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    • 38. 发明专利
    • Working vehicle equipped with travelling vibration suppressing device
    • 配备有行驶式振动抑制装置的工作车辆
    • JP2012193509A
    • 2012-10-11
    • JP2011056636
    • 2011-03-15
    • Hitachi Constr Mach Co LtdKcm:Kk日立建機株式会社株式会社Kcm
    • AOKI ISAMUSHIMAZU ATSUSHITANAKA TETSUJIKIKUCHI KEIGO
    • E02F9/22B60G17/015B60G17/016F16F9/50F16F15/02
    • E02F9/2207B60G17/016B60G17/04B60G2300/09B60G2400/61E02F9/2217
    • PROBLEM TO BE SOLVED: To provide a working vehicle equipped with a travelling vibration suppressing device for hardly giving senses of incongruity and anxiety to an operator by increasing the operating stability of a front working machine during excavating work and loading work.SOLUTION: A main controller 35 controls a control valve 32 to be opened/closed to permit/prohibit the distribution of operating oil between a lift cylinder 16 and a hydraulic accumulator 31. The main controller 35 changes the control valve 32 into a closed state when determining that the height position of a bucket 13 is between a lower limit position H0 in a movable range of the bucket 13 and a first height position H1 set thereabove and when determining that it is between an upper limit position H3 in the movable range and a second height position H2 set therebelow and above the first height position H1. The main controller 35 also changes the control valve 32 into an opened state when determining that the height position of the bucket 13 is higher than the first height position H1 and lower than the second height position H2.
    • 要解决的问题:提供一种配备有行驶振动抑制装置的作业车辆,通过在挖掘作业和装载作业期间增加前作业机械的操作稳定性,几乎不给操作者带来不协调和焦虑的感觉。 解决方案:主控制器35控制控制阀32打开/关闭以允许/禁止在提升缸16和液压蓄能器31之间分配工作油。主控制器35将控制阀32改变为 当确定铲斗13的高度位置在铲斗13的可移动范围中的下限位置H0和设在其上的第一高度位置H1之间并且当确定其处于可移动的铲斗13的上限位置H3之间时, 并且第二高度位置H2设置在其下方和第一高度位置H1之上。 当确定铲斗13的高度位置高于第一高度位置H1并低于第二高度位置H2时,主控制器35还将控制阀32改变为打开状态。 版权所有(C)2013,JPO&INPIT