The present invention relates to a hydraulic steering device for an agricultural work vehicle, comprising: a steering pump for supplying a working fluid; an automatic steering unit connected to the steering pump and configured to change a traveling direction of the agricultural work vehicle by using the working fluid supplied from the steering pump as automatic steering is performed by a control unit; a manual steering unit connected to the steering pump and configured to change a traveling direction of the agricultural work vehicle with a working fluid supplied from the steering pump as manual steering is performed by operating a steering wheel; an automatic cut-off unit connected to the automatic steering unit for selectively preventing the working fluid for the automatic steering from being supplied to a steering cylinder of the agricultural work vehicle according to whether the manual steering is performed; and an automatic holding unit that controls the automatic shut-off unit such that the working fluid used for the automatic steering passes through the automatic shut-off unit regardless of whether or not the manual steering is performed.
本发明涉及农业用作业车辆的液压式转向装置,包括:转向泵,供应工作流体;自动转向单元,与所述转向泵连接,随着通过控制部执行自动转向,利用从所述转向泵供应的工作流体改变农业用作业车辆的行驶方向;手动转向单元,与所述转向泵连接,随着通过操作转向盘执行手动转向,利用从所述转向泵供应的工作流体来改变所述农业用作业车辆的行驶方向;自动切断单元,与所述自动转向单元连接,用于根据是否执行所述手动转向,选择性地阻止用于所述自动转向的工作流体供应到所述农业用作业车辆的转向缸;以及自动保持单元,控制所述自动切断单元,使得所述自动切断单元与是否执行所述手动转向无关地使用于所述自动转向的工作流体通过。
Hydraulic steering device for agricultural work vehicle
农业用作业车辆的液压式转向装置
14.05.2024
Patent
Elektronische Ressource
Chinesisch
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