The invention provides an energy storage type servo hydraulic high-speed proportional loading hydraulic system and method. An inlet of a high-pressure electric pump set is connected with an oil tank, and an outlet of the high-pressure electric pump set is connected with a first high-pressure electromagnetic valve and a pressure reducing valve through a first one-way valve and a filtering module; an energy accumulator group and a pilot pressure regulating energy accumulator are connected behind the first high-pressure electromagnetic valve; the energy accumulator group is connected with a rod cavity of the loading hydraulic cylinder through a proportional servo pilot valve; the pilot pressure regulating energy accumulator is connected with the control end of the proportional servo pilot valve; the pressure reducing valve is connected with the loading hydraulic cylinder through a three-position four-way electromagnetic valve and a hydraulic lock; and a proportional overflow valve and a loading cylinder buffer overflow valve are arranged between the hydraulic lock and the loading hydraulic cylinder. When the large-flow proportional servo valve is used for loading, the opening degree of the large-flow proportional servo valve is accurately controlled, high-pressure oil stored in the energy accumulator set is rapidly released in a proportional mode, then the loading hydraulic cylinder is driven to achieve large-load acceleration traction, and the analog loading speed is achieved.
本发明提供了一种蓄能式伺服液压高速比例加载液压系统及方法,高压电动泵组的进口与油箱相连,高压电动泵组的出口通过第一单向阀、过滤模块与第一高压电磁阀以及减压阀相连;第一高压电磁阀之后连接有蓄能器组和先导调压蓄能器,蓄能器组通过比例伺服先导阀与加载液压缸的有杆腔相连;先导调压蓄能器与比例伺服先导阀的控制端相连;减压阀通过三位四通电磁阀和液压锁与加载液压缸相连;所述液压锁和加载液压缸之间安装有比例溢流阀和加载缸缓冲溢流阀。当用于加载时,通过精确控制大流量比例伺服阀的开度,将蓄能器组的高压储蓄油液进行比例快速释放,进而驱动加载液压缸实现大载荷的加速牵引,以达到模拟加载速度。
Energy storage type servo hydraulic high-speed proportional loading hydraulic system and method
一种蓄能式伺服液压高速比例加载液压系统及方法
2025-02-07
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
Propeller blade electro-hydraulic servo loading simulation device
European Patent Office | 2025
|European Patent Office | 2022
|