Automatic reversing seawater supercharger capable of being applied to deep sea environment

Abstract

The invention aims to provide an automatic reversing seawater supercharger capable of being applied to the deep sea environment. The automatic reversing seawater supercharger is composed of a bi-directional plunger cylinder, an automatic reversing mechanism and a check valve. A rod cavity of the plunger cylinder is a high pressure cavity, a rodless cavity is a low pressure cavity, a hydraulic reversing valve core is installed on an end cover of the low pressure cavity and moves to the limit position through a plunger so that the valve core is triggered, a reversing valve is driven hydraulically to achieve automatic reversing, and the movement direction of the plunger is changed. Besides a flow channel that passes through the plunger cylinder, the supercharger is further provided with a low pressure bypass flow channel. Pipelines of the supercharger are in external pressure resistant connection, flow supply can be performed directly for a system through a bypass when the pressure is low, flow supply can be performed for the system through secondary pressurization of the supercharger when the pressure is high, double-way supply of flow of a hydraulic system is achieved, and the working efficiency is improved. The supercharger is of a bi-directional effect plunger automatic reversing structure and has the advantages of flow supply continuity and low pulsation compared with an existing unidirectional effect plunger reciprocating type supercharger.

Description

technical field [0001] The invention relates to an underwater robot, in particular to a hydraulic system for adjusting the buoyancy of the underwater robot. Background technique [0002] With the development of marine engineering, underwater robots have been widely used. Due to the requirement of low energy consumption for underwater robots, buoyancy adjustment devices have received extensive attention. The seawater pump type buoyancy adjustment system is more suitable for large diving depth operations. The hydraulic power source needs to meet the adjustment requirements of low energy consumption, high pressure and high precision. High-pressure seawater plunger pumps are very common in the market, but in view of their minimum flow requirements under high-pressure conditions, they cannot be adjusted in a small flow range under high-pressure environments, and they are all land-use products, so the drive components are required to provide greater power. Having a hydraulic po...

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Problems solved by technology

[0003] In the article "Research and Design of Automatic Continuous Hydraulic Booster" published in the journal "Hydraulic and Starting", a hydraulic booster that can be continuously boosted is developed. Pull the switching valve through the chain. In the literature, the supercharger uses oil as the medium and is intended for continuous supercharging, which cannot be applied in deep sea. Empty travel, large flow pulsation and pressure pulsation

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