The present invention relates to a hydraulic steering mechanism for an agricultural vehicle, comprising: a steering pump for supplying working fluid; a manual steering unit which is connected to the steering pump and, as manual steering is carried out by manipulating a steering wheel, changes the driving direction of an agricultural vehicle by means of the working fluid supplied from the steering pump; an automatic steering unit which, as automatic steering is carried out by a control unit, changes the driving direction of the agricultural vehicle by means of the working fluid supplied from the steering pump; a manual preferential switching unit connected to each of the steering pump and the automatic steering unit so that the working fluid supplied from the steering pump is selectively supplied to the automatic steering unit, depending on whether the manual steering is carried out or not; an external discharge line for discharging, to an external device, the working fluid supplied from the steering pump; and a steering preferential unit connected to each of the steering pump and the external discharge line so that the working fluid supplied from the steering pump is selectively discharged to the external discharge line.

    La présente invention concerne un mécanisme de direction hydraulique pour un véhicule agricole, comprenant : une pompe de direction pour fournir un fluide de travail ; une unité de direction manuelle qui est reliée à la pompe de direction et, lorsqu'une direction manuelle est réalisée par manipulation d'un volant de direction, qui modifie la direction de conduite d'un véhicule agricole au moyen du fluide de travail fourni à partir de la pompe de direction ; une unité de direction automatique qui, lorsqu'une direction automatique est effectuée par une unité de commande, modifie la direction de conduite du véhicule agricole au moyen du fluide de travail fourni à partir de la pompe de direction ; une unité de commutation préférentielle manuelle reliée à chacune de la pompe de direction et de l'unité de direction automatique de telle sorte que le fluide de travail fourni à partir de la pompe de direction est sélectivement fourni à l'unité de direction automatique, selon le fait que la direction manuelle est réalisée ou non ; une ligne de décharge externe pour décharger, vers un dispositif externe, le fluide de travail fourni à partir de la pompe de direction ; et une unité préférentielle de direction reliée à chacune de la pompe de direction et de la ligne de décharge externe de telle sorte que le fluide de travail fourni à partir de la pompe de direction est sélectivement déchargé vers la ligne de décharge externe.

    본 발명은 작동유체를 공급하는 조향펌프; 상기 조향펌프에 연결되고, 조향핸들의 조작에 의한 수동조향이 이루어짐에 따라 상기 조향펌프로부터 공급된 작동유체를 이용하여 농업용 작업차량의 주행방향을 변경시키는 수동조향유닛; 제어부에 의한 자동조향이 이루어짐에 따라 상기 조향펌프로부터 공급된 작동유체를 이용하여 상기 농업용 작업차량의 주행방향을 변경시키는 자동조향유닛; 상기 수동조향이 이루어지는지 여부에 따라 상기 조향펌프로부터 공급된 작동유체가 상기 자동조향유닛으로 선택적으로 공급되도록 상기 조향펌프와 상기 자동조향유닛 각각에 연결된 수동우선전환유닛; 상기 조향펌프로부터 공급된 작동유체를 외부장치로 배출하기 위한 외부배출라인; 및 상기 조향펌프로부터 공급된 작동유체가 상기 외부배출라인으로 선택적으로 배출되도록 상기 조향펌프와 상기 외부배출라인 각각에 연결된 조향우선유닛을 포함하는 농업용 작업차량의 유압식 조향장치에 관한 것이다.


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    Title :

    HYDRAULIC STEERING MECHANISM FOR AGRICULTURAL VEHICLE


    Additional title:

    MÉCANISME DE DIRECTION HYDRAULIQUE POUR VÉHICULE AGRICOLE
    농업용 작업차량의 유압식 조향장치


    Contributors:

    Publication date :

    2019-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    A01B SOIL WORKING IN AGRICULTURE OR FORESTRY , Bodenbearbeitung in Land- oder Forstwirtschaft / B62D MOTOR VEHICLES , Motorfahrzeuge



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