A lightning protection device for port wind turbines

Abstract

The present invention discloses a lightning protection device for a port wind turbine in the technical field of lightning protection for wind turbines, comprising a nacelle shell, the bottom of the nacelle shell being rotatably connected to a round shell bracket, the side of the nacelle shell being rotatably connected to a fan blade, the side of the nacelle shell being fixedly connected to two first plates, the two side surfaces of the first plates being rotatably connected to a first shaft penetrating the first plates, the surface of the first shaft being fixedly connected to a rectangular rod, and the end of the rectangular rod being fixedly connected to a lightning rod; the present invention provides structures such as a limiting device, a cleaning device, a cleaning block and a cleaning scraper, and after the limiting of the rectangular rod is released, the rectangular rod drives the lightning rod to enter the cleaning device, the cleaning scraper automatically wraps the surface of the lightning rod, and driven by a weight block, the surface cleaning work is realized, and the cleaning scraper scrapes and cleans the sundries adhering to the surface of the lightning rod.

Description

Technical Field

[0001] The invention relates to the technical field of lightning protection for wind turbine generators, in particular to a lightning protection device for port wind turbine generators. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. It usually consists of a wind wheel, a generator, a rotor, a tower, a control system, an inverter and other parts.

[0003] Wind turbines are prone to lightning strikes due to their high structures and special working environments, so lightning protection measures are essential. Lightning may cause serious consequences such as blade damage, generator failure, control system failure, and even fire, causing huge economic losses and safety hazards.

[0004] A lightning rod is usually installed on the top of a wind turbine nacelle. Since the lightning rod is in the external environment for a long time, its surface is inevitably corroded and sticky with dirt and other debris. Especially for wind turbines located in ports, the surface of the lightning rod is more susceptible to corrosion. In this state, the lightning rod's current conduction performance will deteriorate, making its lightning-attracting effect worse.

[0005] Based on this, the present invention designs a lightning protection device for a port wind turbine to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a lightning protection device for a port wind turbine generator to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lightning protection device for a port wind turbine, comprising a nacelle shell, the bottom of the nacelle shell is rotatably connected to a round shell bracket, the side of the nacelle shell is rotatably connected to a fan blade, the side of the nacelle shell is fixedly connected to two first plates, the two first plate sides are rotatably connected to a first shaft that penetrates the first plates, the surface of the first shaft is fixedly connected to a rectangular rod, the end of the rectangular rod is fixedly connected to a lightning rod, both ends of the first shaft are fixedly connected to a circular plate, the circular plate and the side of the first plate are commonly fixedly connected to a torsion spring, the bottom of the rectangular rod is connected to a limit device that limits the rotation of the rectangular rod, and the top of the nacelle shell is connected to a cleaning device for cleaning the surface of the lightning rod;

[0008] The limiting device includes a second plate, the second plate is fixedly connected to the cabin shell, a plug-in shaft penetrating the second plate is slidably connected to the side of the second plate, the end of the plug-in shaft penetrates the rectangular rod, the plug-in spring is fixedly connected to the second plate, the end of the plug-in shaft is fixedly connected to the first rope, the end of the first rope is fixedly connected to the first rotating wheel, the side of the cabin shell is fixedly connected to the first motor, and the surface of the output shaft of the first motor is fixedly connected to the first rotating wheel;

[0009] The cleaning device comprises two third plates, the third plates are fixedly connected to the top of the cabin shell, a limiting shaft penetrating the third plate is slidably connected to the side of the third plate, the limiting shaft and the third plate are jointly fixedly connected to a limiting spring, a special-shaped rod is fixedly connected to the side of the limiting shaft, a wedge-shaped block is fixedly connected to the end of the special-shaped rod, a frame is slidably connected to the surfaces of the two limiting shafts, an extrusion rod penetrating the frame is slidably connected to the two side surfaces of the frame, an extrusion rod and the frame are jointly fixedly connected to an extrusion spring, two straight rods are fixedly connected to the top of the cabin shell, an inclined surface is provided at the end of the straight rod, an extrusion block is fixedly connected to the end of the extrusion rod, the extrusion block is adapted to the inclined surface, and a cleaning block is fixedly connected to the end of the extrusion rod. The side of the cleaning block is provided with an arc-shaped surface which is compatible with the surface of the lightning rod, and a cleaning scraper is fixedly connected to the arc-shaped surface; the bottom of the frame is fixedly connected with a T-shaped slide; the top of the cabin shell is provided with a penetrating slide groove; the T-shaped slide groove is slidably connected to the inner wall of the slide groove; the inner wall of the cabin shell is rotatably connected with a first roller; the side of the T-shaped slide groove is fixedly connected with a second rope; the second rope passes around the first roller and a weight block is fixedly connected to the end; the top of the cabin shell is fixedly connected with a support plate; the side of the support plate is provided with a groove which is compatible with the surface of the rectangular rod; the side of the support plate is fixedly connected with a fourth plate; the side of the fourth plate is slidably connected with a downward pressure shaft which penetrates the fourth plate, and the end of the downward pressure shaft is in contact with the inclined surface of the wedge block.

[0010] As a further solution of the present invention, the side of the cleaning block is fixedly connected to a rectangular block, the side of the rectangular block is slidably connected to a pressure rod that passes through the rectangular block, the pressure rod and the rectangular block are jointly fixedly connected to a pressure spring, the other end of the pressure rod is fixedly connected to an arc plate, and the inner wall of the arc plate is fixedly connected to a small cleaning knife.

[0011] As a further solution of the present invention, the side of the cleaning block is fixedly connected to a first transverse plate, the side of the first transverse plate is fixedly connected to two fifth plates, the side of the fifth plate is provided with a semicircular groove, the inner wall of the semicircular groove is slidably connected to a first long rod that passes through the semicircular groove, the first long rod is made of soft material, both ends of the first long rod are fixedly connected to limited circular blocks, the surface of the first long rod is rotatably connected to a first rotating shell, and the surface of the first rotating shell is fixedly connected to a cleaning brush.

[0012] As a further solution of the present invention, a second transverse plate is fixedly connected to the side of the cleaning block, two sixth plates are fixedly connected to the side of the second transverse plate, a semicircular groove is also opened on the side of the sixth plate, a second long rod that passes through the semicircular groove is slidably connected to the inner wall of the semicircular groove, the second long rod is made of soft material, both ends of the second long rod are fixedly connected to limiting circular blocks, the surface of the second long rod is rotatably connected to a second rotating shell, and the surface of the second rotating shell is fixedly connected to a scraper; the limiting circular block connected to the first long rod and the limiting circular block connected to the second long rod have exactly the same structure.

[0013] As a further solution of the present invention, a second motor is fixedly connected to the side of the first plate, the output shaft of the second motor is fixedly connected to the circular plate, the inner wall of the cabin shell is rotatably connected to a second roller, a third rope is fixedly connected to the side of the T-shaped skateboard, the third rope passes around the second roller and the end of the third rope is fixedly connected to a cylindrical block, the inner wall of the cabin shell is fixedly connected to a third motor, and the end of the output shaft of the third motor is fixedly connected to the rotating shaft of the first roller.

[0014] As a further solution of the present invention, a dustproof shell is fixedly connected to the top of the cabin shell, and two electric doors are slidably connected to the top of the dustproof shell, and the rectangular rod passes through the electric doors.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides structures such as a limit device, a cleaning device, a cleaning block and a cleaning scraper. After the limit of the rectangular rod is released, the rectangular rod drives the lightning rod into the cleaning device, and the cleaning scraper automatically wraps the surface of the lightning rod. Driven by the heavy block, the surface of the lightning rod is cleaned. The cleaning scraper scrapes and cleans the debris adhering to the surface of the lightning rod. At the same time, the cleaning scraper also scrapes and cleans the metal oxides and corrosion products on the surface of the lightning rod, so that the surface of the lightning rod is restored to a better conductive state, avoiding the adhesion of debris on the surface of the lightning rod, corrosion and oxidation, which lead to an increase in its resistance, and then lead to a deterioration in the conductivity of the current, so that the effect of attracting lightning is deteriorated. The whole process is automatic, no manual participation is required, and the cleaning efficiency is high.

[0017] 2. The present invention provides a small cleaning knife, an arc plate and a compressed spring structure. When the surface of the lightning rod is first cleaned, the end face of the arc plate contacts the surface of the lightning rod and is squeezed and moved backward, while the compressed spring is stretched. When the tip structure is cleaned, the small cleaning knife contacts the surface of the tip part under the action of the compressed spring, and the surface of the tip part is scraped and cleaned under the drive of the cleaning block, thereby ensuring that the surface of the lightning rod is completely cleaned.

[0018] 3. When the cleaning scraper contacts the surface of the lightning rod, the cleaning block will synchronously drive the cleaning brush to contact the surface of the lightning rod and be squeezed by the lightning rod. Under the action of the squeezing of the lightning rod, the first long rod will be deformed so that it deforms into an arc that adapts to the surface of the lightning rod. In this way, the cleaning brush and the surface of the lightning rod will be in full contact. Driven by the cleaning block, the surface of the lightning rod will be swept, so that the dirt and other debris adhering to its surface can be cleaned up in advance or made looser, laying the foundation for subsequent cleaning work.

[0019] 4. When the cleaning scraper contacts the surface of the lightning rod, the cleaning block will synchronously drive the scraper to contact the surface of the lightning rod and be squeezed by the lightning rod. Under the action of the squeezing of the lightning rod, the second long rod will be deformed so that it deforms into an arc that adapts to the surface of the lightning rod. In this way, the scraper and the surface of the lightning rod will be in full contact. Driven by the cleaning block, the scraper will clean the surface of the lightning rod that has not been cleaned by the cleaning scraper again, and the surface metal oxide film and corrosion products will be cleaned by rotation and scraping, ensuring that the surface of the lightning rod is cleaned more thoroughly and its conductive properties are fully restored. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a first stereogram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 It is a three-dimensional diagram after removing the round shell bracket and the fan blades from the overall structure of the present invention;

[0024] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 5 for Figure 4 A partial enlarged view of point C in the middle;

[0026] Figure 6 It is a three-dimensional diagram of a transverse section of the nacelle shell after removing the round shell bracket and the fan blades in the overall structure of the present invention;

[0027] Figure 7 It is a first stereoscopic diagram of the connection relationship between the cleaning device and the supporting plate and other structures of the present invention;

[0028] Figure 8 A second stereoscopic diagram of the connection relationship between the cleaning device and the supporting plate and other structures of the present invention;

[0029] Fig. 9 A third stereoscopic diagram of the connection relationship between the cleaning device and the supporting plate of the present invention;

[0030] Fig.10 for Fig. 9 A partial enlarged view of point D in the middle;

[0031] Fig.11 for Fig.10 A partial enlarged view of point E in the middle;

[0032] Fig.12 A fourth stereoscopic diagram of the connection relationship between the cleaning device and the supporting plate of the present invention;

[0033] Fig.13 for Fig.12 A partial enlarged view of the F in the middle;

[0034] Fig.14 for Fig.12 A partial enlarged view of the G in the middle;

[0035] Fig.15 for Fig.14 A partial enlarged view of the H in the middle;

[0036] Fig.16 It is a three-dimensional diagram of the structural connection relationship among the support plate, the fourth plate and the lower pressure shaft of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] Cabin shell 1, round shell bracket 2, fan blade 3, first plate 4, first shaft 5, rectangular rod 6, lightning rod 7, round plate 8, torsion spring 9, second plate 10, plug shaft 11, plug spring 12, first rope 13, first rotating wheel 14, first motor 15, third plate 16, limit shaft 17, limit spring 18, special-shaped rod 19, wedge block 20, frame frame 21, extrusion rod 22, extrusion spring 23, straight rod 24, extrusion block 25, cleaning block 26, cleaning scraper 27, T-shaped slide plate 28, slide 29, first roller 30, second rope 31, weight Block 32, support plate 33, notch 34, fourth plate 35, pressure shaft 36, rectangular block 37, pressure rod 38, pressure spring 39, arc plate 40, small cleaning knife 41, first transverse plate 42, fifth plate 43, first long rod 44, limiting circular block 45, first rotating shell 46, cleaning brush 47, second transverse plate 48, sixth plate 49, second long rod 50, second rotating shell 51, scraping knife 52, second motor 53, second roller 54, third rope 55, cylindrical block 56, third motor 57, dustproof shell 58, electric door 59. DETAILED DESCRIPTION

[0039] 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.

[0040] See also Figure 1-16 The present invention provides a technical solution: a lightning protection device for a port wind turbine, comprising a nacelle shell 1, a round shell bracket 2 is rotatably connected to the bottom of the nacelle shell 1, a fan blade 3 is rotatably connected to the side of the nacelle shell 1, two first plates 4 are fixedly connected to the side of the nacelle shell 1, a first shaft 5 penetrating the first plates 4 is rotatably connected to the side of the two first plates 4, a rectangular rod 6 is fixedly connected to the surface of the first shaft 5, a lightning rod 7 is fixedly connected to the end of the rectangular rod 6, a circular plate 8 is fixedly connected to both ends of the first shaft 5, a torsion spring 9 is fixedly connected to the circular plate 8 and the side of the first plate 4, a limiting device for limiting the rotation of the rectangular rod 6 is connected to the bottom of the rectangular rod 6, and a cleaning device for cleaning the surface of the lightning rod 7 is connected to the top of the nacelle shell 1;

[0041] The limiting device includes a second plate 10, the second plate 10 is fixedly connected to the cabin shell 1, a plug-in shaft 11 penetrating the second plate 10 is slidably connected to the side of the second plate 10, the end of the plug-in shaft 11 penetrates the rectangular rod 6, the plug-in spring 12 is fixedly connected to the plug-in shaft 11 and the second plate 10, the end of the plug-in shaft 11 is fixedly connected to the first rope 13, the end of the first rope 13 is fixedly connected to the first rotating wheel 14, the side of the cabin shell 1 is fixedly connected to the first motor 15, and the output shaft surface of the first motor 15 is fixedly connected to the first rotating wheel 14;

[0042] The cleaning device comprises two third plates 16, the third plates 16 are fixedly connected to the top of the cabin shell 1, a limiting shaft 17 penetrating the third plates 16 is slidably connected to the side of the third plate 16, the limiting shaft 17 and the third plate 16 are jointly fixedly connected to a limiting spring 18, a special-shaped rod 19 is fixedly connected to the side of the limiting shaft 17, a wedge block 20 is fixedly connected to the end of the special-shaped rod 19, a frame frame 21 is slidably connected to the surfaces of the two limiting shafts 17, an extrusion rod 22 penetrating the frame frame 21 is slidably connected to both sides of the frame frame 21, an extrusion rod 22 and the frame frame 21 are jointly fixedly connected to an extrusion spring 23, two straight rods 24 are fixedly connected to the top of the cabin shell 1, an inclined surface is provided at the end of the straight rod 24, an extrusion block 25 is fixedly connected to the end of the extrusion rod 22, the extrusion block 25 is adapted to the inclined surface, and a cleaning block 2 is fixedly connected to the end of the extrusion rod 22 6. The side of the cleaning block 26 is provided with an arc surface adapted to the surface of the lightning rod 7, and a cleaning scraper 27 is fixedly connected to the arc surface. A T-shaped slide 28 is fixedly connected to the bottom of the frame 21. A through slide 29 is provided on the top of the cabin shell 1. The T-shaped slide 28 and the inner wall of the slide 29 are slidably connected. The inner wall of the cabin shell 1 is rotatably connected to a first roller 30. A second rope 31 is fixedly connected to the side of the T-shaped slide 28. The second rope 31 passes around the first roller 30 and a weight block 32 is fixedly connected to the end. A support plate 33 is fixedly connected to the top of the cabin shell 1. A notch 34 adapted to the surface of the rectangular rod 6 is provided on the side of the support plate 33. A fourth plate 35 is fixedly connected to the side of the support plate 33. A downward pressure shaft 36 penetrating the fourth plate 35 is slidably connected to the side of the fourth plate 35, and the end of the downward pressure shaft 36 contacts the inclined surface of the wedge block 20.

[0043] During operation, during the self-check of the lightning protection system of the wind turbine generator, it is found that the conductivity of the lightning rod 7 decreases, and the first motor 15 is started. The output shaft of the first motor 15 rotates and drives the first rotating wheel 14 to rotate. The first rotating wheel 14 will wind the first rope 13. The first rope 13 will pull the plug-in shaft 11 to move backward and pull the plug-in spring 12 at the same time. The plug-in shaft 11 will eventually break away from the rectangular rod 6. At this time, the plug-in limit of the rectangular rod 6 is released, and the first motor 15 stops rotating. Under the action of the torsion spring 9, the first shaft 5 will rotate and drive the lightning rod 7 to rotate through the rectangular rod 6. After the rod 6 rotates 90 degrees, it is supported by the notch 34 on the support plate 33 and no longer rotates. When the rectangular rod 6 just enters the notch 34, its surface will contact and squeeze the lower pressing shaft 36. The squeezed lower pressing shaft 36 moves downward and squeezes the wedge block 20. The squeezed wedge block 20 will move backward and drive the limit shaft 17 to move backward through the special-shaped rod 19, while stretching the limit spring 18. The movement of the limit shaft 17 will eventually release the limit of the third plate 16. When the limit of the third plate 16 is just released, the rectangular rod 6 is just in contact with the inner wall of the notch 34. The second rope 31 is used to pull the T-shaped slide 28, and the T-shaped slide 28 drives the cleaning block 26 and the extrusion block 25 to move through the frame 21 and the extrusion rod 22. The extrusion block 25 will gradually detach from the inclined surface of the straight rod 24. Under the action of the extrusion spring 23, the extrusion rod 22 drives the cleaning block 26 to move. Finally, the cleaning scraper 27 on the arc surface will contact the surface of the lightning rod 7. Due to the action of the extrusion spring 23, the cleaning scraper 27 has a certain pressure on the lightning rod 7. As the T-shaped slide 28 continues to move, the cleaning scraper 27 will contact the surface of the lightning rod 7. The scraper 27 will scrape and clean the debris stuck on the surface of the lightning rod 7. At the same time, the cleaning scraper 27 will also scrape and clean the metal oxides and corrosion products on the surface of the lightning rod 7, so that the surface of the lightning rod 7 can be restored to a better conductive state, avoiding the adhesion of debris on the surface of the lightning rod 7 and corrosion and oxidation, which will increase its resistance, and then lead to poor current conduction performance, making its lightning-inducing effect worse. When the T-shaped slide plate 28 slides to contact the inner wall of the end of the slide groove 29, it stops moving, and the cleaning work of the lightning rod 7 is completed.

[0044] As a further solution of the present invention, a rectangular block 37 is fixedly connected to the side of the cleaning block 26, a compression rod 38 penetrating the rectangular block 37 is slidably connected to the side of the rectangular block 37, a compression spring 39 is fixedly connected to the compression rod 38 and the rectangular block 37, and the other end of the compression rod 38 is fixedly connected to an arc plate 40, and a small cleaning knife 41 is fixedly connected to the inner wall of the arc plate 40; when working, since the top of the lightning rod 7 is a slender tip structure, the cleaning scraper 27 is adapted to the surface of the lightning rod 7, and it acts on the surface of the tip. In order to achieve the effect of scraping cleaning, a small cleaning knife 41, an arc plate 40 and a compressed spring 39 structure are provided. When the surface of the lightning rod 7 is just cleaned, the end face of the arc plate 40 contacts the surface of the lightning rod 7 and is squeezed and moved backward, while the compressed spring 39 is stretched. When the structural part at the tip is cleaned, the small cleaning knife 41 will contact the surface of the tip part under the action of the compressed spring 39, and the surface of the tip part will be scraped and cleaned under the drive of the cleaning block 26, thereby ensuring that the surface of the lightning rod 7 is completely cleaned.

[0045] As a further solution of the present invention, a first transverse plate 42 is fixedly connected to the side of the cleaning block 26, and two fifth plates 43 are fixedly connected to the side of the first transverse plate 42. A semicircular groove is opened on the side of the fifth plate 43, and a first long rod 44 that penetrates the semicircular groove is slidably connected to the inner wall of the semicircular groove. The first long rod 44 is made of soft material, and the two ends of the first long rod 44 are fixedly connected to the limited position circular block 45. The surface of the first long rod 44 is rotatably connected to the first rotating shell 46, and the surface of the first rotating shell 46 is fixedly connected to the cleaning brush 47; when working, the cleaning scraper 2 When the surface of the lightning rod 7 contacts the cleaning block 26, the cleaning brush 47 will synchronously drive the cleaning brush 47 to contact the surface of the lightning rod 7 and be squeezed by the lightning rod 7. Under the squeezing of the lightning rod 7, the first long rod 44 will be deformed so that it deforms into an arc that adapts to the surface of the lightning rod 7. In this way, the cleaning brush 47 and the surface of the lightning rod 7 will be in full contact. Driven by the cleaning block 26, the surface of the lightning rod 7 is swept, so that the dirt and other debris adhered to the surface are cleaned off in advance or made loose, laying the foundation for subsequent cleaning work.

[0046] As a further solution of the present invention, the side of the cleaning block 26 is fixedly connected to a second transverse plate 48, and the side of the second transverse plate 48 is fixedly connected to two sixth plates 49. The side of the sixth plate 49 is also provided with a semicircular groove, and the inner wall of the semicircular groove is slidably connected to a second long rod 50 that passes through the semicircular groove. The second long rod 50 is made of a soft material, and the two ends of the second long rod 50 are fixedly connected to the limited position circular block 45. The surface of the second long rod 50 is rotatably connected to a second rotating shell 51, and the surface of the second rotating shell 51 is fixedly connected to a scraper 52; when working, when the cleaning scraper 27 and the surface of the lightning rod 7 are in contact, the second long rod 50 is fixedly connected to the second rotating shell 51. When touched, the cleaning block 26 will synchronously drive the scraper 52 to contact the surface of the lightning rod 7 and be squeezed by the lightning rod 7. Under the action of the squeezing of the lightning rod 7, the second long rod 50 will be deformed so that it deforms into an arc that adapts to the surface of the lightning rod 7. In this way, the scraper 52 and the surface of the lightning rod 7 will be in full contact. Driven by the cleaning block 26, the scraper 52 will clean the surface of the lightning rod 7 that has not been cleaned by the cleaning scraper 27 again, and rotate and scrape to clean the metal oxide film and corrosion products on the surface, to ensure that the surface of the lightning rod 7 is cleaned more thoroughly and its conductive performance is fully restored.

[0047] As a further solution of the present invention, a second motor 53 is fixedly connected to the side of the first plate 4, the output shaft of the second motor 53 is fixedly connected to the circular plate 8, the inner wall of the cabin shell 1 is rotatably connected to the second roller 54, the side of the T-shaped slide plate 28 is fixedly connected to the third rope 55, the third rope 55 passes around the second roller 54 and the end thereof is fixedly connected to a cylindrical block 56, the inner wall of the cabin shell 1 is fixedly connected to the third motor 57, and the end of the output shaft of the third motor 57 is fixedly connected to the rotating shaft of the first roller 30; during operation, in order to ensure the rapid resetting of the lightning rod 7 and the equipment, after completing the cleaning work of the lightning rod 7 After that, start the third motor 57, and the third motor 57 pulls the weight block 32 to reset through the first roller 30 and the second rope 31. Due to the existence of the cylindrical block 56, the third motor 57 does not need much torque to reset the weight block 32. At the same time, the extrusion block 25 will enter the inclined surface of the straight rod 24 again, and will pull the cleaning block 26 to reset through the extrusion rod 22. At this time, start the second motor 53, and the output shaft of the second motor 53 drives the rectangular rod 6 to reset through the circular plate 8 and the first shaft 5, thereby realizing the reset of the lightning rod 7, and completing the reset work of the entire equipment.

[0048] As a further solution of the present invention, a dustproof shell 58 is fixedly connected to the top of the cabin shell 1, and two electric doors 59 are slidably connected to the top of the dustproof shell 58, and the rectangular rod 6 passes through the electric door 59; when working, by setting up structures such as the electric door 59, it is ensured that when the lightning rod 7 is not cleaned, the entire device except the lightning rod 7 is protected to prevent dust and rainwater from entering the device and causing damage to the device. When cleaning, the electric door 59 will automatically open.

Claims

1. A lightning protection device for a port wind turbine, comprising a nacelle shell (1), characterized in that: The bottom of the cabin shell (1) is rotatably connected to a round shell bracket (2), the side of the cabin shell (1) is rotatably connected to a fan blade (3), the side of the cabin shell (1) is fixedly connected to two first plates (4), the sides of the two first plates (4) are rotatably connected to a first shaft (5) penetrating the first plates (4), the surface of the first shaft (5) is fixedly connected to a rectangular rod (6), the end of the rectangular rod (6) is fixedly connected to a lightning rod (7), both ends of the first shaft (5) are fixedly connected to a circular plate (8), the circular plate (8) and the side of the first plate (4) are fixedly connected to a torsion spring (9), the bottom of the rectangular rod (6) is connected to a limit device for limiting the rotation of the rectangular rod (6), and the top of the cabin shell (1) is connected to a cleaning device for cleaning the surface of the lightning rod (7); The cleaning device comprises two third plates (16), the third plates (16) being fixedly connected to the top of the cabin shell (1), the side of the third plate (16) being slidably connected to a limit shaft (17) penetrating the third plate (16), the limit shaft (17) and the third plate (16) being fixedly connected to a limit spring (18), the side of the limit shaft (17) being fixedly connected to a special-shaped rod (19), the end of the special-shaped rod (19) being fixedly connected to a wedge block (20), and the surfaces of the two limit shafts (17) being slidably connected to a frame The frame (21) has two sides slidably connected to extrusion rods (22) penetrating the frame (21); the extrusion rods (22) and the frame (21) are fixedly connected to an extrusion spring (23); the top of the cabin shell (1) is fixedly connected to two straight rods (24); the ends of the straight rods (24) are provided with inclined surfaces; the ends of the extrusion rods (22) are fixedly connected to extrusion blocks (25); the extrusion blocks (25) are matched to the inclined surfaces; the ends of the extrusion rods (22) are fixedly connected to cleaning blocks (23); 26), the side of the cleaning block (26) is provided with an arc surface adapted to the surface of the lightning rod (7), a cleaning scraper (27) is fixedly connected to the arc surface, a T-shaped slide plate (28) is fixedly connected to the bottom of the frame (21), a through slide groove (29) is provided on the top of the cabin shell (1), the T-shaped slide plate (28) and the inner wall of the slide groove (29) are slidably connected, the inner wall of the cabin shell (1) is rotatably connected to a first roller (30), and the side of the T-shaped slide plate (28) is fixedly connected to a second rope (31 ), the second rope (31) passes over the first roller (30) and is fixedly connected to a weight block (32) at its end; a support plate (33) is fixedly connected to the top of the cabin shell (1); a groove (34) matching the surface of the rectangular rod (6) is provided on the side of the support plate (33); a fourth plate (35) is fixedly connected to the side of the support plate (33); a downward pressure shaft (36) penetrating the fourth plate (35) is slidably connected to the side of the fourth plate (35); an end of the downward pressure shaft (36) contacts the inclined surface of the wedge block (20).

2. A lightning protection device for a port wind turbine according to claim 1, characterized in that: The limiting device comprises a second plate (10), the second plate (10) and the cabin shell (1) are fixedly connected, a plug-in shaft (11) penetrating the second plate (10) is slidably connected to the side of the second plate (10), the end of the plug-in shaft (11) penetrates the rectangular rod (6), the plug-in shaft (11) and the second plate (10) are fixedly connected to a plug-in spring (12), the end of the plug-in shaft (11) is fixedly connected to a first rope (13), the end of the first rope (13) is fixedly connected to a first rotating wheel (14), the side of the cabin shell (1) is fixedly connected to a first motor (15), and the output shaft surface of the first motor (15) is fixedly connected to the first rotating wheel (14).

3. A lightning protection device for a port wind turbine according to claim 1, characterized in that: A rectangular block (37) is fixedly connected to the side of the cleaning block (26); a pressure rod (38) penetrating the rectangular block (37) is slidably connected to the side of the rectangular block (37); a pressure spring (39) is fixedly connected to the pressure rod (38) and the rectangular block (37); the other end of the pressure rod (38) is fixedly connected to an arc plate (40); and a small cleaning knife (41) is fixedly connected to the inner wall of the arc plate (40).

4. A lightning protection device for a port wind turbine according to claim 1, characterized in that: A first transverse plate (42) is fixedly connected to the side of the cleaning block (26), and two fifth plates (43) are fixedly connected to the side of the first transverse plate (42). A semicircular groove is provided on the side of the fifth plate (43), and a first long rod (44) penetrating the semicircular groove is slidably connected to the inner wall of the semicircular groove. The first long rod (44) is made of a soft material, and both ends of the first long rod (44) are respectively fixedly connected to limited position circular blocks (45). A first rotating shell (46) is rotatably connected to the surface of the first long rod (44), and a cleaning brush (47) is fixedly connected to the surface of the first rotating shell (46).

5. A lightning protection device for a port wind turbine according to claim 1, characterized in that: A second transverse plate (48) is fixedly connected to the side of the cleaning block (26), and two sixth plates (49) are fixedly connected to the side of the second transverse plate (48). A semicircular groove is also provided on the side of the sixth plate (49). A second long rod (50) penetrating the semicircular groove is slidably connected to the inner wall of the semicircular groove. The second long rod (50) is made of a soft material. Both ends of the second long rod (50) are respectively fixedly connected to the limited position circular block (45). A second rotating shell (51) is rotatably connected to the surface of the second long rod (50), and a scraper (52) is fixedly connected to the surface of the second rotating shell (51).

6. A lightning protection device for a port wind turbine according to claim 1, characterized in that: A second motor (53) is fixedly connected to the side of the first plate (4), an output shaft of the second motor (53) is fixedly connected to the circular plate (8), a second roller (54) is rotatably connected to the inner wall of the cabin shell (1), a third rope (55) is fixedly connected to the side of the T-shaped slide plate (28), the third rope (55) passes around the second roller (54) and an end portion of the third rope is fixedly connected to a cylindrical block (56), a third motor (57) is fixedly connected to the inner wall of the cabin shell (1), and an end portion of an output shaft of the third motor (57) is fixedly connected to the rotating shaft of the first roller (30).

7. A lightning protection device for a port wind turbine according to claim 1, characterized in that: A dustproof shell (58) is fixedly connected to the top of the nacelle shell (1), two electric doors (59) are slidably connected to the top of the dustproof shell (58), and the rectangular rod (6) passes through the electric doors (59).

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