A double-side suspended pile driving offshore vessel

Abstract

The present invention belongs to the technical field of marine engineering equipment, and discloses a double-sided suspended pile-driving marine engineering vessel, including a marine engineering vessel, a marine engineering crane, a plurality of wing span pile fixing devices and a plurality of ring diameter adjustment devices; the marine engineering crane is arranged on the deck of the marine engineering vessel, and is used to hoist the pile foundation; a plurality of wing span pile fixing devices are hinged on both sides of the marine engineering vessel, and a pile gripper is provided at the end of each wing span pile fixing device, and the pile gripper is used to firmly clamp the pile foundation; a plurality of ring diameter adjustment devices are arranged on the pile gripper, and are used to adjust the inner diameter of the pile gripper to clamp the pile foundation. The present invention realizes the synchronous construction of multiple pile foundations under single positioning by combining the double-sided wing span pile fixing devices of the hull with a large marine engineering crane, and significantly improves the efficiency of positioning and piling. At the same time, the ring diameter adjustment device with rollers supports the construction of pile foundation diameter variation, straightens the whole process, and ensures accurate positioning. The invention not only improves the construction efficiency, but also enhances the construction flexibility and accuracy, bringing significant benefits to marine engineering.

Description

Technical Field

[0001] The invention discloses a double-side suspended piling offshore vessel, belonging to the technical field of offshore equipment. Background Art

[0002] In the field of offshore infrastructure construction and marine engineering, the construction of precast piles is a key link, and its efficiency and precision directly affect the overall progress and quality of the project. However, traditional offshore precast pile construction faces many challenges. Due to the complexity and variability of the marine environment, including the continuous influence of natural factors such as wind, waves, ocean currents and tides, construction vessels need to frequently move, stabilize and accurately position the ship. This process is time-consuming and significantly restricts construction efficiency. In addition, the fixed-caliber pile gripper equipped with traditional guide rod pile driving ships seems to be unable to cope with the construction of variable diameter pile foundations. It cannot effectively adapt to the guidance and positioning requirements of pile foundations of different diameters, which limits the flexibility and efficiency of construction.

[0003] What is particularly critical is that during the piling process, pile foundation deflection often occurs, which not only affects the verticality and stability of the pile foundation, but also may cause potential safety hazards to surrounding structures. Traditional construction equipment lacks effective real-time guidance and correction mechanisms, making it difficult to correct pile foundation deviations in a timely manner during construction, thereby increasing construction difficulty and cost. Summary of the invention

[0004] The purpose of the present invention is to provide a double-sided suspended piling offshore vessel to solve the technical problem that only one pile foundation can be planted at a time in the prior art and the variable diameter pile cannot be adapted to guide and position. To achieve the above purpose, the present invention proposes a double-sided suspended piling offshore vessel, and the specific scheme is as follows:

[0005] A double-side suspended pile driving offshore vessel, comprising an offshore vessel, an offshore crane, a plurality of wingspan pile fixing devices and a plurality of ring diameter adjusting devices;

[0006] The offshore crane is arranged on the deck of the offshore vessel and is used for hoisting the pile foundation;

[0007] The plurality of wingspan pile fixing devices are hinged on both sides of the offshore vessel, and a pile gripper is provided at the end of each wingspan pile fixing device, and the pile gripper is used for firmly clamping the pile foundation;

[0008] The plurality of ring diameter adjustment devices are arranged on the pile gripper and are used to adjust the inner diameter of the pile gripper to clamp the pile foundation.

[0009] Preferably, each of the ring diameter adjustment devices comprises a variable diameter hydraulic cylinder, a roller shaft and a roller;

[0010] The end of the variable diameter hydraulic cylinder is connected to the roller shaft, and is used to drive the roller shaft to move toward the axis of the pile gripper to grip the pile foundation, and the axis of the roller shaft is perpendicular to the axis of the pile foundation;

[0011] The roller is mounted on the roller shaft and rotates around its axis, and is used to move the pile foundation in the pile gripper during the pile planting process.

[0012] Preferably, each span-mounted pile fixing device further comprises: an outstretched arm;

[0013] One end of the outreach arm is hinged to the offshore vessel, and the other end is connected to the pile gripper for adjusting the position of the pile gripper.

[0014] Preferably, the offshore vessel further comprises an arm locking mechanism;

[0015] The extension arm locking mechanism is arranged between the extension arm and the offshore vessel, and is used to drive and lock the extension arm to achieve the extension and retraction of the extension arm.

[0016] Preferably, the arm locking mechanism comprises: a rotating shaft, a first hydraulic cylinder and a limit plate;

[0017] One end of the rotating shaft is fixedly connected to the abduction arm;

[0018] The first hydraulic cylinder is arranged on the deck and connected between the two ends of the rotating shaft, and is used to drive the rotating shaft to drive the outreaching arm to expand and retract;

[0019] The limiting plate is fixedly arranged on the deck and is used for fixing the other end of the rotating shaft.

[0020] Preferably, the pile gripper comprises a fixed ring part and a dynamic ring part;

[0021] The fixed ring portion is fixedly arranged on the abduction arm;

[0022] One end of the moving ring part is hinged to one end of the fixed ring part, and the other end of the moving ring part is locked to the other end of the fixed ring part, so as to firmly clamp the pile foundation.

[0023] Preferably, the pile gripper further comprises a second hydraulic cylinder;

[0024] The second hydraulic cylinder is connected to one end of the moving ring part, and is used for driving the moving ring part and the fixed ring part to open and close.

[0025] Preferably, the fixed ring part and the dynamic ring part of the pile gripper include two layers;

[0026] The axes of the fixed ring part and the dynamic ring part of the two layers coincide with each other.

[0027] Preferably, the ring diameter adjustment device further includes a housing and a limit block;

[0028] The variable diameter hydraulic cylinder is arranged in the housing;

[0029] The limit block is arranged between the variable diameter hydraulic cylinder and the housing, and is used to lock the radial position of the variable diameter hydraulic cylinder.

[0030] Preferably, it also includes positioning piles, bow and stern trolleys and anchor windlasses;

[0031] The positioning piles are arranged at both ends of the offshore vessel to fix the offshore vessel;

[0032] The bow and stern trolleys are arranged at the bow and stern of the offshore vessel, and are used to move the offshore vessel quickly and accurately;

[0033] The anchor machines are arranged at both ends of the offshore vessel and are used to fix the offshore vessel.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The present invention greatly improves the construction efficiency by adopting the layout of the wing-span pile fixing device on both sides of the hull and combining it with the large offshore crane on the ship to perform double-sided suspended pile driving operations. This design allows the hull to be positioned once to simultaneously carry out multiple pile foundation constructions, effectively reducing the number of positioning times and waiting time, significantly speeding up the project progress and reducing construction costs.

[0036] (2) The design of the limit plate of the locking mechanism of the outreach arm and the ingenious application of the hydraulic cylinder make the opening angle of the outreach arm flexibly adjustable, and the limit hole is fixed by a pin to ensure stability. This mechanism not only facilitates the rapid adjustment of different construction positions, but also enhances the flexibility of the operation and adapts to diverse construction needs and environmental conditions.

[0037] (3) The pile grippers installed on the double-sided outward extension arms play a good role in guiding and correcting the pile during the piling process, effectively reducing the impact of sea conditions (such as waves, tides, etc.) on the positioning of the pile foundation. This design enhances the stability and safety during the construction process, ensuring that the pile foundation construction can be completed efficiently and accurately under complex sea conditions.

[0038] (4) The upper and lower layers of pile grippers are designed, and the opening and tightening of the gripping hoop are controlled by a hydraulic cylinder, which significantly improves the stability and reliability of the pile gripping. This efficient pile gripping mechanism not only ensures the accurate fixation of the pile foundation, but also speeds up the construction process, laying a solid foundation for the smooth progress of the entire project.

[0039] (5) The ring diameter adjustment device equipped in the present invention can not only meet the construction requirements of variable diameter pile foundations, but also ensure the full straightening of the pile foundation during the up and down movement through the design of the front roller. This function greatly broadens the scope of construction, improves the versatility and flexibility of construction equipment, and provides strong support for complex and changeable marine engineering.

[0040] (6) Every step of the present invention from design to implementation is aimed at improving the positioning accuracy of the pile foundation. The roller straightening function of the ring diameter adjustment device, the precise adjustment of the bilateral extension arms, and the stable clamping mechanism of the pile clamp work together to ensure the high-precision positioning of the pile foundation during the construction process. This is of great significance for ensuring the quality of the project and extending the service life of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A three-dimensional schematic diagram of a double-side suspended piling offshore vessel according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the deployment of the outreach arm in an embodiment of the present invention;

[0043] Figure 3 A three-dimensional schematic diagram of a wingspan pile fixing device in an embodiment of the present invention;

[0044] Figure 4 It is a top view schematic diagram of a pile gripper in an embodiment of the present invention;

[0045] Figure 5 It is a schematic diagram of the arm locking mechanism and the wing span fixing device in an embodiment of the present invention;

[0046] Figure 6 A three-dimensional schematic diagram of a ring diameter adjustment device in an embodiment of the present invention;

[0047] Figure 7 Schematic cross-sectional view of the ring diameter adjustment device in an embodiment of the present invention.

[0048] In the figure: 1. Offshore vessel; 2. Offshore crane; 3. Bow and stern trolley; 4. Positioning pile; 5. Anchor winch; 6. Wing span pile fixing device; 7. Pile gripper; 8. Pile foundation; 9. Fixed ring part ； 10. Moving ring part; 11. Second hydraulic cylinder; 12. Ring diameter adjustment device; 13. Manual latch; 14. Outward extension arm; 15. First hydraulic cylinder; 16. Limit plate; 17. Rotating shaft; 18. Variable diameter hydraulic cylinder; 19. Limit block; 20. Roller shaft; 21. Roller. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0050] like Figure 1-7 As shown, in one embodiment, a double-sided suspended pile-driving offshore vessel 1 is disclosed, comprising an offshore vessel 1, an offshore crane 2, a plurality of wingspan pile fixing devices 6 and a plurality of ring diameter adjustment devices 12; the offshore crane 2 is arranged on the deck of the offshore vessel 1, and is used for lifting pile foundations 8; a plurality of wingspan pile fixing devices 6 are hinged on both sides of the offshore vessel 1, and a pile gripper 7 is provided at the end of each wingspan pile fixing device 6, and the pile gripper 7 is used for firmly clamping the pile foundation 8; a plurality of ring diameter adjustment devices 12 are arranged on the pile gripper 7, and are used for adjusting the inner diameter of the pile gripper 7 to clamp the pile foundation 8.

[0051] In this embodiment, Figure 2 As shown, the offshore vessel 1 adopts a layout of multiple wingspan pile fixing devices 6 on both sides to achieve single positioning of the hull, and synchronously completes the construction of multiple pile foundations 8 on both sides of the hull through double-sided suspended piling.

[0052] Further, such as Figure 1 As shown, it also includes positioning piles 4, bow and stern trolleys 3 and anchor windlass 5; the positioning piles 4 are arranged at both ends of the offshore vessel 1 for fixing the offshore vessel 1; the bow and stern trolleys 3 are arranged at the bow and stern of the offshore vessel 1 for quickly and accurately moving the offshore vessel 1; the anchor windlass 5 are arranged at both ends of the offshore vessel 1 for fixing the offshore vessel 1. The offshore vessel 1 in this embodiment can perform double-sided piling operations through the offshore crane 2, and through the cooperation of the bow and stern trolleys 3, anchor windlass 5, positioning piles 4 and the onboard intelligent system, the offshore vessel 1 can be quickly and efficiently moved, stabilized and positioned.

[0053] Furthermore, each wingspan pile fixing device 6 further includes: an outstretched arm 14 ; one end of the outstretched arm 14 is hinged to the offshore vessel 1 , and the other end is connected to the pile gripper 7 for adjusting the position of the pile gripper 7 .

[0054] Specifically, Figure 3 As shown, each wingspan pile fixing device 6 of the present invention further includes an outstretched arm 14; one end of the outstretched arm 14 is hinged to the offshore vessel 1, and the other end is connected to the pile gripper 7. The outstretched arm 14 is hinged to the offshore vessel 1 to drive the pile gripper 7 to be deployed or retracted on both sides of the hull.

[0055] Furthermore, the offshore vessel 1 further comprises an arm locking mechanism; the arm locking mechanism is arranged between the outreach arm 14 and the offshore vessel 1 and is used to drive and lock the outreach arm 14 to achieve the extension and retraction of the outreach arm 14 .

[0056] Furthermore, the extension arm locking mechanism includes: a rotating shaft 17, a first hydraulic cylinder 15 and a limit plate 16; one end of the rotating shaft 17 is fixedly connected to the extension arm 14; the first hydraulic cylinder 15 is arranged on the deck and connected between the two ends of the rotating shaft 17, and is used to drive the rotating shaft 17 to drive the extension arm 14 to extend and retract; the limit plate 16 is fixedly arranged on the deck, and is used to fix the other end of the rotating shaft 17.

[0057] Specifically, Figure 5 As shown, in this embodiment, the offshore vessel 1 is hinged to the offshore vessel 1 through the arm locking mechanism, the extension arm 14 is fixed to the side of the ship through the first hydraulic cylinder 15, the limit plate 16 and the rotating shaft 17 in the arm locking mechanism, and the pile gripper 7 is fixed to the end of the extension arm 14 away from the hull, and the extension arm 14 is driven to complete the deployment or retraction action through the action of the first hydraulic cylinder 15. When the first hydraulic cylinder 15 drives the extension arm 14 to open at a preset angle, the other end of the rotating shaft 17 is fixed to the limit plate 16 through a latch, thereby fixing the opening angle of the extension arm 14 and positioning the pile gripper 7 at the end of the extension arm 14 to a preset position.

[0058] Furthermore, the pile gripper 7 includes a fixed ring part 9 and a dynamic ring part 10; the fixed ring part 9 is fixedly arranged on the outward arm 14; one end of the dynamic ring part 10 is hinged to one end of the fixed ring part 9, and the other end of the dynamic ring part 10 is locked to the other end of the fixed ring part 9, so as to firmly clamp the pile foundation 8.

[0059] Specifically, Figure 4 As shown, the pile gripper 7 includes a fixed ring part 9 and a dynamic ring part 10. The fixed ring part 9 is fixed on the outward arm 14. One end of the dynamic ring part 10 is hinged to one end of the fixed ring part 9 through a pin shaft, and the other end is locked to the other end of the fixed ring part 9 through a manual latch 13. The fixed ring part 9 and the dynamic ring part 10 surround a clamp fixing ring that matches the diameter of the pile foundation 8.

[0060] Furthermore, the pile gripper 7 further comprises a second hydraulic cylinder 11 ; the second hydraulic cylinder 11 is connected to one end of the dynamic ring part 10 , and is used for driving the dynamic ring part 10 and the fixed ring part 9 to open and close.

[0061] Specifically, Figure 4 As shown, in this embodiment, a second hydraulic cylinder 11 is provided on the outward extension arm 14, and the piston rod of the second hydraulic cylinder 11 is connected to one end of the dynamic ring part 10. The dynamic ring part 10 and the fixed ring part 9 are driven to open and close through the extension and retraction of the piston rod of the second hydraulic cylinder 11, so as to quickly complete the pile holding and pile releasing operations.

[0062] Furthermore, the fixed ring part 9 and the movable ring part 10 of the pile gripper 7 include two layers; the axes of the two layers of the fixed ring part 9 and the movable ring part 10 coincide with each other.

[0063] Specifically, in order to improve the pile holding ability of the pile holding device 7 on the pile foundation 8 and make the pile foundation 8 more stably positioned, in this embodiment, Figure 3 As shown, the fixed ring part 9 and the dynamic ring part 10 of the pile gripper 7 are divided into two layers, upper and lower.

[0064] Furthermore, each ring diameter adjustment device 12 includes a variable diameter hydraulic cylinder 18, a roller shaft 20 and a roller 21; the end of the variable diameter hydraulic cylinder 18 is connected to the roller shaft 20, which is used to drive the roller shaft 20 to move toward the axis of the pile gripper 7 to grip the pile foundation 8; the axis of the roller shaft 20 is perpendicular to the axis of the pile foundation 8; the roller 21 is installed on the roller shaft 20 and rotates around its axis, which is used to make the pile foundation 8 move in the pile gripper 7 during the pile planting process.

[0065] A plurality of ring diameter adjustment devices 12 are provided on a single pile gripper 7 of the present invention, specifically, Figure 4 As shown, in this embodiment, three ring diameter adjusting devices 12 are arranged on a single pile gripper 7, and the three ring diameter adjusting devices 12 are evenly distributed on the pile gripper 7, one of the ring diameter adjusting devices 12 is arranged on the fixed ring part 9 of the pile gripper 7, and the other two ring diameter adjusting devices 12 are arranged on the dynamic ring part 10 of the pile gripper 7.

[0066] like Figure 6 As shown, each ring diameter adjustment device 12 includes a variable diameter hydraulic cylinder 18, a roller shaft 20 and a roller 21. The variable diameter hydraulic cylinder 18 in the ring diameter adjustment device 12 drives the roller shaft 20 and the roller 21 on the roller shaft 20 to move toward the axis of the pile gripper 7, that is, the ring diameter adjustment device 12 automatically expands and contracts with the pile diameter in the pile gripper 7, so that the roller 21 at the front end of the ring diameter adjustment device 12 is always in close contact with the wall of the pile foundation 8, and then plays a role in guiding and correcting deviation, so as to realize the piling operation of the variable diameter pile foundation 8. Among them, the expansion and contraction of the ring diameter adjustment device 12 is realized by the front and rear expansion and contraction of the variable diameter hydraulic cylinder 18, and the front and rear expansion and contraction of the variable diameter hydraulic cylinder 18 realizes the automatic adjustment of the pile gripper ring diameter. The roller 21 is installed at the front end of the ring diameter adjustment device 12 through the roller shaft 20. The roller 21 can provide a better fitting surface to ensure that the pile gripper 7 holds the pile foundation 8 tightly throughout the entire process. The roller 21 can rotate around the roller shaft 20 to ensure that the variable diameter pile foundation 8 can move axially up and down in the pile gripper 7, thereby realizing the piling construction of the variable diameter pile.

[0067] Furthermore, the ring diameter adjustment device 12 also includes a housing and a limit block 19; the variable diameter hydraulic cylinder 18 is arranged in the housing; the limit block 19 is arranged between the variable diameter hydraulic cylinder 18 and the housing, and is used to lock the radial position of the variable diameter hydraulic cylinder.

[0068] Specifically, Figure 7 As shown, the ring diameter adjusting device 12 also includes a shell and a limit block 19. The limit block 19 is arranged on the outer side of the front end of the ring diameter adjusting device 12 and is used to lock the radial position of the variable diameter hydraulic cylinder to prevent the ring diameter adjusting device 12 from rotating due to the torsional force during the piling process, thereby ensuring the stability of the pile gripper 7 during the piling operation.

[0069] The construction process of the double-side suspended piling offshore vessel 1 of the present invention is as follows:

[0070] Step 1, the offshore vessel 1 travels to the piling construction area. During the ship moving process, the wingspan pile fixing device 6 is retracted on both sides of the hull. The bow and stern trolleys 3 are used as the lateral ship moving equipment of the offshore vessel 1, and combined with the longitudinal ship moving of the anchor windlass 5 to improve the ship moving efficiency and accuracy; the bow and stern trolleys 3, the positioning piles 4, the anchor windlass 5 and the anti-rolling system are used to improve the stability of the ship. After arriving at the construction area, the hull is positioned by the onboard intelligent system;

[0071] Step 2: After positioning is completed, the outreach arms 14 on both sides of the offshore vessel 1 are opened to the piling angle through the action of the first hydraulic cylinder 15, and the other end of the rotating shaft 17 is fixed in the limiting hole on the limiting plate 16 through the latch to lock the outreach angle of the outreach arm 14, so that the pile gripper 7 at the end of the outreach arm 14 is positioned to the piling position.

[0072] Step 3, the pile gripper 7 is in the piling position, and the other end of the fixed ring part 9 and the dynamic ring part 10 is in an unlocked state, that is, the hoop is in an open state; after the pile foundation 8 is hoisted to a predetermined height of the axial position of the pile gripper 7 by two large offshore cranes 2 on board, the second hydraulic cylinder 11 injects hydraulic oil, the dynamic ring part 10 and the fixed ring part 9 are closed, that is, the hoop is closed, and the other end located between the dynamic ring part 10 and the fixed ring part 9 is locked, that is, the manual latch 13 is installed;

[0073] Step 4: After the clamp is closed, the variable diameter hydraulic cylinder 18 is injected with hydraulic oil again, and the ring diameter adjusting device 12 extends forward, that is, the roller 21 at its front end presses against the pile wall of the pile foundation 8, and the three ring diameter adjusting devices 12 act simultaneously to clamp the pile foundation 8, thereby achieving the clamping and positioning of the pile.

[0074] Step 5, after the pile foundation 8 is clamped and positioned, the onboard marine crane 2 performs double-sided suspended piling, and the pile falls and is driven into the predetermined depth of the foundation. During this process, the pile diameter will change with the implantation height of the pile foundation 8. Through the hydraulic action of the ring diameter adjusting device 12, the front and rear telescopic distances are automatically adjusted, so that the front end roller 21 of the ring diameter adjusting device 12 is always close to the pile wall, thereby achieving the guidance and deviation correction of the pile.

[0075] Step 6, after the pile foundation 8 is driven into the predetermined depth, the manual latch 13 is pulled out to unlock the other end of the fixed ring part 9 and the movable ring part 10; the second hydraulic cylinder 11 evacuates the hydraulic oil, the clamp is opened, the clamp is separated from the pile foundation 8, and is retracted through the outreach arm 14 to retract the pile gripper 7 to both sides of the hull. At this point, one piling operation is completed. After a single positioning of the hull, the double-sided suspended piling operation of multiple pile foundations 8 can be completed simultaneously.

[0076] The present invention greatly improves the construction efficiency by adopting the layout of the wing span pile fixing device 6 on both sides of the hull and combining it with the large marine crane 2 on the ship to perform the double-sided suspended pile driving operation. This design allows the hull to be positioned once to simultaneously carry out the construction of multiple pile foundations 8, effectively reducing the number of positioning times and waiting time, significantly speeding up the project progress and reducing the construction cost.

[0077] The design of the limit plate 16 of the arm locking mechanism of the extension arm 14 of the present invention and the ingenious application of the hydraulic cylinder make the opening angle of the extension arm 14 flexibly adjustable, and the limit hole is fixed by a pin to ensure stability. This mechanism not only facilitates the rapid adjustment of different construction positions, but also enhances the flexibility of the operation and adapts to diverse construction needs and environmental conditions.

[0078] The pile gripper 7 installed on the double-sided outward extension arms 14 plays a good role in guiding and correcting the pile during the piling process, effectively reducing the influence of sea conditions (such as waves, tides, etc.) on the positioning of the pile foundation 8. This design enhances the stability and safety during the construction process, ensuring that the pile foundation 8 construction can be completed efficiently and accurately under complex sea conditions.

[0079] The upper and lower layers of pile grippers 7 are designed, and the opening and tightening of the gripping hoop are controlled by a hydraulic cylinder, which significantly improves the stability and reliability of the pile gripping. This efficient pile gripping mechanism not only ensures the accurate fixation of the pile foundation 8, but also speeds up the construction speed, laying a solid foundation for the smooth progress of the entire project.

[0080] The ring diameter adjustment device 12 of the present invention can not only meet the construction requirements of the variable diameter pile foundation 8, but also ensure the full straightening of the pile foundation 8 during the up and down movement through the design of the front roller 21. This function greatly broadens the scope of construction, improves the versatility and flexibility of construction equipment, and provides strong support for complex and changeable marine engineering.

[0081] The present invention ensures high-precision positioning of the pile foundation 8 during the construction process through the combined effect of the straightening function of the roller 21 of the ring diameter adjustment device 12, the precise adjustment of the bilateral extension arms 14, and the stable clamping mechanism of the pile gripper 7.

[0082] The above are only several embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, using the above disclosed technical content to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A double-side suspended piling offshore vessel, characterized in that: It includes an offshore vessel, an offshore crane, a plurality of wing span pile fixing devices, an arm locking mechanism and a plurality of ring diameter adjustment devices; The offshore crane is arranged on the deck of the offshore vessel and is used for hoisting the pile foundation; The plurality of wingspan pile fixing devices are hinged on both sides of the offshore vessel, and a pile gripper is provided at the end of each wingspan pile fixing device, and the pile gripper is used for firmly clamping the pile foundation; The plurality of ring diameter adjustment devices are arranged on the pile gripper and are used to adjust the inner diameter of the pile gripper to clamp the pile foundation; The span arm locking mechanism is arranged between each of the wingspan pile fixing devices and the offshore vessel, and is used to drive and lock the wingspan pile fixing device to achieve the expansion and contraction of the wingspan pile fixing device; Each span-mounted stake fixture also includes: an outreaching arm; One end of the outreach arm is hinged to the offshore vessel, and the other end is connected to the pile gripper for adjusting the position of the pile gripper; The arm locking mechanism comprises: a rotating shaft, a first hydraulic cylinder and a limit plate; One end of the rotating shaft is fixedly connected to the abduction arm; The first hydraulic cylinder is arranged on the deck and connected between the two ends of the rotating shaft, and is used to drive the rotating shaft to drive the outreaching arm to expand and retract; The limiting plate is fixedly arranged on the deck and is used to fix the other end of the rotating shaft; Each of the ring diameter adjustment devices comprises a variable diameter hydraulic cylinder, a roller shaft and a roller; The end of the variable diameter hydraulic cylinder is connected to the roller shaft, and is used to drive the roller shaft to move toward the axis of the pile gripper to grip the pile foundation, and the axis of the roller shaft is perpendicular to the axis of the pile foundation; The roller is mounted on the roller shaft and rotates around its axis, and is used to move the pile foundation in the pile gripper during the pile planting process.

2. The double-side suspended piling offshore vessel according to claim 1, characterized in that: The pile gripper comprises a fixed ring part and a dynamic ring part; The fixed ring portion is fixedly arranged on the abduction arm; One end of the moving ring part is hinged to one end of the fixed ring part, and the other end of the moving ring part is locked to the other end of the fixed ring part, so as to firmly clamp the pile foundation.

3. The double-side suspended piling offshore vessel according to claim 2, characterized in that: The pile gripper also includes a second hydraulic cylinder; The second hydraulic cylinder is connected to one end of the moving ring part, and is used for driving the moving ring part and the fixed ring part to open and close.

4. The double-side suspended piling offshore vessel according to claim 2, characterized in that: The fixed ring part and the dynamic ring part of the pile gripper include two layers; The axes of the fixed ring part and the dynamic ring part of the two layers coincide with each other.

5. The double-side suspended piling offshore vessel according to claim 1, characterized in that: The ring diameter adjustment device also includes a housing and a limit block; The variable diameter hydraulic cylinder is arranged in the housing; The limit block is arranged between the variable diameter hydraulic cylinder and the housing, and is used to lock the radial position of the variable diameter hydraulic cylinder.

6. The double-side suspended piling offshore vessel according to claim 1, characterized in that: It also includes the spuds, bow and stern trolleys and anchor winches; The positioning piles are arranged at both ends of the offshore vessel to fix the offshore vessel; The bow and stern trolleys are arranged at the bow and stern of the offshore vessel, and are used to move the offshore vessel quickly and accurately; The anchor machines are arranged at both ends of the offshore vessel and are used to fix the offshore vessel.

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