A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-way valve, hydraulic system and excavator
The invention relates to a hydraulic system and provides a multi-way valve which comprises a valve body, the valve body is provided with a first oil inlet P1, a second oil inlet P2, a main oil return port R1, a first middle-position oil way, a first oil supply way, a second middle-position oil way and a second oil supply way, the main oil return port R1 is connected with the main oil return way, and the second oil return port P2 is connected with the second oil supply way. The valve body comprises a first walking connector, a linear walking connector, a second walking connector, a rotary connector, a first movable arm connector, a second movable arm connector, a first bucket rod connector and a second bucket rod connector, a first oil inlet P1 and a second oil inlet P2 can supply oil to the working connectors, a movable arm regeneration oil way is arranged between a movable arm large cavity oil port Ab and the bucket rod connectors, and a movable arm regeneration oil way is arranged between the movable arm large cavity oil port Ab and the bucket rod connectors. A movable arm regeneration valve and a movable arm regeneration one-way valve are arranged on the movable arm regeneration oil way so that the movable arm regeneration valve can be controlled to be opened when the movable arm large cavity oil port Ab is in the oil return state, and oil liquid of the movable arm large cavity oil port Ab can sequentially flow through the movable arm regeneration valve and the movable arm regeneration one-way valve to be regenerated towards the bucket rod link. The invention further provides a hydraulic system and an excavator.
本发明涉及液压系统，提供一种多路阀，包括阀体，阀体上设置有第一进油口P1、第二进油口P2、主回油口R1、第一中位油路、第一供油油路、第二中位油路和第二供油油路，主回油口R1连接主回油油路，阀体包括第一行走联、直线行走联、第二行走联、回转联、第一动臂联、第二动臂联、第一斗杆联和第二斗杆联，第一进油口P1和第二进油口P2能够对上述工作联进行供油，其中，动臂大腔油口Ab与斗杆联之间设置有动臂再生油路，动臂再生油路上设置有动臂再生阀和动臂再生单向阀，以能够在动臂大腔油口Ab处于回油状态下，控制动臂再生阀打开，使动臂大腔油口Ab的油液依次流经动臂再生阀和动臂再生单向阀向斗杆联再生。本发明还提供一种液压系统及挖掘机。
Multi-way valve, hydraulic system and excavator
The invention relates to a hydraulic system and provides a multi-way valve which comprises a valve body, the valve body is provided with a first oil inlet P1, a second oil inlet P2, a main oil return port R1, a first middle-position oil way, a first oil supply way, a second middle-position oil way and a second oil supply way, the main oil return port R1 is connected with the main oil return way, and the second oil return port P2 is connected with the second oil supply way. The valve body comprises a first walking connector, a linear walking connector, a second walking connector, a rotary connector, a first movable arm connector, a second movable arm connector, a first bucket rod connector and a second bucket rod connector, a first oil inlet P1 and a second oil inlet P2 can supply oil to the working connectors, a movable arm regeneration oil way is arranged between a movable arm large cavity oil port Ab and the bucket rod connectors, and a movable arm regeneration oil way is arranged between the movable arm large cavity oil port Ab and the bucket rod connectors. A movable arm regeneration valve and a movable arm regeneration one-way valve are arranged on the movable arm regeneration oil way so that the movable arm regeneration valve can be controlled to be opened when the movable arm large cavity oil port Ab is in the oil return state, and oil liquid of the movable arm large cavity oil port Ab can sequentially flow through the movable arm regeneration valve and the movable arm regeneration one-way valve to be regenerated towards the bucket rod link. The invention further provides a hydraulic system and an excavator.
本发明涉及液压系统，提供一种多路阀，包括阀体，阀体上设置有第一进油口P1、第二进油口P2、主回油口R1、第一中位油路、第一供油油路、第二中位油路和第二供油油路，主回油口R1连接主回油油路，阀体包括第一行走联、直线行走联、第二行走联、回转联、第一动臂联、第二动臂联、第一斗杆联和第二斗杆联，第一进油口P1和第二进油口P2能够对上述工作联进行供油，其中，动臂大腔油口Ab与斗杆联之间设置有动臂再生油路，动臂再生油路上设置有动臂再生阀和动臂再生单向阀，以能够在动臂大腔油口Ab处于回油状态下，控制动臂再生阀打开，使动臂大腔油口Ab的油液依次流经动臂再生阀和动臂再生单向阀向斗杆联再生。本发明还提供一种液压系统及挖掘机。
Multi-way valve, hydraulic system and excavator
多路阀、液压系统及挖掘机
ZHOU QIDI (author) / ZHAO YONGXIA (author) / GUO KUN (author) / LI WENZHAO (author) / CHONG LI (author)
2024-03-01
Patent
Electronic Resource
Chinese
Excavator main valve, excavator hydraulic system and excavator
| European Patent Office | 2023