公开(公告)号：EP2927094B1

公开(公告)日：2019-10-02

申请号：EP13858490.9

申请日：2013-11-15

申请人： Xuzhou Heavy Machinery Co., Ltd.

发明人： SHI, Xianxin ,  DING, Honggang ,  YE, Haixiang ,  FANG, Xin ,  ZHANG, Fuyi

IPC分类号： B62D5/06 ,  B62D5/08 ,  B62D7/15 ,  B62D5/065 ,  B62D5/09 ,  B62D5/20 ,  F15B13/08

公开(公告)号：EP2927094A1

公开(公告)日：2015-10-07

申请号：EP13858490.9

申请日：2013-11-15

申请人： Xuzhou Heavy Machinery Co., Ltd.

发明人： SHI, Xianxin ,  DING, Honggang ,  YE, Haixiang ,  FANG, Xin ,  ZHANG, Fuyi

IPC分类号： B62D5/06 ,  B62D5/08

CPC分类号： B62D5/08 ,  B62D5/065 ,  B62D5/091 ,  B62D5/20 ,  B62D7/1509 ,  F15B13/085

摘要： Disclosed is an electric-control multimode steering valve. The steering valve comprises: a flow distributing and collecting valve (Y), a first electromagnetic exchange valve (Y1), and a second electromagnetic exchange valve (Y2). A valve body comprises four groups of paired valve oil ports. First oil ports of the first electromagnetic exchange valve (Y1) and the second electromagnetic exchange valve (Y2) are respectively in communication with a first group of valve oil ports (PR, PL) of the valve body. Second oil ports of the first electromagnetic exchange valve (Y1) and the second electromagnetic exchange valve (Y2) are respectively in communication with a second group of valve oil ports (A1, B1) of the valve body. A third oil port of the first electromagnetic exchange valve (Y1) is in communication with a flow collecting port of the flow distributing and collecting valve (Y). A first flow distributing port of the flow distributing and collecting valve (Y) and a third oil port of the second electromagnetic exchange valve (Y2) are respectively in communication with a third group of valve oil ports (A2, B2) of the valve body. A second flow distributing port of the flow distributing and collecting valve (Y) and the third oil port of the second exchange valve (Y2) are respectively in communication with a fourth group of valve oil ports (A3, B3) of the valve body. Further disclosed are a steering hydraulic control system and a wheel type crane. The steering valve can implement multimode steering of engineering vehicles, and the working is reliable and the cost is low.

摘要翻译： 公开了一种电控多模转向阀。 转向阀包括流量分配和收集阀（Y），第一电磁换向阀（Y1）和第二电磁换向阀（Y2）。 阀体包括四组成对的阀油口。 第一电磁换向阀（Y1）和第二电磁换向阀（Y2）的第一油口分别与阀体的第一组阀油口（PR，PL）连通。 第一电磁换向阀（Y1）和第二电磁换向阀（Y2）的第二油口分别与阀体的第二组阀油口（A1，B1）连通。 第一电磁换向阀（Y1）的第三油口与流量分配和收集阀（Y）的集流端口连通。 分流集水阀（Y）的第一分流口和第二电磁阀（Y2）的第三油口分别与阀体的第三组阀油口（A2，B2）连通 。 分流回收阀（Y）的第二分配口和第二交换阀（Y2）的第三油口分别与阀体的第四组阀油口（A3，B3）连通。 另外公开了一种转向液压控制系统和轮式起重机。 转向阀可以实现工程车辆的多模转向，工作可靠，成本低。