Fan blade inspection device based on unmanned aerial vehicle

Abstract

The utility model discloses a draught fan blade inspection device based on an unmanned aerial vehicle, and particularly relates to the technical field of detection, which comprises a main engine, a plurality of first connecting rods arranged in a circumferential array are arranged on the outer side of the main engine, propeller parts are arranged on the first connecting rods, and an annular protection ring is connected among the outer ends of the plurality of first connecting rods. A first side ring and a second side ring which are in a circular ring shape are installed at the top of the protection ring, a third side ring and a fourth side ring which are in a circular ring shape are installed at the bottom of the protection ring, and a driving box and a balance weight which are symmetrically arranged are installed on the protection ring. According to the unmanned aerial vehicle protection device, the protection ring is firstly installed for protection from the side face of the unmanned aerial vehicle in the horizontal direction, the side rings capable of being overturned to take off and land are installed on the protection ring for cooperation, a three-dimensional protection space can be formed on the outer side of the unmanned aerial vehicle main body after the side rings are lifted, and comprehensive protection and avoiding are achieved; and a good protection effect is provided when the equipment falls off.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detection, more specifically, the utility model relates to a fan blade inspection device based on unmanned aerial vehicle. BACKGROUND

[0002] Wind power generation is very widely applied at present, is more environmental protection, mainly uses fan, the fan will need to carry out blade detection frequently when using, to ensure the normal use of fan blade. The detection mode is mainly through unmanned aerial vehicle, unmanned aerial vehicle drives the camera to fly to the fan blade vicinity, then, carries out the camera, takes the photograph through the camera to carry out the inspection to the defect condition of blade.

[0003] However, if the staff is inattentive and misoperates when the unmanned aerial vehicle is used, the propeller on the unmanned aerial vehicle can be damaged by colliding with the fan blade, which affects the normal use of the unmanned aerial vehicle, therefore, it is necessary to design a device capable of protecting the propeller on the unmanned aerial vehicle to solve the above problems. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a fan blade inspection device based on unmanned aerial vehicle, including host computer, install a plurality of first connecting rods in the circumferential array on the outside of host computer, install the propeller piece on the first connecting rod, connect the protective ring of circular ring between the outer end of a plurality of first connecting rods, install the first side ring and the second side ring of circular ring on the top of protective ring, install the third side ring and the fourth side ring of circular ring on the bottom of protective ring, install the driving box and the counterweight of symmetrical setting on the protective ring, the first side ring, the second side ring, the third side ring and the fourth side ring one end extend to the driving box, and the other end extends to the counterweight, install the coupling on the protective ring through the coupling and install the coupling on the both ends of the first side ring, the second side ring, the third side ring and the fourth side ring.

[0005] In a preferred embodiment, the first side ring and the second side ring are symmetrically arranged on the top of the protective ring, the third side ring and the fourth side ring are symmetrically arranged on the bottom of the protective ring, and the radii of the first side ring, the second side ring, the third side ring and the fourth side ring are the same and coincide with the protective ring.

[0006] In a preferred embodiment, the coupling includes a support rod fixed on the inner and outer sidewalls of the protective ring, a second connecting rod extending to the top and bottom of the protective ring is installed on the outer end of the support rod, a sleeve is installed on both ends of the second connecting rod, and a rotating connecting shaft is inserted into the sleeve.

[0007] In a preferred embodiment, the connecting shaft sequentially penetrates both ends of the first side ring, the second side ring, the third side ring and the fourth side ring.

[0008] In a preferred embodiment, the coupling member located at one side of the driving box penetrates into the interior of the driving box, the shaft connecting end of the first side ring and the second side ring located in the interior of the driving box is respectively provided with a first gear, the two first gears are located in the same plane, the shaft connecting end of the third side ring and the fourth side ring located in the interior of the driving box is respectively provided with a second gear, the two second gears are located in the same plane, and a gap A is left between the plane where the first gears are located and the plane where the second gears are located.

[0009] In a preferred embodiment, a servo motor is installed at the bottom of the driving box, the output shaft of the servo motor is connected with a second rotating shaft extending into the interior of the driving box, the second rotating shaft extends from the gap A to the top of the driving box, and two symmetrical threads are formed in the outer wall of the second rotating shaft.

[0010] Two screw pipes are sleeved on the outer portion of the second rotating shaft, and the two screw pipes are respectively matched with the two threads.

[0011] In a preferred embodiment, a first adjusting plate is arranged between the two first gears, a second adjusting plate is arranged between the two second gears, teeth are arranged on the two sides of the first adjusting plate and the second adjusting plate, the first adjusting plate is meshed with the first gears on the two sides through the teeth, the second adjusting plate is meshed with the second gears on the two sides through the teeth, and the two screw pipes are respectively fixed on the outer walls of the first adjusting plate and the second adjusting plate.

[0012] In a preferred embodiment, a first limiting strip is attached to each of the front and rear sides of the first adjusting plate, and a second limiting strip is attached to each of the front and rear sides of the second adjusting plate.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] The utility model discloses a protection ring is installed in horizontal direction from the side of unmanned aerial vehicle to carry out the protection, then the multiple side rings of flip take -off of installing on the protection ring are cooperated, can form a three -dimensional protection space on the outside of unmanned aerial vehicle mainframe after the side ring rises, realize all -sided protection and avoidance, and provide good protection effect when the equipment falls. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the utility model after the side ring rises;

[0017] Figure 3 It is the inside schematic diagram of the utility model driving box side;

[0018] Figure 4The utility model discloses a Figure 3 Detail structure schematic diagram at A in the middle

[0019] Figure 5 The utility model discloses a drive box internal partial structure schematic Figure 1

[0020] Figure 6 The utility model discloses a drive box internal partial structure schematic Figure 2 .

[0021] Mark explanation: 1 host computer, 2 first connecting rod, 3 propeller, 4 protective ring, 5 first side ring, 6 second side ring, 7 third side ring, 8 fourth side ring, 9 drive box, 10 counterweight, 11 support rod, 12 second connecting rod, 13 sleeve, 14 connecting shaft, 15 first gear, 16 second gear, 17 servo motor, 18 second rotating shaft, 19 screw pipe, 20 screw thread, 21 first adjusting plate, 22 second adjusting plate, 23 tooth, 24 first limit strip, 25 second limit strip. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings and specific embodiment. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0023] As Figures 1-6 Shown in the utility model discloses a kind of fan blade inspection device based on unmanned aerial vehicle, including host computer 1, a plurality of first connecting rod 2 are installed in the circumference array on the outside of host computer 1, propeller 3 is installed on first connecting rod 2, circular ring-shaped protective ring 4 is connected between the outer end of a plurality of first connecting rod 2, circular ring-shaped first side ring 5 and second side ring 6 are installed on the top of protective ring 4, circular ring-shaped third side ring 7 and fourth side ring 8 are installed on the bottom of protective ring 4, drive box 9 and counterweight 10 are installed on protective ring 4 and are symmetrically arranged, first side ring 5, second side ring 6, third side ring 7 and fourth side ring 8 one end extend to drive box 9 place, and the other end extends to counterweight 10 place, coupling piece is installed on both ends of first side ring 5, second side ring 6, third side ring 7 and fourth side ring 8, and is installed on protective ring 4 by coupling piece;

[0024] ​​Based on the above, in operation, the plurality of propellers 3 on the first connecting rod 2 operate to make the device take off, and the fan blades are inspected. In the inspection process, the protective ring 4 connected between the outer ends of the first connecting rod 2 protects the main machine 1 and other devices on the inner side from being directly contacted by the fan blades from the side;

[0025] Further, since the unmanned aerial vehicle device needs to pass over the top and bottom of the fan during inspection, in addition to the protection of the unmanned aerial vehicle by the protective ring 4 on the horizontal angle from the side, a plurality of side rings that can be turned over are installed on the top and bottom of the protective ring 4. When the unmanned aerial vehicle device passes over the top or bottom of the fan, the side ring part is driven by the driving part in the driving box 9, and is turned over and raised on the protective ring 4 through the coupling piece, thereby protecting the top or bottom of the unmanned aerial vehicle device, achieving overall protection and avoidance, and avoiding damage to the unmanned aerial vehicle and the fan caused by the propellers 3 on the unmanned aerial vehicle hitting the blades of the fan.

[0026] Based on the above, even if a collision causes the unmanned aerial vehicle device to fall, the turned-over and raised side ring cooperates with the protective ring 4 to avoid the unmanned aerial vehicle device inside the protective ring 4 and the side ring from directly contacting the ground, thereby providing good protection effect.

[0027] The first side ring 5 and the second side ring 6 are symmetrically arranged on the top of the protective ring 4, and the third side ring 7 and the fourth side ring 8 are symmetrically arranged on the bottom of the protective ring 4. The first side ring 5, the second side ring 6, the third side ring 7 and the fourth side ring 8 have the same curvature and coincide with the protective ring 4.

[0028] The positions and curvatures of the plurality of side rings are limited, so that the plurality of turned-over and raised side rings can form a good protection space with the protective ring 4, thereby providing effective protection for the main machine 1 part inside.

[0029] The coupling piece includes a support rod 11 fixed to the inner and outer sidewalls of the protective ring 4. A second connecting rod 12 extending to the top and bottom of the protective ring 4 is installed at the outer end of the support rod 11. A sleeve 13 is installed at both ends of the second connecting rod 12. A rotating connecting shaft 14 is inserted into the sleeve 13.

[0030] The connecting shaft 14 penetrates the two ends of the first side ring 5, the second side ring 6, the third side ring 7 and the fourth side ring 8 in sequence, and on the same side ring, the two ends of the connecting shaft 14 are located on the same straight line.

[0031] Based on the above, the first side ring 5, the second side ring 6, the third side ring 7 and the fourth side ring 8 are installed on the protective ring 4 through the sleeve 13 and the first connecting rod 2 and the like after penetrating the connecting shaft 14, and when the side rings are turned over, the connecting shaft 14 at both ends rotates in the sleeve 13 at the end of the second connecting rod 12 to support and limit the turning of the side rings.

[0032] The connecting piece located at one side of the driving box 9 penetrates into the inside of the driving box 9, the connecting shaft 14 at the end of the first side ring 5 and the second side ring 6 located in the inside of the driving box 9 is respectively provided with a first gear 15, the two first gears 15 are located in the same plane, the connecting shaft 14 at the end of the third side ring 7 and the fourth side ring 8 located in the inside of the driving box 9 is respectively provided with a second gear 16, the two second gears 16 are located in the same plane, and a gap A is left between the plane where the first gear 15 is located and the plane where the second gear 16 is located;

[0033] The first gear 15 and the second gear 16 are used to drive the connecting shaft 14 to rotate in the sleeve 13, thereby driving the several side rings to turn over on the protective ring 4.

[0034] A servo motor 17 is installed at the bottom of the driving box 9, the output shaft of the servo motor 17 is connected with a second rotating shaft 18 extending into the inside of the driving box 9, the second rotating shaft 18 extends from the gap A to the top of the driving box 9, and two symmetrical threads 20 are formed on the outer wall of the second rotating shaft 18, the rotation directions of the two threads 20 are opposite;

[0035] Two screw pipes 19 are sleeved on the outside of the second rotating shaft 18, and the two screw pipes 19 are respectively matched with the two threads 20;

[0036] A first adjusting plate 21 is arranged between the two first gears 15, a second adjusting plate 22 is arranged between the two second gears 16, and teeth 23 are installed on the two sides of the first adjusting plate 21 and the second adjusting plate 22, the first adjusting plate 21 is engaged with the first gears 15 on the two sides through the teeth 23, the second adjusting plate 22 is engaged with the second gears 16 on the two sides through the teeth, and the two screw pipes 19 are respectively fixed on the outer walls of the first adjusting plate 21 and the second adjusting plate 22;

[0037] Based on the above, when the servo motor 17 drives the second rotating shaft 18 to rotate in the inside of the driving box 9, the two threads 20 with opposite directions on the second rotating shaft 18 will drive the two screw pipes 19 to move close to or away from each other, and since the two screw pipes 19 are respectively fixed on the first adjusting plate 21 and the second adjusting plate 22, when the two screw pipes 19 move close to each other, the first adjusting plate 21 and the second adjusting plate 22 will move close to each other, and when the two screw pipes 19 move away from each other, the first adjusting plate 21 and the second adjusting plate 22 will move away from each other;

[0038] Further, when the first adjusting plate 21 and the second adjusting plate 22 are close to each other, the first adjusting plate 21 moves downward, pushes the first gear 15 to rotate, drives the connecting shaft 14 connected with the first gear 15 to rotate in the sleeve pipe 13, and further drives the first side ring 5 and the second side ring 6 to rise on the protection ring 4, while the second adjusting plate 22 moves downward, pushes the second gear 16 to rotate, drives the connecting shaft 14 connected with the second gear 16 to rotate in the sleeve pipe 13, and drives the third side ring 7 and the fourth side ring 8 to turn downward on the protection ring 4, as shown in the figure, the plurality of side rings are in an open state on the protection ring 4, and provide multi-angle protection for the drone main machine 1 part located on the inner side. Figure 2

[0039] When the first adjusting plate 21 and the second adjusting plate 22 are away from each other, the first gear 15, the second gear 16, the first adjusting plate 21, the second adjusting plate 22 and other components are sequentially driven to operate, so as to retract the first side ring 5, the second side ring 6, the third side ring 7 and the fourth side ring 8, and fit on the top and bottom of the protection ring 4, as shown in the figure, at this time, only the side surface of the protection ring 4 part in the horizontal direction provides protection for the drone main machine 1 part located on the inner side. Figure 1

[0040] Among them, the counterweight 10 is located on the other side of the drive box 9, and is symmetrically arranged, and the weight is the same as that on one side of the drive box 9, so as to balance the weight on one side of the drive box 9 and balance the protection ring 4 on both sides.

[0041] Further, in order to enable the first adjusting plate 21 and the second adjusting plate 22 to follow a certain path during the lifting and moving away and close to each other, a first limiting strip 24 is attached to the front and rear sides of the first adjusting plate 21 respectively, and a second limiting strip 25 is attached to the front and rear sides of the second adjusting plate 22 respectively, and the limiting strips are used for clamping and limiting the adjusting plates to realize stable movement of the adjusting plates.

[0042] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.​​

Claims

1. An unmanned aerial vehicle (UAV) based wind turbine blade inspection apparatus, comprising: The utility model provides a kind of main machine, a plurality of first connecting rods in circumferential array are installed outside the main machine, propeller is installed on the first connecting rod, protective ring of circular ring is connected between the outer end of the plurality of first connecting rods, first side ring and second side ring of circular ring are installed on the top of protective ring, third side ring and fourth side ring of circular ring are installed on the bottom of protective ring, driving box and counterweight are installed on the protective ring and are symmetrically arranged, first side ring, second side ring, third side ring and fourth side ring extend to driving box at one end, and extend to counterweight at the other end, coupling is installed on the protective ring in both ends of first side ring, second side ring, third side ring and fourth side ring and is installed by coupling.

2. The unmanned aerial vehicle based wind turbine blade inspection device of claim 1, wherein: The first side ring and the second side ring are symmetrically arranged on the top of the protective ring, and the third side ring and the fourth side ring are symmetrically arranged on the bottom of the protective ring, and the first side ring, the second side ring, the third side ring and the fourth side ring have the same curvature and coincide with the protective ring.

3. The unmanned aerial vehicle based wind turbine blade inspection device of claim 1, wherein: The coupling includes a support rod fixed on the inner and outer sidewalls of the protective ring, a second connecting rod extending to the top and bottom of the protective ring is installed on the outer end of the support rod, a sleeve is installed on both ends of the second connecting rod, and a rotating connecting shaft is inserted into the sleeve.

4. The unmanned aerial vehicle based wind turbine blade inspection device of claim 3, wherein: The connecting shaft sequentially penetrates both ends of the first side ring, the second side ring, the third side ring and the fourth side ring.

5. The unmanned aerial vehicle based wind turbine blade inspection device of claim 4, wherein: The coupling on one side of the driving box penetrates into the interior of the driving box, the connecting shaft end portions of the first side ring and the second side ring in the interior of the driving box are each provided with a first gear, the two first gears are located on the same plane, the connecting shaft end portions of the third side ring and the fourth side ring in the interior of the driving box are each provided with a second gear, the two second gears are located on the same plane, and a gap A is left between the plane on which the first gear is located and the plane on which the second gear is located.

6. The unmanned aerial vehicle based wind turbine blade inspection device of claim 5, wherein: A servo motor is installed at the bottom of the driving box, a second rotating shaft extending into the interior of the driving box is connected to the output shaft of the servo motor, the second rotating shaft extends from the gap A to the top of the driving box, and two symmetrical threads are formed on the outer wall of the second rotating shaft. Two screw pipes are sleeved on the outside of the second rotating shaft, and the two screw pipes are respectively matched with the two threads.

7. The unmanned aerial vehicle based wind turbine blade inspection device of claim 6, wherein: A first adjusting plate is arranged between the two first gears, a second adjusting plate is arranged between the two second gears, teeth are installed on both sides of the first adjusting plate and the second adjusting plate, the first adjusting plate is engaged with the first gears on both sides through the teeth, the second adjusting plate is engaged with the second gears on both sides through the teeth, and the two screw pipes are respectively fixed on the outer walls of the first adjusting plate and the second adjusting plate.

8. The unmanned aerial vehicle based wind turbine blade inspection device of claim 7, wherein: A first limiting strip is attached to each of the front and rear sides of the first adjusting plate, and a second limiting strip is attached to each of the front and rear sides of the second adjusting plate.

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