The invention discloses a passive braking system of a railway vehicle. The passive braking system comprises a two-way metering pump, a hydraulic bridge, a filter, an energy accumulator prefill valve assembly, an oil tank, a braking energy accumulator, a pressure gauge, a parking brake valve, a manual hydraulic pump, an overspeed signaling device, a braking hydraulic cylinder and a stop valve. Thepassive braking system has the following technical effects that 1, a hydraulic system has an automatic pressure maintaining function, and enough and stable braking force can be provided in the brakingprocess; 2, a hydraulic loop has an automatic braking mode and a manual braking mode at the same time, when the vehicle is overspeed, a speed limiter of the overspeed signaling device can automatically open a braking reversing valve for braking, and a worker can manually brake at any time, so that the running safety of the vehicle is improved; 3, the braking speed can be adjusted in a stepless mode, and adverse effects on the structure when the braking acceleration is too large can be avoided; and 4, when the pressure of the energy accumulator is stable, a hydraulic pump is in a low-pressureunloading state, the service life of the hydraulic pump can be prolonged, and energy consumption can be reduced.

    本发明公开了一种轨道车辆无源制动系统,包括双向定量泵、液压桥、过滤器、蓄能器充液阀总成、油箱、制动蓄能器、压力表、驻车制动阀、手动液压泵、超速发讯装置、制动液压缸、截止阀。本发明有如下技术效果:1、液压系统有自主保压功能,在制动过程中能提供足够且稳定的制动力;2、液压回路同时具有自动和手动控制两种制动方式,当车辆超速时,超速发讯装置的限速器会自动打开制动换向阀进行制动,工作人员可以任意时刻手动制动,提升车辆运行的安全性;3、制动速度可无级调节,能避免制动加速度太大时对结构产生的不利影响;4、当蓄能器压力稳定时,液压泵处于低压卸荷状态,能提高液压泵的使用寿命和降低能耗。


    Access

    Download


    Export, share and cite



    Title :

    Passive braking system of railway vehicle


    Additional title:

    一种轨道车辆无源制动系统


    Contributors:
    XIAO LIANPING (author) / HU JUNKE (author) / PENG YUFENG (author)

    Publication date :

    2021-03-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES



    RAILWAY VEHICLE BRAKING SYSTEM AND METHOD OF BRAKING RAILWAY VEHICLE

    SHVINN ZHAN-PASKAL / SHTYUTTSLE TORSTEN / FERSTER TILL et al. | European Patent Office | 2016

    Free access

    RAILWAY VEHICLE BRAKING SYSTEM

    SHVINN ZHAN-PASKAL / SHTYUTTSLE TORSTEN / FERSTER TILL et al. | European Patent Office | 2016

    Free access

    RAILWAY BRAKING SYSTEM FOR RAILWAY VEHICLE

    GONKALVES KLODINO / MAJAR LUI / LORAN FABRIS et al. | European Patent Office | 2021

    Free access

    Method for braking railway vehicle, braking system, railway vehicle and train

    CRAMER MARK / SZEKELY FRANK | European Patent Office | 2023

    Free access

    RAILWAY VEHICLE BRAKING SYSTEM

    ZUBKOV VENIAMIN FEDOROVICH / KHOKHULIN ALEKSEJ MIKHAJLOVICH / TSIBIZOV MAKSIM NIKOLAEVICH et al. | European Patent Office | 2021

    Free access