CN102897291A - Large-field-angle trawling gear - Google Patents
Large-field-angle trawling gear Download PDFInfo
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- CN102897291A CN102897291A CN2012103920069A CN201210392006A CN102897291A CN 102897291 A CN102897291 A CN 102897291A CN 2012103920069 A CN2012103920069 A CN 2012103920069A CN 201210392006 A CN201210392006 A CN 201210392006A CN 102897291 A CN102897291 A CN 102897291A
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- suspension board
- trawling
- angle
- positioning
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Abstract
The invention discloses a large-field-angle trawling gear. In the Large-field-angle trawling gear, a steering device which can be used for driving a water body to change the heading direction of a suspension plate is inserted into the suspension plate; the suspension plate further is connected with a trawling rope; the free end of the trawling rope is connected to a trawling ship in which a positioning device is arranged; the top of the suspension plate is connected with a floating body; and a positioning antenna is arranged on a floating body. The positioning device on the trawling ship is communicated with the positioning antenna, and the relative positions of the positioning device and the floating body are calculated through triangular positioning, so that decision information is provided for the running of the steering device. The running of the steering device is controlled according to the positioning of the positioning device for changing of the heading direction of the suspension plate in water and changing the field angle of the trawling rope connected with a trawling net behind, so that the size and the opening direction of the mouth of the trawling net are controlled indirectly, the aim of operating one trawling net by using a single ship is fulfilled, more energy is saved, and the efficiency is higher. The large-field-angle trawling gear has the advantages of novel structure, rapid change in the field angle, saving in energy and high efficiency.
Description
Technical field
The present invention relates to a kind of trawlnet auxiliary traction instrument, relates in particular to the large angle trawling gear.
Background technology
Trawlboat is by can divide two fishing boats that drag, singly drag and double as by mode of operation.Wherein, parallel the closing of two ships dragged 1 net of resisting and delaying during the two boat trawler, pair operation.The general job deck is at the middle front part of ship, superstructure in after, the cabin is rear, fish hold is front.20～40 meters of captains, 60～1000 kilowatts of main engine powers.Parallel shrimp trawl net relates to single ship shrimp trawlnet, needs to solve the technical matters of single trawler shrimping netting gear.The technical scheme of this invention comprises net and web plate, it is characterized in that adopting skid that the net of two top same specifications is connected in parallel, the upper guiding principle of every top net, lower guiding principle hanging ratio are all in the 0.5-0.7 scope, sleeve net length and net gap perimeter ratio 22%-30%, body net length and net gap perimeter ratio 36%-40%, square length and net gap perimeter ratio 6%-10%, the force rate of drifting along example 30%-80%; The employing aspect ratio is 0.41 rectangle plane web plate; Skid becomes the spider shape, and drags iron at bottom welding, and the front portion is connected with drags the guiding principle fixing base, and the welding of spider rear portion is two fork guiding principle plates up and down.Yet it controls inconvenience, and efficient is lower.
Summary of the invention
The object of the invention is to provides a kind of novel structure, subtended angle to change large angle trawling gear rapid, efficient energy-saving for prior art.
The present invention solves the problems of the technologies described above the technical scheme that adopts: the large angle trawling gear, comprise the suspension board that is connected with trawlnet, and wherein: suspension board runs through to be provided with and can promote water body and make suspension board change the steering hardware of working direction; Suspension board also is connected with tow strap; The free end of tow strap can be connected and installed with the towboat of registration device; The suspension board top is connected with buoyancy aid, and on the buoyancy aid positioning antenna is installed.Registration device on the towboat is communicated by letter with positioning antenna, goes out the relative position of registration device and buoyancy aid by the triangle location Calculation, and then provides decision information for the running of steering hardware.Suspension board generally is positioned on the water surface, also can be as required by the water filling of buoyancy aid submerged.The running of steering hardware is according to the registration device positioning control, to change the direct of travel of suspension board in water, and then change connects the subtended angle of the tow strap of rear trawlnet, thereby the network interface of indirectly control trawlnet size and the direction of throwing the net, realize the purpose of a trawlnet of single ship operation, more energy-conservation, efficient is higher.
For optimizing technique scheme, Adopts measure also comprises: steering hardware is to run through main screw and the secondary screw propeller that can promote by ahead running and reversing control suspension board orientation that is arranged on the suspension board.The cooperation running of main screw and secondary screw propeller can change the lateral attitude of suspension board in water, and then changes the direct of travel of suspension board in water.Suspension board arranges when operation in pairs, main screw on the suspension board is sprayed water laterally, secondary screw propeller is sprayed water to the inside, so that in traveling process, suspension board is towards movement outside, and then two distances between the suspension board are strengthened along with the increasing of travel distance, so that the network interface of trawlnet progressively magnifies.
It is first that one end of suspension board is shaped with the plate that is acute angle; Suspension board has the hollow cavity structure, and is provided with the discharge port of advancing that can adjust displacement.One end of suspension board is shaped with the plate head that is acute angle can reduce resistance in the traveling process, and the hollow cavity structure that suspension board has changes buoyancy by the water filling draining.
In the use procedure, towboat connects two symmetrically arranged suspension boards through a pair of tow strap.Suspension board connects trawlnet through tow strap.When advancing, towboat drags suspension board, the locus that a pair of positioning antenna on each suspension board received and calculated registration device on suspension board and the towboat according to the triangle location.After obtaining the relative tertiary location of each suspension board and towboat, the telecommand of sending according to the operator increases or reduces two distances between the suspension board.For example, when needs reduce fast between two suspension boards apart from the time, the main screw on the suspension board and secondary screw propeller be water spray laterally simultaneously, promotes the inside quick travel of suspension board.Also can control main screw and secondary screw propeller towards different side spray water, form torsion, change the direct of travel of suspension board.
Because large angle trawling gear of the present invention, adopted suspension board to run through to be provided with to promote water body and make suspension board change the steering hardware of working direction; Suspension board also is connected with tow strap; The free end of tow strap can be connected and installed with the towboat of registration device; The suspension board top is connected with buoyancy aid, and on the buoyancy aid positioning antenna is installed.Registration device on the towboat is communicated by letter with positioning antenna, goes out the relative position of registration device and buoyancy aid by the triangle location Calculation, and then provides decision information for the running of steering hardware.Suspension board generally is positioned on the water surface, also can be as required by the water filling of buoyancy aid submerged.The running of steering hardware is according to the registration device positioning control, to change the direct of travel of suspension board in water, and then change connects the subtended angle of the tow strap of rear trawlnet, thereby the network interface of indirectly control trawlnet size and the direction of throwing the net, realize the purpose of a trawlnet of single ship operation, more energy-conservation, efficient is higher.Thereby the present invention has novel structure, subtended angle changes advantage rapid, efficient energy-saving.
Description of drawings
Fig. 1 is embodiment of the invention master TV structure scheme drawing;
Fig. 2 is embodiment of the invention mode of operation schematic perspective view.
The specific embodiment
Below in conjunction with attached embodiment the present invention is described in further detail.
Drawing reference numeral explanation: suspension board 1, plate first 1a, main screw 11, secondary screw propeller 12, advance discharge port 13, buoyancy aid 2, positioning antenna 21, trawlnet 3, tow strap 4, registration device 5.
Embodiment: referring to figs. 1 through Fig. 2, the large angle trawling gear comprises the suspension board 1 that is connected with trawlnet 3, it is characterized in that: suspension board 1 runs through to be provided with and can promote water body and make suspension board 1 change the steering hardware of working direction; Suspension board 1 also is connected with tow strap 4; The free end of tow strap 4 can be connected and installed with the towboat of registration device 5; Suspension board 1 top is connected with buoyancy aid 2, and on the buoyancy aid 2 positioning antenna 21 is installed.Registration device 5 on the towboat is communicated by letter with positioning antenna 21, goes out the relative position of registration device 5 and buoyancy aid 2 by the triangle location Calculation, and then provides decision information for the running of steering hardware.Suspension board 1 generally is positioned on the water surface, also can be as required by the water filling of buoyancy aid 2 submerged.The running of steering hardware is according to registration device 5 positioning control, to change the direct of travel of suspension board 1 in water, and then change connects the subtended angle of the tow strap 4 of rear trawlnet, thereby the network interface of indirectly control trawlnet size and the direction of throwing the net, realize the purpose of a trawlnet of single ship operation, more energy-conservation, efficient is higher.
Steering hardware is to run through main screw 11 and the secondary screw propeller 12 that can promote by ahead running and reversing control suspension board 1 orientation that is arranged on the suspension board 1.The cooperation running of main screw 11 and secondary screw propeller 12 can change the lateral attitude of suspension board 1 in water, and then changes the direct of travel of suspension board 1 in water.Suspension board 1 arranges when operation in pairs, main screw 11 on the suspension board 1 is sprayed water laterally, secondary screw propeller 12 is sprayed water to the inside, so that in traveling process, suspension board 1 is towards movement outside, and then two distances between the suspension board 1 are strengthened along with the increasing of travel distance, so that the network interface of trawlnet progressively magnifies.
One end of suspension board 1 is shaped with the first 1a of the plate that is acute angle; Suspension board 1 has the hollow cavity structure, and be provided with can adjust displacement advance discharge port 13.One end of suspension board 1 is shaped with the first 1a of the plate that is acute angle can reduce resistance in the traveling process, and the hollow cavity structure that suspension board 1 has is by water filling draining change buoyancy.
In the use procedure, towboat connects two symmetrically arranged suspension boards 1 through a pair of tow strap 4.Suspension board 1 connects trawlnet 3 through tow strap 4.When advancing, towboat drags suspension board 1, the locus that a pair of positioning antenna 21 on each suspension board 1 received and calculated registration device 5 on suspension board 1 and the towboat according to the triangle location.After obtaining the relative tertiary location of each suspension board 1 and towboat, the telecommand of sending according to the operator increases or reduces two distances between the suspension board 1.For example, when needs reduce fast between two suspension boards 1 apart from the time, the main screw 11 on the suspension board 1 and secondary screw propeller 12 be water spray laterally simultaneously, promotes suspension board 1 inside quick travel.Also can control main screw 11 and secondary screw propeller 12 towards different side spray water, form torsion, change the direct of travel of suspension board 1.
Although described the present invention in conjunction with preferred embodiment; so it is not to limit the present invention; any those skilled in the art; in the situation that does not break away from the spirit and scope of the present invention; can implement to the theme of listing displacement and the modification of various changes, coordinator here, so protection scope of the present invention is as the criterion when looking the claim restricted portion that proposes.
Claims (3)
1. the large angle trawling gear comprises the suspension board (1) that is connected with trawlnet (3), it is characterized in that: described suspension board (1) runs through to be provided with and can promote water body and make suspension board (1) change the steering hardware of working direction; Described suspension board (1) also is connected with tow strap (4); The free end of described tow strap (4) can be connected and installed with the towboat of registration device (5); Described suspension board (1) top is connected with buoyancy aid (2), and on the described buoyancy aid (2) positioning antenna (21) is installed.
2. large angle trawling gear according to claim 1 is characterized in that: described steering hardware is for running through main screw (11) and the secondary screw propeller (12) that can promote by ahead running and reversing control described suspension board (1) orientation that is arranged on the described suspension board (1).
3. large angle trawling gear according to claim 2 is characterized in that: an end of described suspension board (1) is shaped with the plate first (1a) that is acute angle; Described suspension board (1) has the hollow cavity structure, and be provided with can adjust displacement advance discharge port (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210392006.9A CN102897291B (en) | 2012-10-16 | 2012-10-16 | Large angle trawling gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210392006.9A CN102897291B (en) | 2012-10-16 | 2012-10-16 | Large angle trawling gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102897291A true CN102897291A (en) | 2013-01-30 |
| CN102897291B CN102897291B (en) | 2015-11-25 |
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ID=47569855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210392006.9A Expired - Fee Related CN102897291B (en) | 2012-10-16 | 2012-10-16 | Large angle trawling gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN102897291B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108839762A (en) * | 2018-06-26 | 2018-11-20 | 浙江海洋大学 | A kind of support construction for trawlnet cantilever crane |
| CN108860486A (en) * | 2018-06-26 | 2018-11-23 | 浙江海洋大学 | A kind of structure improved boom type trawler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU297228A1 (en) * | 1969-02-24 | 1976-02-15 | Калининградский технический институт рыбной промышленности и хозяйства | Fishing gear |
| US4045901A (en) * | 1976-09-29 | 1977-09-06 | Augusto Prudenzi | Trawler doors |
| GB2147182A (en) * | 1983-10-03 | 1985-05-09 | Winston Phillips | Improvements in or relating to trawl doors |
| CA2060443A1 (en) * | 1992-01-31 | 1993-08-01 | Christopher N. Tupper | Trawl cable vibration meter |
| 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 |
| CN202896843U (en) * | 2012-10-16 | 2013-04-24 | 浙江海洋学院 | Energy-saving trawl net-dragging device |
-
2012
- 2012-10-16 CN CN201210392006.9A patent/CN102897291B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU297228A1 (en) * | 1969-02-24 | 1976-02-15 | Калининградский технический институт рыбной промышленности и хозяйства | Fishing gear |
| US4045901A (en) * | 1976-09-29 | 1977-09-06 | Augusto Prudenzi | Trawler doors |
| GB2147182A (en) * | 1983-10-03 | 1985-05-09 | Winston Phillips | Improvements in or relating to trawl doors |
| CA2060443A1 (en) * | 1992-01-31 | 1993-08-01 | Christopher N. Tupper | Trawl cable vibration meter |
| 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 |
| CN202896843U (en) * | 2012-10-16 | 2013-04-24 | 浙江海洋学院 | Energy-saving trawl net-dragging device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108839762A (en) * | 2018-06-26 | 2018-11-20 | 浙江海洋大学 | A kind of support construction for trawlnet cantilever crane |
| CN108860486A (en) * | 2018-06-26 | 2018-11-23 | 浙江海洋大学 | A kind of structure improved boom type trawler |
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| Publication number | Publication date |
|---|---|
| CN102897291B (en) | 2015-11-25 |
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