CN105216977A - A kind of Eriocheir sinensis Danish seine dredge - Google Patents
A kind of Eriocheir sinensis Danish seine dredge Download PDFInfo
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- CN105216977A CN105216977A CN201510729042.3A CN201510729042A CN105216977A CN 105216977 A CN105216977 A CN 105216977A CN 201510729042 A CN201510729042 A CN 201510729042A CN 105216977 A CN105216977 A CN 105216977A
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- danish seine
- eriocheir sinensis
- steel pipe
- dredge
- hawser
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Abstract
The present invention discloses a kind of Eriocheir sinensis Danish seine dredge, comprises Danish seine, fishes for hull; Described Danish seine comprises main push-towing rope rope, is connected to the bifurcated hawser of main cable end, the supporting steel pipe be connected with bifurcated hawser and the mesh bag be connected with supporting steel pipe; It is characterized in that: the bifurcated hawser of described Danish seine is provided with multiple withholding between mesh bag; Described fishing on hull is provided with suspension bracket, described suspension bracket is provided with the suspension hook of two liftings that alternately link.The present invention is under limited space condition, hung by Double-pulley device cycle alternation and rise trawlnet mesh bag, significantly reduce the manual work intensity of Eriocheir sinensis tradition trawl fishing ship between operational period, decrease the crewman's quantity needed for dredge, improve catching rate, save cost of human resources.
Description
Technical field
The invention belongs to fishery Fishing technology field, particularly relate to a kind of Eriocheir sinensis Danish seine dredge of improvement, this dredge can utilize the steel suspension bracket be fixed in the middle part of dredge foredeck lift by crane and transfer Eriocheir sinensis Danish seine mesh bag, and Eriocheir sinensis tradition trawl fishing ship is received the mechanization of net operation process.
Background technology
Eriocheir sinensis is one of the current Yangtze valley still migratory species that can form stable fishing season few in number, and after entering flood season, Eriocheir sinensis progressively carries out breeding migration to entrance of Changjiang River in annual the first tenday period of a month in the last ten-days period in September to October.Existing fishing style is mainly Danish seine operation, and Danish seine is made up of main push-towing rope rope, bifurcated hawser, supporting steel pipe and mesh bag.Eriocheir sinensis migration colony is mainly through river course deep trouth migration, therefore the main push-towing rope rope of existing Danish seine reaches tens of rice usually, paste the end in order to mesh bag can be made to remain in trawl process, existing mesh bag bottom margin hangs a large amount of iron pendant usually to increase mesh bag weight simultaneously.Traditional mode of operation is entirely manual work, uses manpower to pull main push-towing rope rope by crewman, after being drawn to main cable end, upwards pull bifurcated hawser by two people simultaneously, and to supporting steel pipe water outlet, two people upwards promote mesh bag until water outlet completely simultaneously.Above-mentioned operation process at substantial manpower, therefore every dredge needs usually outfit 4 blue or green strong labour powers.Nearly ten years, there is technological improvement to a certain degree in Eriocheir sinensis Danish seine dredge, in dredge foredeck front portion, irony roll shaft is housed, and uses small horsepower diesel engine band action roller shaft, utilize mechanical force to pull main push-towing rope rope, reduce manpower requirement.But owing to being bifurcated hawser below main cable end, two sections are individually fixed in supporting steel pipe two ends, and roll shaft cannot be utilized to promote.Therefore, up to the present, still bifurcated hawser, supporting steel pipe and mesh bag can only be pulled with manpower.With regard to the trawlnet structure used at present, as shown in Figure 2, height between bifurcated hawser 26 to supporting steel pipe A24 is about 3m, connection between supporting steel pipe A24 and supporting steel pipe B25 is pulled rope 27 length and is about 6m, below supporting steel pipe B25 is highly about 2m, namely the current distance using two labours to pull is more than 10m, still needs more personnel to drop into.In order to reduce the manual work's intensity in Eriocheir sinensis Danish seine operation process further, improving catching rate, reducing human cost, now proposing a kind of Eriocheir sinensis Danish seine dredge of improvement.
Summary of the invention
The object of the invention is the deficiency for existing fishing style, provides a kind of Eriocheir sinensis Danish seine dredge that can reduce artificial fishing intensity as far as possible, improve the improvement of catching rate.
The present invention for achieving the above object, adopts following technical scheme:
A kind of Eriocheir sinensis Danish seine dredge, comprises Danish seine, fishes for hull; Described Danish seine comprises main push-towing rope rope, is connected to the bifurcated hawser of main cable end, the supporting steel pipe be connected with bifurcated hawser and the mesh bag be connected with supporting steel pipe; It is characterized in that: the bifurcated hawser of described Danish seine is provided with multiple withholding between mesh bag; Described fishing on hull is provided with suspension bracket, described suspension bracket is provided with the suspension hook of two liftings that alternately link.
It is further characterized in that: described suspension bracket top is provided with two pulleys; Two described suspension hooks are driven by two-way winch, are connected respectively between two suspension hooks and two-way winch by two strand steel wire ropes, two strands of described steel ropes pulley described in pile warp respectively.
Further: two strands of described steel ropes are wound on described two-way winch bobbin respectively, and two strand steel wire rope coiling directions are contrary.
Preferred: described suspension bracket comprises two isometric steel pipes, the long 5m of described steel pipe, internal diameter 5cm; Being welded in respectively bottom two steel pipes fishes in the middle part of hull foredeck, and two steel pipe top welding, drift angles are 45 degree.
Described two-way winch controls rotating by two-direction switch.
The present invention has following advantage:
Under limited space condition, hung by Double-pulley device cycle alternation and rise trawlnet mesh bag, significantly reduce the manual work intensity of Eriocheir sinensis tradition trawl fishing ship between operational period, decrease the crewman's quantity needed for dredge, improve catching rate, save cost of human resources.
Accompanying drawing explanation
Fig. 1 is that the present invention fishes for hull schematic diagram.
Fig. 2 is Danish seine schematic diagram of the present invention.
Detailed description of the invention
A kind of Eriocheir sinensis Danish seine dredge comprises fishes for hull and Danish seine as shown in Figure 2.
Fish for as shown in Figure 1 in deck in ship structure and be provided with suspension bracket and hoisting mechanism.
(1) suspension bracket is made up of two isometric steel pipes 1, steel pipe 1 length 5m, internal diameter 5cm, and be fixed on the adapter plate 10 of fishing in the middle part of hull foredeck, two steel pipe 1 drift angles are 45 degree.
(2) two pulleys 2 are fixed with in the below of two steel pipe 1 top attachment points.
(3) hoisting mechanism comprises suspension hook 5 and suspension hook 6, steel rope 3 and steel rope 4, two-way winch 7.Steel rope 3 and the long 10m of steel rope 4, pile warp pulley 2, two strand steel wire rope one end assembles suspension hook 5 and suspension hook 6 respectively respectively, and the other end is fixed on the bobbin of two-way winch 7, and two strand steel wire rope coiling directions are contrary.
(4) two-way winch 7 is fixed on adapter plate 10, can switch rotation direction to promote or to transfer suspension hook 5 and suspension hook 6 as required, thus realize rising and the decline of trawlnet mesh bag by the two-direction switch 8 of winch.
Danish seine is as shown in Figure 2 withheld (withhold A21, withhold B22, withhold C23), two supporting steel pipes (supporting steel pipe A24, supporting steel pipe B25) and mesh bag 28 by main push-towing rope rope 20,26, three, bifurcated hawser and is formed.Bifurcated hawser 26 one end is connected to main cable end by withholding A21, and the other end is connected to supporting steel pipe A24 two ends.Supporting steel pipe A24 is connected by connection cable 27 with supporting steel pipe B25, and supporting steel pipe B25 connects mesh bag 28.Be connected to bifurcated hawser 26 in the middle part of connection cable 27 He on supporting steel pipe B25, bifurcated hawser 26 one end is respectively arranged with withholds B22 and withholds C23.
The present invention is used to carry out Eriocheir sinensis when fishing for, first the two-direction switch 8 of two-way winch 7 is opened, the suspension hook 5 being assemblied in steel rope 3 end is transferred to ship side height, caught on the bifurcated hawser shown in Fig. 2 and withheld A21, open two-way winch 7, steel rope 3 is made to be in winding state, thus the supporting steel pipe A24 that slings; Wait be positioned on connection cable 27 withhold B22 water outlet after, caught on by the suspension hook 6 being assemblied in steel rope 4 end and withhold B22, two-way winch 7 rotates backward, and continues to mesh bag 28 to be carried and makes it depart from the process declined at suspension hook 5 and withhold A21; Wait be positioned at above supporting steel pipe B25 withhold C23 water outlet after, will withhold 5 and catch on and withhold C23, two-way winch 7 switches rotation direction again, and mesh bag 28 is promoted to dredge foredeck; Two-way winch 7 switches rotation direction, transfers mesh bag 28 to deck.With the trawlnet used at present, mesh bag can be promoted to deck 3 times by circularly enhancing, even if the connection cable between part waters supporting steel pipe A and supporting steel pipe B is longer, only need increases on connection cable and withhold and can solve.
Claims (5)
1. an Eriocheir sinensis Danish seine dredge, comprises Danish seine, fishes for hull; Described Danish seine comprises main push-towing rope rope, is connected to the bifurcated hawser of main cable end, the supporting steel pipe be connected with bifurcated hawser and the mesh bag be connected with supporting steel pipe; It is characterized in that: the bifurcated hawser of described Danish seine is provided with multiple withholding between mesh bag; Described fishing on hull is provided with suspension bracket, described suspension bracket is provided with the suspension hook of two liftings that alternately link.
2. Eriocheir sinensis Danish seine dredge according to claim 1, is characterized in that: described suspension bracket top is provided with two pulleys; Two described suspension hooks are driven by two-way winch, are connected respectively between two suspension hooks and two-way winch by two strand steel wire ropes, two strands of described steel ropes pulley described in pile warp respectively.
3. Eriocheir sinensis Danish seine dredge according to claim 2, is characterized in that: two strands of described steel ropes are wound on described two-way winch bobbin respectively, and two strand steel wire rope coiling directions are contrary.
4. the Eriocheir sinensis Danish seine dredge according to any one of claim 1-3, is characterized in that: described suspension bracket comprises two isometric steel pipes, the long 5m of described steel pipe, internal diameter 5cm; Being welded in respectively bottom two steel pipes fishes in the middle part of hull foredeck, and two steel pipe top welding, drift angles are 45 degree.
5. the Eriocheir sinensis Danish seine dredge according to Claims 2 or 3, is characterized in that: described two-way winch controls rotating by two-direction switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729042.3A CN105216977B (en) | 2015-10-30 | 2015-10-30 | A kind of Eriocheir sinensis otter-trawl dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729042.3A CN105216977B (en) | 2015-10-30 | 2015-10-30 | A kind of Eriocheir sinensis otter-trawl dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105216977A true CN105216977A (en) | 2016-01-06 |
| CN105216977B CN105216977B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510729042.3A Active CN105216977B (en) | 2015-10-30 | 2015-10-30 | A kind of Eriocheir sinensis otter-trawl dredger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393174A (en) * | 2019-08-26 | 2019-11-01 | 丹东丰奥船业有限公司 | A kind of clam class finishing device |
| CN114271242A (en) * | 2021-12-24 | 2022-04-05 | 费香东 | Fishing corbicula fluminea drag harrow net device and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5644863A (en) * | 1993-05-06 | 1997-07-08 | Verburg; Abraham Leendert | Fishing gear for electric fishing |
| CN1724334A (en) * | 2004-07-24 | 2006-01-25 | 李群武 | Steel cable reel of hoister |
| CN201612092U (en) * | 2009-12-18 | 2010-10-27 | 张天明 | Novel deep-water fishing lift net |
| CN103478087A (en) * | 2013-09-23 | 2014-01-01 | 浙江海洋学院 | Fish catching device of fishing boat |
| CN205098422U (en) * | 2015-10-30 | 2016-03-23 | 中国水产科学研究院淡水渔业研究中心 | Ship is catched to eriocheir sinensis otter -trawl |
-
2015
- 2015-10-30 CN CN201510729042.3A patent/CN105216977B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5644863A (en) * | 1993-05-06 | 1997-07-08 | Verburg; Abraham Leendert | Fishing gear for electric fishing |
| CN1724334A (en) * | 2004-07-24 | 2006-01-25 | 李群武 | Steel cable reel of hoister |
| CN201612092U (en) * | 2009-12-18 | 2010-10-27 | 张天明 | Novel deep-water fishing lift net |
| CN103478087A (en) * | 2013-09-23 | 2014-01-01 | 浙江海洋学院 | Fish catching device of fishing boat |
| CN205098422U (en) * | 2015-10-30 | 2016-03-23 | 中国水产科学研究院淡水渔业研究中心 | Ship is catched to eriocheir sinensis otter -trawl |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393174A (en) * | 2019-08-26 | 2019-11-01 | 丹东丰奥船业有限公司 | A kind of clam class finishing device |
| CN114271242A (en) * | 2021-12-24 | 2022-04-05 | 费香东 | Fishing corbicula fluminea drag harrow net device and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105216977B (en) | 2018-01-02 |
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