Rudder support device for a transport ship with automatic adjustment

Abstract

The application discloses a stern jump support device for a transport ship with an automatic adjusting function, and the two sides of a supporting column body are connected with a ship body and a first ramp, which is used for adjusting the overall angle of the first ramp and a second ramp during operation, and then the flexible adjustment of the second ramp and the first ramp is completed through an adjusting assembly according to the gap between the second ramp and a wharf, and the angle of the second ramp and the wharf is fed back through cooperation of an angle sensor, so that sufficient contact of the stern jump plate and the wharf is ensured, two groups of swing arms drive the second ramp to flexibly rotate along the outer side of a positioning seat through cooperation of a linear shaft at the top and a slot, the second ramp can drive a positioning shaft to rotate along the inner side of the first ramp, so that the angle adjustment of the first ramp and the second ramp is completed, and the device effectively improves the operation range and increases the practicability; after the second ramp is attached to the wharf, a plurality of hydraulic buffers at the bottom can buffer the acting force of the second ramp during butt joint through built-in hydraulic rods, so that the damage of the second ramp caused by excessive friction is prevented.

Description

Technical Field

[0001] This invention belongs to the field of support equipment technology, specifically relating to a stern ramp support device for transport ships with automatic adjustment function. Background Technology

[0002] When transport ships dock, the stern ramp needs to be opened to a near-horizontal position to facilitate personnel movement, material handling, and the loading and unloading of power pipelines. The stern ramp is several meters above the dock floor; to ensure production safety, it requires temporary support pillars underneath.

[0003] A search revealed that publication number CN214190039U discloses a temporary support device for the stern ramp of a roll-on / roll-off vessel. In this invention, a second bevel gear meshes with a first bevel gear, causing the first bevel gear to drive a screw tube to rotate, thus moving a hollow screw up and down. This allows for adjustment of the hollow screw's height according to the different ship types and the stern ramp's distance from the ground, reducing the device's limitations and avoiding material waste during modifications. It saves time, effort, and resources. However, this device cannot be flexibly connected at the stern ramp end, preventing flexible adjustment of the stern ramp. The inability to adjust the stern ramp support device may cause the following problems:

[0004] Poor applicability: If the stern ramp support device is not adjustable, it may not be applicable to stern ramps of different heights, thus limiting its use on different ships.

[0005] Low work efficiency: If it cannot be adjusted, other methods need to be found to adapt to different stern ramp heights, which may increase workload and time, and reduce work efficiency.

[0006] Safety issues: If it cannot be adjusted, uneven load-bearing or unstable support may occur, which may affect the stability and navigation safety of the ship, thus posing certain safety hazards.

[0007] To address this issue, a stern shoving support device for transport ships with automatic adjustment function was designed. Summary of the Invention

[0008] To address the problems mentioned in the background section, this invention provides a stern ramp support device for transport ships with an automatic adjustment function. During use, the buttress column body connects to the hull and the first ramp on both sides, allowing for adjustment of the overall angle between the first and second ramps during operation. Then, based on the gap between the second ramp and the dock, the adjustment components flexibly adjust the second ramp relative to the first ramp, and an angle sensor provides feedback on the angle between the second ramp and the dock, ensuring full contact between the stern ramp and the dock, ensuring the stability of the overall device, and enhancing the safety of personnel boarding the ship.

[0009] During the adjustment process, the stepper motor inside the dustproof housing can be started through the control terminal. The motor shaft drives the swing arm to rotate. The two sets of swing arms drive the second ramp to rotate flexibly along the outside of the positioning seat through the cooperation of the top linear shaft and slot. At the same time, the second ramp can drive the positioning shaft to rotate along the inside of the first ramp, so that the first ramp and the second ramp can complete the angle adjustment. Compared with the traditional single angle adjustment, this device effectively improves the operating range and increases practicality.

[0010] On the other hand, during the adjustment process, the support cylinder inside the support frame can be activated simultaneously. Its piston end can push and pull the connecting column on the outside while the second ramp is rotating. The connecting column rotates along the hinge of the positioning seat and completes the gap compensation between the first ramp and the second ramp, thereby strengthening the support effect and improving stability. After the second ramp is attached to the dock, the auxiliary side plates on both sides act synchronously on both sides of the second ramp. The multiple sets of hydraulic buffers at the bottom can buffer the force when the second ramp is docked through the built-in hydraulic rods, preventing excessive friction from causing damage to the second ramp and improving the service life of the device.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a stern ramp support device for transport ships with automatic adjustment function, comprising a flexible support structure, wherein the flexible support structure includes a first ramp, a second ramp, a positioning shaft, a buttress body, auxiliary side plates, and a hydraulic buffer. The bottom of the buttress body is fixedly connected to the surface of the first ramp, the positioning shaft is rotatably connected to the outside of the first ramp, the second ramp is fixedly connected to one side of the positioning shaft, the auxiliary side plates are fixedly connected to both sides of the second ramp, the hydraulic buffer is fixedly connected to the bottom of the auxiliary side plates, and an adjustment component is also provided on the outside of the first ramp.

[0012] As a preferred embodiment of the stern ramp support device for transport ships with automatic adjustment function of the present invention, the adjustment assembly includes a support frame, a support cylinder, a connecting column, a positioning seat, a dustproof shell, a swing arm, and a linear shaft. The support frame is fixedly connected to the outside of the first ramp, the support cylinder is threadedly connected to the inside of the support frame, one end of the connecting column is fixedly connected to the piston end of the support cylinder, the positioning seat is hinged to the outside of the connecting column, the dustproof shell is rotatably connected to the outside of the swing arm, and the linear shaft passes through the top of the swing arm and engages with the inside of the second ramp.

[0013] As a preferred embodiment of the stern jump support device for transport ships with automatic adjustment function of the present invention, a stepper motor is also provided inside the dustproof housing, and the motor shaft of the stepper motor is fixedly connected to one end of the swing arm through a coupling.

[0014] As a preferred embodiment of the stern ramp support device for transport ships with automatic adjustment function of the present invention, slots adapted to the dimensions of the linear shaft are also provided on both sides of the second ramp.

[0015] As a preferred embodiment of the stern jump support device for transport ships with automatic adjustment function of the present invention, a stabilizing bracket is also provided on the outer side of the dustproof shell, and the two ends of the stabilizing bracket are respectively fixedly connected to the positioning seat and the surface of the dustproof shell.

[0016] As a preferred embodiment of the stern ramp support device for transport ships with automatic adjustment function of the present invention, an angle sensor is also provided on the outer center of the auxiliary side plate.

[0017] As a preferred embodiment of the stern jump support device for transport ships with automatic adjustment function of the present invention, the hydraulic buffer is provided in several groups, and the several groups of hydraulic buffers are arranged at equal intervals at the bottom of the auxiliary side plate.

[0018] As a preferred embodiment of the stern ramp support device for transport ships with automatic adjustment function of the present invention, the first ramp is further provided with limit rods and reinforcing ribs on both sides. The reinforcing ribs are welded and fixed to one side of the limit rods, and the limit rods are fixedly connected to the surface of the first ramp.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, the buttress body is connected to the hull and the first ramp on both sides, which is used to adjust the overall angle of the first ramp and the second ramp during operation. Then, according to the gap between the second ramp and the dock, the second ramp and the first ramp are flexibly adjusted by the adjustment component. An angle sensor is used to provide feedback on the angle between the second ramp and the dock, ensuring full contact between the stern ramp and the dock, ensuring the stability of the overall device, and enhancing the safety of boarding personnel.

[0021] 2. In this invention, two sets of swing arms drive the second ramp to rotate flexibly along the outer side of the positioning seat through the cooperation of the top linear shaft and slot. The second ramp can drive the positioning shaft to rotate along the inner side of the first ramp, so that the first ramp and the second ramp can complete the angle adjustment. Compared with the traditional single angle adjustment, this device effectively improves the operating range and increases practicality.

[0022] 3. In this invention, after the second ramp is attached to the dock, the auxiliary side plates on both sides act synchronously on both sides of the second ramp. The multiple sets of hydraulic buffers at the bottom can buffer the force when the second ramp is connected through the built-in hydraulic rods, preventing excessive friction from causing damage to the second ramp and improving the service life of the device.

[0023] 4. In this invention, the automatically adjusting stern support device for transport ships is mainly used for stern support. It features automatic adjustment, allowing the support strength to be adjusted automatically according to the ship's load and navigation status, ensuring stability under various navigation conditions. This improves the ship's stability and safety, reducing cargo damage or personal injury caused by swaying or tilting. Simultaneously, this device reduces the workload of crew members and improves transportation efficiency. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a diagram illustrating the adjustment effect of the second ramp in this invention;

[0027] Figure 3 This is a distribution diagram of the hydraulic buffer in this invention;

[0028] Figure 4 This is a schematic diagram of the inner structure of the support frame in this invention;

[0029] Figure 5 This is a cross-sectional view of the dustproof outer shell in this invention;

[0030] Figure 6 This is an enlarged structural schematic diagram of the reinforcing rib in this invention;

[0031] In the picture:

[0032] 1. Flexible support structure; 11. First ramp; 12. Second ramp; 13. Positioning shaft; 14. Buttress column body; 15. Auxiliary side plate; 16. Hydraulic buffer; 2. Adjustment assembly; 21. Support frame; 22. Support cylinder; 23. Connecting column; 24. Positioning seat; 25. Dustproof shell; 26. Swing arm; 27. Linear shaft; 3. Stepper motor; 4. Slot; 5. Stable bracket; 6. Angle sensor; 7. Limiting rod; 8. Reinforcing rib; 9. Guardrail. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1 As shown:

[0035] According to CN214190039U, a stern ramp support device for transport ships with automatic adjustment function is connected by a second bevel gear and a first bevel gear. The first bevel gear drives the screw tube to rotate, thereby causing the hollow screw to move up and down. This allows for adjustment of the height of the hollow screw according to the height of the stern ramp above the ground for different ship types, reducing the limitations of the device's use and avoiding the waste of materials for modification. It saves time, effort, and resources. However, this device cannot be flexibly connected at the stern ramp end, thus failing to achieve flexible adjustment of the stern ramp. Based on this, a flexible support structure 1 is added.

[0036] like Figure 1 and Figure 2 As shown:

[0037] In an optional embodiment: the flexible support structure 1 includes a first ramp 11, a second ramp 12, a positioning shaft 13, a buttress body 14, an auxiliary side plate 15, and a hydraulic buffer 16. The bottom of the buttress body 14 is fixedly connected to the surface of the first ramp 11. The positioning shaft 13 is rotatably connected to the outside of the first ramp 11. The second ramp 12 is fixedly connected to one side of the positioning shaft 13. The auxiliary side plate 15 is fixedly connected to both sides of the second ramp 12. The hydraulic buffer 16 is fixedly connected to the bottom of the auxiliary side plate 15. An angle sensor 6 is also provided in the middle of the outer side of the auxiliary side plate 15.

[0038] In this implementation plan: When in use, the buttress body 14 is connected to the hull and the first ramp 11 on both sides. It is used to adjust the overall angle of the first ramp 11 and the second ramp 12 during operation. Then, according to the gap between the second ramp 12 and the dock, the adjustment component 2 is used to flexibly adjust the second ramp 12 and the first ramp 11. The angle sensor 6 is used to provide feedback on the angle between the second ramp 12 and the dock, ensuring full contact between the stern ramp and the dock, ensuring the stability of the overall device, and enhancing the safety of boarding personnel.

[0039] Furthermore:

[0040] like Figure 2 , Figure 4 and Figure 5 As shown:

[0041] In an optional embodiment: the adjustment assembly 2 includes a support frame 21, a support cylinder 22, a connecting column 23, a positioning seat 24, a dustproof housing 25, a swing arm 26, and a linear shaft 27. The support frame 21 is fixedly connected to the outside of the first ramp 11, the support cylinder 22 is threadedly connected to the inside of the support frame 21, one end of the connecting column 23 is fixedly connected to the piston end of the support cylinder 22, the positioning seat 24 is hinged to the outside of the connecting column 23, the dustproof housing 25 is rotatably connected to the outside of the swing arm 26, and the linear shaft 27 passes through the top of the swing arm 26 and engages with the inside of the second ramp 12. A stepper motor 3 is also provided inside the dustproof housing 25. The motor shaft of the stepper motor 3 is fixedly connected to one end of the swing arm 26 through a coupling. Slots 4 that are adapted to the size of the linear shaft 27 are also provided on both sides of the second ramp 12.

[0042] In this embodiment: During the adjustment process, the stepper motor 3 inside the dustproof housing 25 can be started through the control terminal. Its motor shaft drives the swing arm 26 to rotate. The two sets of swing arms 26 drive the second ramp 12 to rotate flexibly along the outer side of the positioning seat 24 through the cooperation of the top linear shaft 27 and slot 4. At the same time, the second ramp 12 can drive the positioning shaft 13 to rotate along the inner side of the first ramp 11, so that the first ramp 11 and the second ramp 12 complete the angle adjustment. Compared with the traditional single angle adjustment, this device effectively improves the operating range and increases safety in conjunction with the guardrail 9.

[0043] Based on the above:

[0044] like Figure 3 and Figure 6 As shown:

[0045] In an optional embodiment: a stabilizing bracket 5 is also provided on the outside of the dustproof housing 25. The two ends of the stabilizing bracket 5 are fixedly connected to the positioning seat 24 and the surface of the dustproof housing 25, respectively. Several sets of hydraulic buffers 16 are provided, and the several sets of hydraulic buffers 16 are arranged at equal intervals on the bottom of the auxiliary side plate 15. Limiting rods 7 and reinforcing ribs 8 are also provided on both sides of the first ramp 11. The reinforcing ribs 8 are welded and fixed to one side of the limiting rods 7, and the limiting rods 7 are fixedly connected to the surface of the first ramp 11.

[0046] In this embodiment: the support cylinder 22 inside the support frame 21 can be activated synchronously. Its piston end can push and pull the connecting column 23 on the outside while the second ramp 12 is rotating. The connecting column 23 rotates along the hinge of the positioning seat 24 and completes the gap compensation between the first ramp 11 and the second ramp 12, and strengthens the support effect and improves stability. After the second ramp 12 is attached to the dock, the auxiliary side plates 15 on both sides act synchronously on both sides of the second ramp 12. The multiple sets of hydraulic buffers 16 at the bottom can buffer the force when the second ramp 12 is docked through the built-in hydraulic rod, prevent excessive friction from causing damage to the second ramp 12, and improve the service life of the device. After the first ramp 11 is vertical, the hook surface of the hook can be hooked with the limiting rod 7. The reinforcing rib 8 can strengthen the stability of the limiting rod 7 and prevent breakage and hooking.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stern ramp support device for transport ships with automatic adjustment function, comprising a flexible support structure (1), characterized in that: The flexible support structure (1) includes a first ramp (11), a second ramp (12), a positioning shaft (13), a buttress body (14), an auxiliary side plate (15), and a hydraulic buffer (16). The bottom of the buttress body (14) is fixedly connected to the surface of the first ramp (11). The positioning shaft (13) is rotatably connected to the outside of the first ramp (11). The second ramp (12) is fixedly connected to one side of the positioning shaft (13). The auxiliary side plate (15) is fixedly connected to both sides of the second ramp (12). The hydraulic buffer (16) is fixedly connected to the bottom of the auxiliary side plate (15). An adjustment component (2) is also provided on the outside of the first ramp (11). The adjustment assembly (2) includes a support frame (21), a support cylinder (22), a connecting column (23), a positioning seat (24), a dustproof shell (25), a swing arm (26), and a linear shaft (27). The support frame (21) is fixedly connected to the outside of the first ramp (11). The support cylinder (22) is threadedly connected to the inside of the support frame (21). One end of the connecting column (23) is fixedly connected to the piston end of the support cylinder (22). The positioning seat (24) is hinged to the outside of the connecting column (23). The dustproof shell (25) is rotatably connected to the outside of the swing arm (26). The linear shaft (27) passes through the top of the swing arm (26) and engages with the inside of the second ramp (12).

2. The stern ramp support device for transport ships with automatic adjustment function according to claim 1, characterized in that: The dustproof housing (25) is also equipped with a stepper motor (3), and the motor shaft of the stepper motor (3) is fixedly connected to one end of the swing arm (26) through a coupling.

3. The stern ramp support device for transport ships with automatic adjustment function according to claim 2, characterized in that: The second ramp (12) is also provided with slots (4) on both sides that are adapted to the size of the linear shaft (27).

4. The stern ramp support device for transport ships with automatic adjustment function according to claim 2, characterized in that: A stabilizing bracket (5) is also provided on the outside of the dustproof housing (25), and the two ends of the stabilizing bracket (5) are fixedly connected to the positioning seat (24) and the surface of the dustproof housing (25), respectively.

5. The stern ramp support device for transport ships with automatic adjustment function according to claim 1, characterized in that: An angle sensor (6) is also provided on the outer middle part of the auxiliary side plate (15).

6. The stern ramp support device for transport ships with automatic adjustment function according to claim 1, characterized in that: The hydraulic buffer (16) is provided in several groups, and the several groups of hydraulic buffers (16) are arranged at equal intervals at the bottom of the auxiliary side plate (15).

7. The stern ramp support device for transport ships with automatic adjustment function according to claim 1, characterized in that: The first ramp (11) is also provided with limit rods (7) and reinforcing ribs (8) on both sides. The reinforcing ribs (8) are welded and fixed to one side of the limit rods (7), and the limit rods (7) are fixedly connected to the surface of the first ramp (11).

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