Horizontal installation tool for single-pile foundation air-tight platform

Abstract

This utility model relates to a horizontal installation fixture for an airtight platform for a monopile foundation. It includes a load-bearing main body with several connecting columns at its rear end. Each connecting column is perpendicular to the rear end face of the load-bearing main body, and each column has a butt joint at its end, which connects to a telescopic boom crane. Extending arms extending circumferentially are fixed to the sides of the load-bearing main body, lying in the same plane as the load-bearing main body. Fixed arms are located at the front ends of the extending arms, perpendicular to the front end face of the load-bearing main body, and each fixed arm has a clamping assembly at its end. In use, the rear end of the fixture is installed on the telescopic boom crane via the butt joints, and the front end of the fixture clamps and secures the airtight platform via the clamping assemblies. The telescopic boom crane uses this fixture to horizontally push the airtight platform into the monopile foundation. After welding and securing the airtight platform, the clamping assemblies are released, and the fixture is removed. This fixture is compatible with the horizontal inward-pushing construction method of the airtight platform using a telescopic boom crane, improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of land construction of wind power monopile foundations, and in particular to a horizontal installation tooling for an airtight platform for monopile foundations. Background Technology

[0002] In the European offshore wind power sector, monopile foundations have become one of the most widely used foundation types for offshore wind turbines due to their mature technology and good applicability. This foundation structure integrates multiple functional platforms, such as bolt platforms, inlet platforms, cable platforms, and airtight platforms. The airtight platform, as a core component ensuring the sealing and structural integrity of the monopile foundation, plays an indispensable role in offshore wind power projects.

[0003] The land-based construction and installation process of airtight platforms mainly falls into two technical routes: vertical hoisting and horizontal inward pushing. 1) Vertical hoisting of the airtight platform: Because the overall size of the airtight platform exceeds the inner diameter of the top flange, the monopile foundation must be lifted as a whole above the airtight platform and then inserted into the monopile cylinder from the bottom of the flange. This construction process places extremely high demands on the lifting capacity of the hoisting equipment. Not only does it require large cranes with excellent ultimate lifting performance, but the monopile foundation also needs to be lifted to a considerable height, significantly increasing the operational difficulty and safety risks. In site environments where multiple projects are implemented concurrently, large crane resources meeting such hoisting requirements are extremely scarce, making it difficult to simultaneously ensure the installation progress of multiple monopile foundation airtight platforms, becoming a major bottleneck restricting project progress efficiency. 2) Horizontal inward pushing of the airtight platform: Horizontal construction facilitates worker operation and inspection, while also reducing the risks of high-altitude operations. Using specially designed horizontal construction and installation fixtures, only a 150T telescopic boom crane is needed to complete the insertion operation of the airtight platform into the cylinder. This telescopic boom crane features flexible adjustment capabilities, allowing for free adjustment of the boom length and operating angle according to the actual space conditions and operational requirements of the construction site. This enables efficient and precise lifting operations even in confined construction areas. This technology not only effectively reduces reliance on large lifting equipment but also significantly improves construction safety and flexibility, providing a more feasible technical solution for the large-scale construction of offshore wind power monopile foundations. However, currently, there is a lack of tooling suitable for horizontal inward pushing (horizontal installation) of airtight platforms. Utility Model Content

[0004] To overcome the above problems, this utility model provides a horizontal installation fixture for a monopile foundation airtight platform. The technical solution adopted by this utility model to solve its technical problems is as follows: A horizontal installation fixture for a monopile foundation airtight platform includes a load-bearing body. Several connecting columns are provided at the rear end of the load-bearing body, each column being perpendicular to the rear end face of the load-bearing body. Each connecting column has a butt joint at its end, which connects to a telescopic boom crane. Extending arms extending circumferentially are fixed to the sides of the load-bearing body. These extending arms are located in the same plane as the load-bearing body. Fixed arms are provided at the front ends of the extending arms, each fixed arm being perpendicular to the front end face of the load-bearing body. Clamping components are provided at the ends of the fixed arms.

[0005] Furthermore, the main load-bearing structure is a square frame structure welded and fixed with steel pipes.

[0006] Furthermore, the sidewalls of the extension arm and the load-bearing body are connected and fixed at an angle, with the angle being greater than or equal to 30° and less than or equal to 90°.

[0007] Furthermore, the clamping assembly includes a U-shaped chuck, with fixing holes provided on both opposite clamping arms of the U-shaped chuck. Fastening threads are provided in the fixing holes, and fastening screws are inserted into the fixing holes from the outside of the clamping arms and tightened / released in the fixing holes.

[0008] Furthermore, the clamping assembly includes a U-shaped chuck, with fixing holes provided on both opposite clamping arms of the U-shaped chuck. Fixing nuts are welded and fixed on the inner side of each clamping arm. The fixing nuts and fixing holes are coaxial. Fastening screws are inserted sequentially from the outside of the clamping arms into the fixing holes and fastening nuts, and are tightened / loosened inside the fastening nuts.

[0009] Furthermore, a reinforcing pad is provided between the end of the mating column and the joint.

[0010] The beneficial effects of this utility model are as follows: This fixture includes a load-bearing main body with several connecting columns at its rear end. These columns are perpendicular to the rear face of the load-bearing main body, and each column has a butt joint at its end, which connects to a telescopic boom crane. Extending arms extending circumferentially are fixed to the sides of the load-bearing main body, lying in the same plane as the load-bearing main body. Fixed arms are located at the front ends of the extending arms, perpendicular to the front face of the load-bearing main body, and each fixed arm has a clamping assembly at its end. In use, the rear end of the fixture is installed on the telescopic boom crane via the butt joints, and the front end of the fixture clamps and secures the airtight platform. The telescopic boom crane uses this fixture to deliver the airtight platform to the installation position, then pushes the airtight platform horizontally into the monopile foundation. After welding and securing the airtight platform, the clamping assemblies are released, and the fixture is removed. This fixture is compatible with the horizontal inward-pushing construction method of the airtight platform using a telescopic boom crane, improving construction efficiency. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, wherein: Figure 1This is a three-dimensional view of the tooling.

[0012] Drawing number markings: 100, load-bearing main body; 101, connecting column; 102, connecting joint; 103, extension arm; 104, fixing arm; 105, U-shaped clamp; 106, fixing hole; 107, reinforcing pad. Detailed Implementation

[0013] To better understand the purpose, structure, and function of this utility model, the following detailed description of a specific embodiment of the utility model "a horizontal installation fixture for a single-pile foundation airtight platform" is provided in conjunction with the accompanying drawings.

[0014] See Figure 1 In this embodiment, the horizontal installation fixture for the monopile foundation airtight platform includes a load-bearing body 100. Several connecting columns 101 are welded and fixed to the rear end of the load-bearing body 100. The connecting columns 101 are all welded perpendicular to the rear end face of the load-bearing body 100 to improve the welding strength. The ends of the connecting columns 101 are all welded and fixed with joints 102, which can be connected with telescopic boom cranes. Extension arms 103 extending circumferentially are welded and fixed to the sides of the load-bearing body 100. The extension arms 103 and the load-bearing body 100 are located in the same plane. Fixed arms 104 are welded and fixed to the front end of the extension arms 103. The fixed arms 104 are all welded perpendicular to the front end face of the load-bearing body 100 to improve the welding strength. The ends of the fixed arms 104 are all welded and fixed with clamping components, which can clamp and fix the airtight platform. When using this fixture, it is first connected to the telescopic boom crane via connector 102 for installation. Then, the airtight platform is clamped and secured using the clamping assembly. The telescopic boom crane then uses this fixture to move the airtight assembly to the outside of the monopile foundation and push it into the foundation. Once the airtight platform is fixed within the foundation, the clamping assembly is released, and the fixture is removed. During use, the airtight platform is like a bottle without handles; this fixture acts as a temporary handle, allowing the telescopic boom crane to lift the platform horizontally into the monopile foundation. It should be noted that this fixture is compatible with the horizontal inward-pushing construction method of the telescopic boom crane's airtight platform, improving construction efficiency. Furthermore, the extension arm 103 effectively extends the clamping distance of the clamping assembly, allowing this fixture to accommodate airtight platforms of different sizes.

[0015] More specifically, in this embodiment, the load-bearing body 100 is a square frame structure welded and fixed with steel pipes, which reduces the weight of the load-bearing body 100 and reduces energy consumption during the hoisting process.

[0016] Furthermore, in this embodiment, a reinforcing pad 107 is provided between the end of the docking post 101 and the mating joint 102. The reinforcing pad 107 is welded and fixed to the end of the docking post 101, and then the mating joint 102 is welded and fixed to the reinforcing pad 107. Both welding surfaces of the reinforcing pad 107 are flat, which makes the welding stability of the pad and the end of the docking post 101 and the mating joint 102 better and the welding strength better, which can effectively improve the connection strength between the mating joint 102 and the end of the docking post 101.

[0017] Furthermore, in this embodiment, the sidewalls of the extension arm 103 and the load-bearing body 100 are welded together at an angle of 30° or greater and 90° or less. This ensures that the clamping assembly can be adapted to airtight platforms of different shapes, further improving the applicability of this tooling.

[0018] Furthermore, in this embodiment, the clamping assembly includes a U-shaped chuck 105. Each of the two opposing clamping arms of the U-shaped chuck 105 is provided with a fixing hole 106. The fixing hole 106 is provided with a fastening thread. The fastening screw passes through the fixing hole 106 from the outside of the clamping arm and is tightened / unscrewed in the fixing hole 106 so as to adjust the clamping of the platform wall of the airtight platform with different thicknesses.

[0019] Of course, in other embodiments, the clamping assembly includes a U-shaped chuck 105. Each of the two opposing clamping arms of the U-shaped chuck 105 is provided with a fixing hole 106. A fixing nut is welded and fixed to the inner side of each clamping arm. The fixing nut and the fixing hole 106 are coaxial. The fastening screw passes through the fixing hole 106 and the fastening nut sequentially from the outside of the clamping arm and is tightened / loosened in the fastening nut. This can avoid the problem that the entire U-shaped chuck must be replaced if the thread in the fixing hole 106 is damaged. Only the fixing nut needs to be replaced.

[0020] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In the description of this application, "multiple" and "several" are understood as "at least two." "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can indicate three situations: A exists alone, A and B exist simultaneously, and B exists alone. A and B are connected, which can indicate two situations: A and B are directly connected and A and B are connected through C. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A horizontal installation fixture for a monopile foundation airtight platform, characterized in that, The system includes a load-bearing body (100), with a plurality of docking columns (101) at the rear end of the load-bearing body (100). Each docking column (101) is perpendicular to the rear end face of the load-bearing body (100), and each docking column (101) has a connecting joint (102) at its end, which is connected to a telescopic boom crane. Each side of the load-bearing body (100) is fixed with an extension arm (103) extending circumferentially. The extension arm (103) and the load-bearing body (100) are located in the same plane. Each extension arm (103) has a fixed arm (104) at its front end, which is perpendicular to the front end face of the load-bearing body (100). Each fixed arm (104) has a clamping assembly at its end.

2. The horizontal installation fixture for a monopile foundation airtight platform according to claim 1, characterized in that, The load-bearing main body (100) is a square frame structure welded and fixed with steel pipes.

3. The horizontal installation fixture for a monopile foundation airtight platform according to claim 1, characterized in that, The extension arm (103) and the side wall of the load-bearing body (100) are connected and fixed at an angle, the angle being greater than or equal to 30° and less than or equal to 90°.

4. The horizontal installation fixture for a monopile foundation airtight platform according to claim 1, characterized in that, The clamping assembly includes a U-shaped chuck (105), and each of the two opposite clamping arms of the U-shaped chuck (105) is provided with a fixing hole (106). The fixing hole (106) is provided with a fastening thread, and the fastening screw passes through the fixing hole (106) from the outside of the clamping arm and is tightened / loosened in the fixing hole (106).

5. The horizontal installation fixture for a monopile foundation airtight platform according to claim 1, characterized in that, The clamping assembly includes a U-shaped chuck (105). Each of the two opposing clamping arms of the U-shaped chuck (105) is provided with a fixing hole (106). A fixing nut is welded and fixed to the inner side of each clamping arm. The fixing nut and the fixing hole (106) are coaxial. The fastening screw passes through the fixing hole (106) and the fastening nut sequentially from the outside of the clamping arm and is tightened / loosened in the fastening nut.

6. The horizontal installation fixture for a monopile foundation airtight platform according to claim 1, characterized in that, A reinforcing pad (107) is provided between the end of the docking post (101) and the docking joint (102).

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