A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Adjacent vehicle driving switching valve, hydraulic system and excavator
The invention relates to the technical field of hydraulic pressure, in order to solve the problem that hydraulic driving equipment loses the moving capacity due to power failure, the invention provides an adjacent vehicle driving switching valve, a hydraulic system and an excavator, and in the adjacent vehicle driving switching valve, two oil ports of a first switching valve are correspondingly communicated with an external working oil port and a first oil port of a first one-way conducting valve; the second oil port of the first one-way conducting valve is communicated with the working oil outlet; two oil ports of the second switch valve are correspondingly communicated with the oil return inlet and the oil return outlet; two oil ports of the second one-way conducting valve are correspondingly communicated with the working oil inlet and the working oil outlet; the working oil inlet is communicated with the hydraulic control end of the first switch valve and an oil inlet of the first one-way valve, and an oil outlet of the first one-way valve is communicated with an external working oil port; an oil inlet of the first pressure reducing valve is communicated with a second oil port of the first switch valve, and an oil outlet of the first pressure reducing valve is communicated with a pilot oil supply port and a hydraulic control end of the second switch valve; and the external oil return port is communicated with the first oil port of the second switch valve. The device is simple in structure and convenient to operate.
本发明涉及液压技术领域，为解决液压驱动设备因动力故障丧失移动能力的问题，本发明构造一种邻车驱动切换阀、液压系统和挖掘机，其中邻车驱动切换阀中第一开关阀两油口对应与外部工作油口和第一单向导通阀第一油口连通；第一单向导通阀第二油口与工作油出口连通；第二开关阀两油口对应与回油入口和回油出口连通；第二单向导通阀两油口对应与工作油入口和工作油出口连通；工作油入口与第一开关阀的液控端和第一单向阀进油口连通，第一单向阀出油口与外部工作油口连通；第一减压阀进油口与第一开关阀第二油口连通，第一减压阀出油口与第二开关阀液控端和先导供油口连通；外部回油口与第二开关阀第一油口连通。本发明结构简单，方便操作。
Adjacent vehicle driving switching valve, hydraulic system and excavator
The invention relates to the technical field of hydraulic pressure, in order to solve the problem that hydraulic driving equipment loses the moving capacity due to power failure, the invention provides an adjacent vehicle driving switching valve, a hydraulic system and an excavator, and in the adjacent vehicle driving switching valve, two oil ports of a first switching valve are correspondingly communicated with an external working oil port and a first oil port of a first one-way conducting valve; the second oil port of the first one-way conducting valve is communicated with the working oil outlet; two oil ports of the second switch valve are correspondingly communicated with the oil return inlet and the oil return outlet; two oil ports of the second one-way conducting valve are correspondingly communicated with the working oil inlet and the working oil outlet; the working oil inlet is communicated with the hydraulic control end of the first switch valve and an oil inlet of the first one-way valve, and an oil outlet of the first one-way valve is communicated with an external working oil port; an oil inlet of the first pressure reducing valve is communicated with a second oil port of the first switch valve, and an oil outlet of the first pressure reducing valve is communicated with a pilot oil supply port and a hydraulic control end of the second switch valve; and the external oil return port is communicated with the first oil port of the second switch valve. The device is simple in structure and convenient to operate.
本发明涉及液压技术领域，为解决液压驱动设备因动力故障丧失移动能力的问题，本发明构造一种邻车驱动切换阀、液压系统和挖掘机，其中邻车驱动切换阀中第一开关阀两油口对应与外部工作油口和第一单向导通阀第一油口连通；第一单向导通阀第二油口与工作油出口连通；第二开关阀两油口对应与回油入口和回油出口连通；第二单向导通阀两油口对应与工作油入口和工作油出口连通；工作油入口与第一开关阀的液控端和第一单向阀进油口连通，第一单向阀出油口与外部工作油口连通；第一减压阀进油口与第一开关阀第二油口连通，第一减压阀出油口与第二开关阀液控端和先导供油口连通；外部回油口与第二开关阀第一油口连通。本发明结构简单，方便操作。
Adjacent vehicle driving switching valve, hydraulic system and excavator
邻车驱动切换阀、液压系统和挖掘机
WANG YUAN (author) / GAO GUOJUN (author) / LI JING (author) / ZHU JIACHENG (author) / WU GUANHUA (author) / MA SHUFENG (author) / ZENG RUILIN (author) / HE WANG (author)
2024-12-31
Patent
Electronic Resource
Chinese
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