A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-way valve assembly, hydraulic system and land leveler
The invention provides a multi-way valve assembly, a hydraulic system and a land leveler. The multi-way valve assembly comprises an oil inlet channel, a return oil channel, a feedback oil channel, atleast one coupled valve body and an unloading valve, wherein each coupled valve body comprises a reversing valve and a pressure compensation valve, a first oil port of the reversing valve is connectedwith the oil inlet channel, a second oil port of the reversing valve is connected with the return oil channel, a working port of the reversing valve is connected with an execution element, an inlet of the pressure compensation valve is connected with a fourth oil port of the reversing valves, an outlet of the pressure compensation valve is connected with a third oil port of the reversing valve, and a spring cavity of the pressure compensation valve is connected with the feedback oil channel; and an inlet of the unloading valve is connected with the oil inlet channel, a spring cavity of the unloading valve is connected with the feedback oil channel, and an outlet of the unloading valve is connected with the return oil channel. The unloading valve is integrated on the multi-way valve assembly to realize the proportional performance of the multiple coupled valve bodies. There is no need to arrange an independent control valve or an independent variable pump. On the basis of ensuring thecost of the multi-way valve assembly, the reliability of the multi-way valve assembly is effectively improved.
本发明提供了一种多路阀组件、液压系统和平地机，其中，多路阀组件包括：进油油道；回油油道；反馈油道；至少一个联阀体，联阀体包括：换向阀，换向阀的第一油口与进油油道连接，换向阀的第二油口与回油油道连接，换向阀的工作口与执行元件连接；压力补偿阀，压力补偿阀的进口与换向阀的第四油口连接，压力补偿阀的出口与换向阀的第三油口连接，压力补偿阀的弹簧腔与反馈油道连接；卸荷阀，卸荷阀的进口与进油油道连接，卸荷阀的弹簧腔与反馈油道连接，卸荷阀的出口与回油油道连接。从而通过在多路阀组件上集成卸荷阀，实现多个联阀体比例性能，而且无需设置单独的控制阀或变量泵，在保证多路阀组件成本的同时，有效提升可靠性。
Multi-way valve assembly, hydraulic system and land leveler
The invention provides a multi-way valve assembly, a hydraulic system and a land leveler. The multi-way valve assembly comprises an oil inlet channel, a return oil channel, a feedback oil channel, atleast one coupled valve body and an unloading valve, wherein each coupled valve body comprises a reversing valve and a pressure compensation valve, a first oil port of the reversing valve is connectedwith the oil inlet channel, a second oil port of the reversing valve is connected with the return oil channel, a working port of the reversing valve is connected with an execution element, an inlet of the pressure compensation valve is connected with a fourth oil port of the reversing valves, an outlet of the pressure compensation valve is connected with a third oil port of the reversing valve, and a spring cavity of the pressure compensation valve is connected with the feedback oil channel; and an inlet of the unloading valve is connected with the oil inlet channel, a spring cavity of the unloading valve is connected with the feedback oil channel, and an outlet of the unloading valve is connected with the return oil channel. The unloading valve is integrated on the multi-way valve assembly to realize the proportional performance of the multiple coupled valve bodies. There is no need to arrange an independent control valve or an independent variable pump. On the basis of ensuring thecost of the multi-way valve assembly, the reliability of the multi-way valve assembly is effectively improved.
本发明提供了一种多路阀组件、液压系统和平地机，其中，多路阀组件包括：进油油道；回油油道；反馈油道；至少一个联阀体，联阀体包括：换向阀，换向阀的第一油口与进油油道连接，换向阀的第二油口与回油油道连接，换向阀的工作口与执行元件连接；压力补偿阀，压力补偿阀的进口与换向阀的第四油口连接，压力补偿阀的出口与换向阀的第三油口连接，压力补偿阀的弹簧腔与反馈油道连接；卸荷阀，卸荷阀的进口与进油油道连接，卸荷阀的弹簧腔与反馈油道连接，卸荷阀的出口与回油油道连接。从而通过在多路阀组件上集成卸荷阀，实现多个联阀体比例性能，而且无需设置单独的控制阀或变量泵，在保证多路阀组件成本的同时，有效提升可靠性。
Multi-way valve assembly, hydraulic system and land leveler
多路阀组件、液压系统和平地机
ZHENG PENGFEI (author) / LI XIAOFENG (author) / CHEN CHONG (author)
2020-11-13
Patent
Electronic Resource
Chinese
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