Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-way valve, hydraulic system and engineering machinery
The invention discloses a multi-way valve, a hydraulic system and engineering machinery. The multi-way valve comprises a head link, a first working link, a second working link and a tail link, through the design of the connection position of the pressure compensation valve and the control oil way in the working unit loop, the pressure differences of the main valve element oil inlet valve ports of the working units are equal during composite action, it is ensured that the flow of the working units is only related to the opening degrees of the main valve element oil inlet valve ports in the flow saturation state, proportional shunting of the system is achieved, and the reliability of the system is improved. Good coordination of the whole machine is guaranteed, inter-linkage flow regeneration of bucket return oil to movable arm descending oil inlet is achieved at the same time, and rapid action of movable arm descending is guaranteed on the premise that a small cavity of a movable arm oil cylinder does not suck air.
本发明公开了一种多路阀、液压系统及工程机械，包括包括首联、第一工作联、第二工作联以及尾联；本发明通过在工作联回路中对压力补偿阀连接位置和控制油路的设计，使得复合动作时各工作联主阀芯进油阀口压差相等，确保在流量饱和状态下各工作联流量只与主阀芯进油阀口的开度有关，实现了系统比例分流，确保了整机良好的协调性，同时实现了铲斗回油对动臂下降进油的联间流量再生，在动臂油缸小腔无吸空的前提下保证了动臂下降的快速动作。
Multi-way valve, hydraulic system and engineering machinery
The invention discloses a multi-way valve, a hydraulic system and engineering machinery. The multi-way valve comprises a head link, a first working link, a second working link and a tail link, through the design of the connection position of the pressure compensation valve and the control oil way in the working unit loop, the pressure differences of the main valve element oil inlet valve ports of the working units are equal during composite action, it is ensured that the flow of the working units is only related to the opening degrees of the main valve element oil inlet valve ports in the flow saturation state, proportional shunting of the system is achieved, and the reliability of the system is improved. Good coordination of the whole machine is guaranteed, inter-linkage flow regeneration of bucket return oil to movable arm descending oil inlet is achieved at the same time, and rapid action of movable arm descending is guaranteed on the premise that a small cavity of a movable arm oil cylinder does not suck air.
本发明公开了一种多路阀、液压系统及工程机械，包括包括首联、第一工作联、第二工作联以及尾联；本发明通过在工作联回路中对压力补偿阀连接位置和控制油路的设计，使得复合动作时各工作联主阀芯进油阀口压差相等，确保在流量饱和状态下各工作联流量只与主阀芯进油阀口的开度有关，实现了系统比例分流，确保了整机良好的协调性，同时实现了铲斗回油对动臂下降进油的联间流量再生，在动臂油缸小腔无吸空的前提下保证了动臂下降的快速动作。
Multi-way valve, hydraulic system and engineering machinery
多路阀、液压系统及工程机械
XUE YUAN (Autor:in) / ZHAI HAIYAN (Autor:in) / XING HONGBING (Autor:in)
12.01.2024
Patent
Elektronische Ressource
Chinesisch
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