Stator structure and assembling method thereof

Abstract

The invention belongs to the technical field of assembly design of a stator of a gas compressor, and particularly relates to a stator structure. The stator structure comprises a stator casing, multiple stator blades and multiple positioning blocks, wherein multiple limit holes distributed in the circumferential direction are formed in the stator casing; the multiple stator blades are arranged in the stator casing; an upper journal is arranged on the upper end surface of each stator blade, and a lower journal is arranged on the lower end surface of each stator blade; each upper journal correspondingly extends into a limit hole; each positioning block is provided with a positioning surface and an arc surface opposite to the positioning surface; a positioning hole is formed in each positioning surface; each lower journal is correspondingly inserted into one positioning hole, and the corresponding lower end surface is attached to the corresponding positioning surface; and the arc surfacesare combined to form an annular surface. Besides, the invention further relates to an assembly method of the stator structure.

Description

technical field [0001] The application belongs to the technical field of compressor stator assembly design, and in particular relates to a stator structure and an assembly method thereof. Background technique [0002] In order for the compressor in the engine to work stably, it is necessary to adjust the air flow 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 synchronous rotation of each stator blade can be adjusted through the operating mechanism to change each stator blade synchronously. The rotation angle of the blades is used to adjust the air flow through the compressor. [0003] Each stator vane in the compressed air is arranged between the stator casing and the inner ring of the stator, and is distributed along the circumferential direction. The upper journal of each stator vane protrudes from the limit hole on the stator casing, and the lower journal extends into th...

AI Technical Summary

Problems solved by technology

[0004] At present, in order to realize the assembly of the stator structure such as the stator casing, the stator inner ring and its various stator blades, the multi-design stator inner ring is composed of two parts that are butted in the axial direction, and is assembled on the upper journal of the stator blades from the stator casing. After the corresponding positioning hole is protruded, the two parts are butted in the axial direction, and various positioning holes are formed between them for the insertion of the lower journal of each stator blade. However, in some cases, the end surface of the lower end of the stator blade is inclined with a certain angle. At this time, in order to easily realize the assembly between the lower journal of each stator blade and the inner ring of the stator, it is often necessary to divide the two parts that make up the inner ring of the stator into multiple sections for assembly. For details, see Figure 1-Figure 2 , the process is cumbersome, the assembly cycle is long, and there are many parts, involving the docking of many parts, high dimensional accuracy requirements, and poor structural stability

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