The invention provides a modular coaxial drive axle structure for an electric automobile, and relates to the field of drive axles. The modular coaxial drive axle structure comprises a left half shaftassembly, a motor assembly which is mainly composed of a commutator, a motor rotor, a motor shaft, a fan, a lifting ring screw and a motor stator, a speed reduction differential assembly which is mainly composed of a coupler, a high-speed shaft, a bearing support, a second-stage speed reduction large gear, a differential shell, a planet gear, a half shaft gear, an intermediate shaft, a first-stagespeed reduction large gear and a speed reduction differential shell, and right half axle assembly. The number of the transmission parts is small, light weight is easy to achieve, the transmission efficiency is effectively improved, the gravity center of the drive axle and the gravity centers of wheels are located on the same axis, therefore, extra overturning moment can be avoided, the fatigue life of the drive axle is prolonged, related parts of the drive axle are all arranged within the wheel track range, the structure is compact, and the space utilization rate is high.
本发明提供一种模块化的用于电动汽车的同轴式驱动桥结构,涉及驱动桥领域。本发明包括,左半轴总成,电动机总成,电动机总成主要由换向器、电机转子、电机轴、风扇、吊环螺钉以及电机定子构成,减速差速器总成,减速差速器总成主要由联轴器、高速轴、轴承支架、二级减速大齿轮、差速器壳体、行星齿轮、半轴齿轮、中间轴、一级减速大齿轮和减速差速器壳体构成;右半轴总成。本发明传动件的数目少,易于实现轻量化,并且有效提高了传动效率,本发明的驱动桥重心与车轮的重心在一条轴线上,这样能够避免额外的倾覆力矩,延长驱动桥的疲劳寿命,并且驱动桥的相关部件都布置在轮距范围内,结构紧凑,空间利用率高。
Coaxial modular drive axle structure for electric automobile
一种用于电动汽车的同轴式模块化驱动桥结构
2021-03-16
Patent
Elektronische Ressource
Chinesisch
Dual-motor coaxial electric drive axle and electric automobile
Europäisches Patentamt | 2023
|Electric automobile and double-motor coaxial electric automobile drive axle thereof
Europäisches Patentamt | 2022
|