The invention provides a coaxial drive axle which is simple and reliable in structure, short in axial size and particularly suitable for occasions with high requirements for the axial size. The coaxial drive axle comprises a motor, a planetary gear speed reducer, a differential mechanism, a first sun gear fixed on a shell and a second sun gear rotating relative to the shell, wherein the first sungear and the second sun gear are coaxial. Each group of planet wheels comprises two planet wheels which are respectively meshed with the two sun gears and are coaxially and fixedly connected; in the axis direction of the motor, a rotor is located at one sides of the planet wheels; a planet carrier is provided with an extension ring extending towards one side of the rotor in the axis direction of the motor, and the rotor is fixed to the extension ring; and a differential mechanism shell is located in the rotor and fixed to the second sun gear, two half shafts extend into the differential mechanism shell to be fixed to half shaft gears, a differential mechanism center gear meshed with the two half shaft gears at the same time is arranged on a center gear shaft in a rotating manner, and the center gear shaft is fixed into the differential mechanism shell.

    本专利提供一种同轴驱动车桥,它结构简单可靠,轴向尺寸短,特别适用于对轴向尺寸要求较高的场合。它包括电机、行星齿轮减速器、差速器,固定在壳体上的第一太阳轮和相对于壳体转动的第二太阳轮同轴;每组行星轮包括与两个太阳轮分别啮合的两个同轴固定相连的行星轮并;在电机轴线方向上,转子位于行星轮一侧;行星架具有沿着电机轴线方向向转子一侧延伸的延伸环,转子固定在延伸环上;差速器外壳位于转子内部,差速器外壳与第二太阳轮固定,两根半轴伸入到差速器外壳内与半轴齿轮固定,与两个半轴齿轮同时啮合的差速器中心齿轮转动设置在中心齿轮轴上,中心齿轮轴固定在差速器壳体内。


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    Title :

    Motor-driven coaxial axle


    Additional title:

    电机驱动的同轴车桥


    Contributors:

    Publication date :

    2020-12-08


    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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