Gantry crane for wharf operation and using method thereof

Abstract

The invention belongs to the technical field of cranes, and particularly relates to a gantry crane for wharf operation and a using method of the gantry crane, the gantry crane comprises a hoisting mechanism, and the hoisting mechanism is used for wharf hoisting operation; the floating body is used for installing and supporting the hoisting mechanism to work on water, the middle area of the floating body is hollow, and a water working area is provided for the hoisting mechanism; the floating body is provided with a water storage cabin, and the gravity center of the floating body is changed by controlling the water storage amount in the water storage cabin; the gravity center of the floating body is adjusted through the water storage tank, and changes of the offshore operation environment can be effectively coped with. In the working state, the gravity center of the floating body is lowered by increasing the water amount in the water storage cabin, and the stability is enhanced; in the moving state, the water amount is reduced, the gravity center of the floating body rises, and rapid moving is facilitated. The dynamic adjusting mechanism obviously improves the safety and the operation efficiency of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes, and in particular relates to a gantry crane for dock operations and a use method thereof. Background Art

[0002] The wharf is a key facility in the port, mainly used for the docking of ships. It is usually built on the shore or in the water to facilitate a series of operations such as cargo loading and unloading, passengers embarking and disembarking, and ship repair. In port logistics, cranes play an indispensable role. They are important tools for efficient cargo loading and unloading and handling between ships and land. The effective operation of these facilities ensures the smoothness and efficiency of port logistics. However, the existing wharf operation cranes have the following problems in the actual port logistics process:

[0003] First of all, in dock operations, quay cranes (also known as shore container cranes) are one of the most common types of cranes. This type of crane is usually fixed on the edge of the dock. Although its range of movement is limited, it is sufficient to meet the needs of efficient operations in a specific area. In order to achieve precise loading and unloading operations, the ship must first complete the side docking and ensure that it is accurately docked with the position of the quay crane. However, side docking is a highly technical operation, especially in busy ports, where berth resources are tight, which puts higher requirements on ship docking. In this process, it is crucial to accurately calculate the position of the ship to avoid collisions with other ships or port facilities. For narrow channels or berths, the limitation of operating space further increases the difficulty of docking. In order to allow the ship to dock smoothly sideways, it is sometimes necessary to use tugboats to assist the ship in completing side docking. Tugboats can provide the necessary thrust or pull to help large ships control their position and direction more accurately.

[0004] Secondly, most of the existing cranes are fixedly installed on the shore. The use of such cranes requires the laying of dedicated tracks, the construction of power supply systems and other infrastructure, resulting in relatively high construction and maintenance costs. In addition, fixed cranes on the seashore are usually designed to perform specific types of operations, such as container loading and unloading or bulk handling, and therefore have certain functional limitations. Because these cranes are fixed in specific locations, they are difficult to adapt to the ever-changing multi-purpose needs within the port, especially when facing different types and sizes of ships, and lack of flexibility becomes a major limitation.

[0005] Finally, the seaside is greatly affected by wind, waves and typhoons, which brings additional challenges to cranes fixed on the shore. Wind and waves may cause the crane to shake, affecting the accuracy and safety of operations, and even causing damage to the structure and components of the crane. During typhoons, equipment safety and personnel safety face greater risks.

[0006] In summary, it is found that the existing technology has at least the following technical problems: the cranes fixed on the shore have obvious deficiencies in side docking, construction and maintenance costs, functional flexibility and the ability to cope with severe weather conditions. Summary of the invention

[0007] In view of this, an object of the present invention is to provide a gantry crane for dock operations and a method of using the same, so as to solve the problems existing in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the first technical solution of the present invention is a gantry crane for dock operations, characterized in that the crane includes a lifting mechanism, which is used for lifting operations at the dock; a floating body, which is used to install and support the lifting mechanism for operations on water, and the middle area of ​​the floating body is hollow to provide an operating area on water for the lifting mechanism; the floating body is provided with a water storage tank, and the center of gravity of the floating body is changed by controlling the water storage amount in the water storage tank; when the water storage amount in the water storage tank increases, the center of gravity of the floating body is lowered to ensure the stability of the crane during water operations; when the water storage amount in the water storage tank decreases, the center of gravity of the floating body is shifted to facilitate the movement and transfer of the crane.

[0009] Preferably, in order to ensure the stability and balance of the floating body, the water storage tank is divided into a plurality of water storage chambers: a partition is arranged in the water storage tank, and the partition divides the water storage tank into a plurality of water storage chambers, thereby reducing the change of the center of gravity of the floating body caused by the fluctuation of the liquid level in the water storage tank, thereby ensuring the stability and balance of the floating body; a through hole running through both sides is opened on the partition, and the through hole connects the plurality of water storage chambers to each other, thereby avoiding the shift of the center of gravity of the floating body and causing the crane to tip over.

[0010] Preferably, to avoid excessive impact of seawater: the floating body is provided with a guide plate and a buffer plate at both ends in the length direction, and the two ends of the floating body in the length direction are the near end and the far end according to the distance from the shore; the guide plate is arranged on the far end of the floating body to alleviate the impact of water flow on the floating body; the buffer plate is arranged on the near end of the floating body to alleviate the collision between the crane and the shore.

[0011] Furthermore, the working principle of the guide plate and the buffer plate is as follows: the guide plate is fixedly mounted on the distal end of the float; a telescopic cavity is provided on the proximal end of the float, and the buffer plate is slidably mounted on the port of the telescopic cavity, and a reset spring is also provided between the buffer plate and the telescopic cavity; a buffer cavity is above the telescopic cavity, the buffer cavity is connected to the telescopic cavity, and the telescopic cavity is filled with liquid.

[0012] Furthermore, water supply, drainage and cleaning of the water storage tank: the water storage tank is equipped with a water inlet module and a water outlet module, and the water storage capacity in the water storage tank is increased by the water inlet module and the water outlet module; during operation, the water inlet module increases the water storage capacity in the water storage tank by extracting water from the natural environment during water operation; the water outlet module reduces the water storage capacity in the water storage tank by discharging water in the water storage tank; the water storage tank is also equipped with a cleaning module, and the cleaning module includes a spray head, and the spray head is used to clean the water storage tank and the partition; during cleaning, the water inlet module is connected to the city water system to provide a water source for the cleaning module; a reversing valve is arranged between the water inlet module, the cleaning module and the water storage tank; when operating, the reversing valve connects the water inlet module and the inside of the water storage tank to increase the water storage capacity in the water storage tank; when cleaning, the reversing valve connects the water inlet module and the cleaning module to provide a water source for the cleaning module.

[0013] Furthermore, the internal conditions of the water storage tank during operation and cleaning: the partition is rotatably installed in the water storage tank, and the partition can be switched between an operating state and a cleaning state; the partitions in the water storage tank are arranged at intervals along the length direction of the water storage tank; when the partition is in the operating state, the plane where the partition is located is parallel to the width direction of the water storage tank; when the partition is in the cleaning state, the plane where the partition is located is parallel to the length direction of the water storage tank, and all the partitions are on the same plane.

[0014] Furthermore, the structure of the partition in the water storage tank is arranged as follows: the partition includes a plate body and a rotating rod that drives the plate body to rotate, one end of the rotating rod is fixedly connected to a connecting rod, the connecting rods are arranged in parallel and are both rotatably connected to a control rod; the movement of the control rod causes the connecting rod to swing, thereby driving the partition to rotate.

[0015] Preferably, the lifting mechanism is optimized so that it cooperates with the floating body to be more suitable for water operations: the lifting mechanism includes columns, connecting beams and hanging beams, and the hanging beams are provided with lifting components; the columns are arranged at both ends of the floating body in the length and width directions, and the connecting beams are arranged at the top ends of the columns, and the connecting beams are used to connect the columns in pairs along the length and width directions of the floating body; the connecting beams are respectively a longitudinal beam parallel to the length direction of the floating body and a transverse beam parallel to the width direction of the floating body, the hanging beams are parallel to the transverse beams, a linear transmission component is provided on the longitudinal beam, and the hanging beam is arranged on the moving end of the linear transmission component.

[0016] In order to solve the above technical problems, the second technical solution of the present invention is a method for using a gantry crane for dock operations, which uses the crane described in the first technical solution, and the method for using includes an operation method and a cleaning method; the operation method is as follows:

[0017] S1. Adjust the crane status, adjust the baffle in the water storage tank to the operating status and connect the reversing valve to the water inlet module and the inside of the water storage tank;

[0018] S2. During movement, the water in the water storage tank is discharged through the water outlet module to improve the center of gravity transfer of the floating body, so as to facilitate the movement and transfer of the crane;

[0019] S3. Place the length direction of the floating body perpendicular to the shore, and let the close end of the floating body face the shore to form a double-sided dock;

[0020] S4. During operation, water is pumped from the natural environment through the water intake module to lower the center of gravity of the floating body, so as to ensure the stability of the crane during water operation.

[0021] Preferably, the cleaning method is as follows:

[0022] S1. Drain the water in the water storage tank through the water outlet module;

[0023] S2, crane state adjustment, adjust the baffle in the water storage tank to the cleaning state and connect the reversing valve to the water inlet module and the cleaning module;

[0024] S3. During cleaning, the water inlet module is connected to the city water system to provide water for the cleaning module, so that the sprinkler head sprays and cleans the water storage tank and the partition. At the same time, the water outlet module will continue to drain the water in the water storage tank.

[0025] The technical effects of the present invention are mainly reflected in the following aspects:

[0026] Traditional dock cranes are mostly fixed and installed at the edge of the dock. They have a limited range of movement and cannot quickly respond to the needs of different berths. They also have high construction and maintenance costs. The gantry crane of the present invention adopts a floating body design and can be freely moved to different locations in the port, which not only reduces dependence on specific berths but also improves operating efficiency. At the same time, the floating body design also allows the crane to operate in a wider range of water environments, enhancing the adaptability and flexibility of the equipment.

[0027] By adjusting the center of gravity of the floating body through the water storage tank, the present invention can effectively cope with changes in the offshore operating environment. In the operating state, the center of gravity of the floating body is lowered by increasing the amount of water in the water storage tank to enhance stability; in the moving state, the center of gravity of the floating body is raised by reducing the amount of water, which facilitates rapid movement. This dynamic adjustment mechanism significantly improves the safety and operating efficiency of the equipment.

[0028] The water storage tank is equipped with a cleaning module, which can conveniently clean the water storage tank and internal partitions, ensuring the long-term stable operation of the equipment; by switching the function of the water inlet module through the reversing valve, the water in the water storage tank can be replenished during operation, and it can also be connected to the city water system during cleaning, realizing the effective use of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the present invention;

[0030] Figure 2 for Figure 1 Structural diagram of the lifting mechanism;

[0031] Figure 3 for Figure 1 Structural diagram of the middle buoy;

[0032] Figure 4 for Figure 2 A partial cross-sectional view of the middle buoy;

[0033] Figure 5 for Figure 2 A side sectional view of the mid-floating body;

[0034] Figure 6 for Figure 5 Schematic diagram of the bulkhead in the middle water storage tank in operation;

[0035] Figure 7 for Figure 5 Schematic diagram of the partition in the middle water storage tank in the cleaning state;

[0036] In the figure: 1. lifting mechanism, 11. column, 12. connecting beam, 13. lifting beam, 14. longitudinal beam, 15. cross beam; 2. floating body, 21. working area, 22. guide plate, 23. buffer plate, 24. telescopic chamber, 25. reset spring, 26. buffer chamber; 3. water storage tank, 31. partition, 32. through hole, 33. plate body, 34. rotating rod, 35. connecting rod, 36. control rod. DETAILED DESCRIPTION

[0037] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0038] In this embodiment, it should be understood that the orientations or positional relationships indicated by terms such as "middle", "upper", "lower", "top", "right", "left end", "above", "back", and "middle" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection and the like commonly used in the prior art, and therefore, it will not be described in detail in this embodiment.

[0040] Embodiment 1

[0041] See also Figure 1 The gantry crane for dock operation includes a lifting mechanism 1, which is used for lifting operations at the dock, including loading, unloading and handling of goods. The floating body 2 is used to install and support the lifting mechanism 1 for water operations. The middle area of ​​the floating body 2 is hollow, providing a water operation area 21 for the lifting mechanism 1. The floating body 2 is provided with a water storage tank 3, and the center of gravity of the floating body 2 is changed by controlling the water storage amount in the water storage tank 3, thereby ensuring stability during operation and flexibility during movement.

[0042] Specifically, when the amount of water stored in the water tank 3 increases, the center of gravity of the floating body 2 is lowered to ensure the stability of the crane during water operations, especially in the case of strong winds and waves. When the amount of water stored in the water tank 3 decreases, the center of gravity of the floating body 2 is transferred to facilitate the movement and transfer of the crane, reducing the resistance and energy consumption during the movement. Traditional dock cranes are mostly fixed and installed at the edge of the dock. They have a limited range of movement and cannot quickly respond to the needs of different berths. They also have high construction and maintenance costs. The crane in this embodiment adopts the design of the floating body 2 and can move freely to different locations in the port, which not only reduces the dependence on specific berths, but also improves the operating efficiency. The design of the floating body 2 also allows the crane to work in a wider range of water environments, enhancing the adaptability and flexibility of the equipment. At the same time, fixed cranes lack an effective center of gravity adjustment mechanism. Once encountering bad weather, such as strong winds or waves, there may be safety hazards. Second, this embodiment adjusts the center of gravity of the floating body 2 through the water tank 3, which can effectively respond to changes in the offshore operating environment. In the operating state, the center of gravity of the floating body 2 is lowered by increasing the amount of water in the water storage tank 3 to enhance stability; in the moving state, the center of gravity of the floating body 2 is raised by reducing the amount of water to facilitate rapid movement. This dynamic adjustment mechanism significantly improves the safety and operating efficiency of the equipment.

[0043] See also Figure 5, a partition 31 is provided in the water tank 3, and the partition 31 divides the water tank 3 into several water storage chambers, thereby reducing the change of the center of gravity of the floating body 2 caused by the fluctuation of the liquid level in the water tank 3, and ensuring the stability and balance of the floating body 2; a through hole 32 is opened on the partition 31 that runs through both sides, and the through hole 32 connects several water storage chambers to each other, ensuring that the water in the water tank 3 can flow between different chambers, avoiding the center of gravity of the floating body 2 from shifting and causing the crane to roll over. Specifically, the design of the partition 31 and the through hole 32 effectively reduces the fluctuation of the liquid level in the water tank 3, ensuring the stability and balance of the floating body 2 in various working environments; the through hole 32 realizes the water flow connection between the water storage chambers, preventing the center of gravity of the floating body 2 from shifting, and avoiding the crane from rolling over.

[0044] See also Figure 3 , Figure 4 The two ends of the floating body 2 in the length direction are respectively provided with a guide plate 22 and a buffer plate 23. The two ends of the floating body 2 in the length direction are respectively the near end and the far end according to the distance from the shore; the guide plate 22 is arranged on the far end of the floating body 2, and the guide plate 22 is usually streamlined or wedge-shaped to alleviate the impact of the water flow on the floating body 2, reduce the direct force of the water flow on the floating body 2, and protect the structure of the floating body 2 and the crane. The buffer plate 23 is arranged on the near end of the floating body 2 to alleviate the collision between the crane and the shore, which not only protects the crane itself, but also provides additional safety for the surrounding facilities.

[0045] The guide plate 22 is fixedly installed on the distal end of the float 2; a telescopic cavity 24 is opened on the proximal end of the float 2, and the buffer plate 23 is slidably installed on the port of the telescopic cavity 24, and a reset spring 25 is also arranged between the buffer plate 23 and the telescopic cavity 24; a buffer cavity 26 is above the telescopic cavity 24, and the buffer cavity 26 is connected to the telescopic cavity 24, and the telescopic cavity 24 is filled with liquid; the dual buffering mechanism of the reset spring 25 and the buffer liquid ensures the reliability and recovery ability of the buffer plate 23 after multiple impacts.

[0046] The water storage tank 3 is equipped with a water inlet module and a water outlet module, which are used to increase the water storage volume in the water storage tank 3; the water inlet module includes a water pump, a pipeline and a control valve, and the water pump can extract water (such as seawater) from the natural environment and transport it to the water storage tank 3 through a pipeline; the water outlet module includes a drainage pump, a pipeline and a control valve. The drainage pump can discharge the water in the water storage tank 3 to the outside through a pipeline. During operation, the water inlet module increases the water storage volume in the water storage tank 3 by extracting water from the natural environment during water operations; the water outlet module reduces the water storage volume in the water storage tank 3 by discharging the water in the water storage tank 3; the water storage tank 3 is also equipped with a cleaning module, which includes a spray head that can cover the surface of the water storage tank 3 and the partition 31 in all directions. The spray head is used to clean the water storage tank 3 and the partition 31; when cleaning, the water inlet module is connected to the city water system to provide water for the cleaning module; a reversing valve is arranged between the water inlet module, the cleaning module and the water storage tank 3; when operating, the reversing valve connects the water inlet module and the inside of the water storage tank 3 to increase the water storage capacity in the water storage tank 3; when cleaning, the reversing valve connects the water inlet module and the cleaning module to provide water for the cleaning module. The cleaning module can conveniently clean the water storage tank 3 and the internal partition 31, ensuring the long-term stable operation of the equipment. By switching the function of the water inlet module through the reversing valve, the water in the water storage tank 3 can be replenished during operation, and the city water system can be connected during cleaning, realizing the effective use of water resources. A liquid level sensor can also be arranged in the water storage tank 3, and the liquid level sensor is used to monitor the water level in the water storage tank 3 in real time to ensure that the water storage capacity in the water storage tank 3 is within a safe range.

[0047] Specifically, the water storage volume in the water storage tank 3 is adjusted through the water inlet module and the water outlet module to ensure stability and safety during operation; the cleaning module can conveniently clean the water storage tank 3 and the internal partition 31 to prevent seawater from corroding the equipment and ensure the long-term stable operation of the equipment; the function of the water inlet module is switched by the reversing valve, so that the water volume in the water storage tank 3 can be replenished during operation, and the city water system can be connected during cleaning, thereby realizing the effective use of water resources.

[0048] See also Figure 6 , Figure 7 , the partition 31 is rotatably installed in the water storage tank 3, and the partition 31 can be switched between the working state and the cleaning state; the partition 31 in the water storage tank 3 is arranged at intervals along the length direction of the water storage tank 3; when the partition 31 is in the working state, the plane where the partition 31 is located is parallel to the width direction of the water storage tank 3, and the water storage tank 3 is divided into multiple water storage chambers, which reduces the fluctuation of the liquid level and ensures the stability and balance of the floating body 2. When the partition 31 is in the cleaning state, the plane where the partition 31 is located is parallel to the length direction of the water storage tank 3, and all the partitions 31 are on the same plane, which is convenient for the cleaning module to thoroughly clean the water storage tank 3 and the partition 31. An inlet and outlet can also be set on the top of the water storage tank 3 to simplify the cleaning and maintenance of the water storage tank 3.

[0049] The partition 31 includes a plate body 33 and a rotating rod 34 that drives the plate body 33 to rotate. One end of the rotating rod 34 is fixedly connected to a connecting rod 35. The connecting rods 35 are arranged in parallel and are both rotatably connected to a control rod 36. The movement of the control rod 36 causes the connecting rod 35 to swing, thereby driving the partition 31 to rotate.

[0050] See also Figure 2 The lifting mechanism 1 includes a column 11, a connecting beam 12 and a hanging beam 13. A lifting assembly is arranged on the hanging beam 13, and the lifting assembly can be a chain hoist; the column 11 is arranged at both ends of the length direction and the width direction of the floating body 2, and the connecting beam 12 is arranged at the top of the column 11. The connecting beam 12 is used to connect the columns 11 in pairs along the length direction and the width direction of the floating body 2; the connecting beams 12 are respectively a longitudinal beam 14 parallel to the length direction of the floating body 2 and a transverse beam 15 parallel to the width direction of the floating body 2. The hanging beam 13 is parallel to the transverse beam 15. A linear transmission assembly is arranged on the longitudinal beam 14, and the hanging beam 13 is arranged on the moving end of the linear transmission assembly. Secondly, the column 11 can be a lifting column 11. The lifting column 11 can adjust the height according to the operation requirements, adapt to different types of ships and operating environments, and improve the flexibility and adaptability of the operation; at the same time, the lifting design can also effectively cope with changes in the offshore operating environment.

[0051] Specifically, during operation, only the lifting beam 13 and the lifting assembly of the lifting mechanism 1 of this embodiment move, avoiding the problems caused by the movement of the entire column 11 and the lifting beam 13 on the slide rail in the traditional design; reducing the moving weight, improving the moving efficiency and safety, and reducing energy consumption and maintenance costs.

[0052] Embodiment 2

[0053] A method for using a gantry crane for dock operations, using the crane of the first embodiment, the method for using includes an operation method and a cleaning method;

[0054] The usage of the job is as follows:

[0055] S1. See Figure 6 , adjust the crane status, adjust the partition 31 in the water storage tank 3 to the operating state, ensure that the plane of the partition 31 is parallel to the width direction of the water storage tank 3, and divide the water storage tank 3 into multiple water storage chambers; at the same time, let the reversing valve connect the water inlet module and the inside of the water storage tank 3 to prepare for water filling.

[0056] S2. During movement, the water in the water storage tank 3 is discharged through the water outlet module to reduce the water storage capacity in the water storage tank 3 and improve the center of gravity transfer of the floating body 2, so as to facilitate the movement and transfer of the crane and reduce the resistance and energy consumption during the movement.

[0057] S3. The length direction of the floating body 2 is placed perpendicular to the shore, and the close end of the floating body 2 faces the shore to form a double-sided dock. The layout can facilitate the docking of ships and the loading and unloading of cargoes.

[0058] S4. During operation, water is pumped from the natural environment through the water inlet module to lower the center of gravity of the floating body 2 to ensure the stability of the crane during water operations; especially in the case of strong winds and waves, the low center of gravity can improve the safety of the operation.

[0059] The cleaning method is as follows:

[0060] S1. Drain the water in the water storage tank 3 through the water outlet module to facilitate subsequent cleaning work.

[0061] S2, see Figure 7 , adjust the crane status, adjust the partition 31 in the water storage tank 3 to the cleaning state, ensure that the plane of the partition 31 is parallel to the length direction of the water storage tank 3, and all the partitions 31 are on the same plane, so that the cleaning module can comprehensively clean the water storage tank 3 and the partition 31; at the same time, let the reversing valve connect the water inlet module and the cleaning module to prepare for cleaning.

[0062] S3. During cleaning, the water inlet module is connected to the city water system to provide water for the cleaning module, and the cleaning module is started to allow the spray head to spray and clean the water storage tank 3 and the partition 31. At the same time, the water outlet module will continue to empty the water in the water storage tank 3 to ensure that the cleaning water is discharged in time and keep the inside of the water storage tank 3 clean.

[0063] In addition, as common knowledge in the industry, the urban water system, liquid level sensor and sprinkler mentioned above are common knowledge, so their principles and structures will not be described in detail.

[0064] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. Gantry crane for dock operation, characterized in that: The crane comprises: A lifting mechanism, wherein the lifting mechanism is used for lifting operations at the dock; A floating body, the floating body is used to install and support the lifting mechanism for operation on water, the middle area of ​​the floating body is hollow, providing an operating area on water for the lifting mechanism; the floating body is provided with a water storage tank, and the center of gravity of the floating body is changed by controlling the water storage amount in the water storage tank; When the amount of water stored in the water storage tank increases, the center of gravity of the floating body decreases to ensure the stability of the crane during water operations; when the amount of water stored in the water storage tank decreases, the center of gravity of the floating body shifts to facilitate the movement and transfer of the crane.

2. The gantry crane for dock operations according to claim 1, characterized in that: A partition is provided in the water storage tank, and the partition divides the water storage tank into a plurality of water storage chambers, thereby reducing the change of the center of gravity of the floating body caused by the fluctuation of the liquid level in the water storage tank, and ensuring the stability and balance of the floating body; The partition is provided with through holes penetrating both sides, and the through holes connect the plurality of water storage chambers to each other, so as to prevent the center of gravity of the floating body from shifting and causing the crane to tip over.

3. The gantry crane for dock operations according to claim 1 or 2, characterized in that: The two ends of the floating body in the length direction are respectively provided with a guide plate and a buffer plate, and the two ends of the floating body in the length direction are respectively a close end and a far end according to the distance from the shore; The guide plate is arranged on the far end of the floating body to alleviate the impact of water flow on the floating body; The buffer plate is arranged on the proximal end of the floating body to alleviate the collision between the crane and the shore.

4. The gantry crane for dock operations according to claim 3, characterized in that: The guide plate is fixedly mounted on the distal end of the floating body; A telescopic cavity is provided on the proximal end of the float, the buffer plate is slidably installed on the port of the telescopic cavity, and a reset spring is also provided between the buffer plate and the telescopic cavity; a buffer cavity is above the telescopic cavity, the buffer cavity is connected to the telescopic cavity, and the telescopic cavity is filled with liquid.

5. The gantry crane for dock operations according to claim 2, characterized in that: The water storage tank is equipped with a water inlet module and a water outlet module, and the water storage volume in the water storage tank is increased by the water inlet module and the water outlet module; during operation, the water inlet module increases the water storage volume in the water storage tank by pumping water from the natural environment during water operation; the water outlet module reduces the water storage volume in the water storage tank by discharging water in the water storage tank; The water storage tank is also equipped with a cleaning module, which includes a spray head, and the spray head is used to clean the water storage tank and the partition; during cleaning, the water inlet module is connected to the city water system to provide water for the cleaning module; A reversing valve is arranged between the water inlet module, the cleaning module and the water storage tank; when in operation, the reversing valve connects the water inlet module and the inside of the water storage tank to increase the water storage capacity in the water storage tank; when cleaning, the reversing valve connects the water inlet module and the cleaning module to provide a water source for the cleaning module.

6. The gantry crane for dock operations according to claim 5, characterized in that: The partition is rotatably installed in the water storage tank, and the partition can be switched between an operating state and a cleaning state; The partitions in the water storage tank are arranged at intervals along the length direction of the water storage tank; When the partition is in an operating state, the plane on which the partition is located is parallel to the width direction of the water storage tank; When the partitions are in a cleaning state, the planes on which the partitions are located are parallel to the length direction of the water storage tank, and all the partitions are on the same plane.

7. The gantry crane for dock operations according to claim 6, characterized in that: The partition includes a plate body and a rotating rod for driving the plate body to rotate, one end of the rotating rod is fixedly connected to a connecting rod, and the connecting rods are arranged in parallel and are both rotatably connected to the control rod; The movement of the control rod causes the connecting rod to swing, thereby driving the partition to rotate.

8. The gantry crane for dock operations according to claim 1, characterized in that: The lifting mechanism comprises a column, a connecting beam and a hanging beam, and the hanging beam is provided with a lifting assembly; The columns are arranged at both ends of the floating body in the length direction and the width direction, and the connecting beams are arranged at the top ends of the columns, and the connecting beams are used to connect the columns in pairs along the length direction and the width direction of the floating body; The connecting beams are respectively longitudinal beams parallel to the length direction of the floating body and transverse beams parallel to the width direction of the floating body. The hanging beams are parallel to the transverse beams. A linear transmission assembly is arranged on the longitudinal beams. The hanging beams are arranged on the moving end of the linear transmission assembly.

9. A method for using a gantry crane for dock operations, characterized in that: The crane according to any one of claims 1 to 8 is used, wherein the method of use includes an operation method and a cleaning method; the operation method is as follows: S1. Adjust the crane status, adjust the baffle in the water storage tank to the operating status and connect the reversing valve to the water inlet module and the inside of the water storage tank; S2. During movement, the water in the water storage tank is discharged through the water outlet module to improve the center of gravity transfer of the floating body, so as to facilitate the movement and transfer of the crane; S3. Place the length direction of the floating body perpendicular to the shore, and let the close end of the floating body face the shore to form a double-sided dock; S4. During operation, water is pumped from the natural environment through the water intake module to lower the center of gravity of the floating body, so as to ensure the stability of the crane during water operation.

10. The method for using a gantry crane for dock operations according to claim 9, characterized in that: The cleaning method is as follows: S1. Drain the water in the water storage tank through the water outlet module; S2, crane state adjustment, adjust the baffle in the water storage tank to the cleaning state and connect the reversing valve to the water inlet module and the cleaning module; S3. During cleaning, the water inlet module is connected to the city water system to provide water for the cleaning module, so that the sprinkler head sprays and cleans the water storage tank and the partition. At the same time, the water outlet module will continue to drain the water in the water storage tank.

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