Harbor crane transport vessel loading and unloading stabilizing device and loading and unloading system

By installing a vertical support structure with stabilizing columns and fixed bases on the port machinery equipment and utilizing hydraulically driven gear meshing, the instability problem during the loading and unloading process of the port machinery equipment was solved, realizing the stable transfer of equipment between ships and improving loading and unloading efficiency and safety.

CN224589326UActive Publication Date: 2026-08-04INKUNTECH (SHANGHAI) PORT EQUIP ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INKUNTECH (SHANGHAI) PORT EQUIP ENG CO LTD
Filing Date
2025-09-08
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Port machinery equipment is prone to instability during loading and unloading, leading to frequent accidents. Furthermore, the loading and unloading process is highly dependent on the adjustment of water levels in the ship's hold and on command and control, which affects the safety and efficiency of the equipment.

Method used

The vertical support structure consists of stabilizing columns, column guide tubes, and fixed bases. A hydraulic motor drives gears and racks to achieve stable support for the ship's deck. Combined with temporary rails and side rails, it ensures the stability of port machinery equipment during loading and unloading.

Benefits of technology

It improved the stability of port machinery loading and unloading processes, reduced the need for adjusting the water level in the ship's hold, simplified loading and unloading command, shortened loading and unloading time, and reduced the risk of accidents.

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Abstract

The utility model relates to port operation equipment technical field discloses a kind of port machinery transport ship loading and unloading stabilizing device, including stabilizing column, column guide pipe and fixed base, the column guide pipe is fixedly covered outside stabilizing column, vertical support is formed, the side of the column guide pipe is provided with vertical direction rack, driving gear is arranged on the fixed base, the vertical support passes through fixed base, the driving gear is engaged with rack, the driving gear is driven by the driving force provided by hydraulic motor on fixed base, the fixed base is installed to the side of ship deck, the stabilizing column is lowered to seabed, and is resisted to seabed, and the side of ship deck is supported by the engagement of driving gear and rack, and the stability of deck is maintained.The utility model further discloses the loading and unloading system of application stabilizing device.The utility model realizes the requirement and dependence of reducing to ship cabin water quantity adjustment, also greatly reduces the time of pumping water, and the loading and unloading of equipment are quickly completed in high tide level.
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Description

Technical Field

[0001] This utility model relates to the field of port operation equipment technology, and in particular to a port machinery transport vessel loading and unloading stabilization device and loading and unloading system. Background Technology

[0002] Port machinery is typically transported as a complete unit. This ensures that the machine's performance is achieved at the manufacturing base, guarantees quality, reduces on-site workload, and allows the equipment to be put into use as quickly as possible upon arrival at its destination. Shipping is the most common long-distance transportation method.

[0003] However, port machinery transportation falls under the category of specialized transportation, and shipping also presents numerous challenges. First, the transport vessels are often converted ships, and their condition is not always optimal. Second, loading and unloading rely heavily on the onboard command, which is largely based on experience. Third, loading and unloading are closely tied to local tides, typically occurring during high tide to utilize the brief window when the jib is closest to the pier level, completing the transfer of equipment between the pier and the vessel. Fourth, port machinery loading and unloading is mostly side-loading. Moving equipment, especially large gantry cranes, is most dangerous when one side is on the ship and the other on the pier. This is usually mitigated by adjusting the water level in the hull to adjust the ship's height and balance, reducing changes in the ship's center of gravity during equipment movement. In other words, moving the port machinery to one side requires increasing the water level in the other side of the hull. Due to these reasons, accidents during port machinery loading and unloading are frequent, resulting in damage to machinery and ships, and significant losses. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems and provide a port machinery transport vessel loading and unloading stabilization device and loading and unloading system, which can make up for the current problem of insufficient stability of ships during port machinery loading and unloading, reduce the requirements and reliance on the adjustment of the water volume in the ship's hold, and greatly reduce the pumping time, so as to quickly complete the loading and unloading of equipment at high tide.

[0005] The technical solution adopted by this utility model is: A stabilizing device for loading and unloading port machinery transport vessels is characterized by comprising a stabilizing column, a column guide tube, and a fixed base. The column guide tube is fixedly sleeved on the outside of the stabilizing column to form a vertical support. A vertical rack is provided on one side of the column guide tube. A drive gear is provided on the fixed base. The vertical support passes through the fixed base. The drive gear meshes with the rack. The drive gear is driven by a hydraulic motor on the fixed base. The fixed base is installed on the side of the ship's deck. The stabilizing column is lowered to the seabed and abuts against the seabed. The meshing of the drive gear and the rack provides pressure support to the side of the ship's deck, maintaining the stability of the deck.

[0006] Furthermore, a receiving hole is formed on the fixed base, the vertical support is inserted into the receiving hole, and a guide wheel assembly is provided on the receiving hole.

[0007] Furthermore, the fixed base is fixed to the ship deck by a clamp plate.

[0008] Furthermore, a fixing frame is provided on the fixed base, and a maintenance platform is provided on the fixing frame.

[0009] Furthermore, a base plate is provided at the lower end of the stabilizing column for support on the seabed.

[0010] Furthermore, the length of the stabilizing column is greater than 20 meters.

[0011] A port machinery transport vessel loading and unloading system is characterized by comprising at least two sets of the aforementioned stabilizing devices, which are installed on the decks of the loading and unloading vessel at least at the fore and aft positions on the side closest to the quay. A temporary track is set between the loading and unloading vessel and the quay. When the port machinery loads or unloads from the temporary track, the stabilizing devices maintain the stability of the loading and unloading vessel by adjusting the meshing position of the drive gear and the rack.

[0012] Furthermore, multiple support rails are installed between the loading / unloading vessel and the dock.

[0013] The beneficial effects of this utility model are: (1) The stabilizing device drives the stabilizing column to move up and down through gear and rack transmission to ensure the stability of the loading and unloading ship when it is loaded and unloaded on the port machinery equipment. (2) It has a simple structure, low cost, and is easy to operate, reducing the reliance on unloading command; (3) It reduces the requirements and reliance on the adjustment of the water volume in the ship's hold, and also greatly reduces the pumping time, allowing the equipment to be loaded and unloaded quickly at high tide. Attached Figure Description

[0014] Appendix Figure 1 This is a three-dimensional structural diagram of the stabilizing device of this utility model; Appendix Figure 2 This is a magnified view of the location of the stabilizing device's fixed base; Appendix Figure 3 This is a top view of the stabilizing device; Appendix Figure 4 It is attached Figure 3 A magnified view of part A in the image; Appendix Figure 5 This is a schematic diagram of the port machinery loading and unloading process; Appendix Figure 6 It is attached Figure 5 A magnified view of part B in the image.

[0015] The labels in the attached diagram are as follows: 1. Stabilizing device; 2. Stabilizing column; 3. Column guide tube; 4. Fixing base; 5. Base plate; 6. Rack; 7. Drive gear; 8. Accommodating hole; 9. Guide wheel assembly; 10. Deck 11. Hydraulic motor; 12. Hydraulic power unit; 13. Fixed column; 14. Maintenance platform; 15. Dock; 16. Temporary track; 17. Harbor machinery; 18. Supporting equipment. Detailed Implementation

[0016] The following detailed description, in conjunction with the accompanying drawings, illustrates the specific implementation methods of the port machinery transport vessel loading and unloading stabilization device and loading and unloading system of this utility model.

[0017] See appendix Figure 1 , 2 The stabilizing device 1 for port machinery transport vessels includes a stabilizing column 2, a column guide tube 3, and a fixed base 4. The column guide tube 3 is fixedly sleeved on the outside of the stabilizing column 2 to form a vertical support. A base plate 5 is installed at the lower end of the stabilizing column 2 to provide support to the seabed. The length of the stabilizing column 2 is greater than 20 meters, ensuring a maximum downward distance of 20+3 meters and an upward movement distance of 20-7 meters.

[0018] A vertical rack 6 is provided on one side of the column guide tube 3, and a drive gear 7 is provided on the fixed base 4. The vertical support passes through the fixed base 4, and the drive gear 7 meshes with the rack 6.

[0019] The fixed base 4 is secured to the ship deck 10 via a clamping plate. Multiple fixing points are provided on the fixed base 4 to ensure a firm fit with the deck 10. The drive gear 7 is driven by a hydraulic motor 11 mounted on the fixed base 4. A hydraulic station 12 is installed on the fixed base 4 to provide hydraulic power to the hydraulic motor 11. The hydraulic motor 11 is a low-speed, high-torque 5-star hydraulic motor, the model of which is determined according to the size of the ship.

[0020] See appendix Figure 3 , 4 The fixed base 4 is provided with multiple fixed columns 13 to form a frame fixing structure, and a receiving hole 8 is formed in the middle. The vertical support is inserted into the receiving hole 8. A guide wheel group 9 is provided on the fixing structure on the receiving hole 8 so that the vertical support moves relative to the fixed base 4 in the vertical direction.

[0021] A maintenance platform 14 is installed on the fixed structure of the fixed base 4 for staff to monitor and direct the loading and unloading work of the port machinery 17.

[0022] See appendix Figure 5 , 6The fixed base 4 is used to install on the side of the ship deck 10. The stabilizing column 2 is lowered to the seabed and abuts against the seabed. The drive gear 7 and the rack 6 mesh to provide pressure support for the side of the ship deck 10 and keep the deck 10 stable.

[0023] Stabilizing devices 1 are installed on the port machinery transport vessel to form a loading and unloading system. At least two sets of stabilizing devices 1 are installed on the deck 10 of the loading and unloading vessel at the fore and aft positions on the side of the vessel closest to the quay 15. A temporary track 16 is set between the loading and unloading vessel and the quay 15. When the port machinery 17 loads or unloads from the temporary track 16, the stabilizing device 1 adjusts the meshing position of the drive gear 7 and the rack 6 to adjust the height of the loading and unloading vessel by adjusting the vertical support, so that the loading and unloading vessel remains stable. The height of the vessel can also be adjusted by changing the water level inside the vessel. Multiple sideboards 18 are set between the loading and unloading vessel and the quay 15 to ensure non-rigid contact between the hull and the quay 15.

[0024] The loading and unloading process of the port machinery 17 transport vessel using the stabilizing device 1 of this patent is as follows: The first step is to pre-lay the tracks on the dock 15 that connect to the ship; The second step is to install stabilizing devices 1 at the fore and aft positions on the deck 10 on the side of the loading and unloading ship near the dock 15. The third step is to begin loading and unloading operations at high tide. Operate stabilization device 1 to lower stabilization column 2 to the seabed, hold it against the seabed, and maintain pressure to keep the loading and unloading ship stable. The fourth step involves using a trolley to lift and transfer the 17th piece of equipment from the port machinery to the track; The fifth step is to tow the port machinery 17 onto or off the ship using the traction system. During the entire loading and unloading process, the power of the drive gear 7 of the stabilizing device 1 is adjusted according to the balance of the loading and unloading ship and the tide level. Step 6: After the equipment 17 of the port machinery is loaded and unloaded, deactivate the stabilizing device 1 and disassemble and store it.

[0025] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A port machinery transport vessel loading and unloading stabilizing device, characterized by: The system includes a stabilizing column, a column guide tube, and a fixed base. The column guide tube is fixedly sleeved on the outside of the stabilizing column to form a vertical support. A vertical rack is provided on one side of the column guide tube. A drive gear is provided on the fixed base. The vertical support passes through the fixed base. The drive gear meshes with the rack. The drive gear is driven by a hydraulic motor on the fixed base. The fixed base is installed on the side of the ship's deck. The stabilizing column is lowered to the seabed and abuts against the seabed. The meshing of the drive gear and the rack provides pressure support to the side of the ship's deck, keeping the deck stable.

2. A port machinery transport vessel stabilizing arrangement according to claim 1, characterized in that: A receiving hole is formed on the fixed base, the vertical support is inserted into the receiving hole, and a guide wheel assembly is provided on the receiving hole.

3. The port machinery transport vessel stabilizing device of claim 1, wherein: The fixed base is fixed to the ship deck by a clamp.

4. A port machinery transport vessel stabilizing arrangement according to any one of claims 1 to 3, characterized in that: A fixing frame is installed on the fixed base, and a maintenance platform is installed on the fixing frame.

5. A port machinery transport vessel stabilizing arrangement according to any one of claims 1 to 3, characterized in that: The lower end of the stabilizing column is provided with a base plate for support on the seabed.

6. A port machinery transport vessel stabilizing arrangement according to any one of claims 1 to 3, characterized in that: The length of the stabilizing column is greater than 20 meters.

7. A port machinery transport vessel handling system, characterized by: The stabilizing device comprises at least two sets of stabilizing devices as described in any one of claims 1 to 6, installed at least on the deck of the loading / unloading vessel at the fore and aft positions on the side near the quay. A temporary track is provided between the loading / unloading vessel and the quay. When the port machinery loads or unloads from the temporary track, the stabilizing device keeps the loading / unloading vessel stable by adjusting the meshing position of the drive gear and the rack.

8. A harbour craft transport vessel handling system according to claim 7, characterised in that: Multiple support rails are installed between the loading / unloading vessel and the dock.