The invention relates to the technical field of electric drive axles, and discloses a commercial vehicle electric drive axle with an idle wheel structure. A drive motor is connected with an input shaft, and the input shaft is provided with a first-stage driving gear; an idle gear and a secondary driving gear are arranged on the first intermediate shaft; the output end of the power takeoff is connected with a power takeoff driven wheel through an output shaft; a left half shaft, a right half shaft and a four-stage driven gear are arranged on the differential mechanism assembly; the hollow center shaft is arranged on the right half shaft in a sleeving mode, a third-level driving gear is arranged on the hollow center shaft, the second-gear gear and the first-gear gear are arranged on the hollow center shaft in an empty sleeving mode, and a gear shifting gear hub and a gear shifting gear sleeve are further arranged on the hollow center shaft. And a fourth-stage driving gear and a third-stage driven gear are arranged on the second intermediate shaft. The idle gear is adopted, the four-stage speed reduction structure is adopted under the first-gear working condition, the three-stage speed reduction structure is adopted under the second-gear working condition, a power takeoff gear and part of bearings can be omitted, the transmission chain structure is optimized, and the whole transmission chain is light.

    本发明涉及电驱桥技术领域,公开了一种带惰轮结构的商用车电驱桥,所述驱动电机与输入轴连接,所述输入轴上设有一级主动齿轮;所述第一中间轴上设有惰轮和二级主动齿轮;所述取力器的输出端通过输出轴连接有取力器从动轮;所述差速器总成上设有左半轴、右半轴和四级从动齿轮;所述空心中心轴套设在右半轴上,其上设有三级主动齿轮,所述二档齿轮和一档齿轮空套在空心中心轴上,所述空心中心轴上还设有换挡齿毂和换挡齿套;所述第二中间轴上设有四级主动齿轮和三级从动齿轮。本发明采用惰轮,一档工况下,为4级减速结构,二档工况下,为3级减速结构,可以减少一个取力器齿轮以及部分轴承,优化了传动链结构,使整个传动链轻量化。


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    Title :

    Commercial vehicle electric drive axle with idle wheel structure


    Additional title:

    一种带惰轮结构的商用车电驱桥


    Contributors:
    FANG ZEMING (author) / LI WEI (author) / YE DING (author)

    Publication date :

    2025-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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