EHA driving plunger pump and control method thereof

Abstract

The invention discloses an EHA drive plunger pump and a control method thereof. The EHA driving plunger pump is composed of cylinder bodies, integrated flow distribution valves, a water outlet main pipe, oil distribution boxes, oil circuit blocks, servo motors, a base, a water inlet main pipe, cylinder barrels, pump set plungers, hydraulic cylinders, a supporting plate, hydraulic cylinder plungerrods, rod end ball bearings and the like. The EHA driving plunger pump adopts EHA as a driving device, the movement of the hydraulic cylinders are controlled through the bidirectional hydraulic pumpsso as to drive the pump set plungers to move, and the function of water suction and drainage is realized; through servo control, the positive rotation, reverse rotation and speed regulation operationof the motor can be controlled. When the pump set plungers reciprocate in a specific motion planning mode, one ends of plungers are in a water absorption working condition, the suction valve in the corresponding integrated flow distribution valves are opened, and the fluid is sucked into the working medium from the system main water suction pipe through flow guide channels in the cylinder bodies.According to the EHA drive plunger pump and the control method, the complex working condition of the ship pump can be met, and the application prospect of the EHA driving plunger pump system in the fields of naval vessels, deep sea exploration and the like is greatly improved.

Description

technical field [0001] The invention relates to an EHA-driven plunger pump, which is suitable for hydraulic systems using sea, fresh water, mineral oil, etc. as working media, and has wide application prospects in the fields of ships, deep-sea exploration, fire fighting, and the like. Background technique [0002] In various industrial installations and ship systems, pumps are the most widely used mechanical equipment. With the enlargement of ships and the diversification of ship functions, especially for the special working conditions of military ships, the volume and weight of ship hydraulic pumps, operating vibration and pipeline pulsation, small mechanical noise and fluid noise, sufficient Impact resistance, good corrosion resistance and abrasion resistance, as well as reliable sealing structure and sealing performance have put forward special requirements. [0003] At present, most of the power ends of traditional plunger pumps use hydraulic systems, crank linkages or ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of existing traditional marine pumps such as complex structure, heavy weight, difficult maintenance, large vibration and noise, and difficulty in realizing automatic control.

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