Fully-rotary ROV load bearing device

Abstract

The invention relates to a fully-rotary ROV load bearing device which comprises an umbilical cable terminal. The bottom of the umbilical cable terminal is connected with a wiring cabin through fasteners. In the wiring cabin, an umbilical cable watertight connector of the umbilical cable terminal is connected with a stationary ring watertight connector through a watertight cable component; a slip ring cabin is fixedly installed at the bottom of the wiring cabin through fasteners, a photoelectric slip ring stationary ring is installed on the inner wall face of the slip ring cabin through a fixing pin and located on the lower portion of the stationary ring watertight connector, and a photoelectric slip ring moving ring is installed on the lower portion of the photoelectric slip ring stationary ring; an upper bearing and a lower bearing are installed between the inner wall face of the slip ring cabin and the outer wall face of a photoelectric slip ring shaft sleeve from top to bottom, andan end cover is installed at the bottom of the slip ring cabin through fasteners; and a load bearing head is installed at the bottom of the photoelectric slip ring shaft sleeve through fasteners, a moving ring connector is installed at the bottom of the photoelectric slip ring moving ring, and the moving ring connector penetrates out of the load bearing head through a lead-out watertight cable component and is connected to a junction box. The fully-rotary ROV load bearing device is good in work reliability.

Description

technical field [0001] The invention relates to the technical field of load-bearing devices, in particular to a fully-rotating ROV load-bearing device. Background technique [0002] In the deep sea exploration and operation using the cable control submersible (ROV), the surface mother ship is connected to the underwater ROV through an umbilical cable to realize the deployment and recovery of the ROV, and provide power supply and control communication for the ROV. Among them, the load-bearing device of ROV plays an important role in connecting the umbilical cable and the lifting structure on the top of ROV, and leads the electrical lines and optical fibers in the umbilical cable through watertight cables and connectors, and connects them to the distribution box and electronic cabin of ROV respectively. [0003] Engaged in underwater detection and operation, the navigation maneuverability and flexibility of ROV are very high. Generally, it is required to have at least four deg...

AI Technical Summary

Problems solved by technology

When the length of the umbilical cable is short, its reverse torsional moment is very large, which affects the flexibility of the ROV's bow turning; when the length of the umbilical cable is long, the ROV can turn the bow within a certain range of rotation angles, but Beyond this range, the torsional moment of the umbilical cable still hinders the bow movement

Especially when the turning angle is too large or turning too many times, it will cause serious damage to the umbilical cable, which will lead to serious consequences such as electrical insulation reduction and fiber breakage

At present, the ROV bow angle can only be recorded through the ROV control system. When the bow angle exceeds the preset safety threshold, an alarm will be issued to ensure the reliable operation and safety of the umbilical cable from the aspect of restricting personnel control and use. In fact, there is no Solve problems such as flexibility of ROV turning bow and safety of umbilical cable torsion

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