A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Movable arm hydraulic system and excavator
The embodiment of the invention discloses a movable arm hydraulic system and an excavator. The movable arm hydraulic system comprises two anti-explosion valves, two oil cylinders, an oil conveying module, a pressure compensation collecting module, a hydraulic control module, an oil conveying control module and a controller. A rodless cavity of each oil cylinder is communicated with an oil outlet of one anti-explosion valve, an oil inlet of each anti-explosion valve is communicated with a first oil conveying path opening of the oil conveying module, rod cavities of the two oil cylinders and oil return openings of the anti-explosion valves are communicated with a second oil conveying path opening of the oil conveying module, and the oil conveying control module is communicated with the oil conveying module. The hydraulic control module is communicated with control ports of the anti-explosion valves, pressure detection ports of the two anti-explosion valves are communicated through the pressure compensation collection module, and the oil conveying module, the pressure compensation collection module and the hydraulic control module are all connected with the controller. According to the scheme, unbalance loading of the movable arm controlled by the two oil cylinders can be avoided, the movable arm can be locked at a fixed position in time when the movable arm fails in operation, and the stability and safety of operation of the movable arm hydraulic system are improved.
本发明实施例公开了一种动臂液压系统和挖掘机。该动臂液压系统包括两个防爆阀、两个油缸、输油模块、压力补偿采集模块、液压控制模块、输油控制模块以及控制器；每一油缸的无杆腔与一防爆阀的出油口连通，每一防爆阀的进油口与输油模块的第一输油路径口连通，两个油缸的有杆腔和防爆阀的回油口均与输油模块的第二输油路径口连通，输油控制模块与输油模块连通；液压控制模块与防爆阀的控制口连通，两个防爆阀的压力检测口通过压力补偿采集模块连通，输油模块、压力补偿采集模块以及液压控制模块均与控制器连接。本方案可以避免两个油缸控制动臂出现偏载，在动臂运行故障时可以及时将动臂锁定在固定位置，提高了动臂液压系统运行的稳定性和安全性。
Movable arm hydraulic system and excavator
The embodiment of the invention discloses a movable arm hydraulic system and an excavator. The movable arm hydraulic system comprises two anti-explosion valves, two oil cylinders, an oil conveying module, a pressure compensation collecting module, a hydraulic control module, an oil conveying control module and a controller. A rodless cavity of each oil cylinder is communicated with an oil outlet of one anti-explosion valve, an oil inlet of each anti-explosion valve is communicated with a first oil conveying path opening of the oil conveying module, rod cavities of the two oil cylinders and oil return openings of the anti-explosion valves are communicated with a second oil conveying path opening of the oil conveying module, and the oil conveying control module is communicated with the oil conveying module. The hydraulic control module is communicated with control ports of the anti-explosion valves, pressure detection ports of the two anti-explosion valves are communicated through the pressure compensation collection module, and the oil conveying module, the pressure compensation collection module and the hydraulic control module are all connected with the controller. According to the scheme, unbalance loading of the movable arm controlled by the two oil cylinders can be avoided, the movable arm can be locked at a fixed position in time when the movable arm fails in operation, and the stability and safety of operation of the movable arm hydraulic system are improved.
本发明实施例公开了一种动臂液压系统和挖掘机。该动臂液压系统包括两个防爆阀、两个油缸、输油模块、压力补偿采集模块、液压控制模块、输油控制模块以及控制器；每一油缸的无杆腔与一防爆阀的出油口连通，每一防爆阀的进油口与输油模块的第一输油路径口连通，两个油缸的有杆腔和防爆阀的回油口均与输油模块的第二输油路径口连通，输油控制模块与输油模块连通；液压控制模块与防爆阀的控制口连通，两个防爆阀的压力检测口通过压力补偿采集模块连通，输油模块、压力补偿采集模块以及液压控制模块均与控制器连接。本方案可以避免两个油缸控制动臂出现偏载，在动臂运行故障时可以及时将动臂锁定在固定位置，提高了动臂液压系统运行的稳定性和安全性。
Movable arm hydraulic system and excavator
动臂液压系统和挖掘机
SHI CHANGZENG (author) / CHI FENG (author) / GENG WEI (author) / GUO ZHIXUE (author) / DONG LIDUI (author) / ZHAO YANBIN (author)
2023-08-15
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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