An oil-hydraulic buoyancy adjustment system and method

Abstract

The invention discloses an oil hydraulic buoyancy adjusting system. The system comprises a shell; the shell is filled with gas with a certain pressure; an outer container for holding hydraulic oil is arranged out of the shell; an inner container for holding the hydraulic oil, a two-position two-way electromagnetic directional valve and a two-way hydraulic pump-motor are arranged in the shell; the inner container and the outer container are connected through the two-position two-way electromagnetic directional valve and the two-way hydraulic pump-motor for mutual hydraulic oil transfer; and a motor-generator connected with the two-way hydraulic pump-motor, a control system for controlling the motor-generator to work and a rechargeable power supply for storing electric energy generated by the motor-generator and supplying electricity to all devices in the shell are also arranged in the shell. The oil hydraulic buoyancy adjusting system and method, disclosed by the invention, realize the diving and floating control of such underwater operation equipment as underwater robots through changing the volume of the outer container and adjusting the buoyancy.

Description

technical field [0001] The invention belongs to the field of buoyancy adjustment devices, in particular to an oil-hydraulic buoyancy adjustment system and method suitable for underwater robots, buoys, deep submersibles, underwater gliders and other underwater self-submerging and floating equipment. Background technique [0002] The hydraulic drive buoyancy adjustment systems disclosed in the prior art include oil hydraulic buoyancy adjustment type and water hydraulic buoyancy adjustment type. [0003] Chinese invention patent CN102079375 A, master's thesis "Development of Oil Bag Type Buoyancy Adjustment Device" (Huazhong University of Science and Technology, Fang Xu) discloses oil-hydraulic buoyancy adjustment system such as figure 1 As shown, it mainly includes inner and outer containers, one-way valves, electromagnetic reversing valves, two-way hydraulic pumps, motors, etc., wherein the outer container is a sealed cavity and placed in the environmental medium outside the ...

AI Technical Summary

Problems solved by technology

Although the water hydraulic technology is compatible with the marine environment, has the advantages of automatic compensation of sea depth pressure, low operating cost, and easy handling of the working medium, it requires multiple additional solenoid valves and one-way seawater pumps to complete the system's submersion and surfacing. , not only the system structure is complex, but also there are problems such as high pump working pressure, unused deep sea pressure energy, and large shell pressure

Images