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    • 7. 发明公开
    • Material handling vehicle
    • 物料搬运车辆
    • EP1635001A3
    • 2008-07-30
    • EP05255531.5
    • 2005-09-08
    • J.C. BAMFORD EXCAVATORS LIMITED
    • Whatley, Mark LewisShepherd, John
    • E02F3/43E02F9/22E02F9/20
    • E02F9/2004E02F3/436E02F3/437E02F9/2228E02F9/2285
    • A material handling vehicle (10) comprising a structure having ground engageable propulsion means (12), a material handling means (14) mounted on the structure for movement relative thereto, the material handling means (14) comprising a first part (15) and a second part (18), the vehicle (10) further comprising a first actuator comprising a fluid operated ram (20) operable to move the first part (15) relative to the structure, and a second actuator comprising a fluid operated ram (21) operable to move the second part (18) relative to the first part (15), an operator control (24) operable to generate a fluid pressure control signal, a first control valve (30) operable to supply fluid pressure to the first actuator (20) and a second control valve (31) operable to supply fluid pressure to the second actuator (21) in response to the fluid pressure control signal, a modulating valve (39,40) operable to vary the fluid pressure control signal (34a,34b,35a,35b), and an electronic control unit (41) operable to control the modulating valve (39,40) in accordance with a desired operation of the material handling means (14).
    • 1。一种物料搬运车辆(10),包括具有可接地的推进装置(12)的结构,安装在该结构上用于相对于其移动的物料搬运装置(14),所述物料搬运装置(14)包括第一部分 第二部分(18),所述车辆(10)还包括第一致动器和第二致动器,所述第一致动器包括可操作以相对于所述结构移动所述第一部分(15)的流体操作撞杆(20),所述第二致动器包括流体操作撞杆 )可操作地相对于所述第一部分(15)移动所述第二部分(18),可操作以产生流体压力控制信号的操作者控制器(24),第一控制阀(30),所述第一控制阀可操作以将流体压力供应到所述第一致动器 (20)和第二控制阀(31),所述第二控制阀(31)响应于所述流体压力控制信号而可操作地向所述第二致动器(21)供应流体压力;调节阀(39,40),其可操作以改变所述流体压力控制信号 ,34b,35a,35b)和电子控制单元 (41),其可操作用于根据材料处理装置(14)的期望操作来控制调节阀(39,40)。