A hydraulic remote control rotary four-drum netting machine

Abstract

The invention relates to a hydraulic remotely-operated rotary four-roller seine hauling machine. The machine comprises a frame, wherein three main rollers are fixedly arranged on the frame; two side main rollers are positioned at a high height, and the middle main roller is positioned at a low height; the end part of at least one main roller is provided with a hydraulic motor, and the output shaft of the hydraulic motor and the main rollers are in coaxial arrangement; the frame is supported by a rotating seat which is hinged with the output shaft of a rotary cylinder through a horizontal lug, and stretching and retracting of the rotary cylinder can drive the rotary seat to rotate 90 degrees; and a power-free vertical roller is fixedly arranged by the side of the inner side main roller. According to the invention, when the seine hauling machine does not work, the rotary cylinder retracts the part above the rotating seat into a deck through hydraulic control, so collision between the seine hauling machine and objects outside of the deck is reduced; when the seine hauling machine is in work, the rotary cylinder drives the rotating seat to rotate 90 degrees through hydraulic control, so the shaft of the main roller is parallel to the side of a ship; and during hauling of the seine, the vertical roller plays a role of auxiliary guiding.

Description

technical field [0001] The invention relates to a hydraulic remote control operated rotary four-drum net hoist, which belongs to the technical field of net hoist for fishery. Background technique [0002] At present, fishing boats are generally equipped with drift nets. In the operation of lifting nets, manual operation is generally used to collect the nets, and multi-drum net lifting machines are widely used on fishing boats. Existing drift net lifting machines rely on the motor to drive 1 to 4 rollers to rotate through the reduction gear box. The rollers and the fishing net form a certain wrap angle, relying on the friction between the surface of the roller and the drift net to drive the fishing net to continuously retract the deck, and the four rollers lift the net. The wrap angle is large, the frictional contact surface is enlarged, the driving force is large, and the net lifting ability is strong, but the gear reducer is large in size and high in machining accuracy, and...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is: in the existing rotary drum hoisting machine, the gear reduction box of the hydraulic motor has a large volume and high processing precision, and at the same time increases the complexity of the mechanical structure, which brings inconvenience to installation and maintenance, and is heavy , high production cost; the fuselage of the net lifting machine is integrated with the base, and once installed on the deck, the direction cannot be moved. When the fishing boat is docked, the drum and guide rod are easily damaged by collision; all the drums of the drum net lifting machine are arranged in parallel to the axis. The side installation takes up a lot of space on the deck, hinders the passage, and is not conducive to personnel safety. During the net collection process, the net collection direction can only be along the width direction, and the net gear stacking space is narrow, which brings inconvenience to the net collection and management operation; The proportional reversing valves of the hydraulic motors of the net machine are directly installed on the respective racks, and centralized control cannot be realized, especially when there are many deck hydraulic equipment (such as propellers, windlasses, winches, A-frame oil cylinders, etc.), the control Inconvenient, low efficiency of automated operation

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