CN112744337A - Ship driving balancing device and balancing method - Google Patents
Ship driving balancing device and balancing method Download PDFInfo
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- CN112744337A CN112744337A CN202110228574.4A CN202110228574A CN112744337A CN 112744337 A CN112744337 A CN 112744337A CN 202110228574 A CN202110228574 A CN 202110228574A CN 112744337 A CN112744337 A CN 112744337A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000007667 floating Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 64
- 230000001360 synchronised effect Effects 0.000 claims description 16
- 238000013459 approach Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 3
- 230000003044 adaptive effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
- B63B43/08—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability by transfer of solid ballast
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
- B63B43/14—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using outboard floating members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B2039/065—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water the foils being pivotal about an axis substantially parallel to the longitudinal axis of the vessel
Abstract
The invention discloses a ship running balancing device and a balancing method, which comprises two groups of floating plates, wherein the floating plates are rotatably connected to two sides of a ship body in the length direction and used for generating certain buoyancy when the ship body inclines, an adaptive balancing mechanism is arranged in the ship body and connected with the floating plates, the ship body inclined is adaptively balanced under the action of the floating plates, a resetting mechanism is arranged in the ship body and connected with the adaptive balancing mechanism and used for resetting the adaptive balancing mechanism, the ship running balancing device and the balancing method are characterized in that the floating plates are arranged on two sides of the ship body, the position of the floating plates is slightly higher than the position of the ship body on the horizontal plane, when the ship body inclines and shakes, the floating plates rotate under the action of the buoyancy to drive balancing weights to reversely move, so that the ship body is unbalanced, and further the inclination of the ship body generated by stormy waves is restored, so that the balance of the ship body is better.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a ship running balancing device and a ship running balancing method.
Background
For large-tonnage ships, the large-tonnage ships have good stability due to large mass and are convenient to install the balance device due to large space, and for small-tonnage ships such as small fishing ships for fishing and civil use, the large balance device cannot be installed generally due to the consideration of the space and the mass of the small-tonnage ships, so that the ships can swing to a large extent when sailing or parking with large wind waves, and even the ships can roll over due to the large wind waves when sailing. Therefore, a ship running balancing device and a balancing method are provided.
Disclosure of Invention
The invention aims to provide a ship running balancing device and a ship running balancing method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a ship running balancing device and a balancing method thereof comprise a ship body;
the floating plates are arranged in two groups, are rotatably connected to two sides of the ship body in the length direction and are used for generating certain buoyancy when the ship body inclines;
the self-adaptive balance mechanism is arranged in the ship body, is connected with the floating plate and is used for self-adaptively balancing the inclined ship body under the action of the floating plate;
and the resetting mechanism is arranged in the ship body, is connected with the self-adaptive balancing mechanism and is used for resetting the self-adaptive balancing mechanism.
Preferably, the self-adaptive balancing mechanism comprises a first transmission shaft which is rotatably connected in the ship body, two ends of the first transmission shaft are respectively and fixedly connected with a first transmission gear and a second transmission gear, the shaft ends of two ends of the floating plate which are rotatably connected with the ship body are respectively and fixedly connected with a driving gear which is meshed with the first transmission gear, the ship body is also in transmission connection with a plurality of second transmission shafts, the second transmission shafts are provided with synchronizing gears and a third transmission gear which is meshed with the second transmission gears, a synchronous belt is arranged between two corresponding groups of synchronizing gears on the second transmission shafts, a plurality of sliding rods are further fixedly connected in the ship body, balancing weights are slidably connected on the sliding rods, connecting blocks are connected between the balancing weights and the synchronous belts, and under the action of the water surface through the floating plate, the balancing weights are driven to move along the inclined other side of the ship body, thereby better balancing.
Preferably, the resetting mechanism comprises a fixed rod which is fixedly installed in the ship body and is provided with a cavity inside, a sliding groove is formed in the side wall of the fixed rod, a linkage block which is connected with the sliding groove in a sliding mode and drives the balance weight block to move is arranged in the fixed rod, elastic pieces are connected between the two ends of the linkage block and the fixed rod, and the resetting mechanism is convenient for resetting the balance weight block and subsequent balance.
Preferably, the both sides of hull all are provided with the telescopic link that the multiunit is used for supporting the kickboard, and the initial position of kickboard is convenient for adjust to the telescopic link.
Preferably, a unidirectional transmission ratchet mechanism is arranged between the third transmission gear and the second transmission shaft, and the unidirectional transmission ratchet mechanism is convenient for better adjustment of the telescopic rod.
Preferably, the output of telescopic link rotates and is connected with first magnetic block, just install the second magnetic block the same with the first magnetic block quantity in hull unilateral on the kickboard, and the position one-to-one, two kinds of magnetic blocks are convenient for adsorb and are fixed, rock when preventing the hull fine motion.
Preferably, the balancing weight block is made of lead and has high density, so that the balancing weight block occupies a small space.
A balancing method of a ship running balancing device comprises the following steps:
s1: the telescopic rods are controlled to control the floating plates on the two sides to reach the designated positions, and the floating plates are kept in a stable state under the action of the first magnetic blocks and the second magnetic blocks to prepare for balance work;
s2: when the ship body inclines, the floating plate on one side is subjected to the action of buoyancy, and the synchronous belt is driven under the action of the first transmission gear, the first transmission shaft, the second transmission gear, the third transmission gear, the second transmission shaft and the synchronous gear, so that the balancing weight block moves to the reverse position on the inclined side for balancing;
s3: when the ship body shakes to the other side, the floating plate on the other side performs the same action as S2 to perform balance;
s4: after balancing for many times, when the ship body approaches to balance, the balancing weight block returns to the middle position under the action of the elastic part.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the floating plates are arranged on the two sides of the ship body, the positions of the floating plates are slightly higher than the position of the ship body on the horizontal plane, and when the ship body inclines and shakes, the floating plates rotate under the action of buoyancy, so that the balancing weights are driven to move reversely, the ship body is unbalanced, the inclination of the ship body caused by stormy waves is recovered, and the balance of the ship body is better.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of the hull structure of the present invention;
FIG. 3 is a schematic diagram of a partial structure of the adaptive balancing mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of a hull;
FIG. 5 is an enlarged view of the structure of area A in FIG. 4;
FIG. 6 is a schematic view of a synchronizing gear;
fig. 7 is an enlarged view of the structure of region B in fig. 6.
In the figure: 1, a ship body; 2-floating plate; 3-a self-adaptive balancing mechanism; 4-a reset mechanism; 5-a first transmission shaft; 6-a first transmission gear; 7-a second transmission gear; 8-a drive gear; 9-a second drive shaft; 10-a synchronizing gear; 11-a synchronous belt; 12-a slide bar; 13-balancing the counterweight block; 14-connecting blocks; 15-fixing the rod; 16-a sliding slot; 17-a linkage block; 18-an elastic member; 19-a telescopic rod; 20-a first magnetic block; 21-a second magnetic block; 22-ratchet mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a ship running balancing device and a balancing method thereof comprise a ship body 1;
the floating plates 2 are arranged in two groups, are rotatably connected to two sides of the length direction of the ship body 1 and are used for generating certain buoyancy when the ship body 1 inclines, and the floating plates 2 are made of materials with low density and high strength, so that the self mass is convenient to reduce due to the low density, larger buoyancy can be provided, and the strength is high, and the damage caused by the buoyancy and the action force of the inclination of the ship body when the ship body inclines can be avoided;
the self-adaptive balance mechanism 3 is arranged in the ship body 1, is connected with the floating plate 2 and is used for self-adaptively balancing the inclined ship body 1 under the action of the floating plate 2;
and the resetting mechanism 4 is arranged in the ship body 1, is connected with the self-adaptive balancing mechanism 3 and is used for resetting the self-adaptive balancing mechanism 3.
Self-adaptation balance mechanism 3 is including rotating first transmission shaft 5 of connecting in hull 1, the both ends difference fixedly connected with first transmission gear 6 and second drive gear 7 of first transmission shaft 5, equal fixedly connected with drive gear 8 of being connected with the meshing of first transmission gear 6 on 2 both ends of kickboard and the axle head of hull 1 rotation connection, it is connected with a plurality of second transmission shafts 9 still to drive in the hull 1, and the quantity of second transmission shaft 9 is the same with first transmission shaft 5, and its quantity sets up differently according to hull size and its quality, be provided with synchronous gear 10 on the second transmission shaft 9 and with the third drive gear 23 of being connected with the meshing of second drive gear 7, corresponding two sets of be provided with hold-in range 11 between the synchronous gear 10 on the second transmission shaft 9, still a plurality of slide bars 12 of fixedly connected with in the hull 1, sliding connection has balanced weight piece 13 on the slide bar 12, the rotation of kickboard 2 can drive first drive gear 6 through drive gear 8, and then first drive gear 6 rotates and drives second drive gear 7, and the transmission of second drive gear 7 drives second transmission shaft 9 and rotates, and the last synchronizing gear 10 that sets up of second transmission shaft 9 then makes the synchronous belt 11 transmission under the drive of second transmission shaft 9, be connected with connecting block 14 between balanced balancing weight piece 13 and the synchronous belt 11, balanced balancing weight piece 13 is under connecting block 14's effect, and the axial slip and the direction along slide bar 12 are towards the one side motion of hull perk, is close to the opposite side more, and it is more far away with the center of slide bar 12, and the edge of hull 1 more partially promptly more, the arm of force that its balanced balancing weight piece 13 gravity produced is big more to make the faster recovery of hull, and the range of rocking is littleer.
The resetting mechanism 4 comprises a fixed rod 15 which is fixedly arranged in the hull 1 and is provided with a hollow cavity inside, a sliding groove 16 is arranged on the side wall of the fixed rod 15, a linkage block 17 which is connected with the sliding groove 16 in a sliding way and drives the balancing weight block 13 to move is arranged in the fixed rod 15, elastic pieces 18 are connected between the two ends of the linkage block 17 and the fixed rod 15, and the elastic pieces 18 are preferably springs, because after the ship body shakes, the balancing weight block 13 moves left and right, under the action of the resistance between the matching of the machine and the friction force of the sliding rod 12 and the like, the balancing weight block 13 can not be easily reset to the right center, so the fixing rod 15 is arranged to limit the linkage block 17 to only slide left and right, and when sliding, because the elastic members 18 on both sides provide elastic force or pulling force when moving to one side, the elastic members always move towards the middle or the positive center so as to be quickly restored when the ship body 1 does not shake.
The two sides of the ship body 1 are provided with a plurality of groups of telescopic rods 19 for supporting the floating plate 2, because under some conditions, the floating plate 2 is not required to be unfolded, or the floating plate 2 is required to be unfolded at a larger position, and under the condition that the load on the ship body 1 is different, the position height of the position force water surface of the floating plate 2 is different, therefore, when the floating plate 2 is unfolded at a higher position at a smaller position, the floating plate can not be unfolded under the action of buoyancy to cause the floating plate to be incapable of rotating, or when the ship body 1 is a fishing boat, the floating plate 2 is required to be folded when the ship body works at the side edge, so that the fishing net and the like cannot be interfered, the telescopic rods 19 adopt electric telescopic rods or hydraulic rods, and to realize the position change of the floating plate 2, the driving gear 8 is required to be a half-stroke gear, namely, has partial missing teeth, so that in a certain range, the first driving gear 6 cannot be driven when, thereby affecting the position of the balancing mass 13.
The output end of the telescopic rod 19 is rotatably connected with first magnetic blocks 20, the floating plate 2 is provided with second magnetic blocks 21 which are the same as the first magnetic blocks 20 on the single side of the ship body 1 in number, the positions of the second magnetic blocks correspond to the positions of the first magnetic blocks one to one, the floating plate 2 is difficult to be well fixed when being folded due to the effect of only supporting, and the two magnetic blocks can be adsorbed to be kept stable due to certain adsorption force at any position.
A ratchet mechanism 22 of one-way transmission is arranged between the third transmission gear 23 and the second transmission shaft 9, the main function of the ratchet mechanism 22 is that when the floating plate 2 on one side rotates under the action of buoyancy, because the rotating angle of the floating plate 2 is limited, the distance of the balance weight block 13 on the slide rod 12 which needs to move is larger, and when the ship body 1 inclines, the floating plate 2 rotates at a certain speed, so that after the ship body 1 rotates, the balance weight block 13 continues to slide under the action of inertia, the moving distance is larger, and because the floating plate 2 on the other side is in an unstressed state, the driving gear 8 serving as a half-stroke gear is not in a meshed state, so that the driving gear is not influenced, and further, the gear reduction mechanism can be used for replacing and expanding the stroke.
The balancing weight block 13 is made of lead and has high density, so that the balancing weight block occupies a small space.
A balancing method of a ship running balancing device comprises the following steps:
s1: the telescopic rods 19 are controlled to control the floating plates 2 on the two sides to reach the designated positions, and under the action of the first magnetic blocks 20 and the second magnetic blocks 21, the floating plates 2 keep a stable state and are prepared for balance work;
s2: when the ship body 1 inclines, the floating plate 2 on one side is subjected to the buoyancy effect, and the synchronous belt 11 is driven under the action of the first transmission gear 6, the first transmission shaft 5, the second transmission gear 7, the third transmission gear 23, the second transmission shaft 9 and the synchronous gear 10, so that the balancing weight block 13 moves to the reverse position on the inclined side for balancing;
s3: when the ship body 1 shakes to the other side, the floating plate 2 on the other side performs the same action as S2 to perform balance;
s4: after many times of balancing, when the hull 1 approaches the balance, the balancing weight 13 returns to the neutral position under the action of the elastic member 18.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A ship running balancing device, comprising:
a hull (1);
the floating plates (2) are arranged in two groups, are rotatably connected to two sides of the ship body (1) in the length direction and are used for generating certain buoyancy when the ship body (1) inclines;
the self-adaptive balance mechanism (3) is arranged in the ship body (1), is connected with the floating plate (2) and is used for self-adaptively balancing the inclined ship body (1) under the action of the floating plate (2);
the resetting mechanism (4) is arranged in the ship body (1), is connected with the self-adaptive balancing mechanism (3) and is used for resetting the self-adaptive balancing mechanism (3).
2. The ship running balancing apparatus of claim 1, wherein: the self-adaptive balance mechanism (3) comprises a first transmission shaft (5) which is rotatably connected in the ship body (1), the two ends of the first transmission shaft (5) are respectively fixedly connected with a first transmission gear (6) and a second transmission gear (7), the two ends of the floating plate (2) are respectively fixedly connected with a driving gear (8) which is meshed with the first transmission gear (6) on the shaft end which is rotatably connected with the ship body (1), a plurality of second transmission shafts (9) are also connected in the ship body (1) in a transmission manner, a synchronous gear (10) and a third transmission gear (23) which is meshed with the second transmission gear (7) are arranged on the second transmission shaft (9), a synchronous belt (11) is arranged between the synchronous gears (10) on the corresponding two groups of second transmission shafts (9), and a plurality of sliding rods (12) are also fixedly connected in the ship body (1), sliding connection has balancing weight piece (13) on slide bar (12), be connected with connecting block (14) between balancing weight piece (13) and hold-in range (11).
3. The ship running balancing apparatus of claim 2, wherein: the resetting mechanism (4) comprises a fixing rod (15) which is fixedly installed in the ship body (1) and is provided with a cavity inside, a sliding groove (16) is formed in the side wall of the fixing rod (15), a linkage block (17) which is connected with the sliding groove (16) in a sliding mode and drives the balancing weight block (13) to move is arranged in the fixing rod (15), and elastic pieces (18) are connected between the two ends of the linkage block (17) and the fixing rod (15).
4. The ship running balancing apparatus of claim 2, wherein: both sides of the ship body (1) are provided with a plurality of groups of telescopic rods (19) for supporting the floating plate (2).
5. The ship running balancing apparatus of claim 4, wherein: a ratchet wheel mechanism (22) for one-way transmission is arranged between the third transmission gear (23) and the second transmission shaft (9).
6. The ship running balancing apparatus of claim 5, wherein: the output end of telescopic link (19) rotates and is connected with first magnetism piece (20), just install on kickboard (2) with the same second magnetism piece (21) of the first magnetism piece (20) quantity of hull (1) unilateral, and the position one-to-one.
7. The ship running balancing apparatus of claim 1, wherein: the balancing weight block (13) is made of lead.
8. A balancing method of a ship running balancing device according to claims 1-7, characterized by comprising the steps of:
s1: the telescopic rods (19) are controlled to control the floating plates (2) on the two sides to reach the designated positions, and under the action of the first magnetic blocks (20) and the second magnetic blocks (21), the floating plates (2) keep a stable state and are prepared for balance work;
s2: when the ship body (1) inclines, the floating plate (2) on one side is subjected to the action of buoyancy, and the synchronous belt (11) is driven under the action of the first transmission gear (6), the first transmission shaft (5), the second transmission gear (7), the third transmission gear (23), the second transmission shaft (9) and the synchronous gear (10), so that the balancing weight block (13) moves towards the reverse position on the inclined side to be balanced;
s3: when the ship body (1) shakes to the other side, the floating plate (2) on the other side performs the same action as S2 to perform balance;
s4: after balancing for a plurality of times, when the ship body (1) approaches to balance, the balancing weight block (13) restores to the middle position under the action of the elastic piece (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110228574.4A CN112744337B (en) | 2021-03-02 | 2021-03-02 | Ship driving balancing device and balancing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110228574.4A CN112744337B (en) | 2021-03-02 | 2021-03-02 | Ship driving balancing device and balancing method |
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| Publication Number | Publication Date |
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| CN112744337A true CN112744337A (en) | 2021-05-04 |
| CN112744337B CN112744337B (en) | 2021-12-14 |
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| CN202110228574.4A Active CN112744337B (en) | 2021-03-02 | 2021-03-02 | Ship driving balancing device and balancing method |
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| CN113371350A (en) * | 2021-08-14 | 2021-09-10 | 丹华海洋工程装备(南通)有限公司 | Container for ship |
| CN115593579A (en) * | 2022-10-21 | 2023-01-13 | 启东集胜设计有限公司（Cn） | Ship stabilizing device |
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|---|---|---|---|---|
| CN113371350A (en) * | 2021-08-14 | 2021-09-10 | 丹华海洋工程装备(南通)有限公司 | Container for ship |
| CN115593579A (en) * | 2022-10-21 | 2023-01-13 | 启东集胜设计有限公司（Cn） | Ship stabilizing device |
| CN115593579B (en) * | 2022-10-21 | 2024-01-30 | 启东集胜设计有限公司 | Ship stabilizing device |
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|---|---|
| CN112744337B (en) | 2021-12-14 |
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