Piling device for offshore pile driving barge and offshore pile driving barge

Abstract

The invention discloses a pile driving device for an offshore pile driving barge and the offshore pile driving barge. The pile driving device comprises a pile driving mechanism and a pile driving mechanism, the floating buffering mechanism comprises a sliding shell and an elastic piece, the sliding shell is installed on the outer side of the pile hammer in a sliding mode, the elastic piece is arranged between the sliding shell and the pile hammer, and the sliding shell is suitable for being installed on a ship body; and the pile hammer can extrude and stretch the elastic piece when moving relative to the sliding shell. The elastic piece is arranged between the pile hammer and the sliding shell and can provide buffering between the pile hammer and the sliding shell, and vibration generated when the pile hammer works is reduced to be transmitted to the ship body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of offshore piling, and further relates to a piling device for an offshore piling ship and the offshore piling ship. BACKGROUND

[0002] With the rapid development of marine engineering construction such as cross-sea bridges, offshore wind power, and port terminals, the requirements for operation efficiency, safety, and equipment stability are continuously increasing in the offshore piling operation as a basic construction link. However, the current offshore piling process has the following two core pain points:

[0003] First, the piling hammer is heavy and bulky, and the transfer and posture adjustment (switching from lying storage to vertical piling) on the deck of the piling ship needs to rely on the coordinated operation of multiple external devices, which is complicated and time-consuming, and is easily affected by sea waves, resulting in a decrease in the positioning accuracy of the piling hammer.

[0004] Second, the intense vibration generated during the operation of the piling hammer will be directly transmitted to the deck of the piling ship through the piling frame, guide rail, and other components, which can easily cause wear and tear of the guide rail, deformation of the deck, and even resonance of the ship body, accelerating the fatigue damage of the ship structure, affecting the normal operation of other equipment on the ship, and threatening the safety of the operating personnel. SUMMARY

[0005] In view of the above technical problems, the present application aims to provide a piling device for an offshore piling ship and the offshore piling ship, which sets an elastic member between the piling hammer and the sliding shell, and the elastic member can provide a buffer between the piling hammer and the sliding shell, reducing the transmission of vibration generated during the operation of the piling hammer to the ship body.

[0006] In order to achieve the above-mentioned purpose, the present application aims to provide a piling device for an offshore piling ship, which comprises:

[0007] a piling mechanism, the piling mechanism comprising a piling hammer;

[0008] a floating buffer mechanism, the floating buffer mechanism comprising a sliding shell and an elastic member, the sliding shell being slidably mounted on the outer side of the piling hammer, the elastic member being arranged between the sliding shell and the piling hammer, the sliding shell being adapted to be mounted on the ship body; the piling hammer can press the elastic member when moving relative to the sliding shell.

[0009] In some embodiments, the side of the sliding shell towards the piling mechanism has a first sliding groove, the piling hammer has a first sliding block corresponding to the position of the first sliding groove, and the first sliding block is slidably mounted in the first sliding groove;

[0010] The elastic member comprises a first elastic member, which is installed in the first sliding groove and abuts against the inner wall of the first sliding groove at one end and against the first elastic member at the other end.

[0011] In some embodiments, the first elastic member is an air spring, the number of air springs is two, the two air springs are respectively installed on the upper and lower sides of the first sliding groove, the upper and lower surfaces of the first sliding block are respectively fixedly provided with a pressing column, and the ends of the pressing columns away from the first sliding block respectively abut against the air springs.

[0012] In some embodiments, the piling device further comprises a pushing mechanism, the pushing mechanism comprises a mounting frame and a telescopic rod, the mounting frame is installed on the deck of the ship body, the bottom of the sliding shell is rotatably installed at the front end of the mounting frame, one end of the telescopic rod is rotatably installed at the rear end of the mounting frame, and the other end of the telescopic rod is rotatably installed at the top of the sliding shell.

[0013] In some embodiments, the pushing mechanism further comprises a driving motor and a threaded rod, the threaded rod is adapted to be rotatably installed in the sliding groove of the ship body, the driving motor is fixedly installed in the ship body, and the output shaft of the driving motor is connected to the threaded rod.

[0014] The bottom of the mounting frame is provided with a guide rail block, the preset position of the guide rail block is provided with a threaded hole, the guide rail block is slidably installed in the sliding groove, and the threaded rod passes through the threaded hole on the guide rail block, when the driving motor drives the threaded rod to rotate in the sliding groove, the threaded rod can drive the guide rail block to slide along the sliding groove.

[0015] In some embodiments, the elastic member comprises a first piston cylinder and a second piston cylinder, the first piston cylinder is fixedly installed in the sliding shell, the second piston cylinder is fixedly installed in the pile hammer, and when the sliding shell is assembled in the pile hammer, the first piston cylinder and the second piston cylinder are arranged in an up-down manner along the axial extension direction of the pile hammer.

[0016] The floating buffer mechanism further comprises a piston rod, the upper and lower ends of the piston rod are respectively provided with a piston head; the piston rod is arranged between the first piston cylinder and the second piston cylinder, and the two piston heads are respectively slidably installed in the first piston cylinder and the second piston cylinder.

[0017] When the sliding shell slides relative to the pile hammer, the piston heads at the two ends of the piston rod slide in the first piston cylinder and / or the second piston cylinder.

[0018] In some embodiments, the piston rods are two-segmented structures, including a first piston rod, a second piston rod, and a shock absorber, the shock absorber being arranged between the first piston rod and the second piston rod.

[0019] In some embodiments, the number of the second piston cylinders is two, the two second piston cylinders being arranged along an axial direction and spaced apart from each other on the outside of the pile hammer, and the first piston cylinder being located between the two second piston cylinders.

[0020] The number of the piston rods is also two, one of the piston rods being arranged in each of the gaps between the first piston rod and the two second piston rods.

[0021] The first piston cylinder is provided with a piston port on each side facing the two second piston cylinders, and the two piston heads of the two piston rods are slidably arranged in the two piston ports, respectively.

[0022] In some embodiments, the floating buffering mechanism further includes a connecting cylinder arranged on the outer surface of the pile hammer, the connecting cylinder being formed with a movable slot, the two second piston cylinders being fixedly arranged at two ends of the connecting cylinder, and the first piston cylinder being located at a middle position of the movable slot and being capable of sliding in the movable slot.

[0023] According to another aspect of the present application, there is further provided a marine pile driver, including the pile driving device as described in any one of the above. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above features, technical characteristics, advantages and implementation modes of the present application will be further described in a clear and understandable manner in the following, in combination with the preferred embodiments and the accompanying drawings.

[0025] Figure 1 is a perspective structural schematic view of a marine pile driver according to a preferred embodiment of the present application;

[0026] Figure 2 is a structural schematic view of a pile hammer of a marine pile driver according to a preferred embodiment of the present application in a pile driving state;

[0027] Figure 3 is a structural schematic view of a pile hammer and a sliding shell of a marine pile driver according to a preferred embodiment of the present application;

[0028] Figure 4 is a sectional structural schematic view of a sliding shell of a marine pile driver according to a preferred embodiment of the present application from one viewing angle after the sliding shell is arranged on the pile hammer;

[0029] Figure 5 is a sectional structural schematic view of a sliding shell of a marine pile driver according to a preferred embodiment of the present application from another viewing angle after the sliding shell is arranged on the pile hammer.

[0030] Figure 6 is a perspective structural schematic view of a sliding shell of a marine pile driver of a preferred embodiment of the present application;

[0031] Figure 7 is an exploded structural schematic view of a pile driving mechanism and a floating buffer mechanism of a marine pile driver of a preferred embodiment of the present application.

[0032] Reference Signs:

[0033] 100, marine pile driver; 10, hull; 11, sliding groove; 20, pile driving device; 21, pushing mechanism; 211, mounting frame; 2111, guide rail block; 212, telescopic rod; 213, driving motor; 214, threaded rod; 22, pile driving mechanism; 221, pile hammer; 2211, first sliding block; 2212, pressing column; 2213, connecting cylinder; 22130, movable groove; 23, floating buffer mechanism; 231, sliding shell; 2311, first sliding groove; 232, elastic member; 2321, first elastic member; 2322, first piston cylinder; 2323, second piston cylinder; 2324, piston rod; 23241, piston head; 23242, first piston rod; 23243, second piston rod; 23244, shock absorber. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0035] In order to make the drawing simple, only the parts related to the invention are shown in each drawing, and they do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0036] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0037] In this document, unless otherwise indicated and limited, the terms "mounting", "connection", "coupling" should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0039] Reference Figures 1 to 7 The present application provides a kind of offshore pile driver 100, the offshore pile driver 100 includes ship body 10 and piling device 20.The piling device 20 includes push mechanism 21, piling mechanism 22 and floating buffer mechanism 23, the floating buffer mechanism 23 is installed to one side of the piling device 20, the push mechanism 21 includes mounting bracket 211 and telescopic rod 212, the mounting bracket 211 is installed to the deck of the ship body 10, the bottom of the floating buffer mechanism 23 is rotatably installed to the front end of the mounting bracket 211, one end of the telescopic rod 212 is rotatably installed to the rear end of the mounting bracket 211, the other end of the telescopic rod 212 is rotatably installed to the top of the floating buffer mechanism 23.It needs to point out that the front end of the mounting bracket 211 refers to the end close to the piling mechanism 22, the proximal end of the mounting bracket 211 refers to the end away from the piling mechanism 22.The telescopic rod 212 can drive the floating buffer mechanism 23 to rotate relative to the mounting bracket 211 when telescoping, to adjust the angle of the piling mechanism 22 relative to the deck of the ship body 10.

[0040] Specifically, the pile driving device 20 has a pile driving state and a non-pile driving state. In the pile driving state, the pile driving mechanism 22 has a first included angle with the deck of the ship body 10. Preferably, the first included angle is ninety degrees. In some embodiments, the first included angle can also be greater than or less than ninety degrees, such as eighty degrees or one hundred degrees, etc., to meet the needs of multi-angle pile driving. In the non-pile driving state, the pile driving mechanism 22 has a second angle with the deck of the ship body 10. Preferably, the second angle is close to zero degrees, that is, in the non-pile driving state, the pile driving mechanism 22 can be flipped to a flat state on the deck of the ship body 10. The first included angle is greater than the second angle, and rotating the floating buffer mechanism 23 around the connection between the floating buffer mechanism 23 and the mounting frame 211 can control the pile driving device 20 to switch between the pile driving state and the non-pile driving state without relying on external auxiliary equipment, simplifying the pile driving mechanism 22 posture adjustment operation.

[0041] Reference Figure 1 The pile driving mechanism 22 includes a pile hammer 221, and the floating buffer mechanism 23 includes a sliding shell 231 which is slidably mounted on the outer surface of the pile hammer 221, and the movement direction of the sliding shell 231 relative to the pile hammer 221 is the same as the movement direction of the hammer head of the pile hammer 221. The bottom of the sliding shell 231 is rotatably mounted on the mounting frame 211, and the end of the telescopic rod 212 away from the mounting frame 211 is rotatably mounted on the top of the sliding shell 231.

[0042] The floating buffer mechanism 23 further includes an elastic member 232 arranged between the sliding shell 231 and the pile hammer 221. When the pile driving device 20 is in the pile driving state and the pile hammer 221 is working to generate vibration, the pile hammer 221 will slide relative to the sliding shell 231, so that the elastic member 232 is deformed, thereby playing a buffering role between the pile hammer 221 and the sliding shell 231, reducing the vibration degree of the sliding shell 231.

[0043] Reference Figure 2 Further, the upper surface of the deck of the ship body 10 has a sliding groove 11. The pushing mechanism 21 further includes a driving motor 213 and a threaded rod 214, the threaded rod 214 is rotatably mounted in the sliding groove 11, the driving motor 213 is fixedly embeddedly mounted in the ship body 10, and the output shaft of the driving motor 213 is connected to the threaded rod 214, which can drive the threaded rod 214 to rotate in the sliding groove 11.

[0044] The bottom of the mounting frame 211 is provided with a guide rail block 2111, a preset position of the guide rail block 2111 is provided with a threaded hole, the guide rail block 2111 is slidably installed in the sliding groove 11, and the threaded rod 214 penetrates through the threaded hole in the guide rail block 2111. When the driving motor 213 drives the threaded rod 214 to rotate in the sliding groove 11, the threaded rod 214 can drive the guide rail block 2111 to slide along the sliding groove 11, so as to drive the mounting frame 211 to move the floating buffering mechanism 23 and the piling mechanism 22 relative to the ship body 10, change the position of the piling mechanism 22 relative to the ship body 10, adjust the working position of the piling hammer 221, reduce the moving frequency of the offshore piling ship 100, and improve the operation convenience.

[0045] Preferably, the guide rail block 2111 is embeddedly installed in the sliding groove 11, the opening of the sliding groove 11 is provided with a limiting protrusion, the limiting protrusion abuts against the top of the guide rail block 2111, the guide rail block 2111 can be limited, and the guide rail block 2111 is prevented from moving away from the sliding groove 11 when moving along the sliding groove 11.

[0046] For the convenience of description, one end of the ship body 10 on which the piling mechanism 22 is installed is defined as the front end, and the opposite end is the rear end. In the side view of the ship body 10, the shape of the mounting frame 211 is approximately triangular, and the height near one end of the piling mechanism 22 is lower, and the height far from one end of the piling mechanism 22 is higher. In some variant embodiments, in the side view of the ship body 10, the shape of the mounting frame 211 is approximately triangular, and the height near one end of the piling mechanism 22 is higher, and the height far from one end of the piling mechanism 22 is lower. In some variant embodiments, in the side view of the ship body 10, the height of one end of the mounting frame 211 on which the piling mechanism 22 is installed and the height of one end of the mounting frame 211 on which the piling mechanism 22 is not installed are substantially flush.

[0047] When the threaded rod 214 rotates to drive the guide rail block 2111 to move in the sliding groove 11, the side wall of the sliding groove 11 near one end of the piling mechanism 22 can provide support for the mounting frame 211, improving the stability of the mounting frame 211 when moving relative to the ship body 10. Specifically, the side surface of the mounting frame 211 is provided with a first limiting protrusion extending transversely, the side wall of the sliding groove 11 near one side of the piling mechanism 22 is provided with a sliding groove accommodating the mounting frame 211, the top opening of the sliding groove is provided with a second limiting protrusion extending transversely, and the first limiting protrusion and the second limiting protrusion cooperate to limit the mounting frame 211 in a direction perpendicular to the deck surface of the ship body 10.

[0048] Preferably, the telescopic rods 212 are hydraulic rods, and the number of the hydraulic rods is two, the top of each of the two hydraulic rods is rotatably connected to the top of the sliding shell 231, and the bottom of each of the two hydraulic rods is rotatably connected to the bottom of the mounting frame 211. When the two telescopic rods are extended or retracted, a symmetrical and stable force can be applied from the top of the sliding shell 231, which cooperates with the rotational connection between the mounting frame 211 and the sliding shell 231 to make the overturning process of the pile driving mechanism 22 and the floating buffer mechanism 23 more stable, avoid the pile hammer 221 from shaking during the posture switching, and improve the stability of the posture switching.

[0049] With reference to Figure 6 The side of the sliding shell 231 facing the pile driving mechanism 22 is provided with a first sliding groove 2311, and the position of the pile hammer 221 corresponding to the first sliding groove 2311 is provided with a first sliding block 2211, which is slidably installed in the first sliding groove 2311.

[0050] The elastic member 232 includes a first elastic member 2321, which is installed in the first sliding groove 2311 and abuts against the inner wall of the first sliding groove 2311 at one end and the other end of the first elastic member 2321. Preferably, the number of the first elastic members 2321 is two, which are respectively arranged on the upper and lower sides of the first sliding block 2211. Preferably, the first elastic member 2321 is a spring, for example but not limited to an air spring.

[0051] Preferably, the first sliding block 2211 is a T-shaped block, and the first sliding groove 2311 is a T-shaped groove adapted to the first sliding block 2211. The first sliding block 2211 and the first sliding groove 2311 are slidably connected, so that the pile hammer 221 and the sliding shell 231 are floatingly connected, which not only reserves space for the slight movement of the pile hammer 221 during operation, but also limits the lateral deviation of the pile hammer 221 to ensure the stability of the operation position of the pile hammer 221. Specifically, the inner wall of the first sliding groove 2311 is provided with a first limiting groove (not shown in the figure) extending in the lateral direction, and the side wall of the first sliding block 2211 is correspondingly provided with a first limiting block (not shown in the figure).

[0052] With reference to Figure 3The upper and lower surfaces of the first sliding block 2211 are fixedly provided with a top pressing column 2212. The upper and lower surfaces of the first sliding groove 2311 are fixedly provided with the air spring, and the surfaces of the two groups of air springs can respectively abut against the outer surface of the top pressing column 2212. When the pile hammer 221 generates vertical vibration, the top pressing column 2212 extrudes or stretches the air spring, and the air spring absorbs part of the vibration force through its elastic deformation, preliminarily weakens the vibration transmitted to the sliding shell 231, and reduces the impact of the vibration on the ship body 10.

[0053] It can be understood that, in some variant embodiments, the positions of the first sliding block 2211 and the first sliding groove 2311 can also be exchanged, for example, the first sliding groove 2311 is formed on the outer surface of the pile hammer 221, and the first sliding block 2211 is formed on the sliding shell 231.

[0054] The first elastic member 2321 and the first sliding block 2211 form a first-stage buffer mechanism.

[0055] Reference Figure 7 The elastic member 232 further includes a first piston cylinder 2322 and a second piston cylinder 2323. The first piston cylinder 2322 is fixedly installed on the sliding shell 231, the second piston cylinder 2323 is fixedly installed on the pile hammer 221, and when the sliding shell 231 is assembled on the pile hammer 221, the first piston cylinder 2322 and the second piston cylinder 2323 are arranged in an up-down manner along the axial extension direction of the pile hammer 221. The floating buffer mechanism 23 further includes a piston rod 2324, and the upper and lower ends of the piston rod 2324 are provided with piston heads 23241. The piston rod 2324 is arranged between the first piston cylinder 2322 and the second piston cylinder 2323, and the two piston heads 23241 are slidably installed in the first piston cylinder 2322 and the second piston cylinder 2323, respectively. When the sliding shell 231 slides relative to the pile hammer 221, the piston heads 23241 at both ends of the piston rod 2324 slide in the first piston cylinder 2322 and / or the second piston cylinder 2323, thereby playing a buffering and damping effect between the sliding shell 231 and the pile hammer 221. Preferably, the first piston cylinder 2322 and the second piston cylinder 2323 are gas cylinders. In some embodiments, the first piston cylinder 2322 and the second piston cylinder 2323 can also be hydraulic cylinders.

[0056] Reference Figure 4Further, the piston rod 2324 is a two-section structure, including a first piston rod 23242, a second piston rod 23243, and a shock absorber 23244, which is arranged between the first piston rod 23242 and the second piston rod 23243. Preferably, the shock absorber 23244 is a spring shock absorber. When the pile hammer 221 works to generate vibration, the pile hammer 221 slides relative to the sliding shell 231, the shock absorber 23244 can preliminarily absorb the vibration force, and the piston head 23241 moves to compress liquid or air in the first piston cylinder 2322 and / or the second piston cylinder 2323, further absorbing the vibration force, and multiple buffering provides multiple paths for vibration force attenuation.

[0057] Preferably, the number of the second piston cylinders 2323 is two, and the two second piston cylinders 2323 are arranged on the outside of the pile hammer 221 along the axial direction and are spaced apart from each other, and the first piston cylinder 2322 is located between the two second piston cylinders 2323. The number of the piston rods 2324 is also two, and one of the piston rods 2324 is installed in the gap between the first piston cylinder 2322 and each of the two second piston cylinders 2323. Preferably, the first piston cylinder 2322 is provided with a piston port on each side facing the two second piston cylinders 2323, and the two piston heads 23241 of the two piston rods 2324 are respectively and slidably installed in the two piston ports.

[0058] The floating buffering mechanism 23 further includes a connecting barrel 2213 installed on the outer surface of the pile hammer 221, the connecting barrel 2213 is formed with a movable groove 22130, and the two second piston cylinders 2323 are respectively and fixedly installed at both ends of the connecting barrel 2213, that is, at both ends of the movable groove 22130. The first piston cylinder 2322 is located at the middle position of the movable groove 22130, and the first piston cylinder 2322 can slide in the movable groove 22130.

[0059] Specifically, the vibration force generated by the pile hammer 221 during pile driving operation can be transmitted to the shock absorber 23244 through the connecting barrel 2213, and drive the piston rod 2324 to make compression air or liquid movement in the first piston cylinder 2322 and the second piston cylinder 2323, respectively, so as to realize buffering and attenuation of the vibration force, effectively reduce the transmission of the vibration force to the deck of the hull 10, reduce the damage of the vibration to the hull 10, and prolong the service life. Preferably, the number of the connecting barrels 2213 is two, and the two connecting barrels 2213 are respectively located on both sides of the first sliding block 2211, and the first piston cylinder 2322, the second piston cylinder 2323, and the piston rod 2324 are installed in the two connecting barrels 2213.

[0060] For example, the offshore piling ship 100 provided by the present application can adjust the position and attitude of the piling mechanism 22. The deck upper surface of the ship body 10 is provided with the sliding groove 11, and the driving motor 213 of the pushing mechanism 21 drives the threaded rod 214 to rotate in the sliding groove 11 after being started. The threaded rod 214 is threadedly matched with the guide rail block 2111, and the rotary motion of the threaded rod 214 is converted into the horizontal sliding motion of the guide rail block 2111 along the sliding groove 11. The mounting rack 211 fixedly installed on the top of the guide rail block 2111 moves laterally synchronously with the guide rail block 2111. The distal end of the mounting rack 211 is rotationally connected with the sliding shell 231 of the floating buffer mechanism 23, thereby driving the sliding shell 231 and the piling hammer 221 connected therewith to move relative to the ship body 10, so as to adjust the working position of the piling mechanism 22. When the telescopic rod 212 on the upper surface of the mounting rack 211 is telescopically extended or retracted, the sliding shell 231 can be flipped around the rotation point of the sliding shell 231, so as to adjust the angle of the piling mechanism 22 relative to the ship body 10.

[0061] The offshore piling ship 100 provided by the present application has a multi-stage buffer damping mechanism. The piling hammer 221 is floatingly connected with the movable shell 231, and the piling hammer 221 and the sliding shell 231 have a multi-stage buffer mechanism therebetween. In the first stage buffer mechanism, the piling hammer 221 drives the first sliding block 2211 and the top pressing column 2212 to move synchronously, the top pressing column 2212 abuts against the first elastic member 2321 in the first sliding groove 2311, the first elastic member 2321 absorbs part of the vertical vibration force by elastic deformation, and preliminarily weakens the vibration energy. In the second stage buffer mechanism, the vibration is transmitted to the shock absorber 23244 through the connecting cylinder 2213 at both ends of the piling hammer 221, the shock absorber 23244 drives the piston head 23241 to move in the first piston cylinder 2322 and the second piston cylinder 2323 by the piston rod on the upper and lower surfaces, respectively, to further attenuate the vibration force by the compressibility of air or liquid and the damping effect of the shock absorber 23244, and finally reduces the transmission of the vibration force to the ship body 10.

[0062] In use of the offshore pile driver 100 provided in the application, first, operation preparation is performed, the first sliding block 2211 on the outer surface of the pile hammer 221 shell is slidably assembled into the first sliding groove 2311 of the sliding shell 231, and it is ensured that the top pressing column 2212 preliminarily abuts against the first elastic member 2321. At the same time, the movable groove 22130 of the connecting cylinder 2213 is correspondingly assembled with the first piston cylinder 2322 on the sliding shell 231, and it is ensured that both ends of the piston rod 2324 are smoothly slid into the first piston cylinder 2322 and the second piston cylinder 2323 respectively. The operation position of the pile driving mechanism 22 is adjusted, the driving motor 213 of the pushing mechanism 21 is started, the driving motor 213 drives the threaded rod 214 to rotate, drives the guide rail block 2111 to slide along the sliding groove 11, and drives the sliding shell 231 and the pile hammer 221 to extend from the deck of the ship body 10 to the sea surface operation area through the mounting frame 211 until the pile hammer 221 reaches the target pile driving position, and then the driving motor 213 is closed. The posture of the pile driving mechanism 22 is adjusted, two groups of the telescopic rods 212 on the mounting frame 211 are started, the two groups of the telescopic rods 212 are synchronously elongated, the sliding shell 231 is slowly turned around the turning point of the mounting frame 211, the pile hammer 221 is gradually turned from the initial lying state to the vertical state, and then the telescopic rods 212 are stopped when the pile hammer 221 is vertically positioned. Pile driving operation is started, the pile hammer 221 is started to drive piles, and in the operation process, the vibration force generated by the pile hammer 221 is used to compress the first elastic member 2321 through the top pressing column 2212 to realize primary buffering, and at the same time, the vibration force is transmitted to the shock absorber 23244 through the connecting cylinder 2213, drives the piston head 23241 at both ends of the piston rod 2324 to compress air or liquid in the first piston cylinder 2322 and the second piston cylinder 2323 to realize secondary buffering, and further reduces the vibration transmitted to the ship body 10. After the pile driving operation is completed, the pile hammer 221 is closed first, then the telescopic rods 212 are controlled to contract, the sliding shell 231 is reversely turned, the pile hammer 221 is driven to return to the lying state, and finally the driving motor 213 is started to reverse, the threaded rod 214 drives the guide rail block 2111, the mounting frame 211, the sliding shell 231 and the pile hammer 221 to be retracted to the deck of the ship body 10, and the storage is completed.

[0063] The offshore pile driver 100 provided in the application has the following beneficial effects:

[0064] 1. Simplify the adjustment operation and improve the positioning accuracy: through the cooperation of the drive motor 213, the threaded rod 214, the guide rail block 2111 and the mounting frame 211 of the pushing mechanism 21, the pile hammer 221 can be smoothly adjusted along the sliding groove 11 to adjust the working position of the piling mechanism 22, without frequent movement of the ship body 10. Combined with the extension rod 212 to drive the sliding shell 231 to flip to realize the posture switching of the pile hammer 221, the whole process does not need to rely on external lifting equipment, avoiding the problem of external lifting shaking caused by sea waves, significantly improving the positioning accuracy of the pile hammer 221, and simplifying the adjustment operation process.

[0065] 2. Double buffering and shock absorption to protect equipment and ship body: the first sliding block 2211 and the first elastic member 2321 cooperate as a first-stage buffer; the shock absorber 23244, the piston rod 2324, the first piston cylinder 2322, and the second piston cylinder 2323 cooperate as a second-stage buffer; which can effectively attenuate the vibration force generated by the operation of the pile hammer 221, reduce the transmission of the vibration force to the deck of the ship body 10, thereby reducing the wear of the sliding groove 11 and the deformation risk of the deck, avoiding the ship resonance phenomenon, prolonging the service life of the ship body 10, the pushing mechanism 21, the floating buffer mechanism 23 and other core components, and protecting the normal operation of other equipment on the ship, ensuring the safety of the operating personnel.

[0066] 3. Reduce the operation time and improve the overall efficiency: without the need for multiple devices to adjust the posture of the pile hammer 221, and without the need for frequent movement of the ship body 10, the position and posture adjustment of the pile hammer 221 can be quickly completed through the linkage of the pushing mechanism 21 and the floating buffer mechanism 23, greatly shortening the preparation time before operation and the adjustment time during operation, improving the continuity and overall efficiency of offshore piling operation, and better adapting to the requirements of marine engineering on construction progress.

[0067] 4. Adapt to the offshore environment and enhance the operation stability: the components are tightly assembled (such as the sliding cooperation of the guide rail block 2111 and the sliding groove 11, and the floating cooperation of the first sliding block 2211 and the first sliding groove 2311), and the floating buffer mechanism 23 can cope with the instantaneous impact force of piling, reducing the influence of wind and vibration on the piling mechanism 22, so that the whole device can still maintain a stable operation state in the complex offshore environment, reducing the risk of operation interruption caused by environmental factors.

[0068] Those skilled in the art will understand that the embodiments of the application shown in the above description and the accompanying drawings are only examples and do not limit the application. The advantages of the application have been fully and effectively realized. The function and structural principle of the application have been shown and described in the embodiments, and the implementation of the application can be any modification or modification without departing from the principle.

Claims

1. A piling device for an offshore piling vessel, characterized in that, include: A piling mechanism, wherein the piling mechanism includes a piling hammer; A floating buffer mechanism includes a sliding shell and an elastic element. The sliding shell is slidably mounted on the outside of the pile driver, and the elastic element is disposed between the sliding shell and the pile driver. The sliding shell is adapted to be installed on the hull. When the pile driver moves relative to the sliding shell, it can compress and stretch the elastic element.

2. The piling device for an offshore piling vessel according to claim 1, characterized in that, The sliding shell of the pile driver has a first sliding groove on the side facing the pile driving mechanism, and the pile hammer has a first sliding block corresponding to the position of the first sliding groove. The first sliding block is slidably installed in the first sliding groove. The elastic element includes a first elastic element, which is installed in the first sliding groove, with one end of the first elastic element abutting against the inner wall of the first sliding groove and the other end abutting against the first elastic element.

3. The piling device for an offshore piling vessel according to claim 2, characterized in that, The first elastic element is an air spring, and there are two air springs. The two air springs are respectively installed on the upper and lower sides of the first sliding groove. The upper and lower surfaces of the first sliding block are fixedly provided with top pressure columns, and the ends of the top pressure columns away from the first sliding block abut against the air springs.

4. The piling device for an offshore piling vessel according to claim 1, characterized in that, The piling device further includes a pushing mechanism, which includes a mounting frame and a telescopic rod. The mounting frame is installed on the deck of the hull, the bottom of the sliding shell is rotatably installed on the front end of the mounting frame, one end of the telescopic rod is rotatably installed on the rear end of the mounting frame, and the other end of the telescopic rod is rotatably installed on the top of the sliding shell.

5. The piling device for an offshore piling vessel according to claim 4, characterized in that, The pushing mechanism further includes a drive motor and a threaded rod, the threaded rod being adapted to be rotatably mounted in a sliding groove of the hull, the drive motor being fixedly mounted in the hull, and the output shaft of the drive motor being connected to the threaded rod; The bottom of the mounting bracket is equipped with a guide rail block, and the guide rail block has a threaded hole at a preset position. The guide rail block is slidably mounted in the sliding groove, and the threaded rod passes through the threaded hole on the guide rail block. When the drive motor drives the threaded rod to rotate in the sliding groove, the threaded rod can drive the guide rail block to slide along the sliding groove.

6. The piling device for an offshore piling vessel according to any one of claims 1 to 5, characterized in that, The elastic element includes a first piston cylinder and a second piston cylinder. The first piston cylinder is fixedly installed on the sliding shell, and the second piston cylinder is fixedly installed on the pile hammer. When the sliding shell is assembled on the pile hammer, the first piston cylinder and the second piston cylinder are arranged vertically along the axial extension direction of the pile hammer. The floating buffer mechanism further includes a piston rod, with piston heads at both the upper and lower ends; the piston rod is disposed between the first piston cylinder and the second piston cylinder, and the two piston heads are slidably mounted on the first piston cylinder and the second piston cylinder, respectively. When the sliding shell slides relative to the pile hammer, the piston heads at both ends of the piston rod slide within the first piston cylinder and / or the second piston cylinder.

7. The piling device for an offshore piling vessel according to claim 6, characterized in that, The piston rod has a two-section structure, including a first piston rod, a second piston rod, and a shock absorber, with the shock absorber disposed between the first piston rod and the second piston rod.

8. The piling device for an offshore piling vessel according to claim 7, characterized in that, The number of second piston cylinders is two, and the two second piston cylinders are arranged at intervals along the axial direction on the outside of the pile hammer, with the first piston cylinder located between the two second piston cylinders; The number of piston rods is also two, with one piston rod installed in the gap between the first piston rod and the two second piston rods; The first piston cylinder has piston ports on its sides facing the two second piston cylinders, and the two piston heads of the two piston rods are slidably mounted on the two piston ports respectively.

9. The piling device for an offshore piling vessel according to claim 8, characterized in that, The floating buffer mechanism further includes a connecting cylinder installed on the outer surface of the pile hammer. The connecting cylinder forms a movable groove. Two second piston cylinders are respectively fixedly installed at both ends of the connecting cylinder. The first piston cylinder is located in the middle of the movable groove and can slide within the movable groove.

10. A marine piling vessel, characterized in that, The piling device includes any one of claims 1 to 9.

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