Buoyancy adjustment device for gliders under deep water

Abstract

The invention discloses a buoyancy regulating device used for a deep-sea underwater glider. The buoyancy regulating device comprises a pressure-resistant shell. A low pressure pump assembly is mounted in the pressure resistant shell. An outer oil bag is fixed to the pressure-resistant shell. The low pressure pump assembly comprises a piston cylinder, a bearing pedestal, a gear cover and a lead screw guide rail which are fixedly connected in sequence coaxially. Two bearings are mounted in the bearing pedestal. A lead screw nut is arranged in the inner rings of the two bearings, and the outer wall of the lead screw nut is fixedly connected with the inner rings of the two bearings. A drive gear in a transmission gear set is mounted on an output shaft of a direct current motor assembly. A driven gear in engaged fit with the drive gear is fixedly connected with the lead screw nut. The lead screw nut is in threaded connection with a lead screw. The movable end of a linear displacement sensor is connected with a piston. By adoption of the buoyancy regulating device, the inlet and outlet oil pressure is provided for a high pressure plunger pump, the internal structure is simplified, the internal space is saved, the number of oil circuit connectors is decreased, and the leakage risk is reduced.

Description

technical field [0001] The invention relates to a buoyancy regulating device, in particular to a buoyancy regulating device for a glider under deep sea water. Background technique [0002] To achieve long-term ocean monitoring, the underwater glider mainly relies on buoyancy to provide the driving force, so the buoyancy adjustment device is the core component of the entire device, and the working depth of the device also determines the working depth of the glider; In depth and long-sequence ocean monitoring, due to its special working nature, it is required that the buoyancy adjustment device can operate reliably in deep sea; most of the existing buoyancy adjustment devices of deep-sea gliders use a combination of low-pressure gear pump and high-pressure plunger pump. Realization, because the combination of two different pumps is not only complicated in structure and installation, but also requires more pipeline connections, which is likely to cause leakage of hydraulic oil;...

AI Technical Summary

Problems solved by technology

[0002] To achieve long-term ocean monitoring, the underwater glider mainly relies on buoyancy to provide the driving force, so the buoyancy adjustment device is the core component of the entire device, and the working depth of the device also determines the working depth of the glider; In depth and long-sequence ocean monitoring, due to its special working nature, it is required that the buoyancy adjustment device can operate reliably in deep sea; most of the existing buoyancy adjustment devices of deep-sea gliders use a combination of low-pressure gear pump and high-pressure plunger pump. Realization, because the combination of two different pumps is not only complicated in structure and installation, but also requires more pipeline connections, which is likely to cause leakage of hydraulic oil; neither the low-pressure gear pump nor the high-pressure plunger pump can achieve accurate metering of hydraulic oil, so additional Inner oil bag detection device

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