The invention discloses a two-stage speed reducer with a differential mechanism assembly for a pure electric vehicle. The two-stage speed reducer with the differential mechanism assembly comprises a shell, a speed reducer assembly and a differential mechanism assembly, the speed reducer assembly is installed on one side of the shell and used for being connected to an output shaft of a driving motor in the using state, the differential mechanism assembly is installed on the other side of the shell and used for being connected to a hub of an electric vehicle axle through a half shaft in the using state, one end of the differential mechanism assembly is rotationally connected to the shell, the other end of the differential mechanism assembly is detachably installed on the shell through a bearing cover and can rotate relative to the shell, the rotating speed and torque of the driving motor drive the differential mechanism assembly to rotate after being decelerated and increased by the speed reducer assembly, and the differential mechanism assembly is used for driving hubs at the two ends of the same axle of the pure electric vehicle to rotate. According to the two-stage speed reducer with the differential mechanism assembly, the two-stage speed reduction is adopted, the transmission efficiency is high, the speed reduction structure is simple, the structure of the shell is also simple, the total weight is small, a hole with a larger diameter does not need to be formed in the shell or the part, where a speed reduction gear is installed, of the shell is not needed to be manufactured into two parts, and the shell is high in rigidity.

    本发明公开了一种纯电动车用二级减速器带差速器总成,包括壳体、减速器总成和差速器总成;减速器总成安装在壳体的一侧用于在使用状态下与驱动电机的输出轴连接;差速器总成安装在壳体的另一侧,用于在使用状态下采用半轴连接电动车车桥的轮毂,其中:差速器总成的一端与壳体转动连接,另一端采用轴承盖可拆卸的安装在壳体上,并且可相对壳体转动,驱动电机转速及扭矩经减速器总成减速增扭后驱动差速器总成转动,差速器总成用于驱动纯电动车同一车桥两端的轮毂转动。本发明采用二级减速,传动效率高,减速结构简单,壳体的结构亦简单,总重量小,本发明不需要在壳体上开直径较大的孔洞或者将壳体安装减速齿轮的部位制成两部分,本发明中壳体的刚度高。


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    Titel :

    Two-stage speed reducer with differential mechanism assembly for pure electric vehicle


    Weitere Titelangaben:

    纯电动车用二级减速器带差速器总成


    Beteiligte:
    GUI ZHIGUO (Autor:in) / SHAO HUA (Autor:in) / BIAN YONGJIE (Autor:in)

    Erscheinungsdatum :

    2021-08-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / 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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