The invention provides an electro-hydraulic four-wheel-drive transport robot hydraulic system and a working method thereof, in the system, a permanent magnet motor is connected with a closed axial plunger pump, and the closed axial plunger pump and a plurality of wheel-side motors form a closed loop through a motor valve group; the permanent magnet motor is connected with the gear pump, and the gear pump is connected with the multiple wheel edge steering mechanisms through the steering mechanism valve set and the steering plunger type cylinder set. The permanent magnet motor drives the closed axial plunger pump and the gear pump; the control element adjusts the motor valve group and the steering mechanism valve group based on the moving steering instruction; the closed axial plunger pump conveys oil in the oil tank to the corresponding wheel-side motors through the motor valve set so as to drive the wheel-side motors. The gear pump conveys oil in the oil tank to the corresponding steering plunger type cylinder set through the steering mechanism valve set so as to drive the wheel edge steering mechanism, and therefore the robot can move and steer according to the moving steering instruction. According to the system, the steering sensitivity is improved.

    本发明提出一种电液四驱运输机器人液压系统及其工作方法,该系统中永磁电机连接闭式轴向柱塞泵,闭式轴向柱塞泵经马达阀组与多个轮边马达组成闭式回路;永磁电机连接齿轮泵,齿轮泵经转向机构阀组、转向柱塞缸组与多个轮边转向机构连接;永磁电机驱动闭式轴向柱塞泵和齿轮泵;控制元件基于移动转向指令调节马达阀组和转向机构阀组;闭式轴向柱塞泵将油箱的油液经马达阀组送至对应的轮边马达以驱动轮边马达;齿轮泵将油箱的油液经转向机构阀组送至对应的转向柱塞缸组以驱动轮边转向机构,从而使机器人按照移动转向指令移动和转向。根据本发明的系统提高了转向灵敏度。


    Access

    Download


    Export, share and cite



    Title :

    Electro-hydraulic four-wheel-drive transportation robot hydraulic system and working method thereof


    Additional title:

    一种电液四驱运输机器人液压系统及其工作方法


    Contributors:
    WANG RUI (author) / SHI HAO (author) / FAN JIULIN (author) / FENG ZHIHUA (author) / SUN CHANGCHUN (author) / TANG ZHIHUI (author) / XIE FANGWEI (author) / TIAN ZUZHI (author) / CAO HENG (author) / WANG ZHENHUA (author)

    Publication date :

    2023-11-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B62D MOTOR VEHICLES , Motorfahrzeuge



    Hydraulic motor unit and hydraulic four-wheel-drive working vehicle

    YASUDA TOSHIFUMI | European Patent Office | 2015

    Free access


    HYDRAULIC FOUR-WHEEL-DRIVE WORK VEHICLE

    KAMADA MINORU / ICHINOSE NOBUHIKO | European Patent Office | 2018

    Free access

    Stability Control of Four-Wheel-Drive Electric Vehicle with Electro-Hydraulic Braking System

    Wu, Dongmei / Ding, Haitao / Guo, Konghui et al. | SAE Technical Papers | 2014


    Hydraulic wheel leg robot and hydraulic driving system thereof

    FU YILI / LI XU / FENG HAIBO et al. | European Patent Office | 2024

    Free access