High-voltage power grid inspection unmanned aerial vehicle and method

Abstract

The invention relates to the technical field of high-voltage power grid inspection equipment, in particular to a high-voltage power grid inspection unmanned aerial vehicle and method. The unmanned aerial vehicle body comprises a main machine, and a power unit used for flying is arranged at the main machine. An undercarriage is arranged below the main machine, and a deicing mechanism is arranged at the undercarriage; the deicing mechanism comprises a mounting frame used for being assembled with the undercarriage. An ice shaving assembly used for cutting an ice layer along the outer wall of the cable is arranged on the mounting frame. By means of the ice shaving assembly, when the unmanned aerial vehicle body flies along the cable of the high-voltage power grid, the ice shaving assembly can scrape ice blocks on the surface of the cable along the cable, and workers can conduct deicing work on the cable without working aloft.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-voltage power grid inspection equipment, in particular to a high-voltage power grid inspection unmanned aerial vehicle and method. BACKGROUND

[0002] High voltage generally refers to 35-220kV voltage, and the high-voltage power grid has the characteristics of long distance, large capacity, low loss and less land occupation.

[0003] The terrain in China is relatively complex, with more hills and less plains, and the weather conditions are complex and changeable. The high-voltage power grid is usually set in various terrains, and the ice on the high-voltage power grid will affect power transmission. It is troublesome and dangerous for artificial to climb the power grid and walk to remove ice in various terrains. SUMMARY

[0004] The present application provides a high-voltage power grid inspection unmanned aerial vehicle and method, which can overcome some or some defects of the prior art.

[0005] According to the high-voltage power grid inspection unmanned aerial vehicle of the present application, the unmanned aerial vehicle body includes a main machine, and a power unit for flying is arranged at the main machine; A landing gear is arranged below the main machine, and a deicing mechanism is arranged at the landing gear; the deicing mechanism includes a mounting bracket for assembling with the landing gear; an ice planing assembly for cutting ice layer along the outer wall of the cable is arranged at the mounting bracket.

[0006] Through the ice planing assembly of the present application, when the unmanned aerial vehicle body flies along the cable of the high-voltage power grid, the ice planing assembly can scrape the ice on the surface of the cable along the cable, so that artificial can remove ice on the cable without high-altitude operation.

[0007] Preferably, the mounting bracket includes an inverted U-shaped support; mounting plates are arranged at both sides of the support; the landing gear includes a trapezoidal support rod; a horizontal crossbar is arranged at the support rod; a first mounting hole is arranged at the crossbar, and the mounting plate is connected with the first mounting hole through a fastener.

[0008] In the present application, the deicing mechanism can be detachably connected with the landing gear through the arrangement of the mounting bracket and the first mounting hole, so that whether to install can be selected according to the deicing requirement.

[0009] Preferably, the ice planing assembly includes a moving seat mounted on both sides of the support; a horizontal bottom plate is arranged at the bottom of the support; the moving seat is in sliding cooperation with the bottom plate and is provided with a screw rod and a positioning bolt for positioning; first openings are arranged at both sides of the support for the moving seat to extend into the inside; a rotatable friction roller is arranged at the moving seat, and a second motor is arranged for driving the friction roller to rotate; and the friction roller is in the shape of a horn with thick upper part and thin lower part.

[0010] In the present application, the movable and horn-shaped friction roller is arranged, so that the spacing of the friction roller can be adjusted according to the thickness of the high-voltage power grid cable, so that the deicing mechanism can adapt to different types of cables; and the overall diameter of the cable will increase when it is wrapped in ice, and the overall diameter will gradually decrease after the ice layer is cut, so that the horn-shaped friction roller with the upper thick and lower thin structure can still contact the ice layer or the cable after the overall diameter decreases.

[0011] Preferably, a limiting assembly is arranged above the moving seat; the limiting assembly comprises a limiting plate obliquely arranged at the upper end of the moving seat and extending into the inner side of the support, and the limiting plate is provided with a roller for walking on the surface of the cable.

[0012] In the present application, the arrangement of the limiting assembly allows the roller to walk on the surface of the ice layer, thereby improving the stability of the unmanned aerial vehicle body during deicing through the friction of the roller.

[0013] Preferably, a guide assembly is arranged at the mounting bracket; the guide assembly comprises two first guide plates arranged symmetrically and in a spreader shape; the upper end of the first guide plate is provided with a first guide strip; the bottom of the support is provided with a first guide rail for sliding the first guide strip; the outer side of the first guide plate is provided with a reinforcing plate, and the reinforcing plate is provided with a second guide strip; the bottom plate is provided with a second guide rail for sliding the second guide strip; the second guide rail is provided with a fastening bolt for abutting against the second guide strip; and the first guide strip is provided with a second guide plate extending to the bottom of the friction roller.

[0014] In the present application, the arrangement of the guide assembly allows the two first guide plates to have a preliminary guiding effect when the unmanned aerial vehicle body is located above the cable and is ready to descend to place the cable at the ice planing assembly; when the cable moves between the two guide plates, the two second guide plates can accurately guide the cable to the two friction rollers; and the reinforcing plate can improve the strength; thereby reducing the operation difficulty during deicing through the guide assembly.

[0015] Preferably, the power unit comprises a rotor and a first motor for driving the rotor to rotate; the first motor is connected to the main machine of the unmanned aerial vehicle body through a connecting rod; and the first motor is provided with a protection mechanism; The protection mechanism comprises a protective cover for detachable connection with the first motor; the protective cover is circular and is provided with a second opening; and the second opening is arranged towards the main machine.

[0016] In the present application, the arrangement of the protection mechanism allows the important power unit to be protected, the protective cover of the protection mechanism can surround the periphery of the rotor, and the second opening can reduce the excess weight of the protective cover, avoiding the influence of the over-heavy protection mechanism on the work of the power unit.

[0017] Preferably, the side wall of the protective cover is provided with a first notch penetratingly arranged; the first notch is arc-shaped and concentrically arranged with the protective cover.

[0018] In the present application, the first notch is arranged to further reduce the weight of the protective cover and reduce the resistance of the protective cover when flying against the wind, thereby further ensuring the stability of the power unit.

[0019] Preferably, the lower end surface of the protective cover is provided with a plurality of connecting plates; the plurality of connecting plates are commonly connected with a vertically arranged mounting cover; the upper end of the mounting cover is open and penetratingly arranged with the first motor; the lower end of the mounting cover is provided with a through hole; the bottom of the shell of the first motor is provided with a second mounting hole, and the mounting cover is provided with a mounting bolt for penetratingly threaded with the second mounting hole.

[0020] In the present application, the first motor is arranged in the penetrating connecting rod, and the mounting cover is arranged to move up and down, thereby avoiding the entire protective mechanism from rotating along the first motor.

[0021] Preferably, the connecting plate is provided with a second notch arranged along the length direction of the connecting plate.

[0022] In the present application, the second notch is arranged to reduce the weight of the connecting plate, thereby further reducing the weight of the entire protective mechanism to ensure the stability of the power unit.

[0023] A high-voltage power grid inspection method is realized by the high-voltage power grid inspection unmanned aerial vehicle described in any of the above. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic view of the unmanned aerial vehicle body in embodiment 1; Figure 2 It is a schematic view of the deicing mechanism and the protective mechanism after being removed in embodiment 1; Figure 3 It is a schematic view of the deicing mechanism in embodiment 1; Figure 4 It is a schematic view of the deicing mechanism in embodiment 1; Figure 5 It is a schematic view of the guide assembly and the mounting bracket after being removed in embodiment 1; Figure 6 It is a schematic view of the ice planing assembly in embodiment 1; Figure 7 It is a schematic view of the protective mechanism and the power unit after being removed in embodiment 1. DETAILED DESCRIPTION

[0025] To further understand the content of this invention, the invention will be described in detail with reference to the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0026] Example 1 like Figures 1-7 As shown, this embodiment provides a high-voltage power grid inspection drone, whose drone body 100 includes a host 110, and the host 110 is provided with a power unit 112 for flight. The main unit 110 is provided with a landing gear 111 below it, and a de-icing mechanism 120 is provided at the landing gear 111. The de-icing mechanism 120 includes a mounting bracket 321 for assembly with the landing gear 111. The mounting bracket 321 is provided with an ice-shaving assembly 322 for cutting ice along the outer wall of the cable.

[0027] With the ice-shaving component 322 in this embodiment, when the drone body 100 flies along the cable of the high-voltage power grid, the ice-shaving component 322 can scrape off the ice on the surface of the cable, so that the cable can be de-iced by man without high-altitude operation. Among them, the drone host 110 and the power unit 112 are common drone structures in the prior art, which include a series of structures such as the flight control system to control the flight of the drone.

[0028] In this embodiment, the mounting frame 321 includes an inverted U-shaped bracket 5210; mounting plates 5213 are provided on both sides of the bracket 5210; the landing gear 111 includes a trapezoidal support rod 2110; a horizontally arranged crossbar 2111 is provided at the support rod 2110; a first mounting hole 2112 is provided at the crossbar 2111, and the mounting plate 5213 is connected to the first mounting hole 2112 by fasteners.

[0029] The mounting bracket 321 and the first mounting hole 2112 in this embodiment enable the de-icing mechanism 120 to be detachably connected to the landing gear 111, so that installation can be selected according to de-icing requirements.

[0030] In this embodiment, the shaved ice assembly 322 includes movable seats 6220 installed on both sides of the bracket 5210; the bottom of the bracket 5210 is provided with a horizontally arranged base plate 5211; the movable seats 6220 are slidably engaged with the base plate 5211 and are provided with a screw 6223 and a positioning bolt 6224 for positioning; the bracket 5210 is provided with a first opening 5212 on both sides for the movable seats 6220 to extend into the inside; the movable seats 6220 are provided with a rotatable friction roller 6222 and a second motor 6221 for driving the friction roller 6222 to rotate; the friction roller 6222 is in the shape of a trumpet that is thicker at the top and thinner at the bottom.

[0031] The movable and horn-shaped friction roller 6222 in the embodiment can adjust the spacing of the friction roller 6222 according to the thickness of the high-voltage power cable, so that the deicing mechanism 120 can adapt to different types of cables; and the overall diameter of the cable will increase when it is wrapped in ice, and the overall diameter will gradually decrease after the ice layer is cut, so that the horn-shaped friction roller 6222 can still contact the ice layer or the cable after the overall diameter decreases. The friction roller 6222 is composed of a horn-shaped roller and an outer blade, and the blade cuts the ice layer on the surface of the cable.

[0032] In the embodiment, the upper part of the moving seat 6220 is provided with a limiting assembly 323; the limiting assembly 323 includes a limiting plate 6230 which is obliquely arranged at the upper end of the moving seat 6220 and extends into the inner side of the support 5210, and the limiting plate 6230 is provided with a roller 6231 for walking on the surface of the cable.

[0033] Through the limiting assembly 323 in the embodiment, the roller 6231 can walk on the surface of the ice layer, so as to improve the stability of the unmanned aerial vehicle body 100 during deicing through the friction force of the roller 6231.

[0034] In the embodiment, the mounting frame 321 is provided with a guide assembly 324; the guide assembly 324 includes two first guide plates 5240 which are symmetrically arranged and in an eight-shaped form; the upper end of the first guide plate 5240 is provided with a first guide strip 5242; the bottom of the support 5210 is provided with a first guide rail 5245 for sliding of the first guide strip 5242; the outer side of the first guide plate 5240 is provided with a reinforcing plate 5243, and the reinforcing plate 5243 is provided with a second guide strip 5244; the bottom plate 5211 is provided with a second guide rail 5247 for sliding of the second guide strip 5244; the second guide rail 5247 is provided with a fastening bolt 5246 for abutting against the second guide strip 5244; and the first guide strip 5242 is provided with a second guide plate 5241 extending to the bottom of the friction roller 6222.

[0035] Through the guide assembly 324 in the embodiment, the two first guide plates 5240 can have a preliminary guiding effect when the unmanned aerial vehicle body 100 is located above the cable and is ready to descend to place the cable at the ice planing assembly 322; when the cable moves between the two guide plates, the two second guide plates 5241 can accurately guide the cable to the two friction rollers 6222; and the reinforcing plate 5243 can improve the strength; so that the operation difficulty during deicing can be reduced through the guide assembly 324.

[0036] In the embodiment, the power unit 112 includes a rotor 7121 and a first motor 7120 for driving the rotor 7121 to rotate; the first motor 7120 is connected with the main machine 110 of the unmanned aerial vehicle body 100 through a connecting rod 7122; the first motor 7120 is provided with a protection mechanism 130; the protection mechanism 130 is used for surrounding the rotor 7121 to block the contact between the rotor 7121 and the high-voltage power grid. The protection mechanism 130 includes a protective cover 731 used for detachable connection with the first motor 7120; the protective cover 731 is circular and is provided with a second opening 7311; the second opening 7311 is arranged towards the main machine 110.

[0037] Through the arrangement of the protection mechanism 130 in the embodiment, the important power unit 112 can be protected, the protective cover 731 of the protection mechanism 130 can surround the periphery of the rotor 7121, and the second opening 7311 can reduce the redundant weight of the protective cover 731, so as to avoid the influence of the over-heavy protection mechanism 130 on the work of the power unit 112.

[0038] In the embodiment, the sidewall of the protective cover 731 is provided with a first notch 7310 arranged through; the first notch 7310 is arc-shaped and is arranged concentrically with the protective cover 731.

[0039] Through the arrangement of the first notch 7310 in the embodiment, the weight of the protective cover 731 can be further reduced, and the resistance of the protective cover 731 when flying against the wind is reduced, so as to further ensure the stable work of the power unit 112.

[0040] In the embodiment, the lower end surface of the protective cover 731 is provided with a plurality of connecting plates 732; the plurality of connecting plates 732 are commonly connected with a vertically arranged mounting cover 733; the upper end of the mounting cover 733 is open and is sleeved on the first motor 7120 through the connecting rod 7122; the lower end of the mounting cover 733 is provided with a through hole 7330; the bottom of the shell of the first motor 7120 is provided with a second mounting hole 7123, and the mounting cover 733 is provided with a mounting bolt 734 used for threadedly cooperating with the through hole 7330 and the second mounting hole 7123.

[0041] Through the arrangement of the mounting cover 733 in the embodiment, the mounting cover 733 and the protective cover 731 can only move up and down, so as to avoid the whole protection mechanism 130 rotating along the first motor 7120.

[0042] In the embodiment, the connecting plate 732 is provided with a second notch 7320, and the second notch 7320 is arranged along the length direction of the connecting plate 732.

[0043] Through the arrangement of the second gap 7320 in the embodiment, the weight of the connecting plate 732 can be reduced, so as to further reduce the weight of the entire protection mechanism 130 and ensure the stable operation of the power unit 112.

[0044] A high-voltage power grid inspection method is realized by the high-voltage power grid inspection unmanned aerial vehicle described in any of the above, and includes the following steps: S1, adjust the spacing of the two friction rollers of the ice shaving assembly to adapt to the diameter of the cable; S2, control the unmanned aerial vehicle body to fly above the cable that needs to be deiced; S3, move the unmanned aerial vehicle body downward, and guide the cable between the two friction rollers under the guidance of the guide assembly; S4, start the second motor to remove the ice layer of the cable through the friction roller, and move the unmanned aerial vehicle body while removing the ice layer until the ice layer on the surface of the cable is completely removed.

[0045] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of one or more embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0046] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive, and the embodiments shown are only part of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by it, without departing from the purpose of the present application, they can not design similar structural modes and embodiments without creativity, which should belong to the protection scope of the present application.

Claims

1. A high-voltage power grid inspection drone, characterized in that: It includes a drone body (100), which includes a host (110) and a power unit (112) for flight. The main unit (110) is provided with a landing gear (111) below it, and a de-icing mechanism (120) is provided at the landing gear (111); the de-icing mechanism (120) includes a mounting bracket (321) for assembly with the landing gear (111); the mounting bracket (321) is provided with an ice-shaving assembly (322) for cutting ice along the outer wall of the cable.

2. The high-voltage power grid inspection drone according to claim 1, characterized in that: The mounting bracket (321) includes an inverted U-shaped support (5210); mounting plates (5213) are provided on both sides of the support (5210); the landing gear (111) includes a trapezoidal support rod (2110); a horizontally arranged crossbar (2111) is provided at the support rod (2110); a first mounting hole (2112) is provided at the crossbar (2111), and the mounting plate (5213) is connected to the first mounting hole (2112) by fasteners.

3. The high-voltage power grid inspection drone according to claim 2, characterized in that: The shaved ice assembly (322) includes movable seats (6220) mounted on both sides of the bracket (5210); the bottom of the bracket (5210) is provided with a horizontally arranged base plate (5211); the movable seats (6220) are slidably engaged with the base plate (5211) and are provided with a screw (6223) and a positioning bolt (6224) for positioning; the bracket (5210) is provided with a first opening (5212) on both sides for the movable seats (6220) to extend into the inside; the movable seats (6220) are provided with a rotatable friction roller (6222) and a second motor (6221) for driving the friction roller (6222) to rotate; the friction roller (6222) is in the shape of a trumpet that is thicker at the top and thinner at the bottom.

4. The high-voltage power grid inspection drone according to claim 3, characterized in that: A limiting component (323) is provided above the movable base (6220); the limiting component (323) includes a limiting plate (6230) that is inclinedly disposed on the upper end of the movable base (6220) and extends into the inner side of the bracket (5210), and a roller (6231) for walking on the cable surface is provided at the limiting plate (6230).

5. A high-voltage power grid inspection drone according to claim 3, characterized in that: A guide assembly (324) is provided at the mounting bracket (321); the guide assembly (324) includes two symmetrically arranged first guide plates (5240) in a figure-eight shape; a first guide bar (5242) is provided at the upper end of the first guide plate (5240); a first guide rail (5245) for sliding the first guide bar (5242) is provided at the bottom of the bracket (5210); a reinforcing plate (5243) is provided on the outer side of the first guide plate (5240), and a second guide bar (5244) is provided at the reinforcing plate (5243); a second guide rail (5247) for sliding the second guide bar (5244) is provided at the bottom plate (5211); a fastening bolt (5246) for abutting the second guide bar (5244) is provided at the second guide rail (5247); and a second guide plate (5241) for extending to the bottom of the friction roller (6222) is provided at the first guide bar (5242).

6. The high-voltage power grid inspection drone according to claim 1, characterized in that: The power unit (112) includes a rotor (7121) and a first motor (7120) for driving the rotor (7121) to rotate; the first motor (7120) is connected to the host (110) of the UAV body (100) via a connecting rod (7122); a protective mechanism (130) is provided at the first motor (7120); the protective mechanism (130) is used to surround the rotor (7121) to prevent the rotor (7121) from contacting the high-voltage power grid; The protective mechanism (130) includes a protective cover (731) for detachable connection with the first motor (7120); the protective cover (731) is circular and has a second opening (7311); the second opening (7311) is oriented toward the main unit (110).

7. A high-voltage power grid inspection drone according to claim 6, characterized in that: The protective cover (731) has a through-hole (7310) on its side wall; the first notch (7310) is arc-shaped and concentrically arranged with the protective cover (731).

8. A high-voltage power grid inspection drone according to claim 6, characterized in that: The lower end face of the protective cover (731) is provided with multiple connecting plates (732); the multiple connecting plates (732) are connected together to a vertically arranged mounting cover (733); the upper end of the mounting cover (733) is open and a connecting rod (7122) is passed through and sleeved on the first motor (7120); a through hole (7330) is provided at the lower end of the mounting cover (733); a second mounting hole (7123) is provided at the bottom of the housing of the first motor (7120), and a mounting bolt (734) is provided at the mounting cover (733) for threaded engagement between the through hole (7330) and the second mounting hole (7123).

9. A high-voltage power grid inspection drone according to claim 8, characterized in that: A second notch (7320) is provided at the connecting plate (732), and the second notch (7320) is provided along the length direction of the connecting plate (732).

10. A high-voltage power grid inspection method, implemented by a high-voltage power grid inspection drone as described in any one of claims 1-9.

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