A docking method based on a foldable ship docking connection system

Abstract

The present invention relates to a docking method based on a foldable ship docking connection system, comprising a target ship, wherein the target ship is equipped with a ship docking connection system. The target ship is fixed to the berthing ship via the ship docking connection system. After being fixed, the target ship and the berthing ship are arranged in a T-shape. The ship docking connection system includes two subsystems arranged at intervals along the length of the target ship. By providing a foldable ship docking connection system, the berthing ship can be mechanically limited so that the berthing ship and the target ship are fixed together, thereby effectively reducing relative movement between the two ships and reducing mutual interference between the two ships. At the same time, by adopting a T-shaped fixing method, the positioning of the berthing ship and the target ship is facilitated, and the efficiency of the two ships is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship docking, in particular to a docking method based on a foldable ship docking connection system. Background Art

[0002] With the rapid development of economic globalization, maritime freight transportation plays an increasingly important role. When transporting cargo over long distances, berthing vessels are needed to provide supplies to the carrier or to unload cargo from the carrier. Because ships are subject to six degrees of freedom (DOF) motion caused by waves—surge, heave, roll, pitch, and pitch—specialized systems are required to ensure the safety of berthing.

[0003] The existing method for ship docking mainly adopts the method of cable fastening, which is relatively effective in limiting the relative transverse and longitudinal motion between the target ship and the berthed ship, but has a relatively limited ability to limit the relative vertical and horizontal motions between the two. In particular, the relative motion between the two in high sea conditions can easily lead to collisions. At the same time, the motion characteristics of ships of different tonnages and types at sea vary greatly, which will cause mutual interference and seriously affect the safety of ship docking. Summary of the Invention

[0004] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a docking method based on a foldable ship docking connection system. By setting up a foldable ship docking connection system, the berthing ship can be mechanically limited, so that the berthing ship and the target ship are fixed together, thereby effectively reducing the relative movement between the two ships and reducing the mutual interference between the two ships; at the same time, by adopting a T-shaped fixing method, the positioning of the berthing ship and the target ship is facilitated, and the efficiency of the two ships is improved.

[0005] The technical solutions adopted in the present invention are as follows:

[0006] A docking method based on a foldable ship docking connection system includes a target ship, wherein the target ship is equipped with a ship docking connection system. The target ship is fixed to the berthing ship via the ship docking connection system. After being fixed, the target ship and the berthing ship are arranged in a T-shape. The ship docking connection system includes two subsystems arranged at intervals along the length of the target ship.

[0007] The structure of a single subsystem is as follows: it includes a hydraulic cylinder installed on the top surface of the target ship, the output end of the hydraulic cylinder is connected to a folding truss, one end of which is hinged to the target ship. The folding truss includes a plurality of foldable truss groups, which are mounted together via connecting shafts. Adjacent truss groups fold in opposite directions. The folding truss is also connected to a cable car via a steel wire rope. The cable cars are symmetrically installed on the top surface of the target ship on both sides of the hydraulic cylinder. The outer shell of the cable car is provided with an inclined surface for placing the folding truss.

[0008] Positioning bolts for fixing the folding trusses are installed on the side of the target ship, and airbags are installed on the side of the target ship and on the opposite sides of the two folding trusses;

[0009] When the target ship docks with the berthing ship through the ship docking connection system, the following steps are included:

[0010] S1. Both the target vessel and the berthed vessel arrive at the target location;

[0011] S2. The hydraulic cylinders in both subsystems extend simultaneously, lifting the corresponding folded trusses from the inclined surface of the cable car. Simultaneously, the cable car follows the movement of the corresponding folding trusses and releases the steel wire ropes. When the hydraulic cylinders raise the folding trusses to a position perpendicular to the top surface of the target vessel, the steel wire ropes are tensioned and pre-tensioned, ensuring the folding trusses remain folded. The hydraulic cylinders then extend further, collaborating with the steel wire ropes to lower the folding trusses.

[0012] S3. After the hydraulic cylinder is fully extended, the folded truss is arranged parallel to the top surface of the target ship and located outside the target ship, and the hydraulic cylinder is parallel to the top surface of the target ship;

[0013] S4. The hydraulic cylinder then fully retracts, causing the folded truss to fully unfold. During the unfolding process, the cable car releases the wire rope at a constant speed, following the movement of the folding truss.

[0014] S5. The truss group is then fixed to the side of the target ship 1 by positioning bolts;

[0015] S6. The berthing vessel moves from the target position into the space between the two folding trusses. When the bow of the berthing vessel enters the space between the two folding trusses, the airbags on the target ship's side and on the opposite sides of the two folding trusses are opened. The airbags fill the gap between the berthing vessel and the folding trusses.

[0016] S7. After the berthing ship completes its mission, it retracts the airbag and begins to sail away from the target ship.

[0017] S8. After the berthing vessel exits between the two folding trusses, the target vessel begins to retract the folding trusses.

[0018] S9. Remove the positioning bolts between the target ship and the truss assembly, then extend the hydraulic cylinder again until it is fully extended, driving the folding truss in the deployed state back to the folded state. At this time, the folded truss in the folded state is parallel to the top surface of the target ship;

[0019] S10. The cable car retracts the wire rope to lift the folding truss, slowly retracting the hydraulic cylinder. The hydraulic cylinder then provides support to keep the folding truss in its folded position. When the cable car, via the wire rope, lifts the folding truss to a point perpendicular to the top of the target vessel, the wire rope begins to unload, and the hydraulic cylinder continues to retract, causing the folding truss to continue rotating toward the cable car.

[0020] S11. The hydraulic cylinder is fully retracted, placing the folded truss on the inclined surface of the cable car shell.

[0021] As a further improvement of the above technical solution:

[0022] Each folding truss includes a single set of truss groups. The structure of each truss group includes several truss plates, and two adjacent truss plates are hinged.

[0023] In S1., before the target ship arrives at the target location, the ship docking connection system needs to be installed on the target ship, including the following steps:

[0024] The two subsystems of the ship docking connection system are symmetrically arranged at a set distance along the length of the target ship. The set distance is determined according to the beam data of the berthing ship.

[0025] The folding truss includes three truss groups, which are cross-rotatably connected by connecting shafts and bearings. The folding direction of the middle truss group is opposite to the folding direction of the truss groups on both sides thereof.

[0026] A single truss group includes four truss plates;

[0027] Each folding truss is equipped with two hydraulic cylinders. Each hydraulic cylinder is equipped with five hydraulic rods. The length of each hydraulic rod is related to the length of the truss plate. The outermost hydraulic rod is connected to one end of the top truss plate of the middle truss group by bolts.

[0028] The steel wire ropes are respectively connected to one end of the top truss plates of the truss groups on both sides, and the other ends of the top truss plates of the truss groups on both sides are hinged to the top of the target ship;

[0029] The target ship had eight airbags arranged on its side, along with twenty-four locating bolts;

[0030] The positioning bolts are arranged in groups of twelve, with each group corresponding to a folding truss, and the eight airbags are located between two groups of positioning bolts.

[0031] In S1., when the target ship is in the sailing condition, the folding truss is in the folded state. At this time, the hydraulic cylinder is fully retracted and forms a certain angle with the top surface of the target ship.

[0032] In S4., the fully retracted stroke of the hydraulic cylinder is shorter than the fully extended stroke of the hydraulic cylinder.

[0033] The target ship is also equipped with pedals.

[0034] In S6., when the moored ship is close to the airbag on the side of the target ship, the step is lowered from the target ship to the moored ship.

[0035] In S7., after the berthing ship completes the mission, if the pedal is lowered onto the berthing ship, it is necessary to recover the pedal back to the target ship.

[0036] The beneficial effects of the present invention are as follows:

[0037] The present invention has a compact structure and is easy to operate. By installing a foldable ship docking connection system for the target ship, it is easy to install and disassemble. The folding mode or the unfolding mode can be selected according to the working condition of the target ship. In the unfolding mode, the berthing ship can be well fixed, thereby improving the operating stability and safety of the two ships during the docking process and reducing the mutual influence between the two ships.

[0038] The present invention also has the following advantages:

[0039] (1) The ship docking connection system of the present invention is in a folded state when the target ship is in a navigation condition, which can effectively save space and reduce the impact on the navigation of the target ship.

[0040] (2) In the present invention, an airbag is installed in the ship docking connection system. The airbag can fill the gap between the berthing ship and the truss group, so that the ship docking connection system can meet the docking requirements of berthing ships of different sizes. At the same time, the airbag has a good buffering effect, which effectively reduces the impact of the berthing ship on the truss group.

[0041] (3) The folding directions of the two adjacent truss groups in the folding truss of the present invention are opposite, so that there is sufficient movement space between the truss groups. During the unfolding process of the folding truss, the two truss groups connected with the wire rope will not interfere with the movement of the hydraulic cylinder; at the same time, the cross-arranged truss groups can provide sufficient supporting force to effectively limit the mutual movement between the target ship and the berthed ship.

[0042] (4) In the present invention, a safety airbag is installed on the side of the target ship to avoid collision between the target ship and the berthed ship.

[0043] (5) In the present invention, the berthing ship and the target ship fixed to each other are in a T-shape, and the bow of the berthing ship is fixed to the side of the target ship through the ship docking connection system. Since the width of the ship is much smaller than the length, the T-shaped fixing method is more convenient for positioning the berthing ship. At the same time, the relative movement between the two ships is less and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1This is a schematic diagram of the folding truss of the present invention in a folded state on a target ship.

[0045] Figure 2 for Figure 1 side view.

[0046] Figure 3 for Figure 1 A partial enlarged view of the top view.

[0047] Figure 4 This is a partially enlarged schematic diagram of the folding truss in the present invention when it is parallel to the top surface of the target ship.

[0048] Figure 5 for Figure 4 side view.

[0049] Figure 6 for Figure 4 Top view of .

[0050] Figure 7 It is a partially enlarged schematic diagram of the folding truss of the present invention in an unfolded state on the target ship.

[0051] Figure 8 for Figure 7 side view.

[0052] Figure 9 for Figure 7 Top view of .

[0053] Figure 10 Schematic diagram of the target ship and the berthed ship in the present invention under operating conditions.

[0054] Figure 11 for Figure 10 main view.

[0055] Figure 12 for Figure 10 Top view of .

[0056] Figure 13 It is a structural schematic diagram of the folding truss in the present invention.

[0057] Figure 14 for Figure 13 Exploded diagram.

[0058] Figure 15 Schematic diagram of the structure of the truss group in the present invention.

[0059] Among them: 1. Target ship; 2. Berthed ship; 3. Hydraulic cylinder; 4. Cable car; 5. Wire rope; 6. Connecting shaft; 7. Positioning bolt; 8. Truss plate; 9. Airbag; 10. Pedal; 11. Truss group; 12. Folding truss. DETAILED DESCRIPTION

[0060] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0061] Example 1:

[0062] like Figures 1-15 As shown, the docking method based on the foldable ship docking connection system of this embodiment includes a target ship 1, and the target ship 1 is equipped with a ship docking connection system. The target ship 1 is fixed to the berthing ship 2 through the ship docking connection system. After being fixed, the target ship 1 and the berthing ship 2 are arranged in a T shape. The ship docking connection system includes two sets of subsystems arranged at intervals along the length direction of the target ship 1; the structure of a single subsystem is as follows: it includes a hydraulic cylinder 3 installed on the top surface of the target ship 1, the output end of the hydraulic cylinder 3 is connected to the folding truss 12, and one end of the folding truss 12 is connected to the target ship 1 The hinged, folding truss 12 includes a plurality of foldable truss groups 11, which are mounted together via a connecting shaft 6. The folding directions of two adjacent truss groups 11 are opposite. The folding truss 12 is also connected to the cable car 4 via a steel wire rope 5. The cable car 4 is symmetrically mounted on the top surface of the target ship 1 on both sides of the hydraulic cylinder 3. The outer shell of the cable car 4 is provided with an inclined surface for placing the folding truss 12. The side of the target ship 1 is equipped with positioning bolts 7 for fixing the folding truss 12. The side of the target ship 1 and the opposite sides of the two folding trusses 12 are equipped with airbags 9.

[0063] Each folding truss 12 includes a single array of truss groups 11. The structure of each truss group 11 is as follows: it includes a plurality of truss plates 8, and two adjacent truss plates 8 are hinged;

[0064] The target ship 1 is also equipped with a pedal 10 .

[0065] The folding truss 12 is mainly used to fix the moored vessel 2 and limit the freedom of the moored vessel 2 along the long side direction of the target vessel 1 .

[0066] The airbag 9 has a certain hardness and can provide a fairly high load-bearing capacity after being filled with air. It can fill the distance between the berthing ship 2 and the target ship 1 and the truss group 11, thereby meeting the docking needs of berthing ships 2 of different sizes; at the same time, the airbag 9 also has a buffering function to avoid possible collisions between ships.

[0067] The hydraulic cylinder 3 , the cable car 4 and the steel wire rope 5 cooperate with each other to achieve smooth deployment and recovery of the folding truss 12 .

[0068] The positioning bolts 7 are used to fix the truss assembly 11 to prevent the folding truss 12 from shifting during the process of limiting the position of the berthing vessel 2, thereby ensuring the working reliability of the folding truss 12.

[0069] When the target ship 1 docks with the berthing ship 2 through the ship docking connection system, the following steps are included:

[0070] S1. Both target ship 1 and berthed ship 2 arrive at the target position;

[0071] S1.1. Before target vessel 1 arrives at the target location, the vessel docking connection system must be installed on target vessel 1, including the following steps:

[0072] The two subsystems of the ship docking connection system are symmetrically arranged at a set distance along the length direction of the target ship 1. The set distance is determined according to the ship width data of the berthing ship 2.

[0073] The folding truss 12 includes three truss groups 11, which are cross-rotatably connected by connecting shafts 6 and bearings. The folding direction of the middle truss group 11 is opposite to the folding direction of the truss groups 11 on both sides thereof.

[0074] The single truss group 11 includes four layers of truss plates 8;

[0075] Each folding truss 12 is equipped with two hydraulic cylinders 3. Each hydraulic cylinder 3 is provided with five hydraulic rods. The length of each hydraulic rod is related to the length of the truss plate 8. The outermost hydraulic rod is connected to one end of the top truss plate 8 of the middle truss group 11 by bolts.

[0076] The steel wire rope 5 is connected to one end of the top truss plate 8 of the truss group 11 on both sides, and the other end of the top truss plate 8 of the truss group 11 on both sides is hinged to the top of the target ship 1;

[0077] The target ship 1 is provided with eight air bags 9 and twenty-four positioning bolts 7 on its side;

[0078] The positioning bolts 7 are arranged in groups of twelve, with each group corresponding to one folding truss 12 , and the eight airbags 9 are located between two groups of positioning bolts 7 .

[0079] S1.2. When the target ship 1 is in a sailing condition, the folding truss 12 is in a folded state. At this time, the hydraulic cylinder 3 is fully retracted and forms a certain angle with the top surface of the target ship 1.

[0080] S2. The hydraulic cylinders 3 in both subsystems extend simultaneously, lifting the corresponding folded truss 12 from the inclined surface of the cable car 4. Simultaneously, the cable car 4 releases the steel wire rope 5 in response to the movement of the corresponding folding truss 12. When the hydraulic cylinders 3 raise the folding truss 12 to a position perpendicular to the top surface of the target vessel 1, the steel wire rope 5 is tightened and provides a corresponding pre-tension, ensuring that the folding truss 12 remains folded. Thereafter, the hydraulic cylinders 3 continue to extend, cooperating with the steel wire rope 5 to lower the folding truss 12.

[0081] S3. After the hydraulic cylinder 3 is fully extended, the folding truss 12 in the folded state is arranged parallel to the top surface of the target ship 1 and is located outside the target ship 1, while the hydraulic cylinder 3 is parallel to the top surface of the target ship 1;

[0082] S4. Then the hydraulic cylinder 3 is fully retracted, driving the folding truss 12 in the folded state to fully unfold. During the unfolding process of the folding truss 12, the cable car 4 follows the movement of the folding truss 12 at a uniform speed to release the wire rope 5;

[0083] S4.1. The fully retracted stroke of the hydraulic cylinder 3 is shorter than the fully extended stroke of the hydraulic cylinder 3;

[0084] S5. The truss group 11 is then fixed to the side of the target ship 1 by positioning bolts 7;

[0085] S6. The berthing vessel 2 enters between the two folding trusses 12 from the target position. When the bow of the berthing vessel 2 enters between the two folding trusses 12, the airbags 9 on the opposite side of the target vessel 1 and the two folding trusses 12 are opened. The airbags 9 fill the interval between the berthing vessel 2 and the folding trusses 12;

[0086] S6.1. When the moored ship 2 is close to the airbag 9 on the side of the target ship 1, the step 10 is lowered from the target ship 1 to the moored ship 2.

[0087] S7. After the berthing ship 2 completes its mission, the airbag 9 is recovered and the berthing ship 2 begins to leave the target ship 1;

[0088] S7.1. After the berthing ship 2 completes the task, if the pedal 10 is lowered onto the berthing ship 2, the pedal 10 needs to be recovered back onto the target ship 1;

[0089] S8. After the berthing vessel 2 exits between the two folding trusses 12, the target vessel 1 begins to recover the folding truss 12;

[0090] S9. Remove the positioning bolts 7 between the target ship 1 and the truss group 11, and then extend the hydraulic cylinder 3 again until it is fully extended, driving the folding truss 12 in the unfolded state back to the folded state. At this time, the folding truss 12 in the folded state is parallel to the top surface of the target ship 1;

[0091] S10. Cable car 4 retracts wire rope 5 to lift folding truss 12, driving hydraulic cylinder 3 to slowly retract. At this time, hydraulic cylinder 3 provides corresponding supporting force to ensure that folding truss 12 is in the folded state. When cable car 4 hoists folding truss 12 to be perpendicular to the top surface of target ship 1 via wire rope 5, wire rope 5 begins to unload. Thereafter, hydraulic cylinder 3 continues to retract, driving folding truss 12 to continue to rotate toward cable car 4.

[0092] S11. The hydraulic cylinder 3 is fully retracted, and the folding truss 12 in the folded state is placed on the inclined surface of the cable car housing 4;

[0093] This embodiment provides a docking method based on a foldable ship docking connection system. It comprehensively considers various influencing factors such as external sea conditions, ship movement, ship type and material transfer during the ship docking process, and designs a foldable ship docking connection system suitable for high sea conditions and multiple types of ships to ensure working stability and safety during the ship docking process.

[0094] Example 2:

[0095] This embodiment uses a docking method based on a foldable ship docking connection system provided in the first embodiment, and takes the example of a berthing ship 2 delivering supplies to a target ship 1 at sea, specifically including the following steps:

[0096] S1. Both target ship 1 and berthed ship 2 arrive at the target position;

[0097] S1.1. The arrangement and installation of the ship docking connection system on the target ship 1 are completed when the target ship 1 is built;

[0098] The ship docking connection system is arranged on one side of the deck of the target ship 1. There are two subsystems in total. The subsystems are symmetrically arranged at intervals of 12m along the length of the target ship 1.

[0099] The folding truss 12 includes three truss groups 11, which are cross-rotatably connected by connecting shafts 6 and bearings. The folding direction of the middle truss group 11 is opposite to the folding direction of the truss groups 11 on both sides thereof.

[0100] The single truss group 11 includes four layers of truss plates 8, each truss plate 8 is 4m long and 1.5m wide, and two adjacent truss plates 8 are hinged;

[0101] An airbag 9 is provided on each of the two folding trusses 12 on opposite sides, and the airbag 9 is installed on the side of the corresponding truss group 11;

[0102] Each folding truss 12 is equipped with two hydraulic cylinders 3. Each hydraulic cylinder 3 is provided with five hydraulic rods. Each hydraulic rod is 1.5 meters long. The outermost hydraulic rod is connected to one end of the top truss plate 8 of the middle truss group 11 by bolts.

[0103] The steel wire rope 5 is connected to one end of the top truss plate 8 of the truss group 11 on both sides, and the other end of the top truss plate 8 of the truss group 11 on both sides is hinged to the top of the target ship 1;

[0104] The side of the target ship 1 is also provided with eight airbags 9 of the same specifications as those on the folding truss 12, and twenty-four positioning bolts 7;

[0105] The positioning bolts 7 are arranged in groups of twelve, each group corresponding to one folding truss 12, and the eight airbags 9 are located between two groups of positioning bolts 7;

[0106] The target ship 1 is also equipped with a pedal 10;

[0107] S1.2. Figure 1-Figure 3 As shown, when the target ship 1 is in the sailing condition, the folding truss 12 is in the folded state, at which time the hydraulic cylinder 3 is fully retracted and forms a certain angle with the top surface of the target ship 1;

[0108] S2. The hydraulic cylinders 3 in both subsystems extend simultaneously, lifting the corresponding folded truss 12 from the inclined surface of the cable car 4. Simultaneously, the cable car 4 releases the steel wire rope 5 in response to the movement of the corresponding folding truss 12. When the hydraulic cylinders 3 raise the folding truss 12 to a position perpendicular to the top surface of the target vessel 1, the steel wire rope 5 is tightened and provides a corresponding pre-tension, ensuring that the folding truss 12 remains folded. Thereafter, the hydraulic cylinders 3 continue to extend, cooperating with the steel wire rope 5 to lower the folding truss 12.

[0109] S3. Figure 4-Figure 6 As shown, after the hydraulic cylinder 3 is fully extended, the folding truss 12 in the folded state is arranged parallel to the top surface of the target ship 1 and is located outside the target ship 1, and the hydraulic cylinder 3 is parallel to the top surface of the target ship 1;

[0110] S3.1. Because both the hydraulic cylinder 3 and the steel wire rope 5 exert a restraining force on the folding truss 12, the hydraulic cylinder 3 restricts the relative position between the top truss plate 8 of the middle truss group 11 and the target vessel 1, while the steel wire rope 5 restricts the relative position between the top truss plates 8 of the side truss groups 11 and the target vessel 1. Furthermore, because the folding directions of the two adjacent truss groups 11 are opposite, the folding truss 12 remains folded in the absence of additional driving force.

[0111] S4. Figure 7-Figure 9 As shown, the hydraulic cylinder 3 is then fully retracted, driving the folding truss 12 in the folded state to fully unfold. During the unfolding process of the folding truss 12, the cable car 4 follows the movement of the folding truss 12 and releases the wire rope 5 at a uniform speed;

[0112] S4.1. The hydraulic cylinder 3 retracts to provide driving force for the folding truss 12 to unfold;

[0113] S4.2. As hydraulic cylinder 3 retracts, it moves the top truss plate 8 of the middle truss group 11, whose end is connected to its output end, closer to the target vessel 1, causing truss plate 8 to no longer be parallel to the top surface of the target vessel 1. Simultaneously, the truss groups 11 on either side move with the middle truss group 11 in the opposite direction of its movement, thereby gradually unfolding the folding truss 12.

[0114] S4.3. The fully retracted stroke of the hydraulic cylinder 3 is shorter than the fully extended stroke of the hydraulic cylinder 3;

[0115] S5. The truss group 11 is then fixed to the side of the target ship 1 by positioning bolts 7;

[0116] S5.1. Each of the three truss groups 11 has two contact points with the target vessel 1, secured by positioning bolts 7. These bolts enhance the stability of the folding trusses 12 in their unfolded state. Each truss plate 8 requires two positioning bolts 7 for fixation. The positioning bolts 7 for the middle truss group 11 are not aligned with the positioning bolts 7 for the two side truss groups 11.

[0117] S5.2. After installation with the positioning bolts 7 is completed, the truss plate 8 of the middle truss group 11 and the truss plates 8 of the two truss groups 11 on the side are in a cross state;

[0118] S6. Figure 10-12 As shown, the moored ship 2 sails from the target position into between the two folding trusses 12. When the bow of the moored ship 2 enters between the two folding trusses 12, the airbags 9 on the side of the target ship 1 and the opposite sides of the two folding trusses 12 are opened, and the airbags 9 fill the gap between the moored ship 2 and the folding trusses 12.

[0119] S6.1. When the moored ship 2 is close to the airbag 9 on the side of the target ship 1, the step 10 is lowered from the target ship 1 to the moored ship 2.

[0120] S7. After the berthing ship 2 completes its mission, the airbag 9 is recovered and the berthing ship 2 begins to leave the target ship 1;

[0121] S7.1. Recover the pedal 10 to the target ship 1;

[0122] S8. After the berthing vessel 2 exits between the two folding trusses 12, the target vessel 1 begins to recover the folding truss 12;

[0123] S9. Remove the positioning bolts 7 between the target ship 1 and the truss group 11, and then extend the hydraulic cylinder 3 again until it is fully extended, driving the folding truss 12 in the unfolded state back to the folded state. At this time, the folding truss 12 in the folded state is parallel to the top surface of the target ship 1;

[0124] S9.1. Hydraulic cylinder 3 moves the top truss plate 8 of the middle truss group 11, connected to its output end, away from the target vessel 1, thereby aligning the truss plate 8 with the top surface of the target vessel 1. Simultaneously, the truss groups 11 on either side follow the movement of the middle truss group 11, and together with the truss plates 8 in the middle truss group 11, align themselves with the top surface of the target vessel 1, thus completing the folding process of the folding truss 12.

[0125] S10. Cable car 4 retracts wire rope 5 to lift folding truss 12, driving hydraulic cylinder 3 to slowly retract. At this time, hydraulic cylinder 3 provides corresponding supporting force to ensure that folding truss 12 is in the folded state. When cable car 4 hoists folding truss 12 to be perpendicular to the top surface of target ship 1 via wire rope 5, wire rope 5 begins to unload. Thereafter, hydraulic cylinder 3 continues to retract, driving folding truss 12 to continue to rotate toward cable car 4.

[0126] S11. The hydraulic cylinder 3 is fully retracted, and the folding truss 12 in the folded state is placed on the inclined surface of the cable car housing 4;

[0127] S11.1. After the hydraulic cylinder 3 is fully retracted, its fully retracted stroke is equal to its fully extended stroke.

[0128] This embodiment provides a docking method based on a foldable ship docking connection system according to the first embodiment, and provides a specific docking scheme for the target ship 1 and the moored ship 2. By installing the foldable ship docking connection system on the target ship 1 and matching the arrangement distance between the two subsystems with the width of the moored ship 2, the target ship 1 and the moored ship 2 can be in direct contact with each other during the docking process and the moored ship 2 can be fixed between the two subsystems, thereby achieving a good docking effect. At the same time, the fixed target ship 1 and the moored ship 2 are arranged in a T-shape, which is more stable than the traditional parallel arrangement of two ships.

[0129] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A docking method based on a foldable ship docking connection system, characterized by: The invention comprises a target ship (1), wherein the target ship (1) is equipped with a ship docking connection system, the target ship (1) is fixed to a berthing ship (2) via the ship docking connection system, and the fixed target ship (1) and the berthing ship (2) are arranged in a T-shape, and the ship docking connection system comprises two subsystems arranged at intervals along the length direction of the target ship (1); The structure of a single subsystem is as follows: it includes a hydraulic cylinder (3) installed on the top surface of a target ship (1), the output end of the hydraulic cylinder (3) is connected to a folding truss (12), one end of the folding truss (12) is hinged to the target ship (1), the folding truss (12) includes a plurality of foldable truss groups (11), the truss groups (11) are mounted in conjunction with each other through a connecting shaft (6), the folding directions of two adjacent truss groups (11) are opposite, the folding truss (12) is also connected to a cable car (4) through a steel wire rope (5), the cable car (4) is symmetrically installed on the top surface of the target ship (1) on both sides of the hydraulic cylinder (3), and an inclined surface for placing the folding truss (12) is provided on the outer shell of the cable car (4); Positioning bolts (7) for fixing the folding trusses (12) are installed on the side of the target ship (1), and airbags (9) are installed on the side of the target ship (1) and on the opposite sides of the two folding trusses (12); When the target ship (1) docks with the berthing ship (2) through the ship docking connection system, the following steps are included: S1. Both the target ship (1) and the berthed ship (2) arrive at the target location; S2. The hydraulic cylinders (3) in the two subsystems extend simultaneously, lifting the corresponding folding truss (12) in a folded state from the inclined surface of the cable car (4), and at the same time, the cable car (4) releases the steel wire rope (5) following the movement of the corresponding folding truss (12); when the hydraulic cylinder (3) pushes the folding truss (12) to be perpendicular to the top surface of the target ship (1), the steel wire rope (5) is tightened and provides corresponding pre-tension to ensure that the folding truss (12) is in a folded state, and then the hydraulic cylinder (3) continues to extend and cooperates with the steel wire rope (5) to continue to lower the folding truss (12); S3. After the hydraulic cylinder (3) is fully extended, the folding truss (12) in the folded state is arranged parallel to the top surface of the target ship (1) and is located outside the target ship (1), and the hydraulic cylinder (3) is parallel to the top surface of the target ship (1); S4. The hydraulic cylinder (3) is then fully retracted, driving the folding truss (12) in the folded state to fully unfold. During the unfolding process of the folding truss (12), the cable car (4) follows the movement of the folding truss (12) to release the wire rope (5) at a uniform speed; S5. The truss group (11) is then fixed to the side of the target ship (1) by positioning bolts (7); S6. The berthing vessel (2) moves from the target position into the space between the two folding trusses (12). When the bow of the berthing vessel (2) enters the space between the two folding trusses (12), the airbags (9) on the side of the target vessel (1) and on the opposite sides of the two folding trusses (12) are opened, and the airbags (9) fill the space between the berthing vessel (2) and the folding trusses (12); S7. After the berthing ship (2) completes its mission, it recycles the airbag (9) and the berthing ship (2) begins to move away from the target ship (1); S8. After the berthing vessel (2) exits between the two folding trusses (12), the target vessel (1) begins to recycle the folding trusses (12); S9. Remove the positioning bolts (7) between the target ship (1) and the truss assembly (11), and then extend the hydraulic cylinder (3) again until it is in a fully extended state, driving the folding truss (12) in the unfolded state back to the folded state. At this time, the folding truss (12) in the folded state is parallel to the top surface of the target ship (1); S10. The cable car (4) retracts the steel wire rope (5) to lift the folding truss (12), driving the hydraulic cylinder (3) to slowly retract. At this time, the hydraulic cylinder (3) provides the corresponding supporting force to ensure that the folding truss (12) is in the folded state; when the cable car (4) lifts the folding truss (12) to a position perpendicular to the top surface of the target ship (1) through the steel wire rope (5), the steel wire rope (5) begins to unload, and thereafter the hydraulic cylinder (3) continues to retract, driving the folding truss (12) to continue to rotate toward the cable car (4); S11. The hydraulic cylinder (3) is fully retracted, and the folding truss (12) in the folded state is placed on the inclined surface of the cable car (4) shell.

2. The docking method based on the foldable ship docking connection system according to claim 1, characterized in that: Each folding truss (12) includes a single array of truss groups (11), and the structure of each truss group (11) is: including a plurality of truss plates (8), and two adjacent truss plates (8) are hinged.

3. The docking method based on the foldable ship docking connection system according to claim 2, characterized in that: In S1., before the target ship (1) arrives at the target location, it is necessary to complete the arrangement and installation of the ship docking connection system on the target ship (1), including the following steps: The two subsystems of the ship docking connection system are symmetrically arranged at a set distance along the length direction of the target ship (1), and the set distance is determined according to the width data of the berthing ship (2); The folding truss (12) includes three truss groups (11), which are cross-rotatably connected through connecting shafts (6) and bearings, and the folding direction of the middle truss group (11) is opposite to the folding direction of the truss groups (11) on both sides thereof; The single truss group (11) includes four layers of truss plates (8); Each folding truss (12) is equipped with two hydraulic cylinders (3), and each hydraulic cylinder (3) is provided with five hydraulic rods, the length of each hydraulic rod being related to the length of the truss plate (8), and the outermost hydraulic rod is connected to one end of the top truss plate (8) of the middle truss group (11) by bolts; The steel wire rope (5) is respectively connected to one end of the top truss plate (8) of the truss group (11) on both sides, and the other end of the top truss plate (8) of the truss group (11) on both sides is hinged to the top of the target ship (1); The target ship (1) is provided with eight air bags (9) and twenty-four positioning bolts (7) on its side; The positioning bolts (7) are arranged in groups of twelve, each group corresponding to a folding truss (12), and the eight airbags (9) are located between two groups of positioning bolts (7).

4. The docking method based on the foldable ship docking connection system according to claim 1, characterized in that: In S1., when the target ship (1) is in a sailing condition, the folding truss (12) is in a folded state, and the hydraulic cylinder (3) is fully retracted and forms a certain angle with the top surface of the target ship (1).

5. The docking method based on the foldable ship docking connection system according to claim 1, characterized in that: In S4., the fully retracted stroke of the hydraulic cylinder (3) is shorter than the fully extended stroke of the hydraulic cylinder (3).

6. The docking method based on the foldable ship docking connection system according to claim 1, characterized in that: The target ship (1) is also equipped with a pedal (10).

7. The docking method based on the foldable ship docking connection system according to claim 6, characterized in that: In S6., when the moored ship (2) is close to the airbag (9) on the side of the target ship (1), the pedal (10) is lowered from the target ship (1) to the moored ship (2).

8. The docking method based on the foldable ship docking connection system according to claim 6, characterized in that: In S7., after the berthing ship (2) completes the task, if the pedal (10) is lowered onto the berthing ship (2), the pedal (10) needs to be recovered onto the target ship (1).

Images