Stator vane adjustment mechanism and compressor

Abstract

The application provides a stator vane adjusting mechanism and a compressor. The stator vane adjusting mechanism comprises a linkage ring, a rocker arm and at least three supporting mechanisms. The linkage ring is used for rotating relative to a casing around an axis of an engine and driving the stator vane to rotate through the rocker arm. The at least three supporting mechanisms are distributed along the circumference of the linkage ring and comprise a cross sleeve and an arc-shaped slide rail. The cross sleeve comprises a first sleeve and a second sleeve which are connected with each other, and the axis direction of the first sleeve is perpendicular to the axis direction of the second sleeve. The first sleeve is connected with the linkage ring, and the cross sleeve can move along the radial direction of the engine relative to the linkage ring. The second sleeve is in sliding fit with the arc-shaped slide rail, and the arc-shaped slide rail is installed on the casing and extends around the axis of the engine. Thus, the linkage ring and the casing can be supported to be concentric in cold state and hot state, thereby effectively improving the eccentric problem caused by the deformation of the linkage ring and helping to improve the adjusting precision.

Description

Technical Field

[0001] This invention relates to the field of aero-engine technology, and more specifically, to a stator blade adjustment mechanism and a compressor. Background Technology

[0002] Variable stator vanes (VSVs) are primarily used to improve compressor operating characteristics, expand the compressor's stable operating range, and prevent surge. The VSV adjustment mechanism is mainly used to adjust the VSV's installation angle according to the engine's operating state at different times, ensuring the rotor blade inlet airflow angle is close to the design state, eliminating airflow separation on the blade back, and thus extending the compressor's stable operating range.

[0003] VSV adjustment mechanism such as Figure 1 As shown, during operation, the actuator 1 transmits power through the torsion bar 8 and connecting rod 2, causing the linkage ring 3 to rotate circumferentially around the engine axis L1. Simultaneously, the rocker arm 4 rotates around the rotation axis of the adjustable stator blade 5, adjusting the installation angle of the adjustable stator blade 5. To increase rigidity, support screws 6 are generally arranged circumferentially around the linkage ring 3. The support screws 6 are fixedly connected to the linkage ring 3 and supported on the outer cylindrical surface of the casing 7. Figure 2 and Figure 3 As shown, the linkage ring 3 is connected to the adjustable stator blade 5 via a rocker arm 4. When the casing 7 is heated during operation, it expands radially. To prevent interference between the casing 7 and the support screw 6 during operation, a large gap Δ is left between the support screw 6 on the linkage ring 3 and the surface of the casing 7. The gap Δ means that the support screw 6 cannot always support the casing 7 when the linkage ring rotates, thus failing to ensure concentricity between the linkage ring 3 and the casing 7, reducing the rigidity of the support, causing deformation and eccentricity of the linkage ring, and resulting in uneven rotation angle of the blades. Summary of the Invention

[0004] The purpose of this invention is to provide a stator blade adjustment mechanism that can improve the technical problem of uneven stator blade rotation caused by deformation and eccentricity of the linkage ring.

[0005] The present invention also aims to provide a compressor that can improve the technical problem of uneven stator blade rotation caused by deformation and eccentricity of the linkage ring.

[0006] The embodiments of the present invention can be implemented in the following ways:

[0007] A stator blade adjustment mechanism includes a linkage ring and a rocker arm, the linkage ring being throttle-connected to the rocker arm; the linkage ring is used to rotate relative to the casing about the axis of the engine, so as to drive the stator blade to rotate via the rocker arm, thereby adjusting the installation angle of the stator blade; the stator blade adjustment mechanism further includes at least three support mechanisms distributed circumferentially along the linkage ring, the support mechanisms including:

[0008] A cross-shaped sleeve, comprising a first sleeve and a second sleeve connected to each other, wherein the axial direction of the first sleeve is perpendicular to the axial direction of the second sleeve; the first sleeve is connected to the linkage ring, and the cross-shaped sleeve is capable of radial movement relative to the linkage ring along the engine; and

[0009] An arc-shaped slide rail is mounted on the casing and extends about the axis of the engine; the second sleeve slides in cooperation with the arc-shaped slide rail.

[0010] Optionally, the support mechanism further includes a cylindrical pin, which is connected to both the linkage ring and the first sleeve.

[0011] Optionally, the linkage ring is provided with two connecting arms spaced apart, and has a first through hole penetrating the two connecting arms; the first sleeve has a first inner hole, the first sleeve is disposed between the two connecting arms, and the first inner hole and the first through hole together form a channel for the cylindrical pin to pass through; the distance between the two connecting arms is greater than the length of the first sleeve.

[0012] Optionally, the stator blade adjustment mechanism further includes a connecting pin, which is disposed on one of the linkage ring and the rocker arm, and the other of the linkage ring and the rocker arm is provided with an axial oblong hole, which extends along the axial direction of the engine.

[0013] Optionally, the linkage ring has a first mounting arm and a second mounting arm disposed opposite to each other, and the axial oblong hole is disposed through the first mounting arm and the second mounting arm; the stator blade adjusting mechanism further includes a pin sleeve, the pin sleeve sleeves the connecting pin and slides in cooperation with the axial oblong hole.

[0014] Optionally, the arc-shaped slide rail is further provided with a connecting part, which is fixedly connected to the housing by connecting screws.

[0015] Optionally, the stator blade adjustment mechanism further includes a positioning pin, a first positioning hole is provided on the casing, and a second positioning hole is provided on the connecting part, both the first positioning hole and the second positioning hole cooperating with the positioning pin.

[0016] Optionally, the material of the cross sleeve includes a self-lubricating material.

[0017] Optionally, twelve support mechanisms are distributed circumferentially along the linkage ring.

[0018] A compressor, the compressor comprising stator blades, a casing, and the aforementioned stator blade adjustment mechanism.

[0019] The beneficial effects of the stator blade adjustment mechanism and compressor provided by the embodiments of the present invention include:

[0020] An embodiment of the present invention provides a stator blade adjustment mechanism, comprising a linkage ring, a rocker arm, and at least three support mechanisms. The linkage ring is used to rotate relative to the casing about the engine axis, and drives the stator blades to rotate via the rocker arm, thereby adjusting the installation angle of the stator blades. At least three support mechanisms are distributed circumferentially along the linkage ring, and each support mechanism includes a cross sleeve and an arc-shaped slide rail. The cross sleeve includes a first sleeve and a second sleeve connected to each other, with the axial direction of the first sleeve perpendicular to the axial direction of the second sleeve. The first sleeve is connected to the linkage ring, and the cross sleeve is capable of moving radially relative to the linkage ring along the engine. The second sleeve is slidably engaged with the arc-shaped slide rail, which is mounted on the casing and extends about the engine axis. In a cold state, the linkage ring and the cross sleeve can rotate around the engine axis together under the constraint of the slide rail. According to the three-point centering principle, the linkage ring and the casing remain concentric. In a hot state, the linkage ring or the arc-shaped slide rail expands radially outward along with the casing, and the cross sleeve can move radially relative to the linkage ring to avoid expansion jamming. The linkage ring can still rotate circumferentially, and the cross sleeves at all points in the circumference still support the linkage ring to remain concentric with the casing. This effectively improves the eccentricity problem caused by the deformation of the linkage ring, ensures that the rotation angle of the stator blades is uniform throughout the cycle, and helps to improve the adjustment accuracy.

[0021] Embodiments of the present invention also provide a compressor that includes the above-mentioned stator blade adjustment mechanism, thus effectively improving the eccentricity problem caused by the deformation of the linkage ring, ensuring uniform rotation angle of the stator blades around the clock cycle, and helping to improve the adjustment accuracy. Attached Figure Description

[0022] The above-described features and advantages of the present invention will be better understood after reading the following detailed description of embodiments of the present disclosure in conjunction with the accompanying drawings. In the drawings, components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0023] Figure 1 This diagram shows the overall structure of the stator blade adjustment mechanism in the prior art;

[0024] Figure 2 This diagram shows a partial structural schematic of a stator blade adjustment mechanism in the prior art;

[0025] Figure 3 A three-dimensional structural schematic diagram of a stator blade adjustment mechanism in the prior art is shown;

[0026] Figure 4 A partial structural schematic diagram of a stator blade adjustment mechanism according to one aspect of the present invention is shown;

[0027] Figure 5 A schematic diagram of the connection structure between the arc-shaped slide rail and the casing in the stator blade adjustment mechanism provided according to one aspect of the present invention is shown;

[0028] Figure 6 A schematic diagram of the connection structure between the arc-shaped slide rail and the casing according to one aspect of the present invention is shown;

[0029] Figure 7 The invention provides a method according to one aspect of the present invention. Figure 6 A magnified view of the local structure at point A in the middle.

[0030] Figure label:

[0031] 1-Actuator cylinder; 2-Connecting rod; 3-Linkage ring; 4-Rocker arm; 5-Adjustable stator blade; 6-Support screw; 7-Jack; 8-Torque bar;

[0032] 100-Stator blade adjustment mechanism; 110-Linkage ring; 111-Connecting arm; 112-First through hole; 113-First mounting arm; 114-Second mounting arm; 115-Axial oblong hole; 120-Cross sleeve; 121-First sleeve; 122-Second sleeve; 131-Arc-shaped guide rail; 132-Connecting part; 133-Connecting screw; 134-Positioning pin; 135-Second positioning hole; 141-Cylindrical pin; 142-Connecting pin; 143-Pin sleeve; 150-Rocker arm; 211-Casing; 212-First positioning hole; 213-Stator blade. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0034] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," "outer," or "vertical" appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use, and does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] At the same time, it should be noted that the terms "first" and "second" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components, etc. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Figure 4 This is a partial structural schematic diagram of the stator blade 213 adjustment mechanism 100 provided in this embodiment. Figure 5 This is a schematic diagram of the connection structure between the arc-shaped slide rail 131 and the casing 211 in the stator blade 213 adjustment mechanism 100 provided in this embodiment. This embodiment provides a stator blade 213 adjustment mechanism 100, and correspondingly, also provides a compressor (not shown in the figure).

[0038] The compressor includes a stator blade 213 adjustment mechanism 100, a casing 211, and stator blades 213. The stator blade 213 adjustment mechanism 100 is mounted on the casing 211 and is a device for adjusting the installation angle of the stator blades 213. Generally, the casing 211 has a cylindrical structure, and its axis coincides with the engine axis L2. Therefore, the "axis of the casing 211" mentioned in the description of this embodiment can also be regarded as the engine axis.

[0039] The main structure of the stator blade 213 adjustment mechanism 100 can adopt the same as... Figure 1The VSV adjustment mechanism shown has the same structure, that is, the power of the actuator cylinder is transmitted to the linkage ring 110 through the connecting rod, and then the rotation of the linkage ring 110 around the axis of the engine (which can also be regarded as the axis of the casing 211 in this embodiment) drives the rocker arm 150 to move. Finally, the rocker arm 150 drives the stator blade 213 to rotate around the rotation axis L3, thereby realizing the adjustment of the installation angle of the stator blade 213. The embodiment of the present invention mainly improves the linkage ring 110 and the structure connected to the linkage ring 110. The improved structure will be described in detail below. Other parts of the stator blade 213 adjustment mechanism 100, such as the actuator cylinder, will not be described in detail.

[0040] In this embodiment, the stator blade 213 adjustment mechanism 100 includes a linkage ring 110, a rocker arm 150, and at least three support mechanisms. The linkage ring 110 is used to rotate relative to the casing 211 around the engine axis, and drives the stator blade 213 to rotate via the rocker arm 150, thereby adjusting the installation angle of the stator blade 213. At least three support mechanisms are distributed circumferentially along the linkage ring 110, and each support mechanism includes a cross sleeve 120 and an arc-shaped slide rail 131. The cross sleeve 120 includes a first sleeve 121 and a second sleeve 122 connected to each other, with the axial direction of the first sleeve 121 perpendicular to the axial direction of the second sleeve 122. The first sleeve 121 is connected to the linkage ring 110, and the cross sleeve 120 can move radially relative to the linkage ring 110 along the engine. The second sleeve 122 is slidably engaged with the arc-shaped slide rail 131, which is mounted on the casing 211 and extends around the engine axis. In a cold state, the linkage ring 110 and the cross sleeve 120 can rotate around the engine axis together under the constraint of the slide rail. According to the three-point centering principle, the linkage ring 110 and the casing 211 remain concentric. In a hot state, the linkage ring 110 or the arc-shaped slide rail 131 expands radially outward along with the casing 211. The cross sleeve 120 can move radially relative to the linkage ring 110 to avoid expansion jamming. The linkage ring 110 can still rotate circumferentially. At the same time, the cross sleeves 120 at all points in the circumference still support the linkage ring 110 to maintain concentricity with the casing 211. This effectively improves the eccentricity problem caused by the deformation of the linkage ring 110, ensures that the rotation angle of the stator blade 213 is uniform throughout the cycle, and helps to improve the adjustment accuracy.

[0041] Specifically, the linkage ring 110, such as Figure 3 The structure shown is ring-shaped, with multiple rocker arms 150 arranged along the circumference of the linkage ring 110. Figure 3(Only one rocker arm 150 on the same linkage ring 110 and the stator blade 213 connected to the rocker arm 150 are shown in the diagram.) Multiple rocker arms 150 are distributed along the circumference of the housing 211. When the linkage ring 110 rotates relative to the housing 211 around the axis of the housing 211, the rocker arm 150 swings around the rotation axis L under the drive of the linkage ring 110, thereby driving the stator blade 213 to rotate around the rotation axis L by a certain angle, so as to adjust the installation angle of the stator blade 213. The arc-shaped slide rail 131 is an arc-shaped structure extending around the axis of the engine. The second sleeve 122 is sleeved on the outside of the arc-shaped slide rail 131 and slides in cooperation with it. Therefore, the second sleeve 122 is arc-shaped. The "axial direction of the second sleeve 122" mentioned above, where "the axial direction of the first sleeve 121 is perpendicular to the axial direction of the second sleeve 122," refers to the tangential direction at the connection point between the second sleeve 122 and the first sleeve 121. Figure 5 The T direction in the middle.

[0042] Figure 6 This is a schematic diagram of the connection structure between the arc-shaped slide rail 131 and the casing 211 in this embodiment. Figure 7 for Figure 6 A magnified view of the local structure at point A. Please refer to the diagram. Figures 4-7 Optionally, in this embodiment, there are twelve support mechanisms, which are evenly distributed around the axis of the housing 211. Correspondingly, the first sleeves 121 of each of the twelve support mechanisms are slidably connected to the linkage ring 110, thus the linkage ring 110 has a structure with twelve support mechanisms connected. It is understood that in other embodiments, the number of support mechanisms can be specifically set to ensure that there are more than or equal to three support mechanisms, sufficient to achieve three-point centering. Further, in this embodiment, the arc-shaped slide rail 131 and the cross sleeve 120 are arranged in a one-to-one correspondence. Therefore, correspondingly, there are twelve arc-shaped slide rails 131 and twelve cross sleeves 120 in this embodiment. It is understood that in other embodiments, multiple cross sleeves 120 can also be configured to share a single arc-shaped slide rail 131.

[0043] like Figure 6 and Figure 7 As shown, the arc-shaped slide rail 131 is also provided with a connecting part 132, which is fixedly connected to the housing 211 by connecting screws 142133. Specifically, the connecting part 132 is an L-shaped structure provided at one end of the arc-shaped slide rail 131, which extends radially along the housing 211, and the other end abuts against the outer periphery of the housing 211, and is fixedly connected to the housing 211 by connecting screws 142133. It should be noted that the specific connection method and connection position between the arc-shaped slide rail 131 and the housing 211 are not limited to this. It can also be integrally formed and fixedly connected to the housing 211, or it can be connected to other positions of the housing 211.

[0044] Furthermore, the stator blade 213 adjustment mechanism 100 also includes a positioning pin 134. The housing 211 is provided with a first positioning hole 212, and the connecting part 132 is provided with a second positioning hole 135. The first positioning hole 212 and the second positioning hole 135 both cooperate with the positioning pin 134, thereby ensuring the installation position accuracy of the arc-shaped slide rail 131 on the housing 211 through the high-precision positioning pin 134, and ensuring that multiple arc-shaped slide rails 131 are concentric.

[0045] Please refer to this again. Figure 4 and Figure 5 In this embodiment, the support mechanism further includes a cylindrical pin 141, which is connected to both the linkage ring 110 and the first sleeve 121. That is, the first sleeve 121 is connected to the linkage ring 110 through the cylindrical pin 141. Specifically, the linkage ring 110 has two connecting arms 111 spaced apart at one axial end. The spacing of the two connecting arms 111 is radial to the linkage ring 110. Since the linkage ring 110 is installed on the outside of the housing 211 and is coaxial with the housing 211, the radial direction of the linkage ring 110 can also be regarded as the radial direction of the housing 211.

[0046] The first sleeve 121 has a first inner hole and is disposed between the two connecting arms 111. The first inner hole and the first through hole 112 together form a channel for the cylindrical pin 141 to pass through. That is, the cylindrical pin 141 passes through the holes on the two connecting arms 111 and the first inner hole simultaneously, thereby realizing the connection between the first sleeve 121 and the linkage ring 110. The distance between the two connecting arms 111 is greater than the length of the first sleeve 121. That is, when the first sleeve 121 is installed between the two connecting arms 111, the first sleeve 121 has a certain space to move along the direction from one connecting arm 111 to the other connecting arm 111 (i.e., the radial direction of the linkage ring 110). When the housing 211 undergoes a change in temperature or radial dimension, the radial movement of the first sleeve 121 relative to the linkage ring 110 cancels out the change, avoiding the problem of deformation of the linkage ring 110, and also ensuring stable support for the linkage ring 110 when the housing 211 is deformed. Specifically, the first sleeve 121 is a cylindrical structure, and its axial direction is the axial direction of the first inner hole.

[0047] Furthermore, the cross sleeve 120 is made of a self-lubricating material, which can be manufactured entirely of the self-lubricating material or of a metal material with a lubricating coating. Optionally, the self-lubricating material can be graphite-filled polyimide.

[0048] Please continue to refer to the reference. Figure 4 and Figure 5In this embodiment, the stator blade 213 adjustment mechanism 100 further includes a connecting pin 142, which is disposed on one of the linkage ring 110 and the rocker arm 150. Meanwhile, the other of the linkage ring 110 and the rocker arm 150 is provided with an axial oblong hole 115, which extends along the axial direction of the engine. Specifically, in this embodiment, the connecting pin 142 is disposed on the rocker arm 150, and the linkage ring 110 is provided with an axial oblong hole 115. Since the linkage ring 110 is coaxially disposed with the engine, in this embodiment, the length direction of the axial oblong hole 115 is parallel to the axial direction of the linkage ring 110.

[0049] It should be noted that "the connecting pin 142 is set on the rocker arm 150" can mean that the connecting pin 142 and the rocker arm 150 are an integral structure, or that it is fixed to the rocker arm 150 in other ways. Alternatively, the rocker arm 150 can have a through hole for the connecting pin 142 to pass through, and the connecting pin 142 can be set on the rocker arm 150 by inserting it into the through hole.

[0050] By setting the axial oblong hole 115, on the one hand, the machining accuracy of each hole on the housing 211, the linkage ring 110, and the rocker arm 150 can be reduced, thereby reducing the machining difficulty and cost. On the other hand, the connection between the rocker arm 150 and the linkage ring 110 is changed from a rotational fit to a rotational and sliding connection. Since the linkage ring 110 does not provide axial movement space through the connection between the cross sleeve 120 and the arc-shaped slide rail 131, when there is an axial movement requirement, it is achieved by the axial movement of the rocker arm 150 relative to the linkage ring 110. The axial movement of the linkage ring 110 relative to the housing 211 is eliminated, thereby avoiding the problem of connecting rod tilting and loss of force transmission component caused by the axial movement of the linkage ring 110.

[0051] Furthermore, the linkage ring 110 has a first mounting arm 113 and a second mounting arm 114 arranged opposite to each other. An axial oblong hole 115 is provided through the first mounting arm 113 and the second mounting arm 114. The stator blade 213 adjustment mechanism 100 also includes a pin sleeve 143, which is sleeved on the connecting pin 142 and slides in engagement with the axial oblong hole 115. Specifically, the two ends of the pin sleeve 143 slide in engagement with the first mounting arm 113 and the second mounting arm 114, respectively. In this way, the connecting pin 142 is installed in the axial oblong hole 115 of the linkage ring 110 through the pin sleeve 143, which can further improve the adjustment accuracy and prevent the connecting pin 142 from tilting in the circumferential oblong hole.

[0052] Optionally, the pin sleeve 143 includes a self-lubricating material, which may be made entirely of a self-lubricating material or of a metal material with a lubricating coating.

[0053] The stator blade 213 adjustment mechanism 100 and compressor provided in the embodiments of the present invention achieve the sliding of the casing 211 on the linkage ring 110 by setting a cross sleeve 120 and an arc-shaped slide rail 131. At the same time, the cross sleeve 120 and the linkage ring 110 can move relative to each other in the radial direction, ensuring that the linkage ring 110 can be reliably supported in both cold and hot states of the casing 211, avoiding the problems of deformation and eccentricity of the linkage ring 110. In addition, by setting an axial oblong hole 115 to connect the rocker arm 150 and the linkage ring 110, it can not only reduce the requirements for machining accuracy, reduce the machining difficulty and machining cost, but also avoid the problem of connecting rod tilting and loss of force transmission component caused by the axial movement of the linkage ring 110.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A stator blade adjustment mechanism, comprising a linkage ring and a rocker arm, the linkage ring being throttle-connected to the rocker arm; the linkage ring being used to rotate relative to the casing about the axis of the engine, so as to drive the stator blade to rotate via the rocker arm, thereby adjusting the installation angle of the stator blade; characterized in that: The stator blade adjustment mechanism further includes at least three support mechanisms distributed circumferentially along the linkage ring, the support mechanisms including: A cross-shaped sleeve, comprising a first sleeve and a second sleeve connected to each other, wherein the axial direction of the first sleeve is perpendicular to the axial direction of the second sleeve; the first sleeve is connected to the linkage ring, and the cross-shaped sleeve is capable of radial movement relative to the linkage ring along the engine; and An arc-shaped slide rail is mounted on the casing and extends about the axis of the engine; the second sleeve is slidably engaged with the arc-shaped slide rail. The support mechanism also includes a cylindrical pin, which is connected to both the linkage ring and the first sleeve. The linkage ring is provided with two connecting arms spaced apart, and has a first through hole penetrating the two connecting arms; the first sleeve has a first inner hole, the first sleeve is disposed between the two connecting arms, and the first inner hole and the first through hole together form a channel for the cylindrical pin to pass through; the distance between the two connecting arms is greater than the length of the first sleeve.

2. The stator blade adjustment mechanism according to claim 1, characterized in that: The stator blade adjustment mechanism further includes a connecting pin, which is disposed on one of the linkage ring and the rocker arm. The other of the linkage ring and the rocker arm is provided with an axial oblong hole, which extends along the axial direction of the engine.

3. The stator blade adjustment mechanism according to claim 2, characterized in that: The linkage ring has a first mounting arm and a second mounting arm arranged opposite to each other, and the axial oblong hole is provided through the first mounting arm and the second mounting arm; the stator blade adjustment mechanism also includes a pin sleeve, the pin sleeve sleeves the connecting pin and slides with the axial oblong hole.

4. The stator blade adjustment mechanism according to claim 1, characterized in that: The arc-shaped slide rail is also provided with a connecting part, which is fixedly connected to the casing by connecting screws.

5. The stator blade adjustment mechanism according to claim 4, characterized in that: The stator blade adjustment mechanism also includes a positioning pin. The casing is provided with a first positioning hole, and the connecting part is provided with a second positioning hole. Both the first positioning hole and the second positioning hole cooperate with the positioning pin.

6. The stator blade adjustment mechanism according to claim 1, characterized in that: The material of the cross sleeve includes a self-lubricating material.

7. The stator blade adjustment mechanism according to claim 1, characterized in that: Twelve support mechanisms are distributed circumferentially along the linkage ring.

8. A compressor, characterized in that: The compressor includes stator blades, a casing, and a stator blade adjustment mechanism as described in any one of claims 1-7.

Images