Buoyancy adjusting pump system for kilometric underwater glider

Abstract

The invention discloses a buoyancy adjusting pump system for a kilometric underwater glider. The buoyancy adjusting pump system comprises a piston cylinder and a transmission supporting cylinder whichare sequentially arranged in a cabin body from front to back in the longitudinal direction. The piston cylinder is provided with a front end opening communicating with the outside world. The rear endof the piston cylinder is fixedly connected with the transmission supporting cylinder. A corrugated expansion pipe and a piston which are coaxial with the piston cylinder are mounted in the piston cylinder. The corrugated expansion pipe is arranged in front of the piston, and the corrugated expansion pipe and the piston are arranged in an isolated mode. The corrugated expansion pipe is provided with a front end opening communicating with the outside world. The front end opening of the corrugated expansion pipe is fixed to the front end opening of the piston cylinder in a sealed mode. The rearend of the corrugated expansion pipe is provided with a back cover. A bellow-type oil bag is formed by the piston cylinder, the corrugated expansion pipe and the piston and is filled with hydraulic oil. A piston transmission mechanism is mounted in the transmission supporting cylinder. The buoyancy adjusting pump system can be suitable for the kilometric underwater glider and is large in displacement, high in speed, high in maneuverability and simple in structure.

Description

technical field [0001] The invention relates to a buoyancy regulating device of an underwater robot, in particular to a buoyancy regulating pump system of an underwater glider. Background technique [0002] The underwater glider is a new type of underwater vehicle that is driven by buoyancy, uses the movement of internal weights to adjust the navigation attitude, and uses the lift of the wings to make a zigzag profile movement in the water body. It can sail continuously in the water body for several months and cruise for several Thousands of kilometers have greatly expanded the horizons of human observation and access to the ocean, and provided new technical means for marine scientific research. [0003] The underwater glider changes the net buoyancy of the body relative to the surrounding seawater through the periodic oil absorption and oil discharge actions of the built-in buoyancy adjustment pump system, so as to realize its upward and downward movement in the water body....

AI Technical Summary

Problems solved by technology

The buoyancy adjustment pump system is the core component of the long-term operation of the underwater glider in the water body. Currently, the buoyancy adjustment pump system for the kilometer-level underwater glider is mostly composed of a miniature axial piston pump connected to the hydraulic oil pipe and valve parts. The oil absorption capacity of the plug pump is insufficient and the displacement is small. Usually, a primary booster pump needs to be installed, and the buoyancy adjustment process takes a long period, which is not conducive to improving the maneuverability of the underwater glider.

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