A self-checking device and method based on safe production of wind turbine blades

Abstract

The application discloses a self-checking device and method based on safe production of wind turbine blades, relates to the technical field of wind power generation, and comprises a base, double-end clamping mechanisms for turning and positioning the blades are installed on the top surfaces of the two ends of the base, grooves are formed on the front and back sides of the base, movable supports are slidably installed in the grooves, a scraping cleaning mechanism is installed on the mounting plate, and a piston cleaning mechanism is installed in the middle of the movable support. The application integrates multifunctional mechanisms such as double-end clamping, movable cleaning, pneumatic dust prevention, visual detection and dirt collection, effectively solves the core problems of dust and debris on the surface of the wind turbine blade interfering with defect detection and the dust easily adhering to the detection instrument to cause the core problem of the decline of the recording clarity, realizes integrated operation of blade clamping, angle adjustment, cleaning, detection and dirt treatment, improves the detection precision and efficiency, and the mechanism is adapted to the curved surface of the blade and takes into account the operation stability and maintenance convenience.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, specifically to a self-inspection device and method for the safe production of wind turbine blades. Background Technology

[0002] As a core pillar of the clean energy sector, wind power plays a vital role in the global energy structure transformation due to its renewable and low-pollution advantages. As the core component for capturing wind energy, the structural integrity, dimensional accuracy, and material properties of wind turbine blades directly determine the power generation efficiency, operational stability, and service life of the unit. With the development of wind power equipment towards larger and higher altitudes, the length of a single blade has exceeded 100 meters, and the composite material molding process used is becoming increasingly complex. Quality defects may lead to serious accidents such as cracking and breakage of the blades during service. Therefore, it is necessary to use self-inspection devices to automatically detect wind turbine blades during the safe production process.

[0003] However, the existing self-inspection devices for the safe production of wind turbine blades still have certain defects in use; A detection system for detecting defects in wind turbine blades, as proposed in application number CN202311219187.X, includes a base with blade defect detection devices on both sides of the base and several sets of blade fixing devices between them. By using the blade fixing devices to secure the wind turbine blades, and then using the blade defect detection devices to detect the blades, the system effectively solves the technical problem of existing wind turbine blade defect detection devices, which require contact with the blade surface during detection. Improper operation can easily damage the blade surface, causing unnecessary economic losses. However, in practical use, the following problems still exist: During the inspection of generator blades using this inspection system, dust and debris can easily accumulate on the surface of the generator blades due to the transportation and storage environment. This dust and debris can affect the detection of surface defects, thereby reducing the accuracy of the inspection. When using visual inspection instruments to automatically detect surface defects on wind turbine blades, dust in the inspection environment can easily adhere to the surface of the instrument, affecting the clarity of the recording and further reducing the inspection accuracy.

[0004] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0005] To address the aforementioned issues, an innovative design was developed based on the existing self-inspection device for the safe production of wind turbine blades. Summary of the Invention

[0006] The purpose of this invention is to provide a self-inspection device and method for the safe production of wind turbine blades, in order to solve the problems mentioned in the background art, such as the dust and debris accumulated on the surface of the generator blades due to transportation and storage environments interfering with the detection of surface defects, and the dust in the detection environment easily adhering to visual inspection instruments, affecting the clarity of the recording, and thus reducing the detection accuracy.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a self-inspection device for safe production of wind turbine blades, comprising a base, wherein a double-end clamping mechanism for blade steering and positioning is installed on the top surfaces of both ends of the base; The base has sliding grooves on its front and rear sides. A movable bracket is slidably installed inside the sliding groove. A slide block is fixedly installed at the bottom of the movable bracket. A drive screw is threaded through the center of the slide block. A servo motor is connected to the right end of the drive screw. The servo motor is fixedly connected to the right end of the base. A lifting cylinder is fixedly installed on the rear side of the movable bracket. A mounting plate is fixedly connected to the top of the lifting cylinder. The mounting plate is equipped with a scraping and cleaning mechanism; A piston cleaning mechanism is installed in the middle of the movable support; An installation module is fixedly installed on the top surface of the mounting plate. A vision detector is installed on the left end of the installation module. A light shield is installed on the outer ring of the vision detector. A pneumatic dustproof mechanism is installed inside the light shield. A collection box is provided at the top front end of the movable bracket.

[0008] Preferably, the double-end clamping mechanism includes a right positioning seat fixedly installed on the top surface of the right end of the base. A rotating seat is rotatably installed inside the right positioning seat. A driven gear ring is fixedly sleeved on the outer ring of the right end of the rotating seat. A steering motor is fixedly installed on the bottom right side of the right positioning seat. A drive gear that drives the driven gear ring to mesh and rotate is installed on the shaft end of the steering motor. A base is fixedly installed on the left side of the rotating seat. Adjusting screws are threaded through both ends of the base. A clamping seat is rotatably connected to the top end of the adjusting screw. Anti-slip washers are installed on the clamping surfaces of the clamping seat and the base.

[0009] Preferably, the double-end clamping mechanism further includes a left positioning seat fixedly installed on the top surface of the left end of the base. A lifting frame is slidably connected to the top of the left positioning seat. A support cylinder is installed on the left positioning seat. The top end of the support cylinder is fixedly connected to the lifting frame. A support plate is fixedly installed on the top surface of the right end of the lifting frame.

[0010] The above technical solution enables double-end positioning and clamping of the blade. By adjusting the screw to drive the clamping seat to rise and fall, it can adapt to the blade rotation requirements. The anti-slip washer can prevent damage to the blade surface during clamping. At the same time, the steering motor drives the rotating seat to rotate through gear meshing, which can adjust the blade detection angle. Combined with the lifting support plate of the left positioning seat, it can improve the clamping stability and detection flexibility.

[0011] Preferably, rollers are installed at the bottom of the front and rear ends of the movable bracket, and limit rods are symmetrically installed at the rear end of the mounting plate. The limit rods are slidably connected to the top of the slide block.

[0012] By adopting the above technical solution, the rollers can reduce the sliding friction between the movable bracket and the slide, making the movable bracket move more smoothly under the drive screw. The limit rod can guide and limit the lifting and lowering movement of the mounting plate, preventing the mounting plate from deviating during lifting and lowering, and improving the operating accuracy of the cleaning and inspection mechanism.

[0013] Preferably, the scraping cleaning mechanism includes mounting seats symmetrically mounted on the mounting plate. The bottom surface of the mounting seat is fixedly connected to a mounting frame. The mounting frame is provided in two sets. Limiting grooves are opened at the bottom of both ends of the mounting frame. Fixing rods are symmetrically mounted inside the limiting grooves. Sliding buckles are slidably sleeved on the outer ring of the fixing rods. Springs are sleeved on the outer ring of the fixing rods at the top of the sliding buckles. The sliding buckles and the limiting grooves form a telescopic structure through the springs. The scraping cleaning mechanism also includes a flexible scraper strip disposed between the sliding buckles inside the mounting bracket in the same group. There are two sets of flexible scraper strips. The flexible scraper strips can fit tightly against the blade detection surface. The two ends of the flexible scraper strips are fixedly connected with Velcro buckles, which are connected to the sliding buckles.

[0014] Using the above technical solution, the elastic force of the spring can push the sliding buckle to drive the flexible scraper to stick tightly to the blade surface, adapting to the complex curved surface of the blade and ensuring the scraping and cleaning effect. The two sets of flexible scrapers can efficiently scrape off dust and debris from the blade surface. The Velcro buckle makes it easy to disassemble and replace the flexible scraper, reducing maintenance costs.

[0015] Preferably, the piston cleaning mechanism includes a sealed box fixedly installed in the middle of the movable bracket, an active screw is rotatably installed inside the sealed box, a piston plate is sleeved on the outer ring of the active screw, the piston plate is slidably connected to the inner wall of the sealed box, a driven gear is fixedly installed at the bottom end of the active screw, and a fixed rack is fixedly installed on the top surface of the base, the fixed rack meshing with the driven gear; The piston cleaning mechanism also includes a one-way valve one and a one-way valve two symmetrically installed at the bottom of the sealed box. The inlet end of the one-way valve one is fixedly connected to an inlet pipe, and the outlet end of the one-way valve two is fixedly connected to an outlet pipe. The top end of the outlet pipe is connected to a spray head, which is fixedly connected to the mounting plate through it. The spray position of the spray head is located between the two sets of flexible scrapers.

[0016] Using the above technical solution, when the movable bracket moves, the driven gear meshes with the fixed rack to drive the active screw to rotate, which in turn drives the piston plate to slide in the sealed box. The water suction and spraying actions are achieved through the cooperation of one-way valve one and one-way valve two. The water spray head sprays water to wet the blade surface, and the flexible scraper improves the cleaning effect. No additional power is required, which is energy-saving, environmentally friendly and has high cleaning efficiency. When moving from left to right, the detection is performed and the water spraying action is achieved. When the detection on one side is completed, the movement from right to left is used to reset and achieve the water pumping action. This completes a single detection.

[0017] Preferably, the pneumatic dustproof mechanism includes dust collection heads symmetrically embedded inside the light shield. A collection pipe is fixedly connected to the top surface of the dust collection head. A filter pipe is fixedly installed on the left side of the sealed box. A filter screen is embedded inside the filter pipe. A dust inlet pipe is installed on the top of the filter pipe and connected to the collection pipe. A connecting pipe is installed between the right end of the filter pipe and the top of the sealed box. A dust collection bag is tied to the left end of the filter pipe.

[0018] Using the above technical solution, when moving from left to right for detection, the piston plate slides downward to create negative pressure in the upper part of the sealed box. This negative pressure is transmitted to the dust suction head through the connecting pipe, filter pipe, dust inlet pipe, and collection pipe, thus adsorbing dust in the light shield and preventing dust from adhering to the visual detector and affecting the clarity of the recording. When resetting from right to left, the piston plate slides upward to compress the air in the upper part of the sealed box and sends it into the filter pipe through the connecting pipe. The dust attached to the filter screen is then transported into the dust collection bag for collection, facilitating subsequent cleaning and improving detection accuracy.

[0019] Preferably, the collection box is fixedly connected to the top front end of the movable bracket.

[0020] Using the above technical solution, the collection box can collect sewage, dust and debris after cleaning in a centralized manner, avoiding secondary pollution caused by the scattering of dirt and keeping the testing environment clean. At the same time, it moves synchronously with the movable support to ensure comprehensive collection range.

[0021] Preferably, a sliding plate is fixedly installed on the bottom surface of the collection box, a pull rod is fixedly installed on the front end of the sliding plate, a track groove is opened on the top surface of the front end of the movable bracket, the sliding plate is slidably connected to the track groove, a fixing block is fixedly installed on the front side of the movable bracket, a positioning bolt passes through the front end of the sliding plate, and the positioning bolt is threadedly connected to the fixing block.

[0022] Using the above technical solution, the sliding plate can be pulled by the pull rod to drive the collection box to slide out along the track groove, which facilitates the cleaning of the collected dirt. The positioning bolts can stably fix the collection box on the movable bracket to prevent it from shifting during the operation of the device, thus improving the convenience and stability of use.

[0023] A method for a self-inspection device based on the safe production of wind turbine blades involves cleaning the surface of wind turbine blades with different curvatures by setting up a cleaning device that fits the plane of wind turbine blades with different curvatures before inspection.

[0024] Compared with existing technologies, the beneficial effects of this invention are as follows: This self-inspection device for safe production of wind turbine blades effectively solves the core problems of dust and debris interference in defect detection on the surface of wind turbine blades and the reduction in image clarity due to dust adhesion to the testing instruments by integrating multi-functional mechanisms such as double-end clamping, mobile cleaning, pneumatic dust prevention, visual inspection, and dirt collection. It achieves integrated operation of blade clamping, angle adjustment, cleaning, inspection, and dirt treatment, improving inspection accuracy and efficiency. The mechanism is adapted to the curved surface of the blade, balancing operational stability and ease of maintenance, reducing labor costs, and avoiding the drawbacks of traditional inspection methods, providing a reliable guarantee for safe blade production. Specific details are as follows: The dual-end clamping mechanism combines adaptability and protection. The right positioning seat drives the clamping seat to rise and fall through the adjustment screw, and with the anti-slip washer, it can firmly clamp the blade and avoid surface damage. The left positioning seat lifting plate forms a dual-end support to improve clamping stability. The steering motor drives the blade to rotate through gear meshing, which can flexibly adjust the detection angle to eliminate blind spots. The dual-end coordinated clamping can also reduce blade sway, provide a stable foundation for subsequent cleaning and detection, and indirectly improve detection accuracy. The scraping cleaning mechanism is highly adaptable and cleans thoroughly. The sliding buckle drives the flexible scraper to closely adhere to the complex curved surface of the blade via a spring. The two sets of scrapers work together to efficiently remove dust and debris, eliminating detection interference. The flexible scraper is connected with Velcro, which can be quickly disassembled and replaced, simplifying the maintenance process, reducing maintenance costs and downtime. In addition, the two sets of scrapers can also limit the spread of cleaning water, making it easier for the collection box to collect it. The piston cleaning mechanism requires no additional power. It uses the movement of the bracket to drive the piston plate to slide, and achieves water suction and spraying through a one-way valve. It is energy-saving, environmentally friendly and has a simplified structure. The spray head and scraper work together to wet the blades and improve the cleaning effect. The movement of the device and the cleaning action are linked to form a complete cycle, which greatly improves the work efficiency. The pneumatic dustproof mechanism can prevent instrument contamination. It uses piston negative pressure to adsorb dust inside the light shield and prevents dust from sticking to the lens. Together with the light shield, it creates a clean testing environment and improves testing accuracy. When resetting, compressed air blows the dust into the dust collection bag for centralized collection, avoiding secondary pollution. The dust collection bag is easy to disassemble, reducing maintenance difficulty. The collection box moves synchronously with the bracket to collect clean waste, avoid secondary pollution, and keep the site clean. It is connected to the track groove by a sliding plate and fixed with positioning bolts. It is easy to disassemble and clean and operates stably, improving the efficiency of waste treatment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external structure from one side of an embodiment of the present invention; Figure 2 This is a side view of the double-ended clamping mechanism of the present invention. Figure 3 This is a schematic diagram showing the distribution structure of the movable support, scraping cleaning mechanism, and piston cleaning mechanism of the present invention; Figure 4 This is a schematic diagram of the side sectional structure of the base of the present invention; Figure 5 This is a schematic diagram of the connection structure between the movable support and the scraping cleaning mechanism of the present invention; Figure 6 This is a side sectional view of the scraping cleaning mechanism of the present invention; Figure 7 This is a schematic diagram of the connection structure between the piston cleaning mechanism and the pneumatic dust prevention mechanism of the present invention; Figure 8 This is a side sectional view of the piston cleaning mechanism of the present invention; Figure 9 This is a schematic diagram of the connection structure between the visual detector and the pneumatic dustproof mechanism of the present invention; Figure 10 This is a side sectional view of the pneumatic dustproof mechanism of the present invention; Figure 11 This is an exploded structural diagram of the collection box and movable support in Embodiment 2 of the present invention.

[0026] In the diagram: 1. Base; 2. Right positioning seat; 3. Rotary seat; 4. Driven gear ring; 5. Steering motor; 6. Base support; 7. Adjusting screw; 8. Clamping seat; 9. Anti-slip washer; 10. Left positioning seat; 11. Lifting frame; 12. Support cylinder; 13. Support plate; 14. Slide groove; 15. Movable bracket; 16. Slide seat; 17. Drive screw; 18. Servo motor; 19. Roller; 20. Lifting cylinder; 21. Mounting plate; 22. Limiting rod; 23. Mounting seat; 24. Mounting frame; 25. Limiting groove; 26. Fixing rod; 27. Sliding buckle; 28. Spring; 29. ​​Flexible scraper 30. Velcro fastener; 31. Sealing box; 32. Driving screw; 33. Piston plate; 34. Driven gear; 35. Fixed rack; 36. One-way valve 1; 37. Water inlet pipe; 38. One-way valve 2; 39. Water outlet pipe; 40. Spray head; 41. Mounting module; 42. Vision detector; 43. Sunshade; 44. Dust suction head; 45. Manifold; 46. Filter pipe; 47. Filter screen; 48. Dust inlet pipe; 49. Connecting pipe; 50. Dust collection bag; 51. Collection box; 52. Slide plate; 53. Pull rod; 54. Track groove; 55. Fixing block; 56. Positioning bolt. Detailed Implementation

[0027] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1-10 This invention provides a technical solution: a self-inspection device for the safe production of wind turbine blades, comprising a base 1, with double-end clamping mechanisms for blade steering and positioning installed on the top surfaces of both ends of the base 1. Each double-end clamping mechanism includes a right positioning seat 2 fixedly installed on the top surface of the right end of the base 1. A rotating seat 3 is rotatably mounted inside the right positioning seat 2. A driven gear ring 4 is fixedly sleeved on the outer ring of the right end of the rotating seat 3. A steering motor 5 is fixedly installed on the bottom right side of the right positioning seat 2. A drive gear for driving the driven gear ring 4 to mesh and rotate is installed on the shaft end of the steering motor 5. A base 6 is fixedly installed on the left side of the rotating base 3. An adjusting screw 7 is threaded through both ends of the base 6. A clamping seat 8 is rotatably connected to the top of the adjusting screw 7. Anti-slip washers 9 are installed on the clamping surfaces of the clamping seat 8 and the base 6. The double-end clamping mechanism also includes a left positioning seat 10 fixedly installed on the top surface of the left end of the base 1. A lifting frame 11 is slidably connected to the top of the left positioning seat 10. A support cylinder 12 is installed on the left positioning seat 10. The top of the support cylinder 12 is fixedly connected to the lifting frame 11. A support plate 13 is fixedly installed on the top surface of the right end of the lifting frame 11. The above structure design first performs adaptation and adjustment before blade placement. The left positioning seat 10 drives the lifting frame 11, which is slidably connected to the top of the left positioning seat 10, to move up and down through the extension and retraction of the support cylinder 12. This causes the support plate 13, which is fixed to the top right end of the lifting frame 11, to move up and down synchronously, so that the height of the support plate 13 matches the support requirements of the left end of the blade to be tested. The right positioning seat 2 rotates the adjusting screw 7 manually or with the help of the screw. The screw 7 is threaded with the bottom support 6 at both ends, which drives the clamping seat 8, which is rotatably connected to the top end, to move up and down in the vertical direction, leaving space for the right end of the blade. At this time, the anti-slip pads 9 installed on the clamping surfaces of the clamping seat 8 and the bottom support 6 are separated to avoid scratching the blade surface during subsequent clamping. The blade is then positioned and clamped. The blade to be tested is placed stably on the support plate 13 of the left positioning seat 10 and the base 6 of the right positioning seat 2, so that both ends of the blade are stably supported. Then, the adjusting screw 7 of the right positioning seat 2 is rotated again to drive the clamping seat 8 to move downward until the clamping seat 8 and the base 6 cooperate to clamp the right end of the blade. The anti-slip washer 9 is squeezed and closely adheres to the blade surface, which not only increases the clamping friction to prevent the blade from slipping, but also avoids damage to the blade surface through flexible contact. At the same time, the support plate 13 of the left positioning seat 10 continues to provide support for the left end of the blade, forming a double-end cooperative positioning with the right end clamping structure to ensure that the blade is placed stably without shaking. When the blade needs to be flipped after one-sided inspection, the external controller first controls the support cylinder 12 to lower the lifting frame 11 to release the support on the blade. Then, the external controller starts the steering motor 5 fixed on the right side of the bottom of the right positioning seat 2. The drive gear installed on the shaft end of the steering motor 5 rotates accordingly. Through the meshing of the driven gear ring 4 fixedly sleeved with the outer ring of the right end of the rotating seat 3, the rotating seat 3 is driven to rotate inside the right positioning seat 2. Since the right end of the blade is clamped and fixed between the bottom support 6 and the clamping seat 8 of the rotating seat 3, the rotating seat 3 rotates synchronously and drives the blade to rotate as a whole until the blade is adjusted to the target inspection angle. Then the steering motor 5 is turned off to complete the angle positioning. This provides the adaptation conditions for the subsequent cleaning and inspection mechanism to operate on different surfaces of the blade, ensuring the comprehensiveness and accuracy of the inspection.

[0029] The base 1 has sliding grooves 14 on both the front and rear sides. A movable bracket 15 is slidably installed inside the sliding grooves 14. A slide block 16 is fixedly installed at the bottom of the movable bracket 15. A drive screw 17 is threaded through the center of the slide block 16. A servo motor 18 is connected to the right end of the drive screw 17. The servo motor 18 is fixedly connected to the right end of the base 1. Rollers 19 are installed at the bottom of the front and rear ends of the movable bracket 15. A lifting cylinder 20 is fixedly installed on the rear side of the movable bracket 15. A mounting plate 21 is fixedly connected to the top of the lifting cylinder 20. Limit rods 22 are symmetrically installed at the rear end of the mounting plate 21. The limit rods 22 are slidably connected to the top of the slide block 16. The above structure is designed so that the servo motor 18, which is fixedly connected to the right end of the base 1, is started by an external controller. The output shaft of the servo motor 18 drives the drive screw 17 to rotate synchronously. Since the drive screw 17 and the slide 16 fixedly installed at the bottom of the movable bracket 15 are threaded together, the rotating drive screw 17 is converted into a horizontal driving force through the thread transmission. This drives the slide 16 and the movable bracket 15 fixed thereto to slide along the slide groove 14 opened on the front and rear sides of the base 1. At this time, the rollers 19 installed at the bottom of the front and rear ends of the movable bracket 15 roll in contact with the inner wall of the slide groove 14, converting the sliding friction into rolling friction. This effectively reduces the frictional resistance when the movable bracket 15 moves, so that the movable bracket 15 moves smoothly and at a constant speed under the drive of the drive screw 17. This allows the horizontal working position of the mounting plate 21 and the subsequent mounting mechanism to be adjusted to meet the working requirements of different blade length areas. When the height of the mounting plate 21 needs to be adjusted to fit the blade surface or for disassembly / reassembly requirements, the lifting cylinder 20 fixedly installed on the rear side of the movable bracket 15 is activated. The piston rod of the lifting cylinder 20 extends and retracts, causing the mounting plate 21 fixedly connected to the top to rise and fall synchronously. At the same time, the limiting rod 22 symmetrically installed at the rear end of the mounting plate 21 is slidably connected to the top of the slide block 16. The limiting rod 22 slides along the inside of the slide block 16 as the mounting plate 21 rises and falls, providing precise guidance and limiting for the lifting and lowering movement of the mounting plate 21. This prevents the mounting plate 21 from shifting left or right or swaying during the lifting and lowering process, ensuring that the mounting plate 21 always maintains stable lifting and lowering. This, in turn, ensures that the subsequent cleaning and inspection mechanisms can accurately align with the blade working surface, improving the overall operational accuracy and stability.

[0030] A scraping cleaning mechanism is installed on the mounting plate 21. The scraping cleaning mechanism includes mounting seats 23 symmetrically installed on the mounting plate 21. The bottom surface of the mounting seat 23 is fixedly connected to the mounting frame 24. The mounting frame 24 is provided in two sets. Limiting grooves 25 are opened at the bottom of both ends of the mounting frame 24. Fixing rods 26 are symmetrically installed inside the limiting grooves 25. Sliding buckles 27 are slidably sleeved on the outer ring of the fixing rods 26. Springs 28 are sleeved on the outer ring of the fixing rods 26 at the top of the sliding buckles 27. The sliding buckles 27 and the limiting grooves 25 form a telescopic structure through the springs 28. The scraping cleaning mechanism also includes flexible scraper strips 29 disposed between the sliding buckles 27 inside the same set of mounting frames 24. Two sets of flexible scraper strips 29 are provided. The flexible scraper strips 29 can closely adhere to the blade detection surface. Velcro buckles 30 are fixedly connected to both ends of the flexible scraper strips 29. The Velcro buckles 30 are connected to the sliding buckles 27. In the above-described structure, the scraping cleaning mechanism is fixedly assembled by mounting seats 23 symmetrically installed on the mounting plate 21. Two sets of mounting brackets 24 fixedly connected to the bottom surface of the mounting seat 23 provide a support carrier for the scraping component. Fixed rods 26 are symmetrically installed inside the limiting grooves 25 at both ends of each set of mounting brackets 24. The sliding buckles 27 slidably sleeved on the outer ring of the fixed rods 26 can slide up and down along the fixed rods 26. The springs 28 sleeved on the outer ring of the fixed rods 26 at the top of the sliding buckles 27 are in a natural extension and contraction state, so that the sliding buckles 27 form an elastic extension and contraction structure with the limiting grooves 25 through the springs 28. Flexible scraping strips 29 are connected between the sliding buckles 27 inside the same set of mounting brackets 24. With the help of the elastic force of the springs 28, the two sets of flexible scraping strips 29 always keep in close contact with the blade detection surface. Even when facing the complex curved surface of the blade, the springs 28 can also drive the sliding buckles 27 to slide along the fixed rods 26 through extension and contraction, so that the flexible scraping strips 29 can adaptively conform to the blade surface, ensuring that there are no dead angles in the scraping. When the movable bracket 15 moves the mounting plate 21 along the blade length direction, the two sets of flexible scrapers 29 simultaneously scrape the blade inspection surface, efficiently removing the dust and debris accumulated on the surface, clearing obstacles for subsequent visual inspection. In addition, the Velcro buckles 30 and sliding buckles 27 fixedly connected at both ends of the flexible scraper 29 are detachable. When the flexible scraper 29 is worn or seriously dirty, affecting the cleaning effect, it can be quickly removed and replaced through the Velcro buckles 30 without disassembling the entire mechanism, greatly improving the convenience of maintenance and reducing maintenance costs and downtime.

[0031] A piston cleaning mechanism is installed in the middle of the movable bracket 15. The piston cleaning mechanism includes a sealing box 31 fixedly installed in the middle of the movable bracket 15. An active screw 32 is rotatably installed inside the sealing box 31. A piston plate 33 is sleeved on the outer ring of the active screw 32. The piston plate 33 is slidably connected to the inner wall of the sealing box 31. A driven gear 34 is fixedly installed at the bottom end of the active screw 32. A fixed rack 35 is fixedly installed on the top surface of the base 1. The fixed rack 35 is meshed with the driven gear 34. The piston cleaning mechanism also includes a one-way valve 36 and a one-way valve 38 symmetrically installed at the bottom of the sealing box 31. A water inlet pipe 37 is fixedly connected to the water inlet end of the one-way valve 36. A water outlet pipe 39 is fixedly connected to the water outlet end of the one-way valve 38. A spray head 40 is connected to the top end of the water outlet pipe 39. The spray head 40 is fixedly connected to the mounting plate 21 through the pipe. The spray position of the spray head 40 is located between the two sets of flexible scrapers 29. In the above-described structure, when the servo motor 18 drives the movable bracket 15 to move along the slide groove 14, the driven gear 34 moves synchronously with the movable bracket 15 and simultaneously meshes with the fixed rack 35 to generate rotational power, driving the active screw 32 to rotate within the sealing box 31. The rotating active screw 32 drives the piston plate 33 to slide up and down along the inner wall of the sealing box 31 through threaded transmission, thereby changing the air pressure inside the cavity at the bottom of the sealing box 31. The one-way valve 36 and one-way valve 38, symmetrically installed at the bottom of the sealing box 31, control the intake and discharge of liquid, respectively. The inlet end of the one-way valve 36 is fixedly connected to the inlet pipe 37, which can be connected to an external water source. When the piston plate 33 moves upward, a negative pressure is formed in the bottom cavity of the sealing box 31. One-way valve 36 is opened and one-way valve 38 is closed. External water is drawn into the sealing box 31 through the inlet pipe 37 and one-way valve 36. When the piston plate 33 moves downward, the air pressure in the bottom cavity of the sealing box 31 increases. One-way valve 36 is closed and one-way valve 38 is opened. The water in the cavity is pressurized and flows into the outlet pipe 39 fixedly connected to the outlet end through one-way valve 38. Then it is sprayed out through the spray head 40 connected to the top of the outlet pipe 39. The spray head 40 is fixedly connected to the mounting plate 21. Its spray position is located between the two sets of flexible scraper blades 29. The sprayed water can pre-wet the dust and debris on the surface of the blades, so that the subsequent scraping and cleaning by the flexible scraper blades 29 is more thorough. It realizes the "spraying water-scraping" coordinated operation. No additional power source is required. The suction and spraying water cycle can be completed by relying on the movement of the movable bracket 15. It is energy-saving, environmentally friendly and has higher cleaning efficiency.

[0032] Mounting module 41 is fixedly mounted on the top surface of mounting plate 21. Vision detector 42 is mounted on the left end of mounting module 41. A light shield 43 is mounted on the outer ring of vision detector 42. A pneumatic dustproof mechanism is installed inside the light shield 43. The pneumatic dustproof mechanism includes a dust suction head 44 symmetrically embedded inside the light shield 43. A collection pipe 45 is fixedly connected to the top surface of the dust suction head 44. A filter pipe 46 is fixedly mounted on the left side of sealing box 31. A filter screen 47 is embedded inside the filter pipe 46. A dust inlet pipe 48 is installed on the top of filter pipe 46. The dust inlet pipe 48 is connected to the collection pipe 45. A connecting pipe 49 is installed between the right end of filter pipe 46 and the top of sealing box 31. A dust collection bag 50 is tied to the left end of filter pipe 46. A collection box 51 is provided at the top front end of movable bracket 15. The collection box 51 is fixedly connected to the top front end of movable bracket 15. In the above structure design, the visual inspection component is assembled and fixed by the mounting module 41 fixedly mounted on the top surface of the mounting plate 21. The visual detector 42 installed on the left end of the mounting module 41 is used to capture the surface image of the blade after cleaning to identify defects. The light shield 43 installed on the outer ring of the visual detector 42 can block external stray light to avoid light interference affecting the image clarity, and at the same time provide a mounting carrier for the pneumatic dustproof mechanism. The dust suction head 44 of the pneumatic dustproof mechanism is symmetrically embedded in the light shield 43. The collection pipe 45 fixedly connected to the top surface of the dust suction head 44 is connected to the dust inlet pipe 48 installed on the top of the filter pipe 46. The filter pipe 46 is fixedly installed on the left side of the sealed box 31. The filter screen 47 embedded inside it is used to filter dust. The right end of the filter pipe 46 is connected to the top of the sealed box 31 through the connecting pipe 49. The dust collection bag 50 tied at the left end is used to collect dust. When the piston plate 33 of the piston cleaning mechanism slides up and down, the air pressure in the top cavity of the sealing box 31 changes synchronously. When the piston plate 33 moves upward, a negative pressure is formed at the top of the sealing box 31, which is transmitted to the filter tube 46 through the connecting pipe 49, thereby causing the dust suction head 44 to generate suction, sucking in dust that may be adhering to the lens of the vision detector 42 or floating inside the light shield 43. The dust then enters the filter tube 46 through the collection pipe 45 and the dust inlet pipe 48, where it is filtered and trapped by the filter screen 47. When the piston plate 33 moves downward, the air pressure in the top cavity of the sealing box 31 increases, and compressed air is blown into the filter tube 46 through the connecting pipe 49, removing the excess air. Dust trapped on the filter 47 is blown into the dust storage bag 50 for storage, achieving dust prevention and centralized dust treatment, ensuring a clean recording environment for the vision detector 42. At the same time, the collection box 51, which is fixedly connected to the top front end of the movable bracket 15, moves synchronously with the movable bracket 15. After the scraping cleaning mechanism and the piston cleaning mechanism complete the cleaning of the blade surface, the generated sewage, dust and debris will fall into the collection box 51, avoiding the scattering of dirt and causing secondary pollution, and achieving synchronous collection of cleaning dirt. The whole system works with the vision detector 42 to complete the accurate detection of defects on the blade surface, improving detection accuracy and site cleanliness.

[0033] Example 2: Based on Example 1, the present invention adopts the following... Figure 11 The technical solution shown further discloses that a sliding plate 52 is fixedly installed on the bottom surface of the collection box 51, a pull rod 53 is fixedly installed on the front end of the sliding plate 52, a track groove 54 is opened on the top surface of the front end of the movable bracket 15, the sliding plate 52 is slidably connected to the track groove 54, a fixing block 55 is fixedly installed on the front side of the movable bracket 15, a positioning bolt 56 passes through the front end of the sliding plate 52, and the positioning bolt 56 is threadedly connected to the fixing block 55. Based on the design of the above structure, this embodiment optimizes the installation structure of the collection box 51, which mainly improves the convenience of cleaning up dirt and ensures the stability of the collection box 51 during operation. The collection box 51 is slidably connected to the track groove 54 opened on the front top surface of the movable support 15 via the slide plate 52 fixedly installed on the bottom surface, realizing the detachable assembly of the collection box 51 and the movable support 15. The pull rod 53 fixedly installed at the front end of the slide plate 52 provides a force carrier for the pulling of the collection box 51. During daily inspection operations, the collection box 51 moves synchronously with the movable support 15 to collect the sewage, dust and debris generated by the cleaning of the blades. At this time, by tightening the positioning bolt 56 that passes through the front end of the slide plate 52, the positioning bolt 56 is threadedly fastened to the fixing block 55 fixedly installed on the front side of the movable support 15, thereby locking the slide plate 52 in the track groove 54, preventing the collection box 51 from being displaced or slipped due to vibration and movement during the operation of the device, and ensuring the stability of collection. When the dirt inside the collection box 51 accumulates to the point where it needs to be cleaned, loosen the positioning bolt 56 to disengage it from the fixed block 55, thus releasing the lock on the slide plate 52. Then pull the lever 53 to move the slide plate 52 outward along the track groove 54, thereby pulling the collection box 51 out of the movable bracket 15 for quick cleaning of the internal dirt. After cleaning, align the slide plate 52 with the track groove 54 and push it in to return the collection box 51 to its initial working position. Then tighten the positioning bolt 56 and the threaded connection with the fixed block 55 to relock the collection box 51. The whole process is simple to operate and does not require disassembly of other parts, which greatly improves the cleaning efficiency and maintenance convenience of the collection box 51.

[0034] A method for a self-inspection device based on the safe production of wind turbine blades involves cleaning the surface of wind turbine blades with different curvatures by setting up a cleaning device that fits the plane of wind turbine blades with different curvatures before inspection.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-inspection device for safe production of wind turbine blades, comprising a base (1), characterized in that: The base (1) is equipped with a double-end clamping mechanism for steering and positioning the blades on the top surfaces of both ends; The base (1) has sliding grooves (14) on both the front and rear sides. A movable bracket (15) is slidably installed inside the sliding groove (14). A slide block (16) is fixedly installed at the bottom of the movable bracket (15). A drive screw (17) is threaded through the center of the slide block (16). A servo motor (18) is connected to the right end of the drive screw (17). The servo motor (18) is fixedly connected to the right end of the base (1). A lifting cylinder (20) is fixedly installed on the rear side of the movable bracket (15). A mounting plate (21) is fixedly connected to the top of the lifting cylinder (20). A scraping cleaning mechanism is installed on the mounting plate (21); A piston cleaning mechanism is installed in the middle of the movable support (15); The mounting plate (21) is fixedly mounted with a mounting module (41). A visual detector (42) is mounted on the left end of the mounting module (41). A light shield (43) is mounted on the outer ring of the visual detector (42). A pneumatic dustproof mechanism is installed inside the light shield (43). A collection box (51) is provided at the top front end of the movable bracket (15).

2. The self-inspection device for safe production of wind turbine blades according to claim 1, characterized in that: The double-end clamping mechanism includes a right positioning seat (2) fixedly installed on the top right side of the base (1). A rotating seat (3) is rotatably installed inside the right positioning seat (2). A driven gear ring (4) is fixedly sleeved on the outer right side of the rotating seat (3). A steering motor (5) is fixedly installed on the bottom right side of the right positioning seat (2). A drive gear that drives the driven gear ring (4) to mesh and rotate is installed on the shaft end of the steering motor (5). A base support (6) is fixedly installed on the left side of the rotating seat (3). An adjusting screw (7) is threaded through both ends of the base support (6). A clamping seat (8) is rotatably connected to the top end of the adjusting screw (7). Anti-slip washers (9) are installed on the clamping surfaces of the clamping seat (8) and the base support (6).

3. The self-inspection device for safe production of wind turbine blades according to claim 2, characterized in that: The double-end clamping mechanism also includes a left positioning seat (10) fixedly installed on the top surface of the left end of the base (1). The top of the left positioning seat (10) is slidably connected to a lifting frame (11). A support cylinder (12) is installed on the left positioning seat (10). The top of the support cylinder (12) is fixedly connected to the lifting frame (11). A support plate (13) is fixedly installed on the top surface of the right end of the lifting frame (11).

4. The self-inspection device for safe production of wind turbine blades according to claim 1, characterized in that: Rollers (19) are installed at the bottom of the front and rear ends of the movable bracket (15), and limit rods (22) are symmetrically installed at the rear end of the mounting plate (21). The limit rods (22) are slidably connected to the top of the slide block (16).

5. A self-inspection device for safe production of wind turbine blades according to claim 1, characterized in that: The scraping cleaning mechanism includes mounting seats (23) symmetrically mounted on mounting plate (21). The bottom surface of the mounting seat (23) is fixedly connected to the mounting frame (24). The mounting frame (24) is provided in two sets. Limiting grooves (25) are opened at the bottom of both ends of the mounting frame (24). Fixing rods (26) are symmetrically installed inside the limiting grooves (25). The outer ring of the fixing rod (26) is slidably fitted with a sliding buckle (27). The outer ring of the fixing rod (26) at the top of the sliding buckle (27) is fitted with a spring (28). The sliding buckle (27) and the limiting groove (25) form a telescopic structure through the spring (28). The scraping cleaning mechanism also includes a flexible scraper (29) disposed between the sliding buckles (27) inside the mounting bracket (24) of the same group. There are two sets of the flexible scraper (29). The flexible scraper (29) can fit tightly against the blade detection surface. The two ends of the flexible scraper (29) are fixedly connected with Velcro buckles (30), and the Velcro buckles (30) are connected to the sliding buckles (27).

6. A self-inspection device for safe production of wind turbine blades according to claim 5, characterized in that: The piston cleaning mechanism includes a sealed box (31) fixedly installed in the middle of the movable bracket (15). An active screw (32) is rotatably installed inside the sealed box (31). A piston plate (33) is sleeved on the outer ring of the active screw (32). The piston plate (33) is slidably connected to the inner wall of the sealed box (31). A driven gear (34) is fixedly installed at the bottom end of the active screw (32). A fixed rack (35) is fixedly installed on the top surface of the base (1). The fixed rack (35) meshes with the driven gear (34). The piston cleaning mechanism also includes a one-way valve (36) and a one-way valve (38) symmetrically installed at the bottom of the sealed box (31). The inlet end of the one-way valve (36) is fixedly connected to an inlet pipe (37), and the outlet end of the one-way valve (38) is fixedly connected to an outlet pipe (39). The top end of the outlet pipe (39) is connected to a spray head (40). The spray head (40) is fixedly connected to the mounting plate (21) through it. The spray position of the spray head (40) is located between the two sets of flexible scrapers (29).

7. A self-inspection device for safe production of wind turbine blades according to claim 6, characterized in that: The pneumatic dustproof mechanism includes a dust suction head (44) symmetrically embedded inside the light shield (43). The top surface of the dust suction head (44) is fixedly connected to a collection pipe (45). A filter pipe (46) is fixedly installed on the left side of the sealed box (31). A filter screen (47) is embedded inside the filter pipe (46). A dust inlet pipe (48) is installed on the top of the filter pipe (46). The dust inlet pipe (48) is connected to the collection pipe (45). A connecting pipe (49) is installed between the right end of the filter pipe (46) and the top of the sealed box (31). A dust collection bag (50) is tied to the left end of the filter pipe (46).

8. A self-inspection device for safe production of wind turbine blades according to claim 7, characterized in that: The collection box (51) is fixedly connected to the top front end of the movable bracket (15).

9. A self-inspection device for safe production of wind turbine blades according to claim 7, characterized in that: A sliding plate (52) is fixedly installed on the bottom surface of the collection box (51). A pull rod (53) is fixedly installed on the front end of the sliding plate (52). A track groove (54) is opened on the top surface of the front end of the movable bracket (15). The sliding plate (52) is slidably connected to the track groove (54). A fixing block (55) is fixedly installed on the front side of the movable bracket (15). A positioning bolt (56) passes through the front end of the sliding plate (52). The positioning bolt (56) is threadedly connected to the fixing block (55).

10. A method for a self-inspection device based on the safe production of wind turbine blades according to any one of claims 1-8, characterized in that: By setting up a cleaning device that fits the plane of wind turbine blades with different curvatures, the surface of wind turbine blades with different curvatures is cleaned before inspection.

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