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2. 发明公开

EP1371855A1 Plough-turning device 有权
标题翻译： Pflugwendevorrichtung
公开(公告)号：EP1371855A1
公开(公告)日：2003-12-17
申请号：EP03076575.4
申请日：2003-05-23
申请人： Actuant Corporation
发明人： Leblanc, Jacobus Johannes Josephus Ronald , Beld, Peter Everhardus Johannes , Kooistra, Ronald
IPC分类号： F15B11/15 , F15B11/20 , A01B3/42
CPC分类号： A01B3/42 , F15B11/15 , F15B11/20
摘要： A valve assembly (1) for a hydraulic actuating device for a reversible plough, which actuating device comprises a width adjustment cylinder (10) for moving the plough in the width direction between a narrow position and a wide position, and a turning cylinder (11) for turning the plough about a turning axis.
The valve assembly is designed to turn the plough on command by firstly moving the plough into a narrow position, then turning the plough and then moving it back into a wide position.
The valve assembly comprises a pressure connection (P) and a return connection (T), which can respectively be connected to means for supplying pressurized hydraulic fluid and to a reservoir.
The valve assembly also comprises a first connection (A) and a second connection (B), which can be connected to the turning cylinder, and a third connection (A2), which can be connected to the width adjustment cylinder, in such a manner that when hydraulic fluid is supplied to the width adjustment cylinder via the third connection (A2) the plough moves in the direction of its wide position, and a fourth connection (A3), which can be connected to the width adjustment cylinder, in such a manner that when hydraulic fluid is supplied to the width adjustment cylinder via the fourth connection (A3) the plough moves in the direction of its narrow position.
摘要翻译：一种用于可逆犁的液压致动装置的阀组件（1），该组件（1）用于可逆犁，该致动装置包括宽度调节滚筒（10），用于在宽的方向上在狭窄的位置和较宽的位置之间移动犁，以及转动缸）用于围绕转动轴转动犁。阀组件设计成通过首先将犁移动到狭窄的位置，然后转动犁，然后将其移回到宽的位置来转动犁。阀组件包括压力连接（P）和返回连接（T），其可以分别连接到用于供应加压液压流体和储存器的装置。阀组件还包括可连接到转动缸的第一连接件（A）和第二连接件（B），以及可连接到宽度调节滚筒的第三连接件（A2）通过第三连接件（A2）将液压流体供给到宽度调节滚筒时，犁杆沿其宽度方向移动，第四连接件（A3）可连接到宽度调节滚筒以这样的方式，即当液压流体经由第四连接件（A3）供给到宽度调节滚筒时，犁刀沿着其狭窄的位置移动。

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