A device for automatically cleaning the tower of a wind turbine

Abstract

The present invention discloses a device for automatically cleaning a wind turbine tower, comprising: a lifting system, a cleaning system, a water jet system, a control system and auxiliary accessories; the lifting system comprises a main frame, a hoist for lifting and lowering the device and a magnetic component for providing an adsorption force; the cleaning system is used to scrub the surface of the wind turbine tower; the water jet system is used to soften the cleaning brush in the cleaning system and soften or wash away dirt on the surface of the wind turbine tower; the control system is used to control the lifting and rotation of the device, the cleaning action and the spraying of the water jet system. The device for automatically cleaning a wind turbine tower provided by the present invention can realize the automation of the wind turbine tower cleaning process, replace manual high-altitude operations, and avoid the occurrence of dangerous situations; and can also improve work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and more particularly to a device for automatically cleaning a tower of a wind turbine generator set. Background Art

[0002] Wind power generation converts the kinetic energy of wind into electrical energy. As a clean energy source, wind energy is increasingly valued by countries around the world. my country is rich in wind energy resources, with exploitable wind energy reserves of approximately 1 billion kW. In recent years, my country's wind power industry has developed rapidly.

[0003] With the development of wind power industry, the number of wind turbines is increasing. However, since wind turbine towers are located outdoors for a long time, dirt is easily attached to the surface or the surface is damaged, which not only affects the appearance, but also may affect the rotation of the blades, thereby affecting the efficiency of wind power generation and the service life of the wind turbine.

[0004] In the prior art, when cleaning or repainting the wind turbine tower, it is generally done by hanging it and performing manual high-altitude operations. This cleaning or repainting method has great safety hazards and is very likely to cause safety accidents. In addition, the workers' high-altitude operations are labor-intensive and easily fatigued, which is not good for their health. In addition, high-altitude operations are difficult and require more psychological pressure during the work process, so the work efficiency is relatively low, which increases the cleaning and maintenance costs of the wind turbine tower.

[0005] In summary, how to provide a device that can automatically clean the tower of a wind turbine generator set is a problem that urgently needs to be solved by those skilled in the art. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a device for automatically cleaning the tower of a wind turbine generator set, which replaces the manual high-altitude operation method, thereby avoiding danger and improving work efficiency.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A device for automatically cleaning a wind turbine tower, characterized in that it comprises: a lifting system, a cleaning system, a water jet system and a control system, wherein the cleaning system, the water jet system and the control system are all connected to the lifting system;

[0009] The lifting system includes a main frame, a hoist for lifting the device, and a magnetic component for providing an adsorption force to make the cleaning system fit the surface of the wind turbine tower, and the hoist and the magnetic component are both installed on the main frame;

[0010] The cleaning system is used to scrub the surface of the wind turbine tower;

[0011] The water jet system is used to soften or wash away dirt on the surface of the wind turbine tower;

[0012] The control system is used to control the lifting and rotation of the equipment, the cleaning action of the cleaning system and the spraying of the water jet system.

[0013] Preferably, the cleaning system includes a cleaning brush and an articulated brush arm for mounting the cleaning brush, the articulated brush arm includes at least two hinged movable arms, and the movable arm is provided with an elastic component for retracting the movable arm toward a side where the cleaning brush is mounted.

[0014] Preferably, the cleaning brush comprises a brush head and a mounting plate for mounting the brush head, the mounting plate is connected to the articulated brush arm, and the mounting plate is a mounting plate made of soft iron material.

[0015] Preferably, a central brush arm is provided on the articulated brush arm, the movable arms are symmetrically distributed on both sides of the central brush arm, and the central brush arm is connected to the mounting plate.

[0016] Preferably, the articulated brush arm comprises a first articulated brush arm and a second articulated brush arm which are arranged side by side up and down.

[0017] Preferably, the articulated brush arm is connected to a reciprocating screw so that the cleaning brush can reciprocate up and down.

[0018] Preferably, two optical axes are symmetrically arranged on both sides of the reciprocating screw, and both of the optical axes are slidably connected to the articulated brush arms.

[0019] Preferably, the water jet system comprises a nozzle, a nozzle arrangement frame and a horizontal shaking mechanism for causing the nozzle arrangement frame to perform horizontal reciprocating motion, and the nozzle is mounted on the nozzle arrangement frame.

[0020] Preferably, the horizontal shaking mechanism includes a cam structure, the nozzle arrangement frame is arranged on a sliding block that can move horizontally along a guide rail, and one end of the nozzle arrangement frame is arranged to fit the edge of the cam structure.

[0021] Preferably, the nozzle arrangement frame includes a first nozzle arrangement frame and a second nozzle arrangement frame that are symmetrically arranged, and the cam structure is located between the first nozzle arrangement frame and the second nozzle arrangement frame, and one end of the first nozzle arrangement frame and one end of the second nozzle arrangement frame are both arranged to fit the edge of the cam structure.

[0022] The present invention provides a device for automatically cleaning a wind turbine tower, comprising a lifting system, a cleaning system, a water jet system and a control system, wherein the cleaning system, the water jet system and the control system are all installed on the lifting system.

[0023] The lifting system includes a main frame, a hoist for lifting the equipment, and a magnetic component for providing adsorption force to make the cleaning system fit the surface of the wind turbine tower, and the hoist and the magnetic component are both installed on the main frame; the cleaning system is used to brush the surface of the wind turbine tower; the water jet system is used to soften or rinse the dirt on the surface of the wind turbine tower; the control system is used to control the lifting and rotation of the equipment, the cleaning action of the cleaning system and the spraying of the water jet system.

[0024] In addition, the hoist is connected to one end of the wire rope, and the other end of the wire rope is fixed in the rotatable wind turbine cabin. The hoist moves up and down along the wire rope, thereby driving the entire equipment to move up and down.

[0025] When cleaning the wind turbine tower, first assemble the equipment and place it at the bottom of the wind turbine tower, and place the magnetic component close to or in contact with the surface of the wind turbine tower; then start the hoist to drive the equipment upward, and at the same time, the control system controls the water jet system to spray water to soften the stains to be cleaned, and spray water on the surface of the wind turbine tower to destroy the physical attachment of the stains on the surface of the wind turbine tower, and use the cleaning system to clean the surface of the wind turbine tower; after reaching the top of the wind turbine tower, the hoist moves downward, and at the same time, the cleaning system cleans the surface of the wind turbine tower, and the water jet system flushes the surface of the wind turbine tower until the equipment descends to the bottom of the wind turbine tower, completing an up-and-down cleaning action; then the wind turbine cabin drives the equipment to rotate a certain angle to another cleaning position, and continues to complete an up-and-down cleaning action; after repeating many times, the surface cleaning of the wind turbine tower is completed.

[0026] Generally, the rotation angle of the wind turbine nacelle is 60° each time. After repeating this process 6 or 7 times, the wind turbine tower can be cleaned. Of course, other rotation angles are also possible.

[0027] Therefore, the automatic wind turbine tower cleaning device provided by the present invention can realize the automation of the wind turbine tower cleaning process, replace manual high-altitude operations, and avoid the occurrence of dangerous situations; at the same time, it can also improve work efficiency and reduce the cost of wind turbine tower cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the structure of the equipment for automatically cleaning the tower of a wind turbine generator set provided by the present invention;

[0030] Figure 2 A top view of a device for automatically cleaning a wind turbine tower;

[0031] Figure 3 A side view of a device for automatically cleaning a wind turbine tower;

[0032] Figure 4 It is a structural diagram of the lifting system;

[0033] Figure 5 It is a schematic diagram of the structure of the cleaning system;

[0034] Figure 6 It is a structural schematic diagram of the reciprocating screw and the optical axis;

[0035] Figure 7 Schematic diagram of the structure of the sprinkler arrangement frame.

[0036] Figure 1-7 middle:

[0037] 11 is the main frame, 12 is the hoist, 13 is the magnetic component installation position, 21 is the cleaning brush, 221 is the movable arm, 222 is the center brush arm, 223 is the through hole, 224 is the connecting pillar, 23 is the reciprocating screw, 231 is the coupling, 232 is the optical axis, 24 is the driving reducer installation position, 31 is the nozzle arrangement frame, and 32 is the cam structure. DETAILED DESCRIPTION

[0038] 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.

[0039] The core of the present invention is to provide a device for automatically cleaning the tower of a wind turbine generator set, which can replace the process of cleaning the tower of a wind turbine generator set by manual high-altitude operations.

[0040] Please refer to Figure 1-7 , Figure 1 This is a schematic diagram of the structure of the equipment for automatically cleaning the tower of a wind turbine generator set provided by the present invention; Figure 2 A top view of a device for automatically cleaning a wind turbine tower; Figure 3 A side view of a device for automatically cleaning a wind turbine tower; Figure 4 It is a structural diagram of the lifting system; Figure 5 It is a schematic diagram of the structure of the cleaning system; Figure 6 It is a structural schematic diagram of the reciprocating screw and the optical axis; Figure 7 Schematic diagram of the structure of the sprinkler arrangement frame.

[0041] The present invention discloses a device for automatically cleaning a wind turbine tower, comprising a lifting system, a cleaning system, a water jet system and a control system, wherein the cleaning system, the water jet system and the control system are all connected to the lifting system; the lifting system comprises a main frame 11, a hoist 12 for lifting the device as a whole and a magnetic component for providing an adsorption force so that the cleaning system fits the surface of the wind turbine tower, and the hoist 12 and the magnetic component are both installed on the main frame 11; the cleaning system is used to scrub the surface of the wind turbine tower; the water jet system is used to soften or flush dirt on the surface of the wind turbine tower; the control system is used to control the lifting and rotation of the device, the cleaning action of the cleaning system and the spraying of the water jet system.

[0042] A magnetic component installation location 13 is provided on the main frame 11 , and the magnetic component can be detachably installed on the magnetic component installation location 13 .

[0043] It should be noted that the magnetic component can be a permanent magnet or an electromagnet, which is determined according to actual conditions; during use, the magnetic component clings to the surface of the wind turbine tower to provide the equipment with the adsorption force required during the cleaning process.

[0044] The hoist 12 is fixed on the main frame 11 and connected to a steel wire rope, one end of which is fixed in a rotatable wind turbine cabin. The hoist 12 moves up and down along the steel wire rope, thereby driving the entire device to move up and down.

[0045] Preferably, the hoist 12 can select a hanging basket lifting structure, which has high reliability and large load, and can better meet the needs of the working process.

[0046] The main frame 11 can be a combination of aluminum alloy frames. Under the condition that the rigidity and load weight of the main frame 11 are met, structures of other materials can certainly be selected. The specific details are determined according to actual conditions and will not be elaborated here.

[0047] During use, the equipment is first assembled. After the assembly is completed, the equipment for automatically cleaning the wind turbine tower is placed at the lower part of the wind turbine tower, so that the magnetic component is in close contact with the surface of the wind turbine tower; then the hoist 12 is started to move the hoist 12 upward along the wire rope, thereby driving the equipment to move upward, and at the same time, the control system controls the water jet system to spray water to soften the stains to be cleaned, and sprays water on the surface of the wind turbine tower to destroy the physical attachment of the stains on the surface of the wind turbine tower. At the same time, the water jet system can also clean the cleaning brush 21 in the cleaning system. The surface of the wind turbine tower is softened by flushing, and then the cleaning system is used to clean the surface of the wind turbine tower; after reaching the top of the wind turbine tower, the hoist 12 moves downward along the wire rope, and at the same time, the cleaning brush 21 cleans the surface of the wind turbine tower, and the water jet system flushes the surface of the wind turbine tower until the equipment descends to the bottom of the wind turbine tower, completing an up-and-down cleaning action; then the wind turbine cabin drives the equipment to rotate a certain angle to another cleaning position, and continues to complete an up-and-down cleaning action; after repeating several times, the surface cleaning of the wind turbine tower is completed.

[0048] Preferably, during the ascending process of the hoist 12, the surface of the wind turbine tower is firstly sprayed with water using a water jet system, and then the surface of the wind turbine tower is scrubbed using a cleaning system. Because the water jet system is preferentially used for flushing before cleaning, the stains on the surface of the wind turbine tower can be softened, creating conditions for the subsequent scrubbing of the cleaning system. During the descending process of the hoist 12, the cleaning system is first used to scrub the surface of the wind turbine tower, and then the water jet system is used to spray water on the surface of the wind turbine tower. Because most of the stains have been scrubbed clean after the cleaning process is completed, the cleaning system is first used to remove the remaining stains during the descent process, and then the water jet system is used to further clean the surface of the wind turbine tower.

[0049] It should be noted that the hoist 12 may rise or fall at a constant speed during the process of rising or falling along the wire rope; or it may stop moving after rising or falling for a certain distance, and continue to rise or fall after the cleaning system completes the cleaning of the local area.

[0050] Preferably, in order to facilitate the control of the speed of the hoist 12 during the rising or falling process, a frequency conversion device for controlling the speed of the hoist 12 can be configured; during the cleaning of the wind turbine tower, the frequency conversion device can be adjusted as needed to make the hoist 12 rise or fall at the required speed.

[0051] Since the magnetic component is installed at the magnetic component installation position 13 of the main frame 11, and the magnetic component provides the equipment with the adsorption force required during the cleaning process, the adsorption force provided by the magnetic component will make the cleaning system contact with the surface of the wind turbine tower, and during the cleaning process, it is convenient for the cleaning system to brush the surface of the wind turbine tower.

[0052] In addition, the rotation angle of the wind turbine cabin can be 60° each time, or other angles; the number of rotations of the wind turbine cabin can be 6 times or 7 times, or other times, as long as the cleaning range completely covers the surface of the wind turbine tower, which is determined according to actual conditions.

[0053] In order to ensure that the entire surface of the wind turbine tower is cleaned, it is allowed that part of the surface of the wind turbine tower is cleaned repeatedly during the cleaning process. For example, the cleaning system can complete an up and down movement during the cleaning process to clean the arc surface corresponding to the 70° angle of the wind turbine tower. However, in order to ensure the cleaning quality, the wind turbine cabin can be rotated 60° each time, and part of the surface is allowed to be cleaned repeatedly. The specific amount will be determined based on actual conditions.

[0054] Preferably, the water flow pressure when the water jet system softens the cleaning brush 21 in the cleaning system can be different from the pressure when the water jet system softens the dirt on the surface of the wind turbine tower; further, the pressure when the water jet system softens and flushes the dirt on the surface of the wind turbine tower can also be different. The specific pressure value needs to be determined according to the actual situation and will not be elaborated here.

[0055] The control system can be arranged in the cabin of the wind turbine to facilitate the operation of the operator, or it can be directly arranged on the main frame 11 to control the movement of the equipment through an external remote control device.

[0056] On the basis of the above embodiment, in order to enable the cleaning system to contact the surface of the wind turbine tower during the cleaning process, the cleaning system may include a cleaning brush 21 and an articulated brush arm for installing the cleaning brush 21, the articulated brush arm including at least two hinged movable arms 221, and the movable arm 221 is provided with an elastic component for retracting the movable arm 221 toward one side of the cleaning brush 21.

[0057] During use, since the surface of the wind turbine tower is an arc surface, the hinged movable arm 221 can change the angle between two adjacent movable arms 221 according to the change of the arc surface, so that the cleaning brush 21 fits the surface of the wind turbine tower; and the movable arm 221 is provided with an elastic component that bends and retracts toward the side where the cleaning brush 21 is provided, so that the hinged movable arm 221 has a tendency to retract toward the middle, so that the cleaning brush 21 is closely attached to the surface of the wind turbine tower.

[0058] It should be noted that when the magnetic component is not in contact with the surface of the wind turbine tower, the curvature of the cleaning brush 21 is greater than the curvature of the surface of the wind turbine tower; after the magnetic component is adsorbed on the surface of the wind turbine tower, the distance between the cleaning brush 21 and the wind turbine tower becomes closer until the cleaning brush 21 fits the surface of the wind turbine tower. During this process, the curvature of the cleaning brush 21 continues to decrease until it is the same as the curvature of the surface of the wind turbine tower.

[0059] The elastic component can be a spring or other elastic components such as an elastic rope; when it is a spring, when the cleaning brush 21 is in contact with the surface of the wind turbine tower, the spring can be located on the side of the articulated brush arm where the cleaning brush 21 is installed and is in a stretched state, so that the movable arm 221 has a tendency to retract toward the side where the cleaning brush 21 is installed; in other cases, it can be determined according to actual conditions and will not be described in detail here. The number of movable arms 221 can be 2, 3, 4, etc., which can be determined according to actual conditions.

[0060] Preferably, two or more groups of articulated brush arms may be provided on the main frame 11 along the direction of the up and down movement of the hoist 12, so that the surface of the wind turbine tower can be cleaned more thoroughly.

[0061] On the basis of the above embodiment, since the surface of the wind turbine tower is arc-shaped, in order to improve the fitting effect between the cleaning system and the surface of the wind turbine tower, and at the same time, to enable the cleaning system to adapt to the cleaning of wind turbine towers of different sizes, the cleaning system can include a cleaning brush 21 and an articulated brush arm for installing the cleaning brush 21, and the cleaning brush 21 includes a brush head and a mounting plate for installing the brush head, the mounting plate is connected to the articulated brush arm, and the mounting plate is a mounting plate made of soft iron material.

[0062] Since soft iron has good toughness in the length direction, it can fit with the curved surface under the action of small external force, and has good rigidity in the height direction, so it is not easy to deform when fitting with the surface of the wind turbine tower; preferably, the mounting plate can be set as a mounting plate of soft iron sheet material.

[0063] Preferably, in order to make the mounting plate fit better with the wind turbine tower, a magnetic structure, such as a magnet, can be installed on the side of the mounting plate facing the surface of the wind turbine tower, so that the mounting plate and the surface of the wind turbine tower can fit more closely.

[0064] In addition, in order to make the bending process of the mounting plate more convenient and quick, two mounting plates can be symmetrically installed in the length direction of an articulated brush arm to make the bending process of the mounting plate more convenient. Of course, if the bending curvature is too large, it can also be set to 3 or 4 mounting plates, depending on the actual situation.

[0065] In order to further improve the fitting effect between the mounting plate and the wind turbine tower, a central brush arm 222 may be provided on the articulated brush arm, and the movable arms 221 are symmetrically provided on both sides of the central brush arm 222, and the central brush arm 222 is connected to the mounting plate.

[0066] Since the central brush arm 222 is connected to the mounting plate, and the movable arms 221 are symmetrically arranged on both sides of the central brush arm 222, when the mounting plate is deformed, the two ends of the mounting plate will bend symmetrically along the central cross-section of the length square of the central brush arm 222; and under the magnetic force of the magnetic component, the central brush arm 222 will press down the mounting plate, so that the mounting plate is more stable during the process of fitting with the wind turbine tower, and the fitting effect between the mounting plate and the surface of the wind turbine tower is better.

[0067] It should be noted that when there are two mounting plates, the center brush arm 222 is connected to both mounting plates. When there are multiple mounting plates, the center brush arm 222 can be connected to the mounting plate located in the middle, or other connection methods can be selected, depending on the actual situation.

[0068] Preferably, in order to better adapt the deformation of the articulated brush arm to the deformation of the mounting plate, the movable arms 221 arranged at both ends may be hingedly connected to the mounting plate.

[0069] Preferably, the central brush arm 222 and the movable arm 221 are hingedly connected.

[0070] Preferably, a through hole 223 may be provided on the movable arm 221 so that the central brush arm 222 is connected to the mounting plate through the connecting support 224. Figure 5 As shown, one end of the elastic component is connected to the through hole 223, and the other end is fixed to the connecting support 224; preferably, the elastic component is a spring.

[0071] On the basis of the above embodiment, in order to enhance the cleaning effect of the cleaning brush 21 on the surface of the wind turbine tower, the articulated brush arm can include a first articulated brush arm and a second articulated brush arm arranged side by side, and the first articulated brush arm and the second articulated brush arm are both provided with a cleaning brush 21.

[0072] During use, the contact area between the cleaning brush 21 and the surface of the wind turbine tower can be increased, thereby improving the cleaning effect on the surface of the wind turbine tower.

[0073] The brush head can be a scouring pad with a tiny fine mesh, or a brush or flannel. Preferably, the brush head can be detachably mounted on the mounting plate, and any type of brush head can be replaced and installed. In specific use, when the surface dirt is stubborn, you can choose a brush head; when the surface dirt is more, you can choose a scouring pad brush head; when the surface dirt is almost cleaned, you can choose a flannel brush head. The specific choice of brush head or how to use various brush heads together needs to be determined according to the specific situation.

[0074] When the articulated brush arm includes a first articulated brush arm and a second articulated brush arm which are arranged side by side in the vertical direction of cleaning, preferably, a bristle brush head can be installed on the first articulated brush arm located at the upper part, and a flannel brush head can be installed on the second articulated brush arm located at the lower part.

[0075] On the basis of the above embodiment, in order to improve the cleaning effect of the cleaning brush 21, the articulated brush arm may be connected to the reciprocating screw 23 so that the cleaning brush 21 can reciprocate up and down in a small range.

[0076] The reciprocating screw 23 can be driven by a driving reducer; a driving reducer installation location 24 can be provided on the main frame 11 for fixing and installing the driving reducer, and the driving reducer is connected to the reciprocating screw 23 via a coupling 231 .

[0077] During use, the reciprocating screw 23 can drive the articulated brush arm to reciprocate up and down. Since the cleaning brush 21 is installed on the articulated brush arm, the cleaning brush 21 will also reciprocate up and down, so that the brush head of the cleaning brush 21 reciprocates up and down at the contact position with the surface of the wind turbine tower, so that the stains on the surface of the wind turbine tower can be repeatedly brushed to improve the cleaning effect.

[0078] In order to prevent the articulated brush arm from shaking during the up and down movement, two optical axes 232 may be symmetrically arranged on both sides of the reciprocating screw 23, and both optical axes 232 are slidably connected to the articulated brush arm.

[0079] On the basis of the above embodiment, in order to increase the water spray coverage of the water jet system, the water jet system can include a nozzle, a nozzle arrangement frame 31 and a horizontal shaking mechanism for making the nozzle arrangement frame 31 perform horizontal reciprocating motion, and the nozzle is installed on the nozzle arrangement frame 31.

[0080] During use, since the horizontal shaking mechanism can make the nozzle arrangement frame 31 reciprocate horizontally, the nozzles arranged on the nozzle arrangement frame 31 can also reciprocate horizontally together, thereby widening the spraying range without increasing the number of nozzles.

[0081] In order to further limit the structure of the horizontal shaking mechanism, the horizontal shaking mechanism can include a cam structure 32, a nozzle arrangement frame 31 is arranged on a slider that can move horizontally along the guide rail, and one end of the nozzle arrangement frame 31 is arranged to fit the edge of the cam structure 32.

[0082] Since each point on the outer edge of the cam structure 32 is at a different distance from the central axis, and the outer edge of the cam structure 32 moves in close contact with the nozzle arrangement frame 31, the nozzle arrangement frame 31 will reciprocate horizontally during the rotation of the cam, thereby expanding the spray range of the nozzle.

[0083] On the basis of the above embodiment, in order to further expand the spray range of the nozzle, the nozzle arrangement frame 31 can include a first nozzle arrangement frame and a second nozzle arrangement frame, and the cam structure 32 is located between the first nozzle arrangement frame and the second nozzle arrangement frame, and one end of the first nozzle arrangement frame and one end of the second nozzle arrangement frame are both arranged to fit the edge of the cam structure 32.

[0084] Since each point on the outer edge of the cam structure 32 is at a different distance from the central axis, and the outer edge of the cam structure 32 is fitted with the first nozzle arrangement frame and the second nozzle arrangement frame, during the rotation of the cam, the first nozzle arrangement frame and the second nozzle arrangement frame will be driven to reciprocate horizontally, thereby further expanding the spray range of the nozzle.

[0085] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0086] The above is a detailed introduction to the automatic wind turbine tower cleaning device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A device for automatically cleaning a wind turbine tower, characterized in that: include: A lifting system, a cleaning system, a water jet system and a control system, wherein the cleaning system, the water jet system and the control system are all connected to the lifting system; The lifting system comprises a main frame (11), a lifting machine (12) for lifting and lowering equipment for automatically cleaning a wind turbine tower, and a magnetic component for providing an adsorption force to make the cleaning system adhere to the surface of the wind turbine tower, and the lifting machine (12) and the magnetic component are both mounted on the main frame (11); The cleaning system is used to scrub the surface of the wind turbine tower; The water jet system is used to soften or wash away dirt on the surface of the wind turbine tower; The control system is used to control the lifting and rotation of the equipment, the cleaning action of the cleaning system and the spraying of the water jet system; The lifting system also includes a frequency conversion device for controlling the speed of the hoist (12).

2. The automatic wind turbine tower cleaning device according to claim 1 is characterized in that: The cleaning system comprises a cleaning brush (21) and an articulated brush arm for mounting the cleaning brush (21); the articulated brush arm comprises at least two hinged movable arms (221); and the movable arm (221) is provided with an elastic component for causing the movable arm (221) to be retracted toward a side on which the cleaning brush (21) is mounted.

3. The automatic wind turbine tower cleaning device according to claim 2 is characterized in that: The cleaning brush (21) comprises a brush head and a mounting plate for mounting the brush head, wherein the mounting plate is connected to the articulated brush arm and the mounting plate is a mounting plate made of soft iron material.

4. The automatic wind turbine tower cleaning device according to claim 3 is characterized in that: The articulated brush arm is provided with a central brush arm (222), the movable arms (221) are symmetrically distributed on both sides of the central brush arm (222), and the central brush arm (222) is connected to the mounting plate.

5. The automatic wind turbine tower cleaning device according to claim 4 is characterized in that: The articulated brush arm comprises a first articulated brush arm and a second articulated brush arm which are arranged side by side up and down.

6. The automatic wind turbine tower cleaning device according to claim 5 is characterized in that: The articulated brush arm is connected to a reciprocating screw (23) so that the cleaning brush (21) can reciprocate up and down.

7. The automatic wind turbine tower cleaning device according to claim 6 is characterized in that: Two optical axes (232) are symmetrically arranged on both sides of the reciprocating screw (23), and the optical axes (232) are both slidably connected to the articulated brush arms.

8. The automatic wind turbine tower cleaning device according to any one of claims 1 to 7, characterized in that: The water jet system comprises a nozzle, a nozzle arrangement frame (31) and a horizontal shaking mechanism for causing the nozzle arrangement frame (31) to perform horizontal reciprocating motion, and the nozzle is mounted on the nozzle arrangement frame (31).

9. The automatic wind turbine tower cleaning device according to claim 8 is characterized in that: The horizontal shaking mechanism comprises a cam structure (32); the nozzle arrangement frame (31) is arranged on a sliding block that can move horizontally along a guide rail; and one end of the nozzle arrangement frame (31) is arranged to fit the edge of the cam structure (32).

10. The automatic wind turbine tower cleaning device according to claim 9 is characterized in that: The nozzle arrangement frame (31) comprises a first nozzle arrangement frame and a second nozzle arrangement frame which are symmetrically arranged, and the cam structure (32) is located between the first nozzle arrangement frame and the second nozzle arrangement frame, and one end of the first nozzle arrangement frame and one end of the second nozzle arrangement frame are both arranged to fit the edge of the cam structure (32).

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