CN205455459U - Euphausia superba trawlnet horizontal expansion device - Google Patents
Euphausia superba trawlnet horizontal expansion device Download PDFInfo
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- CN205455459U CN205455459U CN201620179151.2U CN201620179151U CN205455459U CN 205455459 U CN205455459 U CN 205455459U CN 201620179151 U CN201620179151 U CN 201620179151U CN 205455459 U CN205455459 U CN 205455459U
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Abstract
The utility model provides an euphausia superba trawlnet horizontal expansion device adopts vertical " V " type curved surface otter board, and " V " type curved surface otter board is by last fork guiding principle board, preceding guide plate, and back guide plate drags the guiding principle arm -tie, and the guiding principle board is pitched down to the inter -plate reinforcing plate, drags iron to attach the board, drags iron, and the guiding principle board is draged to the centre, and guiding principle board draw hole is pitched on, to front principal plane board, back interarea board, last balance plate pitches guiding principle board draw hole component under, and characterized by " V " type curved surface aspect ratio is >= 2.7, the centre is draged on the guiding principle board welding and is draged the guiding principle arm -tie, drags the guiding principle arm -tie and becomes vertical and set up, and it has 5 longitudinal arrangement to drag the guiding principle draw hole to go up to open, drags the guiding principle draw hole and breaks out to connect and drag the guiding principle through draging the guiding principle, pitching guiding principle board rear side on " V " type curved surface otter board and being equipped with 6 fork guiding principle board draw holes, the rear side of pitching the guiding principle board down also is equipped with 6 fork guiding principle board draw holes pitches the guiding principle board and breaks out to correspond with upper and lower two strands fork guiding principles through the fork guiding principle respectively with the fork guiding principle board draw hole of pitching the guiding principle board down on, and be connected. This device specially adapted hangs down and drags fast euphausia superba trawlnet.
Description
Technical field
This utility model relates to the horizontal expansion device of Antarctic krill trawlnet.
Background technology
The fishing boat trawlnet horizontal expansion device fishing for Antarctic krill mostly is vertical type curved face web plate, and structure is relatively easy, relatively
High towing speed can obtain bigger horizontal expansion under (2～3m/s), meets the needs fishing for trip speed pelagic fishes faster,
But then it is difficult to when towing speed is relatively low obtain preferable horizontal expansion effect.Krill, with planktonic algae for food, belongs to zooplankton,
Swimming rate is slow, and poly is in relatively shoaling layer.For the life characteristic of krill, the netting gear fishing for krill is different from traditional
Trawlnet at the middle and upper levels, need to have the feature of high expansion under low towing speed state.Specialty krill trawlnet belongs to shallow surface trawl, network interface
Relatively big, towing speed relatively low (about 1m/s), for krill trawlnet, on the premise of not affecting fishing efficiency, reduces
Towed speed can reduce the energy consumption that net resistance causes, and reduces too fast krill the bulk damage caused of towing speed, meets shallow top layer
The needs of Antarctic krill trawling, improve krill trawling catching rate.
Utility model content
This utility model purpose is a kind of Antarctic krill trawlnet horizontal expansion device of design, pitches guiding principle by adjusting on fork guiding principle plate
Link position, regulates the operation angle of attack, changes the spreading performance of device, to obtain ideal liter expansionary force and preferable working performance.
The technical solution of the utility model use vertical " V " type curved netting plate, " V " type curved netting plate by upper fork guiding principle plate,
Front flow guiding plate, rear deflector, drag guiding principle arm-tie, reinforcing plate between plate, lower fork guiding principle plate, drags ferrum attached plate, drags ferrum, centre to drag guiding principle
Plate, front principal plane plate, rear main panel, upper balance plate, upper fork guiding principle plate pulling eye, lower fork guiding principle plate pulling eye forms, it is characterized in that " V "
Type curved netting plate aspect ratio is >=2.7；On middle warp plate, guiding principle arm-tie is draged in welding, drags guiding principle arm-tie and becomes longitudinally disposed, above opens
There are 5 longitudinal arrangements to drag guiding principle pulling eye, drag guiding principle pulling eye by draging guiding principle shackle connection and drag guiding principle；The upper fork guiding principle of " V " type curved netting plate
Being provided with 6 fork guiding principle plate pulling eyes on rear side of plate, the rear side of lower fork guiding principle plate also is provided with 6 fork guiding principle plate pulling eyes, upper fork guiding principle plate and lower fork
The fork guiding principle plate pulling eye of guiding principle plate connects by fork guiding principle shackle is corresponding with upper and lower two strands of fork guiding principles respectively.
This utility model is through repeatedly wind tunnel test optimization and verifies, double-deck deflector and double-deck main panel structure can make device
Producing good hydrodynamic performance, lift coefficient is high, and maximum lift coefficient is 2.628 (angles of attack 32.5 °), rises higher most
Resistance ratio is 5.803 (angles of attack 17.5 °), and more identical structural parameters monolayer main panel improves more than 40%, has good
Traw mouth horizontal expansion effect；Utilize difference to drag guiding principle pulling eye to connect and drag guiding principle adjustable front portion and drag the angle of pull of guiding principle and web plate
Degree, the adjusting apparatus inside and outside heeling condition in water, change the operating water depth of horizontal expansion device；Trawlnet wing gang rope is even
Connecing the different fork guiding principle pulling eye adjustable operation angle of attack, can pitch guiding principle link position by adjusting on fork guiding principle plate, controlling range of angles of attack is
22 °～33 °, the angle of the regulation operation angle of attack, change the horizontal expansion performance of device, lift-drag ratio coefficient improves, and can obtain
Obtain preferable working performance, be particularly suitable for low towing speed Antarctic krill trawlnet.
Accompanying drawing explanation
Fig. 1 is horizontal expansion device schematic perspective view.
Fig. 2 is horizontal expansion device front view.
Fig. 3 is horizontal expansion device rearview.
Fig. 4 is horizontal expansion device left view.
Fig. 5 is horizontal expansion device right view.
Fig. 6 is horizontal expansion device top view.
Fig. 7 is horizontal expansion device upward view.
Fig. 8 is horizontal expansion device deflector and main panel structural parameters figure.
Fig. 9 is that guiding principle arm-tie figure is draged in horizontal expansion device front portion.
Figure 10 is that horizontal expansion device drags ferrum figure.
Detailed description of the invention
Seeing accompanying drawing 1-Figure 10, vertical " V " type curved netting plate is by upper fork guiding principle plate 1, front flow guiding plate 2, rear deflector
3, drag guiding principle arm-tie 4, reinforcing plate 5 between plate, lower fork guiding principle plate 6, drags ferrum attached plate 7, drags ferrum 8, middle warp plate 9, front master
Panel 10, rear main panel 11, upper balance plate 12, upper fork guiding principle plate pulling eye 13, lower fork guiding principle plate pulling eye 14, horizontal reference
Line 15, vertical reference line 16 forms；Vertical " V " type curved netting plate aspect ratio is >=2.7 (with vertical " V " type
Curved netting plate is with span 6180mm, as a example by wing chord 2281mm), " V " type folder of " V " type curved netting plate
Angle is 170 °, and during operation, 2 pieces of symmetrical mounting concave surfaces are relative, parallel towing, the mis-cut angle e of device horizontal direction
Equal with the design angle d of front principal plane plate, it is 6 °, the longitudinal mis-cut angle f on the right side of main panel is 6 °.
Upper fork guiding principle plate 1, thickness of slab 20mm, for the first half stress gripper shoe of horizontal expansion device, water conservancy diversion before welding on the downside of it
Plate 2 and rear deflector 3, front principal plane plate 10 and rear main panel 11；The upper balance plate 12 of welding on the upside of upper fork guiding principle plate；Upper fork
Fork guiding principle plate pulling eye 13 is had on rear side of guiding principle plate；Several lightening core is opened for subtracting on the premise of not affecting fork guiding principle plate intensity
Weight amount.
Front flow guiding plate 2, thickness of slab 10mm, curvature is 12%, the arc string of front flow guiding plate 2 and angle a of horizontal datum 15
It is 30 °, the long 436mm of feeding plate, highly 2720mm, 2 pieces altogether symmetrical above and below.
Rear deflector 3, thickness of slab 10mm, curvature is 12%, the arc string of rear deflector 3 and the angle of horizontal datum 15
B is 25 °, the long 436mm of feeding plate, highly 2720mm, 2 pieces altogether symmetrical above and below.
Drag guiding principle arm-tie 4, thickness of slab 20mm, on ship, drag the connection of guiding principle and horizontal expansion device, drag guiding principle arm-tie and be welded in
On middle warp plate 9 between rear deflector 3 and rear main panel 11, drag guiding principle arm-tie and become longitudinally disposed, drag guiding principle arm-tie
On have 5 longitudinal arrangement pulling eyes, the upper angle of declination of horizontal expansion device can be adjusted by connecting different pulling eye, to adjust
The operation water depth of regulating device, draging guiding principle arm-tie can increase layer 2-3 parallel reinforcing plates up and down as support, reinforcement
Plate is welded on rear deflector 3 and rear main panel 11.
Reinforcing plate 5 between plate, are welded between deflector and deflector, deflector and main panel and main panel and main panel
Support and intensity reinforcing plate, its configuration space is 500mm, perforate it on, alleviates heavily on the premise of not affecting intensity
Amount.
Lower fork guiding principle plate 6, thickness of slab 20mm, for the lower half stress gripper shoe of horizontal expansion device, it welds front flow guiding plate
2 drag ferrum attached plate 7, the trailing edge of lower fork guiding principle plate to open with rear deflector 3, front principal plane plate 10 and rear main panel 11, downside welding
There is lower fork guiding principle plate pulling eye 14.Lower fork guiding principle plate is opened several lightening core on the premise of not affecting intensity and is alleviated weight.
Dragging ferrum attached plate 7, thickness of slab 10mm, for doubling plate, middle ware supports away from being welded with steel bar shaped between 87mm, plate, uses
In supporting two-ply, it is to avoid deform when dragging ferrum 8 to fix, the long 2225mm of feeding plate, highly 300mm, 2 pieces altogether, flat
Below row welding and lower fork guiding principle plate 6.Bottom drags ferrum attached plate to drag ferrum for fixing, makes device decentralization, increases
Stability, and counterweight can be regulated according to operation water layer demand, to control the operation water depth of device.
Drag ferrum 8, channel-section steel structure, be stuck in and drag ferrum attached plate and be bolted, need to adjust weight and quantity according to counterweight.
Middle warp plate 9, thickness of slab 30mm, for the center stressed gripper shoe of horizontal expansion device, it welds front flow guiding plate
2 with rear deflector 3, front principal plane plate 10 and rear main panel 11, and weld and drag guiding principle arm-tie 4, in the premise not affecting intensity
Under open several hole and alleviate weight.
Front principal plane plate 10, thickness of slab 10mm, curvature is 12%, the arc string of front principal plane plate 10 and the angle of horizontal datum 15
Degree d is 6 °, the long 876mm of feeding plate, highly 2720mm, 2 pieces altogether symmetrical above and below.
Rear main panel 11, thickness of slab 10mm, curvature is 14%, the arc string of rear main panel 11 and the angle of horizontal datum 15
Degree c is 18 °, the long 1383mm of feeding plate, highly 2720mm, 2 pieces altogether symmetrical above and below.Front principal plane plate 10 with after
Main panel 11 is parallel-plate, and the connecting line of 2 pieces of main panel right-hand member end points is with the angle of vertical reference line 16 as design tiltedly
Corner cut degree d, is 6 °.
Upper balance plate 12, thickness of slab 10mm, curvature is 12%, the arc string of upper balance plate 12 and the angle of horizontal datum 15
Degree is 6 °, the long 2266mm of feeding plate, highly 300mm, 1 piece altogether.For ensureing device entirety stability, design
Upper balance plate is for balancing the hydrodynamic force dragging ferrum attached plate to produce, and can produce expansionary force.
Upper fork guiding principle plate pulling eye 13, opens on rear side of upper fork guiding principle plate 1, and totally 6 holes, hole dimension is diameter 50mm, and hole is in the heart
Increase to plate edge away from by the plate heart, drag operation punching can be controlled by being simultaneously connected with position, different hole corresponding to upper lower fork guiding principle plate
Angle, it is thus achieved that preferably expansionary force, for increasing intensity, can be with the steel plate welding one layer of 5-10mm at pulling eye, plate face size
With reference to opening area, suitably extend.
Lower fork guiding principle plate pulling eye 14, opens in the rear side of lower fork guiding principle plate 6, and its quantity specifications and size are same as fork guiding principle plate and drag guiding principle
Pulling eye 13.
Design level datum line 15, horizontal datum is for the design reference of apparatus structure predetermined angle, including deflector
With the design angle of main panel, the horizontal mis-cut angle of each impeller of device.
Vertical reference line 16, the setting reference of mis-cut angle on the right side of two-layer main panel.
This programme example not limit, in above-mentioned specification and size, applies also for similar type structure rational with change in size
Trawl board, at actually used 2 block assemblies needing symmetrical structure.
Claims (2)
1. an Antarctic krill trawlnet horizontal expansion device, uses vertical " V " type curved netting plate, " V " type
Curved netting plate, by upper fork guiding principle plate, front flow guiding plate, rear deflector, drags guiding principle arm-tie, reinforcing plate between plate, lower fork guiding principle plate,
Drag ferrum attached plate, drag ferrum, middle warp plate, front principal plane plate, rear main panel, upper balance plate, upper fork guiding principle plate pulling eye,
Lower fork guiding principle plate pulling eye forms, and it is characterized in that " V " type curved netting plate aspect ratio is >=2.7；Weld on middle warp plate
Connect and drag guiding principle arm-tie, drag guiding principle arm-tie and become longitudinally disposed, above have 5 longitudinal arrangements and drag guiding principle pulling eye, drag guiding principle pulling eye and lead to
Cross drag guiding principle shackle connect drag guiding principle；6 fork guiding principle plate pulling eyes it are provided with on rear side of the upper fork guiding principle plate of " V " type curved netting plate, under
The rear side of fork guiding principle plate also is provided with 6 fork guiding principle plate pulling eyes, and the fork guiding principle plate pulling eye of upper fork guiding principle plate and lower fork guiding principle plate leads to respectively
Cross fork guiding principle shackle and upper and lower two bursts of corresponding connections of fork guiding principles.
A kind of Antarctic krill trawlnet horizontal expansion device the most according to claim 1, is characterized in that " V "
" V " type angle of type curved netting plate is 170 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179151.2U CN205455459U (en) | 2016-03-09 | 2016-03-09 | Euphausia superba trawlnet horizontal expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179151.2U CN205455459U (en) | 2016-03-09 | 2016-03-09 | Euphausia superba trawlnet horizontal expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205455459U true CN205455459U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620179151.2U Expired - Fee Related CN205455459U (en) | 2016-03-09 | 2016-03-09 | Euphausia superba trawlnet horizontal expansion device |
Country Status (1)
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| CN (1) | CN205455459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105594670A (en) * | 2016-03-09 | 2016-05-25 | 中国水产科学研究院东海水产研究所 | Horizontal expansion device for Euphausia superba trawl net |
-
2016
- 2016-03-09 CN CN201620179151.2U patent/CN205455459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105594670A (en) * | 2016-03-09 | 2016-05-25 | 中国水产科学研究院东海水产研究所 | Horizontal expansion device for Euphausia superba trawl net |
| CN105594670B (en) * | 2016-03-09 | 2018-12-18 | 中国水产科学研究院东海水产研究所 | A kind of krill trawlnet horizontal expansion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160817 Termination date: 20170309 |