Quiet buoyancy adjusting device for underwater vehicle

Abstract

The invention provides a quiet buoyancy adjusting device for an underwater vehicle, which can greatly increase the buoyancy adjusting range and facilitates underwater exploration work of the underwater vehicle. The device comprises a metal ball body, the metal ball body is provided with an opening part; the metal ball body is filled with phase change wax, the open end of the metal ball body is communicated with a metal cylindrical shell through a metal connecting pipeline, an integrated piston is plugged into the metal connecting pipeline from the lower part of the metal cylindrical shell, andthe diameter of the metal cylindrical shell is greater than that of the metal connecting pipeline.

Description

technical field [0001] The invention relates to the technical field of underwater robots, in particular to a quiet buoyancy adjusting device for an underwater vehicle. Background technique [0002] The underwater vehicle is an underwater robot that can meet the needs of long-term and large-scale ocean exploration, and the buoyancy adjustment mechanism is its core component. By changing the drainage volume of the external skin bag, the overall drainage volume is changed, providing power for the underwater vehicle, and realizing the pitching motion by changing its own net buoyancy; when the underwater vehicle dives, the buoyancy adjustment mechanism increases by increasing The volume of the water discharged by itself makes the buoyancy of the body greater than the body's own gravity, and the underwater vehicle begins to float; when the underwater vehicle begins to float, the buoyancy adjustment mechanism reduces the volume of the water it discharges itself, so that the body re...

AI Technical Summary

Problems solved by technology

The third is the heat engine method driven by the temperature difference of the seawater layer, but the above-mentioned buoyancy adjustment technology generally has some shortcomings: large vibration and noise, poor concealment, relatively high cost, and high energy consumption of the buoyancy adjustment pump. Short battery life, etc.

[0003] In response to the above shortcomings, a new technology is currently used: the use of solid-liquid expansion phase-change wax to realize the buoyancy adjustment of underwater vehicles, which can use the thermal expansion and contraction of the solid-liquid expansion phase-change wax to adjust the underwater vehicle's buoyancy. The buoyancy of the aircraft has the advantages of low cost, quiet buoyancy adjustment, good small concealment performance, and strong endurance. However, in actual work, the expansion phase change wax is directly encapsulated into the high-elastic skin bag, and the maximum volume expansion is only 20%, the buoyancy adjustment range is limited, which also restricts the further application of expanding phase change wax on underwater vehicles

Images