Disassembling device and method for inner ring locking pin of air compressor stator of aero-engine

Abstract

The invention discloses a disassembling device and method for an aero-engine compressor stator inner ring locking pin, a positioning groove is formed in the disassembling end of an upper plier handle, a lower plier handle ejector rod is arranged at the disassembling end of a lower plier handle, and the positioning groove and the lower plier handle ejector rod are aligned in the vertical direction. When the edge contour of the positioning groove partially coincides with the edge contour of the locking pin mounting hole, preliminary positioning is achieved, at the moment, only the lower plier handle needs to be rotated through the handheld end, the lower plier handle ejector rod can directly stretch into the locking pin mounting hole, positioning is accurate, rapid positioning of the disassembling device can be achieved, and operation is more convenient.

Description

Technical Field

[0001] This invention belongs to the field of mechanical assembly technology and relates to a disassembly device and method for the locking pin of the inner ring of the compressor stator of an aero-engine. Background Technology

[0002] The inner ring of a new type of aero-engine compressor stator assembly is divided into several segments for easy disassembly and assembly. Each segment of the inner ring is suspended on the short shafts of several adjustable stator blades. A graphite bushing is installed between the short shaft of each adjustable stator blade and the mounting through hole of the inner ring. To prevent the inner ring and graphite bushing from falling off, the inner ring and the adjustable stator blades adopt an "interlocking" connection structure. The side surface of the short shaft portion of the adjustable stator blades connected at two points on each segment of the inner ring has a locking arc-shaped groove, the same as the locking pin, so that the adjustable stator blades maintain the grooved structure during rotation and do not get stuck on the locking pin. The adjustable stator with the groove... The corresponding graphite bushing installed on the short shaft of the blade also has a notch with the same locking arc as the locking pin. This "groove" on the short shaft of the adjustable stator blade and the "notch" on the graphite bushing are used to place the locking pin of the inner ring of the compressor stator. Then, the honeycomb inner ring assembly is circumferentially fitted on the inner ring of the compressor stator to ensure that the locking pin does not come out. In this way, the adjustable stator blade, the inner ring of the compressor stator, the graphite bushing and the honeycomb inner ring assembly form an interlocking structure and are locked at the short shaft of the adjustable stator blade. Together, they constitute a rectifier with adjustable gas guiding function and sealing function together with the corresponding sealing grate ring of the compressor rotor. This interlocking structure can be installed sequentially according to the assembly relationship. The compressor stator inner ring locking pin can also be easily inserted by hand into the pin hole formed by the adjustable stator blade, the compressor stator inner ring, and the graphite bushing. However, when disassembling the compressor stator inner ring locking pin, the compressor stator assembly is too heavy to be easily flipped over. The pin hole and the locking pin are in a very small clearance fit, and the pin hole opening is slightly higher than the end face of the locking pin, making it impossible to grab or lift. This makes disassembly extremely difficult, and it can only be pushed out through the small hole at the lower end of the inner ring.

[0003] Under current technological conditions, a gourd-shaped solid steel awl was initially used to press the inner ring locking pin through the small hole at the lower end of the inner ring. However, due to the thinness of the needle tip, it was easily deformed by compression. Furthermore, the handle of the awl was too long, causing interference with other nearby inner rings or platforms during operation. The awl had to be inserted at an angle into the small hole at the lower end of the inner ring, resulting in only a vertical component of the force applied to the inner ring locking pin. Consequently, friction was generated between the inner ring locking pin and the pin hole, requiring a greater force, and the needle tip was more prone to bending. To avoid interference from vertical force during disassembly and to increase the rigidity and strength of the awl, the front end of the awl was ground to reduce its length and increase the cross-sectional area of ​​the needle tip. After these improvements, the disassembly problem of the inner ring locking pin was temporarily solved. However, due to the internal space limitations of the compressor stator assembly, the operator could not directly observe the small hole at the lower end of the inner ring, making it difficult for the awl to quickly locate the small hole during disassembly. The disassembly efficiency of the locking pin still needs further improvement. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the locking pin inside the pin hole is not easy to remove when disassembling the inner ring locking pin of the compressor stator. When disassembling the locking pin, the existing steel awl needle is difficult to quickly position to the small hole at the lower end of the inner ring, resulting in inaccurate positioning and inconvenient operation. This invention provides a device and method for disassembling the locking pin of the inner ring of the compressor stator of an aero-engine.

[0005] To achieve the above objectives, the present invention employs the following technical solution: A disassembly device for a locking pin of an inner ring of a compressor stator in an aero-engine includes an upper clamp handle hinged to a lower clamp handle, and both the upper and lower clamp handles include a disassembly end and a hand-held end. The upper clamp handle has a positioning groove at its disassembled end, and the lower clamp handle has a lower clamp handle top rod at its disassembled end. The positioning groove and the lower clamp handle top rod are aligned in the vertical direction.

[0006] A further improvement of the present invention is that: During disassembly, the edge contour of the positioning groove partially coincides with the edge contour of the locking pin mounting hole.

[0007] The cross-sectional structure of the lower clamp handle push rod is the same as the structure of the lower end of the locking pin mounting hole.

[0008] During disassembly, when the lower clamp handle push rod extends into the locking pin mounting hole along the lower end of the locking pin mounting hole, the locking pin inside moves upward along the locking pin mounting hole until the upper end of the locking pin is 1mm-3mm higher than the upper end of the locking pin mounting hole, at which point the disassembly ends.

[0009] The positioning groove is formed on the side wall of the disassembled end of the upper clamp handle.

[0010] The lower clamp handle push rod is located on the upper end face of the lower clamp handle disassembly end.

[0011] The disassembly end of the lower clamp handle includes a first horizontal portion and a first inclined portion connected to each other, and the end of the first inclined portion away from the first horizontal portion is connected to the hand handle end. During disassembly, the vertical height of the first horizontal section is lower than the vertical height of the handheld end.

[0012] The disassembly end of the upper clamp handle includes a second horizontal portion and a second inclined portion connected to each other, and the end of the second inclined portion away from the second horizontal portion is connected to the hand-held end. During disassembly, the vertical height of the second horizontal section is greater than the vertical height above the handheld end.

[0013] The positioning groove is formed on the side wall of the second horizontal part, and the second horizontal part has a beveled part near the top corner of the positioning groove. One end of the oblique cut is connected to the upper end face of the second horizontal part, and the other end is connected to the side wall of the second horizontal part; The upper end of the positioning groove is connected to the lower end of the beveled section.

[0014] A method for disassembling a locking pin for the inner ring of a compressor stator in an aero-engine includes the following steps: Place the lower end face of the upper clamp handle on the upper end face of the inner ring of the stator of the aero-engine compressor, so that the edge contour of the positioning groove coincides with the edge contour of the locking pin mounting hole. Drive the lower pliers handle with the hand-held end. The lower pliers handle push rod moves vertically from the lower end of the locking pin mounting hole to its interior. The lower pliers handle push rod pushes the locking pin inside upward until the upper end of the locking pin moves outside the locking pin mounting hole. Then, remove the locking pin, and the disassembly is complete.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses a disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine. The disassembly end of the upper clamp handle is provided with a positioning groove, and the disassembly end of the lower clamp handle is provided with a lower clamp handle push rod. The positioning groove and the lower clamp handle push rod are aligned in the vertical direction. During disassembly, when the edge contour of the positioning groove partially coincides with the edge contour of the locking pin mounting hole, preliminary positioning is achieved. At this time, it is only necessary to rotate the lower clamp handle by hand, and the lower clamp handle push rod can directly extend into the locking pin mounting hole. The positioning is accurate and the disassembly device can be quickly positioned, making the operation more convenient.

[0016] Furthermore, in this invention, the positioning groove is formed on the side wall of the disassembled end of the upper clamp handle, so that when the locking pin moves to the outside of the locking pin mounting hole, it can be easily removed directly from one side of the positioning groove.

[0017] Furthermore, in this invention, during disassembly, the vertical height of the first horizontal part of the lower clamp handle is lower than the vertical height of the hand-held end, and the vertical height of the second horizontal part of the upper clamp handle is greater than the vertical height of the hand-held end. The space reserved between the first and second horizontal parts meets the height of the inner ring of the engine compressor stator. During disassembly, the upper and lower clamping of the inner ring of the compressor stator can be achieved within a limited space.

[0018] Furthermore, in this invention, the second horizontal part has a beveled portion near the top corner of the positioning groove, and the upper end of the positioning groove coincides with the edge of the beveled portion. Since the working space of the casing is small, the beveled portion avoids line-of-sight interference during positioning, making the positioning more accurate and faster.

[0019] This invention discloses a method for disassembling a locking pin of the inner ring of a compressor stator in an aero-engine. The disassembly end of the upper clamp handle is provided with a positioning groove, and the disassembly end of the lower clamp handle is provided with a lower clamp handle push rod. Both the positioning groove and the lower clamp handle push rod are aligned vertically. During disassembly, when the edge contour of the positioning groove partially coincides with the edge contour of the locking pin mounting hole, initial positioning is achieved. At this point, simply rotating the lower clamp handle by hand allows the lower clamp handle push rod to directly extend into the locking pin mounting hole. This method provides precise positioning and enables rapid positioning of the disassembly device, making operation more convenient. Attached Figure Description To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the decomposition device disclosed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the disassembled state disclosed in an embodiment of the present invention; Figure 3 This is a magnified front view (with the locking pin fully exposed) of an embodiment of the present invention. Figure 4 This is a magnified view of the reverse side of the locking pin (with a small portion of the end face exposed) disclosed in an embodiment of the present invention; Figure 5 This is an enlarged schematic diagram of the assembly of the inner annular grooved bushing of the compressor stator disclosed in an embodiment of the present invention; Figure 6 This is a structural diagram of the compressor stator assembly disclosed in an embodiment of the present invention; Figure 7 This is a structural diagram of the compressor inner ring structure installed inside the compressor stator assembly, as disclosed in an embodiment of the present invention. Figure 8 This is a structural diagram of the inner ring grooved bushing disclosed in an embodiment of the present invention; Figure 9 This is a schematic diagram of the installation locking pin disclosed in an embodiment of the present invention; Figure 10 This is a schematic diagram of the installation locking ring disclosed in an embodiment of the present invention; Figure 11 This is a schematic diagram of the compressor casing disclosed in an embodiment of the present invention.

[0021] Wherein: 1- Annular compressor stator assembly; 2- Disassembly device; 3- Compressor stator inner ring locking pin; 4- Inner ring grooved bushing; 5- Compressor inner ring; 6- Compressor adjustable blades; 7- Compressor casing; 8- Upper clamp handle; 9- Connecting shaft; 10- Lower clamp handle; 11- Lower clamp handle push rod; 12- Positioning groove; 13- Locking pin mounting hole; 14- First horizontal part; 15- First inclined part; 16- Second horizontal part; 17- Second inclined part; 18- Beveled part; 19- Arc-shaped slot; 20- Locking ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do 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 the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0028] The present invention will now be described in further detail with reference to the accompanying drawings: See Figures 1 to 11 This invention discloses a disassembly device and method for the inner ring locking pin of an aero-engine compressor stator. It cleverly utilizes the small hole at the lower end of the inner ring and the visible end face at the upper end of the inner ring for positioning. The shape-based positioning structure that mates with the pin hole of the inner ring is simple in design, enabling rapid positioning of the disassembly device. The pliers are ergonomically designed with force and resistance arms, and the specially lengthened force arm design makes operation simple and convenient, greatly reducing the operator's labor intensity and achieving efficient disassembly of the inner ring locking pin in a time-saving and labor-saving manner. This disassembly device and method for the inner ring locking pin of a compressor stator can also be applied to the disassembly of locking pins with other similar structures.

[0029] Example 1 See Figure 1 This embodiment discloses a disassembly device for the inner ring locking pin of the compressor stator of an aero-engine, including an upper clamp handle 8, which is hinged to a lower clamp handle 10. Both the upper clamp handle 8 and the lower clamp handle 10 include a disassembly end and a hand-held end. The disassembly end of the upper clamp handle 8 is provided with a positioning groove 12, and the disassembly end of the lower clamp handle 10 is provided with a lower clamp handle top rod 11. The positioning groove 12 and the lower clamp handle top rod 11 are aligned in the vertical direction.

[0030] Furthermore, in this embodiment, during disassembly, the edge contour of the positioning groove 12 partially coincides with the edge contour of the locking pin mounting hole 13. When the edge contour of the positioning groove partially coincides with the edge contour of the locking pin mounting hole, preliminary positioning is achieved. At this time, it is only necessary to rotate the lower pliers handle by hand, and the lower pliers handle rod can directly extend into the locking pin mounting hole. The positioning is accurate, and the disassembly device can be quickly positioned, making the operation more convenient.

[0031] Furthermore, in this embodiment, the positioning groove 12 is a semi-circular arc structure groove. The positioning groove 12 is opened on the side wall of the disassembled end of the upper clamp handle 8. The arc diameter of the positioning groove 12 is adapted to the locking pin. When the locking pin is pushed out of the locking pin mounting hole 13, it can continue to move upward along the side wall of the positioning groove 12 until the height of movement ensures that the hand can grasp the locking pin.

[0032] Furthermore, in this embodiment, the lower clamp handle push rod 11 is installed on the upper end face of the disassembled end of the lower clamp handle 10. The cross-sectional structure of the lower clamp handle push rod 11 is the same as the lower end structure of the locking pin mounting hole 13. That is, the shape and size of the upper end cross-section of the lower clamp handle push rod 11 are designed according to the shape and size of the small hole at the lower end of the inner ring of the compressor stator, so that it can just pass through the small hole at the lower end of the inner ring.

[0033] Furthermore, in this embodiment, during disassembly, when the lower clamp handle push rod 11 extends into the locking pin mounting hole 13 along the lower end of the locking pin mounting hole 13, the locking pin inside moves upward along the locking pin mounting hole 13 until the upper end of the locking pin is 1mm-3mm higher than the upper end of the locking pin mounting hole 13, ensuring that the hand can grasp the locking pin, and the disassembly ends.

[0034] Furthermore, in this embodiment, during disassembly, the center line of the arc of the positioning groove 12 and the center line of the lower clamp handle push rod 11 are on the same line.

[0035] Furthermore, in this embodiment, during disassembly, the specific structures of the lower clamp handle 10 and the upper clamp handle 8 are as follows: The disassembly end of the lower clamp handle 10 includes a first horizontal portion 14 and a first inclined portion 15 connected to each other. The end of the first inclined portion 15 away from the first horizontal portion 14 is connected to the hand handle end. During disassembly, the vertical height of the first horizontal portion 14 is lower than the vertical height of the hand handle end.

[0036] The disassembly end of the upper clamp handle 8 includes a second horizontal portion 16 and a second inclined portion 17 connected to each other. The end of the second inclined portion 17 away from the second horizontal portion 16 is connected to the hand-held end. During disassembly, the vertical height of the second horizontal portion 16 is greater than the vertical height of the hand-held end.

[0037] The space reserved between the first and second horizontal sections meets the height requirements of the inner ring of the engine compressor stator. During disassembly, the inner ring of the compressor stator can be clamped up and down within a limited space, which can better adapt to the narrow working space.

[0038] Furthermore, in this embodiment, the positioning groove 12 is formed on the side wall of the second horizontal portion 16, and the second horizontal portion 16 has a beveled portion 18 near the apex corner of the positioning groove 12; one end of the beveled portion 18 is connected to the upper end face of the second horizontal portion 16, and the other end is connected to the side wall of the second horizontal portion 16; the upper end of the positioning groove 12 coincides with the edge of the beveled portion 18. Because the working space of the casing is small, the beveled portion avoids visual interference during positioning, resulting in more accurate and faster positioning.

[0039] Furthermore, in this embodiment, the upper clamp handle 8 and the lower clamp handle 10 are hinged together by a connecting shaft 9, and then the opening and closing of the upper clamp handle 8 and the lower clamp handle 10 can be realized by the operation of the hand end, which is convenient to operate and the disassembly and positioning are accurate.

[0040] Example 2 See Figure 2 This embodiment also discloses a method for disassembling a locking pin for the inner ring of an aero-engine compressor stator, comprising the following steps: Step 1: Disassemble the compressor stator assembly into the upper and lower parts, remove the compressor stator inner ring locking ring, and expose all compressor stator inner ring locking pins. Step 2: Hinge the upper clamp handle 8 with the lower clamp handle 10 and clamp it on the upper and lower ends of the inner ring of the compressor stator, so that the edge contour of the positioning groove 12 coincides with the edge contour of the locking pin mounting hole 13, and the positioning is completed. Step 3: Hold the lower pliers handle 10 and move the lower pliers handle push rod 11 vertically from the lower end of the locking pin mounting hole 13 toward its interior. The lower pliers handle push rod 11 pushes the internal locking pin upward until the upper end of the locking pin moves to the outside of the locking pin mounting hole 13. Then remove the locking pin, and the disassembly is complete.

[0041] Step 4: With the compressor stator inner ring locking pin 3 slightly exposed at the top of the disassembly device, grab the compressor stator inner ring locking pin 3 by hand, remove the compressor stator inner ring locking pin disassembly device, and disassemble the next compressor stator inner ring locking pin 3. Step 5: Repeat steps 3 and 4 until all compressor stator inner ring locking pins 3 are removed, and the disassembly is complete.

[0042] To facilitate a further understanding of the working method and principle of this application, this embodiment discloses the assembly structure of the compressor stator inner ring locking pin 3: Figure 11 For compressor casing 7, see Figures 3-10 A ring-shaped compressor stator assembly 1 is provided on the compressor casing 7. The end of the compressor stator assembly 1 located inside the compressor casing 7 is connected to the compressor inner ring 5. The compressor stator assembly 1 includes several compressor adjustable blades 6. Some of the compressor adjustable blades 6 have arc-shaped slots 19 on their side ends. The compressor inner ring 5 has locking pin mounting holes 13 corresponding to the arc-shaped slots 19. An inner ring with a groove is installed between the compressor adjustable blades 6 and the compressor inner ring 5. Bushing 4, the inner ring grooved bushing 4 has a groove corresponding to the arc-shaped groove 19. That is, during installation, the groove on the inner ring grooved bushing 4, the arc-shaped groove 19 and the locking pin mounting hole 13 correspond one-to-one. The compressor stator inner ring locking pin 3 is installed in the locking pin mounting hole 13 to realize the assembly between the compressor stator assembly 1 and the compressor inner ring 5. Then, the honeycomb inner ring assembly, i.e. the locking ring 20, is installed on the compressor inner ring 5, and the installation of the adjustable stator blade short shaft part is completed.

[0043] The disassembly method of this invention cleverly utilizes the small hole at the lower end of the compressor stator inner ring and the visible end face at the upper end of the inner ring for positioning. The shape-based positioning structure that mates with the pin hole of the compressor inner ring is simple in design, enabling rapid positioning of the disassembly device. The clamp handle is ergonomically designed with a force-applying arm and a resistance arm, and the specially lengthened force arm design makes operation simple and convenient, greatly reducing the operator's labor intensity and achieving efficient disassembly of the inner ring locking pin in a time-saving and labor-saving manner. This compressor stator inner ring locking pin disassembly device and method can also be applied to the disassembly of locking pins with other similar structures.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A disassembly device for a locking pin on the inner ring of a compressor stator in an aero-engine, characterized in that, It includes an upper pliers handle (8), which is hinged to a lower pliers handle (10). Both the upper pliers handle (8) and the lower pliers handle (10) include a disassembly end and a hand-held end. The upper clamp handle (8) is provided with a positioning groove (12) at the disassembly end, and the lower clamp handle (10) is provided with a lower clamp handle top rod (11) at the disassembly end. The positioning groove (12) and the lower clamp handle top rod (11) are aligned in the vertical direction.

2. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 1, characterized in that, During disassembly, the edge contour of the positioning groove (12) partially coincides with the edge contour of the locking pin mounting hole (13).

3. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 2, characterized in that, The cross-sectional structure of the lower clamp handle push rod (11) is the same as the lower end structure of the locking pin mounting hole (13).

4. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 2, characterized in that, During disassembly, when the lower clamp handle push rod (11) extends into the locking pin mounting hole (13) along the lower end of the locking pin mounting hole (13), the locking pin inside moves upward along the locking pin mounting hole (13) until the upper end of the locking pin is 1mm-3mm higher than the upper end of the locking pin mounting hole (13), and the disassembly ends.

5. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 1, characterized in that, The positioning groove (12) is formed on the side wall of the disassembly end of the upper clamp handle (8).

6. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 1, characterized in that, The lower clamp handle push rod (11) is located on the upper end face of the disassembly end of the lower clamp handle (10).

7. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 1, characterized in that, The disassembly end of the lower clamp handle (10) includes a first horizontal part (14) and a first inclined part (15) connected to each other, and the end of the first inclined part (15) away from the first horizontal part (14) is connected to the hand-held end. During disassembly, the vertical height of the first horizontal part (14) is lower than the vertical height of the handheld end.

8. The disassembly device for the locking pin of the inner ring of the compressor stator of an aero-engine according to claim 7, characterized in that, The disassembly end of the upper clamp handle (8) includes a second horizontal part (16) and a second inclined part (17) connected to each other, and the end of the second inclined part (17) away from the second horizontal part (16) is connected to the hand-held end. During disassembly, the vertical height of the second horizontal part (16) is greater than the vertical height of the handheld end.

9. A disassembly device for a locking pin of the inner ring of an aero-engine compressor stator according to claim 8, characterized in that, The positioning groove (12) is opened on the side wall of the second horizontal part (16), and the second horizontal part (16) has a beveled part (18) near the top corner of the positioning groove (12). One end of the oblique cut (18) is connected to the upper end face of the second horizontal part (16), and the other end is connected to the side wall of the second horizontal part (16); The upper end of the positioning groove (12) is connected to the lower end of the oblique cut (18).

10. A method for disassembling a locking pin for the inner ring of an aero-engine compressor stator, characterized in that, Includes the following steps: Place the lower end face of the upper clamp handle (8) on the upper end face of the inner ring of the stator of the aero-engine compressor, so that the edge contour of the positioning groove (12) coincides with the edge contour of the locking pin mounting hole (13). Drive the lower pliers handle (10) by hand, and the lower pliers handle push rod (11) moves vertically from the lower end of the locking pin mounting hole (13) into it. The lower pliers handle push rod (11) pushes the locking pin inside to move upward until the upper end of the locking pin moves to the outside of the locking pin mounting hole (13). Then the locking pin is removed, and the disassembly ends.

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