Gas compressor stationary blade adjusting mechanism and gas compressor test piece

Abstract

The embodiment of the invention provides a gas compressor stationary blade adjusting mechanism and a gas compressor test piece. The gas compressor stationary blade adjusting mechanism comprises a mounting base, an eccentric shaft assembly, a first driving ring and a second driving ring. The mounting seat is provided with a first side and a second side which are oppositely arranged along a first direction, and the mounting seat is provided with a mounting hole extending along the first direction; the eccentric shaft assembly penetrates into the mounting hole, the two ends of the eccentric shaft assembly extend out of the mounting hole, and central shafts at the two ends of the eccentric shaft assembly are eccentrically arranged; the first driving ring and the second driving ring abut against the two ends of the eccentric shaft assembly respectively. The corresponding driving rings are arranged on the two sides of the mounting base to adjust the angles of the two sets of blades in a matched mode, and the space of an axial adjusting mechanism is saved. And meanwhile, the eccentric shaft assembly arranged on the mounting seat in a penetrating manner is combined with the driving ring to adjust the two groups of blade structures respectively, so that the surge risk is effectively reduced. Therefore, the gas compressor stationary blade adjusting mechanism has the advantages that the surge risk is reduced, and the structure is compact.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gas turbine technology, in particular to a compressor stator vane adjusting mechanism and a compressor test piece with the same. BACKGROUND

[0002] The compressor stator vane adjusting mechanism can change the installation angle of the stator vane according to the engine operating condition. The main purpose of applying the adjustable stator vane on the engine is to improve the stability of the engine, thereby preventing the occurrence of surge problems.

[0003] In the related art, the compressor test piece needs to adjust multiple groups of vanes during implementation. However, the compressor test piece needs to be scaled down from the original compressor. Therefore, the axial space of the compressor test piece is limited, the installation space of the adjusting mechanism with an independent axial distribution will be affected, which reduces the adjustable stage number, thereby affecting the compressor surge margin and the test effect. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art. To this end, an embodiment of the present application proposes a compressor stator vane adjusting mechanism. The compressor stator vane adjusting mechanism has the advantages of reducing surge, compact structure, and good test effect.

[0005] An embodiment of the present application proposes a compressor stator vane adjusting mechanism and a compressor.

[0006] Another embodiment of the present application proposes a compressor test piece.

[0007] The compressor stator vane adjusting mechanism of the embodiment of the present application comprises a mounting seat, an eccentric shaft assembly, a first driving ring, and a second driving ring.

[0008] The mounting seat has a first side and a second side arranged opposite in a first direction, and has a mounting hole extending in the first direction; the eccentric shaft assembly passes through the mounting hole, both ends of the eccentric shaft assembly extend out of the mounting hole, and the center axes of both ends of the eccentric shaft assembly are eccentrically arranged; the first driving ring and the second driving ring are respectively in abutment with both ends of the eccentric shaft assembly at one end in a second direction, the first driving ring and the second driving ring are adjustably connected with the mounting seat in the second direction, and the first direction and the second direction are arranged vertically.

[0009] The compressor stator vane adjustment mechanism of this invention, by setting a first drive ring and a second drive ring on the first and second sides of the mounting base of the compressor stator vane adjustment mechanism respectively, with each set of drive rings controlling a set of blades, ensures that each set of blades receives a uniform and precise adjustment force. This helps to avoid blade deformation or wear caused by uneven force on one side, thereby improving the adjustment accuracy of the compressor test piece. This design can provide more precise blade angle control, uniform force distribution, and faster response speed, helping the compressor test piece maintain stable operation under various operating conditions, and even maintaining a high surge margin under extreme conditions.

[0010] Furthermore, by setting two sets of drive rings at each end of the eccentric shaft, the limited space can be utilized more effectively. This design allows multiple functional components to be integrated into a smaller area, reducing the overall volume. This not only significantly improves the system's compactness, but the space saved also significantly improves the overall system efficiency and layout flexibility. This design, while achieving concentric adjustment, saves axial space, ensuring that when the compressor test piece is scaled down, the number of adjustable stages remains unchanged, while maintaining the compressor's surge margin and guaranteeing test results.

[0011] Therefore, the compressor stator vane adjustment mechanism of the present invention has the advantages of reducing surge, having a compact structure, and achieving good test results.

[0012] In some embodiments, the eccentric shaft assembly includes a first ring body, a second ring body, and an eccentric shaft, the eccentric shaft passing through the mounting hole, both ends of the eccentric shaft extending out of the mounting hole in the first direction, and the first ring body and the second ring body respectively fitted onto both ends of the eccentric shaft.

[0013] In some embodiments, the eccentric shaft includes a first mounting section, a fixed section, and a second mounting section connected in sequence. The fixed section passes through the mounting hole, and the first mounting section and the second mounting section extend out of the mounting hole. The central shafts of the first mounting section, the fixed section, and the second mounting section are eccentrically arranged. The first ring is fitted onto the first mounting section, and the second ring is fitted onto the second mounting section.

[0014] In some embodiments, the projections along the first direction, the projections of the first mounting segment and the second mounting segment both fall within the projection of the fixed segment.

[0015] In some embodiments, the central axis of the first mounting segment and the central axis of the second mounting segment are located on both sides of the central axis of the fixed segment.

[0016] In some embodiments, the fixed segment is configured with a multi-level increasing radius.

[0017] In some embodiments, the compressor stator vane adjustment mechanism further includes a positioning member and a fixing member. Each of the first mounting section and the second mounting section has a first mating part at one end connected to the fixing section, and each of the first mounting section and the second mounting section has a second mating part at the other end. The first ring is rotatably fitted on the first mounting section, and the second ring is rotatably fitted on the second mounting section. The positioning member is disposed on the first mating part, and the fixing member is fixed on the second mating part.

[0018] In some embodiments, the mounting base has a body extending in a second direction, the body having grooves at both ends where the mounting hole is located, and a portion of the positioning member is fitted into the grooves.

[0019] In some embodiments, the positioning member is threadedly engaged with the first mating part, and the fixing member is threadedly engaged with the second mating part.

[0020] In some embodiments, the first ring body is rotatably disposed on the first mounting section, and the second ring body is rotatably disposed on the second mounting section.

[0021] In some embodiments, each of the first ring body and the second ring body has a limiting groove on its outer peripheral wall, a portion of the first driving ring extends into the limiting groove of the first ring body, and a portion of the second driving ring extends into the limiting groove of the second ring body.

[0022] In some embodiments, a guide protrusion is provided on one of the wall surface of the mounting hole and the outer wall surface of the eccentric shaft, and a guide groove is provided on the other of the wall surface of the mounting hole and the outer wall surface of the eccentric shaft. The guide protrusion is disposed in the guide groove, and the guide groove is a spiral groove.

[0023] In some embodiments, the first drive ring and the second drive ring are configured as arc segments.

[0024] In some embodiments, the compressor stator vane adjustment mechanism of the present invention further includes a first adjusting nut and a second adjusting nut. Each of the first adjusting nut and the second adjusting nut is positionally adjustable and detachably disposed on the mounting base. The first adjusting nut extends radially along the first drive ring, and the end of the first adjusting nut can abut against the first drive ring. The second adjusting nut extends radially along the second drive ring, and the end of the second adjusting nut can abut against the second drive ring.

[0025] The compressor of this invention includes a first stator blade group, a second stator blade group, a casing, and a compressor stator blade adjustment mechanism according to any one of the above. The first drive ring and the second drive ring are concentrically arranged with the casing. One end of the first stator blade group and the second stator blade group is sleeved inside the casing. The first drive ring and the second drive ring are sleeved on the outside of the casing and are configured to rotate between a first position and a second position along the circumferential direction of the casing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the combined stationary blade adjustment mechanism according to an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the compressor stator vane adjustment mechanism according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the mounting base according to an embodiment of the present invention.

[0029] Figure 4 This is a cross-sectional view of the mounting base according to an embodiment of the present invention.

[0030] Figure 5 This is a cross-sectional view of the eccentric shaft according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the structure of the fixed segment in an embodiment of the present invention.

[0032] Figure 7 This is an isometric view of the eccentric shaft according to an embodiment of the present invention.

[0033] Figure label:

[0034] Adjustment mechanism 100; First stator blade group 200; Second stator blade group 300;

[0035] Mounting base 1; Mounting hole 11; Guide protrusion 12; Groove 13;

[0036] Eccentric shaft assembly 2; First ring 21; Second ring 22; Limiting groove 221;

[0037] Eccentric shaft 23; First mounting section 231; Fixed section 232; Guide groove 2321; Second mounting section 233;

[0038] First drive ring 3;

[0039] Second drive ring 4;

[0040] Positioning component 51; Fixing component 52;

[0041] Pulley baffle 6;

[0042] First adjusting nut 71; Second adjusting nut 72. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] The following is for reference. Figures 1-7 The compressor stator vane adjustment mechanism 100 and the compressor test piece are described according to embodiments of the present invention.

[0045] The compressor stator vane adjustment mechanism 100 of this embodiment includes a mounting base 1, an eccentric shaft assembly 2, a first drive ring 3, and a second drive ring 4.

[0046] The mounting base 1 is along the first direction (i.e., the axial direction of the compressor, for example, Figure 2 The left and right directions shown have a first side that is relatively set (e.g., Figure 2 The left side shown) and the second side (e.g., Figure 2 (As shown on the right side), the mounting base 1 has a mounting hole 11 extending in a first direction; the eccentric shaft assembly 2 passes through the mounting hole 11, with both ends of the eccentric shaft assembly 2 extending out of the mounting hole 11, and the central shafts of both ends of the eccentric shaft assembly 2 being eccentrically positioned; the first drive ring 3 and the second drive ring 4 are in a second direction (i.e., the radial direction of the compressor, for example, Figure 2 One end of the first drive ring 3 (in the up and down direction shown in the figure) abuts against both ends of the eccentric shaft assembly 2, and the first drive ring 3 and the second drive ring 4 are adjustablely connected to the mounting base 1 in the second direction position. The first direction and the second direction are set perpendicularly.

[0047] The compressor stator vane adjustment mechanism 100 of this invention, by setting a first drive ring 3 and a second drive ring 4 on the first and second sides of the mounting base 1 of the compressor stator vane adjustment mechanism 100 respectively, with each set of drive rings corresponding to and controlling a set of blades, ensures that each set of blades can obtain a uniform and precise adjustment force. This allows the eccentric shaft assembly 2 to bear force from both sides, helping to avoid blade deformation or wear caused by uneven force on one side, thereby improving adjustment accuracy. This design provides more precise blade angle control, uniform force distribution, and faster response speed, helping the compressor test piece maintain stable operation under various operating conditions, and even maintaining a high surge margin under extreme conditions.

[0048] Furthermore, by setting two sets of drive rings at each end of the eccentric shaft 23, the limited space can be utilized more effectively. This design allows multiple functional components to be integrated into a smaller area, reducing the overall volume. This not only significantly improves the system's compactness, but the space saved also significantly improves the system's overall efficiency and layout flexibility. This design, while achieving concentric adjustment, saves axial space, ensuring that the compressor test specimen maintains its surge margin while keeping the number of adjustable stages unchanged when scaled down, thus guaranteeing the test results.

[0049] Therefore, the compressor stator vane adjustment mechanism 100 of the present invention has the advantages of reducing surge, having a compact structure, and achieving good test results.

[0050] like Figure 2 and Figure 5 As shown, the eccentric shaft assembly 2 includes a first ring body 21, a second ring body 22 and an eccentric shaft 23. The eccentric shaft 23 passes through the mounting hole 11, and both ends of the eccentric shaft 23 extend out of the mounting hole 11. The first ring body 21 and the second ring body 22 are respectively fitted onto the two ends of the eccentric shaft 23.

[0051] The compressor stator vane adjustment mechanism 100 of this embodiment divides the eccentric shaft assembly 2 into a first ring 21, a second ring 22, and an eccentric shaft 23. The first ring 21 and the second ring 22 are respectively fitted onto both ends of the eccentric shaft 23. This effectively disperses the load applied to the eccentric shaft 23, reducing the impact of concentrated loads at a single point and lowering the risk of bending or breakage of the eccentric shaft 23. Consequently, this helps to extend the service life of the structure.

[0052] Optionally, the eccentric shaft 23 can be an eccentric pin.

[0053] like Figure 2 and Figure 5 As shown, the eccentric shaft 23 includes a first mounting section 231, a fixed section 232, and a second mounting section 233 connected in sequence. The fixed section 232 passes through the mounting hole 11, and the first mounting section 231 and the second mounting section 233 extend out of the mounting hole 11 respectively. The central shafts of the first mounting section 231, the fixed section 232, and the second mounting section 233 are eccentrically arranged. The first ring body 21 is fitted on the first mounting section 231, and the second ring body 22 is fitted on the second mounting section 233.

[0054] The compressor stator vane adjustment mechanism 100 of this embodiment includes a first mounting section 231, a fixed section 232, and a second mounting section 233 connected in sequence via an eccentric shaft 23. The central axes of the first mounting section 231, the fixed section 232, and the second mounting section 233 are eccentrically positioned. This three-section eccentric shaft 23 design allows for simultaneous adjustment of both the eccentricity and angle, resulting in more complex motion trajectories. Furthermore, it enables the first drive ring 3 and the second drive ring 4 to independently adjust their center positions, achieving concentricity with the casing and improving their respective adjustment accuracy.

[0055] like Figure 2 , Figure 5 and Figure 7 As shown, along the first direction, the projections of the first mounting segment 231 and the second mounting segment 233 both fall within the projection of the fixed segment 232.

[0056] The compressor stator vane adjustment mechanism 100 of this embodiment of the invention improves the ease of installing the eccentric shaft 23 by ensuring that the projections of the first mounting section 231 and the second mounting section 233 along the first direction both fall within the projection of the fixed section 232.

[0057] The line L1 connecting the central axis of the first mounting section 231 and the central axis of the fixed section 232, and the line L2 connecting the central axis of the second mounting section 233 and the central axis of the fixed section 232, and the included angle between L1 and L2 can be acute, right or obtuse.

[0058] like Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the compressor stator vane adjustment mechanism 100 of this embodiment of the invention further includes a positioning member 51 and a fixing member 52. Each of the first mounting section 231 and the second mounting section 233 has a first mating part on one end connected to the fixing section, and the other end of each of the first mounting section 231 and the second mounting section 233 has a second mating part 51. The fixing member 52 is fixed on the second mating part.

[0059] In the compressor stator vane adjustment mechanism 100 of this embodiment, a first ring 21 is rotatably fitted onto a first mounting section 231, and a second ring 22 is rotatably fitted onto a second mounting section 233, via a positioning member 51. The first ring 21 and the second ring 22 transmit force by rolling instead of sliding, which can greatly reduce frictional resistance and thus improve force transmission efficiency. Moreover, the rotational engagement helps to achieve more precise angle adjustments, especially when fine adjustments are required. For example, in the compressor stator vane adjustment mechanism 100, the first ring 21 and the second ring 22 can make the angle adjustment of the blade group more accurate, ensuring that each blade group can obtain the optimal working position.

[0060] Moreover, the rings (first ring 21 and second ring 22) can effectively distribute the load applied to the eccentric shaft 23, reduce the impact of single-point concentrated load on the eccentric shaft 23, and reduce the risk of the eccentric shaft 23 bending or breaking.

[0061] Specifically, the positioning component 51 can determine the axial position of the eccentric pin so that the center position of the two drive rings is adjusted. When the drive rings function normally, they can drive the same blade group to rotate accurately at the same time, thereby achieving functions such as anti-surge during the test.

[0062] The compressor stator vane adjustment mechanism 100 of this embodiment of the invention also includes a pulley baffle 6, which abuts against the end of the first ring body 21 opposite to the mounting base 1.

[0063] Optionally, both the first ring 21 and the second ring 22 are pulley structures. The combination of the pulley and the eccentric shaft 23 enhances the rigidity and stability of the overall structure, making it more capable of withstanding complex working conditions and high-load environments. Compared to direct contact, pulleys can more effectively convert the motion of the drive ring into the required mechanical action.

[0064] like Figure 2 and Figure 4 As shown, the mounting base 1 has a base body extending in the second direction, and the base body has grooves 13 at both ends where mounting holes 11 are provided, and a portion of the positioning member 51 is placed in the grooves 13.

[0065] The compressor stator vane adjusting mechanism 100 of this embodiment of the invention features a base body with grooves 13 at both ends of the mounting hole 11 (both ends of the mounting hole 11 along its longitudinal direction), and a portion of the positioning member 51 is placed within the grooves 13. This not only limits the positioning of the first ring 21 and the second ring 22, but also helps save space occupied by the positioning member 51 in the first direction, thereby contributing to the miniaturization of the compressor stator vane adjusting mechanism 100.

[0066] For example, the positioning element 51 can be a positioning nut, which engages with the threads on the first mounting section 231 and the second mounting section 233. Therefore, the threaded connection structure has the advantages of simple structure, good stability, and ease of installation.

[0067] Optionally, the second mating part of each of the first mounting section 231 and the second mounting section 233 is threaded, and the fixing member 52 is a fixing nut, which is fixed to the second mating part of each of the first mounting section 231 and the second mounting section 233.

[0068] like Figure 2 As shown, each of the first ring body 21 and the second ring body 22 has a limiting groove 221 on its outer peripheral wall. A portion of the first driving ring 3 extends into the limiting groove 221 of the first ring body 21, and a portion of the second driving ring 4 extends into the limiting groove 221 of the second ring body 22.

[0069] The compressor stator vane adjustment mechanism 100 of this embodiment of the invention has a limiting groove 221 on the outer peripheral wall of each of the first ring body 21 and the second ring body 22. A part of the drive ring extends into the limiting groove 221. When the drive ring rotates, the first ring body 21 also rotates synchronously, which improves the convenience of adjustment of the adjustment mechanism 100.

[0070] Optionally, both the first ring 21 and the second ring 22 are pulley structures.

[0071] like Figure 2 , Figure 3 and Figure 6 As shown, a guide protrusion 12 is provided on one of the wall surface of the mounting hole 11 and the outer wall surface of the eccentric shaft 23, and a guide groove 2321 is provided on the other of the wall surface of the mounting hole 11 and the outer wall surface of the eccentric shaft 23. The guide protrusion 12 is disposed within the guide groove 2321, and the guide groove 2321 is a spiral groove. In other words, a guide protrusion 12 is provided on the wall surface of the mounting hole 11, and a guide groove 2321 is provided on the outer wall surface of the eccentric shaft 23, or a guide protrusion 12 is provided on the outer wall surface of the eccentric shaft 23, and a guide groove 2321 is provided on the wall surface of the mounting hole 11.

[0072] The compressor stator vane adjustment mechanism 100 of this embodiment of the invention provides a guide protrusion 12 and a guide groove 2321 between the mounting base 1 and the eccentric shaft 23. While the eccentric shaft 23 moves along the first direction, it can also rotate circumferentially, thereby adjusting the position of the first drive ring 3 and the second drive ring 4. This can significantly improve the motion diversity and flexibility of the mechanical system, while also improving the adjustment accuracy and increasing the stability and reliability of the system.

[0073] The first drive ring 3 and the second drive ring 4 are set up with arc segments, and the segmented drive rings facilitate actual installation.

[0074] The compressor stator vane adjustment mechanism of this embodiment further includes a first adjusting nut 71 and a second adjusting nut 72. Each of the first adjusting nut 71 and the second adjusting nut 72 is positionally adjustable and detachably mounted on the mounting base 1. The first adjusting nut 71 extends radially along the first drive ring 3, and its end can abut against the first drive ring 3. The second adjusting nut 72 extends radially along the second drive ring 4, and its end can abut against the second drive ring 4. This improves the accuracy and convenience of installing the first drive ring 3 and the second drive ring 4.

[0075] Optionally, both the first drive ring 3 and the second drive ring 4 are spliced ​​together with multi-arc segments. During installation, each arc segment can be positioned and adjusted by multiple first adjusting nuts 71 and multiple second adjusting nuts 72. Then, when the arc segment splicing operation is completed, the first adjusting nuts 71 and multiple second adjusting nuts 72 can be removed.

[0076] The compressor of this invention includes a first stator blade group 200, a second stator blade group 300, a casing, and a compressor stator blade adjustment mechanism 100 according to any one of the above. The first drive ring 3 and the second drive ring 4 are concentrically arranged with the casing. One end of the first stator blade group 200 and the second stator blade group 300 is sleeved inside the casing. The first drive ring 3 and the second drive ring 4 are sleeved on the outside of the casing and are configured to rotate between a first position and a second position along the circumferential direction of the casing.

[0077] Therefore, the compressor of the present invention has the advantages of reduced surge, compact structure, and good test results.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0081] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0082] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A compressor stator vane adjustment mechanism, characterized in that, include: Mounting base, the mounting base having a first side and a second side disposed opposite to each other along a first direction, the mounting base having a mounting hole extending along the first direction; An eccentric shaft assembly, wherein the eccentric shaft assembly passes through the mounting hole, both ends of the eccentric shaft assembly extend out of the mounting hole, and the central shafts at both ends of the eccentric shaft assembly are eccentrically set; A first drive ring and a second drive ring, wherein one end of the first drive ring and the second drive ring in a second direction respectively abuts against both ends of the eccentric shaft assembly, and the first drive ring and the second drive ring are adjustablely connected to the mounting base in the second direction, wherein the first direction and the second direction are perpendicular to each other.

2. The compressor stator vane adjustment mechanism according to claim 1, characterized in that, The eccentric shaft assembly includes a first ring body, a second ring body, and an eccentric shaft. The eccentric shaft passes through the mounting hole, and both ends of the eccentric shaft in the first direction extend out of the mounting hole. The first ring body and the second ring body are respectively fitted onto both ends of the eccentric shaft.

3. The compressor stator vane adjustment mechanism according to claim 2, characterized in that, The eccentric shaft includes a first mounting section, a fixed section, and a second mounting section connected in sequence. The fixed section passes through the mounting hole, and the first mounting section and the second mounting section extend out of the mounting hole. The central shafts of the first mounting section, the fixed section, and the second mounting section are eccentrically arranged. The first ring is fitted onto the first mounting section, and the second ring is fitted onto the second mounting section.

4. The compressor stator vane adjustment mechanism according to claim 3, characterized in that, The projections along the first direction, the projections of the first mounting segment and the second mounting segment both fall within the projection of the fixed segment. And / or, the fixed segment is set with a multi-level increasing radius.

5. The compressor stator vane adjustment mechanism according to claim 4, characterized in that, The central axis of the first mounting section and the central axis of the second mounting section are located on both sides of the central axis of the fixed section.

6. The compressor stator vane adjustment mechanism according to claim 3, characterized in that, It also includes a positioning component and a fixing component. Each of the first mounting segment and the second mounting segment has a first mating part at one end connected to the fixing segment, and each of the first mounting segment and the second mounting segment has a second mating part at the other end. The first ring body is rotatably fitted on the first mounting segment, and the second ring body is rotatably fitted on the second mounting segment. The positioning component is provided on the first mating part, and the fixing component is fixed on the second mating part.

7. The compressor stator vane adjustment mechanism according to claim 6, characterized in that, The mounting base has a seat body extending in a second direction, and the seat body has a groove at both ends where the mounting hole is provided, and a portion of the positioning member is embedded in the groove. And / or, the positioning member is threadedly engaged with the first mating part, and the fixing member is threadedly engaged with the second mating part.

8. The compressor stator vane adjustment mechanism according to claim 3, characterized in that, Each of the first ring body and the second ring body has a limiting groove on its outer peripheral wall. A portion of the first driving ring extends into the limiting groove of the first ring body, and a portion of the second driving ring extends into the limiting groove of the second ring body. And / or, a guide protrusion is provided on one of the wall surface of the mounting hole and the outer wall surface of the eccentric shaft, and a guide groove is provided on the other of the wall surface of the mounting hole and the outer wall surface of the eccentric shaft, the guide protrusion being disposed in the guide groove, and the guide groove being a spiral groove.

9. The compressor stator vane adjusting mechanism according to any one of claims 1-8, characterized in that, The first drive ring and the second drive ring are configured with arc segment splicing; And / or, it also includes a first adjusting nut and a second adjusting nut, each of the first adjusting nut and the second adjusting nut being positionally adjustable and detachably disposed on the mounting base, the first adjusting nut extending radially along the first drive ring and having its end capable of abutting against the first drive ring, the second adjusting nut extending radially along the second drive ring and having its end capable of abutting against the second drive ring.

10. A compressor test piece, characterized in that, It includes a first stator blade group, a second stator blade group, a casing, and a plurality of compressor stator blade adjustment mechanisms according to any one of claims 1-9, wherein the first drive ring and the second drive ring are concentrically arranged with the casing, and one end of the first stator blade group and the second stator blade group is sleeved on the casing.

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