A wind turbine blade de-icing device

Abstract

This invention relates to the field of ice removal devices, and discloses a wind turbine blade ice removal device, comprising a support rod and a plurality of wind turbine blades mounted on the support rod, and further comprising: a mounting part, wherein the mounting part is mounted on the wind turbine blades; two de-icing parts, both of which are mounted on the mounting part; the mounting part includes an adapter component one, wherein two adapter components one are mounted on the wind turbine blades; and an adapter component two, wherein two adapter components two are also mounted. This invention, by setting up the mounting part, solves the problem that existing ice removal devices, during use, struggle to achieve a complete and tight fit to blade surfaces with varying degrees of curvature, easily leading to loose clamping and uneven force at contact points. This not only affects operational stability but may also scratch the blade surface coating or damage the blade structure due to excessive local pressure.

Description

Technical Field

[0001] This invention relates to the field of ice removal device technology, specifically to an ice removal device for wind turbine blades. Background Technology

[0002] With the transformation of the global energy structure, wind power, as a clean and renewable energy source, is experiencing a significant increase in installed capacity year by year. However, wind turbines are typically installed in high-altitude, cold regions or offshore environments. These areas are prone to icing due to low winter temperatures and high humidity. Once ice forms on the surface of wind turbine blades, it not only alters the aerodynamic shape of the blades, leading to a significant decrease in power generation efficiency, but in severe cases, it can also cause aerodynamic imbalance, resulting in severe vibration of the unit, accelerated fatigue damage to the transmission chain, and even safety hazards such as runaway accidents or ice falls that could injure people. Therefore, efficient and safe wind turbine blade de-icing technology has become crucial for ensuring the stable operation of wind turbines in winter.

[0003] However, existing ice removal devices are difficult to achieve a complete and tight fit when facing blade surfaces with different degrees of curvature during use. This can easily lead to problems such as loose clamping and uneven force at the contact points, which not only affects the stability of operation but may also scratch the blade surface coating or damage the blade structure due to excessive local pressure. Summary of the Invention

[0004] The purpose of this invention is to provide a wind turbine blade ice removal device. By setting up an installation part, it solves the problem that existing ice removal devices are difficult to achieve a complete and tight fit when facing blade surfaces with different degrees of curvature. This leads to problems such as loose clamping and uneven force at the contact points, which not only affect the stability of operation, but may also scratch the blade surface coating or damage the blade structure due to excessive local pressure.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a wind turbine blade de-icing device, comprising a support rod and a plurality of wind turbine blades mounted on the support rod, and further comprising: a mounting part, the mounting part being mounted on the wind turbine blades; two de-icing parts, both mounted on the mounting part; the mounting part comprising an adapter component one, two of which are mounted on the wind turbine blades; two adapter components two, both mounted on the adapter component one; and a drive component, mounted on the support rod; each adapter component one comprises a hollow rod mounted on the wind turbine blades, with two sliding rods one fixedly connected to the inner wall of the hollow rod, and two sliders one slidably connected to the outer walls of the two sliding rods one, each outer wall of the two sliding rods one sleeved with a spring one, the two springs one having their opposite sides fixedly connected to the two sliders one, and the two sliders one having their opposite sides rotatably connected to friction wheels one, both friction wheels one contacting the hollow rod.

[0006] Furthermore, the de-icing section includes a sliding component mounted on the first adapter component; and a leveling component disposed on the sliding component, with the two de-icing sections arranged in a mirror image.

[0007] Furthermore, the second adapter component includes two fixing plates 1 disposed above the wind turbine blade. A bidirectional threaded rod is disposed through the two fixing plates 1. A friction wheel is rotatably connected to the outer wall of the bidirectional threaded rod. A pressing component is sleeved on the side of the bidirectional threaded rod that is far apart from each other. A locking component is disposed on the two bidirectional threaded rods. The pressing component consists of a washer and a spring. The locking component includes two locking blocks that are threaded to the outer wall of the bidirectional threaded rod. The locking blocks are hexagonal in shape and are in contact with the two pressing components.

[0008] Furthermore, the drive assembly includes a fixed plate two fixedly connected to the hollow rod, a rotating shaft passing through the fixed plate two, two friction rollers fixedly connected to the outer wall of the rotating shaft, the two friction rollers respectively contacting two friction wheels one, a drive component is provided on the wind turbine blade, and anti-slip grooves are provided on the outer wall of the friction wheels, thereby the friction between the friction wheels and the friction wheels one is very large. The drive component includes a motor fixedly connected to the rotating shaft through a coupling, a motor bracket fixedly connected to the outer wall of the motor, and the motor bracket fixedly connected to the corresponding fixed plate one.

[0009] Furthermore, the sliding assembly includes a fixed shell fixedly connected to a hollow rod, a slider two slidably connected to the inner wall of the fixed shell, a sliding rod two passing through the slider two, the sliding rod two being fixedly connected to the inner wall of the fixed shell, two springs two being sleeved on the sliding rod two, the sides of the two springs two that are far apart from each other being fixedly connected to the fixed shell, and the sides of the two springs two that are close to each other being fixedly connected to the slider two, and a T-shaped sliding groove is provided on the fixed shell, the slider two being adapted to the T-shaped sliding groove of the fixed shell.

[0010] Furthermore, the leveling assembly includes a rotating rod rotatably connected to the second slider. A fixed frame is fixedly connected to the outer wall of the rotating rod. Two leveling wheels are rotatably connected to the fixed frame. An ice-scraping plate is fixedly connected to the right side of the rotating rod. The leveling wheels are in contact with the wind turbine blades and are used to maintain the distance between the ice-scraping plate and the wind turbine blades.

[0011] The present invention has the following beneficial effects: 1. This invention, through the installation section, utilizes a bidirectional threaded rod in conjunction with a locking block and a pressing assembly to drive the hollow rods on both sides to move towards each other during the installation phase. During this process, a spring assembly pushes the slider and friction wheel to first contact the wind turbine blade surface, subsequently driving the friction wheel to further adhere to the blade. The device is fixed to the blade using multi-point contact clamping force, and can adapt to the blade's curvature and cross-sectional dimensions. During operation, the motor on the motor bracket drives the rotating shaft to rotate, thereby rotating the friction roller. The friction roller transmits torque to the friction wheel through friction, driving the hollow rod assembly to reciprocate on the wind turbine blade surface, thus moving the entire device along the blade's length. This allows the friction wheel and friction wheel to closely adhere to blade surfaces with varying degrees of curvature, effectively solving the adaptation problem of complex wind turbine blade airfoils and large curvature variations. It can also adapt to wind turbine blades of various sizes and specifications without requiring custom clamps for specific blades.

[0012] 2. This invention incorporates a de-icing section that moves synchronously along the wind turbine blade with the hollow rod during de-icing operations. While the ice-scraping plate contacts the ice layer for cleaning, a leveling wheel continuously contacts the blade surface for detection. If the blade surface experiences a protrusion or thickness change, the leveling wheel is compressed, causing the fixed frame and rotating rod to move upwards. Simultaneously, it drives the second slider to slide within the fixed housing and compress or stretch the second spring, utilizing the elastic deformation of the spring to absorb the impact displacement. If the blade surface is tilted, the leveling wheel causes the fixed frame and rotating rod to deflect around the axis. Through this combined translational buffering and angular deflection motion, the ice-scraping plate can always conform to the curved contour of the blade for de-icing operations. This achieves real-time dynamic tracking of the ice-scraping plate to the complex airfoil and curvature changes of the wind turbine blade, ensuring that the ice-scraping plate maintains the optimal contact angle and pressure with the blade surface throughout the entire operation, effectively avoiding problems of missed or excessive cutting caused by rigid contact.

[0013] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a partial structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a partial structural diagram of the driving component of the present invention; Figure 4 This is a partial cross-sectional view of the de-icing section of the present invention; Figure 5 This is a partial cross-sectional view of the second adaptable component of the present invention; Figure 6 This is a partial cross-sectional view of the first adapter component of the present invention; Figure 7 For the present invention Figure 4 A magnified structural diagram of A in the middle.

[0016] The attached diagram lists the components represented by each number as follows: In the diagram: 111, Support rod; 112, Wind turbine blade; 2, Mounting section; 21, Adaptor component one; 211, Hollow rod; 212, Slide rod one; 213, Slider one; 214, Spring one; 215, Friction wheel one; 22, Adaptor component two; 221, Fixing plate one; 222, Bidirectional threaded rod; 223, Friction wheel; 224, Extrusion assembly; 225, Locking block; 23, Drive assembly; 231, Fixing plate two; 232, Rotating shaft; 233, Friction roller; 234, Motor; 235, Motor bracket; 3, De-icing section; 31, Sliding assembly; 311, Fixing shell; 312, Slider two; 313, Slide rod two; 314, Spring two; 32, Leveling assembly; 321, Rotating rod; 322, Fixing frame; 323, Leveling wheel; 324, Ice scraper plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-7 As shown, the present invention is a wind turbine blade de-icing device, including a support rod 111 and a plurality of wind turbine blades 112 disposed on the support rod 111, and further including: a mounting part 2, which is mounted on the wind turbine blades 112; and two de-icing parts 3, both of which are disposed on the mounting part 2. Mounting section 2 includes adapter component 1 21, of which two are provided, both of which are mounted on the wind turbine blade 112; adapter component 22, of which two are provided, both of which are mounted on adapter component 1 21; and drive component 23, which is mounted on support rod 111. Adapter component 1 21 includes a hollow rod 211 mounted on the wind turbine blade 112. Two sliding rods 212 are fixedly connected to the inner wall of the hollow rod 211, and sliders 213 are slidably connected to the outer walls of both sliding rods 212. The outer wall of the first 212 is fitted with springs 214. The sides of the two springs 214 that are far apart from each other are fixedly connected to two sliders 213. Friction wheels 215 are rotatably connected to the sides of the two sliders 213 that are far apart from each other. Both friction wheels 215 are in contact with the hollow rod 211. The adapter component 22 includes two fixing plates 221 positioned above the wind turbine blade 112. Bidirectional threaded rods 222 are threaded through the two fixing plates 221. Friction wheels 223 are rotatably connected to the outer wall of the bidirectional threaded rods 222. The sides of the bidirectional threaded rods 222 that are far apart from each other are... The device is fitted with an extrusion assembly 224. Locking elements are mounted on two bidirectional threaded rods 222. The extrusion assembly 224 consists of a washer and a spring. The locking elements include two locking blocks 225 threaded to the outer wall of the bidirectional threaded rods 222. The locking blocks 225 are hexagonal in shape and contact the two extrusion assemblies 224. The drive assembly 23 includes a fixing plate 231 fixedly connected to a hollow rod 211. A rotating shaft 232 is threaded through the fixing plate 231. Two friction rollers 233 are fixedly connected to the outer wall of the rotating shaft 232. The two friction rollers 233 are respectively connected to two friction wheels 215. The wind turbine blade 112 is equipped with a drive component, and the outer wall of the friction wheel 223 is provided with anti-slip grooves, thereby increasing the friction between the friction wheel 223 and the friction wheel 215. The drive component includes a motor 234 fixedly connected to the rotating shaft 232 via a coupling. The outer wall of the motor 234 is fixedly connected to a motor bracket 235, and the motor bracket 235 is fixedly connected to the corresponding fixing plate 221. By setting the mounting part 2, the problem of adapting to the complex airfoil and large curvature of the wind turbine blade is effectively solved, and it can also adapt to wind turbine blades of various sizes and specifications without the need to customize clamps for specific blades.

[0019] The de-icing unit 3 includes a sliding assembly 31, which is mounted on the adapter assembly 21; and a leveling assembly 32, which is mounted on the sliding assembly 31. The two de-icing units 3 are arranged in a mirror image. The sliding assembly 31 includes a fixed shell 311 fixedly connected to the hollow rod 211. A slider 312 is slidably connected to the inner wall of the fixed shell 311. A sliding rod 313 is passed through the slider 312 and fixedly connected to the inner wall of the fixed shell 311. Two springs 314 are sleeved on the sliding rod 313. The sides of the two springs 314 that are far apart from each other are fixedly connected to the fixed shell 311, and the sides of the two springs 314 that are close to each other are fixedly connected to the slider 312. The 11 is provided with a T-shaped groove, and the second slider 312 is adapted to the T-shaped groove of the fixed shell 311. The leveling component 32 includes a rotating rod 321 rotatably connected to the second slider 312. A fixed frame 322 is fixedly connected to the outer wall of the rotating rod 321. Two leveling wheels 323 are rotatably connected to the fixed frame 322. An ice scraper 324 is fixedly connected to the right side of the rotating rod 321. The leveling wheel 323 is in contact with the wind turbine blade 112. The leveling wheel 323 is used to maintain the distance between the ice scraper 324 and the wind turbine blade 112. By setting the de-icing part 3, it is ensured that the ice scraper and the blade surface always maintain the best contact angle and pressure during the entire operation, effectively avoiding the problem of missed removal or excessive cutting caused by rigid contact.

[0020] It should be noted that the control of motor 234 in this application can be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be implemented using existing technologies, such as PLC.

[0021] In use, first install the hollow rod 211 onto the corresponding wind turbine blade 112. During installation, place two hollow rods 211 on both sides of the wind turbine blade 112. Then, pass the bidirectional threaded rod 222 through the two corresponding fixing plates 221. Next, fit the extrusion assembly 224 onto one end of the bidirectional threaded rod 222. Then, install the locking block 225 onto the bidirectional threaded rod 222 via threads and tighten the locking block 225. At this time, the locking blocks 225 at both ends will extrude the extrusion assembly 224. During extrusion, the two fixing plates 221 will move closer to each other, and the hollow rod 211 will also move accordingly. As the hollow rods 211 move closer to each other, the two friction wheels 215 will first contact the wind turbine blade 112. After contact, the spring 214 will pull the slider 213 in the hollow... The rod 211 slides inside, and as it slides, the fixing plates 221 on both sides will bring the friction wheel 223 closer to the wind turbine blade 112. After the friction wheel 223 contacts the wind turbine blade 112, the hollow rod 211 can be fixed on the wind turbine blade 112 by the two friction wheels 223 and several friction wheels 215, thus achieving the installation effect. It can not only adapt to the curvature of the wind turbine blade 112, but also adapt to various sizes of wind turbine blades 112. After the installation is completed, the motor 234 on the motor bracket 235 is started. At this time, the rotating shaft 232 will rotate with the friction roller 233. When rotating, the friction roller 233 will rotate with the friction wheel 215 through friction. When the friction wheel 215 rotates, it will bring the hollow rod 211 back and forth on the wind turbine blade 112. When the hollow rod 211 moves, the de-icing section 3 also moves accordingly. When the hollow rod 211 moves forward, the ice scraper 324 moves forward as well. During the movement, the leveling wheel 323 maintains continuous contact with the wind turbine blade 112. When encountering a protrusion, the leveling wheel 323 will move upward along with the ice scraper 324, the fixing frame 322, and the rotating rod 321. When the fixing frame 322 moves upward, the slider 312 will slide on the fixing shell 311. As the slider 312 slides, it will compress or stretch the corresponding spring 314. When the leveling wheel 323 encounters an inclination, it will also rotate along with the fixing frame 322 and the rotating rod 321, thereby adapting to the bending degree of the wind turbine blade 112 and thus preventing damage to the wind turbine blade 112.

[0022] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wind turbine blade de-icing device, comprising a support rod (111) and a plurality of wind turbine blades (112) disposed on the support rod (111), characterized in that, Also includes: Mounting part (2), which is mounted on wind turbine blade (112); De-icing section (3), two de-icing sections (3) are provided, and both de-icing sections (3) are provided on the mounting section (2); The installation part (2) includes an adapter component (21), and there are two adapter components (21), both of which are installed on the wind turbine blade (112). There are two adapter components (22), and both adapter components (22) are set on adapter component one (21); as well as A drive assembly (23) is mounted on a support rod (111); The adapter component 1 (21) includes a hollow rod (211) disposed on the wind turbine blade (112). Two sliding rods 1 (212) are fixedly connected to the inner wall of the hollow rod (211). Sliding blocks 1 (213) are slidably connected to the outer walls of the two sliding rods 1 (212). Springs 1 (214) are sleeved on the outer walls of the two sliding rods 1 (212). The two springs 1 (214) are fixedly connected to the two sliding blocks 1 (213) respectively on the side away from each other. Friction wheels 1 (215) are rotatably connected to the side away from each other of the two sliding blocks 1 (213). Both friction wheels (215) are in contact with the hollow rod (211).

2. The wind turbine blade de-icing device according to claim 1, characterized in that, The de-icing section (3) includes a sliding assembly (31) mounted on the adapter assembly (21); and A leveling component (32) is disposed on a sliding component (31); The two de-icing sections (3) are arranged in a mirror image.

3. The wind turbine blade de-icing device according to claim 1, characterized in that, The adapter component 2 (22) includes two fixing plates 1 (221) disposed above the wind turbine blade (112). Two bidirectional threaded rods (222) are provided through the two fixing plates 1 (221). Friction wheels (223) are rotatably connected to the outer wall of the bidirectional threaded rods (222). Each side of the bidirectional threaded rods (222) that is far apart from each other is fitted with a pressing component (224). Locking components are provided on the two bidirectional threaded rods (222). The extrusion assembly (224) consists of a gasket and a spring.

4. The wind turbine blade de-icing device according to claim 1, characterized in that, The drive assembly (23) includes a fixed plate two (231) fixedly connected to the hollow rod (211), a rotating shaft (232) is provided through the fixed plate two (231), two friction rollers (233) are fixedly connected to the outer wall of the rotating shaft (232), the two friction rollers (233) are respectively in contact with two friction wheels (215), and a drive component is provided on the wind turbine blade (112); The outer wall of the friction wheel (223) is provided with anti-slip grooves, so the friction between the friction wheel (223) and the first friction wheel (215) is very large.

5. The wind turbine blade de-icing device according to claim 2, characterized in that, The sliding assembly (31) includes a fixed shell (311) fixedly connected to a hollow rod (211). A slider (312) is slidably connected to the inner wall of the fixed shell (311). A slider (313) is provided through the slider (312). The slider (313) is fixedly connected to the inner wall of the fixed shell (311). Two springs (314) are sleeved on the slider (313). The two springs (314) are fixedly connected to the fixed shell (311) on the side that is far apart from each other. The two springs (314) are fixedly connected to the slider (312) on the side that is close to each other. The fixed shell (311) is provided with a T-shaped groove, and the slider (312) is adapted to the T-shaped groove of the fixed shell (311).

6. The wind turbine blade de-icing device according to claim 2, characterized in that, The leveling component (32) includes a rotating rod (321) rotatably connected to the second slider (312). A fixed frame (322) is fixedly connected to the outer wall of the rotating rod (321). Two leveling wheels (323) are rotatably connected to the fixed frame (322). An ice scraper (324) is fixedly connected to the right side of the rotating rod (321). The leveling wheel (323) is in contact with the wind turbine blade (112), and the leveling wheel (323) is used to maintain the distance between the ice scraper (324) and the wind turbine blade (112).

7. The wind turbine blade de-icing device according to claim 3, characterized in that, The locking element includes two locking blocks (225) threadedly connected to the outer wall of the bidirectional threaded rod (222); The locking block (225) is hexagonal in shape and is in contact with the two pressing components (224).

8. The wind turbine blade de-icing device according to claim 4, characterized in that, The driving component includes a motor (234) fixedly connected to the rotating shaft (232) via a coupling, and a motor bracket (235) is fixedly connected to the outer wall of the motor (234). Among them, the motor bracket (235) is fixedly connected to the corresponding fixing plate (221).

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