Ultrasonic imaging device for detecting internal debonding defects of a blade

Abstract

The utility model relates to the field of blade internal defect detection discloses blade internal delamination defect ultrasonic imaging detection device, including the connecting plate, the lateral wall of connecting plate is fixedly connected with the connecting long rod, the lateral wall of connecting long rod is fixedly connected with the stand, the lateral wall of stand is fixedly connected with the connecting short pole, the connecting short pole is provided with two symmetries, the upside fixedly connected with the blade root support plate of symmetry connecting short pole, the downside fixedly connected with motor no.

Description

Technical Field

[0001] This utility model relates to the field of blade internal defect detection, and in particular to an ultrasonic imaging detection device for blade internal degumming defects. Background Technology

[0002] Wind turbine blades are one of the core components of wind turbines, and their main function is to convert wind energy into mechanical energy to drive the generator. Blades are subject to complex mechanical environments and temperature changes, making them prone to delamination defects. If these defects are not detected in time, they may continue to expand, eventually leading to blade failure and causing serious safety accidents and economic losses.

[0003] A search revealed Chinese Patent Publication No. CN217237895U, which discloses an ultrasonic flaw detection device for blade inspection. The device includes a blade support frame, a height adjustment device above the support frame, and a flaw detection device above the height adjustment device. The flaw detection device comprises a first flaw detection bracket and a second flaw detection bracket, which are symmetrically arranged. A first sliding groove is provided above the first flaw detection bracket, and a first sliding block is slidably disposed within the first sliding groove. A first screw drive motor is provided on the left side of the first sliding groove, and the first sliding block is slidably sleeved on the screw of the first screw drive motor. This invention first uses a first height adjusting cylinder, a second height adjusting cylinder, a third height adjusting cylinder, and a fourth height adjusting cylinder to lower the height of the first and second flaw detection brackets to the minimum, making it easier to hoist and place the blade onto the blade support frame. Then, the blade root is placed on the arc-shaped blade root support plate, and the blade top is placed on the U-shaped fan blade support plate. The above arrangement can achieve stable support for the blade and prevent the blade from shaking during the flaw detection process, thus affecting the flaw detection results.

[0004] In the above-mentioned technology, the blade is stably supported by placing the blade root on the arc-shaped blade root support plate and the blade top on the U-shaped fan blade support plate, which prevents the blade from shaking and affecting the inspection results during the inspection process. However, the positions of the U-shaped fan blade support plate and the arc-shaped blade root support plate are fixed and the flexibility is poor. Therefore, an ultrasonic imaging detection device for degumming defects inside the blade is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an ultrasonic imaging detection device for degumming defects inside blades, which aims to improve the problem of poor blade support flexibility in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an ultrasonic imaging detection device for degumming defects inside blades, comprising a connecting plate, a connecting long rod fixedly connected to the side wall of the connecting plate, a column fixedly connected to the side wall of the connecting long rod, a connecting short rod fixedly connected to the side wall of the column, two symmetrical connecting short rods, a blade root support plate fixedly connected to the upper side of the symmetrical connecting short rods, a motor fixedly connected to the lower side of the connecting short rods, a screw rod penetrating and rotatably connected to the upper inner wall of the connecting short rods, a screw rod fixedly connected to the lower inner wall of the screw rod on the output shaft of the motor rod, a connecting pipe threaded to the upper side of the screw rod, a blade support plate fixedly connected to the upper side of the connecting pipe, a guide ring fixedly connected to the front side of the blade support plate, a pulley provided on the inner wall of the guide ring, a detection machine assembly provided on the upper side of the column, the detection machine assembly being used for blade detection, and a support assembly provided on the inner wall of the connecting plate, the support assembly being used for supporting the ultrasonic imaging detection device.

[0007] As a further description of the above technical solution: The support assembly includes a gear, which is rotatably connected to the inner wall of the connecting plate. A limit block is fixedly connected to the upper inner wall of the gear. A toothed plate meshes with the gear. An extension plate is fixedly connected to the front side of the toothed plate. A fixing block is fixedly connected to the upper side of the connecting plate. A locking pin is elastically connected to the upper side of the fixing block by a spring.

[0008] As a further description of the above technical solution: The testing machine assembly includes a mounting plate, which is fixedly connected to the upper side of the column. A second motor is fixedly connected to the upper side of the mounting plate. A second screw is fixedly connected to the output shaft of the second motor, and a testing probe is threaded onto the second screw.

[0009] As a further description of the above technical solution: One end of the spring is fixedly connected to the upper side of the fixing block, and the other end of the spring is fixedly connected to the outer wall of the locking post.

[0010] As a further description of the above technical solution: The outer wall of the locking post is slidably connected to the inner wall of the fixing block, and the lower side of the locking post is engaged with the outer wall of the limiting block.

[0011] As a further description of the above technical solution: The guide ring is slidably connected to the outer wall of the column.

[0012] As a further description of the above technical solution: The outer wall of the toothed plate is slidably connected to the inner wall of the connecting plate.

[0013] As a further description of the above technical solution: The expansion plates are configured as two symmetrical ones, with the lower sides of the two expansion plates in contact with the ground.

[0014] This utility model has the following beneficial effects: 1. In this utility model, an adjustable blade support plate is provided. With the help of a motor to drive the screw to rotate, the connecting pipe and the blade support plate are moved, which can adapt to the support requirements of blades of different sizes and achieve stable support for different blades with high flexibility.

[0015] 2. In this utility model, the device is equipped with a support component. Through gears, toothed plates and other transmissions, the two side extension plates can be extended outwards simultaneously to increase the contact area with the ground. Furthermore, the position of the extension plates is fixed by the locking of the locking post and the limiting block, which can effectively improve the overall support stability of the device and avoid the impact of device shaking on the accuracy of the test results during the test. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the ultrasonic imaging detection device for degumming defects inside blades proposed in this utility model. Figure 2 This is a schematic cross-sectional view of the guide ring of the ultrasonic imaging detection device for internal degumming defects in blades proposed in this utility model. Figure 3 This invention provides a schematic diagram of the toothed plate and the ultrasonic imaging detection device for internal degumming defects in blades. Figure 4 This is a schematic diagram of the fixing block and locking post of the ultrasonic imaging detection device for degumming defects inside blades proposed in this utility model.

[0017] Legend: 1. Connecting plate; 2. Expansion plate; 3. Connecting long rod; 4. Column; 5. Motor 1; 6. Screw 1; 7. Connecting short rod; 8. Connecting pipe; 9. Blade support plate; 10. Guide ring; 11. Mounting plate; 12. Motor 2; 13. Screw 2; 14. Detection probe; 15. Pulley; 16. Gear; 17. Limiting block; 18. Tooth plate; 19. Fixing block; 20. Spring; 21. Locking post; 22. Blade root support plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an ultrasonic imaging detection device for internal degumming defects in blades, comprising a connecting plate 1. The connecting plate 1 is the basic connecting component of the entire device, used to integrate various structural parts. A connecting rod 3 is fixedly connected to the side wall of the connecting plate 1, serving as a connector to the connecting plate 1 and other structures such as a column 4. A column 4 is fixedly connected to the side wall of the connecting rod 3, serving as the main support of the device, used to support the detection machine components above and provide sliding guidance for components such as the blade support plate 9. A connecting rod 7 is fixedly connected to the side wall. The connecting rod 7 is used to connect the column 4 to the blade root support plate 22 and the motor 5, etc. There are two symmetrical connecting rods 7. The blade root support plate 22 is fixedly connected to the upper side of the symmetrical connecting rod 7. The blade root support plate 22 is used to support the blade root part and provide a stable support foundation for blade inspection. The motor 5 is fixedly connected to the lower side of the connecting rod 7. The motor 5 is the power source used to drive the screw 6 to rotate, thereby driving the connecting pipe 8 and other components to move. The upper inner wall of the connecting rod 7 is penetrated by... A screw 6 is rotatably connected to the screw rod. The screw 6 rotates, using a threaded transmission to move the connecting pipe 8 up and down. The lower inner wall of the screw 6 is fixedly connected to the output shaft of the motor 5. The upper side of the screw 6 is threadedly connected to the connecting pipe 8, which engages with the screw 6 to convert the rotation of the screw 6 into its own vertical linear motion. A blade support plate 9 is fixedly connected to the upper side of the connecting pipe 8. The blade support plate 9 supports the main body of the blade and, together with the blade root support plate 22, supports and fixes the blade. The front of the blade support plate 9... A guide ring 10 is fixedly connected to the side. The guide ring 10 is sleeved on the column 4 and guides the up and down movement of the blade support plate 9 to ensure the stability of the movement. The guide ring 10 is slidably connected to the outer wall of the column 4. A pulley 15 is provided on the inner wall of the guide ring 10. The pulley 15 can reduce the friction between the guide ring 10 and the column 4 and make the sliding smoother. A detection machine assembly is provided on the upper side of the column 4. The detection machine assembly is used for the detection of the blade. A support assembly is provided on the inner wall of the connecting plate 1. The support assembly is used to support the ultrasonic imaging detection device.

[0020] Reference Figure 1 , Figure 3 and Figure 4The support assembly includes a gear 16, which is the transmission component of the support assembly. The movement of one toothed plate 18 drives the movement of the other toothed plate 18 via the gear 16. The gear 16 is rotatably connected to the inner wall of the connecting plate 1. A limiting block 17 is fixedly connected to the upper inner wall of the gear 16. The limiting block 17 is used to engage and limit the locking pin 21, fixing the position of the gear 16. A toothed plate 18 meshes with the gear 16. When the gear 16 rotates, it drives the toothed plate 18 to slide. The outer wall of the toothed plate 18 is slidably connected to the inner wall of the connecting plate 1. An extension plate 2 is fixedly connected to the front side of the toothed plate 18. The extension plate 2 is used to extend the contact area between the device and the ground, increasing... For strong support and stability, the expansion plates 2 are set as two symmetrical ones, with the lower sides of the two expansion plates 2 in contact with the ground. The upper side of the connecting plate 1 is fixedly connected to the fixing block 19. The fixing block 19 is used to install components such as spring 20 and locking post 21. The upper side of the fixing block 19 is elastically connected to the locking post 21 through the spring 20. The spring 20 provides elastic restoring force to the locking post 21, so that the locking post 21 can be locked into or disengaged from the limiting block 17. The outer wall of the locking post 21 is slidably connected to the inner wall of the fixing block 19. The lower side of the locking post 21 is locked into the outer wall of the limiting block 17. One end of the spring 20 is fixedly connected to the upper side of the fixing block 19, and the other end of the spring 20 is fixedly connected to the outer wall of the locking post 21.

[0021] Reference Figure 1 The inspection machine assembly includes a mounting plate 11, which serves as the mounting base for the inspection machine assembly and supports components such as motor 12, screw 13, and inspection probe 14. The mounting plate 11 is fixedly connected to the upper side of the column 4. Motor 12 is fixedly connected to the upper side of the mounting plate 11. Motor 12 provides power to the inspection machine assembly and drives screw 13 to rotate. Screw 13 is fixedly connected to the output shaft of motor 12. Screw 13 rotates under the drive of motor 12, thereby moving the inspection probe 14. The inspection probe 14 is threadedly connected to screw 13. The inspection probe 14 is threadedly engaged with screw 13, converting the rotation of screw 13 into its own linear movement, thereby realizing the inspection and scanning of the blade.

[0022] Working principle: In use, first adjust the stability of the device using the support components. Pull the locking post 21 upwards to disengage it from the limiting block 17. The spring 20 is stretched, pulling one side of the extension plate 2 outwards. Through the gear 16, the other side of the extension plate 2 extends outwards, increasing the contact area with the ground. Release the locking post 21, and the spring 20 returns to its original position, pushing the locking post 21 into the corresponding limiting block 17, fixing the position of the extension plate 2 and ensuring the device is stable.

[0023] The blade to be tested is placed on the blade root support plate 22 and the blade support plate 9. The motor 5 is started, and its output shaft drives the screw 6 to rotate. The connecting pipe 8, which is threaded to the screw 6, drives the blade support plate 9 to move up and down. At the same time, the guide ring 10 slides along the column 4, and the pulley 15 reduces friction, thereby realizing the height adjustment of the blade support plate 9 to accommodate blades of different sizes and stably support the blade.

[0024] After the blade is fixed, the inspection machine assembly is started. Motor 2 12 drives screw 2 13 to rotate, and the inspection probe 14, which is threadedly connected to screw 2 13, moves linearly to perform a full scan of the blade. The inspection probe 14 emits ultrasonic waves, which propagate inside the blade. When the ultrasonic waves encounter a debonding defect, they are reflected. The reflected signal is received by the inspection probe 14, processed, and forms an ultrasonic image, thus completing the detection of debonding defects inside the blade.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic imaging detection device for degumming defects inside blades, comprising a connecting plate (1), characterized in that: A connecting long rod (3) is fixedly connected to the side wall of the connecting plate (1). A column (4) is fixedly connected to the side wall of the connecting long rod (3). A connecting short rod (7) is fixedly connected to the side wall of the column (4). Two symmetrical connecting short rods (7) are provided. A leaf root support plate (22) is fixedly connected to the upper side of the symmetrical connecting short rods (7). A motor (5) is fixedly connected to the lower side of the connecting short rods (7). A screw (6) is rotatably connected through the upper inner wall of the connecting short rods (7). The lower inner wall of the screw (6) Fixedly connected to the output shaft of motor 1 (5), the upper side of screw 1 (6) is threaded with a connecting pipe (8), the upper side of the connecting pipe (8) is fixedly connected with a blade support plate (9), the front side of the blade support plate (9) is fixedly connected with a guide ring (10), the inner wall of the guide ring (10) is provided with a pulley (15), the upper side of the column (4) is provided with a detection machine assembly, the detection machine assembly is used for blade detection, the inner wall of the connecting plate (1) is provided with a support assembly, the support assembly is used for supporting the ultrasonic imaging detection device.

2. The ultrasonic imaging detection device for degumming defects inside blades according to claim 1, characterized in that: The support assembly includes a gear (16), which is rotatably connected to the inner wall of the connecting plate (1). A limit block (17) is fixedly connected to the upper inner wall of the gear (16). A toothed plate (18) meshes with the gear (16). An extension plate (2) is fixedly connected to the front side of the toothed plate (18). A fixing block (19) is fixedly connected to the upper side of the connecting plate (1). A locking post (21) is elastically connected to the upper side of the fixing block (19) via a spring (20).

3. The ultrasonic imaging detection device for degumming defects inside blades according to claim 1, characterized in that: The testing machine assembly includes a mounting plate (11), which is fixedly connected to the upper side of the column (4). A second motor (12) is fixedly connected to the upper side of the mounting plate (11). A second screw (13) is fixedly connected to the output shaft of the second motor (12). A testing probe (14) is threaded onto the second screw (13).

4. The ultrasonic imaging detection device for degumming defects inside blades according to claim 2, characterized in that: One end of the spring (20) is fixedly connected to the upper side of the fixing block (19), and the other end of the spring (20) is fixedly connected to the outer wall of the locking post (21).

5. The ultrasonic imaging detection device for degumming defects inside blades according to claim 2, characterized in that: The outer wall of the locking post (21) is slidably connected to the inner wall of the fixing block (19), and the lower side of the locking post (21) is engaged with the outer wall of the limiting block (17).

6. The ultrasonic imaging detection device for degumming defects inside blades according to claim 1, characterized in that: The guide ring (10) is slidably connected to the outer wall of the column (4).

7. The ultrasonic imaging detection device for degumming defects inside blades according to claim 2, characterized in that: The outer wall of the toothed plate (18) is slidably connected to the inner wall of the connecting plate (1).

8. The ultrasonic imaging detection device for degumming defects inside blades according to claim 2, characterized in that: The expansion plates (2) are arranged in two symmetrical positions, with the lower sides of the two expansion plates (2) in contact with the ground.

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