Oil-hydraulic buoyancy adjustment device and method

A buoyancy adjustment and hydraulic technology, applied in buoys, transportation and packaging, ships, etc., can solve the problems of affecting the stability of the device, unused deep-sea pressure, complex system structure, etc., to improve work efficiency, solve miniaturization and deep diving The effect of eliminating technical bottlenecks and solving energy-saving technical bottlenecks

CN106143847BActive Publication Date: 2018-01-30OCEAN UNIV OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-01-30

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Abstract

The invention discloses a hydraulic-oil buoyancy adjusting device and method. The device comprises a casing, wherein the casing is filled with gas of certain pressure; an outer container accommodating hydraulic oil is arranged outside the casing, and an inner container accommodating hydraulic oil, a first pilot operated check valve, a first container accommodating hydraulic oil, a two-way hydraulic pump-motor, a second container accommodating hydraulic oil and a second pilot operated check valve are arranged in the casing; the inner container and the outer container are both elastic and flexible containers, and the volume of the elastic and flexible containers changes along with the change of volume of the hydraulic oil in the elastic and flexible containers; a motor connected with the two-way hydraulic pump-motor is further arranged in the casing. According to the hydraulic-oil buoyancy adjusting device and method, buoyancy is adjusted by changing the volume of the outer container, and accordingly automatic submergence, floating and depth control of equipment including underwater robots, buoys, bathyscaphs, gliders and the like are realized; the water depth pressure energy is fully used, the work efficiency of the hydraulic-oil buoyancy adjusting device is improved, working pressure required by the hydraulic pump and pressure borne by the casing are reduced, the weight and the volume of the casing are reduced, and conditions are created for further increasing submergence depth.
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Description

technical field

[0001] The invention belongs to the field of buoyancy adjustment devices, and in particular relates to an oil-hydraulic buoyancy adjustment device and method for realizing automatic submersion, ascent and depth-fixing control of underwater robots, buoys, deep submersibles, gliders and other equipment in the field. 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 e...

Examples

Embodiment 1

[0034] Example 1, such as Figure 4 As shown, the present embodiment discloses an oil-hydraulic buoyancy adjusting device, and the device includes a housing 41 filled with an inert gas of a certain pressure; an outer container 42 containing hydraulic oil is arranged outside the housing 41, The housing 41 is provided with an inner container 43 containing hydraulic oil, a first hydraulically controlled check valve 44, a first container 45 containing hydraulic oil, a two-way hydraulic pump-motor 46, a second container 47 containing hydraulic oil, and a second hydraulic oil. control check valve 48; the inner container 43 and the outer container 42 are elastic soft containers, and the volume of the elastic soft container changes with the volume of hydraulic oil contained in it; The valve 44, the first container 45, the two-way hydraulic pump-motor 46, the second container 47, and the second hydraulically controlled one-way valve 48 communicate with the outer container 42 so as to t...