Blade coating mechanism and wind power blade leading edge protection coating device using same

Abstract

The invention discloses a blade coating mechanism and a wind power blade front edge protection coating device using the same. The blade coating mechanism comprises a blade coating support and a plurality of blade coating gripper assemblies arranged on the blade coating support in the length direction of a wind power blade at intervals. Each blade coating gripper assembly comprises two gripper plates which are oppositely arranged to form a V-shaped accommodating area for accommodating the wind power blade, and a driving assembly for driving the two gripper plates to perform relative closing and opening movement; smooth scraping plates are arranged on the side end faces, facing the V-shaped containing area, of the two claw plates of at least one blade coating claw assembly, and tooth-shaped scraping plates with sawteeth are arranged on the side end faces, facing the V-shaped containing area, of the two claw plates of at least one blade coating claw assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade processing, and in particular to a scraping and coating mechanism and a wind turbine blade leading edge protective coating device using the same. Background Art

[0002] Wind turbine blade damage is inevitable during long-term operation. Wind turbine blades withstand intense wind loads and the impact of sand and gravel particles, leaving them susceptible to surface defects such as scratches, corrosion, and cracks. Wind turbine blades can be hundreds of feet long and weigh thousands of pounds. Not only do they operate at high altitudes, but many are located miles away, making access difficult and dangerous. Wind turbines are typically installed in windy and sandy environments. During rotation, the blade tips are subject to high linear velocities, exceeding 70 m / s at rated speed. This causes severe wear and tear on the leading edges of the blades from the sand, leading to cracking. Currently, effective preventative measures include applying protective paint to the leading edges of the blades, particularly at the tips.

[0003] Publication number CN117696352A discloses a robot for coating the leading edge of wind turbine blades. This robot applies protective paint to the leading edge of the blades by combining a detection device for detecting direct surface data of the working area, a loading device for applying paint to the bottom and both sides of the leading edge of the wind turbine blades, and a scraping device for evenly smoothing the paint applied by the loading device. While this robot improves coating efficiency and uniformity compared to manual operation, further research and testing revealed the following issues with the robot:

[0004] The scraping device disclosed in the aforementioned technology primarily comprises a scraping device mounting frame, a thrust spring, guide blocks at both ends of the scraping belt, a second universal ball bearing, a spring nesting cylinder, a U-shaped swinging inner frame, a tilt adjustment device, a scraping belt bottom end fixing device, the scraping belt, a second articulation device, an electric push rod, and a limit pin. While this scraping device can achieve the purpose of scraping, its overall structure is complex and its components are numerous, increasing production costs and also resulting in a high failure rate.

[0005] Therefore, in order to solve the problem of complicated scraping and coating structure of the existing wind turbine blade leading edge protection coating device, its overall structure needs to be further optimized. Summary of the Invention

[0006] The first object of the present invention is to provide a scraping mechanism to solve the technical problem of simplifying its overall structure.

[0007] A second object of the present invention is to provide a wind turbine blade leading edge protection coating device to solve the technical problem of balancing coating uniformity and structural simplicity.

[0008] The scraping mechanism of the present invention is achieved in this way:

[0009] A scraping mechanism, comprising at least:

[0010] A scraping bracket and a plurality of scraping claw assemblies arranged on the scraping bracket and spaced apart along the length direction of the wind turbine blade;

[0011] Each of the coating claw assemblies comprises two claw plates arranged relative to each other to form a V-shaped receiving area for accommodating a wind turbine blade, and a driving assembly for driving the two claw plates to move relative to each other; and

[0012] At least one of the two claw plates of the scraping hand claw assembly facing the side end surface of the V-shaped receiving area is provided with a smooth scraper, and at least one of the two claw plates of the scraping hand claw assembly facing the side end surface of the V-shaped receiving area is provided with a toothed scraper with serrations.

[0013] In an optional implementation of the present invention, each of the claw plates is made of silicone material, and the smooth scraper and the toothed scraper are both made of flexible material.

[0014] In an optional embodiment of the present invention, the driving assembly includes a pair of connecting frames connected to the bottom corner ends of the V-shaped receiving areas of the two claw plates at the same time, a pair of linkage plates connected one-to-one to the bottom corners of the two claw plates away from the V-shaped receiving areas, and a movable plate connected to the pair of linkage plates at the same time; wherein

[0015] The pair of connecting frames are simultaneously connected to a fixed plate, and the fixed plate is fixedly connected to the coating bracket via a pair of connecting plates;

[0016] The fixed plate is also provided with a driving force for driving the movable plate to move within a movable interval formed by a pair of connecting frames.

[0017] In an optional embodiment of the present invention, the connecting plate and the scraping bracket are suitable for forming different matching angles to adjust each of the scraping claw components to form different inclination angles relative to the scraping bracket.

[0018] The wind turbine blade leading edge protection coating device of the present invention is implemented as follows:

[0019] A wind turbine blade leading edge protection coating device, comprising:

[0020] The scraping mechanism;

[0021] The feeding mechanism comprises at least a storage bin, a feed pump located above the storage bin and connected to the storage bin, and at least one coating device connected to the feed pump;

[0022] Each of the coating devices is connected to a cross slide assembly for driving the coating device to move;

[0023] The detection mechanism comprises at least two lateral detection components located on both sides of the wind turbine blade in the length direction and at least one bottom detection component located at the bottom of the wind turbine blade.

[0024] In an optional embodiment of the present invention, the wind turbine blade leading edge protection coating device further includes a bottom support frame for fixing the storage bin; and

[0025] The scraping and coating support is connected to the bottom support frame through at least four buffer floating components.

[0026] In an optional embodiment of the present invention, each of the buffer floating components includes a guide column fixed on the bottom support frame, a slider mounted on the guide column, a connecting plate connected to the slider, and a spring mounted on the guide column and suitable for being compressed and deformed as the slider slides along the guide column.

[0027] In an optional embodiment of the present invention, the cross slide assembly includes a support base for fixing the coating device, a connecting base slidingly matched with the support base, and a vertical column slidingly matched with the connecting base; wherein

[0028] The direction in which the support seat slides along the connecting seat is perpendicular to the direction in which the connecting seat slides along the vertical column.

[0029] In an optional implementation of the present invention, the support seat is further provided with a second linear displacement sensor for detecting the side end surface in the length direction of the wind turbine blade.

[0030] In an optional embodiment of the present invention, the lateral detection component adopts a laser rangefinder; and

[0031] The bottom detection assembly includes a supporting block suitable for supporting the bottom of the wind turbine blade, an elastic support connected to the supporting block, and a first linear displacement sensor provided on the elastic support for detecting the supporting block.

[0032] By adopting the above technical solution, the present invention has the following beneficial effects: a feeding mechanism of the present invention and a wind turbine blade leading edge protection coating device using the same, the two claw plates make relative retraction and opening movements to adjust the two claw plates to form different opening angles, so that the scraping claw assembly of this embodiment can be suitable for wind turbine blades of different sizes, and for each claw plate, an adaptive fit can be formed for the surface of the wind turbine blade to be scraped, thereby realizing the leveling operation of the paint on the surface of the wind turbine blade through a simplified structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a wind turbine blade leading edge protection coating device from a first perspective of the present invention;

[0034] Figure 2 This is a schematic structural diagram of the wind turbine blade leading edge protection coating device from a second perspective of the present invention;

[0035] Figure 3 This is a structural schematic diagram of the scraping mechanism of the wind turbine blade leading edge protection coating device of the present invention;

[0036] Figure 4 This is a schematic structural diagram of the scraping and coating claw assembly of the wind turbine blade leading edge protection coating device of the present invention;

[0037] Figure 5 It is a structural schematic diagram of the elastic support of the wind turbine blade leading edge protection coating device of the present invention.

[0038] In the figure: storage bin 101, pump 102, coating device 103, support base 104, connecting base 105, vertical column 106, first driver 107, second driver 108, second linear displacement sensor 110, bottom support frame 201, support frame 203, laser rangefinder 301, supporting block 302, connecting rod 303, guide column 304, elastic member 305, first linear displacement sensor 306, claw plate 401, connecting hole 403, sawtooth 402, connecting frame 404, linkage plate 405, fixed plate 406, connecting plate 407, scraping bracket 408, driving force 409, movable plate 410, matching hole 411, smooth scraper 412, toothed scraper 413, guide column 501, slider 502, connecting piece 503, spring 504. DETAILED DESCRIPTION

[0039] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0040] Example 1:

[0041] See also Figure 3 As shown, this embodiment provides a scraping mechanism suitable for applying protective paint to the leading edge of a wind turbine blade, which at least includes a scraping bracket 408 and a plurality of scraping claw assemblies arranged on the scraping bracket 408 and spaced apart along the length direction of the wind turbine blade.

[0042] As an example of an optional implementation, each scraping claw assembly includes two claw plates 401 arranged relative to each other to form a V-shaped receiving area for accommodating wind turbine blades, and a drive assembly for driving the two claw plates 401 to move relative to each other. To this end, at least one scraping claw assembly has two claw plates 401 with smooth scraping blades 412 on the side end surfaces facing the V-shaped receiving area, and at least one scraping claw assembly has two claw plates 401 with toothed scraping blades 413 with serrations 402 on the side end surfaces facing the V-shaped receiving area.

[0043] Based on the above situation, five scraping claw assemblies are designed in this embodiment, and along the length direction of the wind turbine blade, there are three adjacent scraping claw assemblies with serrations 402 and two scraping claw assemblies with smooth surfaces. When scraping the paint along the length direction of the wind turbine blade, the three scraping claw assemblies with serrations 402 are first used to spread the paint evenly on the outer surface of the wind turbine blade, and then the two scraping claw assemblies with smooth surfaces are used to smooth the painted surface.

[0044] On the basis of the above structure, it should be noted that each claw plate 401 is made of silicone material. The hardness of the silicone material used this time can range from 25 to 45a, for example, but not limited to 30a. In addition, both the smooth scraper and the toothed scraper are made of flexible material. The flexible material here can be, for example, but not limited to rubber. The smooth scraper 412 and the toothed scraper 413 made of flexible material can not only meet the needs of scraping paint, but also prevent damage to the outer surface of the wind turbine blade. Most importantly, when scraping paint on the wind turbine blade, the claw plate 401 made of silicone material can utilize the micro-deformation properties of silicone material to enable the claw plate 401 to form a reliable fit with the outer surface of the wind turbine blade, so that no additional structure is required to drive the claw plate 401 to move, and the claw plate 401 can effectively ensure the reliable fit with the wind turbine blade, thereby ensuring the reliability of the paint scraping operation. Specifically, the claw plate 401 can utilize the micro-deformation properties of silicone to conform to the slope variations of the side surface along the length of the wind turbine blade, thereby ensuring a reliable fit between the claw plate 401 and the blade surface and improving the uniformity of the leading edge protective paint thickness. Furthermore, this embodiment adjusts the opening angles of the two claw plates 401 by moving them together and apart relative to each other, making the coating gripper assembly of this embodiment suitable for wind turbine blades of varying sizes. Therefore, the coating gripper assembly of this embodiment can meet the coating requirements of wind turbine blades of varying sizes with its relatively simple structure, and can also utilize the silicone material properties of the claw plates 401 to achieve adaptive alignment of the claw plates 401 with the surface of the wind turbine blade to be coated.

[0045] On the basis of the above structure, further speaking, the driving assembly in this embodiment includes a pair of connecting frames 404 connected to the bottom corner ends of the V-shaped placement area corresponding to the two claw plates 401, a pair of linkage plates 405 connected one-to-one to the bottom corners of the two claw plates 401 away from the V-shaped placement area, and a movable plate 406 connected to the pair of linkage plates 405; wherein the pair of connecting frames 404 are simultaneously connected to a fixed plate 410, and the fixed plate 410 is fixedly connected to the scraping bracket 408 through a pair of connecting plates 407. Furthermore, the fixed plate 410 is also provided with a driving force 409 for driving the movable plate 406 to move within the movable range formed by the pair of connecting frames 404. The driving force 409 here can be directly a linear motion driver, such as but not limited to a cylinder or a linear screw module, and this embodiment does not make an absolute limitation on this.

[0046] Based on the above structure, it should be noted that the adapter plate 407 and the scraper bracket 408 are adapted to form different mating angles to adjust the inclination angle of each scraper gripper assembly relative to the scraper bracket 408. Here, in conjunction with the accompanying drawings, an optional embodiment is provided in which the scraper bracket 408 is provided with a plurality of connection holes 403 at the portion thereof that is mated with the adapter plate 407. The plurality of connection holes 403 include at least one centrally located connection hole 403 and a plurality of peripherally located connection holes 403 spaced apart along the circumference. The adapter plate 408 is provided with a plurality of mating holes 144, including at least one centrally located connection hole 144 and a plurality of peripherally located connection holes 144 spaced apart along the circumference. The centrally located mating hole 411 mates with the centrally located connection hole 403, while the peripherally located mating holes 411 selectively mate with different peripherally located connection holes 403. This allows adjustment of the mating angle formed between the adapter plate 407 and the scraper bracket 408.

[0047] In summary, for the scraping mechanism of this embodiment, the two claw plates 401 perform relative retraction and opening movements to adjust the two claw plates 401 to form different opening angles, so that the scraping claw assembly of this embodiment can be suitable for wind turbine blades of different sizes, and each claw plate 401 can form an adaptive fit for the surface of the wind turbine blade to be scraped, thereby achieving the leveling operation of the paint on the surface of the wind turbine blade through a simplified structure.

[0048] Example 2:

[0049] See also Figures 1 to 5 As shown, based on the scraping mechanism of Example 1, this embodiment provides a wind turbine blade leading edge protection coating device, including: the scraping mechanism, detection mechanism and feeding mechanism of Example 1 used in conjunction.

[0050] Specifically, the loading mechanism includes at least: a storage bin 101 for storing paint, a pump 102 located above and connected to the storage bin 101, and at least one coating device 103 connected to the pump 102. The coating device 103 may be, for example, but not limited to, a nozzle. The coating device 103 may be, for example, but not limited to, a nozzle. The pump 102 is connected to the storage bin 101 and the coating device 103 via flexible pipes.

[0051] In terms of the layout orientation, the storage bin 101 is located below the coating device 103, and the pump 102 can be at the same height as the coating device 103, or the pump 102 is located below the coating device 103 but above the storage bin 101. Under this structure, the pump 102 pumps the material in the storage bin 101 into the coating device 103 to finally spray it out through the coating device 103. The pump 102 here can optionally adopt, for example but not limited to, a peristaltic pump to ensure the spraying pressure. Based on this structure, the storage bin 101 is arranged below the pump 102 so that the excess paint generated during the coating process that is not sprayed onto the surface of the wind turbine blade can fall back into the storage bin 101 under the action of gravity for reuse.

[0052] On the basis of the above structure, this embodiment also makes the following design:

[0053] Each coater 103 is connected to a cross slide assembly for driving the coater 103. More specifically, the cross slide assembly includes a support base 104 for fixing the coater 103, a connecting base 105 that slides with the support base 104, and a vertical column 106 that slides with the connecting base 105. The direction in which the support base 104 slides along the connecting base 105 is perpendicular to the direction in which the connecting base 105 slides along the vertical column 106.

[0054] Based on the above, a first actuator 107 is provided between the support base 104 and the connecting base 105 for driving the support base 104 to perform linear motion, and a second actuator 108 is provided between the connecting base 105 and the vertical column 106 for driving the connecting base 105 to perform linear motion. Both the first actuator 107 and the second actuator 108 may be, for example, but not limited to, a linear guide screw module, and this embodiment is not strictly limited to this.

[0055] Based on the above situation, the coater 103 here uses a cross slide assembly to ensure that there is a certain gap between the spray port of the coater 103 and the outer surface of the wind turbine blade, thereby realizing non-contact spraying operation between the coater 103 and the wind turbine blade, avoiding the problem of wind turbine blades blocking the discharge port of the coater 103, and improving the smoothness of the coater 103 spraying materials.

[0056] In addition, regarding the feeding mechanism used in this embodiment, a second linear displacement sensor 110 for detecting the side end face in the length direction of the wind turbine blade is also provided on the support seat 104. The second linear displacement sensor 110 here can optionally adopt, for example, but not limited to, a magnetostrictive sensor. The second linear displacement sensor 110 is arranged side by side with the coating device 103, so that during the process of the coating device 103 spraying the coating material, the second linear displacement sensor 110 provided here can obtain the distance between the coating device 103 and the side face in the length direction of the wind turbine blade in real time, thereby conveniently combining the obtained distance data to regulate the operating state of the first driver, thereby making the support seat 104 slide on the connecting seat 105, thereby adjusting the distance between the sprayer 103 on the support seat 104 and the wind turbine blade, thereby realizing a non-contact spraying operation between the coating device 103 and the wind turbine blade.

[0057] For the feeding mechanism of this embodiment, the feeding process is simple and easy to operate, and the recycling of residual materials is taken into consideration, which can prevent the residual materials from contaminating components other than the wind turbine blades and achieve the effect of saving paint.

[0058] It should be noted that the wind turbine blade leading edge protection coating device of this embodiment also includes a bottom support frame 201 for fixing the storage bin 101; a drawer-type guide rail is provided between the storage bin 101 and the bottom support frame 201, so that the storage bin 101 can enter and leave the bottom support frame 201 along the drawer-type guide rail, thereby facilitating the addition of paint to the storage bin 101 or cleaning the storage bin 101.

[0059] Specifically, first, the loading mechanism includes two coating devices 103 located on both sides of the length direction of the wind turbine blade, and only one coating device 103 is required on each side of the length direction of the wind turbine blade. Through the design of the cross slide assembly, the distance between the coating device 103 and the wind turbine blade is controlled in the horizontal direction by means of the second linear displacement sensor 110, and the coating device 103 oscillates along the vertical column 106 in the vertical direction. During operation, the coating device 103 can draw a sinusoidal curve on the outer surface of the wind turbine blade, making the loading more uniform.

[0060] Next, the detection mechanism comprises at least two lateral detection assemblies located on either side of the wind turbine blade's length and at least one bottom detection assembly located at the base of the wind turbine blade. As an example, the lateral detection assembly employs a laser rangefinder 301. The bottom detection assembly comprises a support block 302 adapted to support the base of the wind turbine blade, an elastic support connected to the support block 302, and a first linear displacement sensor 306 mounted on the elastic support for detecting the support block 302. The first linear displacement sensor 306 may be, for example, but not limited to, a magnetostrictive sensor.

[0061] It should be noted here that, in this embodiment, a pair of supporting frames 203 are arranged above the bottom support frame 201, and a coating device 103 and a cross slide assembly corresponding to the two coating devices 103 are respectively arranged on each supporting frame 203, and a laser rangefinder 301 is also arranged on each supporting frame 203.

[0062] As an example of an elastic support, the embodiment includes a connecting rod 303 disposed between a pair of support frames 203, a pair of guide posts 304 fixed on the connecting rod 303, and a pair of elastic members 305 respectively sleeved on the pair of guide posts 304; the support block 302 is simultaneously slidably engaged with the pair of guide posts 304. A first linear displacement sensor 306 is fixed on the connecting rod 303 and can detect the distance of the support block 302 sliding relative to the guide posts 304 relative to the connecting rod 303. Here, the support block 302 is combined with the elastic support to enable the support block 302 to form a reliable fit with the wind turbine blade. Different wind turbine blades have different forces acting on the support block 302, so the pressure exerted by the support block 302 on the elastic member 305 is also different, and thus the distance of the support block 302 relative to the connecting rod 303 is also different for different wind turbine blades.

[0063] It should also be noted that the wind turbine blade leading edge protection coating device of this embodiment also includes a lifting drive mechanism located at the bottom of the bottom support frame 201 for driving the bottom support frame 201 to perform lifting motion, and an omnidirectional motion chassis for controlling the continuous motion of the wind turbine blade leading edge protection coating device as a whole. Regarding the lifting drive mechanism and the omnidirectional motion chassis herein, any mature means in the prior art that can achieve lifting drive and omnidirectional motion can be adopted, such as but not limited to the lifting structure and omnidirectional motion chassis disclosed in publication number CN117696352A. In this regard, the bottom detection component detects the lower edge of the wind turbine blade in the height direction, and then drives the bottom support frame 201 to perform lifting motion through the lifting drive mechanism, thereby maintaining the adaptability of the entire wind turbine blade leading edge protection coating device to the wind turbine blade surface in the height direction. The two lateral detection components mainly measure and compare the outer surface of the corresponding wind turbine blade to ensure that the wind turbine blade leading edge protection coating device advances along the blade generatrix direction under the action of the omnidirectional motion chassis.

[0064] In addition, it should be noted that the scraping bracket 408 in this embodiment is connected to the bottom support frame 201 through at least four buffer floating components. Here, an example is given in conjunction with the accompanying drawings. Each buffer floating component includes a guide column 501 fixed on the bottom support frame 201, a slider 502 mounted on the guide column 501, a connecting piece 503 connected to the slider 502, and a spring 504 mounted on the guide column 501 and suitable for being compressed and deformed as the slider 502 slides along the guide column 501. The connecting piece 503 is fixed to the scraping bracket 408. Here, through the design of the buffer floating component, the several scraping claw assemblies on the scraping bracket 408 can use the elasticity of the spring 504 to imitate the slope change of the side surface in the length direction of the wind turbine blade, thereby ensuring that the claw plate 401 can form a reliable fit effect with the surface of the blade and improve the uniformity of the thickness of the leading edge protective paint surface.

[0065] Finally, it is necessary to explain that, based on the loading process for spraying paint on the surface of the wind turbine blade or the scraping process for scraping paint on the surface of the wind turbine blade, there may be a problem of excess paint that needs to be recycled. Regarding the storage bin 101 of this embodiment, it is also necessary to explain that the end face of the storage bin 101 facing the paint dispenser 103 and the claw plate 401 is an open opening, and the open opening extends along the direction in which the storage bin 101 enters and exits the bottom support frame 201, so that the open opening can extend from the bottom of the several scraping claw assemblies of the scraping mechanism to the bottom of the paint dispenser 103. Based on this, both the support frame 203 and the scraping bracket 408 adopt a frame structure, so that the support frame 203 and the scraping bracket 408 are formed with a structure suitable for excess paint to fall into the storage bin 101 directly through the open opening of the storage bin 101 from the parts of the wind turbine blade corresponding to the paint dispenser 103 and the several scraping claw assemblies in the direction of gravity. This structure directly utilizes the gravity of the paint and the material receiving function of the storage bin 101 itself to realize the recycling of excess paint, without the need for an additional paint recycling structure. Therefore, it can simplify the structure of the overall wind turbine blade leading edge protection coating device to a certain extent.

[0066] In summary, the wind turbine blade leading edge protection coating device of this embodiment can not only improve the efficiency and uniformity of the wind turbine blade leading edge coating operation, but also simplify the structure of the entire device, thereby reducing production costs and failure rates in use.

[0067] The above specific embodiments further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0068] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0069] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0070] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0071] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0072] In the present invention, unless otherwise expressly specified or limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A scraping mechanism, characterized in that: It at least comprises: a scraping bracket and a plurality of scraping claw assemblies arranged on the scraping bracket and spaced apart along the length direction of the wind turbine blade; Each of the coating claw assemblies comprises two claw plates arranged relative to each other to form a V-shaped receiving area for accommodating a wind turbine blade, and a driving assembly for driving the two claw plates to move relative to each other; and At least one of the two claw plates of the scraping hand claw assembly facing the side end surface of the V-shaped receiving area is provided with a smooth scraper, and at least one of the two claw plates of the scraping hand claw assembly facing the side end surface of the V-shaped receiving area is provided with a toothed scraper with serrations.

2. The scraping mechanism according to claim 1, characterized in that: Each claw plate is made of silicone material, and the smooth scraper and the toothed scraper are both made of flexible material.

3. The scraping mechanism according to claim 1 or 2, characterized in that: The driving assembly includes a pair of connecting frames connected to the bottom corner ends of the V-shaped receiving areas of the two claw plates, a pair of linkage plates connected one-to-one to the bottom corners of the two claw plates away from the V-shaped receiving areas, and a movable plate connected to the pair of linkage plates; wherein The pair of connecting frames are simultaneously connected to a fixed plate, and the fixed plate is fixedly connected to the coating bracket via a pair of connecting plates; The fixed plate is also provided with a driving force for driving the movable plate to move within a movable interval formed by a pair of connecting frames.

4. The scraping mechanism according to claim 3, characterized in that: The connecting plate and the scraping bracket are suitable for forming different matching angles to adjust each scraping hand claw assembly to form different inclination angles relative to the scraping bracket.

5. A wind turbine blade leading edge protection coating device, characterized in that: include: The scraping mechanism according to any one of claims 1 to 4; A feeding mechanism, which comprises at least a storage bin, a material pump located above the storage bin and connected to the storage bin, and at least one coating device connected to the material pump; in Each of the coating devices is connected to a cross slide assembly for driving the coating device to move; The detection mechanism comprises at least two lateral detection components located on both sides of the wind turbine blade in the length direction and at least one bottom detection component located at the bottom of the wind turbine blade.

6. The wind turbine blade leading edge protection coating device according to claim 5, characterized in that: The wind turbine blade leading edge protection coating device further includes a bottom support frame for fixing the storage bin; and The scraping and coating support is connected to the bottom support frame through at least four buffer floating components.

7. The wind turbine blade leading edge protection coating device according to claim 6, characterized in that: Each of the buffer floating components includes a guide column fixed on the bottom support frame, a slider mounted on the guide column, a connecting piece connected to the slider, and a spring mounted on the guide column and suitable for being compressed and deformed as the slider slides along the guide column.

8. The wind turbine blade leading edge protection coating device according to any one of claims 5 to 7, characterized in that: The cross slide assembly includes a support base for fixing the coating device, a connecting base slidably matched with the support base, and a vertical column slidably matched with the connecting base; in The direction in which the support seat slides along the connecting seat is perpendicular to the direction in which the connecting seat slides along the vertical column.

9. The wind turbine blade leading edge protection coating device according to claim 8, characterized in that: The support seat is also provided with a second linear displacement sensor for detecting the side end surface in the length direction of the wind turbine blade.

10. The wind turbine blade leading edge protection coating device according to any one of claims 5 to 7, characterized in that: The lateral detection component adopts a laser rangefinder; and The bottom detection assembly includes a supporting block suitable for supporting the bottom of the wind turbine blade, an elastic support connected to the supporting block, and a first linear displacement sensor provided on the elastic support for detecting the supporting block.

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