Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic control system for construction machine
A hydraulic control system for a construction machine includes a hydraulic pump group including a first hydraulic pump, a second hydraulic pump and a third hydraulic pump; a main control valve including a first spool group that controls a flow of pressurised fluid from the first hydraulic pump and the second hydraulic pump and that includes an operation apparatus spool, a driving spool and a merging spool, a second spool group that controls a flow of pressurised fluid from the third hydraulic pump and that includes a rotating spool, and a straight driving valve between the first spool group and the second spool group; a first pilot signal line connected to the operation apparatus spool that provides a supply path for a pilot pressurised fluid that is applied to switch the operation apparatus spool; a second pilot signal line connected to the driving spool that provides a supply path for a pilot pressurised fluid that is applied to switch the driving spool; and a direction changing valve on the second pilot signal line connecting the driving spool and a tank, that is connected to the first pilot signal line, and that is switched when the operation apparatus spool is switched so as to cut off the flow of a pilot pressurised fluid that is returning to the tank.
Hydraulic control system for construction machine
A hydraulic control system for a construction machine includes a hydraulic pump group including a first hydraulic pump, a second hydraulic pump and a third hydraulic pump; a main control valve including a first spool group that controls a flow of pressurised fluid from the first hydraulic pump and the second hydraulic pump and that includes an operation apparatus spool, a driving spool and a merging spool, a second spool group that controls a flow of pressurised fluid from the third hydraulic pump and that includes a rotating spool, and a straight driving valve between the first spool group and the second spool group; a first pilot signal line connected to the operation apparatus spool that provides a supply path for a pilot pressurised fluid that is applied to switch the operation apparatus spool; a second pilot signal line connected to the driving spool that provides a supply path for a pilot pressurised fluid that is applied to switch the driving spool; and a direction changing valve on the second pilot signal line connecting the driving spool and a tank, that is connected to the first pilot signal line, and that is switched when the operation apparatus spool is switched so as to cut off the flow of a pilot pressurised fluid that is returning to the tank.
Hydraulic control system for construction machine
SON YOUNGJIN (Autor:in) / AN SEWAN (Autor:in)
08.09.2020
Patent
Elektronische Ressource
Englisch