Offshore wind turbine single pile welding seam flaw detection equipment

Abstract

The utility model discloses an offshore wind turbine single pile weld flaw detection device, which relates to the technical field of weld flaw detection devices and comprises a wall climbing machine and a fixing assembly, the wall climbing machine is of a detachable structure, and the fixing assembly is arranged on the front side of the wall climbing machine. The fixing assembly comprises a first fixing block, a second fixing piece, a servo motor, a limiting shaft, a movable piece, a connecting plate and an electromagnet, the first fixing block is arranged at the left end of the front side of the wall climbing machine, the second fixing piece is installed at the right end of the front side of the wall climbing machine, and the second fixing piece and the first fixing block are symmetrically arranged at the two ends of the front side of the wall climbing machine; the output end of the servo motor is connected with a limiting shaft through a coupler. According to the offshore wind turbine single-pile welding seam flaw detection equipment, the whole device can be stably fixed through the fixing assembly, the stability during flaw detection is kept, internal defects of a welding seam can be accurately found, and the device can achieve rapid installation of a flaw detector through the installation assembly so that the flaw detector can be conveniently maintained or inspected.

Description

Technical Field

[0001] This utility model relates to the technical field of weld flaw detection equipment, specifically a flaw detection device for the weld of a single pile of an offshore wind turbine. Background Technology

[0002] Offshore wind turbine monopiles are a widely used foundation structure in offshore wind power projects, primarily used to fix and support wind turbine generators. They are typically composed of large-diameter steel piles driven directly into the seabed, the depth determined by the seabed geological conditions. To ensure the structural safety and service life of offshore wind turbine monopiles, a weld flaw detection device is needed to periodically inspect the welds of the monopile foundation. However, current weld flaw detection equipment still has the following shortcomings:

[0003] For example, patent document CN221945919U discloses a metal ultrasonic flaw detector. This metal ultrasonic flaw detector can manually rotate the support rod, thereby driving the flaw detector head to rotate, and then inspect the weld from the inside of the pipe fitting. It is suitable for equipment maintenance work, making maintenance more convenient and faster. However, it is not easy to maintain its own stability during the flaw detection process, and it is prone to deviation during the detection process, resulting in insufficient detection accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a flaw detection device for the weld seam of a single pile of an offshore wind turbine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a weld flaw detection device for a single pile of an offshore wind turbine, comprising a wall-climbing machine and a fixing component. The wall-climbing machine is a detachable structure. The fixing component is located on the front side of the wall-climbing machine and includes a first fixing block, a second fixing member, a servo motor, a limit shaft, a movable member, a connecting plate, and an electromagnet. The first fixing block is located on the left front end of the wall-climbing machine, and the second fixing member is installed on the right front end of the wall-climbing machine. The second fixing member and the first fixing block are symmetrically arranged at both ends of the front side of the wall-climbing machine, and the rear surfaces of the first fixing block and the second fixing member are tightly connected to the front side of the wall-climbing machine. A servo motor is installed inside the first fixing block, and the output end of the servo motor is connected to the limit shaft through a coupling.

[0006] Furthermore, the right end of the limiting shaft is rotatably connected to the inside of the second fixing member, and a movable part is provided on the outside of the limiting shaft.

[0007] Furthermore, the movable component and the limiting shaft are an integrated structure that is tightly connected, and a connecting plate is installed at the end of the movable component away from the limiting shaft, and an electromagnet is provided on the outer surface of the connecting plate.

[0008] Furthermore, the upper side of the wall-climbing machine is provided with an installation component for installation, and the installation component includes a snap-fit ​​installation slot, a flaw detector body and a fixing frame, wherein the snap-fit ​​installation slot is opened on the upper side of the wall-climbing machine.

[0009] Furthermore, the flaw detector body is engaged and connected to the inner side of the mounting slot, and a fixing frame is provided on the outer side of the flaw detector body.

[0010] Furthermore, the mounting assembly also includes threaded mounting holes and mounting bolts, and threaded mounting holes are provided on the surface of the fixing frame and the upper surface of the snap-fit ​​mounting groove, with mounting bolts threadedly connected to the inner side of the threaded mounting holes.

[0011] Furthermore, a support cover is installed on the upper side of the flaw detector body, and a stepper motor is installed inside the support cover. The output end of the stepper motor is connected to a connecting support frame through a coupling.

[0012] Furthermore, a hydraulic push rod is installed on the upper side of the connecting support frame away from the support cover, and a flaw detector probe is provided at the bottom of the hydraulic push rod.

[0013] This utility model provides a flaw detection device for weld seams of offshore wind turbine monopile, which has the following beneficial effects:

[0014] 1. This utility model features a fixing assembly, which includes a first fixing block, a second fixing component, a servo motor, a limiting shaft, a movable component, a connecting plate, and an electromagnet. In use, the servo motor is activated, causing the limiting shaft to rotate along the inner side of the second fixing component. The limiting shaft then drives the movable component to rotate outwards around the space between the first and second fixing blocks, thereby causing the connecting plate to rotate outwards. The connecting plate further drives the electromagnet to rotate outwards, bringing the lower surface of the electromagnet into contact with the surface of the offshore wind turbine monopile. Once energized, the electromagnet is fixed to the surface of the offshore wind turbine monopile, further securing the entire device. This allows for stable fixation of the entire device, maintaining stability during flaw detection and enabling accurate detection of internal weld defects.

[0015] 2. This utility model, by setting up an installation component, includes a snap-fit ​​mounting groove, a flaw detector body, and a fixing frame. The installation component also includes threaded mounting holes and mounting bolts. In use, the flaw detector body is fixed to the wall-climbing machine by snapping into the inner side of the snap-fit ​​mounting groove, and the fixing frame is fixed to the upper surface of the snap-fit ​​mounting groove by threading the mounting bolts into the inner side of the threaded mounting holes. This improves the stability of the flaw detector body installation, thereby enabling the device to quickly install the flaw detector, facilitating the maintenance or inspection of the flaw detector. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a non-destructive testing device for a single pile weld of an offshore wind turbine according to the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the fixed component of a marine wind turbine monopile weld flaw detection device according to the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the installation components of a marine wind turbine monopile weld flaw detection device according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the flaw detector body of a flaw detection device for a single pile weld of an offshore wind turbine according to this utility model.

[0020] In the diagram: 1. Wall-climbing machine; 2. Fixing assembly; 201. First fixing block; 202. Second fixing component; 203. Servo motor; 204. Limiting shaft; 205. Moving part; 206. Connecting plate; 207. Electromagnet; 3. Mounting assembly; 301. Snap-fit ​​mounting slot; 302. Flaw detector body; 303. Fixing frame; 304. Threaded mounting hole; 305. Mounting bolt; 4. Support cover; 5. Stepper motor; 6. Connecting support frame; 7. Hydraulic push rod; 8. Flaw detector probe. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 4 As shown, a non-destructive testing device for weld seams of a single pile of an offshore wind turbine includes a wall-climbing machine 1 and a fixing assembly 2. The wall-climbing machine 1 is a detachable structure. The fixing assembly 2 is located on the front side of the wall-climbing machine 1 and includes a first fixing block 201, a second fixing component 202, a servo motor 203, a limiting shaft 204, a movable component 205, a connecting plate 206, and an electromagnet 207. The first fixing block 201 is located on the left front end of the wall-climbing machine 1, and the second fixing component 202 is installed on the right front end of the wall-climbing machine 1. The second fixing component 202 and the first fixing block 201 are symmetrically arranged at both ends of the front side of the wall-climbing machine 1, and the first fixing block 202 is located on the right front end of the wall-climbing machine 1. The rear surfaces of the fixed block 201 and the second fixed member 202 are tightly connected to the front side of the wall climbing machine 1. A servo motor 203 is installed inside the first fixed block 201, and the output end of the servo motor 203 is connected to the limit shaft 204 through a coupling. The right end of the limit shaft 204 is rotatably connected to the inside of the second fixed member 202, and a movable member 205 is provided on the outside of the limit shaft 204. The movable member 205 and the limit shaft 204 are an integrated structure that is tightly connected. A connecting plate 206 is installed on the end of the movable member 205 away from the limit shaft 204, and an electromagnet 207 is provided on the outer surface of the connecting plate 206.

[0023] The specific operation is as follows: During use, the wall-climbing machine 1 drives the flaw detector body 302 to move on the surface of the offshore wind turbine monopile. The servo motor 203 is started, which drives the limiting shaft 204 to rotate along the inner side of the second fixed part 202. The limiting shaft 204 drives the movable part 205 to rotate outward around the first fixed block 201 and the second fixed part 202, which in turn drives the connecting plate 206 to rotate outward. Furthermore, the connecting plate 206 drives the electromagnet 207 to rotate outward, so that the lower surface of the electromagnet 207 is in contact with the surface of the offshore wind turbine monopile. After the electromagnet 207 is energized, it is fixed on the surface of the offshore wind turbine monopile, further fixing the entire device.

[0024] Please refer to Figures 3 to 4 The wall-climbing machine 1 is provided with an installation component 3 for installation on its upper side. The installation component 3 includes a snap-fit ​​installation groove 301, a flaw detector body 302, and a fixing frame 303. The snap-fit ​​installation groove 301 is opened on the upper side of the wall-climbing machine 1. The flaw detector body 302 is snap-fitted to the inside of the snap-fit ​​installation groove 301. The fixing frame 303 is provided on the outside of the flaw detector body 302. The installation component 3 also includes a threaded installation hole 304 and an installation bolt 305. The surface of the fixing frame 303 and the upper surface of the snap-fit ​​installation groove 301 are provided with threaded installation holes 304. The installation bolt 305 is threaded to the inside of the threaded installation hole 304. A support cover 4 is installed on the upper side of the flaw detector body 302. A stepper motor 5 is installed inside the support cover 4. The output end of the stepper motor 5 is connected to a connecting support frame 6 through a coupling. A hydraulic push rod 7 is installed on the upper side of the connecting support frame 6 away from the support cover 4. A flaw detector probe 8 is provided at the bottom of the hydraulic push rod 7.

[0025] The specific operation is as follows: During use, the flaw detector body 302 is fixed on the wall climbing machine 1 by engaging with the inner side of the snap-fit ​​mounting slot 301. The fixing frame 303 is fixed on the upper surface of the snap-fit ​​mounting slot 301 by connecting the mounting bolt 305 with the threaded mounting hole 304, thereby improving the stability of the flaw detector body 302 installation. The stepper motor 5 is started, which drives the flaw detector probe 8 to rotate flexibly through the connecting support frame 6. The hydraulic push rod 7 is started, which drives the flaw detector probe 8 to move downward and close to the offshore wind turbine monopile, and flaw detection is performed through the flaw detector probe 8.

[0026] In summary, as Figures 1 to 4As shown, the offshore wind turbine monopile weld flaw detection equipment, in use, firstly, fixes the flaw detector body 302 to the wall-climbing machine 1 by engaging with the inner side of the snap-fit ​​mounting groove 301. Then, it fixes the fixing frame 303 to the upper surface of the snap-fit ​​mounting groove 301 by connecting the mounting bolts 305 to the threads inside the threaded mounting holes 304, improving the stability of the flaw detector body 302 installation. The wall-climbing machine 1 moves the flaw detector body 302 across the surface of the offshore wind turbine monopile. The servo motor 203 is then activated, causing the servo motor 203 to drive the limit shaft 204 to rotate along the inner side of the second fixing member 202. The limit shaft 204 then drives the movable... Part 205 rotates outward around the first fixing block 201 and the second fixing part 202, thereby driving the connecting plate 206 to rotate outward. The connecting plate 206 further drives the electromagnet 207 to rotate outward, so that the lower surface of the electromagnet 207 is in contact with the surface of the offshore wind turbine monopile. After the electromagnet 207 is energized, it is fixed on the surface of the offshore wind turbine monopile, further fixing the entire device. Then, the stepper motor 5 is started, so that the stepper motor 5 drives the flaw detector probe 8 to rotate flexibly through the connecting support frame 6. The hydraulic push rod 7 is started, so that the hydraulic push rod 7 drives the flaw detector probe 8 to move downward, close to the offshore wind turbine monopile, and performs flaw detection through the flaw detector probe 8.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A flaw detection device for weld seams of offshore wind turbine monopile, comprising a wall-climbing machine (1) and a fixing assembly (2), characterized in that: The wall-climbing machine (1) is a detachable structure. The fixing component (2) is located on the front side of the wall-climbing machine (1). The fixing component (2) includes a first fixing block (201), a second fixing member (202), a servo motor (203), a limit shaft (204), a movable member (205), a connecting plate (206), and an electromagnet (207). The first fixing block (201) is located on the left front side of the wall-climbing machine (1), and the second fixing member (202) is installed on the right front side of the wall-climbing machine (1). The second fixing member (202) and the first fixing block (201) are symmetrically arranged at both ends of the front side of the wall-climbing machine (1), and the first fixing block (201) and the second fixing member (202) are symmetrically arranged at both ends of the front side of the wall-climbing machine (1). 202) The rear surface is tightly connected to the front side of the wall climbing machine (1). The first fixing block (201) is equipped with a servo motor (203), and the output end of the servo motor (203) is connected to a limit shaft (204) through a coupling. The right end of the limit shaft (204) is rotatably connected to the inside of the second fixing member (202), and a movable part (205) is provided on the outside of the limit shaft (204). The movable part (205) and the limit shaft (204) are an integrated structure that is tightly connected. A connecting plate (206) is installed on the end of the movable part (205) away from the limit shaft (204), and an electromagnet (207) is provided on the outer surface of the connecting plate (206).

2. The offshore wind turbine monopile weld flaw detection equipment according to claim 1, characterized in that, The wall-climbing machine (1) is provided with an installation component (3) for installation on its upper side. The installation component (3) includes a snap-fit ​​installation groove (301), a flaw detector body (302), and a fixing frame (303). The snap-fit ​​installation groove (301) is located on the upper side of the wall-climbing machine (1).

3. The offshore wind turbine monopile weld flaw detection equipment according to claim 2, characterized in that, The flaw detector body (302) is engaged and connected to the inner side of the snap-fit ​​mounting groove (301), and a fixing frame (303) is provided on the outer side of the flaw detector body (302).

4. The offshore wind turbine monopile weld flaw detection equipment according to claim 3, characterized in that, The mounting component (3) also includes a threaded mounting hole (304) and a mounting bolt (305), and the surface of the fixing frame (303) and the upper surface of the snap-fit ​​mounting groove (301) are provided with threaded mounting holes (304), and the mounting bolt (305) is threadedly connected to the inside of the threaded mounting hole (304).

5. The offshore wind turbine monopile weld flaw detection equipment according to claim 4, characterized in that, The flaw detector body (302) is equipped with a support cover (4) on the upper side, and a stepper motor (5) is installed inside the support cover (4). The output end of the stepper motor (5) is connected to a connecting support frame (6) through a coupling.

6. The offshore wind turbine monopile weld flaw detection equipment according to claim 5, characterized in that, A hydraulic push rod (7) is installed on the upper side of the end of the connecting support frame (6) away from the support cover (4), and a flaw detector probe (8) is provided at the bottom of the hydraulic push rod (7).

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