Mobile repair platform for laser forging composite arc repair of offshore wind turbine tower

Abstract

The utility model discloses a mobile repairing platform for laser forging composite arc repairing of an offshore wind turbine tower. The mobile repairing platform comprises a shell, the inner wall of the shell is connected with a plurality of sets of teeth, the shell is rotationally connected with a platform, the platform is provided with a plurality of sets of grooves, a bolt is inserted in one set of grooves, and the bolt is in threaded connection with a rod body. By means of meshing transmission of the teeth and the gear, when the bolt is held by hand to drive the rod body and the round rod to rotate the gear, the platform can rotate at the position of the shell, then the platform can be fixed and stop rotating by means of the fact that the bolt is mixed into the multiple sets of grooves, and a worker standing on the platform can change the direction by himself / herself. And multiple faces of the offshore wind turbine tower drum can be conveniently repaired, the placement direction does not need to be changed by moving an external engineering ship on the sea surface, the influence of the sea on shaking of the engineering ship is reduced, and then the repairing work difficulty of workers on the platform is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of offshore wind turbine tower repair, and in particular to a mobile repair platform for laser forging composite arc repair of offshore wind turbine towers. Background Technology

[0002] During long-term operation, offshore wind turbines are susceptible to surface damage, corrosion pits, and weld cracks due to various factors such as seawater spray, salt spray corrosion, strong wind abrasion, and complex marine climate. These issues seriously threaten the structural safety and operational stability of the turbines. Traditional repair methods, such as manual grinding and welding, suffer from low efficiency, inconsistent repair quality, high labor intensity, and difficulty adapting to the harsh marine environment. Laser forging composite arc repair technology offers advantages such as low heat input, minimal deformation, and high-performance repair layers. However, to facilitate efficient repair operations, a specialized mobile repair platform is required. While existing platforms allow workers to perform repairs at different heights on the offshore wind turbine tower, multi-faceted repairs often require the use of external engineering vessels. The instability of these vessels on the sea surface further complicates the work for the workers on the repair platform. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a mobile repair platform for laser forging composite arc repair of offshore wind turbine towers.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mobile repair platform for laser forging composite arc repair of offshore wind turbine towers includes a shell, with multiple sets of teeth connected to the inner wall of the shell. A platform is rotatably connected to the shell, and multiple sets of grooves are formed on the platform. A bolt is inserted into one of the grooves, and a rod is threadedly connected to the bolt. A round rod is connected to the rod, and the round rod is rotatably connected to the platform. The round rod is connected to a gear.

[0006] Preferably, the platform has multiple sets of threaded holes.

[0007] Preferably, the housing is connected to multiple sets of lifting rings.

[0008] Preferably, multiple sets of first ball bearings are rotatably connected inside the housing, and all sets of first ball bearings are in contact with the platform.

[0009] Preferably, an annular opening is provided at the center of the housing, and multiple sets of second ball bearings are movably connected to the annular opening.

[0010] Preferably, one end of the bolt is covered with an anti-slip sleeve.

[0011] Preferably, the multiple sets of threaded holes are distributed at equal intervals in pairs.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. Through the cooperation between the shell, teeth, gears, round rod, platform, rod body, grooves and bolts, the meshing transmission of the teeth and gears allows the hand-held bolts to drive the rod body and round rod to rotate the gears, thus rotating the platform at the shell. Then, by placing the bolts into multiple sets of grooves, the platform will be fixed and stop rotating. The workers standing on the platform can change their position by themselves, which is convenient for repairing multiple sides of the offshore wind turbine tower. There is no need for the external engineering vessel to move on the sea surface to change the placement orientation, reducing the impact of the ocean on the swaying of the engineering vessel, and thus reducing the difficulty of the repair work for the workers on the platform.

[0014] 2. By using the platform and threaded holes to fit together, and by utilizing the distribution of threaded holes on the platform, repair equipment such as laser generators, arc welding machines, wire feeding mechanisms, and forging devices can be laid out and installed according to the actual repair equipment installation requirements. At the same time, external railings can also be installed on the platform using threaded connections, increasing work safety and making it relatively flexible to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a mobile repair platform for laser forging composite electric arc repair of offshore wind turbine towers proposed in this utility model;

[0016] Figure 2 for Figure 1 Structural diagram of the central rod, groove, and bolt;

[0017] Figure 3 for Figure 1 Schematic diagram of the middle shell structure;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the middle shell, teeth, and gears;

[0019] Figure 5 for Figure 3 A schematic diagram of the structure of the middle shell, the first ball bearing, and the second ball bearing.

[0020] In the diagram: 1. Housing; 2. Tooth; 3. Gear; 4. Round rod; 5. Platform; 6. Rod body; 7. Groove; 8. Bolt; 9. Threaded hole; 10. First ball bearing; 11. Second ball bearing; 12. Lifting ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figures 1 to 5 A mobile repair platform for laser forging composite arc repair of offshore wind turbine towers includes a shell 1. Multiple sets of teeth 2 are connected to the inner wall of the shell 1. A platform 5 is rotatably connected to the shell 1. Both the shell 1 and platform 5 are made of high-strength, corrosion-resistant alloy materials, possessing sufficient rigidity and stability to withstand the erosion of the harsh marine environment and the stress generated during platform 5 rotation and equipment support. The multiple sets of teeth 2 on the inner wall of the shell 1 are evenly distributed, and their shape and size are precisely designed to ensure stable and efficient meshing transmission with gears 3. The surface of the teeth 2 undergoes special treatment, such as quenching, to improve their wear resistance, ensuring that transmission performance does not decline during long-term use. Multiple sets of grooves 7 are formed on the platform 5. Bolts 8 are inserted into one set of grooves 7, and rods 6 are threadedly connected to the bolts 8. Round rods 4 are connected to the rods 6, rotatably connected to the platform 5, and connected to gears 3. The platform 5 has a circular structure, and its diameter is designed according to actual needs to provide sufficient working area. Multiple sets of grooves 7 are arranged in a ring on platform 5. The depth and width of the grooves 7 match the bolts 8, ensuring that the bolts 8 can firmly fix the platform 5 in position after insertion. The spacing between the grooves 7 is reasonable, allowing the platform 5 to be easily fixed at different rotation angles. The surface of platform 5 is treated with anti-slip materials, such as laying anti-slip patterns or attaching anti-slip materials, to prevent workers from slipping on platform 5 and ensure operational safety. With the adjustable rotation of platform 5, workers and equipment can rotate with platform 5 to perform multi-faceted repair work.

[0023] In this embodiment, multiple sets of threaded holes 9 are provided at platform 5. These holes can be used not only to install repair equipment such as laser generators, arc welding machines, wire feeding mechanisms, and forging devices, but also to install auxiliary facilities such as lighting equipment, ventilation equipment, and guardrails as needed. The threaded holes 9 are of uniform specifications, facilitating the installation and fixing of equipment using standard bolts, thus improving the versatility and convenience of equipment installation. Multiple sets of lifting rings 12 are connected to the housing 1. The lifting rings 12 are made of high-strength alloy steel and have sufficient load-bearing capacity. The shape of the lifting ring 12 is designed to facilitate connection with the hook of the lifting equipment. During the installation, lifting and moving of the platform 5, it ensures that the shell 1 and the platform 5 can be lifted smoothly without shaking or falling off. There are multiple sets of first ball bearings 10 rotatably connected inside the shell 1. The first ball bearings 10 are used to support the platform 5 and improve the smoothness of the platform 5's rotation. All sets of first ball bearings 10 are in contact with the platform 5. An annular opening is provided at the center of the shell 1. Multiple sets of second ball bearings 11 are movably connected at the annular opening. The second ball bearings 11 are used to contact the outer wall of the offshore wind turbine tower to reduce frictional damage between the shell 1 and the offshore wind turbine tower. One end of the bolt 8 is wrapped with an anti-slip sleeve. The anti-slip sleeve is made of rubber material with raised texture on the surface to increase the friction between the hand and the bolt 8, making it easier for the operator to operate. Multiple sets of threaded holes 9 are distributed in pairs at equal intervals. Considering the high corrosiveness of the marine environment, all metal parts of the entire mobile repair platform 5 are made of corrosion-resistant materials or have undergone anti-corrosion treatment. Components directly exposed to sea winds, such as the shell 1, bolts 8, and lifting rings 12, are coated with multiple layers of anti-corrosion paint, providing excellent resistance to salt spray and seawater immersion. Transmission components, such as gears 2, gears 3, the first ball bearing 10, and the second ball bearing 11, are made of a special corrosion-resistant alloy and undergo passivation treatment during manufacturing to form a dense oxide film. This prevents seawater and salt spray from corroding the metal, ensuring stable transmission performance and unaffected structural strength of the platform 5 during long-term use.

[0024] The working principle of this embodiment is as follows: During use, the shell 1 can be placed on the outer wall of the offshore wind turbine tower during the initial construction of the tower. When repair operations are required, the multiple sets of threaded holes 9 on the platform 5 can be used to install external guardrails, laser generators, arc welding machines, wire feeding mechanisms, forging devices, and other repair equipment according to the actual repair requirements. After installation, the shell 1 can be lifted by an external engineering vessel using hoisting equipment. After moving to a specified height, the meshing of gear 3 and teeth 2 allows the rotation of the rod 4 via the rod 6 to drive the platform 5 to rotate at the shell 1. In this way, the platform 5 can rotate on its own, facilitating the change of the orientation of multiple devices and enabling workers to easily perform multi-faceted repair operations on the offshore wind turbine tower.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile repair platform for laser forging composite arc repair of offshore wind turbine towers, comprising a shell (1), characterized in that, The inner wall of the housing (1) is connected to multiple sets of teeth (2). The housing (1) is rotatably connected to a platform (5). Multiple sets of grooves (7) are opened at the platform (5). A bolt (8) is inserted at one set of the grooves (7). A rod (6) is threadedly connected to the bolt (8). A round rod (4) is connected to the rod (6). The round rod (4) is rotatably connected to the platform (5). The round rod (4) is connected to the gear (3).

2. The mobile repair platform for laser forging composite arc repair of offshore wind turbine towers according to claim 1, characterized in that, Multiple sets of threaded holes (9) are provided at the platform (5).

3. The mobile repair platform for laser forging composite arc repair of offshore wind turbine towers according to claim 1, characterized in that, Multiple sets of lifting rings (12) are connected to the housing (1).

4. The mobile repair platform for laser forging composite arc repair of offshore wind turbine towers according to claim 1, characterized in that, Multiple sets of first ball bearings (10) are rotatably connected inside the housing (1), and all sets of first ball bearings (10) are in contact with the platform (5).

5. A mobile repair platform for laser forging composite arc repair of offshore wind turbine towers according to claim 1, characterized in that, An annular opening is provided at the center of the housing (1), and multiple sets of second ball bearings (11) are movably connected to the annular opening.

6. A mobile repair platform for laser forging composite arc repair of offshore wind turbine towers according to claim 1, characterized in that, One end of the bolt (8) is covered with an anti-slip sleeve.

7. A mobile repair platform for laser forging composite arc repair of offshore wind turbine towers according to claim 2, characterized in that, The multiple sets of threaded holes (9) are distributed equidistantly in pairs.

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