High-pressure seawater hydraulic pump for double-cone opposite-cone threaded rod

Abstract

The invention provides a high-pressure seawater hydraulic pump for a double-cone opposite-cone threaded rod, belonging to a volume type hydraulic pump. A core part of the high-pressure seawater hydraulic pump is a pair of cone-shaped threaded rods and a layer of bushing block with equal thickness. The two cone-shaped threaded rods with the same structure and size and the different rotating directions are symmetrically arranged at two sides of a universal coupling, and small ends of the two cone-shaped threaded rods are respectively connected with two ends of the universal coupling, so that a double-cone opposite structure is formed, and the thickness of each position on the same cross section of the bushing block is equal to one another; and a liquid passageway is formed on the cone-shaped threaded rod which is nearest to a discharge end and forms into an integrated seal chamber, and the passageway is communicated with a seal chamber and a discharge-end chamber. After the double-cone opposite structure is adopted, the whole structure of a screw pump is balanced in force application, so that the defects such as eccentric wear, leakage and the like caused by the unbalanced force application can be removed; and static pressure support is formed between the threaded rods and the bushing block, so that the threaded rod has the function of the static pressure support, therefore, the wear between the threaded rods and the bushing block can be reduced, the moving stability of the hydraulic pump can be improved, and the hydraulic pump is small in noise, long in service life, high in output pressure, stable in output flow, and small in pressure pulsation.

Description

Technical field [0001] The invention belongs to a positive displacement hydraulic pump, and relates to a double-cone opposed cone-screw high-pressure seawater hydraulic pump, which is particularly suitable for a hydraulic system using seawater as a working medium. Background technique [0002] In the process of marine resource development, marine equipment technology is the key, which directly affects the process and success of marine development. In order to improve the ability of deep-sea operations, complete underwater operations such as deep-sea exploration, seabed exploration, oil and gas and mineral resource development, seabed salvage, life-saving, marine platform and marine military installations construction, etc., improve underwater operation efficiency, reduce operation risk, and deep sea environment Corresponding seawater hydraulic transmission technology has become an important development direction and a key core technology for the development of marine equipment. ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the existing seawater hydraulic pumps, the present invention comprehensively considers the physical and chemical properties of the seawater working medium, and proposes a structure, working principle and work Double cone opposed cone screw high pressure seawater hydraulic pump with completely different performance

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