Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic system for leveling oil cylinder of face shovel hydraulic excavator and control method
The invention belongs to the technical field of excavators, and particularly relates to a hydraulic system for a leveling oil cylinder of a face shovel hydraulic excavator and a control method, the hydraulic system comprises a two-position four-way reversing valve, a three-position four-way reversing valve I and a three-position four-way reversing valve II; a first working oil port of the three-position four-way reversing valve I is communicated with a large cavity of the movable arm oil cylinder, and a second working oil port of the three-position four-way reversing valve I is communicated with a small cavity of the movable arm oil cylinder; a two-position four-way reversing valve is arranged between the movable arm oil cylinder and the leveling oil cylinder; when the leveling oil cylinder is located at the initial position, the large cavity of the movable arm oil cylinder is communicated with the large cavity of the leveling oil cylinder, and the small cavity of the movable arm oil cylinder is communicated with the small cavity of the leveling oil cylinder; when the leveling oil cylinder is located at the working position, the large cavity of the movable arm oil cylinder is communicated with the small cavity of the leveling oil cylinder, and the small cavity of the movable arm oil cylinder is communicated with the large cavity of the leveling oil cylinder. The two-position four-way reversing valve is used for accurately regulating and controlling the action of the leveling oil cylinder, and the auxiliary effect of the leveling oil cylinder under different actions of the excavator is fully exerted.
本发明属于挖掘机技术领域，具体涉及一种用于正铲液压挖掘机调平油缸的液压系统及控制方法，该液压系统包括二位四通换向阀、三位四通换向阀Ⅰ和三位四通换向阀Ⅱ；所述三位四通换向阀Ⅰ的第一工作油口与动臂油缸的大腔连通，三位四通换向阀Ⅰ的第二工作油口与动臂油缸的小腔连通；动臂油缸与调平油缸间设有二位四通换向阀；调平油缸处于初始位时，动臂油缸的大腔与调平油缸的大腔连通，动臂油缸的小腔与调平油缸的小腔连通；调平油缸处于工作位时，动臂油缸的大腔与调平油缸的小腔连通，动臂油缸的小腔与调平油缸的大腔连通。本发明通过二位四通换向阀对调平油缸动作的精准调控，充分发挥了调平油缸在挖掘机不同动作下的辅助作用。
Hydraulic system for leveling oil cylinder of face shovel hydraulic excavator and control method
The invention belongs to the technical field of excavators, and particularly relates to a hydraulic system for a leveling oil cylinder of a face shovel hydraulic excavator and a control method, the hydraulic system comprises a two-position four-way reversing valve, a three-position four-way reversing valve I and a three-position four-way reversing valve II; a first working oil port of the three-position four-way reversing valve I is communicated with a large cavity of the movable arm oil cylinder, and a second working oil port of the three-position four-way reversing valve I is communicated with a small cavity of the movable arm oil cylinder; a two-position four-way reversing valve is arranged between the movable arm oil cylinder and the leveling oil cylinder; when the leveling oil cylinder is located at the initial position, the large cavity of the movable arm oil cylinder is communicated with the large cavity of the leveling oil cylinder, and the small cavity of the movable arm oil cylinder is communicated with the small cavity of the leveling oil cylinder; when the leveling oil cylinder is located at the working position, the large cavity of the movable arm oil cylinder is communicated with the small cavity of the leveling oil cylinder, and the small cavity of the movable arm oil cylinder is communicated with the large cavity of the leveling oil cylinder. The two-position four-way reversing valve is used for accurately regulating and controlling the action of the leveling oil cylinder, and the auxiliary effect of the leveling oil cylinder under different actions of the excavator is fully exerted.
本发明属于挖掘机技术领域，具体涉及一种用于正铲液压挖掘机调平油缸的液压系统及控制方法，该液压系统包括二位四通换向阀、三位四通换向阀Ⅰ和三位四通换向阀Ⅱ；所述三位四通换向阀Ⅰ的第一工作油口与动臂油缸的大腔连通，三位四通换向阀Ⅰ的第二工作油口与动臂油缸的小腔连通；动臂油缸与调平油缸间设有二位四通换向阀；调平油缸处于初始位时，动臂油缸的大腔与调平油缸的大腔连通，动臂油缸的小腔与调平油缸的小腔连通；调平油缸处于工作位时，动臂油缸的大腔与调平油缸的小腔连通，动臂油缸的小腔与调平油缸的大腔连通。本发明通过二位四通换向阀对调平油缸动作的精准调控，充分发挥了调平油缸在挖掘机不同动作下的辅助作用。
Hydraulic system for leveling oil cylinder of face shovel hydraulic excavator and control method
用于正铲液压挖掘机调平油缸的液压系统及控制方法
ZHANG ZHIYANG (Autor:in) / WANG YONG (Autor:in) / WANG CHUNLEI (Autor:in) / ZHANG SHENGXIA (Autor:in) / WANG SHANSHAN (Autor:in) / LIU YONGCAN (Autor:in) / FU GUISHAN (Autor:in) / ZHANG CONGCONG (Autor:in) / QU LIHONG (Autor:in) / WANG YUNXIAN (Autor:in)
23.09.2022
Patent
Elektronische Ressource
Chinesisch
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