CN104920312B - A kind of upright grid type web plate - Google Patents
A kind of upright grid type web plate Download PDFInfo
- Publication number
- CN104920312B CN104920312B CN201510261861.XA CN201510261861A CN104920312B CN 104920312 B CN104920312 B CN 104920312B CN 201510261861 A CN201510261861 A CN 201510261861A CN 104920312 B CN104920312 B CN 104920312B
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- CN
- China
- Prior art keywords
- plate
- aspect ratio
- baffle upper
- chin spoiler
- high aspect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention relates to a kind of upright grid type web plate, it is by baffle upper plate, high aspect ratio wing plate, drag guiding principle reinforcing plate, chin spoiler is formed, it is characterized in that multiple high aspect ratio wing plates are set between baffle upper plate and chin spoiler, angle of the upper and lower side of high aspect ratio wing plate along baffle upper plate and chin spoiler front end wedge shape is connected with baffle upper plate and chin spoiler, equidistantly to arrange backward, it is be arranged in parallel between each wing plate, and set between baffle upper plate and chin spoiler and drag guiding principle reinforcing plate, and it is connected with each wing plate and is combined into the web plate main body of a low aspect ratio structure, overall formula in form of a grid.The present invention can give full play to high aspect ratio wing plate induced drag is low, lift-drag ratio high advantage while, have and used suitable for different gross ton fishing boats, the operation of different water levels water body, the advantages of hydrodynamic efficiency is high.
Description
Technical field
The invention belongs to sea fishery fishing tool technical field, more particularly to a kind of upright grid type web plate.
Background technology
Web plate is the important accessory in single boat trawl, and its main function is the horizontal expansion for realizing netting gear.To different water levels
Trawlnet for, web plate also functions to netting gear settler or realizes the effect of netting gear vertical opening.World's trawl-net fishing uses at present
More web plate type has rectangle, ellipse, V-arrangement, vertical（High aspect ratio）, vertical type curved face V-arrangement, slat formula etc..The work of web plate
Make that principle is similar with wing, the size of aspect ratio has a significant impact to the operating efficiency of web plate.When using high aspect ratio, in net
Reduction is streamed at plate both ends, and the induced drag of web plate reduces, and improves lift-drag ratio, and then improve the efficiency of web plate, example
Such as, vertical type curved face shape, vertical type curved face V-arrangement, hyperboloid web plate, such web plate are used for large-scale middle and bottom layers trawlnet, and web plate drags
Drag speed.And for medium and small trawler, limited by ship towing tension, deck working area, netting gear specification etc.,
Low aspect ratio web plate typically is used, for example, rectangle, chevron mesh plate etc., the hydrodynamic efficiency of such web plate is relatively low, is carried on the back in entrainment
A large amount of vortex are produced afterwards, so as to the expansionary force for increasing board drag He reducing web plate, meanwhile, between such web plate and seabed
Friction it is larger, stir a large amount of mud mists in sea bottom surface during towing, form road road vestige, greatly destroy inhabiting for marine organisms
Environment.
Trawlnet is the fish production mode of a high energy consumption, particularly single boat trawl, and web plate is while its effect is played
The resistance of whole gear system is substantially increased again.Therefore, how to improve trawlnet trawling efficiency, reduce energy consumption and cost, be
Mesh-plate structure designs and the difficult point of fit on, and the developing direction of single boat trawl fishery.
The content of the invention
The purpose of the present invention is to design a kind of upright grid of the low aspect ratio combined by multiple high aspect ratio wing plates
Formula web plate, have and used suitable for different gross ton fishing boats, the operation of different water levels water body, hydrodynamic efficiency is high, web plate back vortex
The advantages of few.
The purpose of the present invention is achieved through the following technical solutions：It by baffle upper plate, high aspect ratio wing plate, drag guiding principle strengthen
Plate, chin spoiler are formed, it is characterized in that baffle upper plate is identical with chin spoiler specification, front end is wedge shape, and rear end is arc, is above led
Multiple high aspect ratio wing plates are set between flowing plate and chin spoiler, and the upper and lower side of high aspect ratio wing plate is led along baffle upper plate with
The angle of flowing plate front end wedge shape is connected with baffle upper plate and chin spoiler, parallel between each wing plate to set equidistantly to arrange backward
Put, overall formula in form of a grid, set between baffle upper plate and chin spoiler and drag guiding principle reinforcing plate, and be connected with each wing plate.
Compared with prior art, remarkable result of the invention is：
1）A kind of upright grid type web plate is combined using multiple high aspect ratio wing plates, can give full play to high aspect ratio wing plate
Induced drag is low, the high advantage of lift-drag ratio, improves web plate hydrodynamic performance；
2）A kind of upright grid type web plate uses the web plate master that multiple high aspect ratio wing plates are combined into a low aspect ratio
Body, holding low aspect ratio web plate mobility is good, the convenient advantage of operation；
3）Multiple high aspect ratio wing plates are combined into the web plate of a low aspect ratio by a kind of upright grid type web plate, can basis
Fishing boat, netting gear condition adjustment high aspect ratio wing plate number and setting angle to adapt to different trawling requirements；
4）A kind of upright grid type web plate is under the conditions of equal expansionary force is obtained, overall dimension miniaturization, so both can be with
Meet in table, middle level water body operation the needs of to board spread force, the use need of medium and small trawler can be met again
Ask；
5）A kind of upright grid type web plate is in operation process, by the guide functions that the gap between grid is played, phase
Than the influence that conventional low aspect ratio web plate can reduce web plate back vortex, higher hydrodynamic(al) can be maintained in wider range of angles of attack
Power performance.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention；
Fig. 2 is the inner side view of the present invention；
Fig. 3 is the outer side view of the present invention.
Label declaration：1：Baffle upper plate, 2：High aspect ratio wing plate, 3：Drag guiding principle reinforcing plate, 4：Chin spoiler.
Embodiment
Embodiments of the invention are described in further detail below in conjunction with brief description of the drawings, but the present embodiment is not used to limit
The system present invention, every similar structure using the present invention and its similar change, all should be included in protection scope of the present invention.
As shown in Fig. 1 to Fig. 3, a kind of upright grid type web plate that the embodiment of the present invention is provided, its by baffle upper plate 1,
High aspect ratio wing plate 2, drag guiding principle reinforcing plate 3, chin spoiler 4 is formed, set at equal intervals between baffle upper plate 1 and chin spoiler 4
There are multiple high aspect ratio wing plates 2, drag guiding principle reinforcing plate 3 and be sequentially connected with each high aspect ratio wing plate 2, form a low aspect ratio structure
Web plate main body.
The baffle upper plate 1 is identical with the specification of chin spoiler 4, and one end is wedge shaped, and the other end is curved.
The specification of each high aspect ratio wing plate 2 is identical, and board face structure is rectangle.
It is described to drag in guiding principle reinforcing plate 3 equipped with draging guiding principle support and identical with the specification of baffle upper plate 1, chin spoiler 4.
As shown in Figure 1 to Figure 3, high aspect ratio wing plate induced drag is low, and lift-drag ratio is high, is favorably improved the expansion of web plate
Power, after multiple high aspect ratio wing plates 2 to be combined into the web plate main body of a low aspect ratio, and can improve web plate mobility and
Operation convenience.
As shown in Figure 1 to Figure 3, by adjusting the distance between each high aspect ratio wing plate 2, and baffle upper plate 1, lower water conservancy diversion
The angle of the front of plate 4 wedge shape, the influence of control web plate back vortex.
As shown in Figure 1 to Figure 3, the quantity of the high aspect ratio wing plate 2 in the present invention can be according to practical structures or intensity needs
3-10 are set, guiding principle reinforcing plate 3 is draged and can be set 1-3.
Claims (3)
- A kind of 1. upright grid type web plate, it is characterised in that：It by baffle upper plate (1), high aspect ratio wing plate (2), drag guiding principle strengthen Plate (3), chin spoiler (4) are formed, and the baffle upper plate (1) is identical with chin spoiler (4) specification, and front end is wedge shaped, and rear end is in Arc, equidistantly be arranged in parallel multiple high aspect ratio wing plates (2) between baffle upper plate (1) and chin spoiler (4), described major The specification of aspect ratio wing plate (2) is identical, and board face structure is rectangle, and the upper and lower side of high aspect ratio wing plate (2) is along baffle upper plate (1) It is connected with the angle of chin spoiler (4) front end wedge shape with baffle upper plate (1) and chin spoiler (4), in baffle upper plate (1) with Setting drags guiding principle reinforcing plate (3) and is sequentially connected one low aspect ratio structure of composition with each high aspect ratio wing plate (2) between deflector (4) Web plate main body, overall formula in form of a grid.
- 2. a kind of upright grid type web plate according to claim 1, it is characterised in that drag to be equipped with guiding principle reinforcing plate (3) and drag Guiding principle support, and it is identical with the specification of baffle upper plate (1), chin spoiler (4).
- 3. a kind of upright grid type web plate according to claim 1, it is characterised in that the high aspect ratio wing plate (2) Quantity is arranged to 3-10, and the quantity for draging guiding principle reinforcing plate is arranged to 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261861.XA CN104920312B (en) | 2015-05-21 | 2015-05-21 | A kind of upright grid type web plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261861.XA CN104920312B (en) | 2015-05-21 | 2015-05-21 | A kind of upright grid type web plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104920312A CN104920312A (en) | 2015-09-23 |
| CN104920312B true CN104920312B (en) | 2018-01-05 |
Family
ID=54108030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261861.XA Expired - Fee Related CN104920312B (en) | 2015-05-21 | 2015-05-21 | A kind of upright grid type web plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104920312B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110754447B (en) * | 2019-09-04 | 2021-10-08 | 浙江省海洋水产研究所 | Suspended screen plate for single-ship-bottom trawl |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161351A (en) * | 1984-07-10 | 1986-01-15 | Kevin Joseph Mcloughlin | Otter boards |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU561544A1 (en) * | 1974-09-09 | 1977-06-15 | Калининградский технический институт рыбной промышленности и хозяйства | Trawl board |
| JPH0488260U (en) * | 1990-12-06 | 1992-07-31 | ||
| CN2817427Y (en) * | 2005-08-26 | 2006-09-20 | 中国水产科学研究院东海水产研究所 | Rectangular curved otter board with double seams |
| IS2635B (en) * | 2007-11-20 | 2010-06-15 | Hampidjan Hf | Improved trawl closure |
| CN202890254U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Bottom layer trawl board |
-
2015
- 2015-05-21 CN CN201510261861.XA patent/CN104920312B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161351A (en) * | 1984-07-10 | 1986-01-15 | Kevin Joseph Mcloughlin | Otter boards |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104920312A (en) | 2015-09-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20200521 |