The invention relates to the field of parking systems, in particular to a parking braking emergency release control system for hydraulic drive agricultural machinery. The parking brake emergency release control system for the hydraulic drive agricultural machinery comprises a brake piston, a reversing valve, a steering oil cylinder, a steering gear and a hydraulic oil tank, and an oil port of a brake release cavity of the brake piston is connected and communicated with an oil outlet of the reversing valve through a pipeline; two oil outlets of the steering oil cylinder are correspondingly connected and communicated with two oil outlets of the steering gear through oil outlet pipelines respectively, and an oil inlet and an oil return opening of the steering gear are connected and communicated with the hydraulic oil tank through pipelines respectively. A hydraulic oil conveying pipeline used for conveying oil into the hydraulic brake releasing cavity is connected between an oil port of the brake releasing cavity of the brake piston and any oil outlet pipeline. The device has the advantages of being reasonable in design, simple in principle and convenient to operate, ingeniously utilizing a steering system of the vehicle, and not needing to add a new pressure oil source; the design cost is low and the reliability is high.

    本发明涉及驻车系统领域,特别涉及一种用于液压驱动农业机械的驻车制动应急解除控制系统。本发明的用于液压驱动农业机械的驻车制动应急解除控制系统包括制动活塞、换向阀、转向油缸、转向器和液压油箱,所述制动活塞的制动解除腔体的油口通过管线与所述换向阀的出油口连接并连通,所述转向油缸的两个出油口分别通过出油管线与所述转向器的两个出油口对应连接并连通,所述转向器的进油口和回油口分别通过管线与所述液压油箱连接并连通,所述制动活塞的制动解除腔体的油口与任意一条所述出油管线之间连接有用于向所述液压制动解除腔体内输送油液的液压输油管线。优点:设计合理,原理简单,操作方便,巧妙利用车辆自带转向系统,不需增设新的压力油源;设计成本低,可靠性高。


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    Title :

    Parking brake emergency release control system for hydraulically driven agricultural machinery


    Additional title:

    用于液压驱动农业机械的驻车制动应急解除控制系统


    Contributors:
    LIU BIN (author) / WU XIAOWEI (author) / ZHANG SHUGANG (author) / HU DELI (author) / YANG QIFAN (author) / XU SHAOJIE (author) / WEI BIN (author) / TANG HAIYAN (author) / WANG WENMING (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B62D MOTOR VEHICLES , Motorfahrzeuge




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