Unmanned aerial vehicle for inspecting blades of wind driven generator

Abstract

The utility model discloses an unmanned aerial vehicle for inspecting blades of a wind driven generator, and relates to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle comprises an unmanned aerial vehicle main body and a camera, the unmanned aerial vehicle main body is composed of an unmanned aerial vehicle body, four propeller arms and four propellers, and anti-bird mechanisms are installed at the tops of the propeller arms. A protection mechanism is installed at the bottom of the unmanned aerial vehicle body, the bird prevention mechanism comprises a vertical rod, the vertical rod is inserted into the side, away from a propeller, of the top of a propeller arm, an annular rod is installed above the propeller, and two connecting rods are fixedly connected between the vertical rod and the annular rod; a plurality of spines are fixedly connected to the top of the connecting rod and the top of the annular rod; the anti-bird mechanism is detachably mounted on the propeller arm, so that the propeller can be prevented from being damaged by birds, spikes in the anti-bird mechanism can prick the birds to prevent the birds from being attacked again, meanwhile, buzzing sound emitted by the buzzer is matched to scare away and expel the birds, the unmanned aerial vehicle can be effectively protected, and the overall safety is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially relates to a kind of unmanned plane for inspecting wind turbine blade. BACKGROUND

[0002] Wind turbine is converted into mechanical work for wind energy, mechanical work drives rotor rotation, and ultimately output ac power equipment. Wind turbine generally has wind wheel, generator (including device), direction regulator (tail wing), tower, speed-limiting safety mechanism and energy storage device etc. component, wherein wind wheel contains blade, hub, reinforcing member etc. component. Since wind turbine blade is exposed to wind power, thus needs to be regularly inspected, avoid blade damage unable timely maintenance;

[0003] Through the retrieval, a kind of unmanned plane for inspecting wind turbine blade is disclosed in Chinese patent No. CN214875583U, it is related to inspection equipment technical field, wherein the bottom end both sides of body are fixedly connected with landing gear, the bottom end middle position of body is fixedly connected with camera, and the side end four around positions of body are all fixedly connected with propeller assembly, is equipped with protection assembly, the camera is fixedly connected with protection assembly at the end away from body, and the bottom end of propeller assembly is fixedly connected with bearing assembly;

[0004] The above-mentioned document is mainly carried out by unmanned plane with camera to inspect wind turbine blade, and unmanned plane is sometimes inevitably attacked by flying bird in high altitude, especially propeller part, once propeller is damaged, unmanned plane will crash immediately, and the propeller of unmanned plane in the above-mentioned document has no protection measure, has no bird repelling function, and use safety is poor;

[0005] To solve the above problems, the present application provides an unmanned plane for inspecting wind turbine blade. INVENTION CONTENTS

[0006] The utility model provides a kind of unmanned plane for inspecting wind turbine blade to solve above-mentioned technical problem.

[0007] To solve the above problems, the present application provides an unmanned plane for inspecting wind turbine blade, including unmanned plane main body and camera, the unmanned plane main body is by unmanned plane fuselage, four propeller arms and four propellers, the camera is fixedly connected at the bottom of unmanned plane fuselage, the propeller arm top is equipped with bird prevention mechanism, and the bird prevention mechanism extends to the upper of propeller, the unmanned plane fuselage bottom is equipped with protection mechanism, and the camera is located inside protection mechanism;

[0008] The bird prevention mechanism comprises a vertical rod, the vertical rod is inserted on one side of the top of the propeller arm away from the propeller, an annular rod is installed above the propeller, two connecting rods are fixedly connected between the vertical rod and the annular rod, and a plurality of spikes are fixedly connected to the top of the connecting rod and the annular rod.

[0009] Preferably, a buzzer is fixedly installed on the top of the unmanned aerial vehicle body.

[0010] Preferably, a reinforcing plate is fixedly connected to the outer end of the vertical rod, bolts are penetrated through the top of the reinforcing plate, and the propeller arm and the reinforcing plate are fixedly connected through the bolts.

[0011] Preferably, the protection mechanism comprises an annular frame, the annular frame is fixedly connected to the bottom of the unmanned aerial vehicle body, a hemispherical cover is fixedly connected to the inner side of the annular frame, the camera is located in the hemispherical cover, an annular groove is formed in the bottom of the inner side of the annular frame, an arc-shaped plate is movably connected to the inner side of the annular groove through a rotating shaft, a sponge strip is fixedly connected to the inner side of the arc-shaped plate, the inner side of the sponge strip is in contact with the outer wall of the hemispherical cover, an electric motor is fixedly connected to one side of the inner side of the hemispherical cover, the output shaft of the electric motor is penetrated through the hemispherical cover and extends into the annular groove, and the output shaft of the electric motor is fixedly connected to one end of the inner side of the arc-shaped plate.

[0012] Preferably, two landing gears are fixedly connected to the bottom of the unmanned aerial vehicle body, and the protection mechanism is located between the two landing gears.

[0013] Compared with the related art, the unmanned aerial vehicle for inspecting wind turbine blades has the following beneficial effects:

[0014] 1. The bird prevention mechanism is detachably installed on the propeller arm, the bird prevention mechanism can protect the propeller from being damaged by flying birds without affecting the lifting force of the propeller, the spikes in the bird prevention mechanism can hurt the flying birds and make them not dare to attack, the buzzing sound emitted by the buzzer can scare away the flying birds, the unmanned aerial vehicle can be effectively protected, and the overall safety is high.

[0015] 2. The protection mechanism is installed below the unmanned aerial vehicle body to cover the camera, dust or water mist is prevented from directly adhering to the camera, the dust or water mist adhering to the hemispherical cover can be wiped off by the sponge strip in the arc-shaped plate through the reciprocating rotation of the arc-shaped plate on the outer surface of the hemispherical cover, so that the camera can clearly shoot the picture of the wind turbine blade through the hemispherical cover. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The first perspective view of the overall structure of the unmanned aerial vehicle for inspecting wind turbine blades is shown in the figure.

[0017] Figure 2 A second visual angle overall structure schematic view of the unmanned aerial vehicle for patrolling and inspecting wind turbine blades is provided in the utility model;

[0018] Figure 3 A bird prevention mechanism structure schematic view of the unmanned aerial vehicle for patrolling and inspecting wind turbine blades is provided in the utility model;

[0019] Figure 4 A protection mechanism structure schematic view of the unmanned aerial vehicle for patrolling and inspecting wind turbine blades is provided in the utility model;

[0020] Figure 5 A ring frame structure schematic view of the unmanned aerial vehicle for patrolling and inspecting wind turbine blades is provided in the utility model.

[0021] The figure mark: 1, unmanned aerial vehicle fuselage, 2, propeller arm, 3, propeller, 4, landing gear, 5, camera, 6, half dome, 7, ring frame, 8, ring groove, 9, arc plate, 10, sponge strip, 11, motor, 12, vertical rod, 13, reinforcing plate, 14, bolt, 15, connecting rod, 16, ring rod, 17, thorn, 18, buzzer. DETAILED DESCRIPTION

[0022] Example one, by Figures 1-5 The utility model discloses a unmanned aerial vehicle main part and camera 5, the unmanned aerial vehicle main part is by unmanned aerial vehicle fuselage 1, four propeller arms 2 and four propellers 3, the unmanned aerial vehicle fuselage 1 bottom fixedly connected with two landing gears 4, the protection mechanism is located between two landing gears 4, the camera 5 is fixedly connected at unmanned aerial vehicle fuselage 1 bottom, the propeller arm 2 top is equipped with the bird prevention mechanism, and the bird prevention mechanism extends to the upper side of propeller 3, the unmanned aerial vehicle fuselage 1 bottom is equipped with the protection mechanism, and the camera 5 is located in the protection mechanism interior;

[0023] The unmanned aerial vehicle main part that unmanned aerial vehicle fuselage 1, propeller arm 2 and propeller 3 constitute is conventional unmanned aerial vehicle, and its specific structure and operating principle are prior art, thus, the structure of unmanned aerial vehicle and composition are not too much repeated here.

[0024] The bird prevention mechanism includes vertical rod 12, the vertical rod 12 is inserted in the top of propeller arm 2 and is away from the side of propeller 3, the upper side of propeller 3 is equipped with ring rod 16, and the vertical rod 12 and ring rod 16 are fixedly connected with two connecting rods 15 between, the top of connecting rod 15 and ring rod 16 is fixedly connected with a plurality of thorns 17.

[0025] The vertical rod 12 in the bird prevention mechanism does not affect the rotation of the propeller 3 on the propeller arm 2, and the annular rod 16 is located above the propeller 3 and also does not affect the rotation of the propeller 3, and the overall structure of the protection mechanism is simple, and does not affect the air flow when the propeller 3 rotates to provide lift for the unmanned aerial vehicle. The protection mechanism can protect the propeller 3 below, and when a flying bird attacks, it cannot directly contact the propeller 3 and will only be removed from the bird prevention mechanism, thereby effectively avoiding damage to the propeller 3 caused by flying bird attacks, resulting in a crash. The spikes on the connecting rod 15 and the annular rod 16 can sting the flying bird when it tries to attack and contact the bird prevention mechanism, so that it will not dare to attack again.

[0026] The buzzer 18 is fixedly installed on the top of the unmanned aerial vehicle body 1. In addition to passive defense against flying bird attacks, the buzzer 18 can also actively drive away flying birds by emitting sound, and the bird prevention and driving effect is better.

[0027] The outer end of the vertical rod 12 is fixedly connected with a reinforcing plate 13, the top of the reinforcing plate 13 penetrates through a bolt 14, and the propeller arm 2 and the reinforcing plate 13 are fixedly connected through the bolt 14. After the vertical rod 12 in the protection mechanism is inserted on the propeller arm 2, the reinforcing plate 13 on the vertical rod 12 is fastened on the propeller arm 2 through the bolt 14, so as to improve the firmness of the protection mechanism on the propeller arm 2. At the same time, the vertical rod 12 and the bolt 14 realize two-point connection on the propeller arm 2, so that the angle of the protection mechanism on the propeller arm 2 is fixed, and the problem that the protection mechanism deviates after being attacked by a flying bird and cannot be shielded above the propeller 3 does not occur.

[0028] In example two, on the basis of example one, the protection mechanism comprises an annular frame 7, the annular frame 7 is fixedly connected to the bottom of the unmanned aerial vehicle body 1, the inner side of the annular frame 7 is fixedly connected with a hemispherical cover 6, the camera 5 is located inside the hemispherical cover 6, the inner bottom of the annular frame 7 is provided with an annular groove 8, the annular groove 8 is movably connected with an arc-shaped plate 9 through a rotating shaft, the inner side of the arc-shaped plate 9 is fixedly connected with a sponge strip 10, and the inner side of the sponge strip 10 is in contact with the outer wall of the hemispherical cover 6. One side of the hemispherical cover 6 inside is fixedly connected with a motor 11, the output shaft of the motor 11 penetrates through the hemispherical cover 6 and extends into the annular groove 8, and the output shaft of the motor 11 is fixedly connected with one end of the inner side of the arc-shaped plate 9.

[0029] When the unmanned aerial vehicle with the camera 5 flies to high altitude to inspect the wind turbine blades, it will inevitably encounter some special circumstances, such as dust adhering to the camera 5, and even water mist adhering to the camera 5, which greatly affects the clarity of the camera 5 shooting picture. A hemispherical cover 6 is further provided outside the camera 5, and dust and water mist can only adhere to the outer surface of the hemispherical cover 6. At the same time, the arc-shaped plate 9 is driven to reciprocate on the outer surface of the hemispherical cover 6 by the motor 11, and the sponge strip 10 inside the arc-shaped plate 9 can wipe off the water mist and other attachments on the hemispherical cover 6, so as to improve the clarity of the camera 5 shooting the wind turbine blades through the hemispherical cover 6. The arc-shaped plate 9 is stored in the annular groove 8 when not in use, and does not block the shooting lens of the camera 5.

[0030] Working principle:

[0031] The unmanned aerial vehicle body with the camera 5 flies through remote control, and the wind turbine blades can be shot and inspected through the camera 5. The anti-bird mechanism is installed on the propeller arm 2 of the unmanned aerial vehicle body. When the unmanned aerial vehicle body is attacked by flying birds in the air, the anti-bird mechanism can be blocked above the propeller 3, and the connecting rod 15 and the annular rod 16 in the anti-bird mechanism are connected with the sharp thorn 17. Therefore, when the flying birds contact the anti-bird mechanism, they will be pained by the sharp thorn 17 and be afraid of it, so they will not dare to attack the unmanned aerial vehicle body again. At the same time, the sharp sound played by the buzzer 18 can also scare away the flying birds to drive the birds away.

[0032] When the unmanned aerial vehicle body flies to high altitude, the camera 5 at the bottom of the unmanned aerial vehicle body 1 is covered inside the hemispherical cover 6 in the protection mechanism. If there is dust or water mist, especially water mist, the water mist will only adhere to the hemispherical cover 6 and cannot adhere to the camera 5. When the water mist adhering to the hemispherical cover 6 affects the shooting clarity of the camera 5, the arc-shaped plate 9 can be driven by the motor 11 to scrape back and forth along the outer surface of the hemispherical cover 6. The sponge strip 10 inside the arc-shaped plate 9 can wipe off the water mist or dust adhering to the outer surface of the hemispherical cover 6, so that the camera 5 can shoot the picture of the wind turbine blades more clearly through the hemispherical cover 6.

Claims

1. A drone for inspecting wind turbine blades, comprising a drone main body and a camera (5), the drone main body is composed of a drone fuselage (1), four propeller arms (2) and four propellers (3), the camera (5) is fixedly connected at the bottom of the drone fuselage (1), characterized in that: The propeller arm (2) top is provided with a bird prevention mechanism, which extends above the propeller (3), the bottom of the unmanned aerial vehicle body (1) is provided with a protection mechanism, and the camera (5) is located in the protection mechanism. The bird prevention mechanism comprises a vertical rod (12), the vertical rod (12) is inserted into the top of the propeller arm (2) away from the side of the propeller (3), the propeller (3) is provided with an annular rod (16) above, and the vertical rod (12) and the annular rod (16) are fixedly connected with two connecting rods (15), and the top of the connecting rod (15) and the annular rod (16) is fixedly connected with a plurality of sharp spikes (17).

2. A drone for inspecting a wind turbine blade according to claim 1, wherein, The top of the unmanned aerial vehicle body (1) is fixedly provided with a buzzer (18).

3. A drone for inspecting a wind turbine blade according to claim 1, wherein, The outer end of the vertical rod (12) is fixedly connected with a reinforcing plate (13), the top of the reinforcing plate (13) penetrates through a bolt (14), and the propeller arm (2) and the reinforcing plate (13) are fixedly connected through the bolt (14).

4. A drone for inspecting a wind turbine blade according to claim 1, wherein, The protection mechanism comprises an annular frame (7), the annular frame (7) is fixedly connected to the bottom of the unmanned aerial vehicle body (1), the inner side of the annular frame (7) is fixedly connected with a hemispherical cover (6), the camera (5) is located in the hemispherical cover (6), the inner side of the annular frame (7) is provided with an annular groove (8), the inner side of the annular groove (8) is movably connected with an arc plate (9) through a rotating shaft, the inner side of the arc plate (9) is fixedly connected with a sponge strip (10), and the inner side of the sponge strip (10) is in contact with the outer wall of the hemispherical cover (6), one side of the inner side of the hemispherical cover (6) is fixedly connected with a motor (11), the output shaft of the motor (11) penetrates through the hemispherical cover (6) and extends into the annular groove (8), and the output shaft of the motor (11) is fixedly connected with one end of the inner side of the arc plate (9).

5. A drone for inspecting a wind turbine blade according to claim 1, wherein, The bottom of the unmanned aerial vehicle body (1) is fixedly connected with two landing gears (4), and the protection mechanism is located between the two landing gears (4).

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