Automatic flaw detection device for wind turbine blade maintenance

Abstract

The utility model discloses an automatic flaw detection equipment for wind power blade maintenance relates to wind power blade maintenance technical field, including horizontal rail, rack and pinion. The utility model discloses an automatic flaw detection equipment for wind power blade maintenance, through with the extension rail limit fixed outside vertical rail, increase the stroke of slide seat vertical movement, and then in the condition of not moving flaw detection equipment, expand the scanning range of scanner, and then the user is convenient according to the actual demand of the scene, flexible adjustment scanner vertical movement's stroke, improve the flexibility of flaw detection equipment when using, and reduce the number of repeatedly handling and positioning main track, thereby improve the detection efficiency, through to the modularization design of scanner, and then the user is convenient quick replacement different function's probe or part to adapt to different detection demand.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade maintenance technology, specifically to an automatic flaw detection device for wind turbine blade maintenance. Background Technology

[0002] Wind turbine blade maintenance refers to a series of planned, preventative, and corrective inspections, cleaning, repairs, protection, and optimizations undertaken to ensure the long-term, safe, and efficient operation of the blades—a critical component of wind turbine generators. Automatic flaw detection equipment for wind turbine blade maintenance refers to a specialized non-destructive testing system integrated into an automated platform. This system can move, scan, and collect data from wind turbine blades according to a preset program with minimal or no intervention, and automatically or semi-automatically identify, locate, and assess internal or surface defects.

[0003] Existing automatic flaw detection equipment works by moving a scanner along a rigid guide rail. The scanner emits ultrasonic waves, which are then coupled with water spray to transmit the ultrasonic waves into the blade, thereby scanning and detecting flaws in the wind turbine blade. However, the scanning range of the scanner is limited by the length of the rigid guide rail, and the length of the rigid guide rail is difficult to adjust, resulting in poor operating efficiency and flexibility of the flaw detection equipment. Utility Model Content

[0004] The purpose of this invention is to provide an automatic flaw detection device for wind turbine blade maintenance, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic flaw detection device for wind turbine blade maintenance, comprising a horizontal track, a rack and a gear. A rack is fixedly connected to one side of the outer wall of the horizontal track, and a gear is meshed with the outer wall of the rack. Mounting seats are rotatably connected to both sides of the outer wall of the gear, and a servo motor is fixedly connected to one side of the outer wall of the mounting seat. The output end of the servo motor is connected to the gear. A vertical track is provided below the horizontal track, and the outer wall of the vertical track is fixedly connected to the mounting seat. A slide block is slidably connected to the outer wall of the vertical track, and a scanner is provided on one side of the outer wall of the slide block. A phased array probe is installed inside the scanner. Bases are connected to both sides of the bottom end of the horizontal track, and columns are connected to the bottom end of the outer wall of the base. A fixing frame is installed at the bottom end of the column, and a suction cup with an equal included angle is connected inside the bottom end of the fixing frame.

[0006] The vertical track has extension tracks connected to both sides of its outer wall, and a limiting seat is fixedly connected to one side of the outer wall of the extension track. A rotating column is rotatably connected inside the extension track, and a threaded column is threaded inside the limiting seat. The outer wall of the rotating column is welded to the threaded column. The threaded column is used to fix the vertical track to the vertical track, thereby completing the extension of the vertical track.

[0007] By flexibly adjusting the vertical movement stroke of the scanner, the scanning range of the scanner is expanded without moving the flaw detection equipment, and the frequency of repeatedly carrying and positioning the main rail is reduced, thereby improving the detection efficiency.

[0008] Preferably, two inner sides of the vertical rail are provided with limiting grooves and threaded holes, the limiting seat can extend into the limiting groove, and the threaded post can extend into the threaded hole.

[0009] The threaded post is driven to rotate by turning the rotating post, so that the threaded post is moved out of the limiting seat and inserted into the vertical rail, thereby limiting and fixing the extension rail on the outer side of the vertical rail.

[0010] Preferably, a limiting member is welded to the middle part of the outer wall of the sliding seat, the limiting member has an "L"-shaped structure, the bottom end of the limiting member is connected with a limiting sleeve, and one side of the outer wall of the limiting sleeve is fixedly connected with the scanner.

[0011] It is only necessary to first turn the backing ring downward to disengage from the threaded pin, then turn the threaded pin upward to disengage from the limiting sleeve, and then horizontally move the scanner to disengage the limiting sleeve from the limiting member.

[0012] Preferably, a support member is welded to the middle part of the outer wall of the limiting member, one side of the outer wall of the support member is connected with a support sleeve, and one side of the outer wall of the support sleeve is fixedly connected with the scanner.

[0013] By inserting the limiting member into the limiting sleeve, the support member is inserted into the support sleeve at the same time, so as to provide auxiliary support for the scanner.

[0014] Preferably, the cross section of the limiting sleeve is of a "square"-shaped structure, a threaded pin penetrates through the middle part of the limiting sleeve, the threaded pin is in threaded connection with the limiting member, and the bottom end of the limiting member is in threaded connection with a backing ring.

[0015] The threaded pin is turned to penetrate through the limiting sleeve and the limiting member, and then the backing ring is turned upward along the threaded pin until the backing ring is attached to the outer wall of the limiting sleeve, so that the installation work of the scanner can be completed.

[0016] Preferably, a positioning block is welded to the middle part of the top end of the base, the positioning block can extend into the transverse rail, a fixing member penetrates through the interior of the transverse rail, and the fixing member is slidably connected with the transverse rail.

[0017] Preferably, the transverse rail and the upright post are of an "I"-shaped structure, one side of the outer wall of the fixing member is connected with a fixing sleeve, and the middle part of the outer wall of the fixing sleeve is welded to the outer wall of the transverse rail.

[0018] By moving the transverse rail, the positioning block on the top of the base is inserted into the transverse rail, then the fixing member is moved to penetrate through the transverse rail, the positioning block and the fixing sleeve, thereby limiting the transverse rail to prevent it from moving arbitrarily.

[0019] Preferably, the fixed sleeve has a sliding pin inside, and a threaded groove is provided on one side of the outer wall of the pin, and a threaded sleeve is threadedly connected to the outer wall of the threaded groove.

[0020] The assembly work is completed by moving the pin through the fastener and the fixed sleeve, then contacting the threaded sleeve with the pin, and then rotating the threaded sleeve along the pin to fit against the outer wall of the fixed sleeve, and then reinforcing the transverse track.

[0021] As can be seen from the above, the automatic flaw detection equipment for wind turbine blade maintenance provided by this utility model has the following beneficial effects.

[0022] 1. By fixing the extension rail to the outside of the vertical rail, the vertical movement stroke of the slide is increased, thereby expanding the scanning range of the scanner without moving the flaw detection equipment. This allows users to flexibly adjust the vertical movement stroke of the scanner according to the actual needs of the site, improving the flexibility of the flaw detection equipment and reducing the number of times the main guide rail needs to be moved and positioned, thus improving the detection efficiency.

[0023] 2. By modularizing the scanner, users can easily replace probes or components with different functions to meet different testing needs.

[0024] 3. The transverse track with quick-release limit prevents it from moving randomly, thus facilitating users to quickly assemble and disassemble the flaw detection equipment. The segmented design also makes it easy for people to transport the flaw detection equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the column of this utility model;

[0027] Figure 3 This is a top-view cross-sectional view of the vertical track structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the extended track of this utility model;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the rotating column of this utility model;

[0030] Figure 6 This is a three-dimensional cross-sectional view of the support sleeve of this utility model;

[0031] Figure 7 This is a three-dimensional cross-sectional view of the limiting sleeve of this utility model;

[0032] Figure 8This is a side view sectional diagram of the transverse track structure of this utility model;

[0033] Figure 9 This is a top view sectional diagram of the fixing sleeve of this utility model.

[0034] In the diagram: 1. Horizontal track; 2. Rack; 3. Gear; 4. Servo motor; 5. Vertical track; 6. Slide; 7. Scanner; 8. Base; 9. Column; 10. Fixing frame; 11. Suction cup; 12. Extension track; 13. Limiting seat; 14. Rotating column; 15. Threaded column; 16. Limiting component; 17. Support component; 18. Support sleeve; 19. Limiting sleeve; 20. Threaded pin; 21. Washer ring; 22. Positioning block; 23. Fixing component; 24. Fixing sleeve; 25. Pin; 26. Threaded sleeve. Detailed Implementation

[0035] 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.

[0036] Please see Figures 1-9 The present invention provides a technical solution: an automatic flaw detection device for wind turbine blade maintenance, comprising a horizontal track 1, a rack 2 and a gear 3. The rack 2 is fixedly connected to one side of the outer wall of the horizontal track 1, and the gear 3 is meshed with the outer wall of the rack 2. Mounting seats are rotatably connected to both sides of the outer wall of the gear 3, and a servo motor 4 is fixedly connected to one side of the outer wall of the mounting seat. The output end of the servo motor 4 is connected to the gear 3. A vertical track 5 is provided below the horizontal track 1, and the outer wall of the vertical track 5 is fixedly connected to the mounting seat. A slide block 6 is slidably connected to the outer wall of the vertical track 5, and a scanner 7 is provided on one side of the outer wall of the slide block 6. A phased array probe is installed inside the scanner 7. Bases 8 are connected to both sides of the bottom end of the horizontal track 1, and a column 9 is connected to the bottom end of the outer wall of the base 8. A fixing frame 10 is installed at the bottom end of the column 9, and a suction cup 11 with equal included angle is connected inside the bottom end of the fixing frame 10.

[0037] The vertical track 5 has extension tracks 12 connected to both sides of its outer wall, and a limiting seat 13 is fixedly connected to one side of the outer wall of the extension track 12. A rotating column 14 is rotatably connected inside the extension track 12, and a threaded column 15 is threadedly connected inside the limiting seat 13. The outer wall of the rotating column 14 is welded to the threaded column 15. The threaded column 15 is used to fix the vertical track 5 and the vertical track 5, thereby completing the extension of the vertical track 5. Limiting grooves and threaded holes are opened on both sides inside the vertical track 5. The limiting seat 13 can extend into the limiting groove, and the threaded column 15 can extend into the threaded hole.

[0038] For specific implementation, please refer to Figure 1 and Figure 2 First, move the automatic flaw detection equipment to the vicinity of the wind turbine blade. Then, move the column 9 to drive the bottom of the fixing frame 10 to move until the suction cup 11 at the bottom of the fixing frame 10 is in contact with the outer wall of the wind turbine blade. Then, vacuum the suction cup 11 so that the column 9 is fixed on the outside of the wind turbine blade. At this time, the horizontal track 1 and the vertical track 5 are also set on the outside of the wind turbine blade.

[0039] Next, the slide block 6 moves vertically along the vertical track 5, which in turn causes the scanner 7 to move vertically. The servo motor 4 is then started to drive the gear 3 to rotate. At this time, the gear 3 will rotate along the rack 2, which in turn causes the vertical track 5 to move horizontally along the horizontal track 1. At this time, the scanner 7 will also move horizontally. The range of movement of the scanner 7 is the area of ​​the wind turbine blade that is detected by the scanner 7.

[0040] Meanwhile, the scanner 7 emits ultrasonic waves during detection, and the scanner 7 is equipped with a phased array probe. By precisely controlling the time delay of ultrasonic wave emission from each chip, the deflection, focusing, and scanning of the sound beam can be achieved, and an area can be scanned without moving the probe itself. In addition, the jet of water forms a stable water film between the probe and the blade, which serves as a medium for transmitting ultrasonic waves, thereby ensuring that ultrasonic waves can be effectively transmitted into the interior of the blade.

[0041] The system then receives weak ultrasonic signals returning from inside the blade, amplifies and filters them, and the remote terminal converts the analog ultrasonic signals into high-precision digital signals. The algorithm reconstructs a three-dimensional volume map of the detection area. The measuring tool then automatically identifies and marks defects, calculates their size, area and depth, and automatically generates a detection report containing a three-dimensional image, a defect list and evaluation results, thus completing the flaw detection of that area of ​​the wind turbine blade. Afterward, the flaw detection equipment is moved again and the above operation is repeated to complete the flaw detection of the entire wind turbine blade.

[0042] When it is necessary to extend the stroke of the vertical rail 5 to increase the scanning range of the scanner 7, first move the extension rail 12 so that the limiting seat 13 is inserted into the vertical rail 5. At this time, the limiting seat 13 and the vertical rail 5 are engaged. Then, rotate the rotating column 14 to drive the threaded column 15 to rotate, so that the threaded column 15 moves out from the limiting seat 13 and is inserted into the vertical rail 5. Then, the extension rail 12 is limited and fixed on the outside of the vertical rail 5, increasing the stroke of the slide 6 vertical movement, thereby expanding the scanning range of the scanner 7 without moving the flaw detection equipment.

[0043] Furthermore, depending on the actual needs on site, users can choose to fix two sets of extension rails 12 or one set of extension rails 12. The extension rails 12 can be disassembled simply by rotating the rotating column 14 so that the threaded column 15 moves into the limiting seat 13. This allows users to flexibly adjust the vertical movement of the scanner 7 according to the actual needs on site, improving the flexibility of the flaw detection equipment and reducing the number of times the main guide rail needs to be moved and positioned, thereby improving the detection efficiency.

[0044] See Figure 3 , Figure 6 and Figure 7 A limiting component 16 is welded to the middle of the outer wall of the slide block 6, and the limiting component 16 has an "L" shaped structure. The bottom end of the limiting component 16 is connected to a limiting sleeve 19, and one side of the outer wall of the limiting sleeve 19 is fixedly connected to the scanner 7. A support component 17 is welded to the middle of the outer wall of the limiting component 16, and one side of the outer wall of the support component 17 is connected to a support sleeve 18, and one side of the outer wall of the support sleeve 18 is fixedly connected to the scanner 7. The limiting sleeve 19 has a "U" shaped cross section, and a threaded pin 20 is threadedly connected through the middle of the limiting sleeve 19. The threaded pin 20 is threadedly connected to the limiting component 16, and a washer 21 is threadedly connected to the bottom end of the limiting component 16.

[0045] In practice, the scanner 7 is moved to move the limiting sleeve 19 until the limiting member 16 on the outside of the slide block 6 is inserted into the limiting sleeve 19. At this time, the support member 17 is inserted into the support sleeve 18 to provide auxiliary support for the scanner 7. Then, the threaded pin 20 is rotated to pass through the limiting sleeve 19 and the limiting member 16, and the washer 21 is rotated upward along the threaded pin 20 until the washer 21 is in contact with the outer wall of the limiting sleeve 19, thus completing the installation of the scanner 7.

[0046] Subsequently, simply rotate the washer ring 21 downwards to disengage it from the threaded pin 20, then rotate the threaded pin 20 upwards to disengage it from the limiting sleeve 19, and then move the scanner 7 horizontally to disengage the limiting sleeve 19 from the limiting component 16. This modular design of the scanner 7 allows users to quickly replace probes or components with different functions to meet different testing needs.

[0047] See Figure 2 , Figure 8 and Figure 9 A positioning block 22 is welded to the top center of the base 8, and the positioning block 22 can extend into the interior of the transverse track 1. A fixing member 23 is connected through the interior of the transverse track 1, and the fixing member 23 is slidably connected to the transverse track 1. The transverse track 1 and the column 9 have an "I" shaped structure. A fixing sleeve 24 is connected to one side of the outer wall of the fixing member 23, and the middle of the outer wall of the fixing sleeve 24 is welded to the outer wall of the transverse track 1. A pin 25 is slidably connected inside the fixing sleeve 24, and a threaded groove is opened on one side of the outer wall of the pin 25. A threaded sleeve 26 is threadedly connected to the outer wall of the threaded groove.

[0048] In practical implementation, when assembling the rigid guide rail, first move the transverse rail 1 so that the positioning block 22 at the top of the base 8 is inserted into the transverse rail 1. Then move the fixing part 23 through the transverse rail 1, the positioning block 22 and the fixing sleeve 24 to limit the transverse rail 1 and prevent it from moving arbitrarily. Then move the pin 25 through the fixing part 23 and the fixing sleeve 24. Then bring the threaded sleeve 26 into contact with the pin 25 and rotate the threaded sleeve 26 along the pin 25 so that it fits against the outer wall of the fixing sleeve 24. Then reinforce the transverse rail 1 to complete its assembly. This also makes it convenient for users to disassemble the transverse rail 1, thus facilitating the quick assembly and disassembly of the flaw detection equipment. Furthermore, the segmented design makes it convenient for people to transport the flaw detection equipment.

[0049] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An automatic flaw detection apparatus for wind turbine blade maintenance, comprising a transverse rail (1), a rack (2) and a gear (3), wherein a side of the outer wall of the transverse rail (1) is fixedly connected with the rack (2), the outer wall of the rack (2) is in meshed connection with the gear (3), two sides of the outer wall of the gear (3) are rotatably connected with a mounting base, a side of the outer wall of the mounting base is fixedly connected with a servo motor (4), the output end of the servo motor (4) is connected with the gear (3), a vertical rail (5) is arranged below the transverse rail (1), the outer wall of the vertical rail (5) is fixedly connected with the mounting base, the apparatus being characterized in that: A sliding seat (6) is slidably connected to the outer wall of the vertical rail (5), a scanner (7) is arranged on a side of the outer wall of the sliding seat (6), a phased array probe is mounted inside the scanner (7), two sides of the bottom end of the transverse rail (1) are connected with bases (8), the bottom end of the outer wall of each base (8) is connected with a stand column (9), a fixing frame (10) is mounted at the bottom end of the stand column (9), and suction cups (11) with equal included angles are connected to the inside of the bottom end of the fixing frame (10); Extension rails (12) are connected to two sides of the outer wall of the vertical rail (5), a limiting seat (13) is fixedly connected to a side of the outer wall of each extension rail (12), a rotating column (14) is rotatably connected to the inside of each extension rail (12), a threaded column (15) is threadedly connected to the inside of each limiting seat (13), a side of the outer wall of the rotating column (14) is welded to the threaded column (15), and the threaded column (15) is used for fixing the vertical rail (5) and another vertical rail (5), so as to complete the extension of the vertical rail (5).

2. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 1, characterized in that: Limiting grooves and threaded holes are formed in two sides of the interior of the vertical rail (5), the limiting seat (13) can extend into the limiting groove, and the threaded column (15) can extend into the threaded hole.

3. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 2, characterized in that: A limiting member (16) is welded to the middle of the outer wall of the sliding seat (6), the limiting member (16) is of an L-shaped structure, the bottom end of the limiting member (16) is connected with a limiting sleeve (19), and a side of the outer wall of the limiting sleeve (19) is fixedly connected with the scanner (7).

4. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 3, characterized in that: A supporting member (17) is welded to the middle of the outer wall of the limiting member (16), a side of the outer wall of the supporting member (17) is connected with a supporting sleeve (18), and a side of the outer wall of the supporting sleeve (18) is fixedly connected with the scanner (7).

5. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 4, characterized in that: The limiting sleeve (19) is of a square-shaped structure in cross section, a threaded pin (20) penetrates through and is connected to the middle of the limiting sleeve (19), the threaded pin (20) is in threaded connection with the limiting member (16), and the bottom end of the limiting member (16) is threadedly connected with a gasket ring (21).

6. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 1, characterized in that: A positioning block (22) is welded to the middle of the top end of the base (8), the positioning block (22) can extend into the transverse rail (1), a fixing member (23) penetrates through and is connected to the interior of the transverse rail (1), and the fixing member (23) is in sliding connection with the transverse rail (1).

7. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 6, characterized in that: The transverse rail (1) and the stand column (9) are of I-shaped structure, a side of the outer wall of the fixing member (23) is connected with a fixing sleeve (24), and the middle of the outer wall of the fixing sleeve (24) is welded to the outer wall of the transverse rail (1).

8. The automatic flaw detection equipment for wind turbine blade maintenance according to claim 7, characterized in that: The fixed sleeve (24) is internally slidably connected to a pin (25), and a threaded groove is provided on one side of the outer wall of the pin (25), and a threaded sleeve (26) is threadedly connected to the outer wall of the threaded groove.

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