Fan blade surface damage inspection device

Abstract

The utility model relates to the technical field of intelligent inspection, in particular to a fan blade surface damage inspection device. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, four wings are installed on the surface of the unmanned aerial vehicle body, a supporting device is arranged on the lower surface of the unmanned aerial vehicle body, the supporting device comprises four fixing blocks, every two fixing blocks form a group, the ends, close to each other, of the fixing blocks in each group are fixedly connected with connecting rods, and the connecting rods are connected with the unmanned aerial vehicle body. A supporting plate is rotationally connected to the arc face of the connecting rod, baffles are fixedly connected to the two sides of the supporting plate, and a square groove is formed in the surface of the fixing block. The problem that when the unmanned aerial vehicle body performs inspection work in a wet environment or an environment full of dust and sand, the inspection equipment of the unmanned aerial vehicle body is too close to the ground, so that dust is splashed and attached to the surface of the inspection equipment in the take-off process of the unmanned aerial vehicle body, and the inspection effect is reduced is solved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent inspection technology, and in particular to a device for inspecting surface damage on wind turbine blades. Background Technology

[0002] Wind turbines, as key equipment for energy conversion and utilization, are widely used in many fields such as power and chemical industries. Wind turbine blades, as the core components of wind turbines, are constantly exposed to complex and harsh working environments, enduring wind loads, dust erosion, ultraviolet radiation, and other factors. While the technology of using drones to replace manual inspections is becoming increasingly mature, wind turbines are often located in harsh environments. In such conditions, if a drone directly contacts the ground, it may cause damage to the drone's fuselage and the camera used for scanning.

[0003] The inventors believe that the following defects often exist: as the core component of a wind turbine, wind turbine blades are in a complex and harsh working environment for a long time, enduring the effects of wind loads, sand and dust erosion, ultraviolet radiation, and other factors. The technology of using drones to replace manual inspection is becoming increasingly mature. However, wind turbines are often located in harsh environments. In such environments, if the drone is in direct contact with the ground, and the drone body is conducting inspection work in some humid or dusty and sandy environments, and the inspection equipment of the drone body is too close to the ground, dust will splash and adhere to the surface of the inspection equipment during the takeoff of the drone body, resulting in a reduction in the inspection effect. Therefore, a wind turbine blade surface damage inspection device is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where, when a drone is inspected in humid or dusty / sandy environments, the inspection equipment is too close to the ground, causing dust to splash and adhere to the surface of the inspection equipment during takeoff. Therefore, this invention proposes a wind turbine blade surface damage inspection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wind turbine blade surface damage inspection device, comprising a drone body, four wings mounted on the surface of the drone body, a support device provided on the lower surface of the drone body, the support device comprising four fixing blocks, the four fixing blocks being grouped in pairs, a connecting rod being fixedly connected to one end of each pair of fixing blocks, a support plate being rotatably connected to the arc surface of the connecting rod, baffles being fixedly connected to both sides of the support plate, a square groove being formed on the surface of the fixing block, an inclined plate being slidably inserted into the fixing block, a first spring being fixedly connected to one end of the inclined plate, and the end of the first spring away from the inclined plate being slidably connected to the surface of the square groove of the fixing block.

[0006] The aforementioned components achieve the following effect: by setting up a support device, the drone body is supported, preventing dust from splashing onto the surface of the inspection equipment during takeoff when the drone body is conducting inspection work in humid or dusty / sandy environments, and when the inspection equipment of the drone body is too close to the ground, thus reducing the inspection effect and improving the practicality of the device.

[0007] Preferably, the arc surface of the connecting rod is fitted with two torsion springs, and the two ends of the torsion springs are respectively fixedly connected to the fixing block and the support plate.

[0008] The aforementioned components achieve the following effect: they automatically retract the support plate. During the use of the drone, the support plate sometimes needs to be retracted according to different work scenarios or transportation needs. The operator only needs to push the ramp, and the torque of the torsion spring will make the support plate automatically rotate and fit the drone body, which greatly simplifies the operation process, saves time and manpower, improves the efficiency of drone use, and allows the operator to focus more on the inspection task itself.

[0009] Preferably, two square blocks are fixedly connected to the surface of the support plate, a fixing rod is fixedly connected to the surface of the square blocks, a single-hole plate is slidably connected to the arc surface of the fixing rod, an insertion rod is fixedly connected to one side of the single-hole plate, an extension plate is slidably connected inside the support plate, a circular hole is opened on the surface of the extension plate, the arc surface of the insertion rod is slidably connected to the circular hole of the extension plate, and the arc surface of the insertion rod is slidably connected to the support plate.

[0010] The aforementioned components achieve the following effects: they enhance the stability of the drone's parking in complex terrain, preventing ordinary support structures from providing stable support for the drone on uneven surfaces. By adjusting the extension length of the extension plate, the drone can better adapt to ground with different height differences, ensuring that each support point is in close contact with the ground. This prevents the drone from swaying, tilting, or even tipping over due to uneven ground, thus guaranteeing stable parking of the drone in complex terrain environments.

[0011] Preferably, one end of the fixing rod is fixedly connected to a hexagonal plate, and the size of the insertion rod is adapted to the size of the circular hole in the extension plate.

[0012] The effect achieved by the above-mentioned components is to prevent the single-hole plate from being pulled off, thus avoiding the situation where workers use excessive force when pulling the single-hole plate, causing it to detach from the arc surface of the fixing rod and requiring secondary installation.

[0013] Preferably, each of the four wings is provided with a protective device, which includes four U-shaped frames. The four U-shaped frames are fixedly connected to the surfaces of the four wings respectively. An L-shaped plate is fixedly connected to one side of each U-shaped frame. A sliding rod is slidably inserted into the L-shaped plate. The arc surface of the sliding rod is slidably connected to the U-shaped frame. A sliding plate is slidably connected to the U-shaped frame. The arc surface of the sliding rod is slidably connected to the sliding plate. A protective cover is slidably connected to the inner surface of the U-shaped frame. The arc surface of the sliding rod is slidably connected to the protective cover.

[0014] The aforementioned components achieve the following effect: by setting up protective devices, the wings are protected, preventing the drone from colliding with birds or animals during operation. This would prevent localized damage to the wings, uneven stress on both sides of the wings, and alteration of the drone's aerodynamic characteristics. Such collisions would cause the drone to shake and roll violently during flight, making it difficult to control its flight direction and preventing it from flying along the predetermined route, thus seriously affecting mission execution. This improves the reliability of the device.

[0015] Preferably, a circular plate is fixedly connected to one end of the slide rod, and a second spring is sleeved on the arc surface of the slide rod. The two ends of the second spring are fixedly connected to the circular plate and the L-shaped plate, respectively.

[0016] The aforementioned components achieve the following effect: they improve the stability of the slide bar, preventing the drone from colliding with birds and animals during flight, which could cause the slide bar to shift under stress, detach from the sliding plate, and reduce the protective effect.

[0017] Preferably, a connecting plate is fixedly connected to the surface of the U-shaped frame, and a limit plate is rotatably connected to one side of the connecting plate.

[0018] The aforementioned components achieve the following effect: they restrict the position of the sliding rod, preventing it from moving within the L-shaped plate due to external forces during the installation of the protective cover, thus avoiding any impact on the installation of the protective cover.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] 1. In this utility model, by setting a support device, the effect of supporting the drone body is achieved, avoiding the situation where the drone body is used for inspection work in some humid or dusty / sandy environments, and the inspection equipment of the drone body is too close to the ground, causing dust to splash and adhere to the surface of the inspection equipment during the takeoff of the drone body, resulting in a reduction of the inspection effect, thus improving the practicality of the device.

[0021] 2. In this utility model, by setting up a protective device, the effect of protecting the wings is achieved, avoiding collisions between the drone body and birds or animals during operation, which would cause local damage to the wings, uneven force on both sides of the wings, and change the aerodynamic characteristics of the drone body. This would cause the drone body to shake and roll violently during flight, making it difficult to control the flight direction and unable to fly according to the predetermined route, seriously affecting the execution of the mission, thus improving the reliability of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the support device in this utility model;

[0024] Figure 3 This is a partial structural schematic diagram of the support device in this utility model;

[0025] Figure 4 This is a schematic diagram of the protective device in this utility model;

[0026] Figure 5 In this utility model Figure 4 Enlarged view of point A.

[0027] Legend: 1. UAV body; 2. Wing; 3. Support device; 4. Protective device; 301. Fixing block; 302. Connecting rod; 303. Support plate; 304. Baffle; 305. First spring; 306. Inclined plate; 307. Square block; 308. Single-hole plate; 309. Fixing rod; 310. Insert rod; 311. Hexagonal plate; 312. Extension plate; 313. Torsion spring; 41. U-shaped frame; 42. L-shaped plate; 43. Sliding rod; 44. Sliding plate; 45. Protective cover; 46. Circular plate; 47. Second spring; 48. Connecting plate; 49. Limiting plate. Detailed Implementation

[0028] Reference Figure 1As shown, this utility model provides a technical solution: a wind turbine blade surface damage inspection device, including a drone body 1, four wings 2 installed on the surface of the drone body 1, and a support device 3 provided on the lower surface of the drone body 1. By setting the support device 3, the drone body 1 is supported, avoiding the situation where the drone body 1 is too close to the ground during inspection work in some humid or dusty / sandy environments, causing dust to splash and adhere to the surface of the inspection device during takeoff, thus reducing the inspection effect and improving the practicality of the device. The surface of each of the four wings 2 is provided with a protective device 4, which protects the wings 2 and prevents the drone body 1 from colliding with birds or animals during operation, causing local damage to the wings 2. Uneven force on the two sides of the wings 2 will change the aerodynamic characteristics of the drone body 1, which will cause the drone body 1 to shake and roll violently during flight, making it difficult to control the flight direction and unable to fly according to the predetermined route, seriously affecting the execution of the mission, thus improving the reliability of the device.

[0029] The specific setup and function of its support device 3 and protective device 4 will be explained below.

[0030] Reference Figure 2 and Figure 3As shown in this embodiment: the support device 3 includes four fixing blocks 301, which are arranged in pairs. A connecting rod 302 is fixedly connected to one end of each pair of fixing blocks 301 that is close to each other. A support plate 303 is rotatably connected to the arc surface of the connecting rod 302. Baffles 304 are fixedly connected to both sides of the support plate 303. A square groove is formed on the surface of the fixing block 301. An inclined plate 306 is slidably inserted into the fixing block 301. A first spring 305 is fixedly connected to one end of the inclined plate 306. The end of the first spring 305 away from the inclined plate 306 is slidably connected to the surface of the square groove of the fixing block 301. Two torsion springs 313 are sleeved on the arc surface of the connecting rod 302. The two ends of the torsion springs 313 are fixedly connected to the fixing block 301 and the support plate 303, respectively. Next, when the operator needs to retract the support plate 303, the operator first pushes the inclined plate 306 to slide on the surface of the baffle 304. At this time, the first spring 305 is compressed. When the surface of the inclined plate 306 is completely separated from the baffle 304, the torque of the torsion spring 313 drives the support plate 303 to rotate on the arc surface of the connecting rod 302. The support plate 303 drives the baffle 304 to rotate until the support plate 303 is in contact with the surface of the drone body 1. At this time, the support plate 303 is automatically retracted. During the use of the drone body 1, it is sometimes necessary to retract the support plate 303 according to different operation scenarios or transportation needs. The operator only needs to push the inclined plate 306, and the torque of the torsion spring 313 can make the support plate 303 automatically rotate and be in contact with the baffle 304. The combined drone body 1 greatly simplifies the operation process, saves time and manpower, and improves the efficiency of drone use, allowing operators to focus more on the inspection task itself. Two square blocks 307 are fixedly connected to the surface of the support plate 303. A fixing rod 309 is fixedly connected to the surface of the square blocks 307. A single-hole plate 308 is slidably connected to the arc surface of the fixing rod 309. An insertion rod 310 is fixedly connected to one side of the single-hole plate 308. An extension plate 312 is slidably connected inside the support plate 303. A circular hole is opened on the surface of the extension plate 312. The arc surface of the insertion rod 310 is slidably connected to the circular hole of the extension plate 312, and the arc surface of the insertion rod 310 is slidably connected to the support plate 303. When supporting the drone body 1 on uneven ground, the operator first... Rotating the support plate 303 causes the square block 307 to rotate on the arc surface of the connecting rod 302. When the surface of the support plate 303 is in contact with the surface of the inclined plate 306, the operator can pull the single-hole plate 308 to slide the insertion rod 310 on the arc surface of the fixed rod 309 until the insertion rod 310 is completely separated from the surface of the circular hole of the extension plate 312. Then, the extension plate 312 slides within the support plate 303 under the influence of gravity. When the extension plate 312 slides to a certain position, the operator can push the single-hole plate 308 to slide the insertion rod 310 on the plate surface of the support plate 303 until the insertion rod 310 is inserted into the circular hole of the extension plate 312. This enhances the effect of stable parking of the UAV body 1 in complex terrain and avoids damage on uneven roads.Ordinary support structures may not provide stable support for the drone body 1. By adjusting the extension length of the extension plate 312, the drone body 1 can better adapt to ground with different height differences, ensuring that each support point is tightly in contact with the ground. This prevents the drone body 1 from swaying, tilting, or even tipping over due to uneven ground, guaranteeing stable parking of the drone in complex terrain environments. One end of the fixing rod 309 is fixedly connected to a hexagonal plate 311, and the size of the insertion rod 310 is adapted to the size of the circular hole in the extension plate 312. When the operator needs to use the extension plate 312, firstly, the operator pulls the single-hole plate 308, causing the insertion rod 310 to slide on the arc surface of the fixing rod 309. The surface of the single-hole plate 308 is in contact with the hexagonal plate 311, and the insertion rod 310 is completely separated from the surface of the circular hole of the extension plate 312. This achieves the effect of preventing the single-hole plate 308 from being pulled off, avoiding the situation where the operator uses excessive force when pulling the single-hole plate 308, causing the single-hole plate 308 to detach from the arc surface of the fixing rod 309, thus requiring a second installation.

[0031] Reference Figure 4 and Figure 5As shown, specifically, the four protective devices 4 include four U-shaped frames 41, which are fixedly connected to the surfaces of the four wings 2 respectively. An L-shaped plate 42 is fixedly connected to one side of each U-shaped frame 41. A sliding rod 43 is slidably inserted into the L-shaped plate 42, and the arc surface of the sliding rod 43 is slidably connected to the U-shaped frame 41. A sliding plate 44 is slidably connected to the U-shaped frame 41, and the arc surface of the sliding rod 43 is slidably connected to the sliding plate 44. A protective cover 45 is slidably connected to the inner surface of the U-shaped frame 41, and the arc surface of the sliding rod 43 is slidably connected to the protective cover 45. A circular plate is fixedly connected to one end of the sliding rod 43. 46. ​​A second spring 47 is fitted onto the arc surface of the sliding rod 43. The two ends of the second spring 47 are fixedly connected to the circular plate 46 and the L-shaped plate 42, respectively. When the worker needs to install the protective cover 45, they first pull the sliding rod 43 to slide within the sliding plate 44. At this time, the second spring 47 is stretched until the arc surface of the sliding rod 43 is completely separated from the sliding plate 44. Then, the worker pulls the sliding plate 44 to slide on the surface of the U-shaped frame 41. When the sliding plate 44 moves to the appropriate position, the worker can place the protective cover 45 on the inner surface of the U-shaped frame 41 and slide it. The worker then releases the sliding plate 46. 4. The sliding plate 44 slides within the U-shaped frame 41 under the influence of gravity. Then, the operator releases the sliding rod 43. At this time, the rebound force of the second spring 47 drives the circular plate 46 to move. The circular plate 46 drives the sliding rod 43 to slide within the U-shaped frame 41 until the sliding rod 43 inserts into the sliding plate 44. This achieves the effect of improving the stability of the sliding rod 43, preventing the UAV body 1 from colliding with birds and animals during flight, which could cause the sliding rod 43 to move under force and fall out of the sliding plate 44, thus reducing the protective effect. A connecting plate 48 is fixedly connected to the surface of the U-shaped frame 41. One side of the connecting plate 48 is rotatably connected to the limiting plate 49. When the worker needs to install the protective cover 45, the worker first pulls the slide rod 43 to slide inside the L-shaped plate 42 until the slide rod 43 is completely separated from the U-shaped frame 41. Then the worker can rotate the limiting plate 49 to one side of the connecting plate 48 until the surface of the limiting plate 49 is in contact with the slide rod 43. At this time, the position of the slide rod 43 is restricted, so as to prevent the slide rod 43 from being moved inside the L-shaped plate 42 by external force when the worker is installing the protective cover 45, which would affect the installation of the protective cover 45.

[0032] Working principle: When the operator needs to retract the support plate 303, the operator first pushes the inclined plate 306 to slide on the surface of the baffle 304. At this time, the first spring 305 is compressed. When the surface of the inclined plate 306 is completely separated from the baffle 304, the torque of the torsion spring 313 drives the support plate 303 to rotate on the arc surface of the connecting rod 302. The support plate 303 drives the baffle 304 to rotate until the support plate 303 is in contact with the surface of the drone body 1. When supporting the drone body 1 on an uneven road surface, the operator first rotates the support plate 303 to drive the square block 307 to rotate on the arc surface of the connecting rod 302. When the surface of the support plate 303 is in contact with the surface of the inclined plate 306, the operator can pull the single-hole plate 308 to drive the insertion rod 310 to slide on the arc surface of the fixed rod 309. The surface of the single-hole plate 308 is in contact with the hexagonal plate 311. At this time, the insertion rod 310 is completely separated from the surface of the round hole of the extension plate 312. Then, the extension plate 312 slides in the support plate 303 under the influence of gravity. When the extension plate 312 slides to a certain position, the operator can push the single-hole plate 308 to drive the insertion rod 310 to slide on the surface of the support plate 303 until the insertion rod 310 is inserted into the round hole of the extension plate 312, thus achieving the effect of supporting the UAV body 1. This avoids the situation where the UAV body 1 is in a humid or dusty / sandy environment for inspection work, and the inspection equipment of the UAV body 1 is too close to the ground, causing dust to splash and adhere to the surface of the inspection equipment during the takeoff of the UAV body 1, resulting in a reduction in the inspection effect, thus improving the practicality of the device.

[0033] When the worker needs to install the protective cover 45, first pull the sliding rod 43 to slide within the sliding plate 44. At this time, the second spring 47 is stretched until the arc surface of the sliding rod 43 is completely separated from the sliding plate 44. Then, the worker pulls the sliding plate 44 to slide on the surface of the U-shaped frame 41 until the sliding rod 43 is completely detached from the U-shaped frame 41. Then, the worker can rotate the limiting plate 49 on one side of the connecting plate 48 until the surface of the limiting plate 49 is in contact with the sliding rod 43. The worker can then place the protective cover 45 to slide on the inner surface of the U-shaped frame 41. The worker releases the sliding plate 44, which slides within the U-shaped frame 41 under the influence of gravity. When the operator releases the slide bar 43, the rebound force of the second spring 47 causes the circular plate 46 to move. The circular plate 46 then causes the slide bar 43 to slide within the U-shaped frame 41 until the slide bar 43 inserts into the sliding plate 44. This achieves the effect of protecting the wing 2, preventing the UAV body 1 from colliding with birds or animals during operation. This would cause localized damage to the wing 2, resulting in uneven force distribution on both sides of the wing 2 and altering the aerodynamic characteristics of the UAV body 1. This would cause the UAV body 1 to experience violent shaking and tumbling during flight, making it difficult to control the flight direction and preventing it from flying along the predetermined route, thus seriously affecting mission execution and improving the reliability of the device.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A wind turbine blade surface damage inspection device, comprising a drone body (1), characterized in that: The surface of the UAV body (1) is equipped with four wings (2). The lower surface of the UAV body (1) is provided with a support device (3). The support device (3) includes four fixing blocks (301). The four fixing blocks (301) are in pairs. Each pair of fixing blocks (301) is fixedly connected to a connecting rod (302) at one end close to each other. The arc surface of the connecting rod (302) is rotatably connected to a support plate (303). Both sides of the support plate (303) are fixedly connected to baffles (304). The surface of the fixing block (301) is provided with a square groove. An inclined plate (306) is slidably inserted into the fixing block (301). One end of the inclined plate (306) is fixedly connected to a first spring (305). The end of the first spring (305) away from the inclined plate (306) is slidably connected to the surface of the square groove of the fixing block (301).

2. The wind turbine blade surface damage inspection device according to claim 1, characterized in that: The arc surface of the connecting rod (302) is fitted with two torsion springs (313), and the two ends of the torsion springs (313) are fixedly connected to the fixing block (301) and the support plate (303) respectively.

3. The wind turbine blade surface damage inspection device according to claim 1, characterized in that: Two square blocks (307) are fixedly connected to the surface of the support plate (303). A fixing rod (309) is fixedly connected to the surface of the square block (307). A single-hole plate (308) is slidably connected to the arc surface of the fixing rod (309). A plug rod (310) is fixedly connected to one side of the single-hole plate (308). An extension plate (312) is slidably connected inside the support plate (303). A circular hole is opened on the surface of the extension plate (312). The arc surface of the plug rod (310) is slidably connected to the circular hole of the extension plate (312). The arc surface of the plug rod (310) is slidably connected to the support plate (303).

4. The wind turbine blade surface damage inspection device according to claim 3, characterized in that: One end of the fixing rod (309) is fixedly connected to a hexagonal plate (311), and the size of the insertion rod (310) is adapted to the size of the circular hole of the extension plate (312).

5. The wind turbine blade surface damage inspection device according to claim 1, characterized in that: The surfaces of the four wings (2) are provided with protective devices (4). The four protective devices (4) include four U-shaped frames (41). The four U-shaped frames (41) are fixedly connected to the surfaces of the four wings (2). An L-shaped plate (42) is fixedly connected to one side of the U-shaped frame (41). A sliding rod (43) is slidably inserted in the L-shaped plate (42). The arc surface of the sliding rod (43) is slidably connected to the U-shaped frame (41). A sliding plate (44) is slidably connected in the U-shaped frame (41). The arc surface of the sliding rod (43) is slidably connected to the sliding plate (44). A protective cover (45) is slidably connected to the inner surface of the U-shaped frame (41). The arc surface of the sliding rod (43) is slidably connected to the protective cover (45).

6. The wind turbine blade surface damage inspection device according to claim 5, characterized in that: One end of the slide rod (43) is fixedly connected to a circular plate (46), and a second spring (47) is sleeved on the arc surface of the slide rod (43). The two ends of the second spring (47) are fixedly connected to the circular plate (46) and the L-shaped plate (42) respectively.

7. The wind turbine blade surface damage inspection device according to claim 5, characterized in that: A connecting plate (48) is fixedly connected to the surface of the U-shaped frame (41), and a limit plate (49) is rotatably connected to one side of the connecting plate (48).

Images