A wind power tower cylinder weld automatic visual detection device and method

Abstract

This invention discloses an automatic visual inspection device and method for wind turbine tower welds, including a host computer, a device housing, a crossbeam, a longitudinal slide rail, a cylinder, a vacuum suction cup, and a camera. The crossbeam is located inside the device housing, the longitudinal slide rail is installed below the crossbeam, the camera is connected below the longitudinal slide rail, the cylinder is installed outside the device housing, the vacuum suction cup is installed below the cylinder, and the actuating cylinder is connected to the vacuum suction cup. The host computer is connected to the camera and the cylinder. This device and method can automatically visually inspect tower welds.

Description

Technical Field

[0001] This invention belongs to the field of non-destructive testing technology and relates to an automatic visual inspection device and method for wind turbine tower welds. Background Technology

[0002] Currently, the inspection of wind turbine tower welds is mostly done by sampling ultrasonic and radiographic tests during wind turbine shutdowns. Since the tower is tens of meters high, the relevant non-destructive testing requires a lot of manpower and resources and is inefficient. Multiple sampling cycles are needed to complete the non-destructive testing of all welds. If any weld abnormality is found during the sampling period, it may cause the tower to collapse.

[0003] To enhance the condition monitoring of wind turbine tower welds and enable real-time visual inspection of wind turbine tower welds, it is necessary to develop an automatic visual inspection device and method for tower welds. This device and method can automatically perform visual inspection of tower welds, monitor their condition, and provide technical support for the safe operation of wind turbines. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic visual inspection device and method for wind turbine tower welds, which can automatically visually inspect tower welds.

[0005] To achieve the above objectives, the automatic visual inspection device for wind turbine tower welds of the present invention includes a host computer, a device housing, a crossbeam, a longitudinal slide rail, a cylinder, a vacuum suction cup, and a camera; the crossbeam is located inside the device housing, the longitudinal slide rail is installed below the crossbeam, the camera is connected below the longitudinal slide rail, the cylinder is installed outside the device housing, the vacuum suction cup is installed below the cylinder, and the actuating cylinder is connected to the vacuum suction cup.

[0006] The host computer is connected to the camera and cylinder.

[0007] The longitudinal slide rail is perpendicular to the crossbeam.

[0008] Auxiliary light sources are installed around the camera.

[0009] The device housing is equipped with drive wheels.

[0010] Magnets are installed on the outer wall of the drive wheel.

[0011] The camera is connected to the bottom of the longitudinal slide rail via a universal joint.

[0012] It also includes a telescopic rod; the upper end of the universal joint is provided with a slider that cooperates with the longitudinal track, wherein one end of the telescopic rod is fixed to the outer shell of the device, the other end of the telescopic rod is connected to the slider, and the telescopic rod and the universal joint are connected to the host computer.

[0013] The host computer is connected to the camera and cylinder via a wireless transceiver.

[0014] The automatic visual inspection method for wind turbine tower welds of the present invention includes the following steps:

[0015] The actuating cylinder causes the vacuum suction cup to adhere to the tower, and the camera captures images of the weld seam. The captured images are then transmitted back to the host computer, where inspectors view and analyze them to achieve visual inspection of the wind turbine tower weld seam.

[0016] The present invention has the following beneficial effects:

[0017] In specific operation, the automatic visual inspection device and method for wind turbine tower welds described in this invention involves attaching a vacuum suction cup to the tower and then moving a camera along a longitudinal slide rail. During this movement, the camera captures images of the welds and transmits the captured images back to a host computer. Inspectors can then view and analyze the images. This eliminates the need to wait for the wind turbine to shut down or for inspection personnel to climb the tower for inspection, and it can efficiently monitor the status of the tower welds, saving manpower and improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a top view of the present invention.

[0020] Among them, 1 is the device shell, 2 is the crossbeam, 3 is the longitudinal slide rail, 4 is the wireless transceiver, 5 is the cylinder, 6 is the vacuum suction cup, 7 is the universal joint, and 8 is the camera. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Furthermore, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion regarding the concepts disclosed in the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0022] The accompanying drawings show structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not drawn to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0023] refer to Figure 1 and Figure 2 The automatic visual inspection device for wind turbine tower welds of the present invention includes a device housing 1, a crossbeam 2, a longitudinal slide rail 3, a wireless transceiver 4, a cylinder 5, a vacuum suction cup 6, a universal joint 7, and a camera 8. The crossbeam 2 is located inside the device housing 1, the longitudinal slide rail 3 is installed below the crossbeam 2 and is perpendicular to the crossbeam 2, the camera 8 is connected to the lower part of the longitudinal slide rail 3 through the universal joint 7, the cylinder 5 is installed on the outer side of the device housing 1, the vacuum suction cup 6 is installed below the cylinder 5, the actuating cylinder 5 is connected to the vacuum suction cup 6, and an auxiliary light source is installed around the camera 8 to provide auxiliary lighting when the ambient light is insufficient. The device housing 1 is provided with a drive wheel, and a magnet is provided on the outer wall of the drive wheel. The upper end of the universal joint 7 is provided with a slider that cooperates with the longitudinal track 3. One end of the telescopic rod is fixed to the device housing 1, and the other end of the telescopic rod is connected to the slider. By extending and retracting the telescopic rod, the slider moves on the longitudinal track 3, thereby realizing the longitudinal movement of the camera 8.

[0024] The host computer is connected to the camera 8, universal joint 7, cylinder 5, drive wheel, auxiliary light source and telescopic rod.

[0025] The automatic visual inspection method for wind turbine tower welds of the present invention includes the following steps:

[0026] The crossbeam 2 is installed on the outer casing 1 of the device, the longitudinal slide rail 3 is installed on the lower side of the crossbeam 2, and the universal joint 7 and camera 8 are installed below the longitudinal slide rail 3. The wireless transceiver 4 and cylinder 5 are installed on the outer wall of the outer casing 1 of the device, and the vacuum suction cup 6 is installed below the cylinder 5. After installation, the entire device is placed on the tower weld. The cylinder 5 is activated to make the vacuum suction cup 6 adhere to the tower. The extension and retraction of the telescopic rod drives the camera 8 to move, so as to realize the acquisition of weld images. In addition, the action of the cylinder 5 drives the vacuum suction cup 6 to separate from the tower. Then, the drive wheel is controlled to rotate, so as to realize the movement of the entire device. The movement of the slider and the rotation of the universal joint 7 enable the camera 8 to capture a full video of the weld. The video is transmitted back to the host computer through the wireless transceiver 4. The inspectors can view and analyze the video inspection results, and the visual inspection of the wind turbine tower weld can be realized on the host computer.

Claims

1. A method for automatic visual inspection of weld seams of a wind turbine tower, characterized in that The application discloses a wind power tower cylinder weld automatic visual detection device, which is characterized by comprising an upper computer, a device shell (1), a cross beam (2), a longitudinal slide rail (3), a cylinder (5), a vacuum chuck (6) and a camera (8). The cross beam (2) is located in the interior of the device shell (1), the longitudinal slide rail (3) is installed below the cross beam (2), the camera (8) is connected below the longitudinal slide rail (3), the cylinder (5) is installed outside the device shell (1), the vacuum chuck (6) is installed below the cylinder (5), and the cylinder (5) is connected with the vacuum chuck (6). The upper computer is connected with the camera (8) and the cylinder (5). An auxiliary light source is installed around the camera (8). The camera (8) is connected below the longitudinal slide rail (3) through a universal joint (7). The device further comprises a telescopic rod, the upper end of the universal joint (7) is provided with a sliding block matched with the longitudinal slide rail (3), one end of the telescopic rod is fixed on the device shell (1), the other end of the telescopic rod is connected with the sliding block, and the telescopic rod and the universal joint (7) are connected with the upper computer. The longitudinal slide rail (3) is perpendicular to the cross beam (2). The device shell (1) is provided with a driving wheel. Magnets are arranged on the outer wall of the driving wheel. The upper computer is connected with the camera (8) and the cylinder (5) through a wireless transceiver (4). The device comprises the following steps: The cylinder (5) is operated to enable the vacuum chuck (6) to be adsorbed on the tower cylinder, the camera (8) is used to realize the collection of a weld image, the collected image is transmitted back to the upper computer, an inspector checks and analyzes the image, and thus the visual detection of the wind power tower cylinder weld is realized.

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