The invention provides a coaxial drive axle which is compact in structure, small in size, light in weight, large in transmission ratio and high in transmission efficiency. The coaxial drive axle comprises a differential mechanism, a motor, a planetary gear speed reducer, a first sun gear and a second sun gear, wherein the axis of the first sun gear fixed on a shell coincides with the axis of the second sun gear rotating relative to the shell. Each group of planet wheels comprises two planet wheels which are respectively meshed with the two sun gears and are coaxially and fixedly connected, andin the axis direction of the motor, a differential mechanism shell is positioned between a rotor shaft and the second sun gear; a planet carrier is provided with an extension ring extending towards one side of the rotor shaft in the axis direction of the motor, and the rotor shaft is connected with the extension ring; and the differential mechanism shell is located in the extension ring and fixedto the second sun gear, two half shafts extend into the differential mechanism shell to be fixed to half shaft gears, a 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,它结构紧凑,体积小重量轻,具有较大的传动比,传动效率高。它包括差速器、电机、行星齿轮减速器,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轴线重合;每组行星轮包括与两个太阳轮分别啮合的同轴固定相连的两个行星轮,在电机轴线方向上,差速器外壳位于转子轴与第二太阳轮之间;行星架具有沿着电机轴线方向向转子轴一侧延伸的延伸环,转子轴与延伸环相连;差速器外壳位于延伸环内部,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。
Axial-arrangement coaxial drive axle
轴向排列的同轴驱动车桥
2020-12-08
Patent
Electronic Resource
Chinese
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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