An auxiliary cleaning device for turbine blade crack detection of an aero-engine

Abstract

The utility model discloses an auxiliary cleaning device for aero-engine turbine blade crack detection relates to aero-engine technical field. The utility model discloses a base, drive component sets up in the inside of base, swing piece sets up on drive component, and swing piece installs clamping component on, spray component rotates and sets up on the base, and link moves and sets up on the base. The utility model discloses through swing piece drive blade and carry out compound swing, and the circumferential rotation of combination spray component and multidirectional shower head are to make the cooperative cooperation cleaning mode of blade initiative adjustment posture and spray component encircles the cooperation of washing, thereby can overall cover the complex curved surface of blade, tenon, gas film hole and so on hidden part, thoroughly remove the dirt, carbon deposit, metal scrap and so on impurity, avoid the impurity to cover crack or form false defect, provide clean surface for subsequent crack detection, ensure the accuracy of detection result, reduce the flight safety hidden danger from the source.

Description

Technical Field

[0001] This utility model belongs to the field of aero-engine technology, and specifically relates to an auxiliary cleaning device for detecting cracks in aero-engine turbine blades. Background Technology

[0002] Turbine blades are one of the core components of an aero-engine. Operating under extreme conditions of high temperature, high pressure, and high speed for extended periods, they are highly susceptible to fatigue cracks. If these cracks are not detected and addressed promptly, they can lead to serious malfunctions such as turbine blade breakage, jeopardizing flight safety. Therefore, regular crack inspection of turbine blades is crucial. Before inspection, the turbine blade surface must be thoroughly cleaned to remove adhering oil, carbon deposits, metal debris, and other impurities. Otherwise, these impurities can mask cracks or create false defects, affecting the accuracy of the inspection results.

[0003] Currently, the method used for cleaning turbine blades is usually high-pressure spray cleaning. However, due to the complex structure of turbine blades, which has complex curved surfaces, tenons, air film holes, etc., general-purpose cleaning equipment is difficult to accurately rinse every corner of the turbine blades. Repeated rinsing is required to ensure thorough cleaning, resulting in slow efficiency.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model is an auxiliary cleaning device for detecting cracks in aero-engine turbine blades, including a base;

[0006] The drive components are located inside the base.

[0007] A swinging component is mounted on the drive assembly. A clamping assembly is installed on the swinging component. The clamping assembly is used to clamp the turbine blade. The drive assembly is used to drive the swinging component to move, so that the swinging component drives the turbine blade clamped by the clamping assembly to swing.

[0008] The spray assembly, rotatably mounted on the base, is used to wash the turbine blades held by the clamping assembly.

[0009] The linkage is set on the base, and the drive component can synchronously drive the spray component to rotate through the linkage.

[0010] The drive assembly includes a drive unit, which is disposed in the inner cavity of the base, and a drive rod is coaxially disposed at the drive end of the drive unit.

[0011] The swing component includes a rotating disk, which is coaxially mounted on the upper end of the drive rod. A connecting plate is inclinedly mounted on the rotating disk, and a connecting rod is mounted on the connecting plate. A mounting post is coaxially mounted on the connecting rod. A clamping assembly is mounted on the upper surface of the mounting post. The swing component also includes a guide frame, on which a first guide sleeve and a second guide sleeve are symmetrically arranged. The first guide sleeve and the second guide sleeve are arranged in a cross shape on the guide frame. A locking post is symmetrically mounted on the outer circumference of the mounting post. One locking post is rotatably mounted in one of the first guide sleeves. The swing component also includes two mounting brackets, both of which are mounted on the upper surface of the base. One second guide sleeve is rotatably mounted on one mounting bracket.

[0012] The clamping assembly includes a clamping seat, the bottom of which is coaxially mounted on a mounting post. The upper surface of the clamping seat has symmetrical grooves. A bidirectional screw is rotatably mounted inside the clamping seat. The threads at both ends of the bidirectional screw have different directions. A handle is mounted on one end of the bidirectional screw, and the handle is located outside the clamping seat. Moving blocks are rotatably mounted on both ends of the bidirectional screw. Each moving block slides into a groove. An arc-shaped clamping block is mounted on the upper end of each moving block.

[0013] The spray assembly includes a rotating ring, which is rotatably mounted on the upper surface of the base. The inner wall of the rotating ring is provided with a toothed ring. A gate-shaped box is vertically mounted on the rotating ring. Spray heads are evenly arranged on the inner walls and bottom wall of the gate-shaped box. A conveying pipe is provided on the top of the gate-shaped box, and the conveying pipe is coaxial with the rotating ring. A connecting pipe is rotatably mounted on the conveying pipe.

[0014] The linkage includes a rotating rod that is rotatably mounted on the upper surface of the base. A driven gear is coaxially mounted on the upper end of the rotating rod, and the driven gear meshes with a gear ring. A driven disc is coaxially mounted on the lower end of the rotating rod. A drive disc is coaxially mounted on the drive rod, and the drive disc and the driven disc are connected by a belt.

[0015] This utility model has the following beneficial effects:

[0016] This invention uses a swinging component to drive the blades in a compound swinging motion, combined with the circumferential rotation of the spray assembly and the multi-directional spray head. This allows the blades to actively adjust their attitude and the spray assembly to circumferentially rinse in a coordinated cleaning mode. This comprehensively covers the complex curved surfaces, tenons, air film holes, and other hidden parts of the blades, thoroughly removing impurities such as oil, carbon deposits, and metal shavings. This prevents impurities from obscuring cracks or forming false defects, providing a clean surface for subsequent crack detection, ensuring the accuracy of the detection results, and reducing flight safety hazards from the source.

[0017] This invention utilizes a clamping assembly that can accommodate turbine blades of different sizes and ensure that the turbine blades do not loosen or shift during subsequent oscillating cleaning, thus improving practicality and making it applicable to turbine blades of various sizes.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the spray assembly structure of this utility model;

[0021] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the base of this utility model;

[0023] Figure 5 This is a schematic diagram of the swing component structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the clamping component structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the linkage structure of this utility model;

[0026] Figure 8 For the present utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Base; 2. Drive assembly; 3. Swinging component; 4. Clamping assembly; 5. Spray assembly; 6. Linkage component; 7. Drive device; 8. Drive rod; 9. Rotating disk; 10. Linkage plate; 11. Linkage rod; 12. Mounting post; 13. Guide frame; 14. First guide sleeve; 15. Second guide sleeve; 16. Locking post; 17. Mounting bracket; 18. Clamping seat; 19. Slide groove; 20. Bidirectional screw; 21. Turning handle; 22. Moving block; 23. Arc-shaped clamping block; 24. Rotating ring; 25. Gear ring; 26. Gate-shaped box; 27. Spray head; 28. Conveying pipe; 29. ​​Connecting pipe; 30. Rotating rod; 31. Driven gear; 32. Driven disk; 33. Drive disk. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-8 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0029] Please see Figures 1-4 As shown:

[0030] This embodiment provides an auxiliary cleaning device for detecting cracks in aero-engine turbine blades, including a base 1, a drive assembly 2 inside the base 1, a swinging component 3 on the drive assembly 2, and a clamping assembly 4 mounted on the swinging component 3. The clamping assembly 4 is used to clamp the turbine blade. When the drive assembly 2 is activated, it drives the swinging component 3 to move, causing the swinging component 3 to swing the turbine blade clamped by the clamping assembly 4. A spray assembly 5 is rotatably mounted on the base 1, and a linkage 6 is provided on the base 1, so that the drive assembly 2 can synchronously drive the spray assembly 5 to rotate around the turbine blade clamped by the clamping assembly 4 through the linkage 6. Thus, the spray assembly 5 cleans the turbine blade. Under the dual action of the turbine blade swinging and the spray assembly 5 rotating, the spray assembly 5 can cover all corners of the turbine blade, making it easier for the water to penetrate into holes or gaps, improving cleaning efficiency and effect. After cleaning, the drive assembly 2 is turned off, and the turbine blade can be removed for subsequent crack detection.

[0031] like Figures 2-5As shown, the drive assembly 2 includes a drive device 7, which may include, but is not limited to, a motor. The drive device 7 is disposed in the inner cavity of the base 1. A drive rod 8 is coaxially disposed at the drive end of the drive device 7. The swing component 3 includes a rotating disk 9, which is coaxially disposed at the upper end of the drive rod 8. A connecting plate 10 is inclinedly disposed on the rotating disk 9. A connecting rod 11 is disposed on the connecting plate 10. A mounting post 12 is coaxially disposed on the connecting rod 11. A clamping assembly 4 is disposed on the upper surface of the mounting post 12. The swing component 3 also includes a guide frame 13, which is a square frame. A first guide sleeve 14 and a second guide sleeve 15 are symmetrically disposed on the guide frame 13. The first guide sleeve 14 and the second guide sleeve 15 are arranged in a cross shape on the guide frame 13. A locking post 16 is symmetrically mounted on the outer periphery of the mounting post 12. One locking post 16 is rotatably mounted in one first guide sleeve 14. The swing component 3 also includes a mounting bracket 17. There are two mounting brackets 17, both of which are mounted on the upper surface of the base 1. Each second guide sleeve 15 is rotatably mounted on a mounting bracket 17. After the drive device 7 is started, the drive rod 8 drives the rotating disk 9 to rotate. Since the connecting plate 10 is inclined on the rotating disk 9, the rotation of the rotating disk 9 will cause the connecting plate 10 to make a circular motion around the axis of the rotating disk 9, thereby driving the mounting column 12 to move through the connecting rod 11. At this time, the locking pin 16 on the outer periphery of the mounting column 12 slides and rotates in the first guide sleeve 14 of the guide frame 13. At the same time, the guide frame 13 rotates on the mounting bracket 17 through the second guide sleeve 15. The cross-shaped first guide sleeve 14 and the second guide sleeve 15 form a double limit, converting the circular motion of the rotating disk 9 into the compound oscillation of the mounting column 12, thereby driving the turbine blades clamped on the clamping assembly 4 to synchronously rotate, tilt or shake at multiple angles, so that the spray assembly 5 can cover every corner of the turbine blades, solving the problem of incomplete cleaning of complex turbine blades by general cleaning equipment and improving cleaning efficiency.

[0032] like Figure 2 , Figure 5 , Figure 6As shown, the clamping assembly 4 includes a clamping seat 18, the bottom of which is coaxially mounted on the mounting post 12. The upper surface of the clamping seat 18 has symmetrically arranged grooves 19. A bidirectional screw 20 is rotatably mounted inside the clamping seat 18. The threads at both ends of the bidirectional screw 20 have different directions. A handle 21 is mounted on one end of the bidirectional screw 20, and the handle 21 is located outside the clamping seat 18. Moving blocks 22 are rotatably mounted on both ends of the bidirectional screw 20. Each moving block 22 slides in conjunction with a groove 19. An arc-shaped clamping block 23 is mounted on the upper end of each moving block 22. When the operator rotates the handle 21, the bidirectional screw 20 rotates. Because the threads at both ends of the bidirectional screw 20 have opposite directions, and... The movable blocks 22 are threaded to both ends of the screw and limited by the slide groove 19. The rotation of the bidirectional screw 20 will be converted into the two movable blocks 22 sliding in opposite directions along the slide groove 19: when sliding in opposite directions, the arc-shaped clamping block 23 at the upper end of the movable block 22 gradually approaches until it fits the curved surfaces on both sides of the turbine blade, and forms a ring-shaped clamping by utilizing the adaptability of the arc-shaped clamping block 23 to the surface of the turbine blade; when sliding in opposite directions, the arc-shaped clamping block 23 separates, making it easier to pick up and put down the turbine blade. This makes the clamping assembly 4 adaptable to turbine blades of different sizes and ensures that the turbine blades do not loosen or shift during the subsequent oscillating cleaning process, thus improving its practicality and making it suitable for turbine blades of various sizes.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8As shown, the spray assembly 5 includes a rotating ring 24, which is rotatably mounted on the upper surface of the base 1. A toothed ring 25 is provided on the inner wall of the rotating ring 24. A gate-shaped box 26 is vertically mounted on the rotating ring 24. Spray heads 27 are evenly arranged on the inner walls and bottom wall of the gate-shaped box 26. A conveying pipe 28 is provided on the top of the gate-shaped box 26, and the conveying pipe 28 is coaxial with the rotating ring 24. A connecting pipe 29 is rotatably mounted on the conveying pipe 28, and the conveying pipe 28 is connected to an external liquid supply device through the connecting pipe 29. The cleaning liquid enters the gate-shaped box 26 through the connecting pipe 29 and the conveying pipe 28, and is then sprayed out through each spray head 27. The linkage 6 includes a rotating rod 30, which is rotatably mounted through the upper surface of the base 1. A driven gear 31 is coaxially mounted on the upper end of the rotating rod 30, meshing with the toothed ring 25. A driven disc 32 is coaxially mounted on the lower end of the rotating rod 30. A drive rod 8 is coaxially mounted with... There is a drive disk 33, which is connected to the driven disk 32 by a belt. When the drive device 7 is started, the drive rod 8 will drive the drive disk 33 to rotate synchronously. The drive disk 33 drives the driven disk 32 and the rotating rod 30 to rotate synchronously through the belt. The driven gear 31 at the upper end of the rotating rod 30 rotates accordingly. Because the driven gear 31 meshes with the toothed ring 25 on the inner wall of the rotating ring 24, it will drive the rotating ring 24 to rotate around the blade held by the clamping assembly 4 on the upper surface of the base 1. The rotation of the rotating ring 24 synchronously drives the gate box 26 and the spray head 27 to rotate around the blade. Then, under the swinging motion of the blade, it sprays the blade at multiple angles, making it easier for the water to penetrate into the gaps of the complex structure of the turbine blade. This solves the problem of incomplete cleaning of complex structure blades by general cleaning equipment, improves cleaning efficiency, ensures the accuracy of subsequent crack detection results, and provides a guarantee for flight safety.

[0034] Meanwhile, by setting the delivery pipe 28 coaxially with the rotating ring 24, and rotatably setting the connecting pipe 29 on the delivery pipe 28, the external liquid supply device is connected to the connecting pipe 29. This ensures that when the gate box 26 rotates under the drive of the rotating ring 24, the rotation of the connecting pipe 29 and its coaxial setting can prevent the external liquid supply device from rotating with the gate box 26, and the external liquid supply device can stably deliver cleaning fluid into the gate box 26.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 this utility model according to the specific circumstances.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An auxiliary cleaning device for detecting cracks in aero-engine turbine blades, characterized in that, include: Base (1); The drive component (2) is located inside the base (1); A swinging component (3) is mounted on a drive assembly (2). A clamping assembly (4) is installed on the swinging component (3). The clamping assembly (4) is used to clamp the turbine blade. The drive assembly (2) is used to drive the swinging component (3) to move so that the swinging component (3) drives the turbine blade clamped by the clamping assembly (4) to swing. The spray assembly (5) is rotatably mounted on the base (1) and is used to wash the turbine blades held by the clamping assembly (4). The linkage (6) is set on the base (1), and the drive component (2) can synchronously drive the spray component (5) to rotate through the linkage (6).

2. The auxiliary cleaning device for detecting cracks in aero-engine turbine blades according to claim 1, characterized in that, The drive assembly (2) includes a drive device (7), which is disposed in the inner cavity of the base (1), and a drive rod (8) is coaxially disposed at the drive end of the drive device (7).

3. The auxiliary cleaning device for detecting cracks in aero-engine turbine blades according to claim 2, characterized in that, The swing component (3) includes a rotating disk (9), which is coaxially mounted on the upper end of the drive rod (8). A connecting plate (10) is inclinedly mounted on the rotating disk (9), and a connecting rod (11) is mounted on the connecting plate (10). A mounting post (12) is coaxially mounted on the connecting rod (11). The clamping assembly (4) is mounted on the upper surface of the mounting post (12). The swing component (3) also includes a guide frame (13), on which a first guide sleeve (14) and a second guide sleeve (15) are symmetrically mounted. The guide sleeve (15) is arranged in a cross shape on the guide frame (13). The outer circumference of the mounting post (12) is symmetrically equipped with locking posts (16). One locking post (16) is rotatably installed in one of the first guide sleeves (14). The swing member (3) also includes a mounting bracket (17). There are two mounting brackets (17), and both are installed on the upper surface of the base (1). One of the second guide sleeves (15) is rotatably installed on one mounting bracket (17).

4. The auxiliary cleaning device for detecting cracks in aero-engine turbine blades according to claim 3, characterized in that, The clamping assembly (4) includes a clamping seat (18), the bottom of which is coaxially mounted on the mounting post (12). The upper surface of the clamping seat (18) has symmetrical grooves (19). A bidirectional screw (20) is rotatably mounted inside the clamping seat (18). The threads at both ends of the bidirectional screw (20) are not in the same direction. A handle (21) is mounted at one end of the bidirectional screw (20), and the handle (21) is located outside the clamping seat (18). Moving blocks (22) are rotatably mounted at both ends of the bidirectional screw (20). One moving block (22) is slidably engaged with one groove (19). An arc-shaped clamping block (23) is mounted on the upper end of each moving block (22).

5. The auxiliary cleaning device for detecting cracks in aero-engine turbine blades according to claim 4, characterized in that, The spray assembly (5) includes a rotating ring (24), which is rotatably mounted on the upper surface of the base (1). A toothed ring (25) is provided on the inner wall of the rotating ring (24). A gate-shaped box (26) is vertically arranged on the rotating ring (24). Spray heads (27) are evenly arranged on the inner walls and bottom wall of the gate-shaped box (26). A conveying pipe (28) is provided on the top of the gate-shaped box (26), and the conveying pipe (28) and the rotating ring (24) are coaxially arranged. A connecting pipe (29) is rotatably mounted on the conveying pipe (28).

6. The auxiliary cleaning device for detecting cracks in aero-engine turbine blades according to claim 5, characterized in that, The linkage (6) includes a rotating rod (30), which is rotatably mounted on the upper surface of the base (1). A driven gear (31) is coaxially mounted on the upper end of the rotating rod (30), and the driven gear (31) meshes with a gear ring (25). A driven disc (32) is coaxially mounted on the lower end of the rotating rod (30). A drive disc (33) is coaxially mounted on the drive rod (8), and the drive disc (33) and the driven disc (32) are connected by a belt.

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