CN104839104B - A kind of upright curved surface grid type web plate - Google Patents
A kind of upright curved surface grid type web plate Download PDFInfo
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- CN104839104B CN104839104B CN201510261879.XA CN201510261879A CN104839104B CN 104839104 B CN104839104 B CN 104839104B CN 201510261879 A CN201510261879 A CN 201510261879A CN 104839104 B CN104839104 B CN 104839104B
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- plate
- curved surface
- aspect ratio
- high aspect
- wing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002344 surface layer 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
Abstract
The present invention relates to a kind of upright curved surface grid type web plates, it by baffle upper plate, high aspect ratio curved surface wing plate, drag guiding principle stiffening plate, chin spoiler is constituted, it is characterized in that multiple high aspect ratio curved surface wing plates are arranged between baffle upper plate and chin spoiler, each high aspect ratio curved wing plate starts along baffle upper plate and chin spoiler front end wedge shape outer arcuate, with equidistantly arranged in parallel backward, and setting drags guiding principle stiffening plate and is connected with each high aspect ratio curved wing plate, whole formula in form of a grid.The present invention provides a kind of upright curved surface grid type web plate of low aspect ratio made of being closed as multiple high aspect ratio curved surface groups of vanes, and stability and reconstitution properties are more preferable, and hydrodynamic efficiency is higher, is suitable for different gross ton fishing boats, different water levels water body operation uses.
Description
Technical field
The invention belongs to sea fishery fishing tool technical fields, more particularly to a kind of upright curved surface grid type web plate.
Background technique
Trawl board is the important accessory in single boat trawl fishing operation, and main function is to expand the horizontal of netting gear to expand
, increase trawlnet sweeps sea product.Mesh-plate structure and type common at present has very much, such as rectangle, V-arrangement, vertical type curved face, cracks
Formula etc..Wherein the advantages of vertical type curved face web plate is using high aspect ratio structure, and web plate is made into curved, reduces web plate back
Vortex, reduces the resistance of web plate, improves the lift resistance ratio of web plate, improve the hydrodynamic efficiency of web plate.But carrying out reality
It when trawling, is influenced by high aspect ratio structure and weight, which encounters barrier in entrainment can wide-angle change
Drag to, be easy to overturn, and it is more demanding to the towing tension and towing speed of fishing boat, be not suitable for middle-size and small-size trawler and use, especially
When carrying out table, middle layer operation, it is more difficult to guarantee that web plate is in target water layer.
Summary of the invention
The purpose of the present invention is to provide one kind be suitable for different gross ton fishing boats and water layer water body operation use, stability and
Reconstitution properties are more preferable, the higher upright curved surface grid type web plate of hydrodynamic efficiency.
The purpose of the present invention is achieved through the following technical solutions: it by baffle upper plate, high aspect ratio curved surface wing plate, drag guiding principle and add
Strong plate, chin spoiler are constituted, it is characterized in that multiple high aspect ratio curved surface wing plates are arranged between baffle upper plate and chin spoiler, respectively
High aspect ratio curved surface wing plate starts along baffle upper plate and chin spoiler front end wedge shape outer arcuate, with equidistantly parallel backward
Column, and setting drags guiding principle stiffening plate and is connected with each high aspect ratio curved wing plate, whole formula in form of a grid, baffle upper plate, lower water conservancy diversion
Plate is identical with the specification for draging guiding principle stiffening plate, and front end is wedge-shaped, and the size of front end outer side arc and radius of curvature and high aspect ratio
The size of curved surface wing plate outer arcuate is identical with radius of curvature.
For the prior art, remarkable result of the invention is:
1) a kind of upright curved surface grid type web plate uses the combination of multiple high aspect ratio curved surface wing plates, can give full play to big
Aspect ratio structure induced drag is low, and the high advantage of lift resistance ratio, wing plate is made into curved, can reduce wing plate back vortex, reduce resistance
Power improves web plate hydrodynamic performance；
2) a kind of upright curved surface grid type web plate, which is used, synthesizes a low aspect ratio for multiple high aspect ratio curved surface groups of vanes
Web plate main body, in addition to the advantage performance with high aspect ratio web plate stability and restoration, moreover it is possible to play low aspect ratio web plate
The feature that mobility is good, operation is convenient, thus meet single boat trawl in surface layer operation to board spread force the needs of；
3) a kind of upright curved surface grid type web plate, which is used, synthesizes a low aspect ratio for multiple high aspect ratio curved surface groups of vanes
Web plate main body, can make web plate under conditions of obtaining same expansionary force, overall dimension miniaturization, so both can be suitable for middle or small
Type fishing boat uses, and can meet in table, middle layer water body operation the needs of to board spread force；
4) a kind of upright curved surface grid type web plate, which is used, synthesizes a low aspect ratio for multiple high aspect ratio curved surface groups of vanes
Web plate main body, can according to the condition of fishing boat, netting gear adjust wing plate number, receding angle, the upper counterangle, curve form and established angle
Degree is to adapt to different trawling needs；
5) for a kind of upright curved surface grid type web plate in operation process, guide functions are played in the gap between grid, can be into one
Step reduces the influence of web plate back vortex, improves the lift resistance ratio of web plate, higher hydrodynamic(al) can be maintained in wider range of angles of attack
Power performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is inner side view of the invention；
Fig. 3 is outer side view of the invention.
Label declaration: 1: baffle upper plate, 2: high aspect ratio curved surface wing plate, 3: draging guiding principle stiffening plate, 4: chin spoiler.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with Detailed description of the invention, but the present embodiment is not used to limit
The system present invention, it is all using similar structure and its similar variation of the invention, protection scope of the present invention should all be included in.
As shown in Fig. 1 to Fig. 3, a kind of upright curved surface grid type web plate provided by the embodiment of the present invention, by upper water conservancy diversion
Plate 1, high aspect ratio curved surface wing plate 2 drag guiding principle stiffening plate 3, the composition of chin spoiler 4, set between baffle upper plate 1 and chin spoiler 4
There are multiple high aspect ratio curved surface wing plates 2, each high aspect ratio curved wing plate is along baffle upper plate 1 and 4 front end of chin spoiler wedge shape outside
Arc starts, and with equidistantly arranged in parallel backward, and setting drags guiding principle stiffening plate 3 and is connected with each high aspect ratio curved wing plate 2, whole
Body formula in form of a grid.
The baffle upper plate 1 is identical with 4 specification of chin spoiler, and front end is wedge shaped, and rear end is arc-shaped.Baffle upper plate 1 is under
The size and radius of curvature of 4 front end outer side arc of deflector and the size of 2 outer arcuate of high aspect ratio curved surface wing plate and curvature half
Diameter is identical, and the radius of curvature of rear end arc is lower than the radius of curvature of front end outer side arc.
The specification of each high aspect ratio curved wing plate 2 is identical, and board face structure is rectangle, the curvature half of plate face outer arcuate
Diameter is suitable with the chord length of web plate.
It is described to drag in guiding principle stiffening plate 3 equipped with draging guiding principle bracket and identical as the specification of baffle upper plate 1, chin spoiler 4.
As shown in Figure 1 to Figure 3,2 induced drag of high aspect ratio curved surface wing plate is low, and lift resistance ratio is high, and multiple high aspect ratios are bent
It, can be by the advantage performance of high aspect ratio web plate in different gross tons after face wing plate 2 is combined into the web plate main body an of low aspect ratio
It is emerged from fishing boat and water layer water body trawling operation, and the mobility and operation convenience of web plate can be improved.
As shown in Figure 1 to Figure 3, by adjusting the distance between each high aspect ratio curved wing plate 2, high aspect ratio curved surface wing plate
The radius of curvature of 2 outer arcuates and the curve form of high aspect ratio curved surface wing plate 2, adjustable web plate back vortex is to net
The influence of plate hydrodynamic performance.
As shown in Figure 1 to Figure 3,2 board face structure of high aspect ratio curved surface wing plate in the present invention is rectangle, and curve form can
It is set as wing, arc-shaped, non-radiused shape, quantity needs 3-10 settable according to practical structures or intensity, drags guiding principle and adds
Strong plate 3 settable 1-3.
Claims (3)
1. a kind of upright curved surface grid type web plate, it is characterised in that: it by baffle upper plate (1), high aspect ratio curved surface wing plate (2),
Guiding principle stiffening plate (3), chin spoiler (4) composition are draged, multiple high aspect ratios are set between baffle upper plate (1) and chin spoiler (4)
Curved surface wing plate (2), the baffle upper plate (1) is identical with chin spoiler (4) specification, and front end is wedge shaped, and rear end is arc-shaped, outside front end
The size and radius of curvature of side arc are identical as the size of high aspect ratio curved surface wing plate (2) outer arcuate and radius of curvature, rear end
The radius of curvature of arc be lower than front end outer side arc radius of curvature, each high aspect ratio curved wing plate along baffle upper plate (1) and under
Deflector (4) front end wedge shape outer arcuate starts, with equidistantly arranged in parallel backward, and be arranged drag guiding principle stiffening plate (3) with it is major
Aspect ratio curved surface wing plate (2) is connected, whole formula in form of a grid；The specification of each high aspect ratio curved wing plate (2) is identical, plate
Face structure is rectangle, and the radius of curvature of plate face outer arcuate and the chord length of web plate are suitable.
2. a kind of upright curved surface grid type web plate according to claim 1, which is characterized in that described to drag guiding principle stiffening plate (3)
It is identical as baffle upper plate (1) and chin spoiler (4) specification, and be equipped with and drag guiding principle bracket.
3. a kind of upright curved surface grid type web plate according to claim 1, which is characterized in that the high aspect ratio curved wing
The curve form of plate (2) may be configured as wing, arc-shaped, non-radiused shape, and quantity can be according to practical structures or intensity needs
It is arranged 3-10, drags guiding principle stiffening plate (3) settable 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261879.XA CN104839104B (en) | 2015-05-21 | 2015-05-21 | A kind of upright curved surface grid type web plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261879.XA CN104839104B (en) | 2015-05-21 | 2015-05-21 | A kind of upright curved surface grid type web plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104839104A CN104839104A (en) | 2015-08-19 |
| CN104839104B true CN104839104B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261879.XA Expired - Fee Related CN104839104B (en) | 2015-05-21 | 2015-05-21 | A kind of upright curved surface grid type web plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN104839104B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108935350B (en) * | 2018-08-03 | 2021-03-19 | 中国水产科学研究院东海水产研究所 | Floating trawl horizontal expansion device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1741701A1 (en) * | 1990-07-25 | 1992-06-23 | Научно-Производственное Объединение По Технике Промышленного Рыболовства | Trawl board |
| EP0900003B1 (en) * | 1996-04-30 | 2003-02-26 | Helgi Larsen | Otter board |
| CN103250686A (en) * | 2013-06-13 | 2013-08-21 | 中国水产科学研究院东海水产研究所 | High-aspect-ratio double-arc surface-middle layer trawl board |
| CN204292032U (en) * | 2014-12-03 | 2015-04-29 | 上海海洋大学 | A kind of trawl door structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2158202A1 (en) * | 1971-11-24 | 1973-05-30 | Weser Ag | FISHING GEAR FOR FISHING VESSELS |
| JPH0488260U (en) * | 1990-12-06 | 1992-07-31 |
-
2015
- 2015-05-21 CN CN201510261879.XA patent/CN104839104B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1741701A1 (en) * | 1990-07-25 | 1992-06-23 | Научно-Производственное Объединение По Технике Промышленного Рыболовства | Trawl board |
| EP0900003B1 (en) * | 1996-04-30 | 2003-02-26 | Helgi Larsen | Otter board |
| CN103250686A (en) * | 2013-06-13 | 2013-08-21 | 中国水产科学研究院东海水产研究所 | High-aspect-ratio double-arc surface-middle layer trawl board |
| CN204292032U (en) * | 2014-12-03 | 2015-04-29 | 上海海洋大学 | A kind of trawl door structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104839104A (en) | 2015-08-19 |
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Granted publication date: 20190412 Termination date: 20200521 |