A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a flow regeneration valve group, a hydraulic system and an excavator. The flow regeneration valve group comprises a main oil inlet, an oil return port, a first working port, a second working port, a back pressure valve, a first reversing valve, and a second reversing valve, wherein the back pressure valve is configured to be closed when the pressure of hydraulic oil introduced from the second working oil port by the first reversing valve is smaller than the first opening pressure of the back pressure valve, and at the moment, the second reversing valve is configured to guide the hydraulic oil of the second working oil port to the flow regeneration valve, so that the flow regeneration valve is opened to guide the hydraulic oil of the second working oil port to the first working oil port. The first reversing valve, the second reversing valve, the back pressure valve and the flow regeneration valve are mutually independent, the back pressure valve can adjust back pressure to open the flow regeneration valve, the flow regeneration valve can directly achieve flow regeneration, the through-flow surface is large, the flow regeneration efficiency is high, and the back pressure valve has the function of independently and continuously adjusting oil return back pressure.
本发明涉及一种流量再生阀组、液压系统及挖掘机。流量再生阀组包括：总进油口；回油口；第一工作油口；第二工作油口；背压阀；第一换向阀；以及第二换向阀；其中，所述背压阀被配置为在所述第一换向阀从所述第二工作油口引入的液压油的压力小于所述背压阀的第一开启压力时，所述背压阀关闭，此时，所述第二换向阀被配置为将所述第二工作油口的液压油引向所述流量再生阀，使所述流量再生阀打开，以将所述第二工作油口的液压油引向所述第一工作油口。第一换向阀、第二换向阀、背压阀和流量再生阀相互独立，背压阀可调节背压以打开流量再生阀，流量再生阀可直接实现流量再生，且通流面大，流量再生效率高，背压阀具有回油背压独立连续调节功能。
The invention relates to a flow regeneration valve group, a hydraulic system and an excavator. The flow regeneration valve group comprises a main oil inlet, an oil return port, a first working port, a second working port, a back pressure valve, a first reversing valve, and a second reversing valve, wherein the back pressure valve is configured to be closed when the pressure of hydraulic oil introduced from the second working oil port by the first reversing valve is smaller than the first opening pressure of the back pressure valve, and at the moment, the second reversing valve is configured to guide the hydraulic oil of the second working oil port to the flow regeneration valve, so that the flow regeneration valve is opened to guide the hydraulic oil of the second working oil port to the first working oil port. The first reversing valve, the second reversing valve, the back pressure valve and the flow regeneration valve are mutually independent, the back pressure valve can adjust back pressure to open the flow regeneration valve, the flow regeneration valve can directly achieve flow regeneration, the through-flow surface is large, the flow regeneration efficiency is high, and the back pressure valve has the function of independently and continuously adjusting oil return back pressure.
本发明涉及一种流量再生阀组、液压系统及挖掘机。流量再生阀组包括：总进油口；回油口；第一工作油口；第二工作油口；背压阀；第一换向阀；以及第二换向阀；其中，所述背压阀被配置为在所述第一换向阀从所述第二工作油口引入的液压油的压力小于所述背压阀的第一开启压力时，所述背压阀关闭，此时，所述第二换向阀被配置为将所述第二工作油口的液压油引向所述流量再生阀，使所述流量再生阀打开，以将所述第二工作油口的液压油引向所述第一工作油口。第一换向阀、第二换向阀、背压阀和流量再生阀相互独立，背压阀可调节背压以打开流量再生阀，流量再生阀可直接实现流量再生，且通流面大，流量再生效率高，背压阀具有回油背压独立连续调节功能。
Flow regeneration valve group, hydraulic system and excavator
流量再生阀组、液压系统及挖掘机
2021-10-08
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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