The invention discloses a tractor electro-hydraulic control steering system and a steering control method thereof. The tractor electro-hydraulic control steering system comprises a steering oil cylinder, a shuttle valve, an oil supply unit, a steering gear unit, a manual steering unit and an electric control steering unit. An outlet of the oil supply unit is divided into two branches, and the two branches are connected with an oil way of the manual steering unit and an oil way of the electric control steering unit respectively. The electric control steering unit comprises a controller and an adjustable passing valve, the controller is in signal connection with the adjustable passing valve, and the oil inlet end of the adjustable passing valve is connected with an oil outlet of the oil supply unit; the manual steering unit comprises a pressure reducing valve, and the oil inlet end of the pressure reducing valve is connected with an oil outlet of the oil supply unit. A port E of the shuttle valve is connected with the oil outlet end of the adjustable passing valve, a port F of the shuttle valve is connected with the oil outlet end of the pressure reducing valve, and a port G of the shuttle valve is connected with an oil inlet of the steering gear unit. The device has the advantages of reasonable structure, good controllability, high response speed and the like.

    本发明公开一种拖拉机电液控制转向系统及其转向控制方法,包括转向油缸、梭阀、供油单元、转向器单元、人工转向单元和电控转向单元;所述供油单元的出口分为两个支路,两个支路分别与人工转向单元、电控转向单元的油路相连;所述电控转向单元包括控制器和可调通过阀,所述控制器与可调通过阀信号连接,所述可调通过阀的进油端与供油单元的出油口相连;所述人工转向单元包括减压阀,所述减压阀的进油端与供油单元的出油口相连;所述梭阀的E口与可调通过阀的出油端相连,所述梭阀的F口与减压阀的出油端相连,所述梭阀的G口与转向器单元的进油口相连。本装置具有结构合理、控制性好和响应速度快等优点。


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    Title :

    Tractor electro-hydraulic control steering system and steering control method thereof


    Additional title:

    一种拖拉机电液控制转向系统及其转向控制方法


    Contributors:
    YAN XIANGHAI (author) / WEI HAIJIANG (author) / XU LIYOU (author) / ZHANG JINGYUN (author) / WU YIWEI (author) / ZHAO SIXIA (author) / ZHANG JUNJIANG (author) / ZHANG SHUAI (author) / ZHENG JINGYANG (author)

    Publication date :

    2023-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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