A bogie of a low-floor tramcar comprises a framework, a swing bolster, a traction device connected with a car body, axle boxes, wheel sets, drive systems, brake systems, primary suspensions, secondary suspensions and stone sweeping and sand scattering devices, wherein each drive system comprises a motor, a gear case and a hollow axle sleeve, a gear set is arranged in the gear case, an output shaft of the motor is connected with an input shaft of the gear case through a coupler, a wheel axle is sleeved with the axle sleeve, a gap is formed between the axle sleeve and the wheel axle, one end of the axle sleeve is connected with one coupling, the other end of the axle sleeve extends into the gear case and is connected with an output gear of the gear case, the coupling adopts a hollow structure, and a fixing sleeve is arranged on the inner wall of the coupling and is in clearance fit with the wheel axle. The gear cases are driven by the output shafts of the motors and drive the hollow axle sleeves, and the hollow axle sleeves are nested on the wheel axles of the wheel sets and transfer power to the wheel axles. By means of the drive system, the motors can drive the wheel sets, the unsprung weight of the bogie can be reduced under the action of the axle sleeves, and accordingly, the mechanical property of the bogie is improved.


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    Title :

    Bogie of low-floor tramcar


    Contributors:
    LI TAO (author) / JIANG KUAN (author) / LI FU (author) / AN QI (author) / CHEN XINCAI (author) / TU LIBO (author) / HUANG HE (author)

    Publication date :

    2015-09-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / B61C Lokomotiven , LOCOMOTIVES



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