adjusting precision of the adjustable stator blade is guaranteed.

Description

technical field [0001] The application belongs to the field of compressor design, in particular to an adjustable stator vane and casing structure. Background technique [0002] With the emergence of new configuration engines, the number of airflow passages of the engine has begun to increase, which has exceeded the dual passages of conventional turbofan engines—extension and connotation, such as adaptive variable cycle engines and series TBCC combined power engines, airflow passages The number is up to 3. At this time, the blade part of the adjustable stator blade of the compressor with angle adjustment function is placed in the inner channel to play a rectifying role, and the rotating shaft part needs to pass through the double-layer casing and placed in the outer channel to fix the blade and Realize the role of blade rotation, such as figure 1 shown. [0003] Due to the large number of adjustable stator blades of compressors at all levels, a large number of rotating sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/46F04D29/52F04D29/66F04D19/00
CPCF04D29/462F04D29/522F04D29/668F04D19/00
Inventor 徐磊纪福森李惠莲
Owner AECC SHENYANG ENGINE RES INST
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