Unmanned aerial vehicle fan blade on-resistance measuring equipment

Abstract

The utility model relates to the field of wind power equipment detection and maintenance, in particular to unmanned aerial vehicle fan blade conduction resistance measuring equipment which comprises an unmanned aerial vehicle connecting plate, a connecting rod is installed on the top of the unmanned aerial vehicle connecting plate, a damping assembly is installed on the connecting rod, and a threaded groove is formed in the top of the connecting rod. The top of the connecting rod is fixedly connected with a copper net support through a bolt, threaded holes matched with the bolt are formed in the top of the copper net support, copper net clamping plates are installed on the top of the copper net support and are two annular plates, and a plurality of threaded holes are formed in the tops of the annular plates and the top of the copper net support. The annular plate is fixedly connected with the copper net support through bolts, the connecting rod comprises an upper connecting rod fixedly connected with the bottom of the copper net support, and the threaded groove is formed in the top of the upper connecting rod. The problem that when an existing unmanned aerial vehicle measures the resistance of the fan blade, the control difficulty and the power performance requirement of the unmanned aerial vehicle are high is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wind power equipment detection and maintenance, concretely to a kind of unmanned aerial vehicle fan blade lead-through resistance measuring equipment. BACKGROUND

[0002] In order to prevent lightning damage, the fan structure must have a small grounding resistance, and corrosion can have a harmful effect on the conductive properties of the fan material, so it needs to be verified regularly to ensure that the resistance of the wire is low enough to safely ground the fault current when lightning strikes, After searching, the Chinese invention patent with application number CN202410950565.X discloses a kind of unmanned aerial vehicle for measuring fan blade lightning protection lead resistance, fan blade lightning protection lead resistance measuring method and device, can measure the lightning protection lead resistance of fan blade without involving manual climbing or using high-altitude work equipment such as basket in related technology, avoid the safety risk existing in related technology, effectively improve the safety and stability of measuring the lightning protection lead resistance of fan blade.

[0003] The structure area of the above-mentioned device for measuring resistance is small, so the unmanned aerial vehicle needs to be stably parked on the fan blade, which not only increases the difficulty of controlling the unmanned aerial vehicle, but also requires the angle of the unmanned aerial vehicle to be aligned with the fan blade, and the unmanned aerial vehicle needs to form a stable connection with the fan blade by suction cup, which not only causes a certain extrusion to the fan blade when connecting, but also requires a large force to pull the suction cup when the unmanned aerial vehicle leaves, and the power performance of the unmanned aerial vehicle is also required to be high. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides an unmanned aerial vehicle fan blade lead-through resistance measuring equipment, which solves the problem that the existing unmanned aerial vehicle has high requirements for the control difficulty and power performance when measuring the resistance of fan blade.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an unmanned aerial vehicle fan blade lead-through resistance measuring equipment, comprising an unmanned aerial vehicle connecting plate, a connecting rod is installed on the top of the unmanned aerial vehicle connecting plate, a damping assembly is installed on the connecting rod, a threaded groove is formed in the top of the connecting rod, a copper mesh support is fixedly connected to the top of the connecting rod by bolts, a threaded hole matched with the bolt is formed in the top of the copper mesh support, a copper mesh clamping plate is installed on the top of the copper mesh support, the copper mesh clamping plate is two annular plates, a plurality of threaded holes are formed in the top of the annular plate and the copper mesh support, and the annular plate and the copper mesh support are fixedly connected by bolts.

[0006] Preferably, the connecting rod comprises a connecting upper rod fixedly connected to the bottom of the copper mesh support, the threaded groove is formed in the top of the connecting upper rod, the bottom of the connecting upper rod is provided with a connecting lower rod movably extended into its interior, and a longitudinal groove is formed in the top of the connecting lower rod.

[0007] Preferably, the inner side of the connecting upper rod is slidably connected with a sliding rod, one end of the sliding rod is movably extended into the longitudinal slot.

[0008] Preferably, the damping assembly comprises a bell-shaped damping platform, a rubber damping ball and a damping spring, the bell-shaped damping platform is installed between the unmanned aerial vehicle connecting plate and the connecting lower rod, the rubber damping ball is installed between the connecting upper rod and the connecting lower rod, and the damping spring is installed on the top of the sliding rod.

[0009] Preferably, the sliding rod is a T-shaped circular rod, a threaded groove is formed in the top of the sliding rod, and one end of the damping spring is movably extended into the threaded groove.

[0010] Preferably, the bottom of the bell-shaped damping platform is fixedly connected with the unmanned aerial vehicle connecting plate, threaded grooves are formed in the opposite sides of the bell-shaped damping platform and the connecting lower rod, and the bell-shaped damping platform and the connecting lower rod are fixedly connected through bolts.

[0011] Preferably, the rubber damping ball is movably extended into the connecting upper rod and the connecting lower rod, and the sliding rod is movably penetrated through the rubber damping ball.

[0012] Compared with the prior art, the unmanned aerial vehicle fan blade conduction resistance measuring device has the following beneficial effects:

[0013] 1. The copper net support, the copper net clamping plate and the copper net are arranged, the copper net with large area is convenient for continuously contacting the fan blade, the angle of the unmanned aerial vehicle does not need to be adjusted, and the unmanned aerial vehicle does not need to be controlled to be fixed on the fan blade, so that the unmanned aerial vehicle will not cause large extrusion to the fan blade, and when the unmanned aerial vehicle is separated, a large force is not needed to separate the suction cup from the fan blade, and the difficulty of controlling the unmanned aerial vehicle and the requirement for power performance are reduced when the unmanned aerial vehicle measures the resistance of the fan blade.

[0014] 2. The copper net support, the copper net clamping plate and the copper net are arranged, and the unmanned aerial vehicle has a certain protection effect, so that when the unmanned aerial vehicle approaches the fan blade, the blade of the unmanned aerial vehicle can be prevented from colliding with the fan blade, the possibility of damaging the fan blade is reduced when the unmanned aerial vehicle measures the resistance of the fan blade, and the protection capability of the unmanned aerial vehicle is improved.

[0015] 3. The unmanned aerial vehicle connecting plate and the unmanned aerial vehicle are arranged, the risk of climbing and a large amount of manpower and time loss are solved by using the unmanned aerial vehicle measurement mode, manpower is saved, the efficiency of measuring the resistance of the fan blade is improved, and the safety of measurement is ensured.

[0016] 4. The bell-shaped damping platform, the rubber damping ball and the damping spring are arranged, full damping is realized through the upper, middle and lower three-section mode, the damping capability of the unmanned aerial vehicle is improved, and the influence of air flow on the unmanned aerial vehicle during high-altitude flight is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0018] Fig. 1 It is a schematic diagram of the whole utility model;

[0019] Fig. 2 It is a sectional view of the whole utility model;

[0020] Fig. 3 It is a schematic diagram of the local structure of the copper mesh support and the copper mesh clamping plate of the utility model.

[0021] In the drawing: 1, unmanned aerial vehicle connecting plate; 2, connecting rod; 21, connecting upper rod; 22, connecting lower rod; 3, damping assembly; 31, bell-shaped damping table; 32, rubber damping ball; 33, damping spring; 4, copper mesh support; 5, copper mesh clamping plate; 6, sliding rod. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0023] EMBODIMENT

[0024] In order to reduce the difficulty of measuring the resistance of the fan blade using the unmanned aerial vehicle, Figs. 1-3 For an embodiment of the utility model, an unmanned aerial vehicle fan blade conduction resistance measuring equipment is provided, which comprises an unmanned aerial vehicle connecting plate 1, a connecting rod 2 is installed on the top of the unmanned aerial vehicle connecting plate 1, a damping assembly 3 is installed on the connecting rod 2, a threaded groove is formed in the top of the connecting rod 2, a copper mesh support 4 is fixedly connected to the top of the connecting rod 2 through bolts, a threaded hole matched with the bolts is formed in the top of the copper mesh support 4, a copper mesh clamping plate 5 is installed on the top of the copper mesh support 4, the copper mesh clamping plate 5 is two annular plates, a plurality of threaded holes are formed in the top of the annular plate and the copper mesh support 4, and the annular plate and the copper mesh support 4 are fixedly connected through bolts, the unmanned aerial vehicle connecting plate 1 is specially customized and specially matched with DJI M350, when in use, the unmanned aerial vehicle connecting plate 1 is fixed on the top of the unmanned aerial vehicle, two annular plates are used to clamp a layer of copper mesh from both sides, the two annular plates and the copper mesh in the middle are fixed through bolts, part of the bolts enter the threaded groove in the top of the copper mesh support 4, the annular plate and the copper mesh support 4 are fixed, a wire clamp is clamped on the copper mesh, and the wire clamp is connected with the resistance measuring instrument on the ground through a wire.

[0025] The unmanned aerial vehicle drives the copper net to move until the copper net contacts the fan blade. The wire clamp clamped on the copper net will transmit the current of the blade to the resistance measuring instrument through the conductor. The standard value is compared to identify whether it is in the normal range. Since the area of the copper net support 4, the copper net clamp plate 5 and the copper net fixed thereby is large, only the copper net needs to contact the fan blade during use to complete the measurement of the resistance. Therefore, the difficulty of controlling the unmanned aerial vehicle to drive the copper net to contact the fan blade is small. The large area of the copper net facilitates the continuous contact with the fan blade, so it is not necessary to adjust the angle of the unmanned aerial vehicle or control the unmanned aerial vehicle to be fixed on the fan blade. Therefore, it will not cause a large extrusion to the fan blade. When the unmanned aerial vehicle is separated, it does not need a large force to separate the suction cup from the fan blade. The difficulty of controlling the unmanned aerial vehicle to measure the resistance of the fan blade and the requirement of the power performance of the unmanned aerial vehicle are reduced.

[0026] Since the area of the copper net installed on the top of the unmanned aerial vehicle is large, it can cover most of the area of the unmanned aerial vehicle, which has a certain protection effect on the unmanned aerial vehicle. When the unmanned aerial vehicle approaches the fan blade, it can also prevent the blade of the unmanned aerial vehicle from hitting the fan blade. The possibility of damaging the fan blade when the unmanned aerial vehicle measures the resistance of the fan blade is reduced, and the protection capability of the unmanned aerial vehicle is improved.

[0027] Since the unmanned aerial vehicle is used to measure the resistance of the fan blade, compared with the traditional fan blade conduction resistance measurement method which relies on manual climbing and needs to test the connection from the electrode near the end of the blade to the root of the blade, the distance between the test points can be as long as 100 meters. Therefore, special measurement technology needs to be used to eliminate the resistance in the test lead so that it does not become part of the result. After improvement, the use of unmanned aerial vehicle measurement method solves the risk of climbing and a large amount of manpower and time loss, saves manpower, improves the efficiency of measuring the resistance of the fan blade, and also ensures the safety of measurement.

[0028] In order to reduce the influence of air flow on the unmanned aerial vehicle flying at high altitude, refer to Fig. 2The connecting rod 2 comprises a connecting upper rod 21 fixedly connected with the bottom of the copper mesh support 4, a threaded groove is formed in the top of the connecting upper rod 21, the bottom of the connecting upper rod 21 is provided with a connecting lower rod 22 movably extended into the connecting upper rod 21, the top of the connecting lower rod 22 is provided with a longitudinal groove, the connecting upper rod 21 is slidably connected with a sliding rod 6, one end of the sliding rod 6 is movably extended into the longitudinal groove, the damping assembly 3 comprises a bell-shaped damping platform 31, a rubber damping ball 32 and a damping spring 33, the bell-shaped damping platform 31 is installed between the unmanned aerial vehicle connecting plate 1 and the connecting lower rod 22, the rubber damping ball 32 is installed between the connecting upper rod 21 and the connecting lower rod 22, the damping spring 33 is installed on the top of the sliding rod 6, the sliding rod 6 is a T-shaped cross-section round rod, the top of the sliding rod 6 is provided with a threaded groove, one end of the damping spring 33 is movably extended into the threaded groove, the bottom of the bell-shaped damping platform 31 is fixedly connected with the unmanned aerial vehicle connecting plate 1, the opposite sides of the bell-shaped damping platform 31 and the connecting lower rod 22 are provided with threaded grooves, and the bell-shaped damping platform 31 and the connecting lower rod 22 are fixedly connected through bolts, the rubber damping ball 32 is movably extended into the connecting upper rod 21 and the connecting lower rod 22, the sliding rod 6 movably penetrates through the rubber damping ball 32, the connecting lower rod 22 is made of aluminum alloy, the damping structure is fully damped through the upper, middle and lower three-section mode, the damping capacity of the unmanned aerial vehicle is improved, and the influence of air flow on the unmanned aerial vehicle during high-altitude flight can be reduced.

[0029] 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. A device for measuring the conduction resistance of a wind turbine blade from a drone, comprising a drone connection plate (1), characterized in that: The top of the UAV connecting plate (1) is equipped with a connecting rod (2), and a shock-absorbing component (3) is installed on the connecting rod (2). The top of the connecting rod (2) is provided with a threaded groove. The top of the connecting rod (2) is fixedly connected to a copper mesh bracket (4) by bolts. The top of the copper mesh bracket (4) is provided with a threaded hole that matches the bolts. The top of the copper mesh bracket (4) is equipped with a copper mesh clamping plate (5). The copper mesh clamping plate (5) consists of two annular plates. The tops of the annular plates and the copper mesh bracket (4) are provided with multiple threaded holes. The annular plates and the copper mesh bracket (4) are fixedly connected by bolts.

2. The device for measuring the continuity resistance of a UAV wind turbine blade according to claim 1, characterized in that: The connecting rod (2) includes an upper connecting rod (21) that is fixedly connected to the bottom of the copper mesh bracket (4). A threaded groove is opened on the top of the upper connecting rod (21). The bottom of the upper connecting rod (21) is provided with a lower connecting rod (22) that extends movably into its interior. A longitudinal groove is opened on the top of the lower connecting rod (22).

3. The device for measuring the continuity resistance of a UAV wind turbine blade according to claim 2, characterized in that: The connecting rod (21) is internally slidably connected to a sliding rod (6), one end of which extends movably into the longitudinal groove.

4. The device for measuring the continuity resistance of a UAV wind turbine blade according to claim 3, characterized in that: The shock absorption assembly (3) includes a bell-shaped shock absorption platform (31), a rubber shock absorption ball (32), and a shock absorption spring (33). The bell-shaped shock absorption platform (31) is installed between the UAV connecting plate (1) and the connecting lower rod (22). The rubber shock absorption ball (32) is installed between the connecting upper rod (21) and the connecting lower rod (22). The shock absorption spring (33) is installed on the top of the sliding rod (6).

5. The device for measuring the continuity resistance of a UAV wind turbine blade according to claim 4, characterized in that: The sliding rod (6) is a round rod with a T-shaped cross section. A threaded groove is provided on the top of the sliding rod (6), and one end of the shock-absorbing spring (33) extends into the threaded groove.

6. The unmanned aerial vehicle (UAV) wind turbine blade continuity resistance measuring device according to claim 4, characterized in that: The bottom of the bell-shaped shock absorber (31) is fixedly connected to the UAV connecting plate (1). The bell-shaped shock absorber (31) and the connecting rod (22) are both provided with threaded grooves on opposite sides. The bell-shaped shock absorber (31) and the connecting rod (22) are fixedly connected by bolts.

7. The device for measuring the continuity resistance of a UAV wind turbine blade according to claim 4, characterized in that: The two ends of the rubber shock-absorbing ball (32) extend into the interior of the connecting upper rod (21) and the connecting lower rod (22), respectively, and the sliding rod (6) moves through the rubber shock-absorbing ball (32).

Images