A wind turbine blade de-icing coating application platform and spraying method

Abstract

The present application belongs to the technical field of paint, and particularly relates to a wind turbine blade anti-icing paint construction platform, comprising a hanging basket main body, wherein a supporting mechanism is arranged on the top of the hanging basket main body, a lifting mechanism is arranged on the surface of the supporting mechanism, and a sealing mechanism is arranged on the surface of the lifting mechanism. The wind turbine blade anti-icing paint construction platform and the spraying method can enable the construction personnel to realize multi-angle simultaneous spraying through the 'hui' type hanging basket, can greatly improve the spraying efficiency, and can realize dead angle-free spraying, so as to improve the spraying quality of the blade. The construction personnel can spray under the condition that the blade is installed, the abrasion caused by spraying first and then hoisting is avoided, the time wasted for waiting for the paint to solidify is reduced, the construction period is greatly shortened, the construction cost is greatly reduced, the construction personnel can carry more paint, and the time for the construction personnel to go to the ground to supplement the paint can be greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of spraying technology, specifically to a platform for applying anti-icing coating to wind turbine blades and a spraying method. Background Technology

[0002] In the field of wind power generation, anti-icing of wind turbine blades is a crucial technological challenge. With the widespread application of wind power, blades are prone to icing under conditions of low temperature and high humidity. This leads to increased blade weight, decreased aerodynamic performance, and consequently affects the efficiency and safety of the wind turbine. Therefore, developing effective anti-icing technologies is of great significance for ensuring the normal operation of wind power systems and improving power generation efficiency. De-icing methods are generally divided into passive and active de-icing. Passive de-icing mainly includes manual removal and the application of de-icing agents, but these are time-consuming, labor-intensive, and have limited application scope. Active de-icing mainly involves thermal de-icing, the addition of anti-icing materials, and anti-icing surface coatings. Among these, surface coating anti-icing has significant advantages in terms of applicability and construction costs. The principle of using coatings for anti-icing generally involves reducing the contact area between water and the substrate, thus reducing the effective heat transfer area for water to condense into ice, or reducing the adhesion between water / ice and the coating surface, making it easier for water / ice to slide off under external forces. Currently, most wind farms apply anti-icing coatings to wind turbine blades by first spraying the coating on the ground and then assembling the blades onto the turbine.

[0003] Under the current construction methods, taking a complete blade as an example, after spraying one side of the blade on the ground, it is necessary to wait for the paint to dry completely before a crane can be used to flip it over to spray the other side. This greatly reduces construction efficiency and increases construction costs. Furthermore, during the lifting and transportation of the blade, the paint surface will be abraded, affecting the final performance of the finished product. Moreover, this spraying construction method cannot meet the spraying construction requirements of existing (operating) wind turbine blades in the market. Summary of the Invention

[0004] The purpose of this invention is to provide a platform for applying anti-icing coating to wind turbine blades and a spraying method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wind turbine blade anti-icing coating application platform, comprising a suspended basket body, a support mechanism on the top of the suspended basket body, a lifting mechanism on the surface of the support mechanism, and a closing mechanism on the surface of the lifting mechanism.

[0006] The support mechanism includes an outer protective frame, which is fixedly connected to the top of the maintenance platform. An inner protective frame is provided inside the outer protective frame. Both the inner and outer protective frames are closed ring structures, and the inner and outer protective frames are arranged at intervals from the inside to the outside. The inner and outer protective frames and the maintenance platform enclose the maintenance space. Both ends of the maintenance space have installation ports. Two connecting frames are respectively covered at the two installation ports. The drum is connected to one of the connecting frames, and the free end of the limiting rope is connected to the other connecting frame. At least one set of protective wheels is provided on the inner protective frame. The set of protective wheels includes multiple first protective wheels arranged at intervals along the extension direction of the inner protective frame, and the multiple first protective wheels are oriented towards the clearance space. A fixing plate is fixedly connected to the surface of the outer protective frame.

[0007] Preferably, a support plate is fixedly connected to the surface of the outer protective frame, and a roller is rotatably connected to the surface of the support plate. One end of the support plate is connected to the outer protective frame, and the roller is connected to the other end of the support plate.

[0008] Preferably, each of the outer protective frame surfaces is fixedly connected with a mounting rod and a connecting rod. The two ends of the mounting rod are respectively connected to the outer protective frame through two connecting rods, and each end of the mounting rod is provided with a mounting ring. Each mounting ring has a plurality of spaced rollers connected to the side away from the outer protective frame.

[0009] Preferably, at least one guide wheel assembly is provided on the outer protective frame corresponding to the position of each connecting rod. The guide wheel assembly includes two guide wheels arranged at intervals, and a guide channel is formed between the two guide wheels for the connecting rod to pass through. The guide wheels and the connecting rod are in rolling contact. The main body of the suspended basket has mounting holes for limit components and fixing coating.

[0010] Preferably, the sealing mechanism includes a cylindrical body disposed inside an outer protective frame. Sealing plates are provided on both sides of the top of the cylindrical body. A first connecting column is fixedly connected to the top of each sealing plate. A support arm is rotatably connected to the surface of the first connecting column. A second connecting column is rotatably connected to the side of the support arm away from the first connecting column. A rotating disk is fixedly connected to the bottom of the second connecting column. An output shaft is fixedly connected to the bottom of the rotating disk. A first motor is fixedly connected to the bottom of the output shaft. A second positioning plate is fixedly connected to the surface of the first motor. The second positioning plate is fixedly connected to the surface of the inner protective frame.

[0011] Preferably, a first positioning plate is fixedly connected to the top of the closed plate, a sliding groove is provided in the first positioning plate, a crossbar is slidably connected in the sliding groove, a mounting bracket is fixedly connected to the surface of the crossbar, a housing is fixedly connected to one side of the mounting bracket, the cylinder is disposed in the housing, rectangular slots are provided on both sides of the housing, and the support arm passes through the rectangular slots.

[0012] Preferably, a fixing member is provided on both sides of the cylinder, a fixing rod is rotatably connected to one side of the fixing member, a torsion spring is sleeved on the surface of the fixing rod, the fixing rod is fixedly connected to the top of the shell, a support member is fixedly connected to the top of the fixing rod, and the support member is fixedly connected to the inner wall of the shell.

[0013] Preferably, the lifting mechanism includes a mounting plate, which is fixedly connected to the surface of the inner protective frame. A threaded rod is rotatably connected to the top of the mounting plate, and a second motor is fixedly connected to the top of the threaded rod. A sliding plate is threadedly connected to the surface of the threaded rod, and the housing is fixedly connected to the surface of the sliding plate.

[0014] Preferably, a horizontal plate is rotatably connected to the surface of the threaded rod, and the horizontal plate is fixedly connected to the top of the inner protective frame.

[0015] Another technical problem to be solved by the present invention is to provide a method for applying anti-icing coating to wind turbine blades, so as to solve the problems mentioned in the background art above;

[0016] To achieve the above objectives, the present invention provides the following technical solution, comprising the following steps:

[0017] S1. Preparation of the suspended platform

[0018] Select a suitable lifting point and pass the basket through the wind turbine blade.

[0019] S2. Spraying Preparation

[0020] Before construction, site preparation, ventilation, water and electricity preparation, equipment, materials preparation, and personnel preparation are carried out.

[0021] S3, Base Surface Rinse

[0022] The U-shaped suspended basket allows multiple people to use a high-pressure washer to rinse the blades with clean water, improving efficiency.

[0023] S4. Base surface drying

[0024] The leaves are manually dried by using absorbent cotton balls, then the remaining moisture is removed by blowing air, and finally they are allowed to air dry naturally.

[0025] S5, Primer Spraying

[0026] Before spraying, mix the primer, hardener and thinner thoroughly and let it mature before use; apply the primer to the blades by spraying, applying 2-4 coats of primer.

[0027] S6. Sprayed surface drying

[0028] The sprayed surface is dried by natural air drying.

[0029] S7, Topcoat Spraying

[0030] Topcoat spraying is carried out after the primer is sprayed and dried. DSAN paint is used for topcoat. The topcoat is shaken manually and sprayed on the blades using an air compressor as the air pressure power source. 4-6 coats of topcoat are sprayed, and the next coat can only be sprayed after the topcoat is surface dry.

[0031] S8. On-site inspection

[0032] Manually observe the leaf surface to see if it needs additional spraying and conduct a drip test.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. The wind turbine blade anti-icing coating application platform and spraying method: The "U"-shaped suspended platform allows construction personnel to spray simultaneously from multiple angles, significantly improving spraying efficiency and achieving spraying without blind spots, thereby improving the coating quality of the blades. It allows construction personnel to spray while the blades are installed, avoiding the wear caused by spraying before hoisting and reducing the time wasted waiting for the coating to cure, greatly shortening the construction period and significantly reducing construction costs. It also allows construction personnel to carry more coating, greatly reducing the time spent on repainting on the ground and improving construction efficiency. The "U"-shaped suspended platform is also equipped with a protective frame and limiting components, which greatly ensure the safety of construction personnel. In the event of a sudden descent, the limiting components will tighten significantly, thereby implementing emergency deceleration and ensuring the safety of construction personnel. The "U"-shaped suspended platform requires simple suspension points, making it easy to hang. It can not only be used for the application of anti-icing coatings but also play a significant role in routine inspection and maintenance.

[0035] 2. The wind turbine blade anti-icing coating application platform and spraying method, under the support of the support arm, can drive the closed plates on both sides to move closer to each other, thereby sealing the cylinder and ensuring the effect of the internal coating on the wind turbine blade. Under the action of the torsion spring, it can drive the fixing parts on both sides to clamp and fix the cylinder, preventing the cylinder from tipping over during the spraying of the wind turbine blade surface, which would cause the internal coating to flow out.

[0036] 3. The anti-icing coating application platform and spraying method for wind turbine blades can drive the sliding plate to move up and down during the rotation of the threaded rod, thereby achieving the purpose of adjusting the height of the cylinder and adapting to working environments at different heights. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the support mechanism of the present invention;

[0040] Figure 4 This is a schematic diagram of the closing mechanism of the present invention;

[0041] Figure 5 This is a schematic diagram of the enclosing mechanism of the present invention;

[0042] Figure 6 This is a slanted view of a portion of the closed mechanism structure of the present invention;

[0043] Figure 7 This is a schematic diagram of the lifting mechanism of the present invention.

[0044] In the diagram: 1. Suspended basket body; 2. Support mechanism; 21. Inner protective frame; 22. Outer protective frame; 23. Connecting frame; 24. Support plate; 25. Roller; 26. Connecting rod; 27. Mounting rod; 28. Fixing plate; 3. Enclosing mechanism; 31. Shell; 32. Rotating disc; 33. First positioning plate; 34. Fixing component; 35. Second positioning plate; 36. Crossbar; 37. Mounting frame; 38. Fixing rod; 39. Support arm; 301. Enclosing plate; 302. First connecting column; 303. Second connecting column; 304. First motor; 305. Supporting component; 306. Torsion spring; 307. Cylinder; 4. Lifting mechanism; 41. Threaded rod; 42. Second motor; 43. Crossbar; 44. Sliding plate; 45. Mounting plate. Detailed Implementation

[0045] 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.

[0046] Please see Figure 1-7The present invention provides a technical solution: a wind turbine blade anti-icing coating construction platform, including a suspended basket body 1, a support mechanism 2 is provided on the top of the suspended basket body 1, a lifting mechanism 4 is provided on the surface of the support mechanism 2, and a closing mechanism 3 is provided on the surface of the lifting mechanism 4.

[0047] The support mechanism 2 includes an outer protective frame 22, which is fixedly connected to the top of the maintenance platform. An inner protective frame 21 is installed inside the outer protective frame 22. Both the inner and outer protective frames 21 and 22 are closed ring structures, and are arranged at intervals from the inside to the outside. The inner and outer protective frames 21 and 22, along with the maintenance platform, form a maintenance space. Both ends of the maintenance space have installation ports. Two connecting frames 23 are respectively installed over the two installation ports. A drum is connected to one of the connecting frames 23, and the free end of the limiting rope is connected to the other connecting frame 23. At least one set of protective wheels is provided on the inner protective frame 21. The set of protective wheels includes multiple first protective wheels arranged at intervals along the extension direction of the inner protective frame 21, and these first protective wheels are oriented towards the clearance space. A support plate 24 is fixedly connected to the surface of the outer protective frame 22. Rollers 25 are rotatably connected to the surface of the outer protective frame 22. One end of the support plate 24 is connected to the outer protective frame 22, and the rollers 25 are connected to the other end of the support plate 24. Mounting rods 27 and connecting rods 26 are fixedly connected to the surface of the outer protective frame 22. The two ends of the mounting rods 27 are connected to the outer protective frame 22 through two connecting rods 26 respectively. Each end of the mounting rods 27 is provided with a mounting ring. Each mounting ring is connected to a plurality of spaced rollers 25 on the side away from the outer protective frame 22. At least one guide wheel set is provided on the outer protective frame 22 corresponding to the position of each connecting rod 26. The guide wheel set includes two spaced guide wheels. A guide channel for the connecting rod 26 to pass through is formed between the two guide wheels. The guide wheels and the connecting rods 26 are in rolling contact. The main body 1 of the suspended basket has holes for the placement of limit components and fixing paint. A fixing plate 28 is fixedly connected to the surface of the outer protective frame 22.

[0048] The sealing mechanism 3 includes a cylindrical body 307, which is disposed inside the outer protective frame 22. Sealing plates 301 are provided on both sides of the top of the cylindrical body 307. A first connecting column 302 is fixedly connected to the top of the sealing plate 301. A support arm 39 is rotatably connected to the surface of the first connecting column 302. A second connecting column 303 is rotatably connected to the side of the support arm 39 away from the first connecting column 302. A rotating disk 32 is fixedly connected to the bottom of the second connecting column 303. An output shaft is fixedly connected to the bottom of the rotating disk 32. A first motor 304 is fixedly connected to the bottom of the output shaft. A second positioning plate 35 is fixedly connected to the surface of the first motor 304 and is fixedly connected to the surface of the inner protective frame 21. A first positioning plate 33 is fixedly connected to the top of plate 301. A sliding groove is provided in the first positioning plate 33. A crossbar 36 is slidably connected in the sliding groove. A mounting bracket 37 is fixedly connected to the surface of the crossbar 36. A housing 31 is fixedly connected to one side of the mounting bracket 37. A cylinder 307 is set inside the housing 31. Rectangular slots are provided on both sides of the housing 31. A support arm 39 passes through the rectangular slots. Fixing members 34 are provided on both sides of the cylinder 307. A fixing rod 38 is rotatably connected to one side of the fixing member 34. A torsion spring 306 is sleeved on the surface of the fixing rod 38. The fixing rod 38 is fixedly connected to the top of the housing 31. A support member 305 is fixedly connected to the top of the fixing rod 38. The support member 305 is fixedly connected to the inner wall of the housing 31.

[0049] The lifting mechanism 4 includes a mounting plate 45, which is fixedly connected to the surface of the inner protective frame 21. A threaded rod 41 is rotatably connected to the top of the mounting plate 45. A second motor 42 is fixedly connected to the top of the threaded rod 41. A sliding plate 44 is threadedly connected to the surface of the threaded rod 41. The housing 31 is fixedly connected to the surface of the sliding plate 44. A horizontal plate 43 is rotatably connected to the surface of the threaded rod 41. The horizontal plate 43 is fixedly connected to the top of the inner protective frame 21.

[0050] This invention provides a platform for applying anti-icing coating to wind turbine blades and a spraying method to address another technical problem, comprising the following steps:

[0051] S1. Preparation of the suspended platform

[0052] Select a suitable lifting point and pass the basket through the wind turbine blade.

[0053] S2. Spraying Preparation

[0054] Before construction, site preparation, ventilation, water and electricity preparation, equipment, materials preparation, and personnel preparation are carried out.

[0055] S3, Base Surface Rinse

[0056] The U-shaped suspended basket allows multiple people to use a high-pressure washer to rinse the blades with clean water, improving efficiency.

[0057] S4. Base surface drying

[0058] The leaves are manually dried by using absorbent cotton balls, then the remaining moisture is removed by blowing air, and finally they are allowed to air dry naturally.

[0059] S5, Primer Spraying

[0060] Before spraying, mix the primer, hardener and thinner thoroughly and let it mature before use; apply the primer to the blades by spraying, applying 2-4 coats of primer.

[0061] S6. Sprayed surface drying

[0062] The sprayed surface is dried by natural air drying.

[0063] S7, Topcoat Spraying

[0064] Topcoat spraying is carried out after the primer is sprayed and dried. DSAN paint is used for topcoat. The topcoat is shaken manually and sprayed on the blades using an air compressor as the air pressure power source. 4-6 coats of topcoat are sprayed, and the next coat can only be sprayed after the topcoat is surface dry.

[0065] S8. On-site inspection

[0066] Manually observe the leaf surface to see if it needs additional spraying and conduct a drip test.

[0067] In actual operation, when the device is used, the main body 1 of the suspended platform is first passed through the wind turbine blade by selecting a suitable lifting point. Before construction, site preparation, water and electricity preparation, equipment and materials preparation, and personnel preparation are carried out. The "U"-shaped main body 1 allows multiple people to use a high-pressure washer to rinse the blade with clean water, improving efficiency. Then, the water on the blade surface is manually removed by using absorbent cotton balls, followed by wind blowing to remove residual water on the blade surface, and finally, natural air drying is performed. Before spraying, the primer, hardener, and diluent are prepared. Mix the agents thoroughly and stir evenly, let it stand to mature before use; apply the primer to the blades by spraying, 2-4 coats of primer, and allow the sprayed surface to dry naturally. Apply the topcoat after the primer is applied and dried. Use DSAN paint for the topcoat. Shake the topcoat manually and use an air compressor as the air pressure power source to spray the topcoat onto the blades. Apply the topcoat 4-6 coats, and wait for the topcoat to dry completely before applying the next coat. Manually observe the blade surface to see if any touch-up spraying is needed and perform a water drop test.

[0068] When the cylinder 307 needs to be placed, the two fixing members 34 on both sides can be rotated in opposite directions. Then, the cylinder 307 is placed inside the housing 31. At this time, the cylinder 307 is between the two fixing members 34. Under the action of the torsion spring 306, the two fixing members 34 can be driven to clamp and fix the cylinder 307, preventing the cylinder 307 from tipping over during the spraying of the wind turbine blade surface, which would cause the paint inside to flow out. When the height of the cylinder 307 needs to be adjusted, the second motor 42 can be started. The second motor 42 drives the threaded rod 41 to adjust the height. During the rotation of the threaded rod 41, the sliding plate 44 can be driven to move up and down, thereby achieving the purpose of adjusting the height of the cylinder 307 and adapting to different working environments. In order to prevent external impurities from being mixed into the coating after stirring inside the cylinder 307, the first motors 304 on both sides can be started. The first motors 304 can drive the rotating disks 32 on both sides to rotate. Under the support of the support arm 39, the closing plates 301 on both sides can be driven to move towards each other, thereby sealing the cylinder 307 and ensuring the effect of the coating on the wind turbine blades.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are 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 process, method, article, or apparatus.

[0070] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind turbine blade de-icing coating application platform comprising a basket body (1), characterized in that: The basket body (1) is provided with a support mechanism (2) on the top, the surface of the support mechanism (2) is provided with a lifting mechanism (4), and the surface of the lifting mechanism (4) is provided with a sealing mechanism (3); The support mechanism (2) comprises an outer protective frame (22) fixedly connected to the top of the inspection table, an inner protective frame (21) arranged in the outer protective frame (22), the inner protective frame (21) and the outer protective frame (22) are both in a closed annular structure, and the inner protective frame (21) and the outer protective frame (22) are arranged from inside to outside, a maintenance space is formed between the inner protective frame (21), the outer protective frame (22) and the inspection table, both ends of the maintenance space are provided with mounting ports, two connecting frames (23) are respectively arranged at the two mounting ports, a winding drum is connected to one of the connecting frames (23), and a free end of a limiting rope is connected to the other connecting frame (23), at least one protective wheel set is arranged on the inner protective frame (21), the protective wheel set comprises a plurality of first protective wheels arranged at intervals along the extension direction of the inner protective frame (21), and the plurality of first protective wheels are arranged towards the avoiding space, and the outer protective frame (22) is fixedly connected with a fixed plate (28) on the surface. The sealing mechanism (3) comprises a cylinder (307), the cylinder (307) is arranged in the outer protective frame (22), both sides of the top of the cylinder (307) are provided with sealing plates (301), the top of each sealing plate (301) is fixedly connected with a first connecting column (302), the surface of the first connecting column (302) is rotatably connected with a support arm (39), the side, away from the first connecting column (302), of the support arm (39) is rotatably connected with a second connecting column (303), the bottom of the second connecting column (303) is fixedly connected with a rotating disc (32), the bottom of the rotating disc (32) is fixedly connected with an output shaft, the bottom of the output shaft is fixedly connected with a first motor (304), the surface of the first motor (304) is fixedly connected with a second positioning plate (35), and the second positioning plate (35) is fixedly connected to the surface of the inner protective frame (21); The top of each sealing plate (301) is fixedly connected with a first positioning plate (33), a sliding groove is formed in the first positioning plate (33), a cross rod (36) is slidably connected in the sliding groove, the surface of the cross rod (36) is fixedly connected with a mounting frame (37), one side of the mounting frame (37) is fixedly connected with a shell (31), the cylinder (307) is arranged in the shell (31), and a rectangular groove is formed in each side of the shell (31), and the support arm (39) penetrates through the rectangular groove.

2. The wind turbine blade de-icing coating application platform of claim 1, wherein: The surface of the outer protective frame (22) is fixedly connected with a support plate (24), the surface of the support plate (24) is rotatably connected with a roller (25), one end of the support plate (24) is connected with the outer protective frame (22), and the roller (25) is connected to the other end of the support plate (24).

3. The wind turbine blade de-icing coating application platform of claim 2, wherein: The outer protection frame (22) surface is fixedly connected with mounting rod (27) and connecting rod (26), the both ends of mounting rod (27) are connected with outer protection frame (22) through two connecting rods (26), and the both ends of mounting rod (27) are provided with an installation ring, the side of each installation ring away from outer protection frame (22) is connected with a plurality of interval arrangement of the roller (25).

4. The wind turbine blade de-icing coating application platform of claim 3, wherein: The outer protection frame (22) is provided with at least one guide wheel group corresponding to each connecting rod (26), the guide wheel group includes two interval arrangement guide wheels, the guide channel is formed between the two guide wheels for the connecting rod (26) to pass through, and the guide wheel is in rolling contact with the connecting rod (26), the limit assembly and the fixed coating placement hole are arranged on the basket body (1).

5. A wind turbine blade de-icing coating application platform according to claim 4, characterised in that: The both sides of the barrel (307) are provided with a fixing piece (34), one side of the fixing piece (34) is rotatably connected with a fixing rod (38), the surface of the fixing rod (38) is sleeved with a torsional spring (306), the fixing rod (38) is fixedly connected to the top of the shell (31), and the top of the fixing rod (38) is fixedly connected with a supporting piece (305), and the supporting piece (305) is fixedly connected to the inner wall of the shell (31).

6. The wind turbine blade de-icing coating application platform of claim 1, wherein: The lifting mechanism (4) includes a mounting plate (45), the mounting plate (45) is fixedly connected to the surface of the inner protection frame (21), the top of the mounting plate (45) is rotatably connected with a threaded rod (41), the top of the threaded rod (41) is fixedly connected with a second motor (42), the surface of the threaded rod (41) is threadedly connected with a sliding plate (44), and the shell (31) is fixedly connected to the surface of the sliding plate (44).

7. A wind turbine blade de-icing coating application platform according to claim 6, characterised in that: The surface of the threaded rod (41) is rotatably connected with a horizontal plate (43), and the horizontal plate (43) is fixedly connected to the top of the inner protection frame (21).

8. The construction spraying method of a wind turbine blade de-icing coating construction platform according to claim 1, characterized in that, The method comprises the following steps: S1, basket preparation Select the appropriate lifting point, pass the basket through the wind turbine blade; S2, spray preparation Before construction, carry out site preparation, wind and water preparation, equipment and tool material preparation and personnel preparation; S3, base flushing Through the "hui" type basket, multiple people can use high pressure washer to clean the blade, which improves the efficiency; S4, base drying By using water-absorbing cotton ball to remove water on the surface of the blade, then using wind to blow and remove residual water on the surface of the blade, and finally natural drying; S5, primer spraying Mix the primer material, curing agent and thinner before spraying, and stir well; use spraying form to spray primer on the blade, and spray primer 2-4 times; S6, spray drying Use natural drying method to dry the sprayed surface; S7, topcoat spraying After the primer spraying is completed and dried, the topcoat spraying is carried out, the topcoat is DSAN paint, the topcoat is shaken manually, the air compressor is used as air pressure power source, and the topcoat is sprayed on the blade, the topcoat is sprayed 4-6 times, and the next time spraying can be carried out only after the topcoat is dried; S8, on-site inspection Artificial observation of whether the blade surface needs to be supplemented and drop test.

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