Active rolling and transporting device of cables for submarine cable laying

Abstract

The present invention provides an active rolling and transporting device of cables for submarine cable laying, and relates to a cable rolling and transporting device. In recent years, because the kilometers and sectional areas of submarine power cable laying are greatly increased, a traditional high-pumping submarine power cable back-twist device cannot satisfy the technical requirements of a laying construction. The active rolling and transporting device provided by the invention comprises a circle cable tray, a leadfair and a console; a pivotal bearing is arranged at the center of the cable tray, a driven chain is fixedly connected with the bottom of the side surface of the cable tray surrounding the circumference, and a power driving device is installed at the outer side of the cable tray; the cable tray is arranged on a rolling device; the console is configured to control the movement of the driving device which drive the rotation of the cable tray through the driven chain, and the leadfair is configured to roll the cable in the control of the console. Through adoption of a rotary cable back-twist mode, the technical scheme is able to greatly improve the efficiency and the stability of submarine power cable laying work and save the cost.

Description

technical field [0001] The invention relates to a cable winding and conveying device. Background technique [0002] Before the laying and construction of the submarine cable, under the action of external force, it should be coiled in a circular cable reel in a packaging method similar to a steel wire rope. This winding method will definitely generate internal rotational stress on the armored submarine power cable. Every turn, there is a circle of additional ring torque, which requires a certain method to untie the ring torque one by one when laying the submarine cable, so as to prevent the phenomenon of "twisting" damage to the submarine cable caused by the accumulation of torque. . At present, the back-twisting of submarine cables is carried out using the high-pumping method. The main feature is that the cable reel does not rotate, and a certain height of the back-twist frame needs to be installed. The disadvantage is that the transition of the submarine cable on the back-...

AI Technical Summary

Problems solved by technology

At present, the submarine cable is untwisted by using the high-drawing type. The main feature is that the cable reel does not rotate, and a certain height of the untwisting frame needs to be installed. The disadvantage is that the submarine cable may be damaged when it transitions on the untwisting frame. The frame is huge and heavy, it is very difficult to install and disassemble, and the cost is also high. The most critical problem is to use this method to untwist. There will inevitably be residual rotational stress on the submarine cable, and complete untwisting cannot be achieved.

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