Equipment for processing surface coating of wind power blade and film coating method

Abstract

The invention relates to the technical field of wind power blade surface machining, and discloses wind power blade surface coating machining equipment and a film coating method.The wind power blade surface coating machining equipment comprises a base, a first motor is fixedly connected to the side wall of the base, a lead screw is rotatably connected to the interior of the base, and an output shaft of the first motor is fixedly connected to the end of the lead screw; the rod wall of the lead screw is in threaded connection with a sliding block, the sliding block is arranged on the inner wall of the base in a sliding mode, the upper surface of the sliding block is fixedly connected with a movable seat, a cavity is formed in the movable seat, and an arc-shaped spraying frame is arranged in the position, located in the cavity, of the movable seat in a sliding mode; and a plurality of pressurizing spray heads are fixedly connected to the inner wall of the arc-shaped spraying frame in a surrounding manner. According to the equipment for processing the surface coating of the wind power blade and the film coating method, the surface of the blade can be more comprehensively sprayed in the processing process of the surface of the wind power blade, the spraying angle can be flexibly adjusted according to use requirements, and the processing quality and efficiency of the surface coating of the wind power blade are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade surface processing technology, specifically to a coating equipment and coating method for wind turbine blade surfaces. Background Technology

[0002] Wind turbine blade surface processing focuses on improving aerodynamic performance, enhancing weather resistance, and extending service life. Through a full process of post-forming finishing, surface treatment, coating protection, and precision testing, the blades are finely processed. The core objective is to ensure that the blade surface is smooth and flat, and the coating is wear-resistant and corrosion-resistant, which directly affects the wind turbine's power generation efficiency and operation and maintenance costs, and is suitable for onshore or offshore wind power scenarios.

[0003] Currently, during the coating process on wind turbine blades, the blades are relatively large, and the equipment can only perform localized spraying on one side of the blade surface. This makes it difficult to perform flexible and comprehensive spraying on the entire equipment body, which may result in uneven coating thickness during spraying, making it difficult to guarantee the spraying quality and affecting the processing efficiency of wind turbine blades. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a device and method for coating wind turbine blade surfaces. These methods enable more comprehensive spraying of the blade surface during processing, and allow for flexible adjustment of the spraying angle according to usage requirements. This ensures both the quality and efficiency of the wind turbine blade surface coating process. The invention solves the problem that in wind turbine blade coating processes, due to the large blade volume, the device can only perform localized spraying on one side of the blade surface, hindering flexible and comprehensive spraying of the device itself. This can lead to uneven coating thickness, difficulty in guaranteeing coating quality, and reduced processing efficiency for wind turbine blades.

[0005] Two technical solutions To achieve the above objectives, the present invention provides the following technical solution: a coating equipment and method for wind turbine blade surface coating, comprising a base, a first motor fixedly connected to the side wall of the base, a lead screw rotatably connected inside the base, the output shaft of the first motor fixedly connected to the end of the lead screw, a slider threadedly connected to the wall of the lead screw, the slider slidably disposed on the inner wall of the base, a movable seat fixedly connected to the upper surface of the slider, a cavity formed inside the movable seat, and an arc-shaped spraying frame slidably disposed inside the movable seat within the cavity. The inner wall of the arc-shaped spray frame is fixedly connected with multiple pressurized spray nozzles, and the side wall of the arc-shaped spray frame is fixedly connected with multiple teeth. The inner wall of the movable seat is rotatably connected with multiple rotating rods, and gears are fixedly sleeved on the rod walls of each of the multiple rotating rods. The multiple gears are respectively meshed with the multiple teeth. A fixed frame is fixedly connected to the side wall of the movable seat, and a second motor is fixedly connected to the side wall of the fixed frame. The rod walls of the multiple rotating rods extend to the outside of the movable seat, and the end of one of the rotating rods is fixedly connected to the output end of the second motor.

[0006] Preferably, the inner wall of the slider is provided with a sliding hole, and the inner wall of the base is fixedly connected with a guide rod, the rod wall of the guide rod being slidably disposed on the inner wall of the sliding hole.

[0007] Preferably, a fixing seat is fixedly connected to the side wall of the base, and the fixing seat is provided with mounting bolts inside.

[0008] Preferably, a support base is fixedly connected to the side wall of the movable seat, a liquid storage tank is fixedly connected to the top of the support base, a water pump is fixedly connected to the top of the liquid storage tank, a connecting pipe is fixedly connected to the side wall of the water pump, the connecting pipe extends into the interior of the liquid storage tank, an output pipe is fixedly connected to the side wall of the water pump, and the end of the output pipe opposite to the water pump extends into the interior of the arc-shaped spray frame, the interior of the arc-shaped spray frame is provided with a cavity.

[0009] Preferably, the output tube is configured as a spiral.

[0010] Preferably, a first synchronous pulley is fixedly sleeved on the wall of each of the two rotating rods, and a second synchronous pulley is fixedly sleeved on the wall of each of the two outer rotating rods. A first synchronous belt is synchronously sleeved on the inner wall of the first and second synchronous pulleys, and a second synchronous belt is simultaneously sleeved on the inner wall of the two first synchronous pulleys.

[0011] Preferably, the side wall of the arc-shaped spraying frame is provided with an arc-shaped guide groove, and multiple stabilizing frames are fixedly connected inside the movable seat, with the arc-shaped spraying frame disposed inside the stabilizing frames.

[0012] Preferably, a guide block is fixedly connected to the inner wall of the stabilizer, and the guide block is slidably disposed on the inner wall of the arc-shaped guide groove.

[0013] A coating method for a wind turbine blade surface coating processing device, the specific coating method is as follows: S1: Before officially starting the coating work, the equipment needs to be securely placed in a suitable operating area using the mounting bracket and bolts. After the equipment is in place, the operator should carefully check whether the connections between the components are secure. At the same time, open the lid of the liquid storage tank and use a special paint adding tool to slowly pour the prepared paint into the liquid storage tank. The amount of paint should be added reasonably according to the actual coating needs. Too much or too little paint may cause waste, while too little paint may cause the coating work to be interrupted.

[0014] S2: Place the wind turbine blade to be coated smoothly on the special blade support frame. Then, start the first motor. The first motor starts running, and its output shaft drives the lead screw to rotate. The lead screw is like a precision transmission component. Its rotation is converted into the linear movement of the slider along the lead screw. Since the inner wall of the slider has a sliding hole, the guide rod fixedly connected to the inner wall of the base slides in the inner wall of the sliding hole. The guide rod can effectively guide the movement direction of the slider, so that it can only move in a straight line along the direction of the guide rod, thereby ensuring the stability and accuracy of the slider movement. As the slider moves, the movable seat fixedly connected to the upper surface of the slider also moves. The operator observes the position of the movable seat and its relative relationship with the blade, and precisely adjusts the position of the movable seat until the arc-shaped spraying frame moves to the starting spraying position of the wind turbine blade, so that the arc-shaped spraying frame and the starting position of the blade are precisely aligned.

[0015] S3: Once the movable seat is precisely positioned, the second motor is started. Its output shaft drives the connected rotating rods to rotate. Multiple rotating rods are synchronously transmitted through the first synchronous pulley, the second synchronous pulley, the first synchronous belt, and the second synchronous belt. Since gears are fixedly sleeved on the walls of multiple rotating rods, and an arc-shaped spraying frame is slidably installed inside the movable seat, and multiple teeth are fixedly connected around the side wall of the arc-shaped spraying frame, the multiple gears mesh with the multiple teeth to transmit power to the arc-shaped spraying frame. This allows the arc-shaped spraying frame to rotate and adjust along the arc-shaped surface of the wind turbine blade inside the movable seat, enabling subsequent comprehensive spraying treatment of the wind turbine blade surface.

[0016] S4: Start the water pump to continuously extract the paint from the storage tank through the connecting pipe. Under the action of the water pump, the paint is sent to the inside of the arc-shaped spray frame through the output pipe. The output pipe is set in a spiral shape so that it can move with the arc-shaped spray frame without affecting the delivery of the paint. The inside of the arc-shaped spray frame has a cavity. When the paint enters the cavity, it will be quickly dispersed to each pressurized nozzle to pressurize the paint, so that the paint is evenly sprayed out from the nozzle in a high-pressure, fine mist, thereby forming a uniform and dense coating on the surface of the wind turbine blade.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides an equipment and method for coating the surface of wind turbine blades, which has the following advantages: 1. The equipment and method for processing the surface coating of wind turbine blades, wherein the output end of the second motor drives the corresponding rotating rod to rotate, and the gear fixedly sleeved on the rod wall meshes with the teeth fixed around the side wall of the arc-shaped spraying frame. When the gear rotates, it drives the arc-shaped spraying frame to rotate and swing along the inside of the movable seat. The working angle can be adjusted according to the usage requirements. Through the rotation of the arc-shaped spraying frame, the multiple pressurized nozzles fixed around its inner wall can fit into the arc-shaped surface of the wind turbine blade to achieve circumferential all-round spraying and ensure uniform coating thickness.

[0018] 2. The equipment and coating method for processing the surface coating of wind turbine blades, by starting the first motor on the side wall of the base, the output shaft of the first motor drives the lead screw connected inside the base to rotate. The slider connected to the screw wall by the threaded connection moves linearly back and forth along the inner wall of the base under the limiting action of the guide rod, so as to realize the horizontal position adjustment. The movable seat fixed on the upper surface of the slider moves synchronously with the slider, thereby driving the arc-shaped spray frame inside the cavity of the movable seat to move together, so that the pressurized nozzle can cover the length direction of the blade, meeting the spraying requirements of long-size wind turbine blades.

[0019] 3. The equipment and coating method for the surface coating of the wind turbine blade: The liquid storage tank at the top of the side wall support of the movable seat is used to store the coating material. The water pump is started, and the water pump draws the coating material from the liquid storage tank through the connecting pipe and delivers it to the cavity of the arc-shaped spray frame through the output pipe. The output pipe is set in a spiral shape to adapt to the rotation of the arc-shaped spray frame and avoid damage to the pipe by pulling. The coating material is distributed to each pressurized nozzle in the cavity of the arc-shaped spray frame. The pressurized nozzle atomizes the material and sprays it evenly on the surface of the wind turbine blade to complete the coating process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the movable seat of the equipment and coating method for processing the surface coating of wind turbine blades proposed in this invention; Figure 2This is a rear view of the structure of the movable seat of the equipment and coating method for processing the surface coating of wind turbine blades proposed in this invention; Figure 3 This is a structural cross-sectional view of the movable seat of the equipment and coating method for processing the surface coating of wind turbine blades proposed in this invention; Figure 4 This is a top view of the base of the equipment and coating method for processing the surface coating of wind turbine blades proposed in this invention; Figure 5 for Figure 2 Top view of the structure of the first and second synchronous pulleys.

[0021] In the diagram: 1. Base, 2. First motor, 3. Lead screw, 4. Slider, 5. Guide rod, 6. Fixed seat, 7. Mounting bolt, 8. Movable seat, 9. Arc-shaped spray frame, 10. Pressure booster nozzle, 11. Tooth, 12. Rotating rod, 13. Gear, 14. Fixed frame, 15. Second motor, 16. Support seat, 17. Liquid storage tank, 18. Water pump, 19. Connecting pipe, 20. Output pipe, 21. First synchronous pulley, 22. Second synchronous pulley, 23. First synchronous belt, 24. Second synchronous belt, 25. Stabilizer, 26. Guide block. Detailed Implementation

[0022] 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, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of the present invention.

[0023] Reference Figure 1-5 A coating equipment and method for wind turbine blade surface coating includes a base 1. A first motor 2 is fixedly connected to the side wall of the base 1. A lead screw 3 is rotatably connected inside the base 1. The output shaft of the first motor 2 is fixedly connected to the end of the lead screw 3. A slider 4 is threadedly connected to the wall of the lead screw 3. The slider 4 is slidably disposed on the inner wall of the base 1. A movable seat 8 is fixedly connected to the upper surface of the slider 4. A cavity is opened inside the movable seat 8. An arc-shaped spray frame 9 is slidably disposed inside the cavity. Multiple [unclear] are fixedly connected around the inner wall of the arc-shaped spray frame 9. The pressurized nozzle 10 and the arc-shaped spray frame 9 are surrounded and fixedly connected to multiple teeth 11. Multiple rotating rods 12 are rotatably connected to the inner wall of the movable seat 8. Gears 13 are fixedly sleeved on the rod walls of the multiple rotating rods 12. The multiple gears 13 are respectively meshed with the multiple teeth 11. A fixed frame 14 is fixedly connected to the side wall of the movable seat 8. A second motor 15 is fixedly connected to the side wall of the fixed frame 14. The rod walls of the multiple rotating rods 12 extend to the outside of the movable seat 8. The end of one of the rotating rods 12 is fixedly connected to the output end of the second motor 15.

[0024] The inner wall of the slider 4 has a sliding hole, and the inner wall of the base 1 is fixedly connected to the guide rod 5. The rod wall of the guide rod 5 is slidably set on the inner wall of the sliding hole. The side wall of the base 1 is fixedly connected to the fixing seat 6, and the fixing seat 6 is provided with the mounting bolt 7 inside.

[0025] A support base 16 is fixedly connected to the side wall of the movable base 8. A liquid storage tank 17 is fixedly connected to the top of the support base 16. A water pump 18 is fixedly connected to the top of the liquid storage tank 17. A connecting pipe 19 is fixedly connected to the side wall of the water pump 18. The connecting pipe 19 extends into the interior of the liquid storage tank 17. An output pipe 20 is fixedly connected to the side wall of the water pump 18. The end of the output pipe 20 away from the water pump 18 extends into the interior of the arc-shaped spray frame 9. The interior of the arc-shaped spray frame 9 has a cavity. The output pipe 20 is set in a spiral shape.

[0026] Two of the rotating rods 12 are respectively fitted with first synchronous pulleys 21 on their rod walls, and two of the outer rotating rods 12 are respectively fitted with second synchronous pulleys 22 on their rod walls. The inner walls of the first synchronous pulleys 21 and the second synchronous pulleys 22 are simultaneously fitted with first synchronous belts 23, and the inner walls of the two first synchronous pulleys 21 are simultaneously fitted with second synchronous belts 24.

[0027] The side wall of the arc-shaped spraying frame 9 is provided with an arc-shaped guide groove. Multiple stabilizers 25 are fixedly connected inside the movable seat 8. The arc-shaped spraying frame 9 is set inside the stabilizers 25. The inner wall of the stabilizers 25 is fixedly connected with guide blocks 26. The guide blocks 26 are slidably set on the inner wall of the arc-shaped guide groove.

[0028] The equipment uses base 1 as the core support foundation. The fixing seat 6 on the side wall of base 1 can be used to fix the equipment firmly in the work site by mounting bolts 7 to avoid shaking during the spraying process and ensure the coating processing accuracy. When using it, first fix the wind turbine blade to be processed in the designated work position and ensure that the blade surface faces the direction of the pressure spray head 10 of the arc-shaped spray frame 9. The first motor 2 on the side wall of the base 1 is started. The output shaft of the first motor 2 drives the lead screw 3 connected inside the base 1 to rotate. The slider 4, which is threaded to the wall of the lead screw 3, moves linearly back and forth along the inner wall of the base 1 under the limiting action of the guide rod 5, so as to realize the horizontal position adjustment. The movable seat 8 fixed on the upper surface of the slider 4 moves synchronously with the slider 4, thereby driving the arc-shaped spray frame 9 inside the cavity of the movable seat 8 to move together, so that the pressurized nozzle 10 can cover the length direction of the blade and meet the spraying requirements of long wind turbine blades. To achieve all-around spraying of the curved blade surface, the second motor 15 on the side wall fixing bracket 14 of the movable seat 8 is activated. The output end of the second motor 15 drives the corresponding rotating rod 12 to rotate. The rotating rod 12 drives multiple rotating rods 12 on the inner wall of the movable seat 8 to rotate synchronously through the transmission cooperation of the first synchronous pulley 21, the second synchronous pulley 22, the first synchronous belt 23, and the second synchronous belt 24. The gear 13 fixedly sleeved on the rod wall of the rotating rod 12 meshes with the teeth 11 fixed around the side wall of the arc-shaped spraying frame 9. When the gear 13 rotates, it drives the arc-shaped spraying frame 9 to rotate. The arc-shaped spray frame 9 rotates and swings inside the movable seat 8, and the working angle can be adjusted according to the usage requirements. The arc-shaped guide groove on the side wall of the arc-shaped spray frame 9 slides and engages with the guide block 26 on the inner wall of the stabilizer 25. The stabilizer 25 is fixed inside the movable seat 8, providing stable support for the arc-shaped spray frame 9, ensuring that its rotation process is smooth and avoiding deviation. Through the rotation of the arc-shaped spray frame 9, the multiple pressurized nozzles 10 fixed around its inner wall can fit into the arc-shaped surface of the wind turbine blade, realizing circumferential all-round spraying and ensuring uniform coating thickness. During the spraying operation, the liquid storage tank 17 at the top of the side wall support 16 of the movable seat 8 is used to store the coating material. The water pump 18 is started, and the water pump 18 draws the coating material from the liquid storage tank 17 through the connecting pipe 19 and delivers it to the cavity of the arc-shaped spray frame 9 through the output pipe 20. The output pipe 20 is set in a spiral shape to adapt to the rotation of the arc-shaped spray frame 9 and avoid damage to the pipe. The coating material is distributed to each pressurized nozzle 10 in the cavity of the arc-shaped spray frame 9. The pressurized nozzle 10 atomizes the material and sprays it evenly on the surface of the wind turbine blade to complete the coating process. The entire equipment works in concert through the linear movement driven by the first motor 2 and the arc rotation driven by the second motor 15, combined with the uniform spraying design of the booster nozzle 10, to achieve efficient and precise processing of the coating on the surface of wind turbine blades. It adapts to the curved structure and long dimension requirements of wind turbine blades, ensuring coating processing quality and production efficiency.

[0029] A coating method for a wind turbine blade surface coating processing device, the specific coating method is as follows: S1: Before officially starting the coating work, the equipment needs to be securely placed in a suitable operating area using the fixing base 6 and mounting bolts 7. After the equipment is placed, the operator should carefully check whether the connection between each part is firm. At the same time, open the lid of the liquid storage tank 17 and use a special paint adding tool to slowly pour the prepared paint into the liquid storage tank 17. The amount of paint should be added reasonably according to the actual coating needs. It should not be too much or too little. Too much may cause waste, while too little may cause the coating work to be interrupted.

[0030] S2: Place the wind turbine blade to be coated smoothly on the special blade support frame. Then, start the first motor 2. The first motor 2 starts to run, and its output shaft drives the lead screw 3 to rotate together. The lead screw 3 is like a precision transmission component. Its rotation is converted into the linear movement of the slider 4 along the lead screw 3. Since the inner wall of the slider 4 has a sliding hole, the guide rod 5, which is fixedly connected to the inner wall of the base 1, is slidably set in the inner wall of the sliding hole. The guide rod 5 can effectively guide the movement direction of the slider 4, so that it can only move in a straight line along the direction of the guide rod 5, thereby ensuring the stability and accuracy of the movement of the slider 4. As the slider 4 moves, the movable seat 8, which is fixedly connected to the upper surface of the slider 4, also moves. The operator observes the position of the movable seat 8 and its relative relationship with the blade, and precisely adjusts the position of the movable seat 8 until the arc-shaped spraying frame 9 moves to the starting spraying position of the wind turbine blade, so that the arc-shaped spraying frame 9 and the starting position of the blade are precisely aligned.

[0031] S3: After the movable seat 8 is precisely positioned, the second motor 15 is started to work. Its output shaft drives the connected rotating rod 12 to rotate. Multiple rotating rods 12 are synchronously transmitted through the first synchronous pulley 21, the second synchronous pulley 22, the first synchronous belt 23 and the second synchronous belt 24. Since gears 13 are fixedly sleeved on the rod walls of multiple rotating rods 12, and an arc-shaped spray frame 9 is slidably provided inside the movable seat 8, and multiple teeth 11 are fixedly connected around the side wall of the arc-shaped spray frame 9, the multiple gears 13 mesh with the multiple teeth 11 respectively, and transmit power to the arc-shaped spray frame 9, so that the arc-shaped spray frame 9 rotates and adjusts inside the movable seat 8 along the arc surface of the wind turbine blade, which can then perform comprehensive spraying treatment on the surface of the wind turbine blade.

[0032] S4: The water pump 18 is started to continuously extract the paint from the storage tank 17 through the connecting pipe 19. Under the action of the water pump 18, the paint is sent to the interior of the arc-shaped spray frame 9 through the output pipe 20. The output pipe 20 is set in a spiral shape so that it can move with the arc-shaped spray frame 9 without affecting the delivery of the paint. The interior of the arc-shaped spray frame 9 has a cavity. When the paint enters the cavity, it will be quickly dispersed to each pressurized nozzle 10 to pressurize the paint, so that the paint is evenly sprayed out from the nozzle in a high-pressure, fine mist, thereby forming a uniform and dense coating on the surface of the wind turbine blade.

[0033] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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 device for processing a surface coating on wind turbine blades, comprising a base (1), characterized in that: A first motor (2) is fixedly connected to the side wall of the base (1). A lead screw (3) is rotatably connected inside the base (1). The output shaft of the first motor (2) is fixedly connected to the end of the lead screw (3). A slider (4) is threadedly connected to the wall of the lead screw (3). The slider (4) is slidably disposed on the inner wall of the base (1). A movable seat (8) is fixedly connected to the upper surface of the slider (4). A cavity is opened inside the movable seat (8). An arc-shaped spray frame (9) is slidably disposed inside the cavity. Multiple pressurized nozzles (10) are fixedly connected around the inner wall of the arc-shaped spray frame (9). Multiple teeth (11) are fixedly connected around the side wall of the coating rack (9). Multiple rotating rods (12) are rotatably connected to the inner wall of the movable seat (8). Gears (13) are fixedly sleeved on the rod walls of the multiple rotating rods (12). The multiple gears (13) are respectively meshed with the multiple teeth (11). A fixed frame (14) is fixedly connected to the side wall of the movable seat (8). A second motor (15) is fixedly connected to the side wall of the fixed frame (14). The rod walls of the multiple rotating rods (12) extend to the outside of the movable seat (8). The end of one of the rotating rods (12) is fixedly connected to the output end of the second motor (15).

2. The equipment for processing surface coatings on wind turbine blades according to claim 1, characterized in that: The inner wall of the slider (4) is provided with a sliding hole, and the inner wall of the base (1) is fixedly connected with a guide rod (5). The rod wall of the guide rod (5) is slidably disposed on the inner wall of the sliding hole.

3. The equipment for processing surface coatings on wind turbine blades according to claim 1, characterized in that: A fixing seat (6) is fixedly connected to the side wall of the base (1), and the fixing seat (6) is provided with mounting bolts (7).

4. The equipment for processing surface coatings on wind turbine blades according to claim 1, characterized in that: A support base (16) is fixedly connected to the side wall of the movable seat (8). A liquid storage tank (17) is fixedly connected to the top of the support base (16). A water pump (18) is fixedly connected to the top of the liquid storage tank (17). A connecting pipe (19) is fixedly connected to the side wall of the water pump (18). The connecting pipe (19) extends into the interior of the liquid storage tank (17). An output pipe (20) is fixedly connected to the side wall of the water pump (18). The end of the output pipe (20) away from the water pump (18) extends into the interior of the arc-shaped spray frame (9). A cavity is opened inside the arc-shaped spray frame (9).

5. The equipment for processing surface coatings on wind turbine blades according to claim 1, characterized in that: The output tube (20) is configured as a spiral.

6. The equipment for processing surface coatings on wind turbine blades according to claim 1, characterized in that: Two of the rotating rods (12) are respectively fitted with first synchronous pulleys (21) on their rod walls, and two of the outer rotating rods (12) are respectively fitted with second synchronous pulleys (22) on their rod walls. The inner walls of the first synchronous pulleys (21) and the second synchronous pulleys (22) are fitted with first synchronous belts (23), and the inner walls of the two first synchronous pulleys (21) are fitted with second synchronous belts (24).

7. The equipment for processing surface coatings on wind turbine blades according to claim 1, characterized in that: The arc-shaped spraying frame (9) has an arc-shaped guide groove on its side wall. The movable seat (8) has multiple stabilizers (25) fixedly connected inside. The arc-shaped spraying frame (9) is located inside the stabilizers (25).

8. The equipment for processing surface coatings on wind turbine blades according to claim 7, characterized in that: The inner wall of the stabilizer (25) is fixedly connected to a guide block (26), which is slidably disposed on the inner wall of the arc-shaped guide groove.

9. The coating method for a wind turbine blade surface coating processing equipment according to claim 1, characterized in that: Including the equipment for processing the surface coating of wind turbine blades according to any one of claims 1-8, the specific coating method is as follows: S1: Before officially starting the coating work, the equipment needs to be securely placed in a suitable operating area using the mounting base (6) and mounting bolts (7). After the equipment is placed, the operator should carefully check whether the connection between each part is secure. At the same time, open the lid of the liquid storage tank (17) and use a special paint adding tool to slowly pour the prepared paint into the liquid storage tank (17). The amount of paint should be added reasonably according to the actual coating needs. It should not be too much or too little. Too much may cause waste, while too little may cause the coating work to be interrupted. S2: Place the wind turbine blade to be coated smoothly on a special blade support frame. Then, start the first motor (2). The first motor (2) starts to run, and its output shaft drives the lead screw (3) to rotate together. The lead screw (3) is like a precision transmission component. Its rotation is converted into the linear movement of the slider (4) along the lead screw (3). Since the inner wall of the slider (4) is provided with a sliding hole, the guide rod (5) fixedly connected to the inner wall of the base (1) is slidably set in the inner wall of the sliding hole. The guide rod (5) can effectively guide the slider (4). The direction of movement is determined so that it can only move in a straight line along the direction of the guide rod (5), thereby ensuring the stability and accuracy of the movement of the slider (4). As the slider (4) moves, the movable seat (8) fixedly connected to the upper surface of the slider (4) also moves. By observing the position of the movable seat (8) and its relative relationship with the blade, the operator can accurately adjust the position of the movable seat (8) until the arc-shaped spraying frame (9) moves to the starting spraying position of the wind turbine blade, so that the arc-shaped spraying frame (9) and the starting position of the blade can be accurately connected. S3: After the movable seat (8) is precisely positioned, the second motor (15) is started to work. Its output shaft drives the rotating rod (12) connected to it to rotate. Multiple rotating rods (12) are synchronously driven through the first synchronous pulley (21), the second synchronous pulley (22), the first synchronous belt (23), and the second synchronous belt (24). Since gears (13) are fixedly sleeved on the rod walls of multiple rotating rods (12), and an arc-shaped spray frame (9) is slidably provided inside the movable seat (8), and multiple teeth (11) are fixedly connected around the side wall of the arc-shaped spray frame (9). Multiple gears (13) mesh with multiple teeth (11) respectively, and transmit power to the arc-shaped spray frame (9), so that the arc-shaped spray frame (9) rotates and adjusts along the arc surface of the wind turbine blade inside the movable seat (8), and can then perform comprehensive spraying treatment on the surface of the wind turbine blade. S4: Start the water pump (18) to continuously extract the paint from the storage tank (17) through the connecting pipe (19). Under the action of the water pump (18), the paint is sent to the inside of the arc-shaped spray frame (9) through the output pipe (20). The output pipe (20) is set in a spiral shape so that it can follow the arc-shaped spray frame (9) without affecting the delivery of the paint. The inside of the arc-shaped spray frame (9) is provided with a cavity. When the paint enters the cavity, it will be quickly dispersed to each pressurized nozzle (10) to pressurize the paint, so that the paint is sprayed out evenly from the nozzle in a high-pressure, fine mist, thereby forming a uniform and dense coating on the surface of the wind turbine blade.

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