A seabed slotting rotary cutting device

Abstract

The invention discloses a rotary cutting device for seabed slotting, which aims to solve the problems of inconvenient operation and low working efficiency for seabed slotting. The invention includes a rotary cutting head, a rotating shaft, a mounting frame, and a replacement rotary head. The spring is pre-tightened, the rotating shaft is provided with a limit protrusion, and the limit protrusion is abutted on the positioning column; the front end of the rotary cutting head is equipped with a number of rotating rods, the front end of the rotating rod is provided with a rotary plate, and the rotating rod is provided with a ring gear. There are gears, and the ring gear is meshed with the gears for transmission; a number of high-pressure flushing pipes facing forward are installed on the rotary cutting head; there are set holes on the replacement head, through which the replacement head can move axially and be set on the rotating shaft. The replacement rotor is placed behind the rotary cutting head, a number of locking teeth are provided on the rotating shaft, a number of positioning teeth are provided on the inner wall of the sleeve hole, and a twisting part is provided between the rotary cutting head and the replacement rotor on the rotating shaft.

Description

technical field [0001] The invention relates to a submarine cable laying technology, more particularly, to a submarine slotted rotary cutting device. Background technique [0002] When laying a submarine cable, it is necessary to perform a slotting operation on the seabed to form a groove, then lay the submarine cable in the groove, and finally cover the submarine cable with sediment for protection. At present, the subsea grooving operation generally adopts a professional subsea grooving device. A horizontally arranged rotary cutting head is installed on the grooved device. The rotary cutting head moves forward while rotating the groove to form a long groove. In the actual grooving process, it is inconvenient to discharge sediment, resulting in a shallow groove depth, which is not conducive to the layout of submarine cables, and the rotary cutting head is easy to get stuck when encountering rocks. The rotary cutting head needs to be replaced after long-term use and serious ...

AI Technical Summary

Problems solved by technology

In the actual slotting process, it is inconvenient to discharge the sediment, resulting in a shallow slotting depth, which is not conducive to the laying of submarine cables, and the rotary cutting head is easy to get stuck when encountering rocks

The rotary cutting head needs to be replaced after long-term use and severe wear and tear. When replacing, the rotary cutting head needs to be hoisted to the cable-laying ship, and then sink to the bottom of the sea after the replacement is completed. The operation is inconvenient and affects the work efficiency.

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