Lightning protection detection unmanned aerial vehicle for blade lightning arrester of wind driven generator

Abstract

The utility model provides a wind driven generator blade lightning arrester lightning protection detection unmanned aerial vehicle, which relates to the technical field of detection unmanned aerial vehicles, and comprises an unmanned aerial vehicle body and a detection probe, and the bottom of the unmanned aerial vehicle body is fixedly connected with a mounting plate. According to the unmanned aerial vehicle detection device, during detection, an external detector is connected with the detection probe through the connector, the distance between the unmanned aerial vehicle bodies can be guaranteed through the range finder, and then the detection probe can freely stretch out and draw back under the cooperation of the multi-stage electric push rod, the damper, the spring, the connecting plate, the ball sleeve, the universal ball and the connecting rod; and when the detection probe makes contact with the blade, certain buffering and rotation can be provided, so that the detection probe can make contact with the surface of the blade more stably and detect the grounding resistance of the blade, the unmanned aerial vehicle body and various detection devices are used for assistance, the difficulty in high-altitude detection of the fan blade is effectively overcome, and the detection efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection drones, in particular to a lightning arrester lightning protection detection drone for wind turbine blades. Background Technique

[0002] Wind turbine blades are an important part of wind turbines. Their main function is to capture wind energy and convert it into mechanical energy, and then convert it into electrical energy through a generator. Lightning arresters are usually installed on wind turbine blades to prevent lightning from damaging the blades and the entire wind turbine system. Lightning protection detection is an important step to ensure the normal function of the lightning arrester and the safe operation of the wind turbine.

[0003] In the prior art, the safety detection of lightning arresters on wind turbine blades is usually completed manually. Since wind turbine blades are usually installed dozens of meters to hundreds of meters above the ground and high-altitude operations are required, it is difficult for detection personnel to complete the detection tasks quickly and accurately. This not only increases the labor intensity of the detection personnel, but also causes the detection results to be greatly affected by human factors. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that the safety detection of lightning arresters on wind turbine blades is usually completed manually. Since wind turbine blades are usually installed dozens of meters to hundreds of meters above the ground and high-altitude operations are required, it is difficult for detection personnel to complete the detection tasks quickly and accurately. This not only increases the labor intensity of the detection personnel, but also causes the detection results to be greatly affected by human factors, and a lightning arrester lightning protection detection drone for wind turbine blades is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a lightning arrester lightning protection detection drone for wind turbine blades, including: a drone body and a detection probe. A mounting plate is fixedly connected to the bottom of the drone body. A fixing block is fixedly connected to the center position of the bottom of the mounting plate. A multi-stage electric push rod is fixedly connected to the inner surface of the fixing block. A connecting plate is fixedly connected to the driving end of the multi-stage electric push rod. A damper is fixedly connected to the left end surface of the connecting plate. A ball sleeve is fixedly connected to the left end surface of the damper. A universal ball is arranged on the inner surface of the ball sleeve.

[0006] Preferably, a connecting rod is fixedly connected to the outer surface of the universal ball, and the left end surface of the connecting rod is fixedly connected to the right end surface of the detection probe.

[0007] Preferably, a connecting head is fixedly connected to the outer surface of the detection probe, and the connecting head is located at the bottom of the detection probe.

[0008] Preferably, a buffer spring is sleeved on the outer surface of the damper, and one end of the buffer spring is fixedly connected to the right surface of the ball sleeve.

[0009] Preferably, the other end of the buffer spring is fixedly connected to the left end face of the connecting plate, and support frames are symmetrically and fixedly connected to the positions near both sides of the bottom of the UAV body.

[0010] Preferably, a rangefinder is fixedly connected to the position near the left side of the top of the mounting plate, and a micro camera is fixedly connected to the position near the left side of the bottom of the mounting plate.

[0011] Preferably, a wind direction and wind speed sensor is fixedly connected to the position near the right side of the bottom of the mounting plate.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, during detection, an external detector is connected to the detection probe through a connector. The distance between the UAV bodies can be ensured by the rangefinder. Then, with the cooperation of the multi-stage electric push rod, the damper, the spring, the connecting plate, the ball sleeve, the universal ball and the connecting rod, the detection probe can be telescopically moved freely. And when the detection probe contacts the blade, certain buffering and rotation can be provided, so that the detection probe can contact the blade surface more stably, and the grounding resistance of the blade is detected. Assisted by the UAV body and various detection devices, the difficulties in high-altitude detection of wind turbine blades are effectively overcome, and the detection efficiency and safety are improved.

[0014] 2. In the present utility model, the wind direction and wind speed sensor can detect the wind speed around the wind turbine during the ascent of the UAV body to ensure the safety of the UAV body during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of a lightning arrester lightning protection detection UAV for wind turbine blades proposed by the present utility model;

[0016] Figure 2 is a perspective view of a lightning arrester lightning protection detection UAV for wind turbine blades proposed by the present utility model;

[0017] Figure 3 is a perspective view of a lightning arrester lightning protection detection UAV for wind turbine blades proposed by the present utility model;

[0018] Figure 4 is Figure 3 an enlarged view of part A in

[0019] Legend: 1. UAV body; 2. Rangefinder; 3. Mounting plate; 4. Miniature camera; 5. Detection probe; 6. Ball sleeve; 7. Multi-stage electric push rod; 8. Wind direction and wind speed sensor; 9. Support frame; 10. Damper; 11. Buffer spring; 12. Connecting plate; 13. Fixed block; 14. Connector; 15. Connecting rod; 16. Universal ball. Detailed implementation

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0022] Embodiment 1, as Figures 1 - 4 shown, the present invention provides a lightning arrester lightning protection detection UAV for wind turbine blades, including: a UAV body 1 and a detection probe 5. The bottom of the UAV body 1 is fixedly connected with a mounting plate 3. The center position of the bottom of the mounting plate 3 is fixedly connected with a fixed block 13. The inner surface of the fixed block 13 is fixedly connected with a multi-stage electric push rod 7. The driving end of the multi-stage electric push rod 7 is fixedly connected with a connecting plate 12. The left end face of the connecting plate 12 is fixedly connected with a damper 10. The left end face of the damper 10 is fixedly connected with a ball sleeve 6. The inner surface of the ball sleeve 6 is provided with a universal ball 16. The outer surface of the universal ball 16 is fixedly connected with a connecting rod 15. The left end face of the connecting rod 15 is fixedly connected with the right end face of the detection probe 5. The outer surface of the detection probe 5 is fixedly connected with a connector 14. The connector 14 is located at the bottom of the detection probe 5. The outer surface of the damper 10 is sleeved with a buffer spring 11. One end of the buffer spring 11 is fixedly connected with the right surface of the ball sleeve 6. The other end of the buffer spring 11 is fixedly connected with the left end face of the connecting plate 12. The bottom of the UAV body 1 is symmetrically and fixedly connected with support frames 9 near both sides. The position near the left side of the top of the mounting plate 3 is fixedly connected with a rangefinder 2. The position near the left side of the bottom of the mounting plate 3 is fixedly connected with a miniature camera 4.

[0023] The effect achieved by the entire Embodiment 1 is that during the detection, the UAV body 1, the rangefinder 2, the micro camera 4, the multi-stage electric push rod 7, and the wind direction and wind speed sensor 8 are wirelessly connected to an external tablet computer. The detection line on the lightning detector is connected through the connector 14, and then the UAV body 1 is placed at the bottom of the wind turbine blade through the support frame 9. Then, the UAV body 1 is controlled to take off through the tablet computer. When the UAV body 1 flies towards the wind turbine blade, the distance between the UAV body 1 and the blade can be measured in real time through the rangefinder 2 to ensure the safety between the UAV body 1 and the blade and avoid collisions. When the position of the UAV is adjusted, the multi-stage electric push rod 7 can be controlled to start, and its driving end extends outward to drive the connecting plate 12 to move outward, so that the detection probe 5 contacts the blade. At the same time, when the detection probe 5 contacts the blade, through the cooperation of the damper 10 and the buffer spring 11, the vibration and shaking generated during the contact between the detection probe 5 and the blade can be absorbed and reduced, enabling the detection probe 5 to contact the blade surface more stably, thereby improving the accuracy and stability of the detection. At the same time, through the cooperation of the universal ball 16, the connecting rod 15, and the ball sleeve 6, the detection probe 5 can be slightly shaken, thereby reducing the friction and pressure between the detection probe 5 and the blade and reducing the risk of scratching or damaging the blade surface. When the detection probe 5 contacts the blade, the grounding resistance of the blade can be detected through the lightning detector and the detection line. At the same time, through the movement of the UAV body 1, the blade and the lightning arrester can be safely detected through the micro camera 4. With the assistance of the UAV body 1 and various detection devices, the difficulties in the high-altitude detection of the fan blade can be effectively overcome, and the detection efficiency and safety can be improved.

[0024] Embodiment 2, as Figures 1 - 4 shown, a wind direction and wind speed sensor 8 is fixedly connected to a position near the right side of the bottom of the mounting plate 3.

[0025] The effect achieved by the entire Embodiment 2 is that during the flight of the UAV body 1, the wind speed around the wind turbine during the ascent of the UAV body 1 can be detected through the wind direction and wind speed sensor 8 to ensure the safety of the operation of the UAV body 1.

[0026] Working principle: When conducting detection, the UAV body 1, rangefinder 2, micro camera 4, multi-stage electric push rod 7 and wind direction and speed sensor 8 are wirelessly connected to an external tablet computer. The detection circuit on the lightning detector is connected through the connector 14. Then, the UAV body 1 is placed at the bottom of the wind turbine blade through the support frame 9. Then, the UAV body 1 is controlled to take off through the tablet computer. When the UAV body 1 flies towards the wind turbine blade, the distance between the UAV body 1 and the blade can be measured in real time through the rangefinder 2 to ensure the safety between the UAV body 1 and the blade and avoid collisions. The wind speed around the wind turbine during the ascent of the UAV body 1 can be detected through the wind direction and speed sensor 8 to ensure the safety of the UAV body 1 during operation. After the position of the UAV is adjusted, the multi-stage electric push rod 7 can be controlled to start, and its driving end extends outward, driving the connecting plate 12 to move outward, so that the detection probe 5 contacts the blade. At the same time, when the detection probe 5 contacts the blade, through the cooperation of the damper 10 and the buffer spring 11, the vibration and shaking generated during the contact between the detection probe 5 and the blade can be absorbed and reduced, enabling the detection probe 5 to contact the blade surface more stably, thereby improving the accuracy and stability of the detection. At the same time, through the cooperation of the universal ball 16 and the ball sleeve 6, the detection probe 5 can be slightly shaken, thereby reducing the friction and pressure between the detection probe 5 and the blade and reducing the risk of scratching or damaging the blade surface. After the detection probe 5 contacts the blade, the grounding resistance of the blade can be detected through the lightning detector and the detection circuit. At the same time, through the movement of the UAV body 1, the blade and the lightning arrester can be safely detected through the micro camera 4. With the assistance of the UAV body 1 and various detection devices, the difficulties in the high-altitude detection of the fan blade can be effectively overcome, and the detection efficiency and safety can be improved.

[0027] The wiring diagrams of the UAV body 1, rangefinder 2, micro camera 4, multi-stage electric push rod 7 and wind direction and speed sensor 8 in the present utility model belong to the common knowledge in the field. Their working principles are already known technologies, and their models are selected according to actual use. Therefore, the control methods and wiring arrangements of the UAV body 1, rangefinder 2, micro camera 4, multi-stage electric push rod 7 and wind direction and speed sensor 8 will not be explained in detail.

[0028] The above is only a preferred embodiment of the present utility model, and it does not limit the present utility model in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A lightning protection detection UAV for a wind turbine blade lightning arrester, characterized in that, Including: The UAV body (1) and the detection probe (5), the bottom of the UAV body (1) is fixedly connected with a mounting plate (3), the center position of the bottom of the mounting plate (3) is fixedly connected with a fixing block (13), the inner surface of the fixing block (13) is fixedly connected with a multi-stage electric push rod (7), the driving end of the multi-stage electric push rod (7) is fixedly connected with a connecting plate (12), the left end face of the connecting plate (12) is fixedly connected with a damper (10), the left end face of the damper (10) is fixedly connected with a ball sleeve (6), and a universal ball (16) is arranged on the inner surface of the ball sleeve (6); The outer surface of the universal ball (16) is fixedly connected with a connecting rod (15), and the left end face of the connecting rod (15) is fixedly connected with the right end face of the detection probe (5).

2. The lightning protection detection UAV for the lightning arrester of the wind turbine blade according to claim 1, wherein: The outer surface of the detection probe (5) is fixedly connected with a connector (14), and the connector (14) is located at the bottom of the detection probe (5).

3. The lightning protection detection unmanned aerial vehicle for a wind turbine blade lightning arrester according to claim 2, wherein: A buffer spring (11) is sleeved on the outer surface of the damper (10), and one end of the buffer spring (11) is fixedly connected with the right surface of the ball sleeve (6).

4. The lightning protection detection UAV for the lightning arrester of a wind turbine blade according to claim 3, characterized in that: The other end of the buffer spring (11) is fixedly connected with the left end face of the connecting plate (12), and support frames (9) are symmetrically and fixedly connected to both sides of the bottom of the UAV body (1).

5. The lightning protection detection UAV for the lightning arrester of a wind turbine blade according to claim 4, characterized in that: A rangefinder (2) is fixedly connected to the top of the mounting plate (3) near the left side, and a micro camera (4) is fixedly connected to the bottom of the mounting plate (3) near the left side.

6. The lightning protection detection unmanned aerial vehicle for a wind turbine blade lightning arrester according to claim 5, wherein: An anemometer and wind vane sensor (8) is fixedly connected to the bottom of the mounting plate (3) near the right side.

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