Rotation control device, rotation control method, and construction machine

旋转控制装置、旋转控制方法及建设机械

Abstract

在电动旋转单斗挖掘机的控制装置(50)中,根据在燃料标度盘(13)的设定状态、在模式切换开关(14)的切换状态,生成旋转速度系数,由此改变目标速度指令值的值,改变旋转体(4)的旋转速度。因此,如果通过燃料标度盘(13)或模式切换开关(14)的操作使发动机转速成为低速旋转时,能够与此对应地使旋转体(4)的旋转速度下降,发动机转速成为高速旋转时,能够使旋转速度上升。因此,能够得到和通常的以液压式来使旋转体(4)旋转的情况大致同样的乘坐感觉,并即使从现有的液压单斗挖掘机换乘到电动旋转单斗挖掘机,也不会有感觉到任何不协调感的担心。
A control device (50) for an electrically rotated shovel, in which a rotation speed factor is created according the condition set by a fuel dial (13) or the condition selected by a mode change switch(14), and the magnitude of a target speed command value is varied to vary the rotation speed of a rotating body (4). As a result, when the speed of an engine is reduced by operation of the fuel dial (13) or the mode change switch (14), the rotation speed of the rotating body (4) can be reduced accordingly, and when the engine speed is increased, the rotation speed can be increased. This can provide drive comfort almost similar to that obtained when the rotating body (4) is rotated by an ordinary hydraulic system. As a consequence, even if a user changes a shovel from a conventional hydraulic shovel to this electrically rotated shovel, the user does not have a strange feeling.

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Patent Citations (3)

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