Hydraulic system of tuna fishing machine

Abstract

The invention discloses a hydraulic system of a tuna fishing machine. The hydraulic system of the tuna fishing machine comprises a rope coiling machine hydraulic motor and a rope throwing machine hydraulic motor. An oil supplement pipeline is connected between the rope coiling machine hydraulic motor and the rope throwing machine hydraulic motor, is divided into two paths after starting off from a rope throwing machine hydraulic pipeline, and is respectively connected into an oil inlet and an oil outlet of the rope coiling machine hydraulic motor through one-way valves, two pressure release valves are arranged between the two ends of the oil inlet and the oil outlet of the rope throwing machine hydraulic motor in parallel and are opposite in direction, and a high pressure ball valve is connected between the oil inlet and the oil outlet of the rope throwing machine hydraulic motor. The hydraulic system can prevent the pipelines from being damaged when an emergency brake is carried out on a rope coiling machine, can prevent the rope coiling machine from rotating and from being damaged without hydraulic oil when a rope throwing machine operates, and can guarantee synchronous operation of the rope cooling machine and the rope throwing machine.

Description

technical field [0001] The invention relates to the technical field of sea fishing machinery, in particular to a hydraulic system of a tuna fishing machine. Background technique [0002] The tuna fishing machine is a kind of sea fishing machine for ocean-going tuna fishing. The general tuna fishing machine includes a rope throwing machine, a rope taking machine, an oil pump power unit, a control valve, an electric starter box, a tachometer, an electronic control panel and a horn. These components are connected by hydraulic pipelines. The rope drawer on the tuna fishing machine may need to perform emergency braking during operation, and the partial pressure of the hydraulic pipelines on both sides of the rope drawer will rise to a very high value instantaneously during emergency braking. Cause pressure shock waves, causing damage to hydraulic components and pipelines. [0003] When casting the line from the line-throwing machine, the traditional tuna fishing machine has no h...

AI Technical Summary

Problems solved by technology

[0003] When casting the line from the line-throwing machine, the traditional tuna fishing machine has no hydraulic oil supply due to the switch of the reversing valve, but due to the dragging effect of the fishing line, the hydraulic motor of the rope-receiving machine and the drum are forced to quickly Running at a high speed, while the hydraulic motor of the rope receiving machine rotates at high speed without hydraulic oil, which will make the internal mechanical parts directly contact each other during use. Without sufficient lubrication, it is prone to seizure and cavitation, which reduces the hydraulic pressure. The service life of the motor, and when the traditional rope throwing machine is working, in order to ensure that the operation of the rope receiving machine and the rope throwing machine are synchronized, manual adjustment is required

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