The invention relates to an electric drive axle power assembly, a control method thereof and engineering machinery, the electric drive axle power assembly comprises a motor, a gearbox, a differential mechanism and a hub reduction gear, and the output end of the motor is connected with an input shaft; the gearbox comprises a plurality of gear pairs, a first gear switching mechanism, a plurality of planet rows and a second gear switching mechanism, each gear pair comprises a driving gear and a driven gear which are meshed with each other, the driving gear sleeves the input shaft through a bearing, and the driven gear fixedly sleeves the intermediate shaft; the first gear switching mechanism is used for switching a power transmission path from the input shaft to the intermediate shaft; the planet rows are arranged in series in the axial direction of the intermediate shaft. The second gear switching mechanism is used for switching a power transmission path from the intermediate shaft to the output shaft. The input end of the differential is in transmission connection with the output shaft; the two hub reducers are connected with the two output ends of the differential mechanism through the two half shafts respectively. The structure design is novel, the transmission chain is short, and the transmission efficiency can be improved.
本发明涉及电驱动桥动力总成、其控制方法及工程机械,电驱动桥动力总成包括电机、变速箱、差速器和轮边减速器,电机的输出端连接有输入轴;变速箱包括多对齿轮副、第一挡位切换机构、若干个行星排和第二挡位切换机构,每对齿轮副均包括相啮合的主动齿轮和被动齿轮,主动齿轮通过轴承套设于输入轴上,被动齿轮固定套设于中间轴上;第一挡位切换机构用于切换由输入轴至中间轴的动力传递路径;若干个行星排沿中间轴的轴向串联设置;第二挡位切换机构用于切换由中间轴至输出轴的动力传递路径。差速器的输入端与输出轴传动连接;两个轮边减速器分别通过两个半轴与差速器的两个输出端连接。本发明结构设计新颖,并且传动链较短,能够提高传动效率。
Electric drive axle power assembly, control method thereof and engineering machinery
电驱动桥动力总成、其控制方法及工程机械
2023-06-23
Patent
Electronic Resource
Chinese
Drive axle of engineering machinery and engineering machinery
European Patent Office | 2023
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