公开(公告)号：US20130291530A1

公开(公告)日：2013-11-07

申请号：US13996818

申请日：2010-12-27

申请人： Sang-Ho Bang ,  Byung-Uk Roh

发明人： Sang-Ho Bang ,  Byung-Uk Roh

IPC分类号： E02F9/22

CPC分类号： E02F9/2292 ,  E02F9/2037 ,  E02F9/2242 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/40515 ,  F15B2211/41509 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/6658 ,  F15B2211/7142

摘要： Disclosed is a hydraulic control system for matching the drive speed of a boom up and a swing device according to the operation environment when compound-driving for manipulating boom and swing for excavation compensating error operation. The hydraulic control system of the present invention comprises: an operation mode selection switch for enabling the selection of an operation mode according to the operation environment; an electronic proportional pressure control valve for outputting a control signal pressure that is proportional to the manipulation of the operation mode selection switch when manipulating a boom operation lever for driving the boom up; a variable flow control valve that is placed on a flow channel between a first hydraulic pump and a spool for the swing device, and has an open area thereof that is variably matched proportional to the control signal pressure from the electronic proportional pressure control valve; and a controller having various types of operation modes previously set and stored thereon so as to control the flow being supplied to the spool for the swing device and a spool for the boom merge, according to the operation mode selected when manipulating the operation mode selection switch.

摘要翻译： 公开了一种液压控制系统，用于在用于操纵吊臂和摆动的复合驱动时根据操作环境匹配吊杆上升和摆动装置的驱动速度以进行挖掘补偿误差操作。 本发明的液压控制系统包括：操作模式选择开关，用于根据操作环境选择操作模式; 电子比例压力控制阀，用于当操纵用于驱动吊杆上升的动臂操作杆时，输出与操作模式选择开关的操作成比例的控制信号压力; 可变流量控制阀，其设置在第一液压泵和用于摆动装置的阀芯之间的流路上，并且其开口面积与来自电子比例压力控制阀的控制信号压力成比例地变化匹配; 以及控制器，其具有预先设定并存储在其中的各种类型的操作模式，以根据在操作操作模式选择开关时所选择的操作模式来控制供应到摆动装置的卷轴和用于吊杆合并的卷轴的流动 。