Wind driven generator blade anti-icing coating construction platform and spraying method

Abstract

The invention belongs to the technical field of coating, and particularly relates to a wind driven generator blade anti-icing coating construction platform which comprises a hanging basket body, a supporting mechanism is arranged at the top of the hanging basket 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. According to the anti-icing coating construction platform for the wind driven generator blade and the spraying method, the concentric-square-shaped hanging basket can enable a constructor to realize multi-angle simultaneous spraying, the spraying efficiency can be greatly improved, and no-dead-angle spraying is realized, so that the spraying quality of the blade is improved, the constructor can spray under the condition that the blade is mounted, and the construction efficiency is improved. According to the invention, the wear caused by hoisting after spraying is avoided, the time delayed by waiting for the curing of the coating is reduced, the construction period is greatly shortened, the construction cost is greatly reduced, a constructor can carry more coating, and the time for the constructor to go to the ground to supplement the coating can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of spraying technology, and in particular to a construction platform and a spraying method for an anti-icing coating for a blade of a wind turbine generator. Background Art

[0002] In the field of wind power generation, wind turbine blade anti-icing is an important technical background. With the widespread application of wind power generation, blades are prone to ice under low temperature, high humidity and other environmental conditions, which will increase the weight of the blades and reduce the aerodynamic performance, thereby affecting the efficiency and safety of the wind turbine. Therefore, the development of effective anti-icing technology is of great significance to ensure the normal operation of wind power generation systems and improve power generation efficiency. Deicing methods are generally divided into passive deicing and active deicing. Passive deicing mainly includes manual equipment removal and snow melting agent spraying, but it is time-consuming and labor-intensive, and the scope of application is limited. Active deicing mainly includes thermal deicing, adding anti-icing materials, and anti-icing surface coatings. Among them, the use of surface coatings to prevent ice has great advantages in terms of scope of application and construction cost. The principle of using coatings to prevent ice is generally to reduce the contact area between water and the substrate, so that the effective heat transfer area for water to condense into ice is reduced to release heat, or by reducing the adhesion between water and ice and the coating surface, so that water and ice are easy to slide under the action of external forces. At present, most of the existing wind farms use the method of spraying anti-icing coating on blades first, and then assembling the blades to the wind turbine.

[0003] According to the current construction method, taking a complete blade as an example, after spraying one side of the blade on the ground, it is necessary to wait until the paint is completely dry before turning it over with a crane to spray the other side, which greatly reduces the construction efficiency and increases the construction cost. In addition, during the process of lifting and transporting the blade, the paint surface will be worn, affecting the final performance of the finished product. Furthermore, this spraying construction plan cannot meet the spraying construction treatment of wind turbine blades in the existing market (operating). Summary of the invention

[0004] The object of the present invention is to provide a wind turbine blade anti-icing coating construction platform and a spraying method to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a wind turbine blade anti-icing coating construction platform, comprising a hanging basket main body, 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 closing mechanism is arranged on the surface of the lifting mechanism.

[0006] The supporting mechanism includes an outer protective frame, which is fixedly connected to the top of the inspection platform, an inner protective frame is arranged inside the outer protective frame, the inner protective frame and the outer protective frame are both closed annular structures, and the inner protective frame and the outer protective frame are arranged at intervals from the inside to the outside, and the inner protective frame, the outer protective frame and the inspection platform form an inspection space, both ends of the inspection space have installation openings, two connecting frames are respectively covered at the two installation openings, 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, and at least one protection wheel group is arranged on the inner protective frame, and the protection wheel group includes a plurality of first protection wheels arranged at intervals along the extension direction of the inner protective frame, and the plurality of first protection wheels are arranged toward the avoidance space, and 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, 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, a mounting rod and a connecting rod are fixedly connected to the surface of the outer protective frame, and both ends of the mounting rod are respectively connected to the outer protective frame through two connecting rods, and a mounting ring is provided at both ends of the mounting rod, and a plurality of rollers arranged at intervals are connected to the side of each mounting ring facing away from the outer protective frame.

[0009] Preferably, at least one guide wheel group is provided on the outer protective frame at a position corresponding to each of the connecting rods, and the guide wheel group includes two guide wheels arranged at intervals, a guide channel for the connecting rod to pass through is formed between the two guide wheels, and the guide wheels are in rolling contact with the connecting rods, and the hanging basket body is provided with a limit assembly and a placement hole for fixing the paint.

[0010] Preferably, the closing mechanism includes a cylinder, which is arranged in an outer protective frame, and closing plates are arranged on both sides of the top of the cylinder, a first connecting column is fixedly connected to the top of the closing 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, and 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 closing plate, a sliding groove is opened in the first positioning plate, a cross bar is slidably connected in the sliding groove, a mounting frame is fixedly connected to the surface of the cross bar, a shell is fixedly connected to one side of the mounting frame, the cylinder is arranged in the shell, rectangular grooves are opened on both sides of the shell, and the support arm passes through the rectangular groove.

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

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

[0014] Preferably, a transverse plate is rotatably connected to the surface of the threaded rod, and the transverse 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 spraying an anti-icing coating on a wind turbine blade to solve the problems raised in the above background technology; To achieve the above purpose, the present invention provides the following technical solution: comprising the following steps: S1. Preparation of hanging basket Select a suitable hanging point and pass the hanging basket through the wind turbine blades.

[0016] S2. Spraying preparation Before construction, site preparation, water, electricity preparation, equipment, materials preparation and personnel preparation should be carried out.

[0017] S3, base surface washing Through the "U"-shaped hanging basket, multiple people can use a high-pressure cleaning machine to clean the blades with clean water, thereby improving efficiency.

[0018] S4, base surface dry The moisture on the leaf surface is manually removed by using absorbent cotton balls, and then the residual moisture on the leaf surface is removed by wind blowing, and finally the leaves are naturally dried.

[0019] S5, Primer spraying Before spraying, mix the primer material, curing agent and diluent and stir them thoroughly. Let them stand for maturation before use. Spray the primer on the blades 2-4 times.

[0020] S6. Drying of sprayed surface The sprayed surface is dried by natural air drying.

[0021] S7, topcoat spraying The topcoat is sprayed after the primer is sprayed and dried. The topcoat uses DSAN paint, and the topcoat is shaken manually. An air compressor is used as the air pressure power source to spray the topcoat on the blades. The topcoat is sprayed 4-6 times and during the spraying process, it is necessary to wait for the topcoat to dry before spraying the next coat.

[0022] S8. On-site inspection Manually observe whether the blade surface needs additional spraying and drip test.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. The wind turbine blade anti-icing coating construction platform and spraying method, the "U"-shaped hanging basket allows construction workers to spray at multiple angles at the same time, which can greatly improve the spraying efficiency and achieve spraying without dead angles, thereby improving the spraying quality of the blades. Construction workers can spray when the blades are installed, avoiding the wear and tear caused by spraying first and then hoisting, and reducing the time wasted waiting for the coating to solidify, greatly shortening the construction period, greatly reducing the construction cost, allowing construction workers to carry more coatings, which can greatly reduce the time for construction workers to replenish coatings on the ground and improve construction efficiency. The "U"-shaped hanging basket is also equipped with a protective frame and a limit assembly, which can greatly ensure the safety of construction workers. When facing a sudden landing, the limit assembly will be greatly tightened, thereby implementing an emergency deceleration to ensure the safety of construction workers. The "U"-shaped hanging basket requires simple hanging points and is easy to hang. It can not only be used for the construction of anti-icing coatings, but also play a significant role in daily inspection and maintenance.

[0024] 2. The anti-icing coating construction platform and spraying method for wind turbine blades can drive the closing plates on both sides to move towards each other under the support formed by the support arm, so as to achieve the closure of the cylinder and ensure the effect of spraying the internal coating on the wind turbine blades. Moreover, under the action of the torsion spring, the fixing parts on both sides can be driven to clamp and fix the cylinder to avoid the cylinder from tipping over during the spraying process on the surface of the wind turbine blades, which would cause the internal coating to flow out.

[0025] 3. The wind turbine blade anti-icing coating construction platform and spraying method 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the support mechanism of the present invention; Figure 4 It is a schematic diagram of the closing mechanism of the present invention; Figure 5 It is a partial structural schematic diagram of the closing mechanism of the present invention; Figure 6 It is a partial oblique view of the structure of the closing mechanism of the present invention; Figure 7 It is a schematic diagram of the lifting mechanism of the present invention.

[0027] In the figure: 1. hanging basket body; 2. supporting mechanism; 21. inner protection frame; 22. outer protection frame; 23. connecting frame; 24. supporting plate; 25. roller; 26. connecting rod; 27. mounting rod; 28. fixing plate; 3. closing mechanism; 31. shell; 32. rotating disk; 33. first positioning plate; 34. fixing member; 35. second positioning plate; 36. cross bar; 37. mounting frame; 38. fixing rod; 39. supporting arm; 301. closing plate; 302. first connecting column; 303. second connecting column; 304. first motor; 305. supporting member; 306. torsion spring; 307. cylinder; 4. lifting mechanism; 41. threaded rod; 42. second motor; 43. cross plate; 44. sliding plate; 45. mounting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7 The present invention provides a technical solution: a wind turbine blade anti-icing coating construction platform, comprising a hanging basket body 1, a supporting mechanism 2 is arranged on the top of the hanging basket body 1, a lifting mechanism 4 is arranged on the surface of the supporting mechanism 2, and a closing mechanism 3 is arranged on the surface of the lifting mechanism 4.

[0030] 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 arranged inside the outer protective frame 22. The inner protective frame 21 and the outer protective frame 22 are both closed annular structures, and the inner protective frame 21 and the outer protective frame 22 are arranged at intervals from the inside to the outside. A maintenance space is surrounded by the inner protective frame 21, the outer protective frame 22 and the maintenance platform. Both ends of the maintenance space have installation openings, and two connecting frames 23 are respectively covered at the two installation openings. The 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 protection wheel group is arranged on the inner protective frame 21, and the protection wheel group includes a plurality of first protection wheels arranged at intervals along the extension direction of the inner protective frame 21, and the plurality of first protection wheels are arranged toward the avoidance space. A support plate 24 is fixedly connected to the surface of the outer protective frame 22, and the support plate 24 The surface is rotatably connected with a roller 25, one end of the support plate 24 is connected to the outer protective frame 22, and the roller 25 is connected to the other end of the support plate 24. The surface of the outer protective frame 22 is fixedly connected with a mounting rod 27 and a connecting rod 26. The two ends of the mounting rod 27 are respectively connected to the outer protective frame 22 through two connecting rods 26, and a mounting ring is provided at both ends of the mounting rod 27. A plurality of rollers 25 arranged at intervals are connected to the side of each mounting ring away from the outer protective frame 22. At least one guide wheel group is provided on the position of the outer protective frame 22 corresponding to each connecting rod 26. The guide wheel group includes two guide wheels arranged at intervals, and a guide channel for the connecting rod 26 to pass through is formed between the two guide wheels, and the guide wheel and the connecting rod 26 are in rolling contact and cooperation. There are limit components and placement holes for fixing the paint on the hanging basket body 1, and a fixing plate 28 is fixedly connected to the surface of the outer protective frame 22.

[0031] The closing mechanism 3 includes a cylinder 307, which is arranged in the outer protective frame 22, and closing plates 301 are arranged on both sides of the top of the cylinder 307. The top of the closing plate 301 is fixedly connected to a first connecting column 302, and the surface of the first connecting column 302 is rotatably connected to a support arm 39, and the side of the support arm 39 away from the first connecting column 302 is rotatably connected to a second connecting column 303, and the bottom of the second connecting column 303 is fixedly connected to a rotating disk 32, and the bottom of the rotating disk 32 is fixedly connected to an output shaft, and the bottom of the output shaft is fixedly connected to a first motor 304, and the surface of the first motor 304 is fixedly connected to a second positioning plate 35, and the second positioning plate 35 is fixedly connected to the surface of the inner protective frame 21, and the closing mechanism 3 includes a cylinder 307, and a cylinder 307 is provided on both sides of the top of the cylinder 307. A first positioning plate 33 is fixedly connected to the top of the plate 301, a sliding groove is provided in the first positioning plate 33, a cross bar 36 is slidably connected in the sliding groove, a mounting bracket 37 is fixedly connected to the surface of the cross bar 36, one side of the mounting bracket 37 is fixedly connected to the shell 31, a cylinder 307 is arranged in the shell 31, rectangular grooves are provided on both sides of the shell 31, a support arm 39 passes through the rectangular grooves, fixing parts 34 are provided on both sides of the cylinder 307, a fixing rod 38 is rotatably connected to one side of the fixing part 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 shell 31, a support member 305 is fixedly connected to the top of the fixing rod 38, and the support member 305 is fixedly connected to the inner wall of the shell 31.

[0032] 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 shell 31 is fixedly connected to the surface of the sliding plate 44, a cross plate 43 is rotatably connected to the surface of the threaded rod 41, and the cross plate 43 is fixedly connected to the top of the inner protective frame 21.

[0033] Another technical problem to be solved by the present invention is to provide a wind turbine blade anti-icing coating construction platform and a spraying method, comprising the following steps: S1. Preparation of hanging basket Select a suitable hanging point and pass the hanging basket through the wind turbine blades.

[0034] S2. Spraying preparation Before construction, site preparation, water, electricity preparation, equipment, materials preparation and personnel preparation should be carried out.

[0035] S3, base surface washing Through the "U"-shaped hanging basket, multiple people can use a high-pressure cleaning machine to clean the blades with clean water, thereby improving efficiency.

[0036] S4, base surface dry The moisture on the leaf surface is manually removed by using absorbent cotton balls, and then the residual moisture on the leaf surface is removed by wind blowing, and finally the leaves are naturally dried.

[0037] S5, Primer spraying Before spraying, mix the primer material, curing agent and diluent and stir them thoroughly. Let them stand for maturation before use. Spray the primer on the blades 2-4 times.

[0038] S6. Drying of sprayed surface The sprayed surface is dried by natural air drying.

[0039] S7, topcoat spraying The topcoat is sprayed after the primer is sprayed and dried. The topcoat uses DSAN paint, and the topcoat is shaken manually. An air compressor is used as the air pressure power source to spray the topcoat on the blades. The topcoat is sprayed 4-6 times and during the spraying process, it is necessary to wait for the topcoat to dry before spraying the next coat.

[0040] S8. On-site inspection Manually observe whether the blade surface needs additional spraying and drip test.

[0041] In the actual operation process, when the device is used, firstly, by selecting a suitable hanging point, the hanging basket body 1 is passed through the wind turbine blades. Before construction, site preparation, wind, water and electricity preparation, equipment, materials and personnel preparation are carried out. Through the "U"-shaped hanging basket body 1, multiple people can use a high-pressure washer to wash the blades with clean water to improve efficiency. Then, absorbent cotton balls are used to manually remove moisture from the blade surface, and then wind is used to blow away residual moisture on the blade surface. Finally, it is naturally air-dried. Before spraying, the primer material, curing agent and dilution are mixed together. The agent is mixed and stirred evenly, and then used after being allowed to mature. The primer is sprayed on the blades in the form of spraying. The primer is sprayed 2-4 times, and the sprayed surface is dried by natural air drying. The topcoat is sprayed after the primer is sprayed and dried. The topcoat is DSAN paint, and the topcoat is manually shaken. The air compressor is used as the air pressure power source to spray the topcoat on the blades. The topcoat is sprayed 4-6 times and the next spray can be applied only after the topcoat is dry. The blade surface is manually observed to see if it needs to be re-sprayed and a drip test is performed. When it is necessary to place the cylinder 307, the fixing members 34 on both sides can be rotated in opposite directions, and then the cylinder 307 can be placed inside the shell 31. At this time, the cylinder 307 is between the fixing members 34 on both sides. Under the action of the torsion spring 306, the fixing members 34 on both sides can be driven to clamp and fix the cylinder 307, so as to avoid the cylinder 307 from tipping over during the spraying of the surface of the wind turbine blade, resulting in the phenomenon of the internal paint flowing out. When it is necessary to adjust the height of the cylinder 307, the second motor 42 can be started, and the second motor 42 drives the threaded rod 41 to adjust the height of the cylinder 307. Rotation. During the rotation of the threaded rod 41, the sliding plate 44 can be driven to move up and down, so as to achieve the purpose of adjusting the height of the cylinder 307 and adapt to working environments at different heights. In order to avoid the mixing of external impurities into the paint after stirring inside the cylinder 307, the first motor 304 on both sides can be started. The first motor 304 can drive the rotating disks 32 on both sides to rotate. Under the support formed by the support arm 39, the closing plates 301 on both sides can be driven to move towards each other, so as to achieve the closure of the cylinder 307 and ensure the effect of internal paint spraying on the wind turbine blades.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind turbine blade anti-icing coating construction platform, comprising a hanging basket body (1), characterized in that: A support mechanism (2) is provided on the top of the hanging 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); The support mechanism (2) comprises an outer protective frame (22), the outer protective frame (22) is fixedly connected to the top of the maintenance platform, an inner protective frame (21) is arranged inside 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 the inside to the outside, and the maintenance space is surrounded by the inner protective frame (21), the outer protective frame (22) and the maintenance platform, and both ends of the maintenance space have installation openings. The two connecting frames (23) are respectively covered at the two installation openings, the reel is connected to one of the connecting frames (23), the free end of the limiting rope is connected to the other connecting frame (23), at least one protection wheel group is arranged on the inner protection frame (21), the protection wheel group includes a plurality of first protection wheels arranged at intervals along the extension direction of the inner protection frame (21), and the plurality of first protection wheels are arranged toward the avoidance space, and a fixing plate (28) is fixedly connected to the surface of the outer protection frame (22).

2. The wind turbine blade anti-icing coating construction platform according to claim 1, characterized in that: A support plate (24) is fixedly connected to the surface of the outer protective frame (22), a roller (25) is rotatably connected to the surface of the support plate (24), one end of the support plate (24) is connected to 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 anti-icing coating construction platform and spraying method according to claim 2, characterized in that: The surface of the outer protective frame (22) is fixedly connected with a mounting rod (27) and a connecting rod (26), and the two ends of the mounting rod (27) are respectively connected to the outer protective frame (22) through two connecting rods (26), and a mounting ring is provided at both ends of the mounting rod (27), and a plurality of rollers (25) arranged at intervals are connected to the side of each mounting ring facing away from the outer protective frame (22).

4. The wind turbine blade anti-icing coating construction platform according to claim 3 is characterized by: At least one guide wheel group is provided on the outer protective frame (22) at a position corresponding to each of the connecting rods (26), the guide wheel group comprising two guide wheels arranged at intervals, a guide channel for the connecting rod (26) to pass through is formed between the two guide wheels, and the guide wheel and the connecting rod (26) are in rolling contact cooperation, and a limit assembly and a placement hole for fixing the paint are provided on the hanging basket body (1).

5. The wind turbine blade anti-icing coating construction platform according to claim 1, characterized in that: The sealing mechanism (3) comprises a cylinder (307), wherein the cylinder (307) is arranged in the outer protective frame (22), and sealing plates (301) are arranged on both sides of the top of the cylinder (307), and a first connecting column (302) is fixedly connected to the top of the sealing plate (301), and a support arm (39) is rotatably connected to the surface of the first connecting column (302), and a second connecting column (303) is rotatably connected to the side of the support arm (39) away from the first connecting column (302), and a rotating disk (32) is fixedly connected to the bottom of the second connecting column (303), and an output shaft is fixedly connected to the bottom of the rotating disk (32), and a first motor (304) is fixedly connected to the bottom of the output shaft, and a second positioning plate (35) is fixedly connected to the surface of the first motor (304), and the second positioning plate (35) is fixedly connected to the surface of the inner protective frame (21).

6. The wind turbine blade anti-icing coating construction platform according to claim 5, characterized in that: The top of the closing plate (301) is fixedly connected to a first positioning plate (33), a sliding groove is provided in the first positioning plate (33), a cross bar (36) is slidably connected in the sliding groove, a mounting frame (37) is fixedly connected to the surface of the cross bar (36), one side of the mounting frame (37) is fixedly connected to a shell (31), the cylinder (307) is arranged in the shell (31), both sides of the shell (31) are provided with rectangular grooves, and the support arm (39) passes through the rectangular grooves.

7. The wind turbine blade anti-icing coating construction platform according to claim 5, characterized in that: Fixing members (34) are provided on both sides of the cylinder (307); one side of the fixing member (34) is rotatably connected to a fixing rod (38); 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 shell (31); the top of the fixing rod (38) is fixedly connected to a supporting member (305); and the supporting member (305) is fixedly connected to the inner wall of the shell (31).

8. The wind turbine blade anti-icing coating construction platform according to claim 1, characterized in that: The lifting mechanism (4) comprises a mounting plate (45), the mounting plate (45) being fixedly connected to the surface of the inner protective frame (21), the top of the mounting plate (45) being rotatably connected to a threaded rod (41), the top of the threaded rod (41) being fixedly connected to a second motor (42), the surface of the threaded rod (41) being threadedly connected to a sliding plate (44), and the housing (31) being fixedly connected to the surface of the sliding plate (44).

9. The wind turbine blade anti-icing coating construction platform according to claim 8, characterized in that: A transverse plate (43) is rotatably connected to the surface of the threaded rod (41), and the transverse plate (43) is fixedly connected to the top of the inner protection frame (21).

10. A method for spraying anti-icing coating on wind turbine blades, characterized in that: The following steps are involved: S1. Preparation of hanging basket Select a suitable hanging point and pass the hanging basket through the wind turbine blades; S2. Spraying preparation Before construction, site preparation, water and electricity preparation, equipment, materials and personnel preparation should be carried out; S3, base surface washing Through the "U"-shaped hanging basket, multiple people can use a high-pressure washer to clean the blades with clean water, improving efficiency; S4, base surface dry The moisture on the leaf surface was removed manually by using absorbent cotton balls, and then the residual moisture on the leaf surface was removed by wind blowing, and finally the leaves were dried naturally; S5, Primer spraying Before spraying, mix the primer material, curing agent and diluent and stir them evenly. Let them stand for aging before use. Spray the primer on the blades 2-4 times. S6. Drying of sprayed surface Use natural air drying method to dry the sprayed surface; S7, topcoat spraying The topcoat is sprayed after the primer is sprayed and dried. The topcoat is DSAN paint. The topcoat is manually shaken and the air compressor is used as the air pressure power source to spray the topcoat on the blades. The topcoat is sprayed 4-6 times and the next coat can be sprayed only after the topcoat is dry. S8. On-site inspection Manually observe whether the blade surface needs additional spraying and drip test.

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