WO2021237956A1 - 基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置 - Google Patents

基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置 Download PDF

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WO2021237956A1
WO2021237956A1 PCT/CN2020/110202 CN2020110202W WO2021237956A1 WO 2021237956 A1 WO2021237956 A1 WO 2021237956A1 CN 2020110202 W CN2020110202 W CN 2020110202W WO 2021237956 A1 WO2021237956 A1 WO 2021237956A1
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towing
transmission shaft
antarctic krill
screw conveyor
trawl
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PCT/CN2020/110202
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English (en)
French (fr)
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王鲁民
齐广瑞
王永进
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中国水产科学研究院东海水产研究所
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Publication of WO2021237956A1 publication Critical patent/WO2021237956A1/zh

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    • 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
    • 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
    • A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure

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  • the invention belongs to the technical field of Antarctic krill trawl, and particularly relates to an auxiliary transport device for continuous fishing of Antarctic krill trawl based on towing power.
  • Continuous fishing of Antarctic krill by trawling refers to a fishing method that simultaneously transfers the catch collected by the trawl net sac to the fishing vessel while the trawl is being towed and moved to catch the Antarctic krill, so as to achieve continuous fishing and avoid netting.
  • CN201811562447.2 discloses a pumping fishing structure that can realize continuous fishing of Antarctic krill by trawling. The catches collected in the capsule net are sucked and transferred to the fishing boat to achieve continuous fishing.
  • the existing pump-suction fishing system has the following problems in the application process.
  • the catch is large, the tail of the capsule net is prone to blockage, and the distance between the fish suction pump and the trawl capsule net makes the capsule
  • the suction power at the tail of the net is insufficient, causing the fish suction pump to be unable to continuously suck and transfer the catch.
  • the technical problem to be solved by the present invention is to provide an Antarctic krill trawl continuous fishing catch auxiliary conveying device based on towing power, which can assist the continuous pumping fishing system to carry out the auxiliary conveying of the catch, effectively prevent the occurrence of blockage, and ensure the pumping transfer The continuity of the catch.
  • the technical solution adopted by the present invention to solve its technical problem is to provide an auxiliary transportation device for continuous fishing of Antarctic krill trawl based on towing power, which includes a pumping inner tube connected to the tail end of the cyst net , It also includes a housing cover, a towing hydrodynamic drive mechanism, a gearbox, and a friendly screw conveyor.
  • the pumping inner pipe is located inside the housing cover and is drawn from the inside of the housing cover.
  • the friendly screw conveyor is rotatably installed Inside the pump suction inner tube, the tow water power drive mechanism is arranged behind the housing cover, the first drive shaft of the tow water power drive mechanism is connected to the input end of the gearbox, and the output end of the gearbox passes through the second transmission
  • the shaft is connected with the friendly screw conveyor and drives the friendly screw conveyor to rotate through the drag hydrodynamic drive mechanism.
  • the towed hydrodynamic drive mechanism includes a fairing, a plurality of propeller blades, a mounting ring and a first transmission shaft, the mounting ring is rotatably installed along the inner wall of the fairing, and the first transmission shaft is arranged at the central axis of the mounting ring, The plurality of propellers are evenly spaced along the circumference of the first transmission shaft and installed between the mounting ring and the first transmission shaft in an angle-adjustable manner. The inner end of the propeller is connected to the first transmission shaft, and the outer end is connected to the mounting ring .
  • the towed hydrodynamic drive mechanism includes a fairing, a plurality of propellers, and a first transmission shaft.
  • the first transmission shaft is arranged at the central axis of the fairing, and the plurality of propellers are fixedly mounted on the first transmission shaft and along the first
  • the drive shafts are evenly spaced in the circumferential direction, and the propellers are located inside the fairing.
  • the friendly screw conveyor is rotatably installed inside the pumping inner pipe through a second mounting ring, and the second mounting ring is rotatably installed along the inner wall of the pumping inner pipe.
  • the central axis of the second mounting ring is fixedly mounted on the second mounting ring.
  • the friendly screw conveyor includes a bullet-shaped propeller seat, a plurality of spiral blades and a plurality of streamlined guide plates, and the plurality of propeller blades are evenly distributed in the circumferential direction on the tapered head of the bullet-shaped propeller seat.
  • Streamlined guide plates are evenly distributed in the circumferential direction on the cylindrical tail of the bullet-shaped paddle seat.
  • the friendly screw conveyor is arranged along the central axis of the pumping inner tube and the tapered head of the bullet-shaped paddle seat faces the bag net.
  • the pumping inner tube is arranged tangentially to the bottom inner wall of the outer shell cover, floating material is filled between the pumping inner tube and the outer shell cover, and an anti-impact floating ball is arranged on the top of the outer shell cover.
  • the outer shell cover and the pump suction inner pipe are connected by a flange structure.
  • the gearbox is arranged inside the housing cover and outside the pumping inner pipe, the first transmission shaft and the housing cover are connected by a bearing structure, and the second transmission shaft is connected with the pumping inner pipe by a bearing structure .
  • a friendly screw conveyor is installed in the pumping inner tube, and a drag hydraulic drive mechanism is used to drive the friendly screw conveyor to rotate.
  • a drag hydraulic drive mechanism is used to drive the friendly screw conveyor to rotate.
  • it can evenly mix the fish caught in the pumping inner tube with the water, which can effectively reduce the possibility of blockage caused by the accumulation of the fish, and ensure the continuity of the pumping and transfer of the fish, and improve The smoothness of the continuous fishing of Antarctic krill trawl;
  • the continuous rotation of the friendly screw conveyor in the pumping inner tube can play a certain role in boosting transportation, and the combination of the pumping fishing system can achieve more efficient suction The effect of transferring Antarctic krill.
  • the towing hydrodynamic drive mechanism follows the trawl to move, and can use the hydrodynamic drive to drive the friendly screw conveyor to rotate, avoiding the dependence on power driving, and can be combined with the Antarctic krill trawl. Suitable for long-term continuous underwater fishing.
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • Fig. 2 is a schematic structural diagram of a preferred embodiment of a towed hydrodynamic drive mechanism.
  • Figure 3 is a schematic diagram of the installation structure of the friendly screw conveyor.
  • an Antarctic krill trawl continuous fishing auxiliary transportation device based on towing power includes a pumping inner tube 1, a housing cover 3, a towing hydrodynamic drive mechanism, a gearbox 4 and a friendly screw conveyor 5.
  • the pump suction inner tube 1 is connected to the tail end of the capsule net 2 of the Antarctic krill trawl.
  • the pump suction inner tube 1 is connected to the shrimp suction pump for pumping out the Antarctic krill collected in the bladder net 2 and transferring it to a fishing boat.
  • the pumping fishing system belongs to the existing technical content, and will not be repeated here.
  • the pumping inner pipe 1 is located inside the housing cover 3 and is led out from the housing cover 3.
  • the pumping inner pipe 1 is arranged tangentially to the bottom inner wall of the housing cover 3, and the housing cover 3 and the pumping inner pipe 1 are connected by a flange structure. fixed.
  • the top of the outer shell cover 3 is provided with an ABS externally coated composite polyurethane foamed anti-impact float 12, so that the auxiliary conveying device can be suspended in the water body by buoyancy. middle.
  • the friendly screw conveyor 5 is rotatably installed inside the pumping inner tube 1, and the drag hydrodynamic driving mechanism is arranged behind the housing cover 3.
  • the first drive shaft 6 of the tow water power drive mechanism is connected to the input end of the gearbox 4, and the output end of the gearbox 4 is connected to the friendly screw conveyor 5 through the second drive shaft 7, and is driven by the tow water power drive mechanism.
  • Type screw conveyor 5 rotates.
  • the gearbox 4 is arranged inside the housing cover 3 and outside the pumping inner pipe 1.
  • the first transmission shaft 6 and the housing cover 3 are connected by a bearing structure, and the second transmission shaft 7 and the pumping inner tube 1 are connected by a bearing structure.
  • the preferred structure of the towing hydrodynamic drive mechanism is shown in FIG. 2, and includes a fairing 8, a propeller 9, a mounting ring 10, and a first transmission shaft 6.
  • the mounting ring 10 is rotatably installed along the inner wall of the fairing 8 through ball bearings.
  • the first transmission shaft 6 is arranged at the central axis of the mounting ring 10, and the propellers 9 are installed at even intervals along the circumferential direction of the first transmission shaft 6 and the angle is adjustable. Between the mounting ring 10 and the first transmission shaft 6, the inner end of the propeller 9 is connected to the first transmission shaft 6, and the outer end is connected to the mounting ring 10.
  • the specific structure of the adjustable installation of the blade angle belongs to the existing technical content, and the detailed description will not be given here.
  • This towed hydrodynamic drive mechanism can not only use hydrodynamic power to drive the propeller 9, the mounting ring 10, and the first transmission shaft 6 to rotate around the central axis of the fairing 8, but also adjust the front flow area by adjusting the angle of the propeller 9 , Can achieve the effect of adjusting the speed of the friendly screw conveyor 5.
  • the towing hydrodynamic driving mechanism can also adopt the following structure, including the fairing 8, the propeller 9 and the first transmission shaft 6.
  • the first transmission shaft 6 is arranged at the center axis position of the fairing 8.
  • the propellers 9 are fixedly mounted on the first transmission shaft 6 and are evenly spaced along the circumferential direction of the first transmission shaft 6.
  • the propellers 9 are located inside the fairing 8 and can
  • the first drive shaft 6 is driven to rotate by hydrodynamic power to drive the friendly screw conveyor 5 to rotate.
  • the friendly screw conveyor 5 includes a bullet-shaped paddle seat 5-1, three screw-shaped blades 5-2, and 7 streamlined guide plates 5-3.
  • the propeller blades 5-2 are evenly distributed in the circumferential direction on the tapered head of the bullet-shaped propeller seat 5-1
  • the streamlined guide plates 5-3 are evenly distributed in the circumferential direction on the cylinder of the bullet-shaped propeller seat 5-1. Shaped tail.
  • the friendly screw conveyor 5 is rotatably installed inside the pumping inner tube 1 through the second mounting ring 13.
  • the second mounting ring 13 is rotatably installed along the inner wall of the pump suction tube 1 through ball bearings.
  • the friendly screw conveyor 5 is fixedly mounted on the second mounting ring 13 along the central axis of the second mounting ring 13 through a mounting frame, and the bullet The tapered head of the type paddle seat 5-1 faces the bag net 2.
  • the second drive shaft 7 can drive the friendly screw conveyor 5 and the second mounting ring 13 to rotate around the central axis of the pumping inner tube 1, which can evenly mix the fish caught in the pumping inner tube 1 with water , Reduce the possibility of blockage caused by mutual accumulation of catches, and can play a certain role in boosting transportation.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Screw Conveyors (AREA)

Abstract

一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，包括泵吸内管（1），泵吸内管（1）与囊网（2）的尾端连接，还包括外壳罩（3）、拖曳水动力驱动机构、变速箱（4）和友好型螺旋输送器（5），泵吸内管（1）位于外壳罩（3）内部并从外壳罩（3）内部引出，友好型螺旋输送器（5）可转动地安装在泵吸内管（1）内部，拖曳水动力驱动机构设置于外壳罩（3）后方，拖曳水动力驱动机构的第一传动轴（6）与变速箱（4）的输入端连接，变速箱（4）的输出端通过第二传动轴（7）与友好型螺旋输送器（5）连接并通过拖曳水动力驱动机构带动友好型螺旋输送器（5）转动。该装置能够辅助连续泵吸捕捞系统进行渔获物辅助输送，有效防止堵塞发生，保障泵吸转移渔获物的连续性。

Description

基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置 技术领域
本发明属于南极磷虾拖网的技术领域，特别是涉及一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置。
背景技术
南极磷虾拖网连续捕捞是指拖网在被牵引移动对南极磷虾进行捕捞的过程中，同步将拖网网囊收集的渔获物转移至捕捞船，从而达到连续捕捞避免起网的一种捕捞方式。参见专利“近船端南极磷虾连续泵吸捕捞系统”(CN201811562447.2)公开的一种可实现南极磷虾拖网连续捕捞的泵吸捕捞结构，在拖网扫海捕捞的同时利用吸虾泵将囊网中收集的渔获物抽吸转移到捕捞船上以实现连续型捕捞。
现有的这种泵吸式捕捞系统在应用过程中存在以下问题，当渔获量较大时，囊网尾部容易发生堵塞，且由于吸鱼泵与拖网囊网之间的距离较远使得囊网尾部的吸力不足，导致吸鱼泵无法连续抽吸转移渔获物。
发明内容
本发明所要解决的技术问题是提供一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，能够辅助连续泵吸捕捞系统进行渔获物辅助输送，有效防止堵塞发生，保障泵吸转移渔获物的连续性。
本发明解决其技术问题所采用的技术方案是提供一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，包括泵吸内管，所述泵吸内管与囊网的尾端连接，还包括外壳罩、拖曳水动力驱动机构、变速箱和友好型螺旋输送器，所述泵吸内管位于外壳罩内部并从外壳罩内部引出，所述友好型螺旋输送器可转动地安装在泵吸内管内部，所述拖曳水动力驱动机构设置于外壳罩后方，所述拖曳水动力驱动机构的第一传动轴与变速箱的输入端连接，所述变速箱的输出端通过第二传动轴与友好型螺旋输送器连接并通过拖曳水动力驱动机构带动友好型螺旋输送器转动。
所述拖曳水动力驱动机构包括整流罩、若干螺旋桨叶、安装环和第一传动轴，所述安装环沿整流罩内壁可转动安装，所述第一传动轴设置于安装环的中心轴位置，所述若干螺旋桨沿第一传动轴的周向均匀间隔且角度可调节地安装在安装环与第一传动轴之间，所述螺旋桨的内侧端与第一传动轴连接、外侧端与安装环连接。
所述拖曳水动力驱动机构包括整流罩、若干螺旋桨和第一传动轴，所述第一传动轴设 置于整流罩的中心轴位置，所述若干螺旋桨固定安装在第一传动轴上且沿第一传动轴的周向均匀间隔分布，所述螺旋桨位于整流罩内部。
所述友好型螺旋输送器通过第二安装环可转动地安装在泵吸内管内部，所述第二安装环沿泵吸内管内壁可转动安装，所述友好型螺旋输送器通过安装架沿第二安装环的中心轴固定安装在第二安装环上。
所述友好型螺旋输送器包括子弹型桨座、若干螺旋型桨叶和若干流线型导板，所述若干螺旋型桨叶沿周向均匀分布地设置于子弹型桨座的锥形头部，所述流线型导板沿周向均匀分布地设置在子弹型桨座的圆柱形尾部。
所述友好型螺旋输送器沿泵吸内管的中心轴设置且子弹型桨座的锥形头部朝向囊网。
所述泵吸内管与外壳罩的底部内壁相切设置，所述泵吸内管与外壳罩之间填充浮料，所述外壳罩的顶部设有抗撞击浮球。
所述外壳罩与泵吸内管之间通过法兰结构连接。
所述变速箱设置于外壳罩内部且位于泵吸内管外部，所述第一传动轴与外壳罩之间通过轴承结构连接，所述第二传动轴与泵吸内管之间通过轴承结构连接。
有益效果
第一，本发明通过在泵吸内管中设置友好型螺旋输送器，并利用拖曳水动力驱动机构带动友好型螺旋输送器转动。一方面，能够将进入到泵吸内管中的渔获物与水均匀混合，能够有效降低渔获物之间相互堆积导致堵塞发生的可能性，保障泵吸转移渔获物的连续性，提升南极磷虾拖网连续捕捞的顺畅性；另一方面，友好型螺旋输送器在泵吸内管中连续转动能够发挥一定的助推输送作用，与泵吸捕捞系统相结合能够达到更加高效的抽吸转移南极磷虾的效果。
第二，南极磷虾拖网受牵引移动的过程中，拖曳水动力驱动机构跟随拖网移动，能够利用水动力驱动友好型螺旋输送器进行转动，避免了对电源驱动的依赖，能够与南极磷虾拖网长时间的水下连续捕捞相适用。
附图说明
图1为本发明的结构示意图。
图2为拖曳水动力驱动机构优选实施例的结构示意图。
图3为友好型螺旋输送器的安装结构示意图。
具体实施方式
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
如图1所示的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，包括泵吸内管1、外壳罩3、拖曳水动力驱动机构、变速箱4和友好型螺旋输送器5。泵吸内管1与南极磷虾拖网的囊网2尾端连接。泵吸内管1连接到吸虾泵用于将囊网2中收集的南极磷虾抽出并转移到捕捞船，泵吸捕捞系统属于现有技术内容，这里不再进行赘述。
泵吸内管1位于外壳罩3内部并从外壳罩3内部引出，泵吸内管1与外壳罩3的底部内壁相切设置，外壳罩3与泵吸内管1之间通过法兰结构连接固定。泵吸内管1与外壳罩3之间填充有发泡浮料11，外壳罩3的顶部设有ABS外敷复合聚氨酯发泡抗撞击浮球12，使得该辅助输送装置能够依靠浮力作用悬浮在水体中。
友好型螺旋输送器5可转动地安装在泵吸内管1内部，拖曳水动力驱动机构设置于外壳罩3后方。拖曳水动力驱动机构的第一传动轴6与变速箱4的输入端连接，变速箱4的输出端通过第二传动轴7与友好型螺旋输送器5连接，并通过拖曳水动力驱动机构带动友好型螺旋输送器5转动。变速箱4设置于外壳罩3内部，且位于泵吸内管1外部。第一传动轴6与外壳罩3之间通过轴承结构连接，第二传动轴7与泵吸内管1之间通过轴承结构连接。
拖曳水动力驱动机构的优选结构如图2所示，包括整流罩8、螺旋桨9、安装环10和第一传动轴6。安装环10沿整流罩8内壁通过滚珠轴承可转动地安装，第一传动轴6设置于安装环10的中心轴位置，螺旋桨9沿第一传动轴6的周向均匀间隔且角度可调节地安装在安装环10与第一传动轴6之间，螺旋桨9的内侧端与第一传动轴6连接，外侧端与安装环10连接。桨叶角度可调节安装的具体结构属于现有技术内容，这里不再进行详细说明。这种拖曳水动力驱动机构不仅能够利用水动力驱动螺旋桨9、安装环10和第一传动轴6整体绕整流罩8的中心轴进行转动，而且通过调节螺旋桨9的角度能够对迎流面积进行调节，能够达到调节友好型螺旋输送器5转速的效果。
当然，拖曳水动力驱动机构也可以采用如下结构，包括整流罩8、螺旋桨9和第一传动轴6。第一传动轴6设置于整流罩8的中心轴位置，螺旋桨9固定安装在第一传动轴6上，且沿第一传动轴6的周向均匀间隔分布，螺旋桨9位于整流罩8内部，能够利用水动 力驱动第一传动轴6转动进而带动友好型螺旋输送器5旋转。
如图3所示，友好型螺旋输送器5包括子弹型桨座5-1、三片螺旋型桨叶5-2和7片流线型导板5-3。螺旋型桨叶5-2沿周向均匀分布地设置于子弹型桨座5-1的锥形头部，流线型导板5-3沿周向均匀分布地设置在子弹型桨座5-1的圆柱形尾部。通过友好型螺旋输送器5的结构设计，能够有效降低泵吸内管1内的阻力，降低友好型螺旋输送器5在转动过程中对渔获物的损伤。
如图3所示，友好型螺旋输送器5通过第二安装环13可转动地安装在泵吸内管1内部。第二安装环13沿泵吸内管1内壁通过滚珠轴承可转动地安装，友好型螺旋输送器5通过安装架沿第二安装环13的中心轴固定安装在第二安装环13上，且子弹型桨座5-1的锥形头部朝向囊网2。通过第二传动轴7能够带动友好型螺旋输送器5和第二安装环13绕泵吸内管1的中心轴转动，既能够将进入到泵吸内管1中的渔获物与水均匀混合，降低渔获物之间相互堆积导致堵塞发生的可能性，又能够发挥一定的助推输送作用。

Claims (9)

  1. 一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，包括泵吸内管(1)，所述泵吸内管(1)与囊网(2)的尾端连接，其特征在于：还包括外壳罩(3)、拖曳水动力驱动机构、变速箱(4)和友好型螺旋输送器(5)，所述泵吸内管(1)位于外壳罩(3)内部并从外壳罩(3)内部引出，所述友好型螺旋输送器(5)可转动地安装在泵吸内管(1)内部，所述拖曳水动力驱动机构设置于外壳罩(3)后方，所述拖曳水动力驱动机构的第一传动轴(6)与变速箱(4)的输入端连接，所述变速箱(4)的输出端通过第二传动轴(7)与友好型螺旋输送器(5)连接并通过拖曳水动力驱动机构带动友好型螺旋输送器(5)转动。
  2. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述拖曳水动力驱动机构包括整流罩(8)、若干螺旋桨(9)、安装环(10)和第一传动轴(6)，所述安装环(10)沿整流罩(8)内壁可转动安装，所述第一传动轴(6)设置于安装环(10)的中心轴位置，所述若干螺旋桨(9)沿第一传动轴(6)的周向均匀间隔且角度可调节地安装在安装环(10)与第一传动轴(6)之间，所述螺旋桨(9)的内侧端与第一传动轴(6)连接、外侧端与安装环(10)连接。
  3. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述拖曳水动力驱动机构包括整流罩(8)、若干螺旋桨(9)和第一传动轴(6)，所述第一传动轴(6)设置于整流罩(8)的中心轴位置，所述若干螺旋桨(9)固定安装在第一传动轴(6)上且沿第一传动轴(6)的周向均匀间隔分布，所述螺旋桨(9)位于整流罩(8)内部。
  4. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述友好型螺旋输送器(5)通过第二安装环(13)可转动地安装在泵吸内管(1)内部，所述第二安装环(13)沿泵吸内管(1)内壁可转动安装，所述友好型螺旋输送器(5)通过安装架沿第二安装环(13)的中心轴固定安装在第二安装环(13)上。
  5. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述友好型螺旋输送器(5)包括子弹型桨座(5-1)、若干螺旋型桨叶(5-2)和若干流线型导板(5-3)，所述若干螺旋型桨叶(5-2)沿周向均匀分布地设置于子弹型桨座(5-1)的锥形头部，所述流线型导板(5-3)沿周向均匀分布地设置在子弹型桨座(5-1)的圆柱形尾部。
  6. 根据权利要求5所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装 置，其特征在于：所述友好型螺旋输送器(5)沿泵吸内管(1)的中心轴设置且子弹型桨座(5-1)的锥形头部朝向囊网(2)。
  7. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述泵吸内管(1)与外壳罩(3)的底部内壁相切设置，所述泵吸内管(1)与外壳罩(3)之间填充浮料(11)，所述外壳罩(3)的顶部设有抗撞击浮球(12)。
  8. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述外壳罩(3)与泵吸内管(1)之间通过法兰结构连接。
  9. 根据权利要求1所述的一种基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置，其特征在于：所述变速箱(4)设置于外壳罩(3)内部且位于泵吸内管(1)外部，所述第一传动轴(6)与外壳罩(3)之间通过轴承结构连接，所述第二传动轴(7)与泵吸内管(1)之间通过轴承结构连接。
PCT/CN2020/110202 2020-05-27 2020-08-20 基于拖曳动力的南极磷虾拖网连续捕捞渔获辅助输送装置 WO2021237956A1 (zh)

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