A motor-driven friction braking device for a rail vehicle is mainly composed of a torque motor, a speed reduction mechanism, an electromagnetic brake (1), a screw nut transmission mechanism and a brake friction pair (9). The torque motor, a screw (7), the speed reduction mechanism and the electromagnetic brake (1) are coaxially mounted; the torque motor is fixedly connected to the speed reduction mechanism, and the speed reduction mechanism is fixedly connected to the screw (7); the screw (7) is in non-self-locking threaded connection with a nut (8), and one end of the nut (8) is connected to the brake friction pair (9); and the electromagnetic brake (1) is mounted on the screw (7). This device uses a speed reduction mechanism to increase a torque. In addition, the screw (7) may be deadlocked by means of the electromagnetic brake (1), thereby implementing the function of parking brake. This device is driven by a motor, is convenient to control, and has a compact structure, which is beneficial to reducing the overall complexity of a brake system and achieving a lightweight design.


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    Title :

    MECHANICAL FORCE-AMPLIFYING TYPE MOTOR-DRIVEN FRICTION BRAKING DEVICE FOR RAIL VEHICLE


    Additional title:

    MECHANISCHE KRAFT VERSTÄRKENDE MOTORGETRIEBENE REIBUNGSBREMSVORRICHTUNG FÜR SCHIENENFAHRZEUG
    DISPOSITIF MOTORISÉ DE FREINAGE PAR FROTTEMENT À AMPLIFICATION DE FORCE MÉCANIQUE POUR VÉHICULE FERROVIAIRE


    Contributors:
    WU MENGLING (author) / CHEN MAOLIN (author) / TIAN CHUN (author) / PENG SHUN (author) / FENG FULEI (author) / ZHANG HANWEN (author) / WENG JINGJING (author)

    Publication date :

    2021-01-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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