The invention discloses a hydraulic service braking system of a three-axis mine dump truck, which comprises a brake valve, the brake valve is used for controlling brakes on three axes to work, the brake valve is connected with a prefill valve, and the prefill valve is used for supplying pressure oil output by a hydraulic pump to the brake valve and a relay valve. Pressure oil output by the hydraulic pump is supplied to the brake valve, the first relay valve, the second relay valve and the third relay valve through the prefill valve, when the brake action needs to be executed, a brake pedal on the valve body is stepped down, and under the action of a tappet rod, the brake action is completed. The output pressure of the first hydraulic assembly, the output pressure of the second hydraulic assembly and the output pressure of the third hydraulic assembly on the valve body respectively control a first relay valve, a second relay valve and a third relay valve in a pilot mode to proportionally output brake pressure to a front axle service brake, a middle axle service brake and a rear axle service brake, braking is achieved, and rapid braking and oil return are achieved. Abrasion of tires is reduced, and the problems of braking delay and untimely oil return caused by an overlong pipeline are solved.

    本发明公开了一种三轴线矿山自卸车液压行车制动系统,包括制动阀,制动阀用于控制三轴上的制动器工作,制动阀与充液阀连接,充液阀用于将液压泵输出的压力油供给制动阀和继动阀。本发明通过充液阀将液压泵输出的压力油供给制动阀和第一继动阀、第二继动阀与第三继动阀,当需要执行刹车动作时,踩下阀体上的制动踏板,在挺杆的作用下,使得阀体上的第一液压组件、第二液压组件和第三液压组件输出压力分别先导控制第一继动阀、第二继动阀与第三继动阀进行比例输出制动压力到前桥行车制动器、中桥行车制动器和后桥行车制动器,实现刹车,实现快速制动和回油,减少轮胎的磨损,解决管路过长造成的刹车延迟和回油不及时的问题。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Hydraulic service braking system of three-axis mine dump truck


    Weitere Titelangaben:

    一种三轴线矿山自卸车液压行车制动系统


    Beteiligte:
    LI WENDING (Autor:in) / HU HONGXUN (Autor:in) / WANG YU (Autor:in) / ZHANG LONGGUANG (Autor:in) / XU CHUNLEI (Autor:in) / HUANG ZETAO (Autor:in) / ZHA GUANYU (Autor:in)

    Erscheinungsdatum :

    2023-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



    Hydraulic emergency braking system of mining dump truck

    LI ZONG / WANG JIAWEI / XIE HEPING et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Mine transportation dump truck

    WU HAIFANG / LI XINGLONG / LEI YINZHONG et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    MINE HYBRID DUMP-TRUCK

    NAKAMURA AKIHIRO / SUGAWARA TATSUYA / ODA HISAKAZU et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    MINE HYBRID DUMP-TRUCK

    NAKAMURA AKIHIRO / SUGAWARA TATSUYA / ODA HISAKAZU et al. | Europäisches Patentamt | 2018

    Freier Zugriff

    REGENERATIVE BRAKING DEVICE AND DUMP TRUCK

    TAKADA TOMONORI / IKARI TAKANOBU / IKIMI TAKASHI et al. | Europäisches Patentamt | 2022

    Freier Zugriff