A Deep Sea Omnidirectional Mobile TV Grab

Abstract

The invention discloses a deep-sea omnidirectional mobile TV grab, which includes a frame, a propulsion mechanism, an ultra-short baseline positioning mechanism, a three-point laser ranging mechanism, an underwater power supply mechanism, a sampling bucket body, a complete machine control mechanism, and a hydraulic mechanism As for the camera mechanism, the frame includes an upper frame and a lower frame, the upper frame and the lower frame are detachably connected, and the propulsion mechanism includes four propellers. In the present invention, through the cooperation of the propulsion mechanism, the ultra-short baseline positioning mechanism and the three-point laser ranging mechanism, the equipment can be accurately positioned underwater. According to the calculated height from the ground and the size of the sample, the four propellers cooperate with each other to realize 360° arbitrary The horizontal movement of the direction, the sampling position is flexible and accurate, and the design of the upper frame and the lower frame can be separated. When the equipment encounters an accident on the seabed, the lower frame will be released by releasing the oil cylinder to ensure the smooth operation of the upper frame and the main components. Recycle.

Description

technical field [0001] The invention relates to the technical field of deep-sea detection equipment, in particular to a deep-sea omnidirectional mobile TV grab. Background technique [0002] The deep-sea TV grab system is one of the most important means for the environmental investigation and deep-sea sampling of mineral resources such as polymetallic nodules, cobalt-rich crusts, hydrothermal sulfidation, natural gas hydrates, and seabed rare earths in my country's oceans. The similar sampling equipment used mainly relies on imports. In 2003, with the support of the National High-tech Research and Development Program (863 Program), my country successfully developed the first deep-sea TV grab suitable for submarine cable observation and sampling in 6000m deep-water operations. In the past ten years, although the deep-sea TV grab has been updated and various technical indicators are becoming more and more mature, with the rapid development of domestic and international science...

AI Technical Summary

Problems solved by technology

[0003] With traditional TV grabs, when sampling, the staff usually sinks the grab underwater to grab samples after pre-setting the target position on the sampling ship, but when the grab is lowered, the grab and the sampling ship will Impacted by ocean currents and wind waves, its normal release is affected, causing the position of the grab to shift, and the equipment can only be dragged by the sampling ship to move in a fixed direction under water, and the direction adjustment is inflexible; the seabed terrain is complex, when the equipment In the event of an accident on the seabed, when the bucket body is stuck by rocks, the connection between the dragging device and the grab bucket on the sampling ship will be subject to a greater test, which is easy to be damaged, the overall replacement and maintenance costs are high, and even the equipment will be lost.

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