Marine lifting fin system and control method thereof

Abstract

This invention provides a lifting fin system for ships and a control method thereof. [Solution] The ship's lifting fin system includes a trunk and a fin plate provided inside the trunk, the height of the trunk being greater than the height of the fin plate, a fin plate lifting pulley system used to drive the fin plate up and down along the trunk fixed to the top of the trunk, a lock base fixed to the area of ​​the inner wall of the trunk near the bottom, and an internal locking device used to engage with the lock base provided inside the fin plate.

Description

Technical Field

[0001] This application belongs to the technical field of ocean voyage ships and underwater exploration, and particularly relates to a lifting fin system for ships and its control method.

Background Art

[0002] As the years of use of ocean research vessels pass by, the performance of their equipment becomes outdated and their actual survey capabilities decline. Old - type research vessels fix exploration equipment to the bottom of the ship, and even when the equipment is not in operation, it cannot be lifted and recovered. The resistance during navigation and the failure rate of the equipment increase. In case of failure or equipment replacement, it is necessary to return to the dock for repair.

[0003] Currently, among the research vessels operating in our country, in the installation of underwater exploration equipment, basically lifting fin plates are equipped. However, many of the existing fin - plate locking mechanisms are based on external locking of the fin plates and use underwater hydraulic cylinders. Underwater hydraulic cylinders not only have high manufacturing costs but are also easily attached by marine organisms. In case of failure, it is necessary to return to the dock for repair. Also, there is a risk of marine pollution due to oil leakage. In the non - operating state of the fin plates, the locking device is constantly impacted and corroded by seawater.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This application provides a lifting fin system for ships and its control method to solve the problem of low repair efficiency of the fin - plate locking mechanism.

Means for Solving the Problems

[0005] To solve the above - mentioned technical problems, the technical solutions adopted by this application are as follows.

[0006] In one embodiment, the present application provides a ship lifting fin system. The ship lifting fin system includes a trunk and a fin plate provided inside the trunk. The height of the trunk is greater than the height of the fin plate. A fin plate lifting pulley system, used to drive the fin plate to move up and down along the trunk, is fixed to the top plate of the trunk. A locking base is fixed to the area of ​​the inner wall of the trunk near the bottom. An internal locking device is provided within the fin plate, which is used to engage with the locking base.

[0007] Furthermore, the fin plate has a plurality of T-shaped holes formed coaxially along the height direction, Each of the T-shaped holes is provided with a removable mounting plate used to seal the T-shaped hole.

[0008] Furthermore, a repair space is further formed in the intermediate region in the height direction of the trunk. The aforementioned repair space is connected to the trunk, and a crane and a repair vehicle are located inside.

[0009] Furthermore, internal guide rails and internal pressure-receiving ribs are fixed to the inner wall of the trunk, which are used to guide the movement trajectory of the fin plate. The side walls of the fin plate are in close contact with both the internal guide rail and the internal pressure-receiving rib.

[0010] Furthermore, the internal locking device includes a hydraulic cylinder and a link slider mechanism connected to the hydraulic cylinder. The link slider mechanism includes an insertion member and a link, The insertion member protrudes from the side wall of the trunk and can be inserted into the lock base. The link is rotatably connected to the insertion member, and as the hydraulic cylinder moves up and down, it can drive the insertion member to protrude from the side wall of the trunk or be retracted into the trunk.

[0011] Furthermore, a protruding rib plate is fixed to the outer wall of the fin plate. The protruding rib plate is provided at a distance from the bottom wall of the fin plate. The fin plate is movable downward until the protruding rib plate contacts the bottom wall of the trunk.

[0012] In another embodiment, the present application provides a method for controlling a ship's lifting fin system. The method for controlling the ship's lifting fin system is: When performing navigation operations, the navigation operation preparation step involves lowering the fin plate (2) so that the bottom region of the fin plate is located below the hull baseline, When performing repair work, the repair preparation step involves raising the fin plate to near the top of the trunk so that the fin plate can be repaired through the repair space, When performing the designated position installation work, the procedure includes a preparation step for the designated position installation work, in which all of the mounting plates are removed and the fin plates are lowered until the internal locking device and the locking base (14) are locked, so that the test equipment can be lowered into the sea via the fin plates.

[0013] Furthermore, the navigation preparation step is, Step S1 involves attaching the aforementioned mounting plate to close all T-shaped holes, Step S2 involves activating the fin plate lifting pulley system to lower the fin plate 2 until the bottom region of the fin plate is in seawater, The process includes step S3, which drives the internal locking device to lock with the lock base.

[0014] Furthermore, the repair work preparation step is, Step S1 involves activating the fin plate lifting pulley system to raise the fin plate to near the top of the trunk, The procedure includes step S2 of attaching a temporary plate so that the fin plate can be repaired using the crane and the repair vehicle.

[0015] Furthermore, the preparation step for the installation work at the designated location is: Step S1 involves activating the fin plate lifting pulley system to raise the fin plate above the height of the main deck of the hull, then removing the mounting plate attached inside the fin plate to form a moonpool, and using the fin plate lifting pulley system to lower the fin plate vertically along the internal guide rail, Step S2 involves lowering the fin plate until the protruding rib plate contacts the bottom wall of the trunk, Step S3 involves driving the internal locking device so that it locks with the lock base, The procedure includes step S4, which involves connecting the instruments necessary for underwater exploration to a hooked rope of an underwater installation and release device. [Effects of the Invention]

[0016] According to this invention, the following beneficial effects will be achieved.

[0017] 1. The lifting fin system of the present invention enables three operating states: navigation work mode, repair work mode, and designated position installation mode. By removing the mounting plate, the fin plate can be converted into a moonpool, allowing for the installation of underwater exploration equipment, saving space within the vessel while facilitating the release of exploration equipment and data collection. A repair system can be installed so that there is no need to return to dock in the event of a fin plate failure. When the fin plate is in navigation work mode, the internal locking device is located inside the trunk, reducing corrosion and impact of the internal locking device by seawater. Furthermore, when not in operation, the fin plate can be stored inside the trunk, reducing the resistance of the vessel during navigation caused by the fin.

[0018] 2. The lifting fin is lifted and lowered by the fin plate lifting pulley system to switch to different operating positions. The fin plate lifting pulley system has characteristics such as a simple structure, high safety and reliability. In addition, since the repair system is arranged in the trunk, when the fin plate fails, there is no need to return to the dock for repair, which is more economical.

[0019] 3. By engaging the internal locking device with the locking base and abutting and locking with the internal guide rail and the internal pressure-receiving rib, a three-point locking effect on the fin plate is realized, ensuring the stability of the fin plate in the operating state. At the same time, due to the design of the internal locking device, even when the fin plate is in the ascending state, the internal locking device will not be eroded by seawater and has a longer service life.

Brief Description of the Drawings

[0020] Hereinafter, the present application will be further described in combination with the drawings and embodiments. [Figure 1] It is a partial structural schematic diagram showing the internal structure of the trunk of the present application. [Figure 2] It is a partial structural schematic diagram showing the lifting device of the present application. [Figure 3] It is a partial structural schematic diagram showing the internal structure of the repair space of the present application. [Figure 4] It is a partial structural schematic diagram showing the internal structure of the fin plate of the present application. [Figure 5] It is a partial structural schematic diagram showing the internal locking device of the present application.

Modes for Carrying Out the Invention

[0021] To facilitate the understanding of the present application, hereinafter, the present application will be more comprehensively described while referring to the related drawings. The drawings show embodiments of the present application. However, the present application is not limited to the embodiments described in this specification and can be realized in many different forms. Rather, these embodiments are provided to make the disclosure content of the present application more thorough and comprehensive.

[0022] Referring to Figures 1 to 5, the ship's lifting fin system includes a trunk 1, which contains a fin plate 2. The trunk 1 includes a housing 11, an internal guide rail, an internal pressure-receiving rib 13, and a locking base 14. To facilitate the lifting and lowering of the fin plate 2, an airfoil-shaped hole corresponding to the fin plate 2 is formed in the bottom of the housing 11. The internal guide rail 12 is fixed to the inner wall of the housing 11 and engages with the narrower end of the fin plate 2. The internal pressure-receiving rib 13 and the locking base 14 are similarly fixed to the inner wall of the housing 11 and both contact the surfaces on both sides of the fin plate 2 and are used to assist in locking the position of the fin plate 2.

[0023] The side of the housing 11 is in communication with the repair space 3. If the fin plate 2 malfunctions, it can be accessed and repaired through the repair space 3. Repair equipment can also be placed in the repair space 3. A crane 31 is fixed to the top wall of the repair space 3, and a moving rail 32 is laid at the bottom of the repair space 3. A repair vehicle 33 that slides on the moving rail 32 is placed inside the repair space 3. The repair vehicle 33 and the crane 31 enable the movement of repair parts and repair workers.

[0024] Furthermore, a temporary plate 4 may be provided inside the trunk 1. When the lifting fin system according to the present invention is in a repair state, the temporary plate 4 is attached so as to be flush with the bottom wall of the repair space 3, and a movable rail 32 is laid so as to extend above the temporary plate 4, thereby bringing the repair equipment closer to the fin plate 2 and facilitating repairs.

[0025] The trunk 1 is further equipped with a lifting device, which includes two lifting pulley systems, namely a fin plate lifting pulley system 5 and an underwater equipment pulley system 6. The fin plate lifting pulley system 5 includes a pulley motor 51 and a pulley rib set 52 fixed to the top of the housing 11, and the underwater equipment pulley system 6 includes an exploration equipment pulley motor 61, a fixed pulley 62, and a rope with a hook for an underwater release device, both fixed to the top of the housing 11.

[0026] By providing the fin plate lifting pulley system 5, the fin plate 2 is raised and lowered vertically within the trunk 1. Furthermore, when the fin plate 2 is in operation, the fin plate lifting pulley system 5 is used to move the fin plate 2 downward until it is partially submerged, thereby assisting the movement of the hull. When the fin plate 2 is in non-operational state, the fin plate lifting pulley system 5 is used to store the fin plate 2 within the trunk 1, preventing contact with water and reducing resistance to the forward movement of the hull. It is also possible to shorten the contact time between the fin plate 2 and seawater and the time it is subjected to impact from seawater.

[0027] The fin plate 2 has a shell structure, and 1.5 m x 2 m T-shaped holes 22 are coaxially formed in the top wall, bottom wall, and reinforcing rib plate 21 inside the fin plate 2. A removable mounting plate (not shown) capable of closing the T-shaped hole 22 is provided in each of the T-shaped holes 22. When the fin plate 2 is in the cruising state, the mounting plates are assembled to the fin plate 2, and the mounting plates close the T-shaped holes 22, thereby achieving a sealed state for the entire fin plate 2. Lifting and lowering exploration equipment is installed inside the fin plate 2. When the fin plate 2 is in the designated position setting mode, the mounting plates are removed to convert the fin plate 2 into a moonpool.

[0028] Furthermore, an internal locking device 7 is provided within the fin plate 2. The internal locking device 7 includes a hydraulic cylinder 71 and a link slider mechanism 72. One end of the link slider mechanism 72 is connected to the hydraulic cylinder 71, and the other end protrudes from the side wall of the fin plate 2 and is used to fix the position of the fin plate 2 by engaging with the lock base 14. The link slider mechanism 72 includes a slider 721 that moves vertically together with the hydraulic cylinder 71, and a link 722 that is rotatably connected to the slider 721. The end of the link 722 that is away from the slider 721 is rotatably connected to an insertion member 723. A lock hole 23 is formed in the inner wall of the fin plate 2 for the link 722 to protrude, and the insertion member 723 is slidable within the lock hole 23. A seal is also provided between the lock hole 23 and the insertion member 723. The seal prevents seawater from flowing back into the fin plate 2 from the lock hole 23.

[0029] Specifically, the hydraulic cylinder 71 is fixed to the reinforcing rib plate 21 inside the fin plate 2 by bolts, and the slider 721 is connected to the hydraulic cylinder 71. The hydraulic cylinder 71 moves downward, rotating the link 722, which in turn pushes the insertion member 723 out from the side of the fin plate 2. Meanwhile, multiple lock bases 14 are attached to the inner wall of the trunk 1, and the multiple lock bases 14 are provided in a one-to-one correspondence with the positions of the multiple link slider mechanisms 72. When the fin plate 2 moves and the positions of the inner locking device 7 and the lock base 14 are aligned, the hydraulic cylinder 71 drives the insertion member 723 out from the lock hole 23 and engages with the lock base 14, thereby fixing the operating position of the fin plate 2.

[0030] Furthermore, a protruding rib plate 24 is fixed to the outer wall of the fin plate 2, and the protruding rib plate 24 is provided at a distance from the bottom wall of the fin plate 2. The fin plate 2 can move downward until the protruding rib plate 24 contacts the bottom wall of the trunk 1, thereby restricting further movement of the fin plate 2. In the event of a malfunction of the fin plate lifting pulley system 5, the protruding rib plate 24 prevents the fin plate 2 from detaching from the trunk 1.

[0031] The fin plate 2 of this invention has three operating modes. These are: a navigation operation mode in which the fin plate 2 is lowered so that the bottom of the fin plate 2 is positioned below the hull baseline; a repair mode in which the fin plate 2 is raised to the top of the trunk 1, a temporary plate 4 is attached, and repairs are carried out using the crane 31 and the lifting repair vehicle 33; and a designated position installation mode in which the fin plate 2 is raised to a ready installation position on the main deck, the experimental equipment is connected to the underwater installation equipment pulley system 6, the fin plate lifting pulley system 5 and the fin plate 2 are linked, the fin plate 2 is lowered to the bottom of the ship and locked, the test equipment is then lowered to a predetermined depth using the underwater installation equipment pulley system 6, the rope with a hook 63 of the release device is detached from the test equipment, and the cable is recovered.

[0032] The fin plate 2 is driven by the fin plate lifting pulley system 5, and its movement is guided by the internal guide rail 12 to achieve the raising and lowering of the fin plate 2. When the fin plate 2 reaches the position for navigation work, the position of the fin plate 2 is fixed by the engagement of the internal locking device 7 with the multiple lock bases 14. After the internal locking device 7 and the lock bases 14 are engaged, the fin plate 2 is further pushed to come into contact with the internal pressure receiving rib 13 and the internal guide rail 12, thereby achieving a three-point locking effect and making the fin plate 2 more stable and less prone to swaying.

[0033] This application further provides a control method for a ship's lifting fin system. The control method for the ship's lifting fin system includes a navigation preparation step, a repair preparation step, and a designated position installation preparation step.

[0034] The preparation steps for installation at the designated location are: Step 1 involves activating the fin plate lifting pulley system 5 to raise the fin plate 2 above the height of the main deck of the hull, then removing the removable mounting plate attached inside the fin plate 2 to form a moonpool, and then lowering the fin plate 2 vertically along the internal guide rail 12 using the fin plate lifting pulley system 5. Step 2 involves positioning the fin plate 2 by bringing the protruding rib plate 24 on the surface of the fin plate 2 into contact with the bottom of the trunk 1, checking whether it has reached the operating position, and stopping the operation of the fin plate lifting pulley system 5 if it has reached the operating position. Step 3 involves operating the hydraulic cylinder 71 to cause the cylindrical head portion of the link slider mechanism 72 to protrude from the fin plate 2 into the lock base 14 and make contact, thereby locking it, while the internal pressure-receiving rib 13 and internal guide rail 12 assist in the locking to achieve a three-point locking effect. The procedure includes step 4, which involves connecting the instruments necessary for underwater exploration to the hooked rope 63 of the underwater installation and release device.

[0035] Furthermore, once step 4 is completed, the underwater equipment pulley system 6 is activated, and the hooked rope 63 of the release device and the exploration equipment are lowered directly into the sea through the T-shaped hole 22 of the fin plate 2. When the predetermined position and depth are reached, the hooked rope 63 of the release device is released to detach the instrument, and the hooked rope 63 of the release device is retrieved, completing the installation of the underwater exploration equipment, and the fin plate 2 system becomes the moonpool system.

[0036] The repair preparation steps are: Step 1 involves activating the fin plate lifting pulley system 5 to raise the fin plate 2 to near the top of the trunk 1, Step 2 includes installing a temporary plate 4 and laying a movable rail that extends above the temporary plate 4 so that the fin plate 2 can be repaired using a crane 31 and a lifting repair vehicle 33.

[0037] The navigation preparation steps are: Step 1 involves storing the release device's hooked rope 63, attaching the mounting plate, and using the mounting plate to close and seal all the T-shaped holes 22 in the fin plate 2, Step 2 involves activating the fin plate lifting pulley system 5 to lower the fin plate 2 until the bottom area of ​​the fin plate 2 is in seawater, Step 3 involves operating the hydraulic cylinder 71 to cause the link slider mechanism 72 to protrude from the fin plate 2 and contact the lock base 14, thereby fixing the position of the fin plate 2. Step 4 includes, if the lifting fin plate 2 is not operational, operating the fin plate lifting pulley system 5 to raise the fin plate 2 until its bottom is flush with the ship's bottom plate, thereby reducing resistance during the ship's navigation.

[0038] The foregoing describes only preferred embodiments of the present application and is not intended to limit it. Any modifications, substitutions with equivalents, or improvements made within the scope of the essence and principles of the present application should all be included within the scope of protection. [Explanation of symbols]

[0039] 1 Trunk 11 Housing 12 Internal guide rails 13 Internal pressure-receiving ribs 14 Rock Bass 2 fin plates 21 Reinforcement rib plate 22 T-shaped hole 23 lock holes 24 Protruding rib plate 3 Repair space 31 Cranes 32 Moving Rails 33 Vehicles under repair 4 Temporary board 5-Fin Plate Lifting Pulley System 51 Pulley motor 52 Pulley Set 6. Underwater installation equipment pulley system 61 Exploration equipment pulley motor 62 fixed pools 63 Rope with hook for release device 7. Internal locking device 71 Hydraulic cylinder 72 Link Slider Mechanism 721 Slider 722 links 723 Insertion Member

Claims

1. It includes a trunk (1) and a fin plate (2) provided inside the trunk (1), The height of the trunk (1) is greater than the height of the fin plate (2), A fin plate lifting pulley system (5), used to drive the fin plate (2) to move up and down along the trunk (1), is fixed to the top plate of the trunk (1). A lock base (14) is fixed to the inner wall of the trunk (1) in a region near the bottom. An internal locking device (7) is provided within the fin plate (2) for engaging with the lock base (14). A shipboard lifting fin system characterized by the following features.

2. The fin plate (2) has a plurality of T-shaped holes (22) formed coaxially along the height direction. Each of the T-shaped holes (22) is provided with a removable mounting plate used to seal the T-shaped hole (22). The ship lifting fin system according to claim 1.

3. A repair space (3) is further formed in the intermediate height region of the trunk (1). The repair space (3) is in communication with the trunk (1), and a crane (31) and a repair vehicle (33) are located inside. The ship lifting fin system according to claim 2, characterized in that it is as described above.

4. An internal guide rail (12) and an internal pressure-receiving rib (13), which are used to guide the movement trajectory of the fin plate (2), are fixed to the inner wall of the trunk (1). The side wall of the fin plate (2) is in close contact with both the internal guide rail (12) and the internal pressure-receiving rib (13). The ship lifting fin system according to claim 3.

5. The internal locking device (7) includes a hydraulic cylinder (71) and a link slider mechanism (72) connected to the hydraulic cylinder (71), The link slider mechanism (72) includes an insertion member (723) and a link (722), The insertion member (723) protrudes from the side wall of the trunk (1) and can be inserted into the lock base (14). The link (722) is rotatably connected to the insertion member (723), and as the hydraulic cylinder (71) moves up and down, it is possible to drive the insertion member (723) to protrude from the side wall of the trunk (1) or to store it inside the trunk (1). The ship lifting fin system according to feature 4.

6. A protruding rib plate (24) is fixed to the outer wall of the fin plate (2). The protruding rib plate (24) is provided at a distance from the bottom wall of the fin plate (2), The fin plate (2) is movable downward until the protruding rib plate (24) contacts the bottom wall of the trunk (1). The ship lifting fin system according to claim 5.

7. A control method for a ship's lifting fin system according to claim 6, When performing navigation operations, the navigation operation preparation step involves lowering the fin plate (2) so that the bottom region of the fin plate (2) is positioned below the hull baseline, When performing repair work, the repair preparation step involves raising the fin plate (2) to near the top of the trunk (1) so that the fin plate (2) can be repaired through the repair space (3), When performing the designated position installation work, the preparation step for the designated position installation work involves removing all the mounting plates so that the test equipment can be lowered into the sea via the fin plate (2), and lowering the fin plate (2) until the internal locking device (7) and the locking base (14) are locked, A control method for a ship's lifting fin system, characterized by including the following:

8. The aforementioned navigation preparation step is: Step S1 involves attaching the mounting plate to close all the T-shaped holes (22), Step S2 involves activating the fin plate lifting pulley system (5) to lower the fin plate (2) until the bottom region of the fin plate (2) is in seawater, Step S3 includes driving the internal locking device (7) to lock with the locking base (14), A control method for a ship's lifting fin system according to feature 7.

9. The aforementioned repair work preparation step is: Step S1 involves activating the fin plate lifting pulley system (5) to raise the fin plate (2) to near the top of the trunk (1), Step S2 includes attaching a temporary plate (4) so ​​that the fin plate (2) can be repaired using the crane (31) and the repair vehicle (33), A control method for a ship's lifting fin system according to feature 7.

10. The aforementioned preparation step for installation work at the designated location is: Step S1 involves activating the fin plate lifting pulley system (5) to raise the fin plate (2) above the height of the main deck of the hull, then removing the mounting plate attached inside the fin plate (2) to form a moonpool, and using the fin plate lifting pulley system (5) to lower the fin plate (2) vertically along the internal guide rail (12), Step S2 involves lowering the fin plate (2) until the protruding rib plate (24) contacts the bottom wall of the trunk (1), Step S3 involves driving the internal locking device (7) so that it locks with the lock base (14), Step S4 includes connecting the instruments necessary for underwater exploration to the hooked rope (63) of the underwater installation and release device, A control method for a ship's lifting fin system according to feature 7.

Images