CN112623111B - Ligature bridge base damping device based on container ship - Google Patents
Ligature bridge base damping device based on container ship Download PDFInfo
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- CN112623111B CN112623111B CN202110073826.0A CN202110073826A CN112623111B CN 112623111 B CN112623111 B CN 112623111B CN 202110073826 A CN202110073826 A CN 202110073826A CN 112623111 B CN112623111 B CN 112623111B
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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
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/0081—Vibration isolation or damping elements or arrangements, e.g. elastic support of deck-houses
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/28—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for deck loads
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/28—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for deck loads
- B63B2025/285—Means for securing deck containers against unwanted movements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a lashing bridge base damping device based on a container ship, which comprises a lashing bridge, wherein the lashing bridge penetrates into a ship body downwards, an upper damping plate and a lower damping plate are sequentially arranged below the lashing bridge, the upper damping plate is connected with the lashing bridge through a pressure spring, the upper damping plate and the lower damping plate can generate displacement along with the deformation of the pressure spring in the vertical direction, a plurality of primary damping devices are arranged between the upper damping plate and the lower damping plate, the damping springs are arranged between the primary damping devices and between the lower damping plate and the primary damping devices, fixing cabins are arranged on two sides of the primary damping devices, the fixing cabins are fixedly connected with the ship body, a plurality of secondary damping devices are arranged in the fixing cabins, and the secondary damping devices correspond to the primary damping devices one by one and are elastically connected with each other; a plurality of horizontal three-level damping devices are arranged below the lower damping plate, and the three-level damping devices are fixedly connected with the ship body and the three-level damping devices through connecting springs. The invention has simple structure and convenient use.
Description
Technical Field
The invention belongs to the technical field of civil ship equipment, and particularly relates to a shock absorption device for a lashing bridge base based on a container ship.
Background
With the globalization development of the logistics industry, the container ship transportation industry becomes more and more hot, the container ship in the current shipping market tends to be large-scale and even huge-scale, however, the increase of the carrying capacity also means that the bound bridge base needs to bear larger stress.
Current container ship ligature bridge base uses single welding mode usually, causes poor stability, and the bradyseism effect is not good, and produces structural fatigue easily, and most ligature bridge base's failure time is no longer than 20 years to influence its life, increase cost of transportation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a lashing bridge base damping device based on a container ship aiming at the defects of the prior art.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a lashing bridge base damping device based on a container ship is arranged in a ship body and comprises a lashing bridge, the lashing bridge penetrates into the ship body downwards, an upper damping plate and a lower damping plate are sequentially arranged below the lashing bridge, the upper damping plate is connected with the lower surface of the binding bridge through a pressure spring, the upper damping plate and the lower damping plate can generate displacement along with the deformation of the pressure spring in the vertical direction, a plurality of primary damping devices are arranged between the upper damping plate and the lower damping plate, damping springs are arranged between the primary damping devices and between the lower damping plate and the primary damping devices, fixed cabins are arranged on two sides of the primary damping device and fixedly connected with the ship body, a plurality of secondary damping devices are arranged in the fixed cabins, and the secondary damping devices correspond to the primary damping devices one by one and are elastically connected with each other; and a plurality of horizontal three-level damping devices are arranged below the lower damping plate, and the three-level damping devices and the ship body and the three-level damping devices are fixedly connected through connecting springs.
In order to optimize the technical scheme, the specific measures adopted further comprise:
furthermore, one-level damping device is two, and every one-level damping device all includes the crooked steel sheet of a plurality of downwarping, connect through compression spring between the crooked steel sheet, the both ends of crooked steel sheet respectively with the second grade damping device elastic connection who corresponds in the fixed cabin.
Further, fixed cabin includes cabin and lower cabin, all is provided with second grade damping device in every cabin, one side that goes up the cabin and be close to one-level damping device is provided with the spacing board, one side that lower cabin is close to one-level damping device is provided with the spacing board down, the upper and lower inside wall that goes up cabin and lower cabin and be close to fixed cabin all is provided with fixed stop.
Furthermore, the bent steel plate penetrates through the upper limiting plate and the lower limiting plate to be elastically connected with the corresponding secondary damping device, and a bump for limiting the downward displacement of the lower damping plate is arranged at the lower end of the lower limiting plate.
Further, the bent steel plates are parallel to each other.
Further, second grade damping device includes the telescopic link, telescopic link one end is fixed at the inside wall of fixed cabin, and the other end is fixed on the movable plate, the movable plate is located between fixed stop and last spacing board or the spacing board down, the movable plate is provided with the pulley with the one end of fixed cabin upper and lower inside wall contact, fixed cabin upper and lower inside wall is provided with the slide, the pulley slides about in the slide, one side fixed mounting that the telescopic link was kept away from to the movable plate has the hemisphere cassette, the both ends and the hemisphere cassette of crooked steel sheet are connected fixedly.
Furthermore, a telescopic spring is arranged in the lifting and stretching rod.
Further, the third-level damping device is a hydraulic spring damper, the lower end of the hydraulic spring damper is provided with a universal wheel, and the universal wheel slides on the ship body.
Furthermore, elastic foam is filled between the lashing bridge and the ship body.
The invention has the beneficial effects that:
the lashing bridge base damping device based on the container ship is provided with the three-level damping and buffering devices, impact force in multiple stress directions can be buffered through reasonable layout and interconnection of all levels of damping devices, the navigation danger of a large-load cargo ship on the sea is greatly reduced, and meanwhile, the lashing bridge base damping device is simple in structure and convenient to use.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic view of the overall structure of the present invention.
The reference signs are: the ship comprises a ship body 1, a lashing bridge 2, an upper damping plate 3, a lower damping plate 4, a pressure spring 5, a damping spring 6, a connecting spring 7, a bent steel plate 8, a compression spring 9, an upper cabin 10, a lower cabin 11, an upper limiting plate 12, a lower limiting plate 13, a fixed baffle 14, a bump 15, a telescopic rod 16, a movable plate 17, a pulley 18, a hemisphere clamping seat 19, a telescopic spring 20, a three-stage damping device 21, a universal wheel 22 and elastic foam 23.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in figure 1, the invention is a lashing bridge base damping device based on a container ship, the damping device is arranged in a ship body 1 and comprises a lashing bridge 2, the lashing bridge 2 penetrates into the ship body 1 downwards, elastic foam 23 is filled between the lashing bridge 2 and the ship body 1, an upper damping plate 3 and a lower damping plate 4 are sequentially arranged below the lashing bridge 2, the upper damping plate 3 is connected with the lower surface of the lashing bridge 2 through a pressure spring 5, the upper damping plate 3 and the lower damping plate 4 can generate displacement along with the deformation of the pressure spring 5 in the vertical direction, a plurality of primary damping devices are arranged between the upper damping plate 3 and the lower damping plate 4, damping springs 6 are respectively arranged between the primary damping devices and between the lower damping plate 4 and the primary damping devices, fixing cabins are arranged at two sides of the primary damping devices and fixedly connected with the ship body 1, a plurality of secondary damping devices are arranged in the fixing cabins, the secondary damping devices correspond to the primary damping devices one by one and are elastically connected with each other; a plurality of horizontal three-level damping devices are arranged below the lower damping plate 4, and the three-level damping devices and the ship body 1 and the three-level damping devices are fixedly connected through connecting springs 7.
Wherein one-level damping device is two, and every one-level damping device all includes the crooked steel sheet 8 of a plurality of downwarping, is parallel to each other between the crooked steel sheet 8, connects through compression spring 9 between the crooked steel sheet 8, and crooked steel sheet 8's both ends respectively with the second grade damping device elastic connection who corresponds in the fixed cabin.
The fixed cabin includes cabin 10 and lower cabin 11, all is provided with second grade damping device in every cabin, and one side that goes up cabin 10 and be close to one-level damping device is provided with spacing board 12, and one side that lower cabin 11 is close to one-level damping device is provided with spacing board 13 down, and the upper and lower inside wall that goes up cabin 10 and is close to the fixed cabin in the cabin 11 all is provided with fixed stop 14.
The bent steel plate 8 penetrates through the upper limiting plate 12 and the lower limiting plate 13 to be elastically connected with the corresponding secondary damping device, and the lower end of the lower limiting plate 13 is provided with a lug 15 for limiting the downward displacement of the lower damping plate 4.
Two-stage damping device includes telescopic link 16, be provided with expanding spring 20 in the lift telescopic link 16, the inside wall at the fixed cabin is fixed to telescopic link 16 one end, the other end is fixed on movable plate 17, movable plate 17 is located between fixed stop 14 and last spacing board 12 or lower spacing board 13, the one end of movable plate 17 and the contact of the inside wall is provided with pulley 18 about the fixed cabin, the inside wall is provided with the slide about the fixed cabin, pulley 18 slides about in the slide, one side fixed mounting that telescopic link 15 was kept away from to movable plate 16 has hemisphere cassette 19, the both ends and the hemisphere cassette 19 of crooked steel sheet 8 are connected fixedly.
The third damping device 21 is a hydraulic spring damper, the lower end of which is provided with a universal wheel 22, and the universal wheel 22 slides on the ship body 1.
The damping process of the invention is as follows:
when the lashing bridge 2 has downward impact load, firstly, the lower surface of the lashing bridge 2 pushes the upper damping plate 3 downwards to move downwards through the pressure spring 5, the upper damping plate 3 exerts pressure on the bent steel plate 8 in the downward movement process, so that the bent steel plate 8 extends towards two sides, and meanwhile, the two ends of the bent steel plate 8 push the movable plate 17 corresponding to the upper limiting plate 12 to move towards one side far away from the bent steel plate 8, so that the impact load is eliminated.
When the impact load is large, when the shock impact cannot be offset or relieved by only the upper damping plate 3 and one primary damping device, the upper bent steel plate 8 continues to apply downward thrust, the thrust is extended to the lower bent steel plate 8 through the damping spring 6, at the moment, the bent steel plate 8 continues to extend towards two sides, the movable plate 17 corresponding to the lower limiting plate 13 is driven to move towards one side far away from the bent steel plate 8, and the impact load is further eliminated.
When impact load still can't cushion the shock attenuation at one-level, second grade damping device, continue to push down shock attenuation board 4 down, carry out the shock attenuation through the tripolar damping device who is connected with shock attenuation board 4 down, reach the impact of offsetting external force completely.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (6)
1. The utility model provides a ligature bridge base damping device based on container ship, this damping device installs in hull (1), its characterized in that: including ligature bridge (2), ligature bridge (2) penetrate hull (1) downwards, the below of ligature bridge (2) has set gradually shock attenuation board (3) and lower shock attenuation board (4), it is connected with ligature bridge (2) lower surface through compression spring (5) to go up shock attenuation board (3), go up shock attenuation board (3) and lower shock attenuation board (4) and can produce the displacement along with the deformation of compression spring (5) in vertical direction, it is provided with a plurality of one-level damping device to go up between shock attenuation board (3) and lower shock attenuation board (4), one-level damping device is two, and every one-level damping device all includes a plurality of crooked steel sheet (8) of downwarping, connect through compression spring (9) between crooked steel sheet (8), the both ends of crooked steel sheet (8) respectively with the second grade damping device elastic connection that the fixed cabin corresponds, all be provided with between the one-level damping device and between lower shock attenuation board (4) and the one-level damping device and subtract Shake the spring (6), the fixed cabin is provided with on both sides of the first-level damping device, the fixed cabin is fixedly connected with the hull (1), a plurality of second-level damping devices are provided in the fixed cabin, the second-level damping devices correspond to the first-level damping devices one by one and are mutually and elastically connected, each second-level damping device comprises a telescopic rod (16), one end of each telescopic rod (16) is fixed on the inner side wall of the fixed cabin, the other end of each telescopic rod is fixed on a movable plate (17), the movable plate (17) is positioned between a fixed baffle (14) and an upper limiting plate (12) or a lower limiting plate (13), a pulley (18) is provided at one end of each movable plate (17) contacting with the upper inner side wall and the lower inner side wall of the fixed cabin, a slide way is provided on the upper inner side and the lower inner side wall of the fixed cabin, the pulley (18) slides left and right in the slide way, a hemisphere clamping seat (19) is fixedly installed on one side of the movable plate (17) far away from the telescopic rods (16), two ends of the bent steel plate (8) are fixedly connected with the hemispherical clamping seat (19); lower shock attenuation board (4) below is provided with the tertiary damping device of a plurality of levels, tertiary damping device (21) are hydraulic spring damper, hydraulic spring damper lower extreme is provided with universal wheel (22), universal wheel (22) slide on hull (1), all connect fixedly through connecting spring (7) between tertiary damping device and hull (1) and between the tertiary damping device.
2. The lashing bridge base shock absorption device based on the container ship according to claim 1, wherein: the fixed cabin comprises an upper cabin (10) and a lower cabin (11), a second-stage damping device is arranged in each cabin, one side, close to the first-stage damping device, of the upper cabin (10) is provided with an upper limiting plate (12), one side, close to the first-stage damping device, of the lower cabin (11) is provided with a lower limiting plate (13), and upper and lower inner side walls, close to the fixed cabin, of the upper cabin (10) and the lower cabin (11) are provided with fixed baffle plates (14).
3. The lashing bridge base shock absorption device based on the container ship according to claim 2, wherein: the bent steel plate (8) penetrates through the upper limiting plate (12) and the lower limiting plate (13) to be elastically connected with the corresponding two-stage damping device, and a bump (15) for limiting the downward displacement of the lower damping plate (4) is arranged at the lower end of the lower limiting plate (13).
4. The lashing bridge base shock absorption device based on a container ship according to claim 3, wherein: the bent steel plates (8) are parallel to each other.
5. The lashing bridge base shock absorption device based on the container ship according to claim 1, wherein: an expansion spring (20) is arranged in the expansion link (16).
6. The lashing bridge base shock absorption device based on the container ship according to claim 1, wherein: elastic foam (23) is filled between the lashing bridge (2) and the ship body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073826.0A CN112623111B (en) | 2021-01-20 | 2021-01-20 | Ligature bridge base damping device based on container ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073826.0A CN112623111B (en) | 2021-01-20 | 2021-01-20 | Ligature bridge base damping device based on container ship |
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| Publication Number | Publication Date |
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| CN112623111A CN112623111A (en) | 2021-04-09 |
| CN112623111B true CN112623111B (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110073826.0A Active CN112623111B (en) | 2021-01-20 | 2021-01-20 | Ligature bridge base damping device based on container ship |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113386907B (en) * | 2021-07-22 | 2021-11-23 | 江苏科技大学 | Comprehensive vibration damper for container ship lashing bridge |
| CN114197295A (en) * | 2022-01-24 | 2022-03-18 | 大连交通大学 | High-strength anti-seismic buffer structure for steel bridge and design method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0614802A1 (en) * | 1993-03-08 | 1994-09-14 | Mmc Compliance Engineering, Inc. | Apparatus and method for performing external surface work on ship hulls and the like |
| CN103331424A (en) * | 2013-05-08 | 2013-10-02 | 中国重型机械研究院股份公司 | Double-vibrating unit arc slab continuous casting machine crystallizer hydraulic vibrating mechanism |
| CN207261543U (en) * | 2017-10-13 | 2018-04-20 | 山东浩海疏浚装备有限公司 | Crane span structure damping peculiar to vessel |
| CN108725702A (en) * | 2018-08-06 | 2018-11-02 | 扬州中远海运重工有限公司 | A kind of container ship lashing bridge is only shaken structure |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120113365A (en) * | 2011-04-05 | 2012-10-15 | 에스티엑스조선해양 주식회사 | Anti-vibration structure of lashing bridge for container vessel |
| KR20130115633A (en) * | 2012-04-12 | 2013-10-22 | 현대중공업 주식회사 | Lashing bridge for moving center of gravity |
| FI126556B (en) * | 2014-03-20 | 2017-02-15 | Macgregor Finland Oy | Cargo ship mooring bridge |
| CN205353797U (en) * | 2016-01-13 | 2016-06-29 | 泉州装备制造研究所 | Container ligature bridge intelligence vibration control structure |
| KR102179904B1 (en) * | 2016-10-13 | 2020-11-17 | 현대중공업 주식회사 | Container Ship |
| US10220830B2 (en) * | 2016-12-14 | 2019-03-05 | Bendix Commercial Vehicle Systems | Front end motor-generator system and hybrid electric vehicle operating method |
| KR20190003022A (en) * | 2017-06-30 | 2019-01-09 | 대우조선해양 주식회사 | Vibration cancellation device of lashing bridge for container ship |
| CN208495542U (en) * | 2018-02-13 | 2019-02-15 | 成都巴哈极上科技有限公司 | A kind of equipment of punching press handware |
| CN208122343U (en) * | 2018-04-20 | 2018-11-20 | 凌丝露 | A kind of construction Machines support frame |
| CN108657376B (en) * | 2018-04-25 | 2019-10-01 | 武汉理工大学 | A kind of river-sea through ship cabin seat damping device |
| CN209988070U (en) * | 2018-11-27 | 2020-01-24 | 南通海国机械有限公司 | Cargo ship ligature bridge |
| CN109720371A (en) * | 2019-02-28 | 2019-05-07 | 马鞍山蓝信环保科技有限公司 | A kind of quasi- zero stiffness central mounting device of stepless changing |
| CN210235250U (en) * | 2019-07-25 | 2020-04-03 | 江苏扬子鑫福造船有限公司 | Large container ship binding system |
| CN110454542A (en) * | 2019-09-05 | 2019-11-15 | 宁波建辰新型材料有限公司 | A kind of cushion socket for plastic grain cutting machine |
| CN110758926A (en) * | 2019-10-31 | 2020-02-07 | 三一海洋重工有限公司 | Rotary lock, container and container loading and unloading method |
| CN111098982A (en) * | 2019-12-20 | 2020-05-05 | 中国船舶工业集团公司第七0八研究所 | Lashing bridge structure of large container ship |
| CN212004084U (en) * | 2020-04-30 | 2020-11-24 | 钱洪伟 | Electrical equipment for assembly type building |
| CN112228707A (en) * | 2020-09-29 | 2021-01-15 | 黄山市展硕半导体科技有限公司 | Luminous screen with vibration damping mount |
-
2021
- 2021-01-20 CN CN202110073826.0A patent/CN112623111B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0614802A1 (en) * | 1993-03-08 | 1994-09-14 | Mmc Compliance Engineering, Inc. | Apparatus and method for performing external surface work on ship hulls and the like |
| AU5529894A (en) * | 1993-03-08 | 1994-09-15 | Metro Machine Corp. | Apparatus and method for performing external surface work on ship hulls |
| CN103331424A (en) * | 2013-05-08 | 2013-10-02 | 中国重型机械研究院股份公司 | Double-vibrating unit arc slab continuous casting machine crystallizer hydraulic vibrating mechanism |
| CN207261543U (en) * | 2017-10-13 | 2018-04-20 | 山东浩海疏浚装备有限公司 | Crane span structure damping peculiar to vessel |
| CN108725702A (en) * | 2018-08-06 | 2018-11-02 | 扬州中远海运重工有限公司 | A kind of container ship lashing bridge is only shaken structure |
Non-Patent Citations (2)
| Title |
|---|
| 10000 TEU超大型集装箱船的建造工法设计;余勇华 陈金炉 杨辉;《江苏船舶》;20150830;全文 * |
| 大型集装箱船绑扎桥振动特性;孙芳胜 王佳颖;《船舶与海洋工程》;20200425;全文 * |
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