The invention relates to a single-motor two-gear efficient electric drive axle transmission system which is characterized by comprising a motor, a parallel shaft set, a driving gear set, a driven gear set, a gear shifting combination gear, a spline gear hub, a gear shifter, a differential mechanism module and a tire module. Symmetrical arrangement is adopted, gear parameters can be designed more reasonably, the first shaft, the second shaft and the fourth shaft are located on the two sides of the half shaft, the third shaft is a hollow shaft sleeved on the right half shaft, the structure is more stable, and space is saved. According to the gear shifter structure, the two-gear function can be achieved, a low gear is matched with a large transmission speed ratio, four-stage speed reduction is achieved, a large enough torque is provided for a vehicle under the working conditions such as starting, getting out of difficulty and climbing, a high gear is matched with a small transmission speed ratio, and a high enough rotating speed is provided for the vehicle under the high-speed working condition; the first gear is four-stage speed reduction, the transmission ratio is large, and large torque can be provided under the low-speed working condition; and the second gear adopts two-stage speed reduction, so that mechanical loss can be reduced, and the transmission efficiency is improved.
本发明涉及一种单电机两档高效电驱桥传动系统,其特征在于:包括电机、平行轴组、主动齿轮组、被动齿轮组、换挡结合齿、花键齿毂、换挡器、差速器模块和轮胎模块;采用对称式布置,能够更合理的设计齿轮参数,一轴、二轴和四轴位于半轴两侧,三轴为空心轴套在右半轴上,结构更稳定、且节省空间;换挡器结构可以实现两个挡位功能,低挡位匹配一个大的传动速比,四级减速,为车辆在起步、脱困、爬坡等工况时提供一个足够大的扭矩,高挡位匹配一个小的传动速比,为车辆跑高速工况时提供一个足够高的转速;一挡位为四级减速,传动比大,能在低速工况下提供很大扭矩;二档位为两级减速,能够减少机械损耗,提高传动效率。
Single-motor two-gear efficient electric drive axle transmission system
一种单电机两档高效电驱桥传动系统
2024-12-17
Patent
Electronic Resource
Chinese
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