Buoyancy adjusting device for large-depth underwater robot

Abstract

The invention relates to a buoyancy adjusting device for a large-depth underwater robot. The adjusting amount of hydraulic oil of the buoyancy adjusting device is detected by detecting changes of thetemperature and the pressure of inert gas in a closed cavity; and the inert gas with positive pressure is poured into an inner leather bag sealing barrel, so that an inlet of a high-pressure plunger pump has positive pressure, the problem that the self-suction capacity of the high-pressure plunger pump is poor is solved, and the working efficiency of the high-pressure plunger pump is improved. Double-pump combination is adopted, and different pumps are adopted for outward oil discharge and inward oil return, so that the energy consumption of a system is reduced, and the corresponding speed during low-pressure oil return is increased. A direct-current motor and the high-pressure plunger pump are arranged in parallel, so that the structure is more compact; and the high-pressure plunger pumpis installed in an oil immersion manner, the structural characteristics of the high-pressure plunger pump are fully combined, the installation size is minimized, the oil absorption efficiency is improved, and meanwhile the space is saved. According to the buoyancy adjusting device, through the structure design that a whole cage-shaped frame is matched with a core shaft, the stability of the wholestructure is met, and the light weight of the whole structure is achieved.

Description

technical field [0001] The invention relates to a buoyancy regulating device, in particular to a buoyancy regulating device for a deep underwater robot. Background technique [0002] Among the current research on various underwater robots, AUV (autonomous underwater robot), underwater glider, multi-functional buoys, etc. are hot spots; the research scope is also relatively wide, including both applied research and basic research, from economical to functional Various types, both military and civilian, covering various types of unmanned underwater vehicles. In fact, the above-mentioned underwater robot is especially suitable for hydrological water body observation, seabed search, target detection and recognition, observation of environmental background noise, topographic mapping, etc. It has strong endurance, large diving depth, and can enter complex marine environments. In the future, it will develop in the direction of deeper, farther and more powerful. [0003] The above...

AI Technical Summary

Problems solved by technology

For underwater robots with propulsion devices, if the impact caused by buoyancy is not eliminated, thrust is always needed to balance the remaining buoyancy of this part, and the endurance of underwater robots will be greatly reduced. In severe cases, underwater robots will not be able to Normal dive to specified depth

Images