Device for testing lightning protection of blades of wind generating set by unmanned aerial vehicle

Abstract

The utility model relates to the technical field of wind power generation equipment, in particular to equipment for testing lightning protection of blades of a wind generating set through an unmanned aerial vehicle, which comprises the unmanned aerial vehicle, a signal transceiver arranged on one side of the top of the unmanned aerial vehicle, a wind speed sensor arranged on the other side of the top of the unmanned aerial vehicle and a limiting assembly arranged between the signal transceiver and the wind speed sensor. The limiting assembly comprises an insulation pressing piece, guide rods are slidably inserted into one side of the insulation pressing piece and are arranged in a circumferential array mode, the tops of the guide rods are fixedly connected with the flexible copper net, one guide rod is slidably sleeved with a guide ring, the guide ring is fixedly connected with one end of a wire, and the other end of the wire is connected with one end of the direct resistance meter. The other end of the direct resistance meter is connected with a tower footing grounding wire; the contact type blade lightning protection system resistance value test is carried out on the blade tips in sequence through the unmanned aerial vehicle, the safety and the measurement efficiency are improved, the measurement precision is guaranteed, meanwhile, the applicability is improved, especially for high towers and large units, and the problem that a traditional method is large in operation difficulty is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation equipment technical field, concretely is a kind of unmanned aerial vehicle test wind turbine blade lightning protection equipment. BACKGROUND

[0002] During the operation of wind turbine, the blade is exposed to the natural environment for a long time, and is vulnerable to lightning. In order to ensure the safety and lightning protection performance of the blade, it is usually necessary to regularly detect the resistance value of the lightning protection system of the blade.

[0003] In the prior art, the traditional measurement method relies on manual tower climbing or contact measurement with the blade using a long rod tool. However, the above operation mode has the following problems: 1. poor safety, especially in adverse weather conditions, personnel safety is difficult to guarantee; 2. low efficiency, time-consuming and laborious; 3. limited applicability, for high towers and large wind turbine units, the operation difficulty of the traditional method is greater, and the applicable range is limited. Therefore, the utility model provides an unmanned aerial vehicle test wind turbine blade lightning protection equipment to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an unmanned aerial vehicle test wind turbine blade lightning protection equipment to solve the problems raised in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: an unmanned aerial vehicle test wind turbine blade lightning protection equipment, comprising: an unmanned aerial vehicle, a signal transceiver is arranged on one side of the top of the unmanned aerial vehicle, a wind speed sensor is arranged on the other side of the top of the unmanned aerial vehicle, and a limiting assembly is arranged between the signal transceiver and the wind speed sensor.

[0006] The limiting assembly comprises an insulating pressing sheet, a guide rod is slidably connected to one side of the insulating pressing sheet, the guide rods are arranged in a circular array, the top of the guide rod is fixedly connected with a flexible copper mesh, a guide ring is slidably connected to one of the guide rods, the guide ring is fixedly connected with one end of a wire, the other end of the wire is connected with one end of a direct resistance instrument, and the other end of the direct resistance instrument is connected with a tower foundation grounding wire.

[0007] Preferably, the signal transceiver and the wind speed sensor are fixedly connected with the top of the unmanned aerial vehicle, and the signal transceiver and the wind speed sensor are electrically connected.

[0008] Preferably, the signal transceiver is electrically connected with an external terminal control device, and a power supply box is fixedly installed on one side of the bottom of the unmanned aerial vehicle.

[0009] Preferably, the power supply box is electrically connected with the signal transceiver and the wind speed sensor, and a support column is arranged between the signal transceiver and the wind speed sensor.

[0010] Preferably, the support column bottom is fixedly connected with a mounting plate, the mounting plate and the unmanned aerial vehicle top are fixedly connected through bolts, and the support column top is provided with a groove.

[0011] Preferably, a support cylinder is fixedly installed in the groove, and a small electric cylinder is fixedly installed in the support cylinder and electrically connected with the power supply box.

[0012] Preferably, the small electric cylinder is electrically connected with an external terminal control device, the small electric cylinder output end is fixedly connected with a connecting seat, and the support cylinder outer circle surface and one side of the insulating pressing sheet are both fixedly connected with connecting ears.

[0013] Preferably, the connecting seat and one end of the long plate are rotationally connected through a pin shaft, the other end of the long plate is rotationally connected with the connecting ear through a pin shaft, and the connecting ears fixedly connected with the support cylinder outer circle surface and one side of the insulating pressing sheet are rotationally connected through a pin shaft and the short plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] When resistance testing is performed, the unmanned aerial vehicle is started to take off through the external terminal control device, the unmanned aerial vehicle flies to the blade tip below, the flexible copper net above the unmanned aerial vehicle is contacted with the blade tip and continuously stressed, the conduction of the guide rod, the guide ring and the wire is realized, the resistance value of the blade tip-tower foundation can be obtained through the reading of the straight resistance meter, the blade to be detected is rotated to the Y-shaped angle vertical ground position, the above steps are repeated, and the contact type lightning protection system resistance value measurement is sequentially performed on the blade tip, so that the unmanned aerial vehicle is used for testing, the safety and the measurement efficiency are improved, the measurement precision is ensured, the applicability is improved, and the problems of the high operation difficulty of the traditional method are solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2 It is a whole structure bottom view schematic view of the utility model;

[0018] Fig. 3 It is an internal structure top view schematic view of the utility model;

[0019] Fig. 4 It is an internal structure side view schematic view of the utility model.

[0020] In the drawing: 1, unmanned aerial vehicle; 2, signal transceiver; 3, wind speed sensor; 4, limiting assembly; 5, insulating pressing sheet; 6, guide rod; 7, guide ring; 8, wire; 9, straight resistance meter; 10, power supply box; 11, support column; 12, mounting plate; 13, groove; 14, support cylinder; 15, small electric cylinder; 16, connecting seat; 17, connecting ear; 18, long plate; 19, short plate; 20, flexible copper net. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme of the utility model to be clear, complete description, and the advantage is more clear and obvious, the following combining with the drawing to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, rather than all the embodiments, only to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without doing the premise of creative labor belong to the scope of protection of the utility model.

[0022] Embodiment one: please refer to Figs. 1 to 4 The utility model provides a technical scheme: a kind of unmanned plane test wind turbine blade lightning protection equipment, it include: unmanned plane 1, signal transceiver 2 is provided in unmanned plane 1 top one side, wind speed sensor 3 is provided in unmanned plane 1 top other side, limit component 4 is arranged between signal transceiver 2 and wind speed sensor 3, limit component 4 includes insulating tablet 5, insulating tablet 5 one side sliding plug-in guide rod 6, guide rod 6 is arranged in circumferential array, guide rod 6 top and flexible copper mesh 20 fixed connection, one of the guide rod 6 slidingly covers guide ring 7, guide ring 7 and wire 8 one end fixed connection, wire 8 other end and one end of straight resistance instrument 9 connect, the other end of straight resistance instrument 9 and tower base ground wire connect.

[0023] Before the blade tip resistance test of impeller, wind speed is detected by wind speed sensor 3, then data information is transmitted to external terminal control equipment by signal transceiver 2 receiving, to facilitate operator to judge whether current environment is suitable for resistance test, when resistance test is carried out, unmanned plane 1 is started by external terminal control equipment and takes off, unmanned plane 1 flies to the blade tip below, makes flexible copper mesh 20 above unmanned plane 1 contact with blade tip and continuously force, by the conduction of guide rod 6, guide ring 7 and wire 8, the length of wire 8 can be extended according to the length of the field environment, then resistance value of blade tip-tower base can be obtained by reading straight resistance instrument 9, the blade to be detected is rotated to the Y type angle perpendicular to ground position, repeat the above steps, in turn, the resistance value of blade tip contact type lightning protection system is measured.

[0024] The signal transceiver 2 and the wind speed sensor 3 are both fixedly connected to the top of the unmanned aerial vehicle 1, the signal transceiver 2 is electrically connected with the wind speed sensor 3, the wind speed sensor 3 arranged can monitor the wind speed in real time, so that the operator can judge whether the detection environment is suitable, the signal transceiver 2 is electrically connected with the external terminal control device, the power supply box 10 is fixedly installed on one side of the bottom of the unmanned aerial vehicle 1, the power supply box 10 is electrically connected with the signal transceiver 2 and the wind speed sensor 3, and the support column 11 is arranged between the signal transceiver 2 and the wind speed sensor 3, through the arrangement of the power supply box 10, the power supply of each component is facilitated, and the stable operation of the whole equipment is ensured.

[0025] Before testing, the impeller is locked, the three blades are in the state of propeller, and the blade to be detected needs to be perpendicular to the ground. When the wind speed is six meters per second (ten minutes average wind speed), the operation can be carried out, the low-speed shaft mechanical lock is opened, the high-speed shaft brake disc is rotated to make the blade into a "Y" type, two mechanical locks on the main shaft flange are locked, the top of the unmanned aerial vehicle 1 is supported by four guide rods 6 to form a support, so as to support the flexible copper mesh 20, the edge position of the flexible copper mesh 20 is fixedly connected with the guide rod 6, the guide rod 6 leads out the wire 8 through the guide ring 7, in the process of unmanned aerial vehicle flight, through the mooring suspension to the ground, one end of the straight resistance instrument 9 is connected, the other end of the straight resistance instrument 9 is connected with the tower foundation grounding wire, the blade is locked in the Y type angle, the unmanned aerial vehicle 1 flies to the blade tip below, the flexible copper mesh 20 is contacted with the blade tip under the control of the unmanned aerial vehicle 1, and the blade tip is continuously stressed, the resistance value of the blade tip-tower foundation is obtained through the reading of the straight resistance instrument 9, the blade to be detected is rotated to the Y type angle perpendicular to the ground position, the above steps are repeated to measure the resistance value of the contact type blade lightning protection system in turn, so that the unmanned aerial vehicle 1 is tested, not only the safety and the measurement efficiency are improved, but also the measurement precision is ensured, and the applicability is improved, especially for high towers and large units, the problem that the operation difficulty of the traditional method is large is solved.

[0026] The embodiment three is based on the embodiment two, the support column 11 bottom is fixedly connected with the mounting plate 12, the mounting plate 12 and the unmanned aerial vehicle 1 top are fixedly connected through the bolt, the support column 11 top is provided with the recess 13, the support column 11 indirectly supports the flexible copper net 20, the support column 11 is fixed through the recess 13 of the top and supports the support cylinder 14, the support cylinder 14 is fixedly installed in the recess 13, the small electric cylinder 15 is fixedly installed in the support cylinder 14, the small electric cylinder 15 and the power supply box 10 are electrically connected, the support cylinder 14 supports and fixes the small electric cylinder 15, the power supply box 10 and the small electric cylinder 15 are connected through the connecting wire, thereby continuously power supplies the small electric cylinder 15, the small electric cylinder 15 and the external terminal control equipment are electrically connected, the connecting seat 16 is fixedly connected to the output end of the small electric cylinder 15, the support cylinder 14 outer circle surface and the one side of the insulating pressing piece 5 are fixedly connected with the connecting lug (17), the connecting seat 16 and the long plate 18 one end are rotatably connected through the pin shaft, the long plate 18 other end is rotatably connected with the connecting lug 17 through the pin shaft, the connecting lug (17) fixedly connected between the support cylinder 14 outer circle surface and the one side of the insulating pressing piece 5 is rotatably connected through the pin shaft and the cooperation of the short plate 19.

[0027] The output end of the small electric cylinder 15 is extended through the external terminal control equipment, thereby the long plate 18 one end is moved under the cooperation of the connecting seat 16 and the pin shaft, the long plate 18 other end is rotatably cooperated with the connecting lug 17 through the pin shaft, thereby driving the insulating pressing piece 5 to move away from the small electric cylinder 15, at the same time, the insulating pressing piece 5 is rotatably cooperated with the short plate 19 and the pin shaft through the connecting lug 17 on it and the connecting lug 17 on the support cylinder 14, thereby making the insulating pressing piece 5 compress the guide rod 6, thereby making the four guide rods 6 be fixed between the recess 13 side wall and the insulating pressing piece 5, further making the guide rod 6 stably support the flexible copper net 20, at the same time, the guide rod 6 can be quickly taken out through the reverse driving of the small electric cylinder 15 movement, thereby facilitating the subsequent replacement and maintenance of the flexible copper net 20, improving the flexibility and practicability of use.

[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An apparatus for testing lightning protection of wind turbine blades by a drone, comprising a drone (1), characterized in that: The unmanned plane (1) top side is provided with signal transceiver (2), unmanned plane (1) top other side is provided with wind speed sensor (3), signal transceiver (2) and wind speed sensor (3) between the limit component (4) is established; The limit component (4) includes an insulating tablet (5), the insulating tablet (5) one side sliding plug-in guide rod (6), guide rod (6) is arranged in a circular array, the guide rod (6) top and flexible copper mesh (20) fixed connection, one of the guide rod (6) on the sliding sleeve guide ring (7), guide ring (7) and wire (8) one end fixed connection, wire (8) other end and straight resistance instrument (9) one end connection, straight resistance instrument (9) other end and tower foundation ground wire connection.

2. The device for testing the lightning protection of the blades of a wind turbine generator set by using a UAV according to claim 1, characterized in that: The signal transceiver (2) and wind speed sensor (3) are fixedly connected with the top of the unmanned plane (1), and the signal transceiver (2) and the wind speed sensor (3) are electrically connected.

3. The device for testing the lightning protection of wind turbine blades according to claim 2, characterized in that: The signal transceiver (2) is electrically connected with the external terminal control device, and the power supply box (10) is fixedly installed on one side of the bottom of the unmanned plane (1).

4. The device for testing the lightning protection of the blades of a wind turbine generator set of a UAV according to claim 3, characterized in that: The power supply box (10) is electrically connected between the signal transceiver (2) and the wind speed sensor (3), and the signal transceiver (2) and the wind speed sensor (3) are provided with support column (11).

5. The device for testing the lightning protection of wind turbine blades of unmanned aerial vehicles according to claim 4, characterized in that: The support column (11) bottom fixedly connected with mounting plate (12), mounting plate (12) and unmanned plane (1) top between through bolt fixed connection, support column (11) top recess (13) is set up.

6. The device for testing the lightning protection of wind turbine blades of unmanned aerial vehicles according to claim 5, characterized in that: The recess (13) is fixedly installed with support cylinder (14), and the support cylinder (14) is fixedly installed with small cylinder (15), and the small cylinder (15) and the power supply box (10) are electrically connected.

7. The device for testing the lightning protection of wind turbine blades according to claim 6, characterized in that: The small cylinder (15) is electrically connected with the external terminal control device, and the output end of the small cylinder (15) is fixedly connected with the connecting seat (16), and the outer ring surface of the support cylinder (14) and one side of the insulating tablet (5) are fixedly connected with the connecting lug (17).

8. The device for testing the lightning protection of wind turbine blades according to claim 7, characterized in that: The connecting seat (16) is rotatably connected with one end of the long plate (18) through the pin shaft, the other end of the long plate (18) is rotatably connected with the connecting lug (17) through the pin shaft, and the connecting lug (17) between the outer ring surface of the support cylinder (14) and one side of the insulating tablet (5) is rotatably connected with the short plate (19) through the pin shaft.

Images