Offshore wind power tower tube hoisting and turning-over equipment

Abstract

The utility model relates to the technical field of wind power equipment installation, and discloses an offshore wind power tower tube hoisting and turning-over device which comprises a base, a supporting column is fixedly connected to the top of the base, a connecting block is fixedly connected to the top of the supporting column, a tower tube is arranged on the top of the base, and an installation flange is fixedly connected to the interior of the tower tube. A turnover mechanism is arranged at the top of the base, and a traction mechanism is arranged in the tower drum; the turnover mechanism comprises a rotating seat and a threaded pin, the side wall of the rotating seat is rotationally connected between the connecting blocks, the tower drum is arranged in the rotating seat, a through hole is formed in the side wall of the rotating seat, the side wall of the rotating seat is fixedly connected with a rotating block, and the side wall of the rotating block is rotationally connected with a fixing plate. According to the tower drum overturning device, the rotating base and the threaded pin are matched with each other, the rotating base provides a rotating foundation, the threaded pin achieves the fixing and unlocking functions, the tower drum is overturned more stably, and the smoothness of the overturning process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment installation technology, and in particular to a lifting and turning device for offshore wind turbine towers. Background Technology

[0002] Offshore wind turbine towers are key structural components supporting offshore wind turbine generators, characterized by their height, weight, and slender cylindrical shape. During offshore wind turbine installation, the towers need to be converted from a horizontal transport state to a vertical lifting state; this "lifting and turning" process directly affects installation efficiency and construction safety. Traditional lifting and turning methods rely on multiple cranes and manual operation, which presents problems such as high coordination difficulty, long time consumption, and high safety risks, especially in complex offshore conditions, where the stability and reliability of the equipment are even more critical. Therefore, specialized equipment for lifting and turning offshore wind turbine towers has emerged. This equipment integrates advanced lifting, transmission, and control technologies, and features a carefully designed stable and reliable structure, aiming to achieve efficient, smooth, and safe tower lifting and turning processes, reduce construction risks, improve operational efficiency, and promote the high-quality development of the offshore wind power industry.

[0003] Specialized equipment for lifting and turning offshore wind turbine towers has been developed and manufactured. This equipment integrates lifting machinery, rotating mechanisms, and clamping devices to achieve safe and efficient tower turning from horizontal to vertical. Its manufacturing must consider wind and earthquake resistance, load-bearing capacity, and ease of operation for offshore operations to meet the needs of large-scale offshore wind power installations. In traditional offshore tower turning methods, two cranes are used to suspend the tower at both ends, with one crane lifting it and turning it in mid-air. Due to the unpredictable marine environment, significant swaying is likely in windy and wavering weather, making the operation highly dangerous and compromising the safety of workers and equipment. Therefore, a new offshore wind turbine tower lifting and turning device has been proposed to address these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an offshore wind turbine tower lifting and turning device, which aims to improve the problems of easy swaying and uneven force distribution when turning at sea in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lifting and turning device for offshore wind turbine towers includes a base, a support column fixedly connected to the top of the base, a connecting block fixedly connected to the top of the support column, a tower on the top of the base, an installation flange fixedly connected inside the tower, a turning mechanism on the top of the base, and a traction mechanism inside the tower. The turning mechanism includes a rotating seat and a threaded pin. The side wall of the rotating seat is rotatably connected between the connecting blocks. The tower is located inside the rotating seat. A through hole is opened on the side wall of the rotating seat. A rotating block is fixedly connected to the side wall of the rotating seat. A fixing plate is rotatably connected to the side wall of the rotating block. The side wall of the fixing plate fits against the through hole. The side wall of the threaded pin is threadedly connected to the inside of the fixing plate. The threaded pin passes through the through hole and is slidably connected inside the installation flange.

[0007] As a further description of the above technical solution:

[0008] The traction mechanism includes a traction plate, which is disposed inside a sleeve. A connecting column is fixedly connected to the side wall of the traction plate, and a sleeve is provided on the side wall of the connecting column. A fixing column is fixedly connected to the side wall of the traction plate.

[0009] As a further description of the above technical solution:

[0010] An auxiliary support column is fixedly connected to the top of the base, and the upper surface of the auxiliary support column is fixedly connected to the side wall of the connecting block.

[0011] As a further description of the above technical solution:

[0012] A rotating seat is fixedly connected to the side wall of the threaded pin.

[0013] As a further description of the above technical solution:

[0014] The traction plate is X-shaped, and the fixing columns are located at the four ends of the traction plate. The side walls of the fixing columns are slidably connected inside the mounting flange.

[0015] As a further description of the above technical solution:

[0016] A support base is provided on one side of the base, and one end of the tower is located on top of the support base.

[0017] As a further description of the above technical solution:

[0018] A traction ring is provided inside the sleeve.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the tower is fixed inside the rotating seat by a threaded pin, and the other end is lifted by a traction plate, which achieves stable completion of the tower rotation. This solves the problem that traditional rotation devices use two cranes to rotate the tower in the air, which is dangerous due to insufficient stability at sea. This improves the stability of the equipment.

[0021] 2. In this utility model, the X-shaped traction plate has its four fixed columns inserted into the mounting flange, which achieves a more stable lifting of the tower. This solves the problems of uneven force distribution, instability during lifting, and swaying at sea that are common with traditional lifting devices, thus improving the accuracy of the traction action. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a lifting and turning device for offshore wind turbine towers proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the rotating seat of a lifting and turning device for offshore wind turbine towers proposed in this utility model;

[0024] Figure 3 This is a structural schematic diagram of the overturning mechanism of an offshore wind turbine tower lifting and overturning device proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the traction mechanism of a lifting and turning device for offshore wind turbine towers proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the traction plate of a lifting and turning device for offshore wind turbine towers proposed in this utility model.

[0027] Legend:

[0028] 1. Base; 2. Support column; 3. Auxiliary support column; 4. Support seat; 5. Rotating seat; 6. Tower; 7. Mounting flange; 8. Connecting block; 9. Threaded pin; 10. Rotating seat; 11. Rotating block; 12. Through hole; 13. Fixing plate; 14. Traction plate; 15. Sleeve; 16. Traction ring; 17. Fixing column; 18. Connecting column. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-3 This utility model provides an embodiment of a lifting and turning device for offshore wind turbine towers, comprising a base 1, a support column 2 fixedly connected to the top of the base 1, a connecting block 8 fixedly connected to the top of the support column 2, a tower 6 mounted on the top of the base 1, an installation flange 7 fixedly connected inside the tower 6, a turning mechanism mounted on the top of the base 1, and a traction mechanism mounted inside the tower 6. The turning mechanism includes a rotating seat 5 and a threaded pin 9. The side wall of the rotating seat 5 is rotatably connected to the connecting block 8, allowing the rotating seat 5 to rotate flexibly around the connecting block 8 as a fulcrum, providing the necessary rotational freedom for the turning of the tower 6 and ensuring the smoothness of the turning process. The tower 6 is located inside the rotating seat 5. A through hole 12 is opened on the side wall of the rotating seat 5, and a rotating block 11 is fixedly connected to the side wall of the rotating seat 5. A fixing plate 13 is rotatably connected to the side wall of the rotating block 11, providing a rotational fulcrum for the fixing plate 13, allowing the fixing plate 13 to rotate around the rotating block 11, facilitating the adjustment of the fixing plate. The fixed plate 13 is positioned such that its sidewall fits into the through hole 12. The threaded pin 9 is threaded into the inside of the fixed plate 13 and slides through the through hole 12 into the mounting flange 7. This fitting design ensures that the fixed plate 13 can accurately guide the threaded pin 9 through the through hole 12, allowing the threaded pin 9 to connect smoothly with the mounting flange 7, ensuring the accuracy and stability of the connection. An auxiliary support column 3 is fixedly connected to the top of the base 1, and auxiliary support columns 3 are fixedly connected to both sides of the connecting block 8. The auxiliary support columns 3 increase the support strength and stability of the base 1 and can effectively distribute and bear the weight and force from the rotating seat 5 and the tower 6 during the rotation of the tower 6. A rotating seat 10 is fixedly connected to the sidewall of the threaded pin 9. A support seat 4 is provided on one side of the base 1, and one end of the tower 6 is located on the top of the support seat 4. The support seat 4 provides a support point for one end of the tower 6, which can stably support the tower 6, share the weight of the tower 6, and reduce the force on the rotating seat 5 and other components.

[0031] Reference Figure 1 , Figure 4 and Figure 5The traction mechanism includes a traction plate 14, which is disposed inside the tower 6. A connecting column 18 is fixedly connected to the side wall of the traction plate 14, and a sleeve 15 is provided on the side wall of the connecting column 18. The connecting column is used to connect the traction plate 14 to other components, transmitting the movement of the traction plate 14 to other related structures, realizing linkage between multiple components, and enhancing the function and applicability of the traction mechanism. A fixing column 17 is fixedly connected to the side wall of the traction plate 14. The traction plate 14 is X-shaped, and the fixing columns 17 are located at the four ends of the traction plate 14, keeping the connecting column 18 stationary during movement. Stability is ensured, reducing swaying and offset, and ensuring that the connecting column 18 can accurately transmit the force of the traction plate 14, thereby improving traction efficiency. The X-shaped design gives the traction plate 14 better structural stability and mechanical properties, and can evenly distribute the traction force, avoiding damage caused by excessive local stress. The side wall of the fixed column 17 is slidably connected inside the mounting flange 7. The sleeve 15 is provided with a traction ring 16, which provides a point of application for traction force. It can be connected to an external traction device to transmit the external traction force to the sleeve 15 and the traction plate 14.

[0032] Working principle: First, adjust the position of the fixed plate 13 by moving the rotating block 11 so that the threaded pin 9 can pass through the through hole 12 and align with the mounting flange 7 on the tower 6. After alignment, rotate the rotating seat 10 so that the threaded pin 9 enters the mounting flange 7, and the tower 6 can be fixed on the rotating seat 5 without shaking. At this time, connect the crane to the traction ring 16. After lifting, the traction ring 16 drives the sleeve 15 to move, the sleeve 15 drives the connecting column 18 to move, and the connecting columns 18 on both sides pull the traction plate 14 to move. The fixed column 17 on the traction plate 14 is inserted into the hole of the mounting flange 7 on the tower 6, and one end of the tower 6 is pulled upward. At this time, the other end of the tower 6 is placed in the rotating seat 5. The rotating seat 5 is subjected to the force of the tower 6 and begins to tilt to one side through the connecting block 8. The force on the connecting block 8 will be jointly borne by the support column 2 and the auxiliary support column 3, and the bottom base 1 increases the force-bearing area to reduce shaking until the tower 6 is flipped over by the traction plate 14.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting and turning device for offshore wind turbine towers, comprising a base (1), characterized in that: The base (1) is fixedly connected to a support column (2), the support column (2) is fixedly connected to a connecting block (8), the base (1) is provided with a tower (6), the tower (6) is fixedly connected to a mounting flange (7), the base (1) is provided with a flipping mechanism, and the tower (6) is provided with a traction mechanism. The flipping mechanism includes a rotating seat (5) and a threaded pin (9). The side wall of the rotating seat (5) is rotatably connected between the connecting blocks (8). The tower (6) is located inside the rotating seat (5). The side wall of the rotating seat (5) has a through hole (12). The side wall of the rotating seat (5) is fixedly connected to a rotating block (11). The side wall of the rotating block (11) is rotatably connected to a fixing plate (13). The side wall of the fixing plate (13) is in contact with the through hole (12). The side wall of the threaded pin (9) is threadedly connected inside the fixing plate (13). The threaded pin (9) passes through the through hole (12) and is slidably connected inside the mounting flange (7).

2. The offshore wind turbine tower lifting and turning equipment according to claim 1, characterized in that: The traction mechanism includes a traction plate (14), which is located inside the tower (6). A connecting column (18) is fixedly connected to the side wall of the traction plate (14). A sleeve (15) is provided on the side wall of the connecting column (18). A fixing column (17) is fixedly connected to the side wall of the traction plate (14).

3. The offshore wind turbine tower lifting and turning equipment according to claim 1, characterized in that: The base (1) is fixedly connected to the top of an auxiliary support column (3), and the upper surface of the auxiliary support column (3) is fixedly connected to the side wall of the connecting block (8).

4. The offshore wind turbine tower lifting and turning equipment according to claim 1, characterized in that: The threaded pin (9) is fixedly connected to the side wall of the rotating seat (10).

5. The offshore wind turbine tower lifting and turning equipment according to claim 2, characterized in that: The traction plate (14) is X-shaped, and the fixing column (17) is located at the four ends of the traction plate (14). The side wall of the fixing column (17) is slidably connected inside the mounting flange (7).

6. The offshore wind turbine tower lifting and turning device according to claim 1, characterized in that: A support seat (4) is provided on one side of the base (1), and one end of the tower (6) is provided on the top of the support seat (4).

7. The offshore wind turbine tower lifting and turning equipment according to claim 2, characterized in that: The sleeve (15) is provided with a traction ring (16).

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