Ocean fishing boat trawl system compatible with traditional trawl and continuous pumping cross rod trawl

Abstract

The invention provides an ocean fishing boat trawl system compatible with a traditional trawl and a continuous pumping cross rod trawl. The system comprises a supporting portal frame system, a cantilever support system, an operation winch system, a guide pulley system and an auxiliary working crane; the supporting portal frame system is composed of a tail supporting portal frame and a middle supporting portal frame; the cantilever support system is composed of a cantilever support, a cantilever support winding and unwinding hinge and a cantilever support rotating hinge; the operation winch system is composed of a main trawl winch, a hose winch, two cantilever support fixing winches and a cantilever support winding and unwinding winch; the guide pulley system is composed of two cross rod trawl guide pulleys, a cantilever support winding and unwinding guide pulley and a traditional trawl guide pulley; the auxiliary working crane is installed above the tail supporting portal frame, and anet shifter is arranged on the auxiliary working crane. According to the system, two fishing modes can be mutually and rapidly switched, and main fishing equipment can be mutually compatible; when thecontinuous pumping trawl works, winding and unwinding are very convenient, and the net winding and unwinding time is saved.

Description

technical field [0001] The invention relates to a trawling system for an ocean-going fishing vessel, in particular to a trawling system for an ocean-going fishing vessel compatible with a traditional trawl and a continuous pumping cross-bar trawl. Background technique [0002] Antarctic krill is a small invertebrate living in the Antarctic waters. Its reserves are about 600-1000 million tons, and its annual catch is about 0.6-100 million tons. According to biological determination, Antarctic krill meat contains Protein 17.56%, fat 2.11%, and contains all the amino acids necessary for the human body. The current main product of Antarctic krill is to be directly processed into shrimp powder, frozen shrimp or shrimp meat on board after being caught. [0003] Antarctic krill fishing generally adopts variable water layer trawling. Variable water layer trawling is mainly used to catch pelagic fish. Compared with bottom trawling, it causes less damage to the environment. Current k...

AI Technical Summary

Problems solved by technology

The method of continuous pumping to empty the net bag for krill is more efficient than traditional trawling, and the quality of the catch is good. However, when the distribution of krill is not conducive to the operation of continuous pumping trawling, or continuous When the pump trawl fails, it is necessary to use the traditional trawling fishing method. Since the current operating ships cannot take care of the two operating methods, when encountering the above problems, they can only give up fishing or stop the operation.

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