A kind of fishing net lifting machine and net lifting method for large-scale fishery

Abstract

The invention discloses a net lifting machine for large-scale fishing grounds and a net lifting method thereof. The net lifting machine includes: a cylindrical shell, the side of the shell is provided with several strip-shaped grooves distributed in parallel. A drum is installed inside the housing, and an input shaft and an end shaft are respectively provided at both ends of the drum, and a number of claw groups equal to the number of the bar-shaped grooves are arranged on the side of the drum, and each protruding The tooth set includes a plurality of protruding teeth evenly distributed in a circumferential direction on the side of the drum, and the drum is eccentrically arranged relative to the housing, that is, the center line of the drum is parallel to the center line of the housing and there is a gap between the two. The distance is eccentricity h, so that the convex teeth of each convex tooth group can periodically protrude outward along the strip groove during the rotation of the drum; the net lifting machine also includes a fixed connection on the housing A connecting bracket and a drive mechanism for powering the drum. The net lifting machine of the invention can be used independently, the net lifting position is easy to control, and the net lifting efficiency is high.

Description

technical field [0001] The invention relates to a fishing net lifting machine for a large-scale fishing ground and a net lifting method thereof. Background technique [0002] Common equipment for marine fish farming includes traditional cages, deep-water cages, and large fish farms. Generally, the deep-water cage is composed of four parts: the cage frame system, the net system, the anchoring system and the supporting facility system; the large-scale fishing ground is a hull that is surrounded by a truss structure to form a breeding space, and then the net is fixed on the hull to form a fish cage. Growth space to prevent fish from escaping and predators from invading. The breeding area of ​​the fish farm can be larger than the deep-water cages. For example, an intelligent fish farm in the South China Sea has a total length of 91.3 meters, a width of 27.6 meters, a depth of 7.5 meters, a design draft of 6.5 meters, and an effective breeding water volume of 11,000m 3 , it is ...

AI Technical Summary

Problems solved by technology

The water volume of each breeding space in large-scale fish farms is larger than that of deep-water cages. When lifting the net, the weight of the net clothes is also greater, and it takes longer to lift the net. If the operation is not careful, it is more likely to cause fish injury or death.

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