Cable-direction-following ROV winch applied to non-power-locating mother ship

Abstract

The invention discloses a cable-direction-following ROV winch applied to a non-power-locating mother ship. The cable-direction-following ROV winch comprises the non-power-locating mother ship, an A-shaped frame, a winch cable-winding-unwinding idler wheel and an underwater robot, wherein the A-shaped frame, the winch cable-winding-unwinding idler wheel and the underwater robot are arranged on thenon-power-locating mother ship. A pulley is rotationally connected onto the A-shaped frame, an umbilical cable is connected to the underwater robot and wound around the pulley to be connected with thewinch cable-winding-unwinding idler wheel, and a positioning piece for guiding the umbilical cable is further arranged on the non-power-locating mother ship; a connecting rod is arranged on the A-shaped frame; the pulley comprises a sliding part and a rotating part, the sliding part is annular, is arranged on the connecting rod and slides in the direction of the connecting rod, and a strip-shapedgroove is formed in the connecting rod; protruding blocks protrude on the sliding part, and the rotating part is rotationally connected at the outer ring of the sliding part. According to the cable-direction-following ROV winch, as the pulley is designed to freely slide on the A-shaped frame, the risks that as the ship rotates, the working efficiency of the underwater robot is affected, and meanwhile as the umbilical cable is broken, the underwater robot is lost can be lowered.

Description

technical field [0001] The invention relates to the field of ROV winch devices, in particular to a cable direction following ROV winch applied to a non-dynamically positioned mother ship. Background technique [0002] At this stage, the underwater robot ROV is carried on the dynamic positioning mother ship during the underwater operation process. The dynamic positioning mother ship uses its own propulsion device to keep the ship in a stable position so as to cooperate with the operation of the underwater robot. However, the cost of dynamic positioning ships is high, the shipping schedule is tight, and the cost of renting and mobilizing is high. [0003] Non-dynamically positioned mother ships are widely used, with relatively low construction costs and low rental costs. There are also many types and quantities of ships available in the market, and they are flexible to use. Such environmental factors are relatively large, and the position changes greatly. In the non-dynamic p...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the ROV umbilical cable moves with the ship to generate a huge pulling force encountered in the existing non-dynamic positioning mother ship’s ROV operation, the present invention provides a cable direction following ROV winch applied to the non-dynamic positioning mother ship, which reduces the ROV’s Rotation affects operational efficiency while reducing the risk of ROV loss due to umbilical breaks

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