A pile turning device for pile sinking of an offshore wind power foundation pile

Abstract

The utility model relates to offshore foundation pile field especially offshore wind power foundation pile sinking pile is with turning over pile equipment, including box, clamping arm and collection tank, one side of box is equipped with the mounting groove, the symmetrical distribution clamping arm is rotatably installed in the inside of mounting groove, the mounting disc is fixed on the box upper end, the inside of mounting disc is equipped with gear one and gear two, gear one and gear two engage, and both sides clamping arm rotates coaxially with gear one and gear two respectively, the inside of one side of box is equipped with the collection tank, and the box is the irregular design of gravity center offset. The device realizes the synchronous centering movement of clamping arm through gear linkage, ensures the clamping stability, and the gravity center offset design combines the water regulation of collection tank, realizes the flexible control of box posture, simplifies the sinking pile operation process, solves the posture adjustment difficulty, the complex operation, the positioning accuracy low problem in the process of the existing underwater foundation pile installation.

Description

Technical Field

[0001] This utility model relates to the field of offshore foundation piles, and in particular to a pile-turning device for driving offshore wind power foundation piles. Background Technology

[0002] Foundation piles are vertical load-bearing components used in building construction to transfer the load of the superstructure to deep, stable soil or rock layers. They are typically made of concrete, steel, or composite materials. In marine engineering (such as offshore wind power and drilling platforms), foundation piles are driven or sunk into the seabed to provide stable support against wind, waves, and overturning. Types include steel pipe piles and prestressed concrete pipe piles, with lengths ranging from tens to hundreds of meters, requiring overcoming challenges such as water erosion and uneven seabed geology. The device described in this patent is designed to meet the needs of precise underwater placement and attitude adjustment of such piles.

[0003] A search revealed that patent publication number CN210559250U discloses a pile lifting and turning device for offshore wind power foundation piles. The device includes a turning frame (1), the middle of which is hinged to the edge of the construction vessel deck via a hinge mechanism (4). Multiple side blocks (2) are arranged along the length of both sides of the turning frame (1), with the inner surface of each side block (2) being a sloping structure. A pad (5) is installed on the deck, and one end of the turning frame (1) rests on this pad (5). A tail hook (3) is installed on the other end of the turning frame (1). This utility model, a pile lifting and turning device for offshore wind power foundation piles, has the advantages of simple structure and good stability.

[0004] While existing technologies can achieve a certain degree of pile flipping effect during use, they suffer from drawbacks such as difficulty in attitude adjustment, complex operation, and low positioning accuracy during the installation of underwater foundation piles. In view of this, we propose a pile flipping device for offshore wind power foundation pile driving, which solves the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a pile-turning device for driving offshore wind power foundation piles.

[0006] The technical solution of this utility model: A pile turning device for driving offshore wind power foundation piles, including a box, clamping arms and a collection trough. The box has an installation groove on one side, and symmetrically distributed clamping arms are rotatably installed inside the installation groove. An installation plate is fixed at the upper end of the box. Gear 1 and Gear 2 are provided inside the installation plate. Gear 1 and Gear 2 mesh. The clamping arms on both sides rotate coaxially with Gear 1 and Gear 2 respectively. A collection trough is provided inside one side of the box. The box has an irregular design with an offset center of gravity.

[0007] When using this device, ropes are independently attached to the upper ends of the output shafts of the linear motors on both sides of the connecting column. Before use, the collection tank is emptied, and the box with the linear motor end facing upwards is placed into the sea (the ropes on both sides at the top ensure the box enters the sea vertically). The probe locates the foundation pile, and once located, the rotating motor drives the counterweight gears one and two to rotate, causing the clamping arms to move simultaneously to clamp the foundation pile. Then, the linear motor retracts to its output end, and the water pump draws seawater into the collection tank. Pulling the rope on the lower connecting column while keeping the other rope stationary causes the box with the foundation pile to gradually level. Continuing to pull the lower rope causes the box to tilt downwards, and with the collection tank fully loaded, it easily maintains a near-vertical position. The foundation pile can then be released, achieving the effect of flipping and driving the pile. This device has a convenient pile driving and flipping function and is highly practical.

[0008] Preferably, a control valve is provided on one side of the box, and a water pump is fixed on the inner wall of the collection tank. The water pump is connected to the control valve. The water pump and the control valve work together to realize the rapid filling and drainage of the collection tank, dynamically adjust the buoyancy and center of gravity of the box, and improve the efficiency of the pile driving.

[0009] Preferably, the box is equipped with probes on the upper and lower sides, which are connected to the central control unit. The probes monitor the position of the underwater pile and the attitude of the box in real time. The central control unit precisely controls the clamping and flipping process, reducing human operation errors.

[0010] Preferably, a rotating motor is fixed on one side of the upper end of the mounting plate. The output shaft of the rotating motor (with waterproof function) is fixedly connected to the rotation center of the upper end of the gear two. The rotating motor drives the gear to mesh and transmit, providing stable torque to ensure that the clamping arms close / open synchronously and avoid pile body displacement.

[0011] Preferably, the surface of the clamping arm is provided with rubber pads arranged in a ring array, and the clamping arm is designed in a semi-arc shape. The semi-arc clamping arm increases the contact area, and the rubber pads are anti-slip and shock-absorbing, protecting the surface of the pile and enhancing the clamping force.

[0012] Preferably, the upper and lower ends of the box are fixed with connecting columns, which facilitate the coordinated traction of multiple ropes to achieve multi-stage attitude control of the box's vertical entry into the sea, horizontal flipping, and vertical pile driving.

[0013] Preferably, a mounting frame is fixed to the upper end of the box, and a linear motor (with waterproof function) is fixed to one side of the mounting frame. The linear motor has an output end on one side, which is inserted into the inner wall of the mounting frame on the other side. The output end of the linear motor is telescopic and adjustable, and can be used with rope traction to precisely control the tilt angle of the box and optimize the pile driving trajectory.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model significantly improves the efficiency and accuracy of pile driving by integrating mechanical transmission, buoyancy adjustment, and intelligent monitoring systems. Traditional pile driving devices rely on large hoisting equipment, are greatly affected by sea waves, and are difficult to control the pile's posture precisely. This utility model adopts a center-of-gravity offset box design, combined with dynamic water filling of the collection tank. The box can be rotated 90° simply by adjusting the rope tension, greatly reducing energy consumption. The gear-driven clamping arm ensures that the pile is centered and fixed, preventing tilting. The application of probes and a central control system allows operators to monitor remotely, reducing the risks of diving operations.

[0016] II. Based on the first beneficial effect, this utility model exhibits significant technical advantages in complex marine environments. In deep-sea foundation construction, after the container is submerged, the pile position can be quickly located using a probe, and the closing error of the clamping arm under gear transmission is less than 2mm. After the collection tank is filled with seawater, the center of gravity of the container shifts by 40%, at which point only single-sided rope traction is needed to trigger the overturning, reducing the time by 60% compared to traditional hydraulic overturning mechanisms. The linear output characteristics of the linear motor avoid pile swaying caused by sudden rope tension, and the verticality deviation of the pile is controlled within 0.5°. This device has been successfully applied to an offshore wind power project, increasing the number of piles driven per day by three times and reducing overall costs by 35%.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a front view schematic diagram of the present invention;

[0020] Figure 3 This is a bottom view of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the B-structure;

[0022] Figure 5 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0023] Figure 6 This is a schematic diagram of the internal structure of the installation disk of this utility model.

[0024] Figure label:

[0025] 1. Housing; 2. Connecting column; 3. Mounting plate; 4. Rotary motor; 5. Clamping arm; 6. Mounting slot; 7. Probe; 8. Control valve; 9. Water pump; 10. Collection tank; 11. Rubber pad; 12. Mounting bracket; 13. Linear motor; 14. Output end; 15. Gear one; 16. Gear two. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] Please see Figures 1-6 As shown, this embodiment is a pile turning device for driving offshore wind power foundation piles, including a box body 1, clamping arms 5 and a collection trough 10. A mounting groove 6 is provided on one side of the box body 1. The clamping arms 5 are symmetrically distributed and rotatably installed inside the mounting groove 6. A mounting plate 3 is fixed at the upper end of the box body 1. Gear 15 and gear 2 16 are provided inside the mounting plate 3. Gear 15 and gear 2 16 mesh. The clamping arms 5 on both sides rotate coaxially with gear 15 and gear 2 16 respectively. A collection trough 10 is provided inside one side of the box body 1. The box body 1 has an irregular design with an offset center of gravity.

[0032] When using this device, ropes are independently attached to the upper ends of the output shafts of the linear motors 13 on both sides of the connecting column 2. Before use, the inside of the collection tank 10 is emptied, and the box 1 with the linear motor 13 facing upward is placed into the sea (the ropes on both sides at the upper end can ensure that the box 1 is placed vertically into the sea). Then, the probe 7 locates the foundation pile. After locating it, the rotating motor 4 drives the counterweight meshing gears 15 and 16 to rotate, causing the clamping arm 5 to move simultaneously to clamp the foundation pile. Then, the linear motor 13 retracts to its output end 14, and the water pump 9 draws seawater into the collection tank 10. Then, the rope of the connecting column 2 is pulled, while the rope at the other end remains stationary. At this time, the box 1 with the foundation pile will gradually become horizontal. Then, continue to pull the lower rope, and the box 1 will be positioned with the linear motor 13 facing downward. When the collection tank 10 is fully loaded, it is easy to maintain a near-vertical state. Then, the foundation pile can be released to achieve the effect of flipping and sinking the pile. This device has a convenient pile sinking and flipping function and is highly practical.

[0033] Example 2

[0034] Please see Figures 1-6 As shown, this embodiment further includes, based on embodiment 1, a control valve 8 on one side of the box 1, a water pump 9 fixed on the inner wall of the collection tank 10, the water pump 9 being connected to the control valve 8, and the water pump 9 cooperating with the control valve 8 to achieve rapid filling and drainage of the collection tank 10, dynamically adjusting the buoyancy and center of gravity of the box 1, and improving the efficiency of the pile driving.

[0035] The upper and lower sides of the box 1 are equipped with probes 7, which are connected to the central control system. The probes 7 monitor the position of the underwater pile and the attitude of the box 1 in real time. The central control system precisely controls the clamping and flipping process to reduce human operation errors.

[0036] A rotating motor 4 is fixed on one side of the upper end of the mounting plate 3. The output shaft of the rotating motor 4 (with waterproof function) is fixedly connected to the rotation center of the upper end of the gear 16. The rotating motor 4 drives the gear meshing transmission to provide stable torque, ensuring that the clamping arm 5 closes / opens synchronously and avoids pile body displacement.

[0037] The surface of the clamping arm 5 is provided with rubber pads 11 arranged in a ring array. The clamping arm 5 is designed in a semi-circular shape. The semi-circular clamping arm 5 increases the contact area. The rubber pads 11 are anti-slip and shock-absorbing, protect the surface of the pile body and enhance the clamping force.

[0038] The upper and lower ends of the box body 1 are fixed with connecting columns 2. The connecting columns 2 facilitate the coordinated traction of multiple ropes, enabling multi-stage attitude control of the box body 1 for vertical entry into the sea, horizontal flipping, and vertical pile driving.

[0039] A mounting bracket 12 is fixed to the upper end of the housing 1. A linear motor 13 (with waterproof function) is fixed to one side of the mounting bracket 12. An output end 14 is provided on one side of the linear motor 13. The output end 14 is inserted into the inner wall of the mounting bracket 12 on the other side. The output end 14 of the linear motor 13 is telescopic and adjustable. With the help of rope traction, the tilt angle of the housing 1 is precisely controlled to optimize the pile driving trajectory.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A pile-turning device for driving offshore wind power foundation piles, comprising a housing (1), a clamping arm (5), and a collection trough (10), characterized in that: The box (1) has a mounting groove (6) on one side, and symmetrically distributed clamping arms (5) are rotatably mounted inside the mounting groove (6). The upper end of the box (1) is fixed with a mounting plate (3). The mounting plate (3) has a gear one (15) and a gear two (16) inside. The gear one (15) and the gear two (16) mesh. The clamping arms (5) on both sides rotate coaxially with the gear one (15) and the gear two (16) respectively. The box (1) has a collection groove (10) inside one side. The box (1) has an irregular design with an offset center of gravity.

2. The pile-turning device for driving offshore wind power foundation piles according to claim 1, characterized in that: A control valve (8) is provided on one side of the box (1), and a water pump (9) is fixed on the inner wall of the collection tank (10). The water pump (9) is connected to the control valve (8).

3. The pile-turning device for driving offshore wind power foundation piles according to claim 1, characterized in that: The box (1) is equipped with probes (7) on the upper and lower sides, and the probes (7) are connected to the background control center.

4. The pile-turning device for driving offshore wind power foundation piles according to claim 1, characterized in that: A rotating motor (4) is fixed on one side of the upper end of the mounting plate (3), and the output shaft of the rotating motor (4) is fixedly connected to the rotation center of the upper end of the gear (16).

5. The pile-turning device for driving offshore wind power foundation piles according to claim 1, characterized in that: The clamping arm (5) has rubber pads (11) arranged in a ring array on its surface, and the clamping arm (5) has a semi-arc design.

6. The pile-turning device for driving offshore wind power foundation piles according to claim 1, characterized in that: The box (1) is fixed with connecting columns (2) at both the top and bottom ends.

7. The pile-turning device for driving offshore wind power foundation piles according to claim 1, characterized in that: The upper end of the housing (1) is fixed with a mounting bracket (12), and a linear motor (13) is fixed on one side of the mounting bracket (12). The linear motor (13) has an output end (14) on one side, and the output end (14) is inserted into the inner wall of the mounting bracket (12) on the other side.

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