Combined positioning device for improving parking stability of rotary pile driving barge

Abstract

The utility model discloses a combined positioning device for improving the parking stability of a rotary pile driving barge, which relates to the technical field of ship and ocean engineering, comprises a main barge body, a full-rotation pile driver and a positioning winch, and is characterized by further comprising a barge stabilizing pile assembly which comprises a barge stabilizing pile body, a ship stabilizing pile rack is arranged on the ship stabilizing pile body in the vertical direction of the ship stabilizing pile body, a ship stabilizing pile lifting transmission unit and a ship stabilizing pile lifting driving device in transmission connection with the ship stabilizing pile lifting transmission unit are arranged on the main ship body, the ship stabilizing pile lifting transmission unit comprises a gear structure, and the gear structure is in meshed connection with the ship stabilizing pile rack. The ship stabilizing pile lifting driving device is used for driving the gear structure on the ship stabilizing pile lifting unit to work so as to drive the ship stabilizing pile rack to ascend and descend and linkage the ship stabilizing pile body to ascend and descend so as to achieve positioning and positioning releasing. The utility model has the effects that the standing stability of a ship is obviously improved, so that a better operation foundation is provided for piling operation, and the accuracy and the operation efficiency of the piling operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship and ocean engineering, and more specifically, to a combined positioning device for improving the station-keeping stability of a lifting rotary pile driving vessel. Background Art

[0002] A pile driving vessel refers to a vessel used for underwater pile driving operations. The hull is of a steel box structure, and a pile driving frame is installed at the end of the deck, which can be tilted forward and backward to meet the need of driving inclined piles. The pile driving vessel is a non-self-propelled vessel and is towed into position by a pusher or tugboat. Pile driving vessels are widely used in the construction of bridges, docks, and water conservancy projects. The engineering vessels dedicated to underwater pile driving operations mainly include luffing pile driving vessels, rotary pile driving vessels, swinging pile driving vessels, and pile driving vessels with hanging dragon mouths, etc. No matter what kind of pile driving vessel, when operating at sea, the vessel is affected by the environment of wind, waves, and currents, resulting in the movement of the vessel. However, the pile driving operation has its particularity. The positioning of the pile is mainly achieved through GPS. Therefore, too large a movement amplitude of the vessel will have an adverse impact on the pile driving operation. Excessive vessel movement will also have an adverse impact on the hammering operation, thereby affecting the pile driving operation efficiency. In severe environmental conditions, the operation may even have to be stopped.

[0003] Traditional mooring-positioning pile driving vessels, such as Figure 1-2 shown, include a main hull 1, a full-rotation pile driver 2, and a number of positioning winches 3. Among them, a living cabin 11 is arranged at the rear of the main hull 1, and a cab 12 is arranged above the living cabin 11, which is mainly used for guiding the pile driving operation. The main hull 1 is provided with a main deck 13 that continuously runs through the head and tail. The main deck 13 is the main operation deck surface of the pile driving vessel; the full-rotation pile driver 2 is arranged at the position near the head of the main hull 1, and a cylinder 21 is arranged below it and connected to the main hull 1. The full-rotation pile driver 2 is connected to a pile driving frame 22 through a boom, and a pile hammer 23 is arranged at the top of the pile driving frame 22; a number of positioning winches 3 are arranged on the main deck 13. As shown in the figure, there are 8, and the positioning winches 3 arranged from the head to the tail are numbered NO.1-NO.8 in sequence. The positioning winches 3 are connected to positioning anchors 31 through steel wires. During operation, after the vessel is in place, the above-mentioned NO.1-NO.8 positioning anchors 31 are thrown out in sequence, and the cables are taken in and tightened through the positioning winches 3, so as to realize the so-called mooring positioning of the vessel. Among them, the number and specifications of the positioning anchors are determined according to calculations and vary from vessel to vessel.

[0004] For traditional pile driving vessels, although the mooring positioning system can basically position the vessel, and various measures such as selecting appropriate main dimensions and increasing the number of moorings can be taken to improve the mooring positioning effect of the vessel, its stability is greatly affected by wind, waves, and currents, and it is difficult to meet the higher requirements for vessel stability. Especially for rotary pile driving vessels, the pile driver can rotate 360°, and the center of gravity of the vessel will change at any time, further exacerbating the movement of the vessel. For the operation requirements with high precision requirements for pile driving operations and high requirements for the stability of the vessel itself, traditional pile driving vessels still have limitations. Utility Model Content

[0005] In view of this problem in practical application, the utility model aims to propose a combined positioning device for improving the stability of a rotary pile-driving ship. The specific scheme is as follows:

[0006] A combined positioning device for improving the stability of a rotary pile-driving ship comprises a main hull, a full-rotation pile driver and a positioning winch, and also comprises a stabilizing pile assembly, wherein the stabilizing pile assembly comprises a stabilizing pile body, on which a stabilizing pile rack is provided along its vertical direction, the main hull is provided with a stabilizing pile lifting transmission unit and a stabilizing pile lifting drive device which is transmission-connected to the stabilizing pile lifting transmission unit, wherein the stabilizing pile lifting transmission unit comprises a gear structure which is meshingly connected with the stabilizing pile rack, and the stabilizing pile lifting drive device is used to drive the gear structure on the stabilizing pile lifting unit to drive the stabilizing pile rack to lift and lower and link the stabilizing pile body to lift and lower for positioning and releasing the positioning.

[0007] Furthermore, at least one ship stabilizing assembly is provided on each of the left and right sides of the midship position of the main hull.

[0008] Furthermore, the ship stabilizing pile body is a square or circular pile body structure, and the end of the ship stabilizing pile body is a pile tip.

[0009] Furthermore, both sides of the stabilizing pile body are provided with stabilizing pile racks.

[0010] Furthermore, the ship stabilizing pile lifting transmission unit also includes a gear box, the gear structure is located in the gear box, and the gear structure adopts a planetary gear transmission structure.

[0011] Furthermore, a confining well is provided on the main hull, and the main body of the ship-stabilizing pile passes through the confining well near the end portion, and a clearance is fitted between the confining well and the main body of the ship-stabilizing pile.

[0012] Furthermore, the ship stabilizing pile lifting drive device is also provided with a lifting guide roller, and the lifting guide roller is in contact with the side surface of the ship stabilizing pile body.

[0013] Furthermore, a brake device is also provided on the ship stabilizing pile lifting drive device, and the brake device is used to brake in time when an emergency occurs during the lifting of the ship stabilizing pile body.

[0014] Furthermore, the ship stabilizing pile lifting and lowering drive device adopts any one of motor drive and hydraulic drive.

[0015] Furthermore, the main hull is provided with an anti-vacuum adsorption system near the bottom of the stabilizing pile body, and the anti-vacuum adsorption system is used to prevent excessive adsorption force when pulling out the pile.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] A combined positioning device for improving the station-keeping stability of a rotary pile driving vessel. Based on the original mooring positioning system, a ship stabilization system is added to the starboard and port sides at the middle position of the main hull to jointly position the ship with the original mooring positioning system. For this type of vessel, namely the rotary pile driving vessel, the station-keeping stability of the ship can be significantly improved, thereby providing a better operating foundation for pile driving operations and improving the accuracy and efficiency of pile driving operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of a pile driving vessel in the prior art;

[0019] Figure 2 is the top view of a pile driving vessel in the prior art;

[0020] Figure 3 is the front view of an embodiment in the present utility model;

[0021] Figure 4 is the top view of an embodiment in the present utility model;

[0022] Figure 5 is the side view of the ship stabilization pile assembly in an embodiment of the present utility model;

[0023] Figure 6 is the top view of the ship stabilization pile assembly in an embodiment of the present utility model.

[0024] Reference numerals: 1, main hull; 11, living quarters; 12, cab; 13, main deck; 2, full-rotation pile driver; 21, cylinder body; 22, pile driving frame; 23, pile hammer; 3, positioning winch; 31, positioning anchor;

[0025] 4, ship stabilization pile assembly; 41, ship stabilization pile body; 411, pile tip; 42, ship stabilization pile rack; 43, ship stabilization pile lifting transmission unit; 431, gear structure; 432, gearbox; 44, ship stabilization pile lifting drive device; 441, drive motor; 45, shaft well; 46, lifting guide roller; 47, braking device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] As Figure 3-4, The existing pile driving vessel mooring and positioning system includes a main hull 1, a full-rotation pile driver 2 provided on the main hull 1, and a positioning winch 3. Among them, the main hull 1 is provided with a living cabin 11, a cab 12, and a main deck 13. A cylinder 21 is provided below the full-rotation pile driver 2 and is connected by a boom and a pile driving frame 22. A pile hammer 23 is provided at the top of the pile driving frame 22. Preferably, there are 8 positioning winches 3, and the positioning winches 3 are connected to positioning anchors 31 through steel wire ropes. During operation, the positioning winches 3 cooperate with the positioning anchors 31 to achieve mooring and positioning, and then the full-rotation pile driver 2 is used to achieve full-rotation pile driving.

[0028] A combined positioning device for improving the station-keeping stability of a rotary pile driving vessel. On the basis of the unchanged existing mooring and positioning system, a set of ship-stabilizing system is added. The ship-stabilizing system includes at least two ship-stabilizing pile assemblies 4, and preferably two in this embodiment. See Figure 3-4 , The two ship-stabilizing pile assemblies 4 are respectively located at appropriate positions on the starboard and port sides of the midship of the main hull 1. In addition, according to actual use requirements, the number of the ship-stabilizing pile assemblies 4 can be adjusted adaptively. Preferably, the number of the ship-stabilizing pile assemblies 4 on the starboard and port sides of the main hull 1 is the same during the adjustment process, which is conducive to positioning balance to ensure the overall positioning stability of the pile driving vessel.

[0029] Combined with Figure 5-6 , The ship-stabilizing pile assembly 4 includes a ship-stabilizing pile body 41. The ship-stabilizing pile body 41 is arranged along the direction perpendicular to the main hull 1. A ship-stabilizing pile rack 42 is provided on the ship-stabilizing pile body 41 along its vertical direction. A ship-stabilizing pile lifting transmission unit 43 and a ship-stabilizing pile lifting driving device 44 are provided on the main hull 1. The working end of the ship-stabilizing pile lifting driving device 44 is in transmission connection with the ship-stabilizing pile lifting transmission unit 43. Among them, the ship-stabilizing pile lifting transmission unit 43 includes a gear structure 431, and the gear structure 431 is meshed and connected with the ship-stabilizing pile rack 42.

[0030] During operation, the ship-stabilizing pile lifting driving device 44 is started to drive the gear structure 431 on the ship-stabilizing pile lifting unit to transmit. Since the gear structure 431 is meshed and connected with the rack, the ship-stabilizing pile rack 42 is driven to lift and drive the ship-stabilizing pile body 41 to lift and lower. The ship-stabilizing pile body 41 descends into the seabed mud to position the ship. Combined with the ship's mooring system, the ship is jointly positioned; after the operation is completed, the ship-stabilizing pile body 41 rises to break away from the seabed and is pulled out to release the positioning, preparing for the operation of the next working station.

[0031] More specifically: The ship-stabilizing pile body 41 is a square or circular pile body structure. The length of the ship-stabilizing pile is determined according to the requirements of the operation water area and can be long or short.

[0032] The end of the ship-stabilizing pile body 41 is a pile tip 411, and no pile shoe is provided. The pile tip 411 adopts a conical structure, which is conducive to the ship-stabilizing pile entering and pulling out of the mud.

[0033] Among them, the pile tip 411 can adopt the pile tip 411 structure disclosed in the patent authorization number CN208949962U to ensure the reliability of the pile body.

[0034] The body 41 of the ship stabilizer pile is a steel structure to ensure sufficient strength to resist the loads applied by the external environment after being inserted into the seabed.

[0035] Both sides of the body 41 of the ship stabilizer pile are provided with ship stabilizer pile racks 42. Correspondingly, a set of ship stabilizer pile lifting transmission units 43 and ship stabilizer pile driving devices are arranged on both sides of the body 41 of the ship stabilizer pile. The purpose of arranging racks on both sides is to make the force symmetric.

[0036] The ship stabilizer pile lifting transmission unit 43 further includes a gearbox 432, and a gear structure 431 is located inside the gearbox 432. The gear structure 431 includes at least one gear, and a gear shaft is connected to the center of the gear.

[0037] The ship stabilizer pile lifting driving device 44 adopts any one of motor driving and hydraulic driving.

[0038] In a possible embodiment, when the ship stabilizer pile lifting driving device 44 is driven by a driving motor 441, the output end of the driving motor 441 is in transmission connection with the gear shaft, and the gear is in meshing connection with the ship stabilizer pile rack 42. When the driving motor 441 starts, it drives the gear shaft to rotate, so as to drive the gear to rotate. Torque is transmitted through the driving motor 441 and the gear structure 431, thereby driving the rack to lift and realizing the lifting of the body 41 of the ship stabilizer pile.

[0039] In addition, to solve the problems of large volume and low transmission efficiency of a single gear, in another possible embodiment, the gear structure 431 also adopts a planetary gear transmission structure to reduce the volume of the gear structure 431 and improve the transmission efficiency.

[0040] Furthermore, a brake device 47 is also provided on the ship stabilizer pile lifting driving device 44. The brake device 47 is used to brake in time when an emergency occurs during the lifting of the body 41 of the ship stabilizer pile.

[0041] In a possible embodiment, the brake device 47 adopts a brake band, and the brake band performs a braking action by a hydraulic cylinder actuator. The brake band is respectively in transmission connection with the output end of the hydraulic cylinder and the gear shaft (not shown in the figure) on the gear structure 431. When braking, the hydraulic cylinder drives the brake band and the brake band is transmitted to the gear structure 431, thereby realizing braking.

[0042] In another possible embodiment, the brake device 47 can also adopt a lifting positioning pin column as given in the patent authorization announcement number CN218112924U, and the lifting positioning pin column is used to directly position and brake the ship stabilizer pile rack 42.

[0043] It should be noted that any braking device 47 in the prior art that can achieve the braking action on the gear structure 431 shall be regarded as falling within the protection scope of the present application.

[0044] Specifically, a cofferdam 45 is further provided on the main hull 1. The cofferdam 45 is located at the corresponding position at the bottom of the main hull 1. The near-end part of the ship stabilizer body 41 passes through the cofferdam 45 for lifting and lowering actions. The inner diameter of the cofferdam 45 is slightly larger than the maximum outer contour of the ship stabilizer body 41, and there is a clearance fit between the cofferdam 45 and the ship stabilizer body 41.

[0045] An elevating guide roller 46 is further provided on the ship stabilizer elevating drive device 44. The elevating guide roller 46 is installed on a fixed bracket on the main hull 1 (not shown in the figure), and the elevating guide roller 46 is in contact with the side surface of the ship stabilizer body 41. Preferably, the elevating guide rollers 46 are respectively located near each corner on both side surfaces of the ship stabilizer body 41, and the elevating guide rollers 46 are symmetrically arranged with respect to the ship stabilizer body 41, which is beneficial to force balance. The purpose of setting the elevating guide rollers 46 is to play a guiding role during the vertical lifting and lowering process of the ship stabilizer body 41, so as to improve the stability of the lifting and lowering of the ship stabilizer body 41.

[0046] An anti-vacuum adsorption system (not shown in the figure) is further provided at the bottom of the main hull 1 near the ship stabilizer body 41. The anti-vacuum adsorption system is used to prevent the problem of difficult pile pulling caused by excessive adsorption force during pile pulling. The anti-vacuum adsorption system can adopt a high-pressure flushing water / compressed air flushing system. As a prior art, the high-pressure flushing water / compressed air flushing system can be directly applied to the present application and will not be elaborated here.

[0047] This embodiment provides a combined positioning device for improving the station-keeping stability of a rotary pile driving ship. On the basis of the existing mooring positioning system, a set of ship stabilizer system is added. The two perform combined positioning on the full-rotation pile driving ship, improving the operation stability of this type of ship, and improving the accuracy and operation efficiency of pile driving operations.

[0048] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A combined positioning device for improving the stability of a rotary pile-driving ship, comprising a main hull, a full-rotation pile driver and a positioning winch, characterized in that: It also includes a stabilizing pile assembly, which includes a stabilizing pile body, on which a stabilizing pile rack is provided along its vertical direction, and the main hull is provided with a stabilizing pile lifting transmission unit and a stabilizing pile lifting drive device which is transmission-connected to the stabilizing pile lifting transmission unit, wherein the stabilizing pile lifting transmission unit includes a gear structure, which is meshingly connected with the stabilizing pile rack, and the stabilizing pile lifting drive device is used to drive the gear structure on the stabilizing pile lifting unit to drive the stabilizing pile rack to lift and lower and link the stabilizing pile body to lift and lower for positioning and releasing the positioning.

2. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The ship stabilizing assembly is provided with at least one set on each of the port and starboard sides of the midship position of the main hull.

3. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The ship stabilizing pile body is a square or circular pile body structure, and the end of the ship stabilizing pile body is a pile tip.

4. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: Both sides of the ship stabilizing pile body are provided with ship stabilizing pile racks.

5. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The ship stabilizing pile lifting transmission unit also includes a gear box. The gear structure is located in the gear box. The gear structure adopts a planetary gear transmission structure.

6. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The main hull is also provided with a surrounding well, and the main body of the ship stabilizing pile passes through the surrounding well near the end portion, and a clearance is matched between the surrounding well and the main body of the ship stabilizing pile.

7. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The ship stabilizing pile lifting drive device is also provided with a lifting guide roller, and the lifting guide roller is in contact with the side surface of the ship stabilizing pile body.

8. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The ship stabilizing pile lifting and driving device is also provided with a brake device, and the brake device is used to brake in time when an emergency occurs during the lifting and lowering of the ship stabilizing pile body.

9. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The ship stabilizing pile lifting and lowering driving device is driven by a motor or a hydraulic pressure.

10. The combined positioning device for improving the stability of a rotary pile-driving vessel according to claim 1, characterized in that: The main hull is also provided with an anti-vacuum adsorption system at the bottom near the main body of the ship stabilizing pile, and the anti-vacuum adsorption system is used to prevent excessive adsorption force when pulling out the pile.

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