Pile diameter adjustable offshore pile driving device, offshore pile driving barge and pile driving method

Abstract

The invention discloses a pile diameter adjustable offshore pile driving device, an offshore pile driving barge and a pile driving method.The pile diameter adjustable offshore pile driving device is characterized in that the pile diameter adjustable offshore pile driving device comprises a base plate, two pile column guiding mechanisms and a band-type brake mechanism, the two pile column guiding mechanisms are slidably installed on the base plate, and the band-type brake mechanism is arranged on the base plate; a guide space is formed between the two pile column guide mechanisms in a surrounding manner, and the pile column guide mechanisms are controlled to transversely move relative to the center of the base plate; and after the two pile column guide mechanisms finish preliminary clamping and positioning of the pile column, the brake mechanism can lock the pile column. And by adjusting the distance between the two pile column guide mechanisms, the width of the guide space can be adjusted so as to adapt to the pile diameters with different sizes.

Description

Technical Field

[0001] This invention relates to the field of offshore piling, and further to an adjustable-diameter offshore piling device, an offshore piling vessel, and a piling method. Background Technology

[0002] Offshore piling vessels are ships used for piling operations on water. The hull is a steel box-type structure, and a piling frame is installed at the end of the deck. It can tilt forward and backward to adapt to the needs of driving inclined piles. Piling vessels are not self-propelled and are towed into place by push wheels. Piling vessels are widely used in the construction of bridges, docks, and water conservancy projects.

[0003] In current offshore piling operations, piling vessels need to be compatible with piles of different diameters (for example, bridge and wharf projects require different specifications of piles due to geological conditions and load-bearing requirements). However, existing piling vessels can usually only be compatible with fixed specifications of piles and cannot be flexibly adjusted according to changes in pile diameter.

[0004] To adapt existing offshore piling vessels to different pile diameters, the entire set of guide pile components needs to be disassembled and replaced. This not only increases equipment procurement and maintenance costs but also leads to construction interruptions and extends the work cycle. In addition, the disassembly and replacement process requires additional lifting equipment, and the rough seas at sea can easily cause components to shift or misalign during lifting, increasing operational safety risks and affecting the accuracy of subsequent piling. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to provide an adjustable-diameter offshore piling device, an offshore piling vessel, and a piling method. Two pile guide mechanisms are slidably mounted on a base plate, and a guide space is formed between the two pile guide mechanisms. By controlling the lateral movement of the pile guide mechanisms relative to the center of the base plate, the distance between the two pile guide mechanisms can be adjusted, thereby adjusting the width of the guide space to accommodate piles with different diameters.

[0006] To achieve the above objectives, the present invention aims to provide an adjustable-diameter offshore piling device, comprising: a base plate, a pile guide mechanism, and a brake mechanism. The number of pile guide mechanisms is two, each slidably mounted on the base plate. A guide space is formed between the two pile guide mechanisms. By controlling the lateral movement of the pile guide mechanisms relative to the center of the base plate, the distance between the two pile guide mechanisms can be adjusted, thereby adjusting the width of the guide space to accommodate piles with different diameters.

[0007] The brake mechanism is installed on the base plate and located above the pile guide mechanism. The pile clamped between the two pile guide mechanisms is also within the clamping range of the brake mechanism. After the two pile guide mechanisms complete the initial clamping and positioning of the pile, the brake mechanism can lock the pile.

[0008] In some embodiments, the pile guiding mechanism includes a first mounting frame, a laterally extending sliding groove at a preset position of the base plate, a sliding block on the side of the first mounting frame facing the base plate, the sliding block being adapted to the sliding groove, the sliding block being slidably mounted in the sliding groove, and controlling the sliding block to slide within the sliding groove can change the distance between the two first mounting frames to adjust the width of the guiding space.

[0009] In some embodiments, the substrate has a sliding opening at a predetermined position, the sliding opening connecting the side of the connecting cylinder near the pile guide mechanism and the side away from the pile guide mechanism; the first mounting bracket has a push plate extending toward the substrate on the side near the substrate, the push plate extending through the sliding opening to the side of the substrate away from the pile guide mechanism; the pile guide mechanism further includes a first telescopic member, the first telescopic member being disposed on the side of the substrate away from the first mounting bracket, and the first telescopic member being connected to the push plate, the first telescopic member being able to drive the push plate to slide within the sliding opening, so as to drive the sliding block to slide along the sliding groove.

[0010] In some embodiments, the first mounting frame has a mounting groove on the side away from the substrate, and rotating rollers are rotatably mounted on the top and bottom of the first mounting frame. A support plate is provided between the two rotating rollers, and the two rotating rollers and the support plate are all installed in the mounting groove. The pile guiding mechanism further includes a conveyor belt sleeved on the outside of the two rotating rollers and the support plate. When the pile is clamped between the two pile guiding mechanisms, the rotation of the rotating rollers can control the rise or fall of the pile.

[0011] In some embodiments, the pile guiding mechanism further includes a first driving member, a transmission rod, a first bevel gear, and a second bevel gear. The first bevel gear is mounted on the side of the first mounting frame near the base plate and is fixedly connected to the transmission column. The first driving member is mounted on the base plate, the transmission rod is fixedly connected to the output shaft of the first driving member, and the second bevel gear is sleeved on the transmission rod, with the first bevel gear meshing with the second bevel gear. When the first driving member drives the transmission rod to rotate, it can drive the second bevel gear to rotate synchronously. The second bevel gear can drive the first bevel gear to rotate synchronously. The first bevel gear drives the rotating roller to rotate, and the conveyor belt rotates synchronously, thereby enabling the pile between the two first mounting frames to rise or fall.

[0012] In some embodiments, the transmission rod includes a base rod and an anti-rotation protrusion extending outward from the surface of the base rod; the second bevel gear has a shaft hole at its middle position, and the inner wall of the shaft hole has an anti-rotation groove communicating with the shaft hole; when the second bevel gear is sleeved on the transmission rod, the base rod is inserted into the shaft hole, the anti-rotation protrusion is inserted into the anti-rotation groove, and the second bevel gear can slide along the length extension direction of the transmission rod.

[0013] In some embodiments, the brake mechanism further includes a second mounting bracket, the bottom of which is mounted on the top of the base plate; the brake mechanism further includes two clamping arms, which are rotatably mounted on the second mounting bracket, and a clamping space is formed between the two clamping arms, the position of which corresponds to the position of the guide space and is located above the guide space; when the pile is clamped between the two pile guide mechanisms, the two clamping arms are rotated relative to the second mounting bracket so that the two clamping arms move closer or further apart to clamp or release the pile.

[0014] In some embodiments, the brake mechanism further includes a control mechanism mounted on the second mounting frame. The control mechanism includes a second drive member, two worm gears, and worm wheels. The two worm wheels are spaced apart on one side of the second mounting frame. One end of each of the two clamping arms is fixedly mounted to one of the two worm wheels. The worm gear is located between the two worm wheels. The second drive member is mounted on the second mounting frame, and the output shaft of the second drive member is connected to the worm gear. When the second drive member drives the worm gear to rotate, it can drive the two worm wheels to rotate synchronously, thereby driving the two clamping arms to rotate relative to the second mounting frame.

[0015] According to another aspect of this application, a marine piling vessel is further provided, including the adjustable-diameter marine piling device described in any of the preceding claims.

[0016] According to another aspect of this application, a piling method based on the aforementioned offshore piling vessel is further provided, comprising:

[0017] According to the actual diameter of the pile to be driven, the first telescopic component is activated. The piston rod of the first telescopic component pushes the push plate to slide along the sliding opening, thereby driving the two sets of pile guide mechanisms to move towards the center of the base plate through the sliding block along the sliding groove until the two sets of pile guide mechanisms clamp the pile. At the same time, the second telescopic component is activated to adjust the height position of the brake mechanism in the base plate so that the clamping arm corresponds to the preset locking position of the pile.

[0018] The piles are hoisted to the center of the base plate using the hoisting equipment on the offshore piling vessel, so that the axis of the pile is roughly aligned with the axis of the guide space between the two pile guide mechanisms; the first drive unit is activated, and the output shaft of the first drive unit drives the transmission rod to rotate. Through the meshing transmission of the first bevel gear and the second bevel gear, the rotating roller is driven to rotate synchronously, thereby driving the conveyor belt to operate.

[0019] According to the preset piling angle, the second telescopic component is activated. The output shaft of the second telescopic component drives the worm gear to rotate. Through the meshing transmission between the worm gear and two sets of worm wheels, the two sets of clamping arms are driven to rotate synchronously towards the center to clamp the pile and ensure the stability of the pile position during subsequent angle rotation. The third telescopic component is activated. The piston rod of the third telescopic component extends and retracts, causing the base plate to rotate around the rotation point inside the convex frame, thereby adjusting the tilt angle of the base plate and the pile until the piling angle requirement is met. Attached Figure Description

[0020] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0021] Figure 1 This is a three-dimensional structural diagram of a marine piling vessel according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a three-dimensional structural schematic diagram of a preferred embodiment of the offshore piling vessel of the present invention from another perspective.

[0023] Figure 3 This is an exploded structural diagram of the piling device of a marine piling vessel according to a preferred embodiment of the present invention.

[0024] Figure 4 This is an exploded structural diagram of the piling device of a marine piling vessel according to a preferred embodiment of the present invention from another perspective.

[0025] Figure 5 This is an exploded structural diagram of the pile guiding mechanism of a marine piling vessel according to a preferred embodiment of the present invention.

[0026] Figure 6 This is a partial structural schematic diagram of the piling device of a marine piling vessel according to a preferred embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the second bevel gear and transmission rod of the offshore piling vessel according to a preferred embodiment of the present invention.

[0028] Icon labels:

[0029] 100. Offshore piling vessel; 10. Hull; 11. Convex frame; 20. Piling device; 21. Base plate; 211. Sliding groove; 212. Sliding opening; 213. Limiting plate; 214. Connecting cylinder; 215. Third mounting frame; 22. Pile guide mechanism; 220. Guide space; 221. First mounting frame; 2211. Sliding block; 2212. Push plate; 2210. Mounting groove; 222. First telescopic component; 223. Rotating roller; 2231. Transmission column; 2232. Synchronous pulley; 224. Support plate; 225. Conveyor belt; 226. First driving component; 2271. Transmission rod; 22711. Base rod; 22712. Anti-rotation protrusion; 2272. First bevel gear; 2273. Second bevel gear; 22731. Shaft hole; 22732. Anti-rotation groove; 228. Support frame; 23. Brake mechanism; 231. Second mounting frame; 232. Clamping arm; 2320. Clamping space; 233. Control mechanism; 2331. Second driving component; 2332. Worm gear; 2333. Worm wheel; 244. Second telescopic component; 245. Concave plate; 24. Third telescopic component. Detailed Implementation

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0031] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0032] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0033] In this document, 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] refer to Figures 1 to 7 This application provides an offshore piling vessel 100, which includes a hull 10 and a piling device 20. The piling device 20 is installed at one end of the hull 10, and preferably is an adjustable-diameter piling device. The piling device 20 of the offshore piling vessel 100 provided in this application can adjust the size of the pile it can hold, thus adapting to different pile diameters.

[0036] Specifically, the piling device 20 includes a base plate 21, a pile guide mechanism 22, and a brake mechanism 23. There are two pile guide mechanisms 22, each slidably mounted on the base plate 21, forming a guide space 220 between them. By controlling the lateral movement of each pile guide mechanism 22 relative to the center of the base plate 21, the distance between the two pile guide mechanisms 22 can be adjusted, thereby adjusting the width of the guide space 220 to accommodate piles of different diameters.

[0037] It should be noted that in this application, the surface of the deck of the offshore piling vessel 100 when it is carrying out piling operations on the sea surface is taken as the reference plane, the z-axis is perpendicular to the reference plane and pointing upwards, the x-axis is along the length of the deck in the reference plane, and the y-axis is along the length of the deck in the reference plane, where the horizontal direction is along the x-axis and the vertical direction is along the z-axis.

[0038] The brake mechanism 23 is mounted on the base plate 21 and located above the pile guide mechanism 22. During use, the pile is first placed between the two pile guide mechanisms 22, and then the pile guide mechanisms 22 are slid relative to the base plate 21, causing them to move closer to the center of the base plate 21, thus initially clamping and positioning the pile. The pile clamped between the two pile guide mechanisms 22 is also within the clamping range of the brake mechanism 23. After the two pile guide mechanisms 22 complete the initial clamping and positioning of the pile, the brake mechanism 23 can lock the pile, completing the coordinated action of positioning and locking.

[0039] The pile guide mechanism 22 includes a first mounting bracket 221, which is mounted on the base plate 21 and is capable of moving laterally relative to the base plate 21. A guide space 220 is formed between the first mounting brackets 221 of the two pile guide mechanisms 22. Sliding the first mounting brackets 221 relative to the base plate 21 and adjusting the distance between the two first mounting brackets 221 can adjust the width of the guide space 220.

[0040] Specifically, the base plate 21 has a laterally extending sliding groove 211 at a preset position. The first mounting bracket 221 has a sliding block 2211 on the side facing the base plate 21. The sliding block 2211 is adapted to the sliding groove 211 and is slidably mounted in the sliding groove 211. Controlling the sliding block 2211 to slide within the sliding groove 211 can change the distance between the two first mounting brackets 221, thereby adjusting the width of the guide space 220. The sliding block 2211 is embedded and slidably fitted within the sliding groove 211, which can limit the sliding direction of the first mounting bracket 221, prevent it from deviating during sliding, and ensure the stability of the pile guide mechanism 22 in adapting to different pile diameters.

[0041] refer to Figure 2 and Figure 3The base plate 21 has a sliding opening 212 at a predetermined position, which connects the side of the base plate 21 near the pile guide mechanism 22 and the side away from the pile guide mechanism 22. The first mounting bracket 221 has a push plate 2212 extending towards the base plate 21 on the side near the base plate 21. The push plate 2212 extends through the sliding opening 212 to the side of the base plate 21 away from the pile guide mechanism 22. The pile guide mechanism 22 further includes a first telescopic member 222, which is disposed on the side of the base plate 21 away from the first mounting bracket 221 and connected to the push plate 2212. The first telescopic member 222 can drive the push plate 2212 to slide within the sliding opening 212, thereby driving the sliding block 2211 to slide along the sliding groove 211. Preferably, the first telescopic member 222 is a telescopic rod, for example, but not limited to, a hydraulic rod.

[0042] Preferably, there are two sliding grooves 211, which are disposed on the substrate 21 at a predetermined distance from each other along the height direction of the substrate 21, and the sliding opening 212 is disposed between the two sliding grooves 211.

[0043] Preferably, the push plate 2212 is L-shaped, one side arm of the push plate 2212 is fixedly installed on the first mounting bracket 221, and the other side wall passes through the sliding opening 212 and is connected to the first telescopic member 222.

[0044] In a single step, the base plate 21 includes a connecting cylinder 214 and a third mounting bracket 215, the third mounting bracket 215 being mounted on one side of the connecting cylinder 214. The third mounting bracket 215 has two mutually spaced outwardly extending limiting plates 213 at both ends, with two first mounting brackets 221 located between the two limiting plates 213. The limiting plates 213 can limit the range of motion of the first mounting brackets 221 at both ends of the base plate 21. The sliding groove 211 and the sliding opening 212 are both formed in the third mounting bracket 215 and located between the two limiting plates 213.

[0045] refer to Figure 5The first mounting frame 221 has a mounting groove 2210. Rotating rollers 223 are rotatably mounted on the top and bottom of the first mounting frame 221. A support plate 224 is disposed between two rotating rollers 223, and both rotating rollers 223 and the support plate 224 are installed within the mounting groove 2210. The pile guiding mechanism 22 further includes a conveyor belt 225 sleeved on the outside of the two rotating rollers 223 and the support plate 224. When the pile is clamped between the two pile guiding mechanisms 22, the rotation of the rotating rollers 223 can control the raising or lowering of the pile.

[0046] Specifically, the rotating roller 223 includes a transmission column 2231 and a synchronous pulley 2232. The transmission column 2231 is rotatably mounted on the first mounting frame 221. The synchronous pulley 2232 is fixedly mounted at both ends of the transmission column 2231. The outer sides of the transmission column 2231 and the synchronous pulley 2232 are covered by the conveyor belt 225.

[0047] Preferably, the diameter of the rotating roller 223 is smaller in the middle and larger at both ends. That is, the outer surface of the rotating roller 223 is designed with an embedded arc surface. When it cooperates with the conveyor belt 225, it can better fit the outer wall of the cylindrical pile, increase the contact area with the pile, improve the clamping stability, and avoid rigid damage to the outer wall of the pile.

[0048] Correspondingly, the end of the support plate 224 facing the pile also has an embedded arc-shaped structure. On the one hand, the support plate 224 can provide support for the conveyor belt 225, preventing the conveyor belt 225 from deforming due to force when clamping the pile, and ensuring the stability of the clamping force. On the other hand, the embedded arc surface of the support plate 224 cooperates with the conveyor belt 225 to further fit the outer wall of the pile, reduce the gap between the pile and the support plate 224, improve the stability of the pile during the lowering process, and prevent the pile from deviating.

[0049] refer to Figure 6The pile guiding mechanism 22 further includes a first driving member 226, a transmission rod 2271, a first bevel gear 2272, and a second bevel gear 2273. The first bevel gear 2272 is mounted on the side of the first mounting bracket 221 near the base plate 21 and is fixedly connected to the transmission column 2231. The first driving member 226 is mounted on the base plate 21, the transmission rod 2271 is fixedly connected to the output shaft of the first driving member 226, and the second bevel gear 2273 is sleeved on the transmission rod 2271, with the first bevel gear 2272 meshing with the second bevel gear 2273. When the first driving member 226 drives the transmission rod 2271 to rotate, it can drive the second bevel gear 2273 to rotate synchronously. The second bevel gear 2273 can drive the first bevel gear 2272 to rotate synchronously. The first bevel gear 2272 drives the rotating roller 223 to rotate, and the conveyor belt 225 rotates synchronously, thereby driving the pile between the two first mounting brackets 221 to rise or fall.

[0050] Specifically, the transmission rod 2271 extends from one end of the base plate 21 to the other end of the base plate. A second bevel gear 2273 is respectively fitted at predetermined positions at both ends of the transmission rod 2271. The two second bevel gears 2273 mesh with the two first bevel gears 2272 of the two pile guide mechanisms 22. A single first driving member 226 can drive the two rotating rollers 223 of the two pile guide mechanisms 22 to rotate synchronously. In some embodiments, there are also two first driving members 226, and the output shafts of the two first driving members 226 are respectively connected to both ends of the transmission rod 2271. Preferably, the first driving member 226 is a motor.

[0051] refer to Figure 7 The transmission rod 2271 includes a base rod 22711 and an anti-rotation protrusion 22712 extending outward from the surface of the base rod 22711. Correspondingly, the second bevel gear 2273 has a shaft hole 22731 at its middle position, and the inner wall of the shaft hole 22731 has an anti-rotation groove 22732 communicating with the shaft hole 22731. When the second bevel gear 2273 is sleeved on the transmission rod 2271, the base rod 22711 is inserted into the shaft hole 22731, the anti-rotation protrusion 22712 is inserted into the anti-rotation groove 22732, and the second bevel gear 2273 can slide along the length extension direction of the transmission rod 2271.

[0052] Furthermore, the pile guiding mechanism 22 further includes a support frame 228 mounted on the side of the first mounting bracket 221 near the base plate 21. The support frame 228 is disposed adjacent to the first bevel gear 2272, and a portion of the second bevel gear 2273 is located between the first bevel gear 2272 and the support frame 228. The support frame 228 abuts against the side of the second bevel gear 2273 away from the first bevel gear 2272, thereby limiting the movement of the second bevel gear 2273. Preferably, the support frame 228 is a T-shaped frame.

[0053] When the first mounting bracket 221 slides relative to the substrate 21, the first mounting bracket 221 drives the first bevel gear 2272 and the support bracket 228 to move together. The first bevel gear 2272 or the support bracket 228 can push the second bevel gear 2273 to slide along the length extension direction of the transmission rod 2271. Specifically, the second bevel gear 2273 and the support bracket 228 are both mounted on the side of the first bevel gear 2272 away from the center of the substrate 21. When the first mounting bracket 221 moves relative to the substrate 21 towards the center of the substrate 21, the support bracket 228 pushes the second bevel gear 2273 to slide along the transmission rod 2271; when the first mounting bracket 221 moves relative to the substrate 21 away from the center of the substrate 21, the first bevel gear 2272 pushes the second bevel gear 2273 to slide along the transmission rod 2271.

[0054] refer to Figure 6 Furthermore, the brake mechanism 23 further includes a second mounting bracket 231, the bottom of which is mounted on the top of the base plate 21. The brake mechanism 23 further includes two clamping arms 232, which are rotatably mounted on the second mounting bracket 231, forming a clamping space 2320 between them. The position of the clamping space 2320 corresponds to the position of the guide space 220 and is located above the guide space 220. When the pile is clamped between the two pile guide mechanisms 22, rotating the two clamping arms 232 relative to the second mounting bracket 231 brings them closer together to clamp and lock the pile; controlling the two clamping arms 232 to rotate away from each other releases the pile.

[0055] The brake mechanism 23 further includes a control mechanism 233, which is mounted on the second mounting frame 231 and is used to control the rotation of the two clamping arms 232 relative to the second mounting frame 231.

[0056] Specifically, the control mechanism 233 includes a second driving member 2331, two worm gears 2332, and worm wheels 2333. The two worm wheels 2333 are spaced apart on one side of the second mounting bracket 231. One end of each of the two clamping arms 232 is fixedly mounted to one of the two worm wheels 2333. The worm gears 2332 are located between the two worm wheels 2333. The second driving member 2331 is mounted on the second mounting bracket 231, and its output shaft is connected to the worm gears 2332. When the second driving member 2331 drives the worm gears 2332 to rotate, it can drive the two worm wheels 2333 to rotate synchronously, thereby driving the two clamping arms 232 to rotate relative to the second mounting bracket 231. Preferably, the second driving member 2331 is a motor.

[0057] In some modified embodiments, the control mechanism 233 includes two telescopic rods mounted on the second mounting bracket 231. The two telescopic rods are connected to the clamping arm 232. By controlling the extension and retraction of the telescopic rods, the clamping arm 232 is driven to rotate relative to the second mounting bracket 231.

[0058] Preferably, the bottom of the second mounting bracket 231 is slidably mounted on the base plate 21, thereby allowing adjustment of the distance between the two clamping arms 232 of the brake mechanism 23 and the top of the base plate 21. Specifically, the brake mechanism 23 further includes a second telescopic member 244, which is mounted on the base plate 21 and connected to the second mounting bracket 231, enabling the second mounting bracket 231 to slide relative to the base plate 21. Preferably, the second telescopic member 244 is a telescopic rod, for example, but not limited to, a hydraulic rod.

[0059] Furthermore, the brake mechanism 23 further includes a concave plate 245, which is slidably mounted on the base plate 21. The bottom of the concave plate 245 is connected to the second telescopic member 244, and the second mounting bracket 231 is mounted on the top of the concave plate 245. The extension and retraction of the piston rod of the second telescopic member 244 can quickly push the concave plate 245 to slide along the base plate 21, thereby quickly adjusting the position of the second mounting bracket 231 and the clamping arm 232 without manual adjustment, saving preparation time. The stable thrust of the hydraulic rod allows the concave plate 245 to remain stable during sliding, avoiding shaking during adjustment and ensuring that the clamping arm 232 can accurately correspond to the preset locking position of the pile. Preferably, the concave plate 245 is slidably mounted inside the connecting cylinder 214, and the second telescopic member 244 is located inside the connecting cylinder 214.

[0060] refer to Figure 1 and Figure 2 Furthermore, the bottom of the base plate 21 is rotatably mounted to the hull 10. The piling device 20 further includes a third telescopic member 24, one end of which is connected to the hull 10, and the other end is connected to a preset position on the base plate 21. The third telescopic member 24 can drive the base plate 21 to rotate relative to the hull 10 to adjust the angle of the base plate 21 relative to the hull 10. Preferably, the third telescopic member 24 is a telescopic rod, for example, but not limited to, a hydraulic telescopic rod.

[0061] refer to Figure 1 and Figure 2 Furthermore, a convex frame 11 is fixedly installed on the deck surface of the hull 10. One end of the third telescopic member 24 is rotatably connected to the end of the convex frame 11 away from the base plate 21, and the other end of the third telescopic member 24 is rotatably connected to the middle or top part of the base plate 21. By extending and retracting the piston rod of the third telescopic member 24, the base plate 21 can be driven to rotate around the convex frame 11, thereby adjusting the tilt angle of the base plate 21 and the pile. Without the need to build an additional angle adjustment structure, the angle requirements under different piling scenarios can be met, improving the flexibility of equipment operation.

[0062] According to another aspect of this application, a piling method based on the offshore piling vessel described in the above embodiments is further provided, specifically including:

[0063] S1. Adaptation and Debugging: Based on the actual diameter of the pile to be driven, activate the first telescopic member 222. The piston rod of the first telescopic member 222 pushes the push plate 2212 to slide along the sliding opening 212, thereby driving the two sets of pile guide mechanisms 22 to move towards the center of the base plate 21 through the sliding block 2211 along the sliding groove 211 until the inner arc surface of the conveyor belt 225 of the two sets of pile guide mechanisms 22 clamps the pile, leaving a reasonable clamping gap; at the same time, activate the second telescopic member 244 to adjust the height position of the brake mechanism 23 in the base plate 21, so that the clamping arm 232 corresponds to the preset locking position of the pile, completing the adaptation and debugging of the equipment and the pile diameter;

[0064] S2. Pile Lowering and Preliminary Positioning: The pile is hoisted to the center area of ​​the base plate 21 using the hoisting equipment on the offshore piling vessel 100, so that the pile axis is approximately aligned with the axis of the guide space 220 between the two pile guide mechanisms 22; the first drive unit 226 is activated, and the output shaft of the first drive unit 226 drives the transmission rod 2271 to rotate. Through the meshing transmission of the first bevel gear 2272 and the second bevel gear 2273, the rotating roller 223 is driven to rotate synchronously, thereby driving the conveyor belt 225 to operate; under the guiding and conveying action of the conveyor belt 225, the pile is lowered smoothly, and at the same time, the two sets of pile guide mechanisms 22 form a flexible clamp on the pile through the conveyor belt 225 to prevent the pile from deviating and achieve preliminary positioning;

[0065] S3. Pile Locking, Angle Adjustment, and Pile Driving: Based on the preset pile driving angle, the second telescopic member 244 is activated. The output shaft of the second telescopic member 244 drives the worm gear 2332 to rotate. Through the meshing transmission between the worm gear 2332 and the two sets of worm wheels 2333, the two sets of clamping arms 232 are driven to rotate synchronously towards the center, forming a clamp around the pile, ensuring the stability of the pile position during subsequent angle rotation. The third telescopic member 24 is activated. The piston rod of the third telescopic member 24 extends and retracts, causing the base plate 21 to rotate around the rotation point inside the convex frame 11, thereby adjusting the tilt angle of the base plate 21 and the pile until the pile driving angle requirement is met. The pile driving mechanism of the pile driving vessel is activated to drive the locked pile, completing one pile driving process.

[0066] Through the process of S1 adaptation and debugging, S2 pile lowering and preliminary positioning, and S3 pile locking and driving, multiple technical effects are achieved: In S1, the distance between the two first mounting frames 221 is adjusted by the first telescopic component 222, and the height of the brake mechanism 23 relative to the base plate 21 is adjusted by the second telescopic component 244, so as to quickly complete the adaptation with the pile without replacing parts and shorten the operation preparation cycle; In S2, the conveyor belt 225 is driven by the first driving component 226, which not only realizes the smooth lowering of the pile, but also forms a flexible clamp through the conveyor belt 225 to avoid pile deviation; In S3, the clamping arm 232 is driven by the worm gear transmission to lock the pile, and the driving angle is adjusted by the third telescopic component 24 to ensure the stability of the pile position during the angle adjustment and driving process, ultimately improving the efficiency and accuracy of the pile driving operation, while reducing the operation risk in the wind and waves at sea.

[0067] Working principle:

[0068] 1. Pile diameter adaptation stage: According to the diameter of the pile to be driven, the first telescopic member 222 is activated. The piston rod of the first telescopic member 222 pushes the push plate 2212 to slide along the sliding opening 212, driving the two sets of the first mounting brackets 221 to move towards the center of the first mounting brackets 221 along the sliding groove 211 through the sliding block 2211 until the inner arc surface of the conveyor belt 225 of the pile guide mechanism 22 is adapted to the outer diameter of the pile. At the same time, the second telescopic member 244 is activated, pushing the concave plate 245 to slide along the base plate 21 to adjust the height of the brake mechanism 23 so that the clamping arm 232 corresponds to the preset locking position on the pile, completing the adaptation and debugging.

[0069] 2. Pile lowering and preliminary positioning stage: The pile is hoisted to the center of the base plate 21 using the hoisting equipment of the piling vessel, so that the axis of the pile is approximately aligned with the axis of the guide space 220 between the two first mounting brackets 221; the first driving component 226 is activated, which drives the transmission rod 2271 to rotate. Through the meshing transmission of the first bevel gear 2272 and the second bevel gear 2273, the rotating roller 223 is driven to rotate synchronously, thereby driving the conveyor belt 225 to operate; while conveying the pile, the conveyor belt 225 forms a flexible clamp on the pile to prevent the pile from deviating and achieve preliminary positioning.

[0070] 3. Pile locking and angle adjustment stage: The second drive member 2331 is activated, and the output shaft of the second drive member 2331 drives the worm gear 2332 to rotate. Through the meshing transmission between the worm gear 2332 and the two sets of worm wheels 2333, the clamping arm 232 is driven to rotate synchronously towards the center to form a firm clamp on the pile. Then the third telescopic member 24 is activated. The piston rod of the third telescopic member 24 extends and retracts, causing the base plate 21 to rotate around the rotation point inside the convex frame 11, adjusting the tilt angle of the first mounting frame 221 and the pile until the pile driving angle requirement is met.

[0071] 4. Piling stage: Start the piling mechanism of the piling vessel to drive the locked pile, and complete one piling process; throughout the process, the clamping of the pile guide mechanism 22 and the locking of the brake mechanism 23 work together to ensure the stability of the pile.

[0072] In summary, the technical effects of this invention are as follows:

[0073] 1. No need to replace parts, strong adaptability and low cost: The first mounting bracket 221 can be driven by the first telescopic component 222 to slide along the sliding groove 211 of the base plate 21, which can quickly adapt to piles of different diameters without disassembling and replacing the guide pile components. Compared with the traditional solution, it not only saves the time of disassembly and replacement and shortens the operation preparation cycle, but also avoids the procurement cost of additional guide pile components, and eliminates the safety risks of disassembling and replacing parts at sea.

[0074] 2. Smooth pile delivery and accurate initial positioning: In the pile guide mechanism 22, the first drive component 226 drives the rotating roller 223 to rotate synchronously through the first bevel gear 2272 and the second bevel gear 2273, which in turn drives the conveyor belt 225 to rotate. The conveyor belt 225 and the inner arc surface of the rotating roller 223 fit the pile to form a flexible clamping mechanism. This dual design ensures that the pile is lowered smoothly and will not cause initial positioning deviation due to delivery jamming or clamping offset, laying the foundation for subsequent pile driving accuracy. The conveyor belt 225 segments outside the synchronous pulley 2232 adopt a synchronous belt structure to ensure transmission synchronization and prevent the conveyor belt 225 from slipping.

[0075] 3. Secure pile locking and strong anti-interference capability: In the brake mechanism 23, the second driving member 2331 drives the clamping arm 232 to synchronously clamp the pile through the meshing transmission of the worm gear 2332 and the worm wheel 2333. The transmission between the worm wheel 2333 and the worm gear 2332 has a self-locking characteristic, which can resist the impact of pile driving and sea waves, and prevent the clamping arm 232 from loosening. At the same time, the position of the brake mechanism 23 can be precisely adjusted through the second telescopic member 244 to ensure that the clamping arm 232 corresponds to the pile locking point. The dual design ensures that the pile does not slide axially or deviate radially during the pile driving process, which significantly improves the pile driving accuracy.

[0076] 4. Flexible and adjustable pile driving angle, adaptable to multiple scenarios: The third telescopic component 24 can drive the base plate 21 to rotate around the convex frame 11, thereby adjusting the pile tilt angle without the need to build an additional angle adjustment frame. Compared with the traditional fixed angle guide pile frame, it can adapt to the pile driving angle requirements of different projects such as bridges and docks, and improve the flexibility of equipment operation.

[0077] 5. Stable structure, suitable for marine environment: The sliding components (sliding block 2211 and sliding groove 211, pushing plate 2212 and sliding opening 212, concave plate 245 and base plate 21) are all embedded, which limits the sliding trajectory of the components and avoids the components from shaking due to sea waves; at the same time, the transmission structure such as bevel gear and worm gear is supported by fixed brackets to ensure transmission stability - the overall structural design can resist the interference of complex marine environment and ensure the reliability of operation.

[0078] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments; any variations or modifications can be made to the implementation of the present invention without departing from these principles.

Claims

1. A marine piling device with adjustable pile diameter, characterized in that, include: The system includes a base plate, a pile guide mechanism, and a brake mechanism. The number of pile guide mechanisms is two, and the two pile guide mechanisms are slidably mounted on the base plate. A guide space is formed between the two pile guide mechanisms. By controlling the lateral movement of the pile guide mechanisms relative to the center of the base plate, the distance between the two pile guide mechanisms can be adjusted, thereby adjusting the width of the guide space to accommodate piles with different diameters. The brake mechanism is installed on the base plate and located above the pile guide mechanism. The pile clamped between the two pile guide mechanisms is also within the clamping range of the brake mechanism. After the two pile guide mechanisms complete the initial clamping and positioning of the pile, the brake mechanism can lock the pile.

2. The adjustable-diameter offshore piling device according to claim 1, characterized in that, The pile guide mechanism includes a first mounting frame, and a laterally extending sliding groove is provided at a preset position of the base plate. The first mounting frame has a sliding block on the side facing the base plate. The sliding block is adapted to the sliding groove and is slidably mounted in the sliding groove. Controlling the sliding block to slide in the sliding groove can change the distance between the two first mounting frames to adjust the width of the guide space.

3. The adjustable-diameter offshore piling device according to claim 2, characterized in that, The substrate has a sliding opening at a predetermined position, which connects the side of the connecting cylinder near the pile guide mechanism and the side away from the pile guide mechanism. The first mounting bracket has a push plate extending towards the substrate on the side near the substrate. The push plate extends through the sliding opening to the side of the substrate away from the pile guide mechanism. The pile guide mechanism further includes a first telescopic member, which is disposed on the side of the substrate away from the first mounting bracket and is connected to the push plate. The first telescopic member can drive the push plate to slide within the sliding opening, thereby driving the sliding block to slide along the sliding groove.

4. The adjustable-diameter offshore piling device according to claim 2, characterized in that, The first mounting frame has a mounting groove on the side away from the base plate. Rotating rollers are rotatably mounted on the top and bottom of the first mounting frame. A support plate is provided between the two rotating rollers. The two rotating rollers and the support plate are all installed in the mounting groove. The pile guiding mechanism further includes a conveyor belt sleeved on the outside of the two rotating rollers and the support plate. When the pile is clamped between the two pile guiding mechanisms, the rotation of the rotating rollers can control the rise or fall of the pile.

5. The adjustable-diameter offshore piling device according to claim 4, characterized in that, The pile guiding mechanism further includes a first driving member, a transmission rod, a first bevel gear, and a second bevel gear. The first bevel gear is mounted on the side of the first mounting bracket near the base plate, and the first bevel gear is fixedly connected to the transmission column. The first driving component is mounted on the base plate, the transmission rod is fixedly connected to the output shaft of the first driving component, the second bevel gear is sleeved on the transmission rod, and the first bevel gear meshes with the second bevel gear; When the first driving member drives the transmission rod to rotate, it can drive the second bevel gear to rotate synchronously. The second bevel gear can drive the first bevel gear to rotate synchronously. The first bevel gear drives the rotating roller to rotate, and the conveyor belt rotates synchronously, thereby driving the pile between the two first mounting frames to rise or fall.

6. The adjustable-diameter offshore piling device according to claim 5, characterized in that, The transmission rod includes a base rod and an anti-rotation protrusion extending outward from the surface of the base rod; the second bevel gear has a shaft hole at its middle position, and the inner wall of the shaft hole has an anti-rotation groove communicating with the shaft hole; when the second bevel gear is sleeved on the transmission rod, the base rod is inserted into the shaft hole, the anti-rotation protrusion is inserted into the anti-rotation groove, and the second bevel gear can slide along the length extension direction of the transmission rod.

7. The adjustable-diameter offshore piling device according to claim 1, characterized in that, The brake mechanism further includes a second mounting bracket, the bottom of which is mounted on the top of the base plate; the brake mechanism further includes two clamping arms, which are rotatably mounted on the second mounting bracket, and a clamping space is formed between the two clamping arms. The position of the clamping space corresponds to the position of the guide space and is located above the guide space; when the pile is clamped between the two pile guide mechanisms, the two clamping arms are rotated relative to the second mounting bracket so that the two clamping arms move closer or further apart to clamp or release the pile.

8. The adjustable-diameter offshore piling device according to claim 7, characterized in that, The brake mechanism further includes a control mechanism mounted on the second mounting frame. The control mechanism includes a second drive member, two worm gears, and worm wheels. The two worm wheels are spaced apart on one side of the second mounting frame. One end of each of the two clamping arms is fixedly mounted on the two worm wheels. The worm gear is located between the two worm wheels. The second drive member is mounted on the second mounting frame, and the output shaft of the second drive member is connected to the worm gear. When the second drive member drives the worm gear to rotate, it can drive the two worm wheels to rotate synchronously, thereby driving the two clamping arms to rotate relative to the second mounting frame.

9. A marine piling vessel, characterized in that, The device includes the adjustable-diameter offshore piling device according to any one of claims 1 to 8.

10. The piling method based on the offshore piling vessel as described in claim 9, characterized in that, include: According to the actual diameter of the pile to be driven, the first telescopic component is activated. The piston rod of the first telescopic component pushes the push plate to slide along the sliding opening, thereby driving the two sets of pile guide mechanisms to move towards the center of the base plate through the sliding block along the sliding groove until the two sets of pile guide mechanisms clamp the pile. At the same time, the second telescopic component is activated to adjust the height position of the brake mechanism in the base plate so that the clamping arm corresponds to the preset locking position of the pile. The piles are hoisted to the center of the base plate using the hoisting equipment on the offshore piling vessel, so that the axis of the pile is approximately coincident with the axis of the guide space between the two pile guide mechanisms. When the first drive unit is activated, its output shaft drives the transmission rod to rotate. Through the meshing transmission of the first bevel gear and the second bevel gear, the rotating roller rotates synchronously, thereby driving the conveyor belt to run. According to the preset pile driving angle, the second telescopic component is activated. The output shaft of the second telescopic component drives the worm to rotate. Through the meshing transmission between the worm and two sets of worm wheels, the two sets of clamping arms are driven to rotate synchronously towards the center to clamp the pile and ensure the stability of the pile position during subsequent angle rotation. Activate the third telescopic component. The piston rod of the third telescopic component extends and retracts, causing the base plate to rotate around the rotation point inside the convex frame, thereby adjusting the tilt angle of the base plate and the pile until the piling angle requirements are met.

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