Self-energized up and down adjusting equipment for euphausia superba beam trawling

An Antarctic krill and self-supply technology, applied in the field of truss trawling, can solve problems such as inability to adjust the dive and achieve the effect of self-supply

Pending Publication Date: 2020-08-14
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing truss trawls can only passively control the depth of the water level by controlling the length of the towing frame and the sailing speed of the fishing vessel, and cannot actively adjust the dive.

Method used

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  • Self-energized up and down adjusting equipment for euphausia superba beam trawling
  • Self-energized up and down adjusting equipment for euphausia superba beam trawling
  • Self-energized up and down adjusting equipment for euphausia superba beam trawling

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Embodiment Construction

[0021] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0022] Such as figure 1 An Antarctic krill girder trawl ascending self-supplied energy adjustment equipment shown includes ascending and diving adjusting devices 2 symmetrically installed at both ends of the girder 1 . Such as figure 2 and image 3 As shown, the dive adjustment device 2 includes a fairing 3 , a protective cover 4 , a propeller water flow generator 5 , a bidirectional drive motor 6 , a rotating screw 7 , a l...

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Abstract

The invention relates to a self-energized up and down adjusting equipment for euphausia superba beam trawling. The equipment includes a pair of up and down adjusting devices symmetrically arranged ona beam. Each of the up and down adjusting devices includes a fairing, a protective cover, a propeller water current generator, a bidirectional driving motor, a rotary screw, a lifting and lowering connector and a fin. The protective cover is connected with the rear end of the fairing. The propeller water current generator is arranged inside the fairing. The bidirectional driving motor is driven bythe propeller water current generator. Two ends of the rotary screw are arranged on the protective cover, wherein the two ends are along the vertical direction and can rotate bidirectionally. The rotary screw is driven by the bidirectional driving motor. The lifting and lowering connector is arranged on the rotary screw in a thread structure. The front end of the fin is horizontal and both sidesof the fin are rotationally connected with the protective cover separately. The rear end of the fin is connected with the lifting and lowering connector and is driven to adjust the angle of the fin through the lifting and lowering movement of the lifting and lowering connector. The self-energized up and down adjusting equipment provide by the invention can realize the controllable and self-energized active lifting and lowering adjustment of the beam trawling.

Description

technical field [0001] The invention belongs to the technical field of truss trawls, and in particular relates to self-supply energy adjustment equipment for raising submerged truss trawls for Antarctic krill. Background technique [0002] The existing girder trawling net used for Antarctic krill fishing carries the trawling net through the girder girder, and the girder girder is connected to the traction system of the fishing boat through the towing rail, and the girder girder trawling net is dragged by the fishing boat to sweep the sea for fishing. Existing truss trawls can only passively control the depth of the water level by controlling the length of the towing frame and the sailing speed of the fishing vessel, and cannot realize the active adjustment function of diving. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an Antarctic krill girder trawl ascending submerged self-supply energy-supply adjustment eq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K73/02A01K75/00
CPCA01K73/02A01K73/025A01K75/00
Inventor 王永进王鲁民齐广瑞刘永利
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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