Deep-sea mobile TV grab based on deep-sea mobile platform

Abstract

The invention discloses a deep-sea mobile TV grab based on a deep-sea mobile platform. The deep-sea mobile TV grab comprises a hanging component, a grab rack, oil cylinder components, bucket body components and an industrial control computer, wherein the hanging component is arranged at the upper end of the grab rack; the oil cylinder components are arranged on both sides of the grab rack; and thebucket body components are arranged on the oil cylinder components. According to the invention, directed at the grabbing and sampling characteristics of submarine bulk materials, the shape of a bucket body is specially designed, and during bucket body processing, high-strength steel plates are adopted for ensuring the processing precision, folding sealing performance, interchangeability and impact resistance under harsh sea conditions; as for processing technologies for impact resistance of the components and parts, a firm anti-loosening fixation manner is adopted for each part, and shock insulation connection is used for a control device; and as for processing technologies for impact resistance of mechanisms, dynamic analysis and structural strength design are conducted for the motion joint and structural parts under impact conditions, so the service life of the grab is prolonged.

Description

technical field [0001] The invention relates to the technical field of grabs, in particular to a deep-sea mobile TV grab based on a deep-sea mobile platform. Background technique [0002] Sampling on the seabed is much more difficult than sampling on land. Marine geologists need to see the relationship between different rock types and different mineralization types to grasp their formation processes and mechanisms. Therefore, visual survey and targeted sampling are key technical issues to be solved urgently in oceanic surveys. [0003] At present, the ocean survey work of the Ministry of Natural Resources of my country still focuses on the exploration and discovery of deep-sea hydrothermal activity areas, and the main survey method is still the combination of traditional hydrothermal detection camera drag body and TV grab. This survey and sampling method is too backward and has serious technical flaws: [0004] First, in the process of detecting hydrothermal areas, it is a...

AI Technical Summary

Problems solved by technology

This survey and sampling method is too backward and has serious technical flaws:

[0004] First, in the process of detecting hydrothermal areas, it is a relatively "blind" search process for the drag body to detect hydrothermal anomalies, because the drag body is dragged by cables and cannot move controllably on the seabed. Even if hydrothermal anomalies are found, It is also difficult to complete controllable intelligent search and sampling in a small area

[0005] Second, the sampling process is difficult to accurately locate and finely sample in a small area. Although the ultra-short baseline can be equipped for underwater positioning during the tow body detection, due to the different operation methods of the tow body and the TV grab and the error of the ultra-short baseline itself, etc. factors, it is still difficult to use a TV grab to sample the location where the hydrothermal anomaly is found, and it is still difficult to find the location of the hydrothermal anomaly. At the same time, because the TV grab does not have small-scale intelligent search capabilities, it can only rely on the power of the ship. Repeated searches in a small area for positioning have high requirements on the dynamic positioning performance of the ship, and have little effect

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