Vertical lifting ship floating condition adjusting device and working method thereof

Abstract

The invention relates to the technical field of marine equipment, in particular to a vertical lifting ship floating condition adjusting device and a working method thereof. The servo motor is used for controlling the blades of the interceptor to move up and down, in cooperation with transmission of a slider-crank mechanism and positioning of a gear and a rack, the positions of the blades can be adjusted in a high-precision mode, control over the posture of a ship body under various working conditions is achieved, and meanwhile light weight of the device is fully considered in the material type selection and structure design process; and the influence of the device on the overall structural design of the ship can be effectively reduced. The blade extension amount can be automatically adjusted according to the sailing state and sailing parameters of the ship body, then the resistance in the ship body acceleration process is remarkably reduced, the ship acceleration efficiency is improved, meanwhile, the sailing posture of the ship body can be adjusted, the sailing stability is improved, fuel consumption is reduced, and the application prospect is wide.

Description

Technical Field

[0001] The invention relates to the technical field of marine equipment, and in particular to a vertically lifting ship buoyancy adjustment device and a working method thereof. Background Art

[0002] A water flow interceptor is an underwater device installed at the stern of a ship. It is mainly used to adjust the water flow at the stern of the hull, intervene in the local water pressure of the bottom plate of the ship, and thus adjust the navigation posture of the hull. This technology is widely used in various types of ships, especially ships that need to sail at high speeds or have special navigation requirements. Traditional ships mostly use fixed interceptors, which help the hull to slide quickly at low speeds, but because the extension of the blades cannot be adjusted, it will cause resistance to the hull at high speeds, which is not conducive to the fuel efficiency and power of high-speed ships. In recent years, with the application of hydraulic technology to interceptors, the existing technology uses a hydraulic system to adjust the position of the blades to adapt to different working conditions, but the hydraulic adjustment device of the existing technology has a complex structure and a large weight, which is not conducive to the navigation stability of high-speed ships. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in view of the shortcomings of the prior art, a vertical lifting ship buoyancy adjustment device and a working method thereof are provided, which can automatically adjust the blade extension amount according to the navigation state and navigation parameters of the hull, thereby significantly reducing the resistance of the hull during acceleration and improving the acceleration efficiency of the ship. At the same time, the navigation posture of the hull can be adjusted, the navigation stability can be improved, and fuel consumption can be reduced.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] 1. A vertical lifting ship buoyancy adjustment device

[0006] The present invention provides a vertical lifting ship buoyancy adjustment device, wherein one or more buoyancy adjustment devices are installed on the left and right sides of the stern of the ship, and mainly include: a sleeve 2 arranged on the inner side of the stern sealing plate 28, a driving motor 3, and a back plate 1, a blade 5, and a cover plate 8 arranged on the outer side of the stern sealing plate 28;

[0007] One end of the sleeve 2 is fixedly connected to the inner side of the stern sealing plate 28, and the other end is connected to the driving motor 3. The output shaft 12 of the driving motor 3 passes through the stern sealing plate 28 and is connected to the blade 5 through a crank slider mechanism.

[0008] The back plate 1 is fixedly mounted on the outside of the stern sealing plate 28, and the outer side of the back plate 1 is connected to the cover plate 8 through a plurality of columns 16. A partition plate 9 is provided between the cover plate 8 and the back plate 1, and the blade 5 is slidably arranged in the inner cavity of the partition plate 9 through a gear rack mechanism;

[0009] The driving motor 3 is used to drive the blades 5 to slide up and down in the inner cavity of the partition 9 to adjust the extension amount of the blades 5 in each buoyancy adjustment device, thereby adjusting the navigation posture of the hull.

[0010] Furthermore, the crank slider mechanism includes a connected A crank 14 and a B crank 15 , a slider 4 is provided between the A crank 14 and the B crank 15 , and the slider 46 is limitedly slidably installed in a slide groove 26 provided on the blade 5 .

[0011] Furthermore, the back plate 1 and the cover plate 8 are respectively provided with a first hole 23 and a second hole 24 , and the rotating shafts of the A crank 14 and the B crank 15 are rotatably installed in the first hole 23 and the second hole 24 .

[0012] Furthermore, a plurality of limiting holes 27 are uniformly opened in the transverse direction on the blade 5 , and a plurality of upright posts 16 on the back plate 1 respectively pass through the corresponding limiting holes 27 and are connected to the cover plate 8 .

[0013] Furthermore, the gear rack mechanism includes a plurality of toothed rollers 6 uniformly arranged laterally on the top of the blade 5 and a plurality of first racks 7 arranged at the bottom of the blade 5; the outer side surface of the back plate 1 is provided with a plurality of tooth grooves 25 corresponding to the toothed rollers 6, and each toothed roller 6 is meshedly connected with the corresponding tooth groove 25.

[0014] Furthermore, the inner side of the cover plate 8 is provided with a plurality of second racks 17 corresponding to the first rack 7, and a plurality of rollers 20 are provided between the first rack 7 and the second rack 17. The plurality of rollers 20 are connected by a connecting rod 19. The connecting rod 19 is provided with a plurality of gears 18. The two sides of the gears 18 are respectively meshed and connected with the corresponding first rack 7 and second rack 17.

[0015] Furthermore, the sleeve 2 is fixedly connected to the inner side of the stern sealing plate 28 by a nut 10, and a sealing ring 11 is provided at the connection between the sleeve 2 and the stern sealing plate 28, and a multi-pass rotary step seal 13 is provided on the output shaft 12;

[0016] A boss 21 is provided at the bottom of the back plate 1 , and a side of the boss 21 facing the stern sealing plate 28 is provided with an avoidance groove 22 .

[0017] 2. Working method of a ship buoyancy adjustment device

[0018] Based on the same inventive concept, the present invention also provides a working method of the above-mentioned ship buoyancy adjustment device, which specifically comprises the following steps:

[0019] M1, based on the ship-borne attitude measurement sensor, ship-borne speed sensor and ship-borne laser displacement sensor, respectively obtains the attitude data information, speed data information of the hull operation and the blade extension data information of the floating state adjustment device in real time;

[0020] M2, based on the attitude data information, speed data information and blade extension amount data information, construct a resistance and stability model of the hull acceleration process, and predict the resistance and stability of the hull acceleration to obtain predicted resistance and stability data information of the hull acceleration;

[0021] M3, based on the predicted hull acceleration resistance and stability data information, using a Lagrange multiplier algorithm based on an adaptive adjustment factor to optimize the hull acceleration resistance and stability data information to obtain optimized hull acceleration resistance and stability data information;

[0022] M4, based on the optimized hull acceleration resistance and stability data information, construct a control function Q of the blade extension amount to control and adjust the blade extension amount, and output the blade extension amount control data information;

[0023] The control function Q of the blade extension amount is specifically as follows:

[0024]

[0025] In the formula, x is the resistance data information of the optimized hull acceleration, y is the stability data information of the optimized hull acceleration, α 1 and α 2 is the optimization control factor of the blade extension, and f is the relationship function between the resistance and stability of the hull acceleration.

[0026] Furthermore, the building of the resistance and stability model of the hull acceleration process and the prediction of the resistance and stability of the hull acceleration specifically include:

[0027] M21, based on the attitude data information, speed data information and blade extension amount data information, construct a resistance function g and a stability function h of the hull acceleration process, and calculate the resistance and stability of the hull acceleration process to obtain the resistance and stability data information of the hull acceleration process;

[0028] M22, based on the resistance and stability data information of the hull acceleration process, construct a resistance and stability data matrix of the hull acceleration process to obtain resistance and stability data matrix data information of the hull acceleration process;

[0029] M23, inputting the resistance and stability data matrix data information of the hull acceleration process into the resistance and stability model of the hull acceleration process for training and learning, and obtaining the trained resistance and stability model of the hull acceleration process according to the model prediction function W;

[0030] M24, based on the trained resistance and stability model of the hull acceleration process, input the resistance and stability data information of the hull acceleration process, predict the resistance and stability of the hull acceleration, and obtain the predicted resistance and stability data information of the hull acceleration.

[0031] Furthermore, the Lagrange multiplier algorithm based on the adaptive adjustment factor is used to optimize the resistance and stability of the hull acceleration, specifically including:

[0032] M31, performing normalization processing based on the predicted hull acceleration resistance and stability data information to obtain normalized hull acceleration resistance and stability data information;

[0033] M32, constructing an optimization function S of hull acceleration based on the normalized resistance and stability data information of hull acceleration;

[0034] M33, based on the optimization function S of the hull acceleration, the resistance and stability of the hull acceleration are optimized to obtain the optimized resistance and stability data information of the hull acceleration.

[0035] Compared with the prior art, the present invention has the following main advantages:

[0036] 1. The present invention controls the up and down movement of the interceptor blades through a servo motor, and cooperates with the crank slider mechanism transmission and gear rack positioning to adjust the blade position with high precision, thereby realizing the control of the hull posture under various working conditions. At the same time, the lightweight of the device is fully considered in the material selection and structural design process, which can effectively reduce the impact of the device on the overall structural design of the ship.

[0037] 2. The present invention can automatically adjust the blade extension amount according to the navigation state and navigation parameters of the hull, thereby significantly reducing the resistance during the acceleration of the hull and improving the acceleration efficiency of the ship. At the same time, it can adjust the navigation posture of the hull, improve navigation stability, and reduce fuel consumption. It has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the ship floating state adjustment device in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of the ship buoyancy adjustment device after removing the cover plate in an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the structure of the ship buoyancy adjustment device in an embodiment of the present invention after removing the cover plate and the blades;

[0041] Figure 4 It is a rear view of the ship floating state adjustment device in the embodiment of the present invention;

[0042] Figure 5 is a rear view of the cover plate in an embodiment of the present invention;

[0043] Figure 6 is a cross-sectional view of the output shaft of the motor in an embodiment of the present invention;

[0044] Figure 7 It is a schematic diagram of the structure when the blades are extended in an embodiment of the present invention;

[0045] Figure 8 Schematic diagram of the working method in the embodiment of the present invention;

[0046] Fig. 9 It is a schematic diagram of a process of constructing a resistance and stability model of a ship acceleration process in an embodiment of the present invention;

[0047] Fig.10 Schematic diagram of the process of the Lagrange multiplier algorithm based on the adaptive adjustment factor in an embodiment of the present invention.

[0048] In the figure: 1-back plate, 2-sleeve, 3-drive motor, 4-slider, 5-blade, 6-toothed roller, 7-first rack, 8-cover plate, 9-partition, 10-nut, 11-sealing ring, 12-motor output shaft, 13-rotating step seal, 14-A crank, 15-B crank, 16-column, 17-second rack, 18-gear, 19-connecting rod, 20-roller, 21-boss, 22-avoidance groove, 23-first hole, 24-second hole, 25-tooth groove, 26-slide groove, 27-limiting hole, 28-stern sealing plate. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0051] Embodiment 1: This embodiment provides a vertical lifting ship buoyancy adjustment device, such as Figures 1 to 7 As shown, it includes a sleeve 2 and a drive motor 3 installed on the inner side of the stern sealing plate 28, the drive motor 3 is connected to the sleeve 2, the outer side of the stern sealing plate 28 is connected to the back plate 1, the back plate 1 is connected to the cover plate 8 through a plurality of columns 16, a partition 9 is provided between the cover plate 8 and the back plate 1, and a blade 5 is provided in the inner cavity of the partition 9, the output shaft 12 of the drive motor 3 is connected to the A crank 14, the A crank 14 is connected to the B crank 15, and the B crank A slider 4 is provided between the handle 15 and the A crank 14, and the slider 4 is slidably connected with a slide groove 26. The slide groove 26 is provided on the blade 5, and a plurality of toothed rollers 6 are provided on the blade 5. A plurality of limiting holes 27 are provided below the toothed roller 6, and a plurality of rollers 20 are provided below the limiting holes 27. The rollers 20 are connected by a connecting rod 19, and a gear 18 is provided at one end of the roller 20, and the gear 18 is meshedly connected with the first rack 7.

[0052] In this embodiment, a second rack 17 is disposed on the inner side of the cover plate 8 , and the second rack 17 is meshedly connected with the gear 18 .

[0053] In this embodiment, the column 16 is disposed on the back plate 1 , and the column 16 passes through the limiting hole 27 and is connected to the cover plate 8 .

[0054] In this embodiment, a tooth groove 25 is provided on the back plate 1 , and the tooth groove 25 is meshedly connected with the toothed roller 6 .

[0055] In this embodiment, the back plate 1 is provided with a first hole 23 , which is rotatably connected to the A crank 14 , and the cover plate 8 is provided with a second hole 24 , which is rotatably connected to the B crank 15 .

[0056] In this embodiment, a sealing ring 11 is provided between the sleeve 2 and the stern sealing plate 28 .

[0057] In this embodiment, at least two rotating step seals 13 are disposed on the motor output shaft 12 .

[0058] In this embodiment, a nut 10 is provided between the sleeve 2 and the stern sealing plate 28 .

[0059] In this embodiment, a boss 21 is disposed at the lower portion of the back plate 1 , and an avoidance groove 22 is disposed at the back of the boss 21 .

[0060] In this embodiment, the blades 5 are integrally injection molded.

[0061] In this embodiment, the blades 5 and the bosses 21 are inclined upward along the stern.

[0062] Embodiment 2: This embodiment provides a vertical lifting ship floating state adjustment device, wherein the rear of the back plate 1 is connected to the locking sleeve 2, the tail of the sleeve 2 is equipped with a driving motor 3, the front of the back plate 1 is connected to a crank slider mechanism, the slider 4 of the crank slider mechanism is installed in the square groove of the blade 5, and the blade 5 is equipped with a plurality of toothed rollers 6 and a first rack 7, the first rack 7 is meshed with a gear 18, and the gear 18 is also meshed with a second rack 17 on the cover plate 8, the cover plate 8 is fixed on the back plate 1 as a whole, and a partition 9 is installed between the cover plate 8 and the back plate 1. The present invention realizes the movement of the blade in the vertical direction by using the driving motor 3 to drive, the crank slider mechanism to drive, and the gear rack mechanism to position and guide. One or more floating state adjustment devices are installed on the left and right sides of the stern, and the extension amount of the blade 5 of each floating state adjustment device is adjusted according to the needs of the hull, so as to adjust the navigation posture of the hull and improve the maneuverability and stability of the ship.

[0063] In this embodiment, the main material of the ship buoyancy adjustment device is polyformaldehyde, which is an industrial plastic with low density, low water absorption, and good corrosion resistance, meeting the requirements of lightweight marine equipment and use in seawater environment.

[0064] In this embodiment, the driving motor 3 and the sleeve 2 are installed on the inner side of the stern sealing plate 28, and the back plate 1, the blades 5 and the cover plate 8 are located on the outer side of the stern sealing plate as the actuator. This design can prevent water from entering the motor and increase the life of the equipment.

[0065] In this embodiment, the outer portion of the sleeve 2 is a large-diameter thread. After a hole is opened on the stern sealing plate 28, the sleeve 2 is inserted into the cabin, and the sleeve is fixed to the stern sealing plate 28 using a double nut 10. A sealing ring 11 is provided on the sleeve 2, and two rotating seals 13 are provided on the output shaft 12 to prevent water from entering the cabin.

[0066] In this embodiment, the output shaft 12 is connected to the A crank 14 through a spline, and the A crank 14 is connected to the B crank 15 through a spline. A slider 4 is installed in the middle of the A crank 14 and the B crank 15, and the slider 4 is installed in the slide groove on the blade 5. The A crank 14 has a circular boss, which cooperates with the circular hole on the back plate 1, and the B crank 15 has a circular boss, which cooperates with the circular hole on the cover plate 8. The positioning of the crank slider mechanism is achieved through these two sets of cooperation, ensuring that the crank mechanism has only one degree of freedom to rotate along its axis. When the drive motor 3 drives the A crank 14 to rotate through the output shaft 12, the slider 4 slides in the slide groove of the blade 5, and at the same time drives the blade 5 to translate in the vertical direction. The extension amount of the blade 5 is controlled by controlling the rotation angle of the drive motor 3.

[0067] In this embodiment, the cover plate 8 is connected to the back plate 1 by bolts on the left, right and upper parts, and a plurality of columns 16 and partitions 9 are arranged between the cover plate 8 and the back plate 1 to control the size of the cavity therebetween. The columns 16 are hollow columns, and threaded holes are arranged on the stern sealing plate 28 at positions corresponding to the columns 16. When installing the equipment, the bolts pass through the cover plate 8, the hollow columns 16 and the back plate 1 in sequence, and the equipment is locked on the stern sealing plate 28 as a whole.

[0068] In this embodiment, a plurality of toothed rollers 6 are installed on the upper part of the blade 5, and the wheel surface of the toothed roller 6 is in contact with the back plate 1, so as to transmit the water flow impact force on the upper part of the blade 5 to the back plate 1. At the same time, tooth grooves are provided on the back plate 1, and the tooth grooves are correspondingly meshed with the teeth on the toothed roller 6. When the blade 5 is impacted by the water flow and needs to move up and down, the roller 6 and the back plate 1 roll relative to each other, so as to avoid sliding friction, reduce the friction coefficient, and ensure that the blade 5 can move up and down normally under the working condition of being impacted by the water flow.

[0069] In this embodiment, at least two groups of first racks 7 are provided on the blade 5, and racks 17 are also provided at corresponding positions on the cover plate 8. At least one group of gear rods is provided between the blade 5 and the cover plate 8. Gears 18 are installed at both ends of the gear rods, and the middle part is connected by a connecting rod 19 to ensure that the two gears 18 on each group of gear rods will not rotate relative to each other. Each gear 18 at both ends of the gear rod is meshed with the first rack 7 on the blade 5 and the second rack 17 on the cover plate 8. Through this design, it is ensured that the blade 5 will not be twisted during the up and down movement. At the same time, a roller 20 is provided on the connecting rod 19 in the middle of the gear rod, and the roller 20 transmits the water flow impact force on the lower part of the blade 5 to the cover plate 8.

[0070] In this embodiment, a boss is provided at the lower part of the back plate 1, and an avoidance groove is provided at the back of the boss. The boss has a certain interference amount with the blade 5. After the blade 5 is installed, the boss will be pressed down in the direction of the avoidance groove to ensure that the boss is in close contact with the blade 5. When the blade 5 moves up and down, the boss plays a role in cleaning the blade 5 to prevent the device from being stuck by foreign objects.

[0071] Embodiment 3, based on the same inventive concept, this embodiment also provides a working method of the above-mentioned ship floating state adjustment device, such as Figures 8 to 10 As shown, the specific steps include:

[0072] M1, the ship is traveling on the sea, and the ship's attitude data information is obtained in real time based on the ship's IMU sensor (attitude measurement sensor), the ship's speed data information is obtained in real time based on the ship's speed sensor, and the blade extension data information is obtained in real time based on the ship's laser displacement sensor;

[0073] M2, based on the speed data information of the hull, the posture data information of the hull running and the data information of the blade extension amount, construct a resistance and stability model of the hull acceleration process, predict the resistance and stability of the hull acceleration, and obtain the predicted resistance and stability data information of the hull acceleration;

[0074] M3, based on the predicted hull acceleration resistance and stability data information, using a Lagrange multiplier algorithm based on an adaptive adjustment factor to optimize the hull acceleration resistance and stability data information to obtain optimized hull acceleration resistance and stability data information;

[0075] M4, based on the optimized hull acceleration resistance and stability data information, construct a control function Q of the blade extension amount, control and adjust the blade extension amount, and output the blade extension amount control data information.

[0076] In this embodiment, the control function Q of the blade extension amount is:

[0077]

[0078] Among them, x is the resistance data information of the optimized hull acceleration, y is the stability data information of the optimized hull acceleration, α 1 and α 2 is the optimization control factor of the blade extension, and f is the relationship function between the resistance and stability of the hull acceleration.

[0079] In this embodiment, in step M2, the building of the resistance and stability model of the hull acceleration process and the prediction of the resistance and stability of the hull acceleration include:

[0080] M21, constructing a resistance function g and a stability function h of the acceleration process of the hull based on the speed data information of the hull, the posture data information of the hull running and the data information of the blade extension amount,

[0081]

[0082] Among them, z 1 is the speed data information of the hull, z 2 is the ship's movement attitude data information, z 3 is the data information of blade extension, β 1 , β 2 and β 3 is the resistance determining factor of the ship acceleration process, λ 1 , 2 and λ 3 The stability determining factor of the hull acceleration process is used to calculate the resistance and stability of the hull acceleration process, and obtain the resistance and stability data information of the hull acceleration process;

[0083] M22, based on the resistance and stability data information of the hull acceleration process, construct a resistance and stability data matrix of the hull acceleration process to obtain resistance and stability data matrix data information of the hull acceleration process;

[0084] M23, inputting the resistance and stability data matrix data information of the ship acceleration process into the resistance and stability model of the ship acceleration process for training and learning, and determining the model prediction function W,

[0085]

[0086] Among them, a is the resistance and stability data matrix information of the hull acceleration process, η 1 and η 2 The resistance and stability prediction factors of the ship acceleration process are obtained, and the trained resistance and stability models of the ship acceleration process are obtained;

[0087] M24, based on the trained resistance and stability model of the hull acceleration process, input the resistance and stability data information of the hull acceleration process, predict the resistance and stability of the hull acceleration, and obtain the predicted resistance and stability data information of the hull acceleration.

[0088] In this embodiment, in step M3, the optimization of the resistance and stability of the hull acceleration by using the Lagrange multiplier algorithm based on the adaptive adjustment factor includes:

[0089] M31, performing normalization processing based on the predicted hull acceleration resistance and stability data information to obtain normalized hull acceleration resistance and stability data information;

[0090] M32, constructing an optimization function S of hull acceleration based on the normalized hull acceleration resistance and stability data information,

[0091]

[0092] Among them, r i is the normalized data of the resistance and stability of the hull acceleration, r 0 is the average data information of the resistance and stability of the hull acceleration after normalization, ω 1 ,ω 2 and ω 3 is the optimization factor for ship acceleration, ρ i is the Lagrange multiplier of the acceleration of the ship, and n is the sample capacity;

[0093] M33, based on the optimization function S of the hull acceleration, the resistance and stability of the hull acceleration are optimized to obtain the optimized resistance and stability data information of the hull acceleration.

[0094] In this embodiment, the Lagrange multiplier ρ of the acceleration of the ship is i The constraints are:

[0095]

[0096] Embodiment 4: Based on the same inventive concept, this example also provides a computer-readable storage medium, on which is stored a computer program programmed or configured to execute the working method of the vertical lifting ship buoyancy adjustment device as described above.

[0097] Any reference to memory, storage, database or other media used in the embodiments provided in the present application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM) and memory bus dynamic RAM (RDRAM).

[0098] Furthermore, all parts involved in this application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0099] In summary:

[0100] 1. The present invention controls the up and down movement of the interceptor blades through a servo motor, and cooperates with the crank slider mechanism transmission and gear rack positioning to adjust the blade position with high precision, thereby realizing the control of the hull posture under various working conditions. At the same time, the lightweight of the device is fully considered in the material selection and structural design process, which can effectively reduce the impact of the device on the overall structural design of the ship.

[0101] 2. The present invention can automatically adjust the blade extension amount according to the navigation state and navigation parameters of the hull, thereby significantly reducing the resistance during the acceleration of the hull and improving the acceleration efficiency of the ship. At the same time, it can adjust the navigation posture of the hull, improve navigation stability, and reduce fuel consumption. It has broad application prospects.

[0102] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical lifting ship buoyancy adjustment device, wherein one or more buoyancy adjustment devices are installed on the left and right sides of the stern of the ship, characterized in that: It comprises a sleeve (2) arranged on the inner side of a stern sealing plate (28), a driving motor (3), and a back plate (1), blades (5), and a cover plate (8) arranged on the outer side of the stern sealing plate (28); One end of the sleeve (2) is fixedly connected to the inner side of the stern sealing plate (28), and the other end is connected to a driving motor (3); the output shaft (12) of the driving motor (3) passes through the stern sealing plate (28) and is connected to the blade (5) via a crank slider mechanism; The back plate (1) is fixedly mounted on the outside of the stern sealing plate (28), and the outer side surface of the back plate (1) is connected to the cover plate (8) via a plurality of columns (16), a partition plate (9) is provided between the cover plate (8) and the back plate (1), and the blade (5) is slidably arranged in the inner cavity of the partition plate (9) via a gear rack mechanism; The driving motor (3) is used to drive the blades (5) to slide up and down in the inner cavity of the partition (9) to adjust the extension amount of the blades (5) in each buoyancy adjustment device, thereby adjusting the navigation posture of the hull.

2. A vertical lifting ship buoyancy adjustment device according to claim 1, characterized in that: The crank slider mechanism comprises a connected A crank (14) and a B crank (15), a slider (4) is provided between the A crank (14) and the B crank (15), and the slider (4) 6 is installed in a limited sliding manner in a slide groove (26) provided on the blade (5).

3. A vertical lifting ship buoyancy adjustment device according to claim 2, characterized in that: The back plate (1) and the cover plate (8) are respectively provided with a first hole (23) and a second hole (24), and the rotating shafts of the A crank (14) and the B crank (15) are respectively rotatably mounted in the first hole (23) and the second hole (24).

4. The vertical lifting ship buoyancy adjustment device according to claim 1 is characterized in that: A plurality of limiting holes (27) are evenly arranged in the transverse direction on the upper side of the blade (5), and a plurality of upright posts (16) on the back plate (1) respectively pass through the corresponding limiting holes (27) and are connected to the cover plate (8).

5. The vertical lifting ship floating state adjustment device according to claim 1 is characterized in that: The gear rack mechanism comprises a plurality of toothed rollers (6) uniformly arranged in a transverse direction at the top of the blade (5) and a plurality of first racks (7) arranged at the bottom of the blade (5); the outer side surface of the back plate (1) is provided with a plurality of tooth grooves (25) corresponding to the toothed rollers (6), and each toothed roller (6) is meshedly connected with the corresponding tooth groove (25).

6. A vertical lifting ship floating state adjustment device according to claim 5, characterized in that: The inner side surface of the cover plate (8) is provided with a plurality of second racks (17) corresponding to the first racks (7), and a plurality of rollers (20) are provided between the first racks (7) and the second racks (17). The plurality of rollers (20) are connected by a connecting rod (19), and a plurality of gears (18) are provided on the connecting rod (19). Both sides of the gears (18) are respectively meshed and connected with the corresponding first racks (7) and second racks (17).

7. The vertical lifting ship buoyancy adjustment device according to claim 1 is characterized in that: The sleeve (2) is fixedly connected to the inner side of the stern sealing plate (28) via a nut (10), and a sealing ring (11) is provided at the connection between the sleeve (2) and the stern sealing plate (28), and a plurality of rotating step seals (13) are provided on the output shaft (12); A boss (21) is provided at the bottom of the back plate (1), and a side of the boss (21) facing the stern sealing plate (28) is provided with an avoidance groove (22).

8. A method for operating the ship buoyancy adjustment device according to any one of claims 1 to 7, characterized in that: The steps include: M1, based on the ship-borne attitude measurement sensor, ship-borne speed sensor and ship-borne laser displacement sensor, respectively obtains the attitude data information, speed data information of the hull operation and the blade extension data information of the floating state adjustment device in real time; M2, based on the attitude data information, speed data information and blade extension amount data information, construct a resistance and stability model of the hull acceleration process, and predict the resistance and stability of the hull acceleration to obtain predicted resistance and stability data information of the hull acceleration; M3, based on the predicted hull acceleration resistance and stability data information, using a Lagrange multiplier algorithm based on an adaptive adjustment factor to optimize the hull acceleration resistance and stability data information to obtain optimized hull acceleration resistance and stability data information; M4, based on the optimized hull acceleration resistance and stability data information, construct a control function Q of the blade extension amount to control and adjust the blade extension amount, and output the blade extension amount control data information; The control function Q of the blade extension amount is specifically as follows: Where x is the resistance data information of the optimized hull acceleration, y is the stability data information of the optimized hull acceleration, α1 and α2 are the optimization control factors of the blade extension, and f is the relationship function between the resistance and stability of the hull acceleration.

9. The working method according to claim 8, characterized in that: The construction of the resistance and stability model of the hull acceleration process and the prediction of the resistance and stability of the hull acceleration specifically include: M21, based on the attitude data information, speed data information and blade extension amount data information, construct a resistance function g and a stability function h of the hull acceleration process, and calculate the resistance and stability of the hull acceleration process to obtain the resistance and stability data information of the hull acceleration process; M22, based on the resistance and stability data information of the hull acceleration process, construct a resistance and stability data matrix of the hull acceleration process to obtain resistance and stability data matrix data information of the hull acceleration process; M23, inputting the resistance and stability data matrix data information of the hull acceleration process into the resistance and stability model of the hull acceleration process for training and learning, and obtaining the trained resistance and stability model of the hull acceleration process according to the model prediction function W; M24, based on the trained resistance and stability model of the hull acceleration process, input the resistance and stability data information of the hull acceleration process, predict the resistance and stability of the hull acceleration, and obtain the predicted resistance and stability data information of the hull acceleration.

10. The working method according to claim 8, characterized in that: The Lagrange multiplier algorithm based on the adaptive adjustment factor is used to optimize the resistance and stability of the hull acceleration, specifically including: M31, performing normalization processing based on the predicted hull acceleration resistance and stability data information to obtain normalized hull acceleration resistance and stability data information; M32, constructing an optimization function S of hull acceleration based on the normalized resistance and stability data information of hull acceleration; M33, based on the optimization function S of the hull acceleration, the resistance and stability of the hull acceleration are optimized to obtain the optimized resistance and stability data information of the hull acceleration.

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