The invention relates to the technical field of engineering machinery braking, in particular to an engineering machinery multifunctional braking system which comprises a parking and auxiliary braking unit which comprises a two-position three-way electromagnetic valve, a parking braking air chamber, a gearbox brake, a pressure switch and a parking braking switch. The front end of the electromagnetic valve is connected with the air processing unit, the rear end of the electromagnetic valve is sequentially connected with the parking braking air chamber and the gearbox brake, the input end of the pressure switch is connected with the power source, the output end of the pressure switch is connected with the input end of the parking braking switch, the pressure detection end is connected with the air processing unit, and the output end of the electromagnetic valve coil is grounded. When the electromagnetic valve is electrified, front and rear air paths are connected; and when the electromagnetic valve is powered off, the front air path is closed, and the rear air path is communicated with atmosphere. The parking braking system is simple in structure, parking braking can be achieved under active operation of operators, parking braking can be achieved under the condition that the operators do not need to operate, and the braking safety of the braking system is improved.

    本发明涉及工程机械制动技术领域,具体是一种工程机械多功能制动系统,包括停车与辅助制动单元,其包括两位三通电磁阀、驻车制动气室、变速箱制动器、压力开关和驻车制动开关。电磁阀前端连接空气处理单元、后端依次连接驻车制动气室和变速箱制动器,压力开关输入端连接电源、输出端连接驻车制动开关输入端、压力检测端连接空气处理单元,驻车制动开关输出端连接电磁阀线圈输入端,电磁阀线圈输出端接地。电磁阀通电,其前后方的气路接通;电磁阀断电,其前方气路被封闭、后方气路连通大气。本发明结构简单,既能够在操作人员的主动操作下实现驻车制动,又能在不需要操作人员操作的情况下实现驻车制动,提高了制动系统的制动安全性。


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    Titel :

    Multifunctional braking system of engineering machinery


    Weitere Titelangaben:

    一种工程机械多功能制动系统


    Beteiligte:
    CHEN FANMIN (Autor:in) / ZHU PENGHUI (Autor:in) / QI GAOPIN (Autor:in) / SUN CHANGLIANG (Autor:in) / JIN XIANGQIANG (Autor:in) / WU QIONG (Autor:in) / ZHENG XIAOCHEN (Autor:in) / ZHANG XU (Autor:in) / WEI JIUCHANG (Autor:in) / WANG ZHENGHANG (Autor:in)

    Erscheinungsdatum :

    2023-11-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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