CN103271005A - Small aspect ratio rectangular double-curved-surface surface and middle layer net plate - Google Patents
Small aspect ratio rectangular double-curved-surface surface and middle layer net plate Download PDFInfo
- Publication number
- CN103271005A CN103271005A CN2013102320616A CN201310232061A CN103271005A CN 103271005 A CN103271005 A CN 103271005A CN 2013102320616 A CN2013102320616 A CN 2013102320616A CN 201310232061 A CN201310232061 A CN 201310232061A CN 103271005 A CN103271005 A CN 103271005A
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- main panel
- plate
- aspect ratio
- main face
- web plate
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- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000003351 stiffener Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract 3
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 230000002146 bilateral effect Effects 0.000 abstract 2
- 239000002344 surface layer Substances 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
Abstract
The invention relates to a small aspect ratio rectangular double-curved-surface surface and middle layer net plate which comprises a main face plate (1). The bilateral sides of the main face plate (1) are hollow structures; the inner side and the outer side of the main face plate (1) are arc-shaped curved surfaces; the curvature of the arc-shaped curved surface which is arranged on the inner side of the main face plate (1) is larger than that of the arc-shaped curved surface which is arranged on the outer side; the top of the main face plate (1) is provided with an upper guide plate (3), the bottom of the main face plate (1) is provided with a lower guide plate (6), and the middle of the main face plate (1) is provided with a warp reinforcing plate (2); the warp reinforcing plate (2) is provided with a warp support (5) which is connected with the main face plate (1) though bilateral reinforcing ribs; and the upper guide plate (3) and the lower guide plate (6) are provided with cross rope connecting holes (4). The small aspect ratio rectangular double-curved-surface surface and middle layer net plate has the advantages of being good in expansion performance and low in resistance coefficient, enabling the hollow structures at two ends of the interior of the main face plate to provide part of buoyancy force and being applicable to surface layer and middle layer trawling operation.
Description
Technical field
The invention belongs to sea fishery and fish for technical field of tools, particularly relate to the two cambered surface table middle levels of a kind of low aspect ratio rectangle web plate.
Background technology
The main effect of trawl board is the horizontal expansion that realizes netting gear in fishing boat towing process, and it is long-pending that the sea is swept in increase.When different water layer trawlnet, web plate also plays the effect of netting gear settler, is used for realizing that netting gear vertically expands.In the operation, the different target shoals of fish is not to be in same water layer, needs correct the adjusting and control net position, and the intensive center of network interface being aimed at the shoal of fish is to fish for one of key of success technology.World's trawl-net fishing uses more web plate type that rectangle, ellipse, vertical type curved face type, vertical type curved face " V " font, slat formula, multiple aerofoil profile web plate etc. are arranged at present.These web plates generally are applicable to middle level and bottom trawling.But particularly during the surface trawl operation, be positioned at middle level or surface water in order to make network interface at middle layer trawl, often need big towing speed and regulate and drag guiding principle length.Be subjected to the restriction of this body structure of web plate and weight, the adjustable range of this control method is limited, also can cause the web plate stability decreases.
Summary of the invention
Technical problem to be solved by this invention provides the two cambered surface table middle levels of a kind of low aspect ratio rectangle web plate, has different top layers and the middle level water body operation of adaptation and has the advantage of good spreading performance.
The technical solution adopted for the present invention to solve the technical problems is: the two cambered surface table middle levels of a kind of low aspect ratio rectangle web plate is provided, comprise main panel, described main panel both sides are hollow structure, described main panel inboard and the outside are arc-shaped curved surface, the curvature of the inboard arc-shaped curved surface of described main panel is greater than the curvature of outer arcuate curved surface, deflector is installed at the main panel top, chin spoiler is installed in the bottom, the middle installation draged the guiding principle stiffener, described drag to be equipped with on the guiding principle stiffener drag the guiding principle support, the described reinforcement of guiding principle support by both sides that drag is connected with main panel, and described baffle upper plate and chin spoiler are provided with pitches the guiding principle connecting hole.
Described main panel is made with the ship plate of thickness 1cm.
The curvature of the inboard arc-shaped curved surface of described main panel is about 15%, the curvature of outer arcuate curved surface is about 8%.
Described main panel edges at two ends is fillet, radius of corner 3.5cm.
The steel plate thickness of described baffle upper plate and chin spoiler is 1cm, and the wing tip development length is 10cm.
The angular edge of described baffle upper plate, chin spoiler is fillet.
Filling foamed plastics, aluminium alloy float or pressure-resistant plastic float in the hollow structure at described main panel two ends.
Beneficial effect
The two cambered surface table middle levels of a kind of low aspect ratio rectangle provided by the invention web plate, spreading performance is good, and resistance coefficient is low, and the inner two ends of main panel hollow structure can provide a part of buoyancy, is applicable to top layer, pelagic trawling.
Description of drawings
Fig. 1 is overall structure schematic diagram of the invention process;
Fig. 2 is the front view of the embodiment of the invention;
Fig. 3 is the rearview of the embodiment of the invention;
Fig. 4 is the vertical view of the embodiment of the invention;
Fig. 5 is that the A-A of Fig. 3 is to profile.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in Fig. 1 to 5, the two cambered surface table middle levels of a kind of low aspect ratio rectangle web plate, comprise main panel 1, described main panel 1 both sides are hollow structure, described main panel 1 inboard and the outside are arc-shaped curved surface, the curvature of described main panel 1 inboard arc-shaped curved surface is greater than the curvature of outer arcuate curved surface, deflector 3 is installed at main panel 1 top, chin spoiler 6 is installed in the bottom, the middle installation draged guiding principle stiffener 2, described drag to be equipped with on the guiding principle stiffener 2 drag guiding principle support 5, described guiding principle support 5 reinforcement by both sides that drags is connected with main panel 1, and described baffle upper plate 3 and chin spoiler 6 are provided with pitches guiding principle connecting hole 4.
Described main panel 1 is made with the ship plate of thickness 1cm.
The curvature of described main panel 1 inboard arc-shaped curved surface is about 15%, the curvature of outer arcuate curved surface is about 8%.
Described main panel 1 edges at two ends is fillet, radius of corner 3.5cm.
The steel plate thickness of described baffle upper plate 3 and chin spoiler 6 is 1cm, and the wing tip development length is 10cm.
The angular edge of described baffle upper plate 3, chin spoiler 6 is fillet.
Filling foamed plastics, aluminium alloy float or pressure-resistant plastic float in the hollow structure at described main panel 1 two ends.
Claims (7)
1. the two cambered surface table middle levels of low aspect ratio rectangle web plate, comprise main panel (1), it is characterized in that, described main panel (1) both sides are hollow structure, described main panel (1) inboard and the outside are arc-shaped curved surface, the curvature of the inboard arc-shaped curved surface of described main panel (1) is greater than the curvature of outer arcuate curved surface, deflector (3) is installed at main panel (1) top, chin spoiler (6) is installed in the bottom, the middle installation draged guiding principle stiffener (2), described drag to be equipped with on the guiding principle stiffener (2) drag guiding principle support (5), the described reinforcement of guiding principle support (5) by both sides that drag is connected with main panel (1), and described baffle upper plate (3) and chin spoiler (6) are provided with pitches guiding principle connecting hole (4).
2. the two cambered surface table middle levels of a kind of low aspect ratio rectangle according to claim 1 web plate is characterized in that described main panel (1) is made with the ship plate of thickness 1cm.
3. the two cambered surface table middle levels of a kind of low aspect ratio rectangle according to claim 1 web plate is characterized in that, the curvature of the inboard arc-shaped curved surface of described main panel (1) is about 15%, the curvature of outer arcuate curved surface is about 8%.
4. the two cambered surface table middle levels of a kind of low aspect ratio rectangle according to claim 1 web plate is characterized in that described main panel (1) edges at two ends is fillet, radius of corner 3.5cm.
5. the two cambered surface table middle levels of a kind of low aspect ratio rectangle according to claim 1 web plate is characterized in that the steel plate thickness of described baffle upper plate (3) and chin spoiler (6) is 1cm, and the wing tip development length is 10cm.
6. the two cambered surface table middle levels of a kind of low aspect ratio rectangle according to claim 1 web plate is characterized in that the angular edge of described baffle upper plate (3), chin spoiler (6) is fillet.
7. the two cambered surface table middle levels of a kind of low aspect ratio rectangle according to claim 1 web plate is characterized in that filling foamed plastics, aluminium alloy float or pressure-resistant plastic float in the hollow structure at described main panel (1) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310232061.6A CN103271005B (en) | 2013-06-13 | 2013-06-13 | Small aspect ratio rectangular double-curved-surface surface and middle layer net plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310232061.6A CN103271005B (en) | 2013-06-13 | 2013-06-13 | Small aspect ratio rectangular double-curved-surface surface and middle layer net plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103271005A true CN103271005A (en) | 2013-09-04 |
| CN103271005B CN103271005B (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310232061.6A Active CN103271005B (en) | 2013-06-13 | 2013-06-13 | Small aspect ratio rectangular double-curved-surface surface and middle layer net plate |
Country Status (1)
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| CN (1) | CN103271005B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766819A (en) * | 2016-03-09 | 2016-07-20 | 中国水产科学研究院东海水产研究所 | Method for adjusting work attack angle of euphausia superba dragnet horizontal expanding device |
| CN106386717A (en) * | 2016-11-23 | 2017-02-15 | 中国水产科学研究院东海水产研究所 | Rectangular curved otter board |
| CN107114330A (en) * | 2017-05-18 | 2017-09-01 | 句容市边城镇姜辉畜禽养殖专业合作社 | A kind of fish-catching apparatus in fish pond |
| CN110476904A (en) * | 2019-09-30 | 2019-11-22 | 浙江海洋大学 | A kind of air foil shape trawl board |
| CN112119969A (en) * | 2020-09-17 | 2020-12-25 | 徐金飞 | Aquaculture heating device |
| CN112205365A (en) * | 2020-09-16 | 2021-01-12 | 中国水产科学研究院东海水产研究所 | Rectangular V-shaped double-arc middle sole dual-purpose screen plate |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4180935A (en) * | 1977-08-29 | 1980-01-01 | Massachusetts Institute Of Technology | Hydrofoil trawl door |
| FR2477373A1 (en) * | 1980-03-05 | 1981-09-11 | Coleman Et Fils Sarl | Asymmetrical double-curved guide - opens ocean trawl net vertically or horizontally due to differential pressures |
| SU1117028A1 (en) * | 1980-07-21 | 1984-10-07 | Находкинская База Активного Морского Рыболовства Приморского Производственного Объединения Рыбной Промышленности "Приморрыбпром" | Strut trawl board |
| GB2147182A (en) * | 1983-10-03 | 1985-05-09 | Winston Phillips | Improvements in or relating to trawl doors |
| SU1306536A1 (en) * | 1985-02-27 | 1987-04-30 | Тихоокеанский научно-исследовательский институт рыбного хозяйства и океанографии | Trawl beam |
| SU1600657A1 (en) * | 1987-12-28 | 1990-10-23 | Центральное Проектно-Конструкторское И Технологическое Бюро Всесоюзного Рыбопромышленного Объединения Азово-Черноморского Бассейна | Thrust trawl board |
| CN2817425Y (en) * | 2005-07-19 | 2006-09-20 | 中国水产科学研究院东海水产研究所 | Rectangular curved netting plate |
| WO2010092980A1 (en) * | 2009-02-12 | 2010-08-19 | 国立大学法人東京海洋大学 | High lift otter board |
| RU2432739C1 (en) * | 2010-03-31 | 2011-11-10 | Михаил Антонович Пинчук | Trawl toggle |
| CN202890256U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Double-seam V-shaped net board of middle-layer trawl |
-
2013
- 2013-06-13 CN CN201310232061.6A patent/CN103271005B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4180935A (en) * | 1977-08-29 | 1980-01-01 | Massachusetts Institute Of Technology | Hydrofoil trawl door |
| FR2477373A1 (en) * | 1980-03-05 | 1981-09-11 | Coleman Et Fils Sarl | Asymmetrical double-curved guide - opens ocean trawl net vertically or horizontally due to differential pressures |
| SU1117028A1 (en) * | 1980-07-21 | 1984-10-07 | Находкинская База Активного Морского Рыболовства Приморского Производственного Объединения Рыбной Промышленности "Приморрыбпром" | Strut trawl board |
| GB2147182A (en) * | 1983-10-03 | 1985-05-09 | Winston Phillips | Improvements in or relating to trawl doors |
| SU1306536A1 (en) * | 1985-02-27 | 1987-04-30 | Тихоокеанский научно-исследовательский институт рыбного хозяйства и океанографии | Trawl beam |
| SU1600657A1 (en) * | 1987-12-28 | 1990-10-23 | Центральное Проектно-Конструкторское И Технологическое Бюро Всесоюзного Рыбопромышленного Объединения Азово-Черноморского Бассейна | Thrust trawl board |
| CN2817425Y (en) * | 2005-07-19 | 2006-09-20 | 中国水产科学研究院东海水产研究所 | Rectangular curved netting plate |
| WO2010092980A1 (en) * | 2009-02-12 | 2010-08-19 | 国立大学法人東京海洋大学 | High lift otter board |
| RU2432739C1 (en) * | 2010-03-31 | 2011-11-10 | Михаил Антонович Пинчук | Trawl toggle |
| CN202890256U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Double-seam V-shaped net board of middle-layer trawl |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766819A (en) * | 2016-03-09 | 2016-07-20 | 中国水产科学研究院东海水产研究所 | Method for adjusting work attack angle of euphausia superba dragnet horizontal expanding 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 |
| CN106386717A (en) * | 2016-11-23 | 2017-02-15 | 中国水产科学研究院东海水产研究所 | Rectangular curved otter board |
| CN107114330A (en) * | 2017-05-18 | 2017-09-01 | 句容市边城镇姜辉畜禽养殖专业合作社 | A kind of fish-catching apparatus in fish pond |
| CN110476904A (en) * | 2019-09-30 | 2019-11-22 | 浙江海洋大学 | A kind of air foil shape trawl board |
| CN110476904B (en) * | 2019-09-30 | 2021-08-10 | 浙江海洋大学 | Wing-shaped trawl board |
| CN112205365A (en) * | 2020-09-16 | 2021-01-12 | 中国水产科学研究院东海水产研究所 | Rectangular V-shaped double-arc middle sole dual-purpose screen plate |
| CN112119969A (en) * | 2020-09-17 | 2020-12-25 | 徐金飞 | Aquaculture heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103271005B (en) | 2014-07-30 |
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| C14 | Grant of patent or utility model | ||
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