The invention relates to a central motor speed reduction drive axle assembly which comprises a drive motor, a first-stage speed reducer, a second-stage speed reducer and a differential mechanism. The one-stage speed reducer and the two-stage speed reducer are adopted to form an idle-wheel-free two-stage speed reduction structure, and compared with an existing parallel-shaft-structure central motor speed reduction drive axle adopting three or more stages of speed reduction devices, the number of gear pairs is reduced, so that the transmission efficiency of the axle is obviously improved; and meanwhile, the compactness of the overall structure of the axle is obviously improved, the transmission noise and the overall weight are obviously reduced, and the assembly manufacturability and the maintenance convenience of the axle are effectively improved.

    本发明涉及一种中央电机减速驱动桥总成,包括驱动电机、一级减速器、二级减速器和差速器;本发明采用一级减速器和二级减速器,构成无惰轮二级减速结构,与现有平行轴结构中央电机减速驱动桥采用三级及以上减速装置相比,减少了齿轮副数量,使得车桥的传动效率高得到了明显提升,同时车桥整体结构的紧凑性得到明显改善,传动噪音以及整体重量得到了明显降低,同时有效改善了车桥的装配工艺性以及维修便捷性。


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    Title :

    Central motor speed reduction drive axle assembly


    Additional title:

    一种中央电机减速驱动桥总成


    Contributors:
    DING WEIQI (author) / ZHANG LONG (author) / GUO HONGRUI (author) / LIU JUANJUAN (author) / WANG BO (author)

    Publication date :

    2024-07-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / 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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