A pile delivery device for a pile driver and a pile driving method

Abstract

The application discloses a pile feeding device for a piling ship and a pile sinking construction method, and relates to the field of piling ships.The pile feeding device for the piling ship comprises an upper cylinder, a middle cylinder and a lower cylinder, the top end of the upper cylinder can be inserted into the inside of a pile hammer replacement sleeve, the top end of the middle cylinder is connected to the bottom end of the upper cylinder, and the top end of the lower cylinder is connected to the bottom end of the middle cylinder.A large-diameter steel pipe pile can be sleeved on the lower cylinder and abut against the middle cylinder, and the inside of the lower cylinder is provided with a movable sleeve which is movably connected to the lower cylinder and used for limiting the axial position of a small-diameter steel pipe pile.In the application, the large-diameter steel pipe pile is sleeved on the lower cylinder and abuts against the middle cylinder, and the steel pipe pile is gradually driven into the ground; the small-diameter steel pipe pile is inserted into the movable sleeve and abuts against a limiting plane, the limiting plane abuts against a limiting part, and the steel pipe pile is gradually driven into the ground, so that the pile feeding device has high versatility, frequent replacement of the pile feeding device is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pile driving technology, and in particular to a pile driving device and a pile driving construction method for a pile driving vessel. Background Technology

[0002] Currently, most bridge collision avoidance projects employ the method of adding independent collision piers, involving mixed pile driving construction of steel pipe piles with diameters of 1 to 1.5 meters and steel casings with diameters of 3 meters or more. This requires the use of large pile driving vessels. Due to the generally high position of the pile grippers on these large pile driving vessels, and the characteristics of short pile lengths and low elevations, the pile cap may pass through the pile gripper before the pile body is stable, causing displacement deviations in the planar position and verticality of the casing pile. In related technologies, the pile driving device can only meet the pile driving construction of steel casings of the same size. When the size of the steel casing changes, the pile driving device needs to be frequently disassembled and replaced, resulting in low work efficiency and wasted manpower. Summary of the Invention

[0003] To solve at least one of the above-mentioned technical problems, the present invention provides a pile driving device for a pile driving vessel and a pile driving construction method, the technical solution of which is as follows:

[0004] This invention provides a pile feeding device for a pile driving vessel. The pile feeding device for the pile driving vessel includes an upper cylinder, a middle cylinder, and a lower cylinder. The top end of the upper cylinder can be inserted into the pile hammer replacement sleeve. The top end of the middle cylinder is connected to the bottom end of the upper cylinder, and the middle cylinder is used to limit the axial position of a large-diameter steel pipe pile. The top end of the lower cylinder is connected to the bottom end of the middle cylinder, and the large-diameter steel pipe pile can be sleeved on the lower cylinder and abut against the middle cylinder. A movable sleeve is provided inside the lower cylinder, and the movable sleeve is movably connected to the lower cylinder. The movable sleeve is used to limit the axial position of a small-diameter steel pipe pile.

[0005] The embodiments of the present invention have at least the following beneficial effects: In the present invention, the steel pipe pile with a larger diameter is sleeved on the lower cylinder and abuts against the middle cylinder. As the pile hammer moves downward, the steel pipe pile is gradually driven into the ground; the steel pipe pile with a smaller diameter is inserted into the movable sleeve and abuts against the limiting plane. As the pile hammer moves downward, the limiting plane abuts against the limiting component, and the steel pipe pile is gradually driven into the ground. It has strong versatility, avoids frequent replacement of the pile driving device, and improves work efficiency.

[0006] In some embodiments of the present invention, a limiting plane is provided at the top of the movable sleeve, a limiting component is provided on the inner wall of the lower cylinder, the limiting component protrudes from the inner wall of the lower cylinder, a plurality of limiting components are provided, the height of each limiting component is the same, the limiting components are circumferentially distributed, and the limiting plane abuts against the bottom end of each limiting component.

[0007] In some embodiments of the present invention, the limiting plane is welded to the top of the movable sleeve, and the outer wall of the movable sleeve is provided with a plurality of first ribs, each of the first ribs being welded to the limiting plane, and each of the first ribs being circumferentially distributed, so that the steel pipe pile can be inserted into the interior of the movable sleeve.

[0008] In some embodiments of the present invention, an installation structure is provided inside the lower cylinder, the installation structure is located at the bottom end of the lower cylinder, the movable sleeve is located between the installation structure and the limiting component, the installation structure includes a first installation cylinder and a second rib, the first installation cylinder communicates with the movable sleeve, multiple second ribs are provided, each second rib connects the first installation cylinder and the inner wall of the lower cylinder, each second rib is circumferentially distributed, and the steel pipe pile can be inserted into the first installation cylinder.

[0009] In some embodiments of the present invention, the mounting structure further includes a second mounting cylinder, the top end of which is connected to the bottom end of the first mounting cylinder, the second mounting cylinder extending to the bottom end of the lower cylinder, and the diameter of the second mounting cylinder gradually increasing from the bottom end of the first mounting cylinder to the bottom end of the lower cylinder.

[0010] In some embodiments of the present invention, a protrusion is provided on the outer wall of the middle cylinder, and a plurality of protrusions are provided, each of which is circumferentially distributed, and the steel pipe pile can abut against each of the protrusions.

[0011] In some embodiments of the present invention, the upper cylinder includes a connecting portion, a transition portion, and an extension portion. The connecting portion is located at the top end of the upper cylinder and can be inserted into the pile hammer replacement sleeve. The extension portion is located at the bottom end of the upper cylinder and connects to the middle cylinder. The transition portion is located between the connecting portion and the extension portion. The outer diameter of the connecting portion is smaller than the outer diameter of the extension portion, and the diameter of the transition portion gradually increases from the top end to the bottom end.

[0012] In some embodiments of the present invention, a lifting lug is provided on the side wall of the transition portion, the lifting lug is circumferentially distributed, and a chain is provided on the lifting lug, the chain being capable of connecting to the pile hammer replacement sleeve.

[0013] In some embodiments of the present invention, the diameter of the lower cylinder gradually decreases at the bottom end.

[0014] This invention provides a pile driving construction method, comprising:

[0015] When driving large-diameter steel pipe piles, the steel pipe piles are first erected. The lower cylinder of the pile driving device of the pile driving vessel is inserted into the steel pipe pile. The steel pipe pile is connected to the pile driving device through the lifting lugs on the steel pipe pile to ensure the axial position between the steel pipe pile and the pile driving device is stable. The pile gripper is then connected to the side wall of the steel pipe pile through the gripping arm.

[0016] The pile driver descends, driving the steel pipe pile down. When the lifting lug of the steel pipe pile is about to pass through the pile gripper, the pile driving process stops, the gripper arm is opened to facilitate the passage of the lifting lug of the steel pipe pile, and the pile driving continues until the lifting lug of the steel pipe pile passes through the pile gripper.

[0017] Stop driving the pile, and connect the pile gripper to the side wall of the steel pipe pile again through the gripping arm, and drive the pile to the preset position;

[0018] Measure the positional deviation of the steel pipe pile. Once the positional requirements are met, open the arm of the pile gripper to carry out the pile driving work.

[0019] When driving small-diameter steel pipe piles, the steel pipe pile is inserted into the movable sleeve and the pile gripper holds the steel pipe pile.

[0020] When the steel pipe pile is driven to the preset position, the positional deviation of the steel pipe pile is measured. If it meets the requirements, the clamp arm of the pile gripper is opened to carry out the pile driving work.

[0021] The embodiments of the present invention have at least the following beneficial effects: the pile driving device drives large-diameter steel pipe piles through the outer wall of the lower cylinder and drives small-diameter steel pipe piles through the movable sleeve, which facilitates the pile driving construction of steel pipe piles of different diameters and is easy to operate. When driving large-diameter steel pipe piles, the pile gripper needs to make way for the lifting lugs on the side wall of the steel pipe pile to avoid interference between the lifting lugs and the pile gripper.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the pile feeding device for a pile driving vessel according to the present invention;

[0025] Figure 2 This is a schematic diagram of the upper cylinder of the pile-driving device for a pile-driving vessel according to the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the middle cylinder in the pile feeding device for a pile driving vessel of the present invention;

[0027] Figure 4 This is a schematic diagram of the lower cylinder of the pile-driving device for a pile-driving vessel according to the present invention;

[0028] Figure 5 This is a partially enlarged view of the pile delivery device for a pile driving vessel according to the present invention;

[0029] Figure 6 This is a schematic diagram of the movable sleeve in the pile-driving device of the present invention for a pile-driving vessel.

[0030] Figure label:

[0031] 101. Connecting part; 102. Transition part; 103. Extension part; 104. Lifting lug;

[0032] 201. Middle cylinder; 202. Protrusion;

[0033] 301. Lower cylinder; 302. Movable sleeve; 303. Limiting plane; 304. Limiting component; 305. First rib; 306. First mounting cylinder; 307. Second rib; 308. Second mounting cylinder. Detailed Implementation

[0034] This section will combine Figures 1 to 6 Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Features defined with "first" and "second" are used to distinguish feature names and do not have special meanings. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] like Figure 1 As shown, an embodiment of the present invention provides a pile feeding device for a pile driving vessel, which includes an upper cylinder, a middle cylinder 201, and a lower cylinder 301.

[0038] like Figure 2 As shown, the upper cylinder is used to connect the pile hammer, which transmits force to the upper cylinder and then to the steel pipe pile. Furthermore, the upper cylinder can be inserted into the pile hammer replacement sleeve, and the outer diameter of the upper cylinder corresponds to the inner diameter of the pile hammer replacement sleeve, preventing radial swaying of the upper cylinder inside the pile hammer replacement sleeve, thereby ensuring the accurate driving position of the steel pipe pile.

[0039] In some examples, the upper cylinder includes a connecting part 101, a transition part 102, and an extension part 103. The connecting part 101 is located at the top of the upper cylinder and is inserted into the pile hammer replacement sleeve to receive the force given by the pile hammer. The extension part 103 is located at the bottom of the upper cylinder and is connected to the middle cylinder 201. The transition part 102 is used to connect the connecting part 101 and the extension part 103 and is located between the connecting part 101 and the extension part 103.

[0040] In some examples, lifting lugs 104 are provided on the outer wall of the upper cylinder, and chains are mounted on the lifting lugs 104. The chains are connected to the pile hammer replacement sleeve to ensure the axial position stability of the upper cylinder. When the upper cylinder tends to detach downward from the pile hammer replacement sleeve, the chain is tensioned, applying a counterforce to the upper cylinder, thereby keeping the connecting part 101 inside the pile hammer replacement sleeve. Furthermore, the lifting lugs 104 on the outer wall of the upper cylinder correspond to the lifting lugs on the pile hammer replacement sleeve, and the number is equal. Since the lifting lugs on the pile hammer replacement sleeve are circumferentially distributed, the lifting lugs 104 on the outer wall of the upper cylinder are also circumferentially distributed.

[0041] Specifically, the connecting part 101 is located inside the pile hammer replacement sleeve, and a protruding lifting lug 104 cannot be provided on the outer wall; the distance from the extension part 103 to the pile hammer replacement sleeve is relatively far, and if the lifting lug 104 is provided on the outer wall of the extension part 103, the chain length would be large, increasing the difficulty of axial positioning. Therefore, the lifting lug 104 is provided on the side wall of the transition part 102.

[0042] In some examples, to enable the pile driving device to drive large-diameter steel pipe piles, the bottom outer diameter of the pile driving device is relatively large. Meanwhile, to ensure that the connecting part 101 can be inserted into the pile hammer replacement sleeve, the outer diameter of the connecting part 101 is relatively small. The outer diameters of different parts of the upper cylinder are different; the outer diameter of the connecting part 101 is smaller than the outer diameter of the extension part 103, and the outer diameter of the transition part 102 gradually increases from the top to the bottom to meet the size requirements of the steel pipe pile.

[0043] In some examples, since the pile hammer replacement sleeve contacts the upper cylinder from the top of the connection 101, in order to improve the strength of the contact and avoid damage to the top of the upper cylinder, the wall thickness of the top of the connection 101 is greater than the wall thickness of the bottom of the connection 101.

[0044] like Figure 3 As shown, in some examples, the top end of the middle cylinder 201 is connected to the bottom end of the upper cylinder. Specifically, the middle cylinder 201 and the upper cylinder are connected by welding. The middle cylinder 201 is used to define the axial position of the steel pipe pile. The axial position of the upper cylinder is ensured by the lifting lug 104 and the chain on the lifting lug 104. In order for the steel pipe pile to be driven into the ground, the axial position of the steel pipe pile relative to the pile driving device needs to be defined.

[0045] like Figure 5 As shown, in some examples, a protrusion 202 is provided on the outer wall of the middle cylinder 201. The steel pipe pile can abut against the protrusion 202 to limit the axial position of the steel pipe pile. During the process of driving the steel pipe pile into the ground, the steel pipe pile tends to move upward relative to the pile driving device. The protrusion 202 provides a reverse force to the steel pipe pile, ensuring that the steel pipe pile gradually enters the ground under the action of the pile hammer. Furthermore, in order to ensure that the force is evenly distributed throughout the steel pipe pile and to avoid excessive local force on the steel pipe pile, which would lead to damage, multiple protrusions 202 are provided. Each protrusion 202 is circumferentially distributed, that is, each protrusion 202 is evenly arranged around the outer wall of the middle cylinder 201.

[0046] like Figure 4 As shown, in some examples, the top end of the lower cylinder 301 is connected to the bottom end of the middle cylinder 201, and the lower cylinder 301 and the middle cylinder 201 are connected by welding. A large-diameter steel pipe pile is fitted onto the lower cylinder 301 and abuts against the protrusion 202. It can be understood that the outer diameter of the lower cylinder 301 corresponds to the inner diameter of the large-diameter steel pipe pile to prevent radial swaying during driving and to ensure the correct driving position of the large-diameter steel pipe pile.

[0047] Furthermore, a movable sleeve 302 is provided inside the lower cylinder 301. The movable sleeve 302 is movably connected to the lower cylinder 301. The movable sleeve 302 limits the axial position of the smaller diameter steel pipe pile, thereby driving the smaller diameter steel pipe pile into the ground. It can be understood that the pile driving device can drive large-diameter steel pipe piles located on the outer wall of the lower cylinder 301 independently, or it can drive small-diameter steel pipe piles located inside the movable sleeve 302 independently. When mixing steel pipe piles of different diameters, this avoids frequent changes of the pile driving device, saves manpower, and improves work efficiency.

[0048] Furthermore, a limiting plane 303 is provided at the top of the movable sleeve 302. When the steel pipe pile is inserted into the movable sleeve 302, the top of the steel pipe pile abuts against the limiting plane 303 to stabilize the axial relative position between the steel pipe pile and the movable sleeve 302. When the steel pipe pile moves axially within the lower cylinder 301, the movable sleeve 302 also moves accordingly. It can be understood that limiting the axial position of the movable sleeve 302 limits the axial position of the steel pipe pile, facilitating the transfer of force from the pile hammer to the steel pipe pile, allowing it to be driven into the ground. Specifically, a limiting component 304 is provided on the inner wall of the lower cylinder 301. The limiting component 304 protrudes from the inner wall of the lower cylinder 301 and abuts against the limiting plane 303, preventing the limiting plane 303 from moving upwards beyond the limiting component 304. Specifically, to ensure uniform force distribution across the limiting plane 303 and prevent damage caused by concentrated force, multiple limiting components 304 are provided, all with the same height. These components work together to block the limiting plane 303. The limiting components 304 are circumferentially distributed, meaning they are evenly distributed around the inner wall of the lower cylinder 301.

[0049] like Figure 6 As shown, in some examples, the limiting plane 303 is welded to the top of the movable sleeve 302, and the movable sleeve 302 is approximately located at the center of the limiting plane 303. To ensure the connection strength between the movable sleeve 302 and the limiting plane 303, the outer wall of the movable sleeve 302 is provided with multiple first ribs 305. The first ribs 305 are welded to the outer wall of the movable sleeve 302 and to the limiting plane 303. To ensure the supporting effect of each first rib 305, the first ribs 305 are circumferentially distributed.

[0050] In some examples, an installation structure is provided inside the lower cylinder 301. This installation structure guides the steel pipe pile into the movable sleeve 302 and also limits the axial position of the movable sleeve 302, preventing it from detaching from the lower cylinder 301. Further, the installation structure is located at the bottom end of the lower cylinder 301, with the movable sleeve 302 positioned between the installation structure and the limiting component 304. The installation structure includes a first installation cylinder 306, the inner diameter of which corresponds to the outer diameter of the steel pipe pile. This prevents radial swaying or tilting of the steel pipe pile after it passes through the first installation cylinder 306, ensuring the correct driving position and angle. It is understood that the first installation cylinder 306 is connected to the movable sleeve 302.

[0051] The mounting structure also includes a second rib 307, which connects the first mounting cylinder 306 to the inner wall of the lower cylinder 301. The second rib 307 is welded to the outer wall of the first mounting cylinder 306 and to the inner wall of the lower cylinder 301. Multiple second ribs 307 are provided, and each second rib 307 is circumferentially distributed to support the first mounting cylinder 306.

[0052] In some examples, the mounting structure also includes a second mounting cylinder 308, the top of which is connected to the bottom of the first mounting cylinder 306. The bottom opening of the second mounting cylinder 308 is relatively large, facilitating the passage of the steel pipe pile through the second mounting cylinder 308 and into the area of ​​the first mounting cylinder 306. It can be understood that the second mounting cylinder 308 connects to the first mounting cylinder 306 and extends to the bottom of the lower cylinder 301, with the diameter of the second mounting cylinder 308 gradually increasing from the bottom of the first mounting cylinder 306 to the bottom of the lower cylinder 301.

[0053] In some examples, to facilitate the installation of steel pipe piles on the outer wall of the lower cylinder 301, the diameter of the lower cylinder 301 gradually decreases at the bottom end. The steel pipe piles are installed along the bottom end of the lower cylinder 301, gradually correcting their position so as to abut against the protrusion 202.

[0054] This invention provides a method for pile driving construction, comprising:

[0055] When driving large-diameter steel pipe piles, the steel pipe piles are first erected to facilitate the connection between the steel pipe piles and the pile driving device. The pile driving device is inserted into the steel pipe pile through the conical port of the lower cylinder until the steel pipe pile abuts against the middle cylinder, thereby initially defining the axial position of the steel pipe pile and ensuring a stable connection between the steel pipe pile and the pile driving device.

[0056] During pile driving, the pile driver descends synchronously with the steel pipe pile. The pile gripper is connected to the side wall of the steel pipe pile via a gripping arm. Since the lifting lug protrudes from the side wall of the steel pipe pile, to avoid interference between the lifting lug and the pile gripper, the pile driving process stops when the lifting lug of the steel pipe pile is about to pass through the pile gripper. The gripping arm of the pile gripper is then opened and detached from the side wall of the steel pipe pile, allowing the lifting lug of the steel pipe pile to pass through the space between the gripping arm and the steel pipe pile. At this point, pile driving continues until the lifting lug of the steel pipe pile passes the position of the pile gripper, at which point pile driving stops.

[0057] After the lifting lugs of the steel pipe pile pass through the pile gripper, the descent of the steel pipe pile is no longer hindered. The gripper arm is then reconnected to the side wall of the steel pipe pile to continue the descent. As the steel pipe pile continues to fall, the pile gripper gradually transitions to the pile delivery device, and the steel pipe pile finally falls to the preset position.

[0058] To ensure the accuracy of the steel pipe pile position, the positional deviation of the steel pipe pile is measured. When the positional deviation is less than the preset deviation value, the pile gripper is opened and the pile driving work begins.

[0059] When driving small-diameter steel pipe piles, the steel pipe pile is first passed through the first installation sleeve and inserted into the movable sleeve. The limiting plane of the movable sleeve abuts against the limiting component, thereby limiting the axial position of the small-diameter steel pipe pile, facilitating pile driving. It can be understood that the pile gripper holds the steel pipe pile to facilitate its positioning.

[0060] After the steel pipe pile is driven to the preset position, the positional deviation of the steel pipe pile is measured. When the positional deviation is less than the preset deviation, the clamp arm of the pile gripper is opened to carry out the pile driving work. It can adapt to the driving of piles of different diameters, which is convenient and fast.

[0061] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pile feeding device for a pile driving vessel, characterized in that, include: The upper cylinder body, the top of which can be inserted into the pile hammer replacement sleeve; The middle cylinder is connected at its top end to the bottom end of the upper cylinder, and the middle cylinder is used to define the axial position of the large-diameter steel pipe pile. The lower cylinder is connected at its top end to the bottom end of the middle cylinder. A large-diameter steel pipe pile can be sleeved on the lower cylinder and abut against the middle cylinder. A movable sleeve is provided inside the lower cylinder and is movably connected to the lower cylinder. The movable sleeve is used to limit the axial position of the small-diameter steel pipe pile. The top of the movable sleeve is provided with a limiting plane, and the inner wall of the lower cylinder is provided with a limiting component. The limiting component protrudes from the inner wall of the lower cylinder. There are multiple limiting components, each with the same height and circumferentially distributed. The limiting plane abuts against the bottom end of each limiting component.

2. The pile feeding device for a pile driving vessel according to claim 1, characterized in that, The limiting plane is welded to the top of the movable sleeve. The outer wall of the movable sleeve is provided with a plurality of first ribs, each of which is welded to the limiting plane. The first ribs are distributed in a circular pattern, and the steel pipe pile can be inserted into the movable sleeve.

3. The pile feeding device for a pile driving vessel according to claim 2, characterized in that, An installation structure is provided inside the lower cylinder. The installation structure is located at the bottom end of the lower cylinder. The movable sleeve is located between the installation structure and the limiting component. The installation structure includes a first installation cylinder and a second rib. The first installation cylinder is connected to the movable sleeve. Multiple second ribs are provided. Each second rib connects the first installation cylinder to the inner wall of the lower cylinder. Each second rib is circumferentially distributed. The steel pipe pile can be inserted into the first installation cylinder.

4. The pile feeding device for a pile driving vessel according to claim 3, characterized in that, The mounting structure further includes a second mounting cylinder, the top end of which is connected to the bottom end of the first mounting cylinder, and the second mounting cylinder extends to the bottom end of the lower cylinder. The diameter of the second mounting cylinder gradually increases from the bottom end of the first mounting cylinder to the bottom end of the lower cylinder.

5. The pile feeding device for a pile driving vessel according to claim 1, characterized in that, The outer wall of the middle cylinder is provided with protrusions, and there are multiple protrusions. Each protrusion is circumferentially distributed, and the steel pipe pile can abut against each of the protrusions.

6. The pile feeding device for a pile driving vessel according to claim 1, characterized in that, The upper cylinder includes a connecting part, a transition part, and an extension part. The connecting part is located at the top of the upper cylinder and can be inserted into the pile hammer replacement sleeve. The extension part is located at the bottom of the upper cylinder and connects to the middle cylinder. The transition part is located between the connecting part and the extension part. The outer diameter of the connecting part is smaller than the outer diameter of the extension part. The diameter of the transition part gradually increases from the top to the bottom.

7. The pile feeding device for a pile driving vessel according to claim 6, characterized in that, The side wall of the transition section is provided with lifting lugs, which are distributed in a circle. A chain is provided on the lifting lugs, and the chain can be connected to the pile hammer replacement sleeve.

8. The pile feeding device for a pile driving vessel according to claim 1, characterized in that, The diameter of the lower cylinder gradually decreases at the bottom end.

9. A pile driving construction method, using the pile driving device for a pile driving vessel as described in any one of claims 1 to 8, characterized in that: When driving large-diameter steel pipe piles, the steel pipe piles are first erected. The lower cylinder of the pile driving device of the pile driving vessel is inserted into the steel pipe pile. The steel pipe pile is connected to the pile driving device through the lifting lugs on the steel pipe pile to ensure the axial position between the steel pipe pile and the pile driving device is stable. The pile gripper is then connected to the side wall of the steel pipe pile through the gripping arm. The pile driver descends, driving the steel pipe pile down. When the lifting lug of the steel pipe pile is about to pass through the pile gripper, the pile driving process stops, the gripper arm is opened to facilitate the passage of the lifting lug of the steel pipe pile, and the pile driving continues until the lifting lug of the steel pipe pile passes through the pile gripper. Stop driving the pile, and connect the pile gripper to the side wall of the steel pipe pile again through the gripping arm, and drive the pile to the preset position; Measure the positional deviation of the steel pipe pile. Once the positional requirements are met, open the arm of the pile gripper to carry out the pile driving work. When driving small-diameter steel pipe piles, the steel pipe pile is inserted into the movable sleeve and the pile gripper holds the steel pipe pile. When the steel pipe pile is driven to the preset position, the positional deviation of the steel pipe pile is measured. If it meets the requirements, the clamp arm of the pile gripper is opened to carry out the pile driving work.

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