Detection equipment for wind turbine blade lightning arrester based on unmanned aerial vehicle

Abstract

The embodiment of the invention provides unmanned aerial vehicle-based wind turbine blade lightning arrester detection equipment, which comprises an unmanned aerial vehicle, a supporting platform, a cleaning device and a detection device, the supporting platform is rotatably connected to the bottom of the unmanned aerial vehicle, the cleaning device is arranged on the supporting platform, the cleaning device is used for cleaning the surface of a lightning arrester, and the detection device is used for detecting the surface of the lightning arrester. The detection device is arranged on the supporting platform, the detection device and the cleaning device are arranged at the two ends of the supporting platform respectively, and the detection device is used for detecting pulse signals of the lightning arrester. According to the detection equipment provided by the embodiment of the invention, the lightning arrester is firstly cleaned by the cleaning device, and then the lightning arrester is detected by the detection device, so that a detection result is prevented from being influenced by dirt or rust on the surface of the lightning arrester, and the detection accuracy of the detection equipment is improved. The supporting platform is controlled to rotate to drive the cleaning device and the detection device to rotate, so that the detection device is quickly rotated to the position near the lightning arrester, the position change speed of the detection device and the cleaning device is increased, and the detection efficiency of the detection equipment is improved.

Description

Technical Field

[0001] The embodiments of the present invention belong to the technical field of wind turbine blade detection, and specifically relate to a wind turbine blade lightning arrester detection device based on an unmanned aerial vehicle. Background Art

[0002] At present, the lightning protection system of wind turbines is mainly composed of external lightning rods and internal wires. The principle is to safely divert lightning to the ground through lightning rods and lightning conductors. However, frequent lightning diversion and rain erosion cause the surface of the lightning rod to rust, and the internal wires to break or fail. If not discovered in time, the wind turbine is very likely to be destroyed by lightning in the next thunderstorm.

[0003] In the past, the inspection method for wind turbine lightning protection systems was manual inspection. This method required the use of a high-altitude hanging basket to send workers to the vicinity of the lightning rod, and the workers then used a file to grind it before conducting an Ohm method test. This manual method of high-altitude work was extremely dangerous, and the method of lifting the hanging basket was inefficient. Summary of the invention

[0004] The embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art and provide a wind turbine blade lightning arrester detection device based on a drone.

[0005] An embodiment of the present invention provides a wind turbine blade lightning arrester detection device based on a drone, the detection device comprising:

[0006] Drones;

[0007] A support platform, the support platform is rotatably connected to the bottom of the drone;

[0008] A cleaning device, the cleaning device is arranged on the supporting platform, and the cleaning device is used to clean the surface of the lightning receptor;

[0009] A detection device, wherein the detection device is arranged on the support platform, the detection device and the cleaning device are arranged at two ends of the support platform respectively, and the detection device is used to detect the pulse signal of the lightning receptor.

[0010] In some embodiments of the present invention, the center of gravity of the cleaning device and the center of gravity of the detection device are symmetrically arranged about the rotation axis of the supporting platform.

[0011] In some embodiments of the present invention, the cleaning device comprises:

[0012] A cleaning motor, the cleaning motor is connected to the supporting platform;

[0013] A telescopic assembly, the cleaning motor is drivingly connected to the telescopic assembly, and the cleaning motor is used to drive the telescopic assembly to rotate;

[0014] A cleaning piece, wherein the free end of the telescopic assembly is used for connecting the cleaning piece.

[0015] In some embodiments of the present invention, the cleaning device further comprises:

[0016] A buffer component is connected between the free end of the telescopic component and the cleaning component.

[0017] In some embodiments of the present invention, the telescopic assembly comprises:

[0018] An outer sleeve, the cleaning motor is connected to the outer sleeve, and the cleaning motor is used to drive the outer sleeve to rotate;

[0019] An inner sleeve, wherein the inner sleeve is slidably connected to the inner wall of the outer sleeve, and the free end of the inner sleeve is used to connect to the cleaning member;

[0020] A telescopic spring is located in the outer sleeve, and two ends of the telescopic spring are respectively connected to the outer sleeve and the inner sleeve.

[0021] In some embodiments of the present invention, the detection device comprises:

[0022] A detection motor, the detection motor is connected to the support platform;

[0023] The clamping jaw assembly is connected to the detection motor driving the clamping jaw assembly to drive the clamping jaw assembly to switch between an open state and a clamped state. The clamping jaw assembly is used to detect the pulse signal of the lightning receptor.

[0024] In some embodiments of the present invention, the clamping jaw assembly comprises:

[0025] A lead screw, the detection motor is drivingly connected to the lead screw;

[0026] A fixed platform, the fixed platform is connected to an end of the support platform away from the cleaning device, and the fixed platform is sleeved on the lead screw;

[0027] A fixing rod, the fixing rod being connected to a side of the fixing platform facing away from the supporting platform;

[0028] A nut, the nut being matched with the lead screw;

[0029] A connecting platform, the nut is rotatably connected to the connecting platform, the connecting platform is arranged on a side of the nut away from the fixing platform, and the connecting platform is sleeved on the fixing rod;

[0030] A connecting rod, a first end of which is hinged to the fixing rod;

[0031] A clamping jaw, wherein the second end of the connecting rod is hinged to the fixed end of the clamping jaw, the fixed end of the clamping jaw is hinged to the fixed rod, and a detection sheet is provided on the inner side of the clamping jaw;

[0032] The number of the clamping jaws is at least two, the number of the fixing rods, the connecting rods and the clamping jaws is the same, and the fixing rods, the connecting rods and the clamping jaws are arranged in a one-to-one correspondence.

[0033] In some embodiments of the present invention, a side of the clamping claw for clamping the lightning receptor is provided with a groove, and the detection sheet is arranged in the groove.

[0034] In some embodiments of the present invention, the support platform comprises:

[0035] The supporting frame has a receiving cavity with openings at both ends, the detecting device is arranged at one opening of the receiving cavity, and the cleaning device is arranged at the other opening of the receiving cavity.

[0036] In some embodiments of the present invention, the support platform further comprises:

[0037] The support frame is connected to a side of the support frame away from the UAV, and two ends of the support frame extend to the outside of the support frame respectively.

[0038] According to the drone-based wind turbine blade lightning arrester detection device of the embodiment of the present invention, it includes a drone, a support platform, a cleaning device and a detection device. The drone connects the cleaning device and the detection device through the support platform. The drone transports the cleaning device and the detection device to the vicinity of the lightning arrester of the wind turbine blade. Then, the cleaning device cleans the lightning arrester to prevent dirt or rust on the surface of the lightning arrester from affecting the detection result of the detection device. The lightning arrester is then detected by the detection device to obtain the status information of the lightning arrester. The cleaning device prepares for the detection of the detection device to improve the detection accuracy of the detection device and avoid the inaccurate detection result caused by rust or dirt on the surface of the lightning arrester. The danger of manual operation is reduced and the detection efficiency of wind turbine blades is improved. In addition, the supporting platform is connected to the bottom of the UAV in a rotatable manner relative to the UAV, and the cleaning device and the detecting device are respectively arranged at both ends of the supporting platform. By controlling the rotation of the supporting platform, the cleaning device and the detecting device rotate along with the supporting platform, thereby controlling the position change of the cleaning device and the detecting device. After the cleaning device cleans the lightning rod, the detecting device can be rotated to the vicinity of the lightning rod by controlling the rotation of the supporting platform, so as to flexibly control the position change of the detecting device and the cleaning device, thereby increasing the speed of the position change of the detecting device and the cleaning device, and further improving the detection efficiency of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1A schematic diagram of cleaning a lightning receptor of a wind turbine blade lightning receptor detection device based on a drone according to an embodiment of the present invention;

[0040] Figure 2 for Figure 1 A schematic diagram of a detection lightning receptor detected by the detection equipment shown;

[0041] Figure 3 for Figure 1 An axonometric view of a wind turbine blade lightning arrester detection device based on a drone is shown;

[0042] Figure 4 for Figure 3 A front view of a wind turbine blade lightning arrester detection device based on a drone is shown;

[0043] Figure 5 for Figure 3 A schematic structural diagram of the cleaning device shown;

[0044] Figure 6 for Figure 3 A front view of the structure of the detection device shown (clamped state);

[0045] Figure 7 for Figure 6 A top view of the structure of the detection device shown (clamped state);

[0046] Figure 8 for Figure 6 A side view of the structure of the detection device shown (clamped state).

[0047] The reference numerals in the accompanying drawings represent the following:

[0048] 100. Wind turbine blade lightning arrester detection equipment based on drones;

[0049] 10. UAV; 11. Driving motor; 12. Connecting frame; 13. Coupling;

[0050] 20. Support platform; 21. Support frame; 211. Accommodating cavity; 22. Support frame;

[0051] 30. Cleaning device; 31. Cleaning motor; 32. Telescopic assembly; 321. Outer sleeve; 322. Inner sleeve; 323. Telescopic spring; 33. Cleaning member; 34. Buffer member;

[0052] 40. Detection device; 41. Detection motor; 421. Lead screw; 422. Fixing platform; 423. Fixing rod; 424. Nut; 425. Connecting platform; 426. Connecting rod; 427. Clamping claw; 4271. Groove;

[0053] 200. Blade; 210. Lightning arrester. DETAILED DESCRIPTION

[0054] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0055] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0056] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0057] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0058] like Figures 1 to 8 As shown, an embodiment of the present invention provides a wind turbine blade lightning arrester detection device 100 based on a drone, the detection device comprising: a drone 10, a support platform 20, a cleaning device 30 and a detection device 40. Specifically, the support platform 20 is rotatably connected to the bottom of the drone 10, the cleaning device 30 is arranged on the support platform 20, the cleaning device 30 is used to clean the surface of the lightning arrester 210, the detection device 40 is arranged on the support platform 20, the detection device 40 and the cleaning device 30 are respectively arranged at two ends of the support platform 20, and the detection device 40 is used to detect the pulse signal of the lightning arrester 210.

[0059] According to an embodiment of the present invention, a wind turbine blade lightning arrester detection device 100 based on a drone comprises a drone 10, a support platform 20, a cleaning device 30 and a detection device 40. The drone 10 is connected to the cleaning device 30 and the detection device 40 through the support platform 20. The cleaning device 30 and the detection device 40 are transported to the vicinity of the lightning arrester 210 of the wind turbine blade 200 by the drone 10. Then, the lightning arrester 210 is cleaned by the cleaning device 30 (e.g., Figure 1 As shown), to prevent dirt or rust on the surface of the lightning receptor 210 from affecting the detection result of the detection device 40, the lightning receptor 210 is then detected by the detection device 40 (as shown in FIG. Figure 2As shown), to obtain the status information of the lightning receptor 210, the cleaning device 30 prepares for the detection of the detection device 40 to improve the accuracy of the detection of the detection device 40 and avoid the situation that the detection result is inaccurate due to rust or dirt on the surface of the lightning receptor 210. This manual method of high-altitude operation is extremely dangerous, and the method of lifting the hanging basket is inefficient. In addition, the support platform 20 is connected to the bottom of the drone 10 in a rotatable manner relative to the drone 10, and the cleaning device 30 and the detection device 40 are respectively arranged at both ends of the support platform 20. By controlling the rotation of the support platform 20, the cleaning device 30 and the detection device 40 rotate together with the support platform 20, thereby controlling the position change of the cleaning device 30 and the detection device 40. After the cleaning device 30 cleans the lightning receptor 210, by controlling the rotation of the support platform 20, the detection device 40 can be rotated to the vicinity of the lightning receptor 210, so as to flexibly control the position change of the detection device 40 and the cleaning device 30, thereby improving the speed of the position change of the detection device 40 and the cleaning device 30, and then improving the detection efficiency of the detection equipment.

[0060] In some embodiments of the present invention, the bottom of the drone 10 is connected to the connection frame 12, the connection frame 12 is formed with a storage space, the connection frame 12 is connected to the drive motor 11, part of the drive motor 11 is located in the storage space of the connection frame 12, and the output end of the drive motor 11 is located outside the storage space. The output end of the drive motor 11 is connected to the support platform 20 through the coupling 13, and the drive motor 11 drives the support platform 20 to rotate through the coupling 13 to realize the position rotation of the cleaning device 30 and the detection device 40.

[0061] In some embodiments of the present invention, the center of gravity of the cleaning device 30 and the center of gravity of the detection device 40 are symmetrically arranged about the rotation axis of the support platform 20, that is, the center of gravity of the cleaning device 30 and the center of gravity of the detection device 40 are symmetrically arranged about the output axis of the drive motor 11, that is, the line connecting the center of gravity of the cleaning device 30 and the center of gravity of the detection device 40 is perpendicular to the output shaft of the drive motor 11, and the vertical distance from the center of gravity of the cleaning device 30 to the output shaft of the drive motor 11 is equal to the vertical distance from the center of gravity of the detection device 40 to the output shaft of the drive motor 11, so that the support platform 20 carrying the cleaning device 30 and the detection device 40 is kept balanced, the center of gravity of the support platform 20 carrying the cleaning device 30 and the detection device 40 is avoided from shifting, and the flight stability of the support platform 20 carrying the cleaning device 30 and the detection device is ensured by the drone 10.

[0062] Furthermore, the cleaning device 30 and the detection device 40 are of equal or comparable weight. The cleaning device 30 and the detection device 40 of equal or comparable weight cause the two ends of the support platform 20 to be subjected to comparable downward forces. The support platform 20 is also subjected to an upward pulling force from the output end of the drone 10. The cleaning device 30 and the detection device 40 are of equal or comparable weight, and the center of gravity of the cleaning device 30 and the detection device 40 are symmetrical about the output axis of the drone 10, that is, the two ends of the support platform 20 are subjected to two downward forces of equal magnitude, and the distances from the two downward forces to the upward pulling force are equal, thereby ensuring the balance of the support platform 20 and further ensuring the flight stability of the drone 10.

[0063] like Figure 3 , Figure 4 As shown, in some embodiments of the present invention, the support platform 20 includes: a support frame 21, and the output end of the driving motor 11 is connected to the top of the support frame 21 through a coupling 13. The support frame 21 has a receiving chamber 211 with two ends opened, the cleaning device 30 is arranged at one opening of the receiving chamber 211, and the detection device 40 is arranged at the other opening of the receiving chamber 211. The driving part of the cleaning device 30 is located in the receiving chamber 211, and the cleaning member 33 of the cleaning device 30 is located outside the receiving chamber 211, and the cleaning member 33 is retractable. The driving part of the detection device 40 is located in the receiving chamber 211, and the detection part of the detection device 40 is located outside the receiving chamber 211, and the detection part of the detection device 40 can be switched between an open state and a clamped state. Specifically, the cleaning part of the cleaning device 30 and the detection part of the detection device 40 are respectively arranged at two ends of the supporting frame 21, and the distances between the cleaning part and the detection part and the rotating axis of the supporting frame 21 are equal or equivalent. The position change of the cleaning part of the cleaning device 30 and the detection part of the detection device 40 can be achieved by rotating the supporting platform 20, thereby improving the speed of the position change of the cleaning device 30 and the detection device 40, and further improving the overall detection efficiency of the detection equipment.

[0064] In other embodiments of the present invention, the support platform 20 may also be a plate structure. In order to improve the connection reliability between the cleaning device 30, the detection device 40 and the support platform 20, and at the same time, to protect the driving parts of the cleaning device 30 and the detection device 40, it is preferred to use the support frame 21 as the main body of the support platform 20.

[0065] like Figure 3 , Figure 4As shown, in some embodiments of the present invention, the support platform 20 further includes: a support frame 22, the support frame 22 is connected to the side of the support frame 21 away from the drone 10, that is, the support frame 22 is connected to the bottom of the support frame 21. The two ends of the support frame 22 are respectively located on the opposite sides of the support frame 21, that is, the two ends of the support frame 22 are respectively located outside the support frame 21, so that batteries and controllers are respectively arranged at the two ends of the support frame 22. Specifically, the battery can be electrically connected to the drive motor 11, the cleaning motor 31 and the detection motor 41 to provide power for the drive motor 11, the cleaning motor 31 and the detection motor 41. The controller can be electrically connected to the drive motor 11, the cleaning motor 31, and the detection motor 41 to control the action of the drive motor 11, the cleaning motor 31 and the detection motor 41.

[0066] like Figures 3 to 5 As shown, in some embodiments of the present invention, the cleaning device 30 includes: a cleaning motor 31, a telescopic assembly 32 and a cleaning member 33, wherein the cleaning motor 31 is connected to the support frame 21 of the support platform 20, the output end of the cleaning motor 31 is connected to the fixed end of the telescopic assembly 32, and the movable end of the telescopic assembly 32 is used to connect the cleaning member 33. Specifically, the cleaning motor 31 is located in the accommodating cavity 211 of the support frame 21, part of the telescopic assembly 32 is located in the accommodating cavity 211, and the telescopic assembly 32 is close to an opening of the accommodating cavity 211, and the movable end of the telescopic assembly 32 extends to the outside of the accommodating cavity 211 through the opening to connect with the cleaning member 33 outside the accommodating cavity 211. The cleaning motor 31 drives the telescopic assembly 32 to rotate through its output end, and the movable end of the telescopic assembly 32 drives the cleaning member 33 to rotate together, so that the cleaning member 33 cleans the surface of the flash detector 210.

[0067] like Figure 5 As shown, in some embodiments of the present invention, the telescopic assembly 32 includes: an outer sleeve 321, an inner sleeve 322 and a telescopic spring 323, wherein the cleaning motor 31 is drivingly connected to the outer sleeve 321, the outer sleeve 321 is sleeved on the inner sleeve 322, the inner sleeve 322 is slidably connected to the outer sleeve 321, the inner sleeve 322 is used to connect the cleaning member 33, the cleaning member 33 is located outside the outer sleeve 321, the telescopic spring 323 is located inside the outer sleeve 321, and the two ends of the telescopic spring 323 are respectively connected to the outer sleeve 321 and the inner sleeve 322. The cleaning motor 31 drives the outer sleeve 321 to rotate, the outer sleeve 321 drives the inner sleeve 322 slidably connected thereto to rotate, and the inner sleeve 322 causes the cleaning member 33 to rotate together with it, so that the cleaning member 33 cleans the surface of the flasher 210. Specifically, the cleaning member 33 can be a cleaning ball.

[0068] Specifically, a telescopic spring 323 is provided between the inner sleeve 322 and the outer sleeve 321. When the cleaning member 33 of the cleaning device 30 contacts the lightning receptor 210, the vibration generated by the blade 200 is transmitted to the cleaning member 33 through the lightning receptor 210. The cleaning member 33 transmits the vibration to the telescopic spring 323. The telescopic spring 323 acts as a buffer, thereby reducing the vibration transmitted to the supporting platform 20, thereby reducing the influence of the vibration of the blade 200 on the drone 10, and making the process of the cleaning member 33 cleaning the surface of the lightning receptor 210 smoother.

[0069] Furthermore, the inner sleeve 322 is slidably connected to the outer sleeve 321, and no relative rotation occurs between the inner sleeve 322 and the outer sleeve 321. Corresponding limiting structures may be provided on the outer wall of the inner sleeve 322 and the inner wall of the outer sleeve 321 to limit the relative rotation between the inner sleeve 322 and the outer sleeve 321. For example, a protrusion may be provided on the outer wall of the inner sleeve 322, and a groove 4271 may be provided on the inner wall of the outer sleeve 321. The groove 4271 is arranged along the length direction of the outer sleeve 321, and the protrusion is matched with the groove 4271. The relative rotation between the inner sleeve 322 and the outer sleeve 321 is limited by the cooperation between the protrusion and the groove 4271. At the same time, when the inner sleeve 322 and the outer sleeve 321 move relative to each other, the protrusion moves relative to each other along the groove 4271.

[0070] like Figures 3 to 5 As shown, in some embodiments of the present invention, the cleaning device 30 further includes: a buffer 34, the buffer 34 connects the free end of the telescopic assembly 32 and the cleaning member 33, specifically, one end of the buffer 34 is connected to the inner sleeve 322 of the telescopic assembly 32, and the other end of the buffer 34 is connected to the cleaning member 33. The buffer 34 is connected between the inner sleeve 322 and the cleaning member 33 to play a certain buffering role, which can further reduce the vibration transmitted from the blade 200 to the drone 10, and further improve the stability of the operation of the drone 10. Specifically, the buffer 34 is a rubber gasket.

[0071] like Figure 3 , Figure 4 and Figures 6 to 8As shown, in some embodiments of the present invention, the detection device 40 includes: a detection motor 41 and a clamping claw assembly, wherein the detection motor 41 is connected to the support frame 21 of the support platform 20, and the detection motor 41 is located in the accommodating cavity 211 of the support frame 21, the detection motor 41 is driven to connect to the clamping claw assembly, part of the clamping claw assembly is located in the accommodating cavity 211, and the remaining part of the clamping claw assembly is located outside the accommodating cavity 211, and the detection motor 41 drives the clamping claw assembly to switch between an open state and a clamped state. After the cleaning device 30 cleans the lightning receptor 210, the driving motor 11 drives the support platform 20 to rotate so that the detection device 40 rotates to the position of the lightning receptor 210, and the detection motor 41 of the detection device 40 drives the clamping claw assembly to be in an open state. When the position of the clamping claw assembly corresponds to that of the lightning receptor 210, the detection motor 41 drives the clamping claw assembly to close so that the clamping claw assembly clamps the lightning receptor 210, and at this time, the clamping claw assembly is in a clamped state, and the clamping claw assembly detects the lightning receptor 210.

[0072] like Figure 3 , Figure 4 and Figures 6 to 8 As shown in some embodiments of the present invention, the clamping jaw assembly includes: a screw 421, a fixed platform 422, a fixed rod 423, a nut 424, a connecting platform 425, a connecting rod 426 and a clamping jaw 427, wherein the detection motor 41 is driven and connected to the screw 421, the screw 421 is passed through the fixed platform 422, the fixed platform 422 is fixedly connected to the support frame 21 of the support platform 20, and the fixed platform 422 is arranged at one end of the support frame 21 away from the cleaning device 30, at least two fixed rods 423 are connected to the side of the fixed platform 422 away from the support frame 21, and at least two fixed rods 423 are arranged along the circumference of the screw 421. The lead screw 421 cooperates with the nut 424, and the nut 424 is rotatably connected to the connecting platform 425. The connecting platform 425 is arranged on the side of the nut 424 away from the fixed platform 422, and the connecting platform 425 is sleeved on at least two fixed rods 423, and one end of each fixed rod 423 away from the fixed platform 422 is hinged to a clamp 427, the first end of the connecting rod 426 is hinged to the connecting platform 425, and the second end of the connecting rod 426 is hinged to the clamp 427.

[0073] The detection motor 41 drives the lead screw 421 to rotate, and the nut 424 sleeved on the lead screw 421 rotates. Under the action of the fixed rod 423, the nut 424 drives the connecting platform 425 to move along the fixed rod 423. As the connecting platform 425 moves, the angle between the connecting platform 425 and the first end of the connecting rod 426 changes. The angle of the clamping jaw 427 hinged to the second end of the connecting rod 426 changes under the hinged action of the fixed fixed rod 423, thereby extending or clamping the clamping jaw 427.

[0074] Specifically, the detection motor 41 drives the lead screw 421 to rotate clockwise, the nut 424 drives the connecting platform 425 to move along the fixed rod 423 in the direction away from the support platform 20, the connecting platform 425 drives the first end of the connecting rod 426 to move in the direction away from the support platform 20, and the second end of the connecting rod 426 causes the clamping jaw 427 to tighten in the direction of the lead screw away from one end of the connecting rod 426, that is, at least two clamping jaws 427 are tightened in the direction of the lead screw 421, so that the clamping jaw assembly is in a clamped state. The detection motor 41 drives the lead screw 421 to rotate counterclockwise, the nut 424 drives the connecting platform 425 to move along the fixed rod 423 in the direction toward the support platform 20, the connecting platform 425 drives the first end of the connecting rod 426 to move in the direction of the support platform 20, and the second end of the connecting rod 426 causes the clamping jaw 427 to extend in the direction away from the lead screw 421 away from one end of the connecting rod 426, that is, at least two clamping jaws 427 extend in the direction away from the lead screw 421, so that the clamping jaw assembly is in an extended state.

[0075] Specifically, a detection sheet is provided on the inner side of the clamp 427. When the clamp 427 clamps the lightning receptor 210, the detection sheet sends a pulse signal, and the ground end receives the pulse signal, that is, the lightning receptor 210 is detected by the traveling wave method. The traveling wave method detection is a wireless detection method. This detection method does not require the drone 10 to be flown with a wire, thus avoiding the problem of unstable flight and difficulty in hovering during the process of flying with a wire. Further, a groove 4271 is provided on one side of the clamp 427 for clamping the lightning receptor 210, and the detection sheet is arranged in the groove 4271. When the clamp 427 clamps the edge of the lightning receptor 210, the detection sheet contacts the lightning receptor 210.

[0076] The number of the clamping jaws 427 is at least two, and the number of the fixed rod 423, the connecting rod 426 and the clamping jaws 427 is the same, and the fixed rod 423, the connecting rod 426 and the clamping jaws 427 are arranged in a one-to-one correspondence. The two clamping jaws 427 can achieve the clamping of the lightning receptor 210, and the two clamping jaws 427 can further improve the contact reliability between the clamping jaws 427 and the lightning receptor 210. In this embodiment, the number of the clamping jaws 427 is three, and on the basis of ensuring the reliable contact between the clamping jaws 427 and the lightning receptor 210, the number of parts and the weight of the entire detection device 40 are reduced.

[0077] In this embodiment, the detection device further includes an image acquisition device, which is arranged on the detection device 40 to monitor and adjust the contact between the clamping claw 427 of the detection device 40 and the lightning receptor 210, the image acquisition device is arranged on the cleaning device 30 to monitor and adjust the cleaning of the lightning receptor 210 by the cleaning device 30, and the image acquisition device is arranged on the drone 10 to monitor and adjust the flight position of the drone 10. By monitoring the cleaning state and the detection state through the image acquisition device, the working state of the detection device can be adjusted according to the cleaning state and the detection state, so as to improve the working efficiency, reduce the working cost, and improve the detection accuracy.

[0078] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A wind turbine blade lightning arrester detection device based on a drone, characterized in that: The detection equipment comprises: Drones; A support platform, the support platform is rotatably connected to the bottom of the drone; A cleaning device, the cleaning device is arranged on the supporting platform, and the cleaning device is used to clean the surface of the lightning receptor; A detection device, wherein the detection device is arranged on the support platform, the detection device and the cleaning device are arranged at two ends of the support platform respectively, and the detection device is used to detect the pulse signal of the lightning receptor.

2. The wind turbine blade lightning arrester detection device based on a drone according to claim 1 is characterized in that: The center of gravity of the cleaning device and the center of gravity of the detection device are symmetrically arranged about the rotation axis of the supporting platform.

3. The wind turbine blade lightning arrester detection device based on a drone according to claim 1 is characterized in that: The cleaning device comprises: A cleaning motor, the cleaning motor is connected to the supporting platform; A telescopic assembly, the cleaning motor is drivingly connected to the telescopic assembly, and the cleaning motor is used to drive the telescopic assembly to rotate; A cleaning piece, wherein the free end of the telescopic assembly is used for connecting the cleaning piece.

4. The wind turbine blade lightning arrester detection device based on a drone according to claim 3 is characterized in that: The cleaning device also includes: A buffer component is provided, wherein the buffer component connects the free end of the telescopic component and the cleaning component.

5. The wind turbine blade lightning arrester detection device based on a drone according to claim 3 is characterized in that: The telescopic assembly comprises: An outer sleeve, the cleaning motor is connected to the outer sleeve, and the cleaning motor is used to drive the outer sleeve to rotate; An inner sleeve, wherein the inner sleeve is slidably connected to the inner wall of the outer sleeve, and the free end of the inner sleeve is used to connect to the cleaning member; A telescopic spring is located in the outer sleeve, and two ends of the telescopic spring are respectively connected to the outer sleeve and the inner sleeve.

6. The wind turbine blade lightning arrester detection device based on a drone according to claim 1 is characterized in that: The detection device comprises: A detection motor, the detection motor is connected to the support platform; The clamping jaw assembly is connected to the detection motor driving the clamping jaw assembly to drive the clamping jaw assembly to switch between an open state and a clamped state. The clamping jaw assembly is used to detect the pulse signal of the lightning receptor.

7. The wind turbine blade lightning arrester detection device based on a drone according to claim 6 is characterized in that: The clamping jaw assembly comprises: A lead screw, the detection motor is drivingly connected to the lead screw; A fixed platform, the fixed platform is connected to an end of the support platform away from the cleaning device, and the fixed platform is sleeved on the lead screw; A fixing rod, the fixing rod being connected to a side of the fixing platform facing away from the supporting platform; A nut, the nut being matched with the lead screw; A connecting platform, the nut is rotatably connected to the connecting platform, the connecting platform is arranged on a side of the nut away from the fixing platform, and the connecting platform is sleeved on the fixing rod; A connecting rod, a first end of which is hinged to the fixing rod; A clamping jaw, wherein the second end of the connecting rod is hinged to the fixed end of the clamping jaw, the fixed end of the clamping jaw is hinged to the fixed rod, and a detection sheet is provided on the inner side of the clamping jaw; The number of the clamping jaws is at least two, the number of the fixing rods, the connecting rods and the clamping jaws is the same, and the fixing rods, the connecting rods and the clamping jaws are arranged in a one-to-one correspondence.

8. The wind turbine blade lightning arrester detection device based on a drone according to claim 7 is characterized in that: A groove is provided on one side of the clamping claw for clamping the lightning receptor, and the detection sheet is arranged in the groove.

9. The wind turbine blade lightning arrester detection device based on a drone according to claim 1, characterized in that: The support platform comprises: The supporting frame has a receiving cavity with openings at both ends, the detecting device is arranged at one opening of the receiving cavity, and the cleaning device is arranged at the other opening of the receiving cavity.

10. The wind turbine blade lightning arrester detection device based on a drone according to claim 9, characterized in that: The support platform also includes: The support frame is connected to a side of the support frame away from the UAV, and two ends of the support frame extend to the outside of the support frame respectively.

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