A loess region wind turbine blade sand removal cleaning device

Abstract

The utility model discloses a loess area wind power plant fan blade sand cleaning device, especially relates to loess area wind power plant technical field, including C type frame, C type frame symmetry is provided with two, two hooks of two C type frame top surface fixed connection respectively, and two hooks of two C type frame top surface fixed connection respectively, two C type frame inside is provided with through slot, and the inside setting of through slot has adjusting assembly, C type frame inside is provided with cleaning assembly, and cleaning assembly includes the stud bolt of double -end thread located in C type frame inside and two sliding blocks, two sliding blocks symmetry sets up, through cleaning assembly, and the special nylon silk brush hair of inclining setting is used to the brush, can more accurately adhere fan blade wind gathering place etc. sand key area, realizes the effective cleaning of the sand accumulation in the device downward movement process, simultaneously, the relative movement of connecting frame and connecting plate driven by sliding block can adapt to the shape of different positions of blade, further ensure the comprehensiveness of cleaning.

Description

Technical Field

[0001] This utility model relates to the field of wind farm technology in loess areas, and in particular to a sand removal and cleaning device for wind turbine blades in loess areas. Background Technology

[0002] As the global energy structure shifts towards cleaner energy, wind power, as a clean and renewable energy source, is playing an increasingly important role in the energy supply system. my country's loess regions (such as northern Shaanxi, eastern Gansu, and western Shanxi) possess abundant wind energy resources, and a large number of wind farms have been built and put into operation in recent years, making them an important base for wind power development in my country. However, the unique geographical and climatic environment of the loess regions poses severe challenges to the stable operation of wind turbines, with sand accumulation on turbine blades being particularly prominent, becoming a key factor restricting the power generation efficiency and equipment lifespan of wind farms in this region.

[0003] Currently, most existing wind turbine blade cleaning methods utilize aerial work platforms or rope hoists, with workers manually removing sand using handheld high-pressure water guns and cleaning brushes. While this method achieves targeted cleaning, it is unsafe due to the harsh working environment (often accompanied by 3-5 level gusts year-round, and winter temperatures reaching -25°C) in remote mountainous areas of loess regions. Furthermore, cleaning a single wind turbine blade requires 2-3 people and takes 4-6 hours, resulting in extremely low efficiency. Therefore, this paper proposes a sand removal and cleaning device for wind turbine blades in loess regions. Utility Model Content

[0004] The main objective of this invention is to provide a sand removal and cleaning device for wind turbine blades in wind farms in loess areas, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A sand removal and cleaning device for wind turbine blades in a wind farm in a loess area includes two C-shaped frames arranged symmetrically. Two hooks are fixedly connected to the top surfaces of the two C-shaped frames respectively; And two hooks fixedly connected to the top surfaces of the two C-shaped frames respectively, and through slots are provided inside the two C-shaped frames, with adjustment components provided inside the through slots; A cleaning component is provided inside the C-shaped frame; The cleaning assembly includes a double-threaded rod located inside the C-shaped frame and two sliders. The two sliders are symmetrically arranged, and a connecting frame and a connecting plate are provided between the two sliders. A brush is fixedly connected to the bottom surface of the connecting frame and the bottom surface of the connecting plate.

[0006] Preferably, the rear end face of the double-ended threaded rod extends through the two disjoint surfaces of the sliders to the rear side of the two sliders. The sides of the two sliders are slidably connected to the inner side of the C-shaped frame. A motor is fixedly connected to the right side of the C-shaped frame. The left end face of the motor output rod extends through the right side of the C-shaped frame to the inner side of the C-shaped frame. A rotating rod is fixedly connected to the left end face of the motor output rod. Both the surface of the rotating rod and the surface of the double-ended threaded rod are fixedly fitted with bevel gears. The inclined surfaces of the two bevel gears mesh. The front and rear end faces of the double-ended threaded rod are rotatably connected to the inner side of the C-shaped frame through bearing seats, respectively.

[0007] Preferably, the brush bristles are angled and are made of special nylon bristles.

[0008] Preferably, a clamping plate is fixedly connected to the left side of each of the two sliders, and a first protective plate is fixedly connected to the adjacent side of each of the two clamping plates.

[0009] Preferably, a second protective plate is fixedly connected to both the left side of the connecting frame and the left side of the connecting plate, and both the first and second protective plates are made of rubber.

[0010] Preferably, the rear end face of the connecting frame and the front end face of the connecting plate are fixedly connected to the adjacent surfaces of the two sliders, the rear end face of the connecting plate slides through the front side of the connecting frame and extends to the inside of the connecting frame, and the bottom surface of the connecting frame is provided with a through groove that matches the connecting plate.

[0011] Preferably, the adjustment assembly includes a slide rod and a slide plate located inside the through groove. The slide plate and the slide rod are respectively located inside two through grooves. The left end face of the slide rod slides through the inner wall of the right through groove and the right side of the left C-shaped frame to the inside of the left through groove. The left end face of the slide rod is fixedly connected to the right side of the slide plate. A spring is sleeved on the surface of the slide rod. The left and right end faces of the spring are fixedly connected to the right side of the slide plate and the right side of the inside of the left through groove, respectively.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The cleaning components utilize a brush with specially designed angled nylon bristles, allowing for more precise contact with key areas prone to sand accumulation, such as the wind-gathering points on the wind turbine blades. This enables effective sand removal as the device moves downwards. Simultaneously, the slider moves the connecting frame and connecting plate relative to each other, adapting to different blade shapes to ensure comprehensive cleaning. Furthermore, the device employs drone mounting and rope-assisted securing to perform sand removal operations, eliminating the need for workers to perform high-altitude work. This effectively mitigates the safety risks of working at heights in harsh environments (such as gusts of wind and low temperatures) in remote mountainous areas of the Loess Plateau, ensuring the safety of personnel. 2. The device automatically operates the cleaning components driven by a motor, and can gradually move down under the action of gravity to complete the sand removal work at different positions of the blades, which greatly reduces the manpower input and operation time, and significantly improves the sand removal and cleaning efficiency of a single wind turbine blade. 3. By adjusting the components, the sliding rod, sliding plate and spring work together to make the two C-shaped frames open and close flexibly, so that they can be smoothly fitted onto the fan blades and adapt to the shape changes of the blades during the cleaning process, thus enhancing the device's adaptability to different fan blades. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall front view of this utility model; Figure 2 This is a perspective view of the entire utility model from below; Figure 3 This is a top sectional perspective view of the present invention; Figure 4 This is a perspective view of the double-ended threaded rod of this utility model. Figure 5 This is a bottom-view perspective view of the connecting plate of this utility model.

[0014] In the diagram: 1. C-shaped frame; 2. Hook; 3. Hook; 40. Adjustment assembly; 401. Slide rod; 402. Slide plate; 403. Spring; 41. Cleaning assembly; 411. Motor; 412. Rotating rod; 413. Double-ended threaded rod; 414. Bevel gear; 415. Slider; 416. Clamping plate; 417. First protective plate; 418. Connecting frame; 419. Connecting plate; 4110. Brush; 4111. Second protective plate. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Example 1: Please refer to Figure 1 - Figure 5 This utility model provides a technical solution: a sand removal and cleaning device for wind turbine blades in a wind farm in a loess area, which includes a C-shaped frame 1, and two C-shaped frames 1 are symmetrically arranged. Two hooks 2 are fixedly connected to the top surface of the two C-shaped frames 1 respectively; And two hooks 3 are fixedly connected to the top surface of the two C-shaped frames 1 respectively. The two C-shaped frames 1 have through grooves inside, and adjustment components 40 are installed inside the through grooves. A cleaning component 41 is provided on the inner side of the C-shaped frame 1; The cleaning component 41 includes a double-ended threaded rod 413 located inside the C-shaped frame 1 and two sliders 415. The two sliders 415 are symmetrically arranged, and a connecting frame 418 and a connecting plate 419 are provided between the two sliders 415. A brush 4110 is fixedly connected to the bottom surface of the connecting frame 418 and the bottom surface of the connecting plate 419.

[0017] The threaded rear end face of the double-ended threaded rod 413 extends through the disjoint surfaces of two sliders 415 to the rear side of the two sliders 415. The sides of the two sliders 415 are slidably connected to the inner side of the C-shaped frame 1. A motor 411 is fixedly connected to the right side of the C-shaped frame 1. The left end face of the output rod of the motor 411 extends through the right side of the C-shaped frame 1 to the inner side of the C-shaped frame 1. A miniature power supply is installed on the C-shaped frame 1 to power the motor 411 (the miniature power supply is not shown in the figure). A rotating rod 412 is fixedly connected to the left end face of the output rod of the motor 411. Bevel gears 414 are fixedly fitted on the surface of the rotating rod 412 and the surface of the double-ended threaded rod 413. The two bevel gears 414 mesh at an inclined plane. The front and rear ends of the double-ended threaded rod 413 are respectively connected by bearing seats. The brush 4110, which is rotatably connected to the inner side of the C-shaped frame 1, uses a special nylon bristle with an inclined setting through the cleaning component 41. This allows it to more accurately fit the key areas where sand accumulates, such as the wind-gathering point of the wind turbine blades, and effectively clean the sand as the device moves downward. At the same time, the slider 415 drives the relative movement of the connecting frame 418 and the connecting plate 419, which can adapt to the shape of different positions of the blades, further ensuring the comprehensiveness of the cleaning. In addition, the device can carry out sand removal and cleaning operations by means of drone mounting and rope-assisted fixation, eliminating the need for workers to work at heights. This effectively avoids the safety risks of working at heights in the harsh environment (such as gusts of wind and low temperatures) in remote mountainous areas of the Loess Plateau, and ensures the personal safety of the workers.

[0018] The brush 4110 has an inclined bristle setting, and the brush 4110 bristles are made of special nylon filaments, which improves the cleaning effect of the brush 4110 on the wind turbine blades.

[0019] Both sliders 415 have clamps 416 fixedly connected to their left sides, and both clamps 416 have first protective plates 417 fixedly connected to their adjacent sides.

[0020] The left side of the connecting frame 418 and the left side of the connecting plate 419 are both fixedly connected to the second protective plate 4111. The first protective plate 417 and the second protective plate 4111 are both made of rubber. The use of rubber in the first protective plate 417 and the second protective plate 4111 can effectively buffer the impact force during the clamping of the blades and the contact between the device and the blades, so as to avoid scratching or damage to the surface of the fan blades and ensure the integrity of the fan equipment.

[0021] The rear end face of the connecting frame 418 and the front end face of the connecting plate 419 are fixedly connected to the adjacent surfaces of the two sliders 415 respectively. The rear end face of the connecting plate 419 slides through the front side of the connecting frame 418 and extends to the inside of the connecting frame 418. The bottom surface of the connecting frame 418 is provided with a slot that fits the connecting plate 419. The device drives the cleaning component 41 to operate automatically through the motor 411, and can gradually move down under the action of gravity to complete the sand removal work at different positions of the blades, which greatly reduces the manpower input and operation time, and significantly improves the sand removal and cleaning efficiency of a single wind turbine blade.

[0022] Example 2: Based on Example 1, a preferred embodiment of the sand removal and cleaning device for wind turbine blades in a loess area provided by this utility model is as follows: Figure 1 , Figure 2 and Figure 4 As shown: The adjustment assembly 40 includes a slide rod 401 and a slide plate 402 located inside the through slots. The slide plate 402 and the slide rod 401 are located inside the two through slots respectively. The left end face of the slide rod 401 slides through the inner wall of the right through slot and the right side of the left C-shaped frame 1, extending into the left through slot. The left end face of the slide rod 401 is fixedly connected to the right side of the slide plate 402. A spring 403 is sleeved on the surface of the slide rod 401. The left and right end faces of the spring 403 are fixedly connected to the right side of the slide plate 402 and the right side of the left through slot respectively. By adjusting the assembly 40, the slide rod 401, the slide plate 402 and the spring 403 cooperate with each other to realize the flexible opening and closing of the two C-shaped frames 1, so that they can be smoothly fitted onto the fan blades and adapt to the shape changes of the blades during the cleaning process, thereby enhancing the device's adaptability to different fan blades.

[0023] It should be noted that the specific installation method of the motor and the micro power supply, the circuit connection method, and the control method used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0024] The working principle of this utility model is as follows: In use, first, control the wind turbine blades vertically downwards and lock the main shaft. Then, install two pulleys on the main shaft of the wind turbine blades, and use two ropes (to prevent the C-frame 1 from falling directly to the ground after cleaning the wind turbine blades) to pass through the two pulleys and tie them to the two hooks. The other end of the ropes is fixed to the wind turbine tower. Use the hooks to suspend the hooks on the base frames of two drones. With the two drones relatively far apart, the sliding rod 401 drives the sliding plate 402 to the right, thereby compressing the spring 403, which in turn causes the two C-frames 1 to move away from each other and control the two drones to move upwards, ensuring that the two C-frames 1 pass through the wind turbine blades from top to bottom until the two C-frames 1 move to the top of the wind turbine blades. Release the drones from the hooks, tighten the ropes, and the two C-frames 1 will move closer to each other under the force of the spring 403, so that the two C-frames 1 are positioned at the top of the wind turbine blades. Turn on the motor 411, and the output rod of the motor 411 will... The drive rod 412 rotates, causing the bevel gear 414 to rotate. Through the meshing transmission of the two bevel gears 414, the double-headed threaded rod 413 rotates, which in turn causes the two sliders 415 to move closer to each other, and causes the two clamping plates 416 to move closer to each other and clamp and fix them on the fan blades. When the two sliders 415 move closer to each other, the connecting plate 419 moves inward to the connecting frame 418. Since a large amount of sand and dust mainly accumulates at the wind collection point of the fan blades during use, the pull rope is slowly loosened and the motor 411 is turned on, causing the clamping plate 416 to disengage from the blades at one point. The C-shaped frame 1 moves downward under the action of gravity, causing the brush 4110 bristles to clean the sand and dust at the wind collection point of the fan blades during the downward movement. As the C-shaped frame 1 moves downward, it will squeeze the C-shaped frame 1, causing the two C-shaped frames 1 to move away from each other. As the brush 4110 moves downward, it continuously cleans the sand and dust at different locations at the wind collection point of the fan blades.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sand removal and cleaning device for wind turbine blades in a wind farm in a loess area, comprising two C-shaped frames (1) symmetrically arranged; Two hooks (2) are fixedly connected to the top surface of the two C-shaped frames (1); And two hooks (3) respectively fixedly connected to the top surface of the two C-shaped frames (1), characterized in that: The two C-shaped frames (1) have through slots inside, and adjustment components (40) are provided inside the through slots. A cleaning component (41) is provided on the inner side of the C-shaped frame (1); The cleaning component (41) includes a double-headed threaded rod (413) located inside the C-shaped frame (1) and two sliders (415). The two sliders (415) are symmetrically arranged, and a connecting frame (418) and a connecting plate (419) are provided between the two sliders (415). A brush (4110) is fixedly connected to the bottom surface of the connecting frame (418) and the bottom surface of the connecting plate (419).

2. The sand removal and cleaning device for wind turbine blades in a loess area according to claim 1, characterized in that: The rear end face of the double-ended threaded rod (413) extends through the two sliders (415) to the rear side of the two sliders (415). The sides of the two sliders (415) are slidably connected to the inner side of the C-shaped frame (1). A motor (411) is fixedly connected to the right side of the C-shaped frame (1). The left end face of the output rod of the motor (411) extends through the right side of the C-shaped frame (1) to the inner side of the C-shaped frame (1). A rotating rod (412) is fixedly connected to the left end face of the output rod of the motor (411). Both the surface of the rotating rod (412) and the surface of the double-ended threaded rod (413) are fixedly fitted with bevel gears (414). The two bevel gears (414) mesh on their inclined surfaces. The front and rear ends of the double-ended threaded rod (413) are rotatably connected to the inner side of the C-shaped frame (1) through bearing seats.

3. The sand removal and cleaning device for wind turbine blades in a loess area according to claim 1, characterized in that: The brush (4110) has bristles that are angled and are made of special nylon bristles.

4. A sand removal and cleaning device for wind turbine blades in a loess area according to claim 2, characterized in that: Both sliders (415) are fixedly connected to a clamping plate (416) on their left side, and the adjacent surfaces of the two clamping plates (416) are fixedly connected to a first protective plate (417).

5. A sand removal and cleaning device for wind turbine blades in a loess area according to claim 4, characterized in that: The left side of the connecting frame (418) and the left side of the connecting plate (419) are both fixedly connected to a second protective plate (4111). The first protective plate (417) and the second protective plate (4111) are both made of rubber.

6. A sand removal and cleaning device for wind turbine blades in a loess area according to claim 2, characterized in that: The rear end face of the connecting frame (418) and the front end face of the connecting plate (419) are fixedly connected to the adjacent surfaces of the two sliders (415), respectively. The rear end face of the connecting plate (419) slides through the front side of the connecting frame (418) and extends to the inside of the connecting frame (418). The bottom surface of the connecting frame (418) is provided with a slot that is compatible with the connecting plate (419).

7. A sand removal and cleaning device for wind turbine blades in a loess area according to claim 1, characterized in that: The adjustment assembly (40) includes a slide rod (401) and a slide plate (402) located inside the through slot. The slide plate (402) and the slide rod (401) are located inside the two through slots respectively. The left end face of the slide rod (401) slides through the inner wall of the right through slot and the right side of the left C-shaped frame (1) to the inside of the left through slot. The left end face of the slide rod (401) is fixedly connected to the right side of the slide plate (402). A spring (403) is sleeved on the surface of the slide rod (401). The left and right end faces of the spring (403) are fixedly connected to the right side of the slide plate (402) and the right side of the inside of the left through slot respectively.

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