Automatic instrument cabin module replacing device and method for ship lifting fin system

Abstract

The invention provides an instrument cabin module automatic replacement device and method for a ship lifting fin system, the device comprises a fin, the fin is connected with an instrument cabin module through an electric permanent magnetic chuck, and a positioning sensor is installed in the middle of the bottom of the fin; a displacement sensor is installed on the surface of the working disc, a working position and four storage positions are arranged, and clamping jaws and push rod mechanisms are arranged at the four storage positions respectively and used for storing, replacing and moving the instrument cabin module; a plurality of lifting devices are arranged at the bottom of the working disc and used for controlling lifting of the working disc. The instrument cabin is regarded as a module, when fin equipment needs to be maintained or replaced, the whole instrument cabin module can be automatically replaced, the time required for recovering fin work is short, the working efficiency is high, and the maintenance effect is good; the number of standby instrument cabin modules in the working disc can be at most three, all the standby instrument cabin modules are checked and experimented, safety is guaranteed, the error-tolerant rate is high, and guarantee is provided for normal operation of equipment.

Description

Technical Field

[0001] This invention relates to the field of fin instrument compartment replacement technology, and more specifically to an automatic replacement device and method for instrument compartment modules of ship lifting fin systems. Background Technology

[0002] However, as oceanographic research vessels age, their equipment performance becomes outdated, increasing the failure rate of instruments and equipment. When malfunctions occur, the vessels must return to dry dock for repair or replacement. Therefore, to improve work efficiency without excessively affecting the normal use of the fins, it is necessary to invent an automatic instrument compartment module replacement device and method for the ship's lifting fin system. This device should be able to automatically replace the entire instrument compartment as needed using a worktable, completing the replacement and disassembly of the instrument compartment with high quality and efficiency.

[0003] With the continuous development of science and technology, most of my country's research vessels now equipped with lifting fins. The lifting fin system has become one of the core pieces of equipment on oceanographic research vessels, functioning to carry various instruments and equipment for hydrological detection, marine mapping, and water quality analysis. By raising and lowering the fins, these instruments and equipment can perform detection operations at different water depths. The instrument compartment module, as the core component of the lifting fin system, integrates various detection instruments, data acquisition modules, power supply units, etc. Operating in the marine environment for extended periods, it faces challenges such as salt spray corrosion, water pressure impact, and equipment aging, making it prone to malfunctions.

[0004] Traditional methods for repairing and replacing instrument compartment modules are difficult to operate and inefficient.

[0005] When an instrument compartment module malfunctions, the research vessel must cease operations and return to the nearest dock for disassembly, repair, or replacement. The round trip to the dock usually takes several days or even weeks, severely impacting the progress of marine research. This is especially true for vessels operating in the open sea, where the cost of returning to the dock is extremely high. The connection between the instrument compartment module and the fin is usually achieved by bolt fixing. Disassembly and installation require manual operation in the confined space of the ship's cabin, which is labor-intensive and affected by the ship's turbulence. The operation accuracy is difficult to guarantee, which can easily cause damage to the instrument compartment module or fin. The lifting fin system of oceanographic research vessels is usually installed on the outside or bottom of the cabin. When manually replacing the instrument cabin module, it must be done while the ship is stationary, and it is subject to the uncertainty of the marine environment, which poses certain safety risks. Summary of the Invention

[0006] The main objective of this invention is to provide an automatic replacement device and method for the instrument compartment module of a ship's lifting fin system, which solves the problems of high operational difficulty and low replacement efficiency when replacing the instrument compartment module of the fin in the existing method.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An automatic replacement device for an instrument compartment module of a ship's lifting fin system includes a fin, characterized in that the fin is connected to the instrument compartment module via an electro-permanent magnet chuck, and a positioning sensor is installed in the middle of the bottom of the fin. It also includes a working plate, on which displacement sensors are installed, and one working position and four storage positions are set. The four storage positions are respectively equipped with grippers and push rod mechanisms for storing, replacing and moving the instrument compartment module. The bottom of the work tray is equipped with several lifting devices to control the raising and lowering of the work tray.

[0008] In the preferred embodiment, a positioning sensor is installed at the bottom of the fin to align the instrument compartment module on the working plate with the fin. An electro-permanent magnet chuck is installed at the bottom of the fin, which is magnetized and demagnetized by power supply, and is used to control the connection and separation of the fin from the instrument compartment module.

[0009] In the preferred embodiment, the work tray is elliptical, the working position is located at the center of the work tray, and four storage positions are arranged around the work tray; The gripper is located at the long axis of the working plate and is used to connect the end of the instrument compartment module; the push rod mechanism is located at the short axis of the working plate and is used to connect the side of the instrument compartment module. The edge of the work tray is surrounded by a railing.

[0010] In a preferred embodiment, the lifting mechanism includes a movable vehicle body, which is used to move the working plate. The mobile vehicle is equipped with a lift on top, and a top plate is installed on top of the lift, which is connected to the work platform.

[0011] In the preferred embodiment, the grippers are used for moving the instrument compartment module along its long axis. The grippers are connected to the worktable via a connecting seat; The connecting base includes a support block that connects to the work plate, and the support block is provided with a fixing box; The fixed box has a telescopic rod on the side near the center of the work plate, and the telescopic end of the telescopic rod is connected to the gripper.

[0012] In the preferred embodiment, the push rod mechanism is used for movement of the instrument compartment module in the short axis direction; The push rod mechanism includes a fixed base connected to the working plate, and the fixed base is provided with a push rod; The telescopic end of the push rod is equipped with a magnet for attaching to the side of the instrument compartment module.

[0013] In the preferred embodiment, at least one of the four storage locations is empty and used to place the replaced instrument compartment module, while the other storage locations are used to store the assembled spare instrument compartment modules.

[0014] In the preferred embodiment, the instrument compartment module has several connection slots on its side; The connecting slots are located in the middle and at both ends of the instrument compartment module. The connecting slot in the middle is used for connecting the push rod mechanism, and the connecting slots at both ends are used for gripper clamping.

[0015] A method for using an automatic replacement device for an instrument compartment module of a ship's lifting fin system, wherein when the fin instruments need repair or replacement, the entire instrument compartment module is replaced, including the following steps: S1. Alignment with the working position on the work plate is completed by the sensor at the bottom of the fin plate; S2. Start the lifting device supporting the working plate. Detect the displacement of the working plate surface using the displacement sensor, and then push the working plate close to the bottom of the instrument compartment module before stopping. S3. Start the power supply of the electro-permanent magnet chuck to complete the demagnetization process, and complete the separation of the fin plate from the old instrument compartment module. The old instrument compartment falls into the working position. S4. Start the lifting device, the working plate moves down, and the instrument compartment module is moved to the reserved storage position using the gripper or push rod mechanism; S5. Move the spare instrument compartment module to the working position using a gripper or push rod mechanism, and use the sensor at the bottom of the fin plate to detect that the working position of the instrument compartment is aligned with the fin plate. S6. Start the lifting device and push the working plate to the top of the instrument compartment module, close to the bottom of the fin plate; S7. Start the power supply to control the electro-permanent magnet chuck, complete the magnetization process, and realize the connection between the fin plate and the instrument compartment module; S8. Start the lifting device, the working plate descends, and the fins resume normal operation.

[0016] In the preferred embodiment, when the finned instrument needs repair or replacement, the work plate is moved along the floor to below the finned instrument via a lifting device; After replacement, the work plate is moved away from the fins by the lifting device, and then inspection and maintenance are carried out.

[0017] This invention provides an automatic replacement device and method for instrument compartment modules in a ship's lifting fin system. By adopting the above solution, the following beneficial effects are achieved: By treating the instrument compartment as a module, when the fin plate equipment needs repair or replacement, the entire instrument compartment module can be automatically replaced, resulting in short time to restore fin plate operation, high work efficiency, and good repair results.

[0018] The work panel can hold up to three spare instrument modules, all of which have been inspected and tested to ensure safety and high fault tolerance, thus guaranteeing the normal operation of the equipment.

[0019] The fin plate is connected to the instrument compartment module using an electro-permanent magnet chuck. Power is only required during magnetization and demagnetization; no power is needed for other connection times. This saves energy and avoids safety hazards caused by power outages. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the lifting device of the present invention; Figure 5 This is a front view of the present invention; Figure 6 This is a schematic diagram of the gripper structure of the present invention; Figure 7 This is a cross-sectional view of the fin plate of the present invention; Figure 8 This is a schematic diagram of the push rod mechanism of the present invention.

[0021] In the diagram: Floor 1, Lifting device 2, Mobile vehicle 201, Lift 202, Top plate 203, Working plate 3, Fence 301, Connecting seat 4, Support block 401, Fixed box 402, Telescopic rod 403, Gripper 5, Instrument compartment module 6, Fin plate 7, Electro-permanent magnet chuck 701, Push rod mechanism 8, Fixed seat 801, Push rod 802, Magnet 803. Detailed Implementation

[0022] Example 1: like Figure 1 , 2 As shown in Figures 3, 4, 5, 6, 7, and 8, an automatic instrument compartment module replacement device for a ship's lifting fin system includes a lifting device 2, a working plate 3, a connecting seat 4, a gripper 5, an instrument compartment module 6, a fin 7, and a push rod mechanism 8, which can realize the automatic storage, switching, centering, connection, and separation of the instrument compartment module.

[0023] It should be noted that the device is installed on the bottom plate 1 inside the hull where the fin is located. After the fin is retracted into its hull, it will be located above the device of this application. When replacement is required, the device of this application can be moved to the bottom of the fin for processing, and the replacement operation can be carried out without returning to the dock or going there manually. After the fin is retracted into its hull, the sealing between its hull and the outside world is carried out using existing technology, such as multi-layer sealing plates or existing marine drainage systems. The equipment and structure used in the device of this application are all waterproof structures.

[0024] The lifting device 2 is installed on the floor 1, and the working plate 3 is horizontally set on the top of the lifting device 2. The lifting device 2 controls the lifting of the working plate 3. The working plate 3 is provided with a working position and a storage position for installing the instrument compartment module 6. The gripper 5 and the push rod mechanism 8 are installed at the storage position for moving and fixing the instrument compartment module 6.

[0025] The fin plate 7 is connected to the instrument compartment module 6 at the working position via an electro-permanent magnet chuck 701, which facilitates subsequent replacement.

[0026] Floor 1 is a fixed load-bearing structure inside the cabin, used to install the lifting device 2 and to provide a stable support foundation for the entire device.

[0027] The lifting device 2 is used to control the lifting and horizontal movement of the working plate 3. It includes a mobile body 201, a lifting platform 202, and a top plate 203. The mobile body 201 is a steel frame structure with wheels at the bottom. It is driven by a motor to move the working plate 3. The bottom of the mobile body 201 is equipped with a braking device to ensure that the position is fixed and there is no displacement during operation.

[0028] The top of the mobile vehicle body 201 is equipped with a lift 202, preferably a hydraulic lift, which is used to control the lifting and lowering of the working plate 3; the synchronization accuracy of the lift 202 is ≤0.2mm to ensure that the working plate 3 remains horizontal during the lifting and lowering process.

[0029] The top of the lifting platform 202 is provided with a top plate 203, which is preferably a rectangular steel plate. The top plate 203 is fixedly connected to the working plate 3 by bolts to transmit the lifting force of the lifting platform 202 and ensure that the working plate 3 is subjected to uniform force.

[0030] The working tray 3 is an oval-shaped platform for storing and switching the instrument compartment module 6. It is preferably made of Q235 steel and the surface is treated with anti-rust. It includes the working position, the storage position, the fence 301, and the displacement sensor.

[0031] The working position is located at the center of the working disk 3, which is the operating area when the fin plate 7 is connected or separated from the instrument compartment module 6; four storage positions are arranged around the working position, located at both ends of the long axis and both sides of the short axis of the elliptical working disk 3 respectively. The size of each storage position is the same as that of the working position, and it is used to store spare instrument compartment modules 6 or old modules that have been replaced; at least one empty space is reserved in the four storage positions to ensure that there is temporary storage space after the old modules are replaced.

[0032] Enclosure 301: The edge of the working plate 3 is provided with enclosure 301, which is 100-150mm high and 5-8mm thick, and is made of stainless steel. It is used to prevent the instrument compartment module 6 from slipping off the working plate 3 when moving or when the ship is rocking, thereby improving the safety of the device.

[0033] The surface of the working plate 3 is equipped with four displacement sensors, preferably laser displacement sensors, which are installed at the four corners of the working position to detect the distance between the working plate 3 and the bottom of the instrument compartment module 6, ensuring that the working plate 3 is precisely aligned with the instrument compartment module 6 during the lifting and lowering process.

[0034] The grippers 5 are used to move and fix the instrument compartment module 6 along the long axis of the working disk 3. They are installed at the two ends of the long axis of the working disk 3 via the connecting seat 4. There are two grippers 5 in total, arranged symmetrically.

[0035] The connecting seat 4 includes a support block 401, a fixed box 402, and a telescopic rod 403. The support block 401 is fixedly connected to the working plate 3 by bolts. The fixed box 402 is installed on the top of the support block 401 and has a motor and transmission mechanism inside. The telescopic rod 403 is located on the side of the fixed box 402 near the center of the working plate 3 and is driven to extend and retract by the motor to move the gripper 5.

[0036] The telescopic pole 403 can also be directly replaced with an existing electric telescopic pole with telescopic length control capability.

[0037] The gripper 5 is preferably an existing electric gripper with a rubber pad on its surface. It is adapted to the connecting groove at the end of the instrument compartment module 6 and is used to clamp both ends of the instrument compartment module 6. The clamping force of the gripper 5 is adjustable to avoid excessive clamping force from damaging the instrument compartment module 6, while ensuring a firm clamping without loosening.

[0038] The push rod mechanism 8 is used for the movement and fixation of the instrument compartment module 6 in the short axis direction of the working disk 3. It is installed at the storage positions on both sides of the short axis of the working disk 3. There are two push rod mechanisms 8 in total, arranged symmetrically.

[0039] Specifically, the push rod mechanism 8 includes a fixed seat 801, which is fixedly connected to the working plate 3 by bolts; a push rod 802 is provided on the side of the fixed seat 801 near the center of the working plate 3, and the push rod 802 is preferably an electric push rod, which is used to push the instrument compartment module 6 to move along the short axis direction.

[0040] The telescopic end of the push rod 802 is equipped with a magnet 803, preferably an electromagnet, to attract the connecting groove on the side of the instrument compartment module 6, thereby improving the stability of the push rod 802 when it is pushed or pulled and preventing the instrument compartment module 6 from shifting.

[0041] The instrument compartment module 6 is an integrated structure with a stainless steel outer shell. It integrates detection instruments, data acquisition modules, power supply units, etc. The side of the instrument compartment module 6 is provided with several connection slots. The connection slot in the middle is used to engage with the magnet 803 of the push rod mechanism 8, and the connection slots at both ends are used to engage with the gripper 5. The top of the instrument compartment module 6 is provided with a metal adsorption surface that is compatible with the electro-permanent magnet chuck 701 to ensure a firm connection after magnetization.

[0042] Fin 7 is the main structure of the ship's lifting fin system. A positioning sensor, preferably a laser positioning sensor, is installed at the bottom center to ensure precise alignment between the instrument compartment module 6 on the working plate 3 and the fin 7. An electro-permanent magnet chuck 701 is installed at the bottom of the fin 7. It is magnetized and demagnetized by the ship's power supply. When magnetized, it is firmly connected to the metal adsorption surface of the instrument compartment module 6. When demagnetized, it is separated from the instrument compartment module 6, enabling quick assembly and disassembly.

[0043] Example 2: The method for using the automatic replacement device for the instrument compartment module of the ship's lifting fin system is as follows: This method completes the replacement of the instrument compartment module through an automatic process of "centering-separation-shifting-switching-centering-connection" without manual intervention, thus achieving higher replacement efficiency. Daily preparations are as follows: Two to three spare instrument compartment modules 6 are placed in the three storage positions of the work tray 3 in advance and fixed by the gripper 5 or the push rod mechanism 8. One to two storage positions are reserved as temporary storage space for the old modules. Ensure that components such as lifting device 2, gripper 5, push rod mechanism 8, electro-permanent magnet chuck 701, and sensors operate normally and that the power supply is stable. When the instrument compartment module 6 on the fin 7 malfunctions and needs to be replaced, the ship's lifting fin system will retract the fin 7 into its compartment, at which point the fin 7 will be located above the device.

[0044] The replacement steps are as follows: S1. Device movement and centering: Control the moving body 201 of the lifting device 2 to move along the floor 1 to directly below the fin plate 7, and fix the moving body 201 by the braking device. The positioning sensor at the bottom of the fin plate 7 is activated to detect the reference point of the center working position of the working plate 3. The height and horizontal position of the working plate 3 are finely adjusted by the moving body 201 and the lifting platform 202 of the lifting device 2 to complete the initial alignment of the working positions of the fin plate 7 and the working plate 3.

[0045] S2: Working plate rises and fits: Start the lifting device 2, the lifting machine 202, and drive the working plate 3 to rise slowly. The distance between the working plate 3 and the bottom of the instrument compartment module 6 is detected in real time by the displacement sensor on the surface of the working plate 3. When the working plate 3 rises to be in contact with the bottom of the old instrument compartment module 6 (the displacement sensor detection distance is ≤1mm), the elevator 202 stops rising.

[0046] S3: Separation and storage of old module: Start the power supply of the electro-permanent magnet chuck 701 to complete the demagnetization work. The fin plate 7 separates from the old instrument compartment module 6, and the old module falls into the working position of the working plate 3. Start the empty gripper 5 or push rod mechanism 8: The gripper 5 is controlled by the telescopic rod 403 to approach the old module, and then the end of the old module is clamped by the gripper 5. Then the telescopic rod 403 retracts to move the old module along the long axis to the reserved storage position. Then the gripper 5 is released to complete the storage of the old module. Alternatively, the push rod 802 of the push rod mechanism 8 can be activated to drive the magnet 803 to approach and attract the side of the old module. Then, the push rod 802 retracts to move the old module along the short axis to the reserved storage position. Then, the push rod mechanism 8 is released to complete the storage of the old module.

[0047] S4: Backup module switches to working position: Select one of the storage locations for the spare instrument compartment module 6, and activate the gripper 5 or push rod mechanism 8 at that location: the gripper 5 clamps the end of the spare module, and then the telescopic rod 403 extends to send the spare instrument compartment module 6 to the working position to wait for installation; finally, release the gripper and the telescopic rod 403 returns to its original position. Alternatively, the magnet 803 of the push rod mechanism 8 can be used to attach the side of the spare module, and the push rod 802 can be used to send the spare instrument compartment module 6 to the working position to wait for installation; finally, the attachment is released and the push rod 802 is reset.

[0048] S5: Alignment of the backup module with the fin: Activate the positioning sensor at the bottom of the fin 7 to detect the position of the metal adsorption surface of the backup module in the working position. Fine-tune the height and horizontal position of the working plate 3 through the lifting device 2, the lifting machine 202 and the moving vehicle 201 to ensure that the backup module is precisely aligned with the electro-permanent magnet chuck 701 of the fin 7.

[0049] S6: Connection between the spare module and the fin: Start the elevator 202 of the lifting device 2, which drives the working plate 3 to rise slowly, so that the top metal adsorption surface of the spare module is in contact with the electro-permanent magnet chuck 701 at the bottom of the fin 7. Turn on the power to the electro-permanent magnet chuck 701 to complete the magnetization process, and the spare module is firmly connected to the fin plate 7.

[0050] S7: Working plate reset and fin plate resume operation: Start the lifting device 2, and drive the working plate 3 to slowly descend to the initial position; The moving vehicle 201 of the control lifting device 2 moves along the floor 1 away from the fin 7 to avoid affecting the lifting operation of the fin 7; The ship's fin-raising and lowering system lowers fin 7 to the designated water depth, resuming normal detection operations.

[0051] S8: Repair and handling of old modules: During the break between ship operations or after returning to port, the old instrument compartment module 6 stored on the work tray 3 is hoisted to the maintenance area for inspection and repair. After the repair is completed, it can be placed back in the storage position of the work tray 3 as a spare module for repeated use.

[0052] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An automatic replacement device for the instrument compartment module of a ship's lifting fin system, comprising a fin (7), characterized in that, The fin plate (7) is connected to the instrument compartment module (6) via an electro-permanent magnet chuck (701), and a positioning sensor is installed in the middle of the bottom of the fin plate; It also includes a working plate (3), on which displacement sensors are installed, and one working position and four storage positions are set. The four storage positions are respectively equipped with grippers (5) and push rod mechanisms (8) for storing, replacing and moving instrument compartment modules (6). The bottom of the working plate (3) is equipped with several lifting devices (2) to control the raising and lowering of the working plate (3).

2. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 1, characterized in that: A positioning sensor is installed at the bottom of the fin (7) to align the instrument compartment module (6) on the working plate (3) with the fin (7); An electro-permanent magnet chuck (701) is installed at the bottom of the fin plate (7), which is magnetized and demagnetized by power supply, and is used to control the connection and separation of the fin plate (7) and the instrument compartment module (6).

3. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 1, characterized in that: The work plate (3) is oval in shape, the working position is located in the center of the work plate (3), and the four storage positions are arranged around the work plate (3); The gripper (5) is located at the long axis of the working plate (3) and is used to connect the end of the instrument compartment module (6); the push rod mechanism (8) is located at the short axis of the working plate (3) and is used to connect the side of the instrument compartment module (6). The edge of the work plate (3) is provided with a railing (301).

4. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 3, characterized in that: The lifting mechanism (2) includes a moving body (201), which is used to drive the working plate (3) to move; The mobile vehicle body (201) is equipped with a lift (202) on top, and the lift (202) is equipped with a top plate (203) on top, which is connected to the work plate (3).

5. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 1, characterized in that: The gripper (5) is used for the movement of the instrument compartment module (6) in the long axis direction; The gripper (5) is connected to the work plate (3) via the connecting seat (4); The connecting seat (4) includes a support block (401) connected to the working plate (3), and the support block (401) is provided with a fixing box (402). The fixed box (402) is provided with a telescopic rod (403) on the side near the center of the working plate (3), and the telescopic end of the telescopic rod (403) is connected to the gripper (5).

6. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 1, characterized in that: The push rod mechanism (8) is used for the movement of the instrument compartment module (6) in the short axis direction; The push rod mechanism (8) includes a fixed seat (801) connected to the working plate (3), and the fixed seat (801) is provided with a push rod (802); The telescopic end of the push rod (802) is equipped with a magnet (803) for adsorbing the side of the instrument compartment module (6).

7. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 1, characterized in that: Of the four storage locations, at least one is empty for placing the replaced instrument compartment module (6), while the other storage locations are used to store the assembled spare instrument compartment modules (6).

8. The automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 1, characterized in that: The instrument compartment module (6) has several connection slots on its side; The connecting slots are located in the middle and at both ends of the instrument compartment module (6). The connecting slot in the middle is used for connecting the push rod mechanism (8), and the connecting slots at both ends are used for clamping by the grippers (5).

9. A method of using the automatic instrument compartment module replacement device for a ship's lifting fin system as described in any one of claims 1-8, characterized in that: When the fin plate (7) instrument needs repair or replacement, the entire instrument compartment module (6) shall be replaced, including the following steps: S1. Alignment with the working position on the working plate (3) is completed by the sensor at the bottom of the fin plate; S2. Start the lifting device (2) supporting the working plate. Detect the displacement sensor on the surface of the working plate (3) and push the working plate (3) to the bottom of the instrument compartment module (6) and then stop. S3. Start the power supply of the electro-permanent magnet chuck (701) to complete the demagnetization work, and complete the separation of the fin plate (7) from the old instrument compartment module (6). The old instrument compartment falls into the working position. S4. Start the lifting device (2), the working plate (3) moves down, and the instrument compartment module (6) is moved to the reserved storage position (6) by using the gripper (5) or push rod mechanism (8). S5. Move the spare instrument compartment module (6) to the working position through the gripper (5) or push rod mechanism (8), and use the sensor at the bottom of the fin plate (7) to detect that the working position of the instrument compartment is aligned with the fin plate (7); S6. Start the lifting device (2) and push the working plate (3) to the top of the instrument compartment module (6) close to the bottom of the fin plate (7); S7. Start the power supply of the control electro-permanent magnet chuck (701) to complete the magnetization work and realize the connection between the fin plate (7) and the instrument compartment module (6); S8. Start the lifting device (2), the working plate (3) descends, and the fin plate (7) resumes normal operation.

10. A method of using an automatic instrument compartment module replacement device for a ship's lifting fin system according to claim 9, characterized in that, When the fin plate (7) instrument needs to be repaired or replaced, the work plate (3) is moved along the floor (1) to below the fin plate (7) by the lifting device (2); After the replacement is completed, the work plate (3) is moved away from the fin plate (7) by the lifting device (2) and then inspection and maintenance are carried out.

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