CN103340186B - The two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method - Google Patents
The two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method Download PDFInfo
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- CN103340186B CN103340186B CN201310232064.XA CN201310232064A CN103340186B CN 103340186 B CN103340186 B CN 103340186B CN 201310232064 A CN201310232064 A CN 201310232064A CN 103340186 B CN103340186 B CN 103340186B
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- high aspect
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003351 stiffener Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000008569 process Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
- A01K73/04—Devices for spreading or positioning, e.g. control thereof
- A01K73/045—Devices for spreading or positioning, e.g. control thereof for lateral sheering, e.g. trawl boards
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to the two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method, main panel is vertical pair of globoidal structure, cross section is Gothic inner hollow, top board is installed at top, lower roof plate is installed in bottom, middle installation middle part stiffener, between upper plate and middle part stiffener, deep floor is separately installed with between middle part stiffener and lower roof plate, and inner space is separated into four watertight spaces, main panel installed in front has deflector, middle part stiffener is provided with near one end of front side and drags guiding principle link, install near top on rear side of top board and fork guiding principle link is installed near the position at top, rear end is separately installed with fork guiding principle link near the position of upper plate and lower roof plate, each watertight space mounting of rear side has resistance to pressure valve.The present invention makes web plate drift along than quick adjustment, does not change the hydrodynamic performance of web plate original structure, regulates flexibly in the trawling of different water levels, drift along than adjustment time position of centre of gravity can be kept low, there is good stability.
Description
Technical field
The invention belongs to sea fishery and fish for technical field of tools, particularly relate to the two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method.
Background technology
Trawl board is the main accessory realizing netting gear expansion in the towing process of trawler.Web plate type conventional in current trawl-net fishing has rectangle, ellipse, vertical type curved face type, vertical type curved face " V " shape, rectangle double slit curved face type, multiple aerofoil profile web plate etc.Wooden, steel and steel wood mixed structure web plate etc. can be divided into according to material.When trawling, the common method of regulation and control net position regulates to drag guiding principle length and trawlnet speed, and by draging the movement of guiding principle anchoring point or web plate fork guiding principle anchoring point to web plate, make web plate generation vertical stress component up or down, the residing water layer of adjustment.When carrying out top layer and pelagic trawling, wishing under certain towing tension and towing speed condition, making web plate have larger expansionary force and less water resistance.But be subject to this body structure of web plate and heavily quantitative limitation, the adjustable range of current this control method is limited, not only operates the more complicated web plate stability that also can cause and declines.
Summary of the invention
Technical problem to be solved by this invention is to provide the two cambered surface trawl board of a kind of high aspect ratio and drifts along and compares control method, realize web plate drift along than quick adjustment, simple to operate, do not change the hydrodynamic performance of web plate original structure, in the trawling of different water levels, use can be regulated flexibly.Drift along than adjustment time position of centre of gravity can be kept low, there is good stability.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of high aspect ratio two cambered surface trawl board, comprise main panel, described main panel is vertical pair of globoidal structure, cross section is Gothic inner hollow, top board is installed at described main panel top, lower roof plate is installed in bottom, middle installation middle part stiffener, between described upper plate and middle part stiffener, deep floor is separately installed with between middle part stiffener and lower roof plate, described upper plate, middle part stiffener, main panel inner space is separated into four watertight spaces by lower roof plate and deep floor, described main panel installed in front has deflector, described middle part stiffener is provided with near one end of front side and drags guiding principle link, described main panel is installed near top on rear side of top board and is provided with fork guiding principle link near the position at top, described main panel rear end is separately installed with fork guiding principle link near the position of upper plate and lower roof plate, above and below each watertight space on rear side of described main panel, position is provided with resistance to pressure valve.
Described main panel inner arc radius of curvature is greater than outer arc radius of curvature.
Described main panel edges at two ends is fillet.
Connected by connecting plate between described main panel and deflector.
Described top is installed in the outside one side of top board and hook is housed.
The angular edge of described upper plate, middle part stiffener, lower roof plate, deep floor, deflector all becomes fillet.
The distance of described main panel top-to-bottom and front side are 2.5:1 to the aspect ratio of the distance of rear side.
The two cambered surface trawl board of any one high aspect ratio aforesaid drift along than control method, its step is as follows:
A, need raising drift along than time, open resistance to pressure valve successively by the order of bottom behind first top, discharge the water body in watertight space;
B, then resistance to pressure valve closed, form 1 to 4 watertight spaces successively from top to bottom, watertight space is formed from top to bottom successively, can ensure that web plate position of centre of gravity is low, ensures that web plate position of centre of gravity is low, improves stability;
C, need reduction drift along than time, successively resistance to pressure valve is opened by the order on top behind first bottom, makes successively from bottom to up to fill water body in watertight space.
Beneficial effect
The invention has the advantages that, realize web plate drift along than quick adjustment, simple to operate, do not change the hydrodynamic performance of web plate original structure, in the trawling of different water levels, use can be regulated flexibly.Drift along than adjustment time position of centre of gravity can be kept low, there is good stability.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the front view of the embodiment of the present invention;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
Fig. 4 is that the B-B of Fig. 2 is to cutaway view;
Fig. 5 is the right view of the embodiment of the present invention.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
As shown in Fig. 1 to 5, the two cambered surface trawl board of a kind of high aspect ratio, comprise main panel 2, described main panel 2 is vertical pair of globoidal structure, cross section is Gothic inner hollow, top board 1 is installed at described main panel 2 top, lower roof plate 6 is installed in bottom, middle installation middle part stiffener 8, between described upper plate 1 and middle part stiffener 8, deep floor 7 is separately installed with between middle part stiffener 8 and lower roof plate 6, described upper plate 1, middle part stiffener 8, main panel 2 inner space is separated into four watertight spaces by lower roof plate 6 and deep floor 7, described main panel 2 installed in front has deflector 3, described middle part stiffener 8 is provided with near one end of front side and drags guiding principle link 5, described main panel 2 is installed near top on rear side of top board 1 and is provided with fork guiding principle link 10 near the position at top, described main panel 2 rear end is separately installed with fork guiding principle link 10 near the position of upper plate 1 and lower roof plate 6, above and below each watertight space on rear side of described main panel 2, position is provided with resistance to pressure valve 9.
Described main panel 2 inner arc radius of curvature is greater than outer arc radius of curvature.
Described main panel 2 edges at two ends is fillet.
Connected by connecting plate 4 between described main panel 2 and deflector 3.
Described top is installed in the outside one side of top board 1 and hook 11 is housed.
The angular edge of described upper plate 1, middle part stiffener 8, lower roof plate 6, deep floor 7, deflector 3 all becomes fillet.
The distance of described main panel 2 top-to-bottom and front side are 2.5:1 to the aspect ratio of the distance of rear side.
The two cambered surface trawl board of any one high aspect ratio aforesaid drift along than control method, its step is as follows:
A, need raising drift along than time, open resistance to pressure valve 9 successively by the order of bottom behind first top, discharge the water body in watertight space;
B, then resistance to pressure valve closed, form 1 to 4 watertight spaces successively from top to bottom, watertight space is formed from top to bottom successively, can ensure that web plate position of centre of gravity is low, ensures that web plate position of centre of gravity is low, improves stability;
C, need reduction drift along than time, successively resistance to pressure valve is opened by the order on top behind first bottom, makes successively from bottom to up to fill water body in watertight space.
Deflector 3 is positioned at main panel 2 front end as shown in Figure 4, is connected with main panel 2 by connecting plate 4.Fork guiding principle link 10 is fixed on main panel 2 outer ledge position.
Rear end outside main panel 2 as shown in Figure 5, above and below each watertight space, position is provided with resistance to pressure valve 9.
The general perspective of the table middle layer trawl web plate of the embodiment of the present invention also can be the rectangle that aspect ratio is less than 2.5; Can filling compressed air in the watertight space of main panel 2 inside.
Claims (8)
1. the two cambered surface trawl board of high aspect ratio, comprise main panel (2), it is characterized in that, described main panel (2) is vertical pair of globoidal structure, cross section is Gothic inner hollow, top board (1) is installed at described main panel (2) top, lower roof plate (6) is installed in bottom, middle installation middle part stiffener (8), between described upper plate (1) and middle part stiffener (8), deep floor (7) is separately installed with between middle part stiffener (8) and lower roof plate (6), described upper plate (1), middle part stiffener (8), main panel (2) inner space is separated into four watertight spaces by lower roof plate (6) and deep floor (7), described main panel (2) installed in front has deflector (3), described middle part stiffener (8) is provided with near one end of front side and drags guiding principle link (5), described main panel (2) rear end is separately installed with fork guiding principle link (10) near the position of upper plate (1) and lower roof plate (6), above and below each watertight space of described main panel (2) rear side, position is provided with resistance to pressure valve (9).
2. the two cambered surface trawl board of a kind of high aspect ratio according to claim 1, it is characterized in that, described main panel (2) inner arc radius of curvature is greater than outer arc radius of curvature.
3. the two cambered surface trawl board of a kind of high aspect ratio according to claim 1, it is characterized in that, described main panel (2) edges at two ends is fillet.
4. the two cambered surface trawl board of a kind of high aspect ratio according to claim 1, be is characterized in that, connected between described main panel (2) and deflector (3) by connecting plate (4).
5. the two cambered surface trawl board of a kind of high aspect ratio according to claim 1, it is characterized in that, described top is installed in the outside one side of top board (1) and hook (11) is housed.
6. the two cambered surface trawl board of a kind of high aspect ratio according to claim 1, it is characterized in that, the angular edge of described upper plate (1), middle part stiffener (8), lower roof plate (6), deep floor (7), deflector (3) all becomes fillet.
7. the two cambered surface trawl board of a kind of high aspect ratio according to claim 1, is characterized in that, the distance of described main panel (2) top-to-bottom and front side are 2.5:1 to the aspect ratio of the distance of rear side.
8. drift along than control method according to the two cambered surface trawl board of any one high aspect ratio described in claim 1 to 7, its step is as follows:
A, need raising drift along than time, open resistance to pressure valve (9) successively by the order of bottom behind first top, discharge the water body in watertight space;
B, then resistance to pressure valve closed, form 1 to 4 watertight spaces successively from top to bottom, watertight space is formed from top to bottom successively, can ensure that web plate position of centre of gravity is low, ensures that web plate position of centre of gravity is low, improves stability;
C, need reduction drift along than time, successively resistance to pressure valve is opened by the order on top behind first bottom, makes successively from bottom to up to fill water body in watertight space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310232064.XA CN103340186B (en) | 2013-06-13 | 2013-06-13 | The two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310232064.XA CN103340186B (en) | 2013-06-13 | 2013-06-13 | The two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method |
Publications (2)
| Publication Number | Publication Date |
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| CN103340186A CN103340186A (en) | 2013-10-09 |
| CN103340186B true CN103340186B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310232064.XA Active CN103340186B (en) | 2013-06-13 | 2013-06-13 | The two cambered surface trawl board of a kind of high aspect ratio and drift along and compare control method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017046819A1 (en) * | 2015-09-14 | 2017-03-23 | Ny Toghlerahonnun Ehf. | Hollow trawl door and weights therefor |
| US10925267B2 (en) | 2015-09-14 | 2021-02-23 | Ny Toghlerahonnun Ehf. | Airfoil shaped trawl door |
| CN108289438B (en) * | 2015-11-18 | 2021-07-20 | Mld私人有限责任公司 | Trawl door with adjusting device |
| CN105766819B (en) * | 2016-03-09 | 2018-10-02 | 中国水产科学研究院东海水产研究所 | A kind of krill trawlnet horizontal expansion device operation angle of attack method of adjustment |
| CN105875534B (en) * | 2016-05-24 | 2019-05-31 | 中国水产科学研究院东海水产研究所 | A kind of frame panel formula assembly reticular lamina |
| CN109984101B (en) * | 2019-04-30 | 2024-01-30 | 中国水产科学研究院东海水产研究所 | Vertical trawl board with auxiliary hanging function |
| CN111990346A (en) * | 2020-08-19 | 2020-11-27 | 中国水产科学研究院东海水产研究所 | Euphausia superba trawl net plate water changing layer adjusting mechanism and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB220988A (en) * | 1923-05-28 | 1924-08-28 | Thomas Samuel Rayton | Improvements in connection with trawl nets |
| SU1117028A1 (en) * | 1980-07-21 | 1984-10-07 | Находкинская База Активного Морского Рыболовства Приморского Производственного Объединения Рыбной Промышленности "Приморрыбпром" | Strut trawl board |
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| RU2194388C1 (en) * | 2001-06-05 | 2002-12-20 | Аглодин Виктор Владимирович | Wing-shaped trawler's board |
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| JP5679398B2 (en) * | 2009-02-12 | 2015-03-04 | 国立大学法人東京海洋大学 | High lift otter board |
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2013
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| CN2798586Y (en) * | 2005-07-06 | 2006-07-26 | 中国水产科学研究院东海水产研究所 | Screen plate for expanding dragnet sleeve and mouth |
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| CN101686657A (en) * | 2007-04-24 | 2010-03-31 | 汉皮德简公司 | Perforated slat trawl door |
| CN101248777A (en) * | 2008-03-17 | 2008-08-27 | 荣成市石岛运通渔网厂 | Vertical type curved face water diversion plate |
| RU2432739C1 (en) * | 2010-03-31 | 2011-11-10 | Михаил Антонович Пинчук | Trawl toggle |
| CN202896841U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Vertical double-seam net board of middle-layer trawl |
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Non-Patent Citations (1)
| Title |
|---|
| CNA01K73/045Y 2006.09.20 * |
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| Publication number | Publication date |
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| CN103340186A (en) | 2013-10-09 |
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