A high-altitude painting device for a wind turbine tower

Abstract

The present invention discloses a high-altitude painting device for a wind turbine tower barrel, which includes a lifting platform that can move up and down along the tower barrel and a painting unit fixedly connected to the lower surface of the lifting platform; the painting unit includes a horizontal fourth table board, a template close to the tower barrel, and an electric paint sprayer arranged on the fourth table board; the fourth table board is in clearance fit with the tower barrel, the fourth table board is fixedly connected to the lifting platform, the template is detachably connected to the fourth table board, the template is provided with a hollowed-out graphic logo, and the nozzle of the electric paint sprayer is located on the side of the template away from the tower barrel. The lifting platform drives the painting unit to move along the tower barrel, thereby replacing manual climbing, so that no personnel falling accidents will occur, and at the same time, the painting efficiency is also improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine tower maintenance, and in particular to a high-altitude painting device for a wind turbine tower. Background Art

[0002] The painting on the outer wall of the wind turbine tower can not only increase the beauty of the wind turbine, but also mark the wind turbine. At present, many wind turbine towers have been painted when they are manufactured, but many installed wind turbines have not been painted before installation, so they can only be painted at high altitudes.

[0003] The existing high-altitude painting method is manual painting, which requires hanging a basket and people from the cabin on top of the wind turbine for painting, and the work efficiency is low. Especially when encountering gusts, the hanging basket will sway with the wind, and the risk of people falling is very high. The patent application with publication number CN201483901U discloses a building exterior wall and outdoor advertising spray painting vehicle, which uses a vehicle-mounted lift to lift the spray painting machine to a certain height to spray the wall. However, due to the high height of the wind turbine tower, usually more than 60 meters, it is difficult for the vehicle-mounted lift to reach this height. Even if it barely reaches this height, it will sway in the air and cannot work normally. The patent application with publication number CN105856840A discloses a high-rise exterior wall cleaning and spray painting all-in-one machine, which also has this technical problem. Summary of the invention

[0004] The purpose of the present invention is to provide a high-altitude painting device for a wind turbine tower, which is used to replace manual painting on a high-altitude wind turbine tower, so as to improve the efficiency of painting, reduce the risk of painting, and avoid accidents of people falling.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-altitude painting device for a wind turbine tower comprises a lifting platform that can move up and down along the tower and a spray painting unit fixedly connected under the lifting platform; the spray painting unit comprises a horizontal fourth platen, a template close to the tower and an electric spray paint machine arranged on the fourth platen; the fourth platen is clearance-matched with the tower, the fourth platen is fixedly connected to the lifting platform, the template is detachably connected to the fourth platen, the template is provided with a hollow graphic logo, and the nozzle of the electric spray paint machine is located on the side of the template away from the tower.

[0007] Further, an active column is provided on the fourth platen. The active column is arranged on the side of the template away from the tower barrel. A cantilever is provided between the active column and the template. One end of the cantilever is fixedly connected to the active column, and the other end abuts against the template. The template is made of an elastic material. A driving assembly for driving the active column to approach or move away from the tower barrel is provided on the fourth platen; when the active column approaches the tower barrel, the template is tightly attached to the surface of the tower barrel, and when the active column moves away from the tower barrel, there is a gap between the template and the tower barrel.

[0008] Further, a fifth platen is arranged in parallel below the fourth platen. The active column is arranged between the fourth platen and the fifth platen. There are two symmetrically arranged active columns. The fourth platen and the fifth platen are both provided with radial second chutes at positions corresponding to each active column. Slide pins are slidably connected in the second chutes, and the slide pins are respectively fixedly connected to the corresponding active columns.

[0009] Further, the driving assembly includes an electric rotary actuator arranged beside each active column, a swing arm fixedly connected to the rotating shaft of the electric rotary actuator at one end, and a cylindrical pin fixedly connected to the other end of the swing arm; the electric rotary actuators are respectively fixedly connected to the corresponding fourth platen or fifth platen. Each active column is provided with a vertical first chute at a position corresponding to the cylindrical pin. The cylindrical pins are respectively inserted into the corresponding first chutes, and the cylindrical pins are both rotatably and slidably connected to the corresponding active columns.

[0010] Further, a vertical sliding column is fixedly arranged under the fourth platen. A slider is slidably connected to the sliding column through it. A lead screw is threadedly connected through the slider. The lead screw is rotatably connected to the fourth platen. A driving motor in transmission connection with the lead screw is fixedly connected to the fourth platen. The nozzle is in the shape of a duckbill and is fixedly connected to the slider.

[0011] Further, a hot air blower with an air outlet facing the graphic logo is fixedly arranged on the fifth platen.

[0012] Further, the lifting platform includes a first platen arranged outside the tower barrel, a second platen arranged in parallel below the first platen, and a main hoist fixedly arranged on the first platen or the second platen. The first platen and the second platen are both horizontally arranged. The first platen is fixedly connected to the second platen. A lifting rope is wound on the main hoist. The lower end of the lifting rope is wound on the drum of the main hoist, and the upper end of the lifting rope is fixedly connected to the top of the tower barrel. The second platen is fixedly connected to the spraying unit;

[0013] A strap is provided on the outer wall of the tower, an auxiliary winch is fixedly provided on the first platform or the second platform at a position close to the edge, one end of the strap is fixedly connected to the first platform, and the other end of the strap is wound around the reel of the auxiliary winch. After the auxiliary winch tightens the strap, the strap is tightly held outside the tower;

[0014] A wheel frame is fixedly arranged on the first platform or the second platform, and a roller that rolls vertically along the outer wall of the tower is rotatably connected to the wheel frame.

[0015] Furthermore, the lifting rope is close to the outer wall of the tower, and the winch is arranged between the first platen and the second platen. The first platen is provided with a through hole at a position corresponding to the lifting rope, and a guide tube is fixedly arranged on the first platen at the position of the through hole. The guide tube is coaxial with the through hole, and the guide tube is sleeved outside the lifting rope, and the through hole and the guide tube are both matched with the clearance of the lifting rope.

[0016] Further, a third platen is arranged in parallel below the second platen, the third platen is fixedly connected to the inkjet unit, the third platen is fixedly connected to the second platen, the straps are two arranged up and down, the auxiliary winches are two arranged up and down, the reels of the two auxiliary winches are respectively arranged between the first platen and the second platen and between the second platen and the third platen, one end of the two straps is respectively wound around the corresponding reels, and the other end is respectively fixedly connected to the first platen and the second platen;

[0017] Support columns are provided between the first and second plates and between the second and third plates. The first, second and third plates are fixedly connected to corresponding support columns respectively, and the ends of the straps away from the auxiliary winch are fixedly connected to corresponding support columns respectively.

[0018] Furthermore, there are two lifting ropes, one close to the outer wall of the tower and the other away from the outer wall of the tower. There are two main winches, and the lower ends of the two lifting ropes are respectively wound around the drums of the corresponding main winches.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention is provided with a lifting platform and a spray painting unit. The spray painting unit includes an electric paint sprayer and a template. The lifting platform drives the spray painting unit to move along the tower, thereby replacing manual climbing, so that accidents of personnel falling will not occur, and the efficiency of spray painting is also improved.

[0021] 2. The present invention is provided with a movable column, a swing arm and an electric angle adjuster. The electric angle adjuster drives the swing arm to swing, and then drives the movable column, so that the template is tightly attached to the surface of the tower barrel during painting, making the edges of the painted signs sharp, without blurring or fraying, thus making the painted graphics and texts both beautiful and easy to identify. When the present invention moves, the template is separated from the tower barrel, thus avoiding damage to the painted graphics and texts.

[0022] 3. The nozzle of the electric paint spraying machine is duckbill-shaped and can move up and down. The paint sprayed by the nozzle is in a horizontal fan shape. When the nozzle moves up and down, it sweeps across the hollow graphics and texts and prints them on the surface of the tower barrel, so that the paint of the painted graphics and texts is uniform and there will be no phenomenon of uneven shades.

[0023] 4. The lifting platform is provided with a main hoist, a lifting rope, a first platform plate and a second platform plate. The main hoist drives the first platform plate and the second platform plate to move up and down, thereby driving the painting unit to move up and down along the tower barrel, thus improving the working efficiency during the maintenance of the outer wall of the tower barrel.

[0024] 5. The lifting platform is provided with an auxiliary hoist and a belt. After the painting unit reaches the working position, the auxiliary hoist tightens the belt to fix the present invention on the surface of the tower barrel. The present invention swings with the wind at high altitude, increasing the safety factor of the present invention, preventing accidents caused by accidental sliding, and improving the quality of the painting unit during painting due to providing a stable working platform.

[0025] 6. The template can be disassembled and replaced, so that different templates can be replaced according to the actually required graphics and texts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the present invention after being connected to the tower barrel in Embodiment 1;

[0027] Figure 2 is a schematic diagram of the present invention viewed from the left after removing the tower barrel; Figure 1 from the left;

[0028] Figure 3 is a schematic diagram of the structure of the painting unit;

[0029] Figure 4 is a schematic diagram of the structure of the lifting platform in Embodiment 1;

[0030] Figure 5 is a schematic diagram of the structure of the lifting platform in Embodiment 2;

[0031] Figure 6 is a schematic diagram of the structure of the lifting platform in Embodiment 3;

[0032] In the figure:

[0033] 1. Tower; 2. Straps; 3. Hoisting ropes; 4. Auxiliary winch; 5. Through hole; 6. First platform; 7. Main winch; 8. Second platform; 9. Third platform; 10. Support column; 11. Wheel frame; 12. Reel; 13. Roller; 14. Guide tube; 15. Connecting plate; 16. Movable column; 17. Sliding pin; 18. Second slide slot; 19. Hot air blower; 20. Sliding block; 21. Sliding column; 22. Lead screw; 23. Driving motor; 24. Fourth platform; 25. Electric angler; 26. First slide slot; 27. Template; 28. Fifth platform; 29. Press plate; 30. Shield; 31. Cantilever; 32. Swing arm; 33. Nozzle. DETAILED DESCRIPTION

[0034] Example 1

[0035] like Figures 1 to 4 As shown, a high-altitude painting device for a wind turbine tower includes a lifting platform that can move up and down along the tower 1 and a spray painting unit fixedly connected below the lifting platform. The spray painting unit includes a fourth arc-shaped horizontal platen 24 arranged below the lifting platform, a fifth arc-shaped platen 28 arranged parallel to the fourth platen 24, a template 27 close to the tower 1, and an electric sprayer arranged on the fourth platen 24. The fourth platen 24 and the fifth platen 28 are both in clearance fit with the tower 1, and the top surface of the fourth platen 24 is fixedly connected to the lifting platform.

[0036] The template 27 is in the shape of a gate, and the part close to the tower 1 is in the shape of an arc corresponding to the surface of the tower 1. Both ends of the fourth platform 24 and the fifth platform 28 are fixedly connected with vertical rectangular connecting plates 15 by screws, and both ends of the template 27 are pressed on the corresponding connecting plates 15 by pressing plates 29 and screws. A hollow graphic mark is provided in the middle of the template 27, and the graphic mark is the word "中". After removing the pressing plate 29, the template 27 can be replaced according to the graphic mark required on site.

[0037] A shield 30 is fixedly connected to the middle position of the top surface of the fourth platform 24 by screws. The electric paint sprayer is arranged in the shield 30. The nozzle 33 of the electric paint sprayer is connected by a hose. The nozzle 33 is located on the side of the template 27 away from the tower 1.

[0038] The lifting platform drives the spray painting unit to move along the tower 1 to the part to be sprayed on the tower 1, and then the electric spray paint machine sprays paint to the hollowed-out word "中" through the nozzle 33, thereby forming the word "中" on the surface of the tower 1. Therefore, there is no need for manual climbing for spray painting, which improves work efficiency and reduces the risk factor of spray painting.

[0039] A vertical rectangular movable column 16 is provided between the fourth platform 24 and the fifth platform 28. The movable columns 16 are symmetrically arranged. The movable columns 16 are both arranged on the side of the hollow "中" character on the template 27 away from the tower 1. A cantilever 31 is provided between the upper and lower ends of each movable column 16 and the template 27. One end of the cantilever 31 is fixedly connected to the movable column 16, and the other end is rotatably connected to a roller, and the roller is against the corner of the template 27 away from the tower 1. The template 27 is made of elastic material, such as an elastic thin steel plate or plastic plate. A driving assembly for driving the movable column 16 to approach or move away from the tower 1 along the radial direction of the tower 1 is provided on the fourth platform 24; when the movable column 16 approaches the tower 1, the template 27 is tightly attached to the surface of the tower 1, and when the movable column 16 moves away from the tower 1, there is a gap between the template 27 and the tower 1.

[0040] The fourth platform 24 and the fifth platform 28 are both provided with radial second slide grooves 18 at positions corresponding to each movable column 16 , and two slide pins 17 are slidably connected in each second slide groove 18 , and the slide pins 17 are fixedly connected to the corresponding movable columns 16 .

[0041] The driving assembly includes an electric angler 25 arranged beside each movable column 16, and there are four electric anglers 25. The rotating shaft of each electric angler 25 is fixedly connected to a swing arm 32, and the end of the swing arm 32 away from the electric angler 25 is fixedly connected to a cylindrical pin, and the electric angler 25 is respectively fixedly connected to the corresponding fourth platen 24 or fifth platen 28. Each movable column 16 is provided with a vertical first slide groove 26 at a position corresponding to the cylindrical pin, and the cylindrical pin is respectively inserted into the corresponding first slide groove 26, and the cylindrical pin is connected to the corresponding movable column 16 in both rotation and sliding.

[0042] When the electric anglers 25 drive the corresponding swing arms 32 to swing, the cylindrical pins on the swing arms 32 swing toward the tower 1. The cylindrical pins slide in the corresponding first slide slots 26 and drive the movable column 16 to move synchronously between the fourth platen 24 and the fifth platen 28 toward the tower 1. While moving, the movable column 16 drives the cantilever 31 to squeeze the template 27, so that the template 27 is closely attached to the surface of the tower 1, and then the nozzle 33 sprays paint to form the word "中" on the surface of the tower 1. After the words are dry, the electric angler 25 drives the swing arm 32 to make the cantilever 31 synchronously move away from the template 27. Under the action of elasticity, the template 27 is separated from the tower 1.

[0043] Since the template 27 is in close contact with the surface of the tower 1 when the nozzle 33 is spraying, the edges of the sprayed logo are sharp without blurring or burrs, so that the sprayed graphics are both beautiful and easy to identify.

[0044] Two vertical sliding columns 21 are fixedly arranged at the middle position between the fourth platen 24 and the fifth platen 28, and a slider 20 is provided on the sliding column 21 and is slidably connected thereto, and a lead screw 22 is threadedly connected to the slider 20 between the two sliding columns 21, and the fourth platen 24 and the fifth platen 28 are both rotatably connected to the lead screw 22, and a drive motor 23 is fixedly arranged under the fifth platen 28 via a support column and a rectangular mounting plate, and the output shaft of the drive motor 23 is transmission-connected to the lower end of the lead screw 22 via a coupling, and the nozzle 33 is duckbill-shaped, and the nozzle 33 is fixedly connected to the slider 20.

[0045] The paint sprayed from the nozzle 33 is in a horizontal fan shape. The driving motor 23 drives the lead screw 22 to rotate, thereby driving the slider 20 and the nozzle 33 to move up and down, so that the paint sprayed from the nozzle 33 sweeps over the hollow "中" character in the up and down directions and is printed on the surface of the tower 1, so that the painted graphics and texts are evenly painted without uneven depth.

[0046] The fifth platen 24 is fixedly provided with a hot air blower 19 with its air outlet facing the graphic mark, and two hot air blowers 19 are symmetrically arranged on both sides of the nozzle 33 .

[0047] After the printing is completed, the hot air blower 19 is started to accelerate the solidification of the paint by hot air, thereby further improving the printing efficiency.

[0048] The lifting platform includes a first platform 6 arranged outside the tower 1, a second platform 8 arranged parallel to and below the first platform 6, a third platform 9 arranged parallel to and below the second platform 8, and a main winch 7 driven by a motor arranged between the first platform 6 and the second platform 8.

[0049] The main winch 7 is fixedly connected to the second platform 8 by screws. The first platform 6, the second platform 8 and the third platform 9 are all arranged horizontally. Support columns 10 are arranged between the first platform 6 and the second platform 8, between the second platform 8 and the third platform 9, between the third platform 9 and the fourth platform 24, and between the fourth platform 24 and the fifth platform 28. The first platform 6, the second platform 8, the third platform 9, the fourth platform 24 and the fifth platform 28 are respectively fixedly connected to the corresponding support columns 10 by screws. A lifting rope 3 is wound around the main winch 7. The lifting rope 3 is close to the tower 1. The lower end of the lifting rope 3 is wound around the drum of the main winch 7, and the upper end of the lifting rope 3 is fixedly connected to the top of the tower 1. The first platform 6 is provided with a through hole 5 at a position corresponding to the lifting rope 3. The lifting rope 3 passes through the through hole 5, and the through hole 5 is in clearance with the lifting rope 3.

[0050] When the main hoist 7 is in operation, the inkjet printing unit can move up and down and reach the working point, thereby improving working efficiency and reducing working risks.

[0051] A strap 2 is provided on the outer wall of the tower 1, and an auxiliary winch 4 is fixedly provided at a position close to the edge of the first platform 6. One end of the strap 2 is fixedly connected to the first platform 6, and the other end of the strap 2 is wound around the reel 12 of the auxiliary winch 4. After the auxiliary winch 4 tightens the strap 2, the strap 2 is tightly held outside the tower 1.

[0052] The straps 2 are arranged in two pieces in a vertical direction, the auxiliary hoists 4 are arranged in two pieces in a vertical direction, the reels 12 of the two auxiliary hoists 4 are arranged vertically, and the reels 12 of the two auxiliary hoists 4 are located on the same axis. The reels 12 of the two auxiliary hoists 4 are respectively arranged between the first platform 6 and the second platform 8 and between the second platform 8 and the third platform 9.

[0053] The motor of the upper auxiliary hoist 4 is upward, and the motor of the lower auxiliary hoist 4 is downward. The two ends of the reel 12 of the upper auxiliary hoist 4 are rotatably connected to the first platform 6 and the second platform 8, respectively, and the reel 12 of the lower auxiliary hoist 4 is rotatably connected to the second platform 8 and the third platform 9, respectively. One end of the two straps 2 is respectively wound around the corresponding reel 12, and the other end is respectively fixedly connected to the support column 10 between the first platform 6 and the second platform 8 and the support column 10 between the second platform 8 and the third platform 9.

[0054] The main hoist 7 and the auxiliary hoist 4 are both provided with brakes.

[0055] Driven by the auxiliary winch 4, the belt 2 is tightly held on the outer wall of the tower 1, and the friction force is used to fix the present invention on the outer wall of the tower 1, while preventing the present invention from swinging in the wind at high altitudes, thereby increasing the safety factor of the present invention and preventing falling accidents due to unexpected sliding.

[0056] A vertical wheel frame 11 is provided between the first platform 6 and the second platform 8, and between the second platform 8 and the third platform 9, and the wheel frames 11 are symmetrically arranged in two pairs. The first platform 6, the second platform 8 and the third platform 9 are respectively fixedly connected to the corresponding wheel frames 11 by screws. A roller 13 made of nylon is rotatably connected to each wheel frame 11, and the outer circle of the roller 13 is pressed on the outer circle of the tower 1.

[0057] After the roller 13 is arranged, the topcoat of the tower 1 can be protected to prevent the topcoat from being scraped off. At the same time, the roller 13 has a guiding function, so that the present invention is more stable when moving up and down along the tower 1.

[0058] The working process of the lifting platform is:

[0059] 1. The brake on the auxiliary winch 4 is released, and the auxiliary winch 4 loosens the two straps 2.

[0060] 2. The brake of the main hoist 4 is released, and the main hoist 4 is started to lift the present invention together with the spraying unit. At this time, the rollers 13 roll along the outer wall of the tower barrel 1. After reaching the working position, the brake of the main hoist 7 acts to lock the main hoist 7. Then, the two auxiliary hoists 4 respectively tighten the two strap tapes 2 so that the two strap tapes 2 are both tightly held on the outer circle of the tower barrel 1. After that, the painting unit performs the painting operation.

[0061] Embodiment 2

[0062] As Figure 5 shown, the difference between this embodiment and Embodiment 1 is that:

[0063] On the upper surface of the first platen 6, a guide tube 14 is vertically welded at the position where the through hole 5 is located. The guide tube is coaxial with the through hole 5. The guide tube 14 is sleeved outside the lifting rope 3, and the guide tube 14 is in clearance fit with the lifting rope 3.

[0064] After the guide tube 14 is provided, the vertical length of the rigid part of the present invention suspended on the lifting rope 3 can be increased, thereby reducing the inclination amount of the first platen 6, the second platen 8, and the third platen 9 after the strap tape 2 is loosened.

[0065] Embodiment 3

[0066] As Figure 6 shown, the difference between this embodiment and Embodiment 1 is that:

[0067] There are two lifting ropes 3, one is close to the outer wall of the tower barrel 1 and the other is far from the outer wall of the tower barrel 1. There are two main hoists 7, and the two main hoists 7 are both fixedly connected to the second platen 7 by screws. The through holes 5 are two corresponding to the lifting ropes 3, and the lower ends of the two lifting ropes 3 are respectively wound around the drums of the corresponding main hoists 7.

[0068] Due to the provision of two lifting ropes 3 and two main hoists 7, the first platen 6, the second platen 8, and the third platen 9 are more stable when moving up and down. At the same time, the provision of two main hoists 7 can increase the reliability of the present invention.

[0069] The above-described embodiments are described in detail and specifically, representing the preferred embodiments of the present invention. They are only used to illustrate the technical ideas and characteristics of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, it is not limited to the present invention alone. The patent scope of the present invention cannot be limited only by this embodiment. That is, any equivalent changes or modifications made in accordance with the spirit disclosed by the present invention, for researchers or technicians in the field, within the structure of the present invention, local improvements within the system and changes and transformations between subsystems are still within the patent scope of the present invention. Currently, the technical solution of this application has undergone pilot testing, that is, small-scale experiments before large-scale production of the product; after the pilot test, user usage research has been carried out on a small scale, and the research results show a relatively high user satisfaction; now preparations are underway for the formal production and industrialization of the product, including research on intellectual property risk early warning.

Claims

1. A high-altitude painting device for a wind turbine tower, characterized in that, The invention comprises a lifting platform which can move up and down along a tower (1) and a spray painting unit which is fixedly connected to the bottom of the lifting platform; the spray painting unit comprises a horizontal fourth platen (24), a template (27) close to the tower (1), and an electric spray paint machine arranged on the fourth platen (24); the fourth platen (24) and the tower (1) are clearance-matched, the fourth platen (24) is fixedly connected to the lifting platform, the template (27) and the fourth platen (24) are detachably connected, the template (27) is provided with a hollow graphic mark, and the nozzle (33) of the electric spray paint machine is located on the side of the template (27) away from the tower (1); A movable column (16) is provided on the fourth platform (24), and the movable column (16) is arranged on a side of the template (27) away from the tower (1). A cantilever (31) is provided between the movable column (16) and the template (27), and one end of the cantilever (31) is fixedly connected to the movable column (16), and the other end is against the template (27). The template (27) is made of elastic material. A driving component for driving the movable column (16) to approach or move away from the tower (1) is provided on the fourth platform (24); when the movable column (16) approaches the tower (1), the template (27) is closely attached to the surface of the tower (1), and when the movable column (16) is away from the tower (1), there is a gap between the template (27) and the tower (1); A fifth platform (28) is arranged parallel to the fourth platform (24), the movable column (16) is arranged between the fourth platform (24) and the fifth platform (28), the movable columns (16) are symmetrically arranged, the fourth platform (24) and the fifth platform (28) are both provided with radial second slide grooves (18) at positions corresponding to each movable column (16), the second slide grooves (18) are both slidably connected with slide pins (17), and the slide pins (17) are respectively fixedly connected to the corresponding movable columns (16); The driving assembly comprises an electric angle turner (25) arranged beside each movable column (16), a swing arm (32) having one end fixedly connected to the rotating shaft of the electric angle turner (25), and a cylindrical pin fixedly connected to the other end of the swing arm (32); the electric angle turner (25) is respectively fixedly connected to the corresponding fourth platform (24) or fifth platform (28), each movable column (16) is provided with a vertical first slide groove (26) at a position corresponding to the cylindrical pin, the cylindrical pin is respectively inserted into the corresponding first slide groove (26), and the cylindrical pin is connected to the corresponding movable column (16) in both rotation and sliding manner; A vertical sliding column (21) is fixedly arranged under the fourth platform (24), and a sliding block (20) is provided on the sliding column (21) and is slidably connected thereto, a lead screw (22) is threadedly connected to the sliding block (20), and the lead screw (22) is rotatably connected to the fourth platform (24), and a driving motor (23) is fixedly connected to the fourth platform (24) and is transmission-connected to the lead screw (22), and the nozzle (33) is duckbill-shaped and is fixedly connected to the sliding block (20).

2. The high-altitude painting device for a wind turbine tower barrel according to claim 1, wherein A hot air blower (19) with its air outlet facing the graphic mark is fixedly arranged on the fifth platform (28).

3. The high-altitude painting device for a wind turbine tower barrel according to claim 1, characterized in that, The lifting platform comprises a first platform (6) arranged outside the tower (1), a second platform (8) arranged parallel to and below the first platform (6), and a main winch (7) fixedly arranged on the first platform (6) or the second platform (8), wherein the first platform (6) and the second platform (8) are both arranged horizontally, the first platform (6) and the second platform (8) are fixedly connected, a lifting rope (3) is wound around the main winch (7), the lower end of the lifting rope (3) is wound around the drum of the main winch (7), and the lifting rope (3) is wound around the drum of the main winch (7). The upper end of the second platform (8) is fixedly connected to the top of the tower (1), and the second platform (8) is fixedly connected to the printing unit; a belt (2) is provided on the outer wall of the tower (1), and an auxiliary winch (4) is fixedly provided on the first platform (6) or the second platform (8) at a position close to the edge, one end of the belt (2) is fixedly connected to the first platform (6), and the other end of the belt (2) is wound around the reel (12) of the auxiliary winch (4), and after the auxiliary winch (4) tightens the belt (2), the belt (2) is tightly held outside the tower (1); A wheel frame (11) is fixedly arranged on the first platform (6) or the second platform (8), and a roller (13) that rolls vertically along the outer wall of the tower (1) is rotatably connected to the wheel frame (11).

4. The high-altitude painting device for a wind turbine tower barrel according to claim 3, characterized in that, The lifting rope (3) is close to the outer wall of the tower (1); the winch is arranged between a first platform (6) and a second platform (8); the first platform (6) is provided with a through hole (5) at a position corresponding to the lifting rope (3); a guide tube (14) is fixedly arranged on the first platform (6) at the position where the through hole (5) is located; the guide tube is coaxial with the through hole (5); the guide tube (14) is sleeved outside the lifting rope (3); and the through hole (5) and the guide tube (14) are both in clearance fit with the lifting rope (3).

5. The high-altitude painting device for a fan tower barrel according to claim 3, characterized in that, A third table (9) is arranged parallel to the lower side of the second table (8), the third table (9) is fixedly connected to the inkjet printing unit, the third table (9) is fixedly connected to the second table (8), the straps (2) are two straps arranged vertically, the auxiliary hoists (4) are two straps arranged vertically, the reels (12) of the two auxiliary hoists (4) are respectively arranged between the first table (6) and the second table (8) and between the second table (8) and the third table (9), one end of the two straps (2) is respectively wound around the corresponding reels (12), and the other end is respectively fixedly connected to the first table (6) and the second table (8); Support columns (10) are provided between the first platform (6) and the second platform (8) and between the second platform (8) and the third platform (9); the first platform (6), the second platform (8) and the third platform (9) are respectively fixedly connected to the corresponding support columns (10); and the ends of the straps (2) away from the auxiliary winch (4) are respectively fixedly connected to the corresponding support columns (10).

6. The high-altitude painting device for a wind turbine tower barrel according to claim 3, characterized in that There are two lifting ropes (3), one close to the outer wall of the tower barrel (1) and the other far from the outer wall of the tower barrel (1). There are two main hoists (7), and the lower ends of the two lifting ropes (3) are respectively wound around the drums of the corresponding main hoists (7).

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