Blade cleaning device

Abstract

The invention discloses a blade cleaning device, and belongs to the technical field of cleaning devices. The blade cleaning device comprises a U-shaped brush pipe, a lifting mechanism and a PLC, bristles are fixedly arranged on the inner wall of the U-shaped brush pipe, and the bristles are used for cleaning blades; the lifting mechanism comprises a concentric-square-shaped rod and a lifting seat, a screw rod is rotationally arranged in an opening of the concentric-square-shaped rod in the longitudinal direction, a threaded hole matched with the screw rod is formed in the lifting seat, and the screw rod is sleeved with the lifting seat through the threaded hole; a driving motor is arranged on the concentric-square-shaped rod, and the driving motor is connected with the screw rod and drives the screw rod to rotate; two light touch switches are arranged on the concentric-square-shaped rod in the longitudinal direction at intervals, the lifting base is arranged between the two light touch switches, and the lifting base is connected with the U-shaped brush pipe through a sliding sleeve; the PLC controls the U-shaped brush pipe to move up and down regularly to clean the blades, and abrasion caused by friction between the blades and the bristles when the blades are not used is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning devices, and in particular to a blade cleaning device. Background Art

[0002] Wind power generation refers to the process of converting wind energy into electrical energy. A wind turbine consists of a tower, blades, and a generator. When the wind blows, the blades rotate, converting the wind energy into mechanical energy. The generator then converts the mechanical energy into electrical energy, which is then transmitted to the user through power transmission and transformation equipment. However, wind turbines are typically installed outdoors and exposed to the open air for extended periods of time. Dust, bird droppings, and dead insects accumulate on the blades. Blade materials must be strong and lightweight, and are often made of fiberglass or other composite materials. The blades must also be smooth to minimize wind resistance, as rough surfaces can be "torn" by the wind. Therefore, the blades need to be cleaned to ensure a smooth surface.

[0003] Current blade cleaning devices utilize a cleaning brush fixed to a mast. As the blades rotate, they rub against the bristles on the inside of the brush, achieving cleaning. However, this still presents several drawbacks: the fixed brush causes the blades and bristles to rub against each other for extended periods. Even when the blades do not need cleaning, they still rub against the bristles, causing significant wear on the blade surface and bristles, shortening their service life. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a blade cleaning device, which can automatically perform unmanned regular brushing and cleaning on demand and automatically separate after cleaning, thereby preventing the blades and bristles from being in a state of friction for a long time, reducing the severe wear of the blade surface and bristles, and increasing their service life.

[0005] According to an embodiment of the present invention, the blade cleaning device includes a U-shaped brush tube, a lifting mechanism and a PLC controller, wherein bristles are fixedly provided on the inner wall of the U-shaped brush tube, and the bristles are used to clean the blades; the lifting mechanism includes a circular rod and a lifting seat, a screw is provided in the opening of the circular rod and rotates in the longitudinal direction, a threaded hole adapted to the screw is provided on the lifting seat, and the lifting seat is sleeved on the screw through the threaded hole; a driving motor is provided on the circular rod, and the driving motor is connected to the screw to drive the screw to rotate; two touch switches are provided at intervals on the circular rod along the longitudinal direction, and the lifting seat is provided between the two touch switches, and the lifting seat is connected to the U-shaped brush tube through a sliding sleeve. shaped brush tube; the PLC controller is electrically connected to the drive motor and the touch switch, the PLC controller controls the drive motor to start at a fixed time, the drive motor drives the screw to rotate and drives the lifting seat, the sliding sleeve and the U-shaped brush tube to move upward, so that the U-shaped brush tube contacts the blade to clean the blade, after the sliding sleeve moves upward and contacts the touch switch, the PLC controller controls the drive motor to stop, after a set time, the PLC controller controls the drive motor to reverse, so that the lifting seat drives the sliding sleeve and the U-shaped brush tube to move downward, when the sliding sleeve contacts the touch switch located below, the PLC controller controls the drive motor to stop.

[0006] According to an embodiment of the present invention, the blade cleaning device can achieve at least the following beneficial effects through such a configuration: the U-shaped brush tube is shaped to match the blade shape and is positioned below the blade. The U-shaped brush tube is periodically moved upward by a lifting mechanism so that the U-shaped brush tube can contact the blade surface to clean the blade surface. When the lifting mechanism moves the U-shaped brush tube to a specific position, i.e., after the sliding sleeve contacts the touch switch, the contact switch sends a signal to the PLC controller, causing the PLC controller to control the drive motor to stop, thereby temporarily fixing the position of the U-shaped brush tube and enabling the blade to be cleaned. After a set time has elapsed, i.e., when the blade is deemed to have been cleaned, the PLC controller controls the drive motor to reverse, thereby allowing the U-shaped brush tube to move downward. When the sliding sleeve contacts the touch switch located below, the PLC controller controls the drive motor to stop, causing the U-shaped brush tube to stop at a position away from the blade, thereby separating the U-shaped brush tube from the blade, preventing the bristles of the U-shaped brush tube from contacting the blade for a long time, reducing severe wear on the blade surface and the bristles, and increasing the service life of the brush tube.

[0007] According to some embodiments of the present invention, a fixing device is further included, wherein the fixing device is connected to the spring rod and fixedly connected to the tower rod.

[0008] According to some embodiments of the present invention, the fixing device is a clamp, and at least two of the clamps are provided and arranged on the tower pole along the longitudinal direction.

[0009] According to some embodiments of the present invention, a cleaning component is further included, which includes a water spray hole, a water tank and a water pump. The water spray hole is arranged on the inner wall of the U-shaped brush tube, and the water pump is connected to the water spray hole and the water tank. The water inlet of the water pump extends into the water tank and is connected to a water suction pipe. The water outlet of the water pump is connected to the water spray hole, and the water pump is electrically connected to the PLC controller.

[0010] According to some embodiments of the present invention, a U-shaped accommodating cavity is hollowly provided inside the U-shaped brush tube, the water spray hole is connected to the accommodating cavity, and the water pump is connected to the bottom of the accommodating cavity.

[0011] According to some embodiments of the present invention, a telescopic hose is further included, one end of which is connected to the water outlet of the water pump, and the other end is connected to the bottom of the accommodating cavity. The water pump is connected to the water spray hole through the telescopic hose and the accommodating cavity.

[0012] According to some embodiments of the present invention, an L-shaped tube and a nozzle are further included, wherein one end of the L-shaped tube is inserted into the accommodating cavity from the top of the U-shaped brush tube, and the other end opens toward the inside of the U-shaped brush tube and is connected to the nozzle.

[0013] According to some embodiments of the present invention, a rain collecting component is further included, and the rain collecting component includes a rain collecting hopper, which is connected to the water tank. The top of the rain collecting hopper is open and is used to collect rainwater into the water tank.

[0014] According to some embodiments of the present invention, the rain collecting assembly further includes an inclined conduit, which is disposed on the top of the water tank and communicates with the water tank and the rain collecting hopper.

[0015] According to some embodiments of the present invention, the rain collecting assembly further includes a filter screen, and the filter screen is arranged at the top opening of the rain collecting hopper.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of a blade cleaning device and a wind turbine according to an embodiment of the present invention;

[0019] Figure 2 2. It is a schematic diagram of the overall structure of a blade cleaning device according to an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure viewed from above;

[0021] Figure 4 for Figure 1 A schematic diagram of the enlarged structure of part A in FIG.

[0022] Reference numerals:

[0023] 100. Tower; 101. Wind turbine; 102. Blades; 1. Clamp; 2. Support plate; 3. PLC controller; 4. Water tank; 5. Reciprocating rod; 6. Drive motor; 7. Screw; 8. Lifting seat; 9. Sleeve; 10. U-shaped brush tube; 11. Bristles; 12. Water spray hole; 13. L-shaped tube; 14. Nozzle; 15. Telescopic hose; 16. Water pump; 17. Touch switch; 18. Rainwater collecting hopper; 19. Inclined duct; 20. Filter; 21. Receiving chamber. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference below Figures 1 to 4 A blade cleaning device according to an embodiment of the present invention will be described.

[0029] According to an embodiment of the present invention, the blade cleaning device includes a U-shaped brush tube 10, a lifting mechanism and a PLC controller 3. The inner wall of the U-shaped brush tube 10 is fixedly provided with bristles 11, and the bristles 11 are used to clean the blades 102; the lifting mechanism includes a circular rod 5 and a lifting seat 8. A screw 7 is provided in the opening of the circular rod 5 and rotates in the longitudinal direction. A threaded hole is provided on the lifting seat 8 that is adapted to the screw 7. The lifting seat 8 is sleeved on the screw 7 through the threaded hole; a drive motor 6 is provided on the circular rod 5, and the drive motor 6 is connected to the screw 7 to drive the screw 7 to rotate; two touch switches 17 are provided at intervals along the longitudinal direction of the circular rod 5, and the lifting seat 8 is provided between the two touch switches 17. The lifting seat 8 is connected to the U-shaped brush tube 10 by a sliding sleeve 9. shaped brush tube 10 is connected; the PLC controller 3 is electrically connected to the drive motor 6 and the touch switch 17. The PLC controller 3 controls the drive motor 6 to start at a fixed time. The drive motor 6 drives the screw 7 to rotate and drives the lifting seat 8, the sliding sleeve 9 and the U-shaped brush tube 10 to move upward, so that the U-shaped brush tube 10 contacts the blade 102 to clean the blade 102. After the sliding sleeve 9 moves upward and contacts the touch switch 17, the PLC controller 3 controls the drive motor 6 to stop. After the set time, the PLC controller 3 controls the drive motor 6 to reverse, so that the lifting seat 8 drives the sliding sleeve 9 and the U-shaped brush tube 10 to move downward. When the sliding sleeve 9 contacts the touch switch 17 located below, the PLC controller 3 controls the drive motor 6 to stop.

[0030] For example Figures 1 to 4 As shown, the wind power generation device includes a wind turbine 101, three blades 102 fixed in a ring shape to the outside of the output shaft of the wind turbine 101, and a tower 100 fixed to the bottom of the wind turbine 101. The tower 100 is equipped with a blade cleaning device according to an embodiment of the present invention that cooperates with the blades 102.

[0031] The U-shaped brush tube 10 of the blade cleaning device is located directly below the blades 102. Driven by the lifting mechanism, it can move upward so that the blades 102 can rotate through the gaps between the U-shaped brush tubes 10. When the blades 102 pass through the gaps between the U-shaped brush tubes 10, they will rub against the bristles 11 provided on the inner wall of the U-shaped brush tubes 10, thereby cleaning the dirt on the blades 102.

[0032] The lifting mechanism includes a revolving rod 5 and a lifting seat 8. A screw 7 is disposed within the opening of the revolving rod 5 and rotates longitudinally. The lifting seat 8 has a threaded hole that mates with the screw 7, and the lifting seat 8 is sleeved onto the screw 7 through the threaded hole. A drive motor 6 is provided on the revolving rod 5 and is connected to the screw 7 to drive the screw 7. The drive motor 6 drives the screw 7 to rotate, causing the lifting seat 8 to move up and down along the axial direction of the screw 7.

[0033] The lifting seat 8 is fixedly connected to the sliding sleeve 9 and the U-shaped brush tube 10, thereby being able to drive the U-shaped brush tube 10 to move up and down so that the blades 102 can be cleaned when needed, and moved downward when not needed to avoid wear caused by friction between the bristles 11 and the blades 102.

[0034] Two touch switches 17 are located inside the revolving rod 5, one above and one below, along the axial direction of the screw 7. Both touch switches 17 are electrically connected to the PLC controller 3. When the lifting mechanism moves the U-shaped brush tube 10 to a specific position, that is, after the sleeve 9 contacts the touch switches 17, the touch switches send a signal to the PLC controller 3, causing it to control the drive motor 6 to stop, thereby temporarily fixing the position of the U-shaped brush tube 10 and allowing the blades 102 to be cleaned. After a set time has passed, that is, when the blades 102 are deemed to have been cleaned, the PLC controller 3 controls the drive motor 6 to reverse, allowing the U-shaped brush tube 10 to move downward. When the sleeve 9 contacts the touch switches 17 located below, the PLC controller 3 controls the drive motor 6 to stop, causing the U-shaped brush tube 10 to stop at a position where it is separated from the blades 102. This prevents the bristles 11 of the U-shaped brush tube 10 from contacting the blades 102 for a long time, reduces severe wear on the surface of the blades 102 and the bristles 11, and increases its service life.

[0035] In some specific embodiments of the present invention, a fixing device is further included, which is connected to the spring rod 5 and fixedly connected to the tower rod 100 .

[0036] For example Figure 2 and Figure 3 As shown, the blade cleaning device further includes a fixing device, which is connected to the circular rod 5 and fixedly connected to the tower 100 , thereby fixing the entire blade cleaning device on the wind turbine 101 .

[0037] The fixing device can be fixed in various ways, including being adsorbed on the tower pole 100 by magnetic force, being glued on the tower pole 100, and the like.

[0038] In some specific embodiments of the present invention, the fixing device is a clamp 1 , and at least two clamps 1 are provided and arranged on the tower 100 along the longitudinal direction.

[0039] For example Figure 2 and Figure 3 As shown, the fixing device is a clamp 1, and two clamps 1 are provided, one above and one below, and are arranged on the tower 100 along the longitudinal direction, so that the entire blade cleaning device can be firmly fixed on the tower 100 and will not fall off.

[0040] Furthermore, a support plate 2 is fixedly installed on the right side of the lower clamp 1, and a PLC controller 3 is fixedly installed on the bottom of the support plate 2.

[0041] In some specific embodiments of the present invention, a cleaning component is also included, which includes a water spray hole 12, a water tank 4 and a water pump 16. The water spray hole 12 is arranged on the inner wall of the U-shaped brush tube 10, and the water pump 16 is connected to the water spray hole 12 and the water tank 4. The water inlet of the water pump 16 extends into the water tank 4 and is connected to a water suction pipe. The water outlet of the water pump 16 is connected to the water spray hole 12, and the water pump 16 is electrically connected to the PLC controller 3.

[0042] For example Figure 1 、 Figure 2 and Figure 4 As shown, the blade cleaning device also includes a cleaning component, wherein the cleaning component includes a water spray hole 12, a water tank 4 and a water pump 16. The water spray hole 12 is arranged on the inner wall of the U-shaped brush tube 10, and the top of the support plate 2 is fixedly connected to the water tank 4. The water pump 16 is connected to the water spray hole 12 and the water tank 4. The water inlet of the water pump 16 extends into the water tank 4 and is connected to a suction pipe. The water outlet of the water pump 16 is connected to the water spray hole 12. The water pump 16 is electrically connected to the PLC controller 3, so that the PLC controller 3 can control the water pump 16 to pump water from the water tank 4 to the water spray hole 12 when the U-shaped brush tube 10 moves upward so that the blade 102 contacts the bristles 11, thereby cleaning the blade 102 and making the surface of the blade 102 cleaner.

[0043] Furthermore, an infrared sensing device is provided on the inner wall of the U-shaped brush tube 10, and the infrared sensing device is electrically connected to the PLC controller 3. When the infrared sensing device senses that the blade 102 passes through the bristles 11 and the water spray hole 12, it transmits a signal to the PLC controller 3, and the PLC controller 3 controls the water pump 16 to work, thereby avoiding waste caused by the water pump 16 spraying water when the blade 102 does not pass by.

[0044] In some specific embodiments of the present invention, a U-shaped accommodating chamber 21 is hollowly provided inside the U-shaped brush tube 10 , the water spray hole 12 is connected to the accommodating chamber 21 , and the water pump 16 is connected to the bottom of the accommodating chamber 21 .

[0045] For example Figure 1 and Figure 4As shown, the U-shaped brush tube 10 is hollow inside and has a U-shaped receiving chamber 21. The water spray hole 12 is connected to the receiving chamber 21, and the water pump 16 is connected to the bottom of the receiving chamber 21, so that the water pump 16 can pump water from the water tank 4 into the receiving chamber 21, and then spray it from the water spray hole 12 to clean the blades 102, thereby eliminating the need for external pipes and saving space. Water is sprayed through multiple water spray holes 12 to clean the bristles 11 and blades 102, ensuring its clean effect during use.

[0046] In some specific embodiments of the present invention, a telescopic hose 15 is further included, one end of which is connected to the water outlet of the water pump 16, and the other end is connected to the bottom of the accommodating chamber 21. The water pump 16 is connected to the water spray hole 12 through the telescopic hose 15 and the accommodating chamber 21.

[0047] For example Figure 2 、 Figure 3 and Figure 4 As shown, the blade cleaning device also includes a telescopic hose 15, one end of which is connected to the water outlet of the water pump 16, and the other end is connected to the bottom of the accommodating chamber 21. The water pump 16 is connected to the water spray hole 12 through the telescopic hose 15 and the accommodating chamber 21. The provision of the telescopic hose 15 enables the lifting mechanism to smoothly drive the water tank 4 upward, and can ensure the stability of the connection between the water pump 16 and the water spray hole 12.

[0048] In some specific embodiments of the present invention, an L-shaped tube 13 and a nozzle 14 are also included. One end of the L-shaped tube 13 is inserted into the accommodating cavity 21 from the top of the U-shaped brush tube 10, and the other end is opened toward the inside of the U-shaped brush tube 10 and connected to the nozzle 14.

[0049] For example Figure 2 and Figure 4 As shown, it also includes an L-shaped tube 13 and a nozzle 14. One end of the L-shaped tube 13 is inserted into the accommodating cavity 21 from the top of the U-shaped brush tube 10, and the other end is opened toward the inside of the U-shaped brush tube 10 and connected to the nozzle 14. Through this arrangement, the water pump 16 can pump water through the two L-shaped tubes 13 and the two nozzles 14 in sequence to rinse both sides of the blades 102, achieving a better cleaning effect.

[0050] In some specific embodiments of the present invention, a rain collecting component is further included. The rain collecting component includes a rain collecting hopper 18 . The rain collecting hopper 18 is connected to the water tank 4 . The top of the rain collecting hopper 18 is open and is used to collect rainwater into the water tank 4 .

[0051] For example Figure 1 and Figure 2 As shown, the rain collecting assembly includes a rain collecting hopper 18, which is connected to the water tank 4 and can collect rainwater into the water tank 4 when it rains, so that the water cleaning system of the blade cleaning device can be self-sufficient and does not require additional water added manually.

[0052] Furthermore, a water level monitoring device is provided in the water tank 4 , and the water level monitoring device is electrically connected to the PLC controller 3 , so that when there is no water in the water tank 4 , the PLC controller 3 does not control the water pump 16 to pump water, thereby preventing the water pump 16 from idling.

[0053] A water level alarm device can also be provided. When the water level in the water tank 4 is too low, a signal can be sent to the workers, and water can be added manually when it is not raining and the water in the water tank 4 cannot be replenished.

[0054] In some specific embodiments of the present invention, the rain collecting assembly further includes an inclined conduit 19 , which is disposed on the top of the water tank 4 and communicates with the water tank 4 and the rain collecting hopper 18 .

[0055] For example Figure 1 and Figure 2 As shown, the rain collecting assembly also includes an inclined conduit 19, which is arranged on the top of the water tank 4 and connected to the water tank 4 and the rain collecting hopper 18, so that the rain collecting hopper 18 can extend outward to avoid obstruction above the rain collecting hopper 18 and obtain a better rain collecting effect.

[0056] In some specific embodiments of the present invention, the rain collecting assembly further includes a filter screen 20 , which is disposed at the top opening of the rain collecting hopper 18 .

[0057] For example Figure 2 As shown, the rain collecting hopper 18 is also provided with a filter screen 20, wherein the filter screen 20 is arranged at the top opening of the rain collecting hopper 18. On rainy days, the filter screen 20 is used to filter and intercept solid impurities in the rainwater, and the rain collecting hopper 18 is used to collect the filtered rainwater. The collected rainwater is discharged into the water tank 4 through the inclined conduit 19 for utilization, thereby achieving the effect of filtering, collecting and utilizing rainwater on rainy days, and saving water resources.

[0058] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A blade cleaning device, characterized in that: include: A U-shaped brush tube (10), wherein bristles (11) are fixedly provided on the inner wall of the U-shaped brush tube (10), and the bristles (11) are used for cleaning the blades (102); A lifting mechanism, the lifting mechanism comprises a reciprocating rod (5) and a lifting seat (8); a screw (7) is arranged in an opening of the reciprocating rod (5) for rotation in the longitudinal direction; a threaded hole adapted to the screw (7) is provided on the lifting seat (8); the lifting seat (8) is sleeved on the screw (7) through the threaded hole; a driving motor (6) is provided on the reciprocating rod (5); the driving motor (6) is connected to the screw (7) to drive the screw (7) to rotate; two touch switches (17) are arranged at intervals on the reciprocating rod (5) in the longitudinal direction; the lifting seat (8) is arranged between the two touch switches (17); the lifting seat (8) is connected to the U-shaped brush tube (10) through a sliding sleeve (9); A PLC controller (3) is provided. The PLC controller (3) is electrically connected to the drive motor (6) and the touch switch (17). The PLC controller (3) controls the drive motor (6) to start at a fixed time. The drive motor (6) drives the screw (7) to rotate and drives the lifting seat (8), the sliding sleeve (9) and the U-shaped brush tube (10) to move upward, so that the U-shaped brush tube (10) contacts the blade (102) to clean the blade (102). After the sliding sleeve (9) moves upward and contacts the touch switch (17), the PLC controller (3) controls the drive motor (6) to stop. After a set time, the PLC controller (3) controls the drive motor (6) to reverse, so that the lifting seat (8) drives the sliding sleeve (9) and the U-shaped brush tube (10) to move downward. When the sliding sleeve (9) contacts the touch switch (17) located below, the PLC controller (3) controls the drive motor (6) to stop.

2. The blade cleaning device according to claim 1, characterized in that It also includes a fixing device, which is connected to the circular rod (5) and fixedly connected to the tower rod (100).

3. The blade cleaning device according to claim 2, characterized in that: The fixing device is a clamp (1), and at least two clamps (1) are provided and arranged on the tower pole (100) in an array along the longitudinal direction.

4. The blade cleaning device according to claim 1, characterized in that The invention also includes a cleaning component, which includes a water spray hole (12), a water tank (4) and a water pump (16). The water spray hole (12) is arranged on the inner wall of the U-shaped brush tube (10). The water pump (16) is connected to the water spray hole (12) and the water tank (4). The water inlet of the water pump (16) extends into the water tank (4) and is connected to a water suction pipe. The water outlet of the water pump (16) is connected to the water spray hole (12). The water pump (16) is electrically connected to the PLC controller (3).

5. The blade cleaning device according to claim 4, characterized in that: A U-shaped accommodating chamber (21) is hollowly provided inside the U-shaped brush tube (10), the water spray hole (12) is connected to the accommodating chamber (21), and the water pump (16) is connected to the bottom of the accommodating chamber (21).

6. The blade cleaning device according to claim 5, characterized in that The invention also includes a telescopic hose (15), one end of which is connected to the water outlet of the water pump (16), and the other end of which is connected to the bottom of the accommodating chamber (21). The water pump (16) is connected to the water spray hole (12) through the telescopic hose (15) and the accommodating chamber (21).

7. The blade cleaning device according to claim 5, characterized in that It also includes an L-shaped tube (13) and a nozzle (14), one end of the L-shaped tube (13) is inserted into the accommodating cavity (21) from the top of the U-shaped brush tube (10), and the other end is opened toward the inside of the U-shaped brush tube (10) and is connected to the nozzle (14).

8. The blade cleaning device according to claim 4, characterized in that: It also includes a rain collecting component, which includes a rain collecting hopper (18). The rain collecting hopper (18) is connected to the water tank (4). The top of the rain collecting hopper (18) is open and is used to collect rainwater into the water tank (4).

9. The blade cleaning device according to claim 8, characterized in that The rain collecting assembly further comprises an inclined conduit (19), which is arranged on the top of the water tank (4) and is connected to the water tank (4) and the rain collecting hopper (18).

10. The blade cleaning device according to claim 8, characterized in that The rain collecting assembly further comprises a filter screen (20), and the filter screen (20) is arranged at the top opening of the rain collecting hopper (18).

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