Offshore wind turbine large-diameter pile sinking and pulling device and construction method

Abstract

The invention discloses an offshore wind turbine large-diameter pile sinking and pulling device and a construction method. The offshore wind turbine large-diameter pile sinking and pulling device comprises a lifting device, a vibration suppression module, a horizontal vibration module, a vertical vibration module, a torsional vibration module and a pile connecting device which are sequentially connected from top to bottom; the vertical vibration module and the torsional vibration module are connected through a bearing; the vertical vibration module and the torsional vibration module are each provided with an independent driving mechanism and an eccentric block assembly so that multi-dimensional vibration coupling can be achieved, the construction efficiency can be improved, and inclination correction of the pile body can be achieved.

Description

TECHNICAL FIELD

[0001] The application relates to a large-diameter pile sinking and pulling device for an offshore wind turbine and a construction method, and belongs to the technical field of offshore engineering. BACKGROUND

[0002] A large-diameter single pile foundation is the most mature foundation form for current offshore wind turbines, is usually applied to shallow sea areas with a water depth of 20-30 m, has a burial depth of 25-35 m, and has a diameter of 6-10 m. In the process of sinking a large-diameter pile for an offshore wind turbine, the construction is easily affected by environmental factors such as soil, sea current, sea wind and climate, resulting in a changeable construction environment and a short construction window period. At the same time, the equipment transportation process is complicated and costly, and a large amount of manpower and material resources are consumed.

[0003] The existing vibration sinking technology for a large-diameter pile of an offshore wind turbine mainly adopts single vertical vibration, and faces problems such as an increase in sand resistance with an increase in pile sinking depth, pile body inclination and construction noise pollution, and the effect of the existing scheme is poor. For example, in order to solve the noise problem, some wind farms in Guangdong and Fujian adopt a bubble curtain noise reduction system, which releases dense bubbles to form a barrier around the pile body, absorbs vibration energy and blocks the propagation of noise, but this method is complicated to implement and increases the engineering quantity. SUMMARY

[0004] The purpose of the present application is to overcome the deficiencies in the prior art, and provide a large-diameter pile sinking and pulling device for an offshore wind turbine and a construction method, which solves the technical problems of high energy consumption and low efficiency of traditional single vertical vibration pile sinking and difficult pile body inclination correction through a multi-dimensional vibration coupling mechanism and phase coordination control.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: In a first aspect, the present application provides a large-diameter pile sinking and pulling device for an offshore wind turbine, comprising a lifting device, a vibration suppression module, a horizontal vibration module, a vertical vibration module and a torsional vibration module connected in sequence from top to bottom, and a pile connecting device is arranged at the bottom of the torsional vibration module; The horizontal vibration module and the vertical vibration module are connected through a bearing, and the vertical vibration module and the torsional vibration module are connected through a bearing; The vertical vibration module and the torsional vibration module are respectively provided with independent driving mechanisms and eccentric block assemblies to realize multi-dimensional vibration coupling.

[0006] In combination with the first aspect, further, the vertical vibration module is provided with a bidirectional shaft output hydraulic motor and symmetrically distributed vertical vibration eccentric blocks; The horizontal vibration module is provided with a unidirectional shaft output motor and symmetrically distributed horizontal vibration eccentric blocks; The torsional vibration module is provided with at least two groups of torsional vibration one-way out-of-shaft motors and torsional vibration eccentric blocks distributed in a staggered symmetrical manner.

[0007] Further, the vibration suppression module is provided with at least two damping springs, the upper part of the vibration suppression module is fixedly connected with the lifting device, and the lower part is connected with the horizontal vibration module.

[0008] Further, the horizontal vibration module comprises a horizontal vibration large gear and a horizontal vibration small gear which are engaged with each other, the horizontal vibration small gear is connected with the horizontal vibration one-way out-of-shaft motor through a horizontal vibration output shaft, the horizontal vibration large gear is provided with a horizontal vibration eccentric block, and the horizontal vibration eccentric blocks are initially arranged in a mirror image symmetrical manner.

[0009] Further, the vertical vibration module is provided with a bidirectional out-of-shaft hydraulic motor, the bidirectional out-of-shaft hydraulic motor is connected with a vertical vibration small gear through a vertical vibration output shaft, the vertical vibration small gear is engaged with a vertical vibration large gear, the vertical vibration large gear is provided with a vertical vibration eccentric block, and the vertical vibration eccentric blocks are initially arranged in a mirror image symmetrical manner.

[0010] Further, the torsional vibration one-way out-of-shaft motor is connected with a torsional vibration small gear through a one-way torsional vibration output shaft, the torsional vibration small gear is engaged with a torsional vibration large gear, the torsional vibration large gear is provided with a torsional vibration eccentric block, and the torsional vibration eccentric blocks are initially arranged in a staggered manner to realize high-frequency micro-amplitude torsional vibration.

[0011] Further, the vibration suppression module is internally provided with an external circuit cable, the external circuit cable is connected with driving mechanisms of the horizontal vibration module, the vertical vibration module and the torsional vibration module through horizontal vibration cables, vertical vibration cables and torsional vibration cables respectively.

[0012] Further, the bearing is of a split structure of an inner ring and an outer ring, the outer ring is fixedly connected with adjacent module housings through bolts, and the inner ring is free to rotate; the central axis of the bearing coincides with the axis of the pile body.

[0013] In a second aspect, the application provides a construction method of the offshore wind turbine large-diameter pile sinking and lifting device, comprising: The lifting device is connected with external lifting equipment and positioned to a pre-sinking position; The horizontal vibration eccentric block, the vertical vibration eccentric block and the torsional vibration eccentric block are adjusted to a preset initial phase; The vertical vibration module is started to sink the pile body by 3-6 cm, the torsional vibration module is started after the pile body is stabilized, and coupling of vertical vibration and torsional vibration is realized; When the inclination of the pile body exceeds a threshold value, the vertical vibration module and the torsional vibration module are closed, and the horizontal vibration module is started to correct the deviation.

[0014] In combination with the second aspect, further, the construction method further comprises a pile pulling step: The horizontal vibration module is started to generate horizontal reciprocating vibration, thereby generating shear displacement at the pile-soil interface; The vertical vibration module is started to generate upward vertical exciting force, thereby realizing coupling of horizontal vibration and vertical vibration; An upward pulling force is applied through the pulling device, thereby realizing pulling out of the pile body.

[0015] Compared with the prior art, the application has the following beneficial effects: The application provides a large-diameter pile sinking and pulling device for offshore wind turbines and a construction method, which optimizes the conventional large-diameter pile sinking and pulling method for offshore wind turbines, is energy-saving and efficient, and specifically, during pile sinking, when high-frequency torsional vibration and vertical vibration are coupled, torsional vibration can mobilize the shear strength of the soil around the pile in the circumferential direction, thereby reducing the frictional resistance required during axial penetration of the pile body and reducing the energy consumption for vertical pile sinking; during deviation correction, deviation correction is performed when the pile body is slightly inclined, which is more efficient than pulling out the pile body and re-sinking the pile when the pile body is inclined; during pile pulling, horizontal vibration and vertical vibration are coupled to form a composite vibration field, which can shear the soil structure around the pile, promote interface slip, and optimize energy distribution, thereby reducing the energy consumption for pile pulling.

[0016] The application reduces the vertical vibration load required for driving the pile body during pile sinking by combining high-frequency micro-amplitude torsion, the stress amplitude generated is lower than that generated by pure axial vibration pile driving, low-frequency vertical vibration technology is developed, the interference of acoustic waves with marine organisms is reduced, and the impact on the marine ecosystem is reduced; on the other hand, compared with vertical vibration, the mobilization of soil resistance by high-frequency torsion is mainly concentrated in the local area around the pile and is only transmitted to the surrounding medium, and cannot propagate in the form of shear waves in seawater, and thus does not contribute to underwater noise. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structural schematic diagram of a large-diameter pile sinking and pulling device for offshore wind turbines is provided for the embodiments of the application; Figure 2 A front view of the internal structure of the vertical vibration module is provided for the embodiments of the application; Figure 3 A left view of the internal structure of the vertical vibration module is provided for the embodiments of the application; Figure 4 A schematic diagram of the rotation direction of the eccentric wheel in the vertical vibration module is provided for the embodiments of the application; Figure 5 A schematic diagram of the rotation direction of the eccentric block in the torsional vibration module is provided for the embodiments of the application; Figure 6 A front view of the internal structure of the torsional vibration module is provided for the embodiments of the application; Figure 7A schematic diagram illustrating high-frequency micro-amplitude torsion of the torsional vibration module provided in this embodiment of the application; Figure 8 This is a schematic diagram of the internal structure of the horizontal vibration module provided in an embodiment of this application; Figure 9 This is a schematic diagram of the gear rotation direction in the horizontal vibration module provided in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the first and second bearings provided in the embodiments of this application; Figure 11 This is a schematic diagram of the lifting device structure provided in the embodiments of this application; Figure 12 A schematic diagram of the circuit assembly portion provided in the embodiments of this application; In the diagram: 1. Lifting device; 2. Vibration suppression module; 3. Horizontal vibration module; 4. Vertical vibration module; 5. Torsional vibration module; 6. First bearing; 7. Second bearing; 8. Pile connection device; 9. Bidirectional output shaft hydraulic motor; 10. Vertical vibration output shaft; 11. Vertical vibration pinion; 12. Vertical vibration gear; 13. Vertical vibration gear shaft; 14. Central load-bearing plate; 15. Vertical vibration eccentric block; 16. Torsional vibration gear; 17. Torsional vibration pinion; 18. Unidirectional output shaft motor for torsional vibration; 19. Torsional vibration gear shaft. 0. Load-bearing plate; 21. Torsional vibration eccentric block; 22. Unidirectional torsional vibration output shaft; 23. Horizontal vibration unidirectional output shaft motor; 24. Horizontal vibration output shaft; 25. Horizontal vibration pinion; 26. Horizontal vibration gear; 27. Horizontal vibration gear shaft; 28. Horizontal vibration eccentric block; 29. ​​Limiting plate; 30. Vibration damping spring; 31. External circuit cable; 32. Vertical vibration cable; 33. Torsional vibration cable; 34. Horizontal vibration cable; 35. Horizontal vibration module inlet; 36. Torsional vibration module inlet; 37. Vertical vibration module inlet; 38. Socket. Detailed Implementation

[0018] The present application will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and should not be used to limit the scope of protection of the present application.

[0019] Example 1:

[0020] This embodiment provides a large-diameter pile driving and extraction device for offshore wind turbines, such as... Figure 1 As shown, the device includes, Figure 11The lifting device 1 is provided with an outer lifting device connecting hole connected with the outer lifting device by bolts at the upper part of the lifting device 1, and the lower part of the lifting device 1 is welded to the vibration suppression module 2. The horizontal vibration module 3 is fixedly connected with the vibration suppression module 2 at the upper part, and specifically, the housings are welded to each other; the lower part of the horizontal vibration module 3 is connected with the vertical vibration module 4 by the first bearing 6 through bolts.

[0021] The first bearing 6 is installed below the center of the horizontal vibration module 3, and the second bearing 7 is installed below the center of the vertical vibration module 4.

[0022] As shown in the appearance schematic view of the first bearing and the second bearing, Figure 10 the first bearing 6 and the second bearing 7 are connected with the modules by bolts, and the bolts only fix the outer rings of the first bearing 6 and the second bearing 7 to ensure smooth rotation of the inner rings and avoid the influence of the torsion of the large-diameter pile sinking and pulling device of the offshore wind turbine on the overall stability.

[0023] The whole device of the large-diameter pile sinking and pulling device of the offshore wind turbine is centrally symmetric, and the lifting device 1 is installed at the top center position.

[0024] The vibration suppression module 2 is internally provided with two damping springs 30, and the two damping springs 30 are located at the connecting part with the horizontal vibration module 3. The elastic coefficient of the damping spring 30 is determined according to the size and weight of the pile sinking. The vibration suppression module 2 is internally provided with a circuit collection part, and the cables of the vibration modules are gathered here. The external circuit cable 31 is connected with this place through the socket 38 to supply power.

[0025] The schematic view of the circuit collection part is shown in the figure, Figure 12 the horizontal vibration cable 34 of the hydraulic motor in the horizontal vibration module 3 is connected to the external circuit cable from the horizontal vibration module inlet 35. The vertical vibration cable 32 of the hydraulic motor in the vertical vibration module 4 is connected to the external circuit cable 31 from the vertical vibration module inlet 37. The torsional vibration cable 33 of the hydraulic motor in the torsional vibration module 5 is connected to the external circuit cable 31 from the torsional vibration module inlet 36. The socket 38 is the interface of the external circuit cable 31, and after the interface is connected, the bayonet is tightened, and the circuit is connected through the end socket.

[0026] As shown in the appearance schematic view of the first bearing and the second bearing, Figure 8As shown, the lower part of the horizontal vibration module 3 is provided with a limiting plate 29, which is arranged to leave enough space for the horizontal vibration unidirectional output shaft motor 23 below and to ensure that the horizontal vibration eccentric block 28 does not touch the top plate of the horizontal vibration module 3 after the driving mechanism is assembled. Two horizontal vibration gear shafts 27 are symmetrically arranged in the central part, and two horizontal vibration gears 26 are arranged on the shafts and mesh with each other. Each of the two horizontal vibration gears 26 is fixed with a horizontal vibration eccentric block 28. The two horizontal vibration gears 26 are respectively meshed with horizontal vibration pinions 25 on the sides away from each other, and the horizontal vibration pinions 25 are fixed with the horizontal vibration unidirectional output shaft motor 23 through the horizontal vibration output shaft 24. Each horizontal vibration unidirectional output shaft motor 23 is connected with a group of horizontal vibration cables 34, which are collected from the horizontal vibration module inlet 35 to the external circuit cable 31 and connected with the external power system.

[0027] After the starting condition is detected, the horizontal vibration unidirectional output shaft motor 23 is started to drive the horizontal vibration pinions 25 to rotate the horizontal vibration gears 26, and the overall rotation direction is shown in Figure 9 As shown, the horizontal forces generated by the combined rotation of the four gears cancel each other out along the short side direction of Figure 9 , and the vertical forces superimpose each other along the long side direction of Figure 9 , thereby forming a horizontal exciting force in space.

[0028] As shown in Figure 2 , Figure 3 are respectively the front view and the left view of the internal structure of the vertical vibration module 4. The vertical vibration module 4 and the horizontal vibration module 3 are square structures of the same size, and are internally provided with a central load-bearing plate 14.

[0029] Figure 2 As shown in the figure, six holes are symmetrically and uniformly reserved on each of the two vertical plates connected with the central load-bearing plate 14, which are divided into upper holes and middle holes according to the positions. The vertical vibration output shaft 10 passes through the upper two holes. The vertical vibration gear shaft 13 passes through the middle four holes, and four vertical vibration gears 12 are arranged on the shaft. Taking one side of the four vertical vibration gears 12 as an example, the four vertical vibration gears 12 mesh with each other, and each vertical vibration gear 12 is connected with a vertical vibration eccentric block 15 through a high-strength bolt. The mass and the distance of the shaft center of each vertical vibration eccentric block 15 are the same. The outermost two vertical vibration gears 12 are respectively meshed with vertical vibration pinions 11, and the vertical vibration pinions 11 are fixed with the bidirectional output shaft hydraulic motor 9 through the vertical vibration output shaft 10.

[0030] The bidirectional output shaft hydraulic motor 9 is fixed on the central load-bearing plate 14. The bidirectional output shaft hydraulic motor 9 is connected with a group of vertical vibration cables 32, which are collected from the vertical vibration module inlet 37 to the external circuit cable 31 and connected with the external power system.

[0031] The vertical vibration eccentric block 15 needs to be at the lowest phase at the start. After detecting that the starting condition is reached, the bidirectional out-shaft hydraulic motor 9 is started to drive the vertical vibration pinion 11 to rotate, and the vertical vibration pinion 11 drives the meshed vertical vibration gear 12 to rotate, as shown in the overall rotation diagram. Figure 4 The gears on both sides of the bidirectional out-shaft hydraulic motor 9 rotate jointly, the horizontal centrifugal force generated is offset, and the vertical centrifugal force generated is superimposed, thereby forming a stable vertical excitation force.

[0032] As shown in Figure 5 , Figure 6 , one side of the torsional vibration module 5 is provided with two bearing plates 20, one torsional vibration unidirectional out-shaft motor 18 is fixed on each bearing plate 20, and a group of torsional vibration cables 33 is connected to each torsional vibration unidirectional out-shaft motor 18. The torsional vibration cables 33 converge from the torsional vibration module inlet 36 to the external circuit cable and are connected to the external power system.

[0033] As shown in detail Figure 5 , the bearing plate 20 is connected to the vertical plate outside the device, the vertical plate is provided with six holes, which are divided into two holes on the left side and four holes on the right side. The torsional vibration output shaft passes through the two holes on the left side. The torsional vibration gear shaft 19 passes through the four holes on the right side. Each torsional vibration unidirectional out-shaft motor 18 is fixed to the torsional vibration pinion 17 through the unidirectional torsional vibration output shaft 22, the torsional vibration pinion 17 is meshed with the torsional vibration gear 16, and a plurality of torsional vibration gears 16 are arranged between the two torsional vibration gears 16 meshed with the torsional vibration pinion 17. In this embodiment, four torsional vibration gears 16 are arranged.

[0034] The torsional vibration eccentric block 21 is connected to the torsional vibration gear 16 by high-strength bolts. From top to bottom, the torsional vibration eccentric blocks 21 of the second and fourth torsional vibration gears before starting are at the lowest position, and the torsional vibration eccentric blocks 21 of the first and third torsional vibration gears before starting are at the highest position.

[0035] The two torsional vibration unidirectional out-shaft motors 18 on each side of the torsional vibration module 5 are connected in parallel, and the initial phase is checked through the synchronous rotation point before starting. After detecting that the starting condition is reached, the torsional vibration unidirectional out-shaft motor 18 is started to drive the pinion 11 to rotate in the opposite direction, and the six gears on both sides of the torsional vibration unidirectional out-shaft motor 18 can rotate jointly to generate a symmetrical force with the torsional vibration module shaft as the center.

[0036] As shown in Figure 7As shown, the torsional vibration module 5 provided in the embodiment is a schematic diagram of high-frequency micro-torsional vibration; the left side of the drawing is the counterclockwise reciprocating change of the torsional vibration of the torsional vibration module 5, and the right side of the drawing is the clockwise reciprocating change of the torsional vibration of the torsional vibration module 5.

[0037] Embodiment two:

[0038] The embodiment according to the large-diameter pile sinking and pulling device of the offshore wind turbine provided in embodiment one, the sinking and pulling of the pile body are carried out, and the specific steps are as follows: S1, connect the external lifting device to the lifting device 1, and slowly lift the entire large-diameter pile sinking and pulling device of the offshore wind turbine to the pre-sinking position.

[0039] S2, connect the piles with different diameters to the pile connecting device 8.

[0040] S3, check the horizontal vibration eccentric blocks 28 of the horizontal vibration module 3, so that the initial phases of the two horizontal vibration eccentric blocks 28 are mirror images. Check each vertical vibration eccentric block 15 of the vertical vibration module 4, so that the initial phases are mirror images. Check the torsional vibration eccentric blocks 21 of the two wings of the torsional vibration module 5, so that the initial phases of the torsional vibration eccentric blocks 21 of the two wings are opposite, but the initial phases of the torsional vibration eccentric blocks 21 on the same side should be the same.

[0041] S4, when the pile sinking starts, first start the vertical vibration module 4 to sink the pile body by 3-6 cm, and then start the torsional module 5 after the pile body has a certain stability, and the two modules work together. The vertical vibration is low-frequency vibration, about 100-150 times / min, and the torsional vibration is high-frequency micro-torsional vibration, about 250-300 times / min. Monitor the pile sinking data and adjust the vibration frequency to achieve resonance with the soil.

[0042] S5, monitor the inclination during the pile sinking process, and when the inclination exceeds the bearing range, turn off the vertical vibration module 3 and the torsional vibration module 4, and start the horizontal vibration module 3 to reduce the resistance around the pile body through horizontal vibration, and cooperate with the external force to realize pile body deviation correction.

[0043] S6, after the pile body reaches the pre-sinking position, the connection of the external lifting device is released, and the device is recovered.

[0044] The pile pulling process is as follows: First, start the horizontal vibration module 3 to generate reciprocating shear displacement at the pile-soil interface, break the static friction locking effect, then start the vertical vibration module 4, and the horizontal vibration and vertical vibration are coupled to realize pile pulling.

[0045] The lifting device 1 can be connected to the vibration suppression module 2 and the external device of the pile driver to avoid vibration fatigue of the external device, thereby improving the service life and safety of the external lifting device.

[0046] The offshore wind turbine large-diameter pile sinking and pulling device and the construction method provided by the application can change the vibration by changing the frequency, amplitude and weight of the mass block, ensure the pile sinking, adapt to different pile sinking conditions, carry out more efficient and rapid pile sinking, accelerate the pile sinking speed and reduce the pile sinking period.

[0047] The application can effectively improve the pile sinking efficiency and reduce the noise pollution during pile sinking by converting the vertical vibration into low frequency and adding high-frequency torsional vibration and horizontal vibration which is turned on when needed. The application provides an auxiliary mode for pile pulling, can correct the inclined pile body, carries out pile pulling under horizontal vibration, enhances the pile pulling effect, can improve the low pile body recovery rate in the ocean and reduce resource loss.

[0048] In the description of the application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application to simplify the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0049] In the description of the application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0050] The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the application.

Claims

1. A large-diameter pile driving and pulling device for offshore wind turbines, characterized in that It comprises a pulling device (1), a vibration suppression module (2), a horizontal vibration module (3), a vertical vibration module (4) and a torsional vibration module (5) connected in sequence from top to bottom, wherein the bottom of the torsional vibration module (5) is provided with a pile connecting device (8); The horizontal vibration module (3) and the vertical vibration module (4) and the torsional vibration module (5) are connected through bearings; The vertical vibration module (4) and the torsional vibration module (5) are respectively provided with independent driving mechanisms and eccentric block assemblies to realize multi-dimensional vibration coupling.

2. The apparatus of claim 1, wherein The vertical vibration module (4) is provided with a bidirectional output shaft hydraulic motor (9) and symmetrically distributed vertical vibration eccentric blocks (15). The horizontal vibration module (3) is provided with a unidirectional output shaft motor (23) and symmetrically distributed horizontal vibration eccentric blocks (28). The torsional vibration module (5) is provided with at least two groups of torsional vibration unidirectional output shaft motors (18) and staggered symmetrically distributed torsional vibration eccentric blocks (21).

3. The apparatus of claim 1, wherein The vibration suppression module (2) is provided with at least two vibration reduction springs (30), the upper part of the vibration suppression module (2) is fixedly connected with the pulling device (1), and the lower part is connected with the horizontal vibration module (3).

4. The apparatus of claim 1, wherein The horizontal vibration module (3) comprises a horizontal vibration large gear (26) and a horizontal vibration small gear (25) engaged with each other, the horizontal vibration small gear (25) is connected with the horizontal vibration unidirectional output shaft motor (23) through a horizontal vibration output shaft (24), the horizontal vibration large gear (26) is provided with a horizontal vibration eccentric block (28), and the horizontal vibration eccentric blocks (28) are initially arranged in mirror image symmetry.

5. The apparatus of claim 1, wherein The vertical vibration module (4) is provided with a bidirectional output shaft hydraulic motor (9), the bidirectional output shaft hydraulic motor (9) is connected with a vertical vibration small gear (11) through a vertical vibration output shaft (10), the vertical vibration small gear (11) is engaged with a vertical vibration large gear (12), the vertical vibration large gear (12) is provided with a vertical vibration eccentric block (15), and the vertical vibration eccentric blocks (15) are initially arranged in mirror image symmetry.

6. The apparatus of claim 1, wherein The torsional vibration unidirectional output shaft motor (18) is connected with a torsional vibration small gear (17) through a unidirectional torsional vibration output shaft (22), the torsional vibration small gear (17) is engaged with a torsional vibration large gear (16), the torsional vibration large gear (16) is provided with a torsional vibration eccentric block (21), and the torsional vibration eccentric blocks (21) are initially arranged in staggered symmetry.

7. The apparatus of claim 1, wherein The vibration suppression module (2) is provided with an outer circuit cable (31), the outer circuit cable (31) is connected with driving mechanisms of the horizontal vibration module (3), the vertical vibration module (4) and the torsional vibration module (5) through horizontal vibration cables (34), vertical vibration cables (32) and torsional vibration cables (33) respectively.

8. The apparatus of claim 1, wherein, The bearing has a split structure of an inner ring and an outer ring, the outer ring is fixedly connected with adjacent module housings through bolts, and the inner ring is free to rotate; the center axis of the bearing coincides with the axis of the pile body.

9. The construction method of a large-diameter pile driving and pulling device for offshore wind turbines according to any one of claims 1-8, characterized in that, It comprises: Connecting the pulling device (1) with external pulling equipment, positioning to the pre-sinking pile position; Adjusting the horizontal vibration eccentric block (28), the vertical vibration eccentric block (15) and the torsional vibration eccentric block (21) to the preset initial phase; Starting the vertical vibration module (4) to sink the pile body by 3-6 cm, and after the pile body is stable, starting the torsional vibration module (5) to realize the coupling of vertical vibration and torsional vibration; When the inclination of the pile body exceeds the threshold value, the vertical vibration module (4) and the torsional vibration module (5) are closed, and the horizontal vibration module (3) is started to correct the deviation.

10. The construction method according to claim 9, characterized in that, The construction method further comprises a pile pulling step: Starting the horizontal vibration module (3) to generate horizontal reciprocating vibration to generate shear displacement at the pile-soil interface; Starting the vertical vibration module (4) to generate upward vertical excitation force to realize the coupling of horizontal vibration and vertical vibration; Through the pulling device (1), upward pulling force is applied to realize the pulling out of the pile body.

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