The invention discloses a drive axle with a main reducer having a hydraulic retardance function; the drive axle comprises an axle housing assembly (6), a main reducer assembly (7), a brake assembly (8) and a wheel hub brake drum assembly (9); the main reducer assembly (7) is provided with a hydraulic assembly so as to generate the retardance function; the hydraulic assembly comprises a gear pump (2); an oil inlet of the gear pump (2) is connected with an oil tank (1); an oil outlet of the gear pump (2) is connected with a valve block; the valve block comprises a pilot overflow valve (3) and a throttle valve (4), and arranged on the oil tank (1); an oil outlet of the valve block is connected with a heat exchanger (5); the heat exchanger (5) is arranged on the oil tank (1) through a flange; the hydraulic assembly uses a pair of mutually engaged cylinder gear wheels, arranged on the main reducer of the drive axle, to form a retarder, so the drive axle can have the retardance function; the vehicle having the drive axle can stably slow down in driving without using a brake system, thus obviously improving the life of a brake disc and tyres, and improving vehicle safety.


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    Title :

    Drive axle with main reducer having hydraulic retardance function


    Contributors:
    SUI JINGYU (author) / CHI SHUDI (author) / MA JINGSHUAI (author)

    Publication date :

    2016-01-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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