The invention discloses a single-motor multi-gear electric drive axle structure and a vehicle. A single-motor multi-gear electric drive axle structure comprises a motor, a first shaft, a second shaft, a third shaft, a second shaft gear shifting planet row structure, a third shaft gear shifting planet row structure, a second shaft gear shifting structure, a third shaft gear shifting structure and a differential mechanism structure, and a first shaft output gear is meshed with a second shaft input gear rigidly arranged on the second shaft in a sleeving mode; the second shaft is sleeved with a second shaft gear shifting planet row structure and a second shaft gear shifting structure, and a second shaft gear shifting combination sleeve can do axial reciprocating motion relative to a second shaft gear shifting gear hub. A three-shaft gear shifting structure and a three-shaft gear shifting planet row structure are coaxially and rigidly arranged on the three shaft in a sleeving mode, and a three-shaft gear shifting combination sleeve can do axial reciprocating motion relative to a three-shaft gear shifting gear hub. When the two-shaft gear shifting combination sleeve moves to different positions and the three-shaft gear shifting combination sleeve moves to different positions, gear shifting is achieved. By the adoption of the transmission mechanism, the overall structure is compact, the number of transmission stages is small, the gear speed ratio is large, the gear step ratio is reasonable, transmission efficiency is high, and cost is low.
本申请公开了一种单电机多挡电驱桥结构及车辆。单电机多挡电驱桥结构,包括:电机、一轴、二轴、三轴、二轴换挡行星排结构、三轴换挡行星排结构、二轴换挡结构、三轴换挡结构和差速器结构,一轴输出齿轮与刚性套设在二轴上的二轴输入齿轮啮合;二轴上套设有二轴换挡行星排结构和二轴换挡结构,二轴换挡结合套可相对二轴换挡齿毂做轴向往复运动;三轴上同轴刚性地套设有三轴换挡结构和三轴换挡行星排结构,三轴换挡结合套可相对三轴换挡齿毂做轴向往复运动;二轴换挡结合套运动到不同的位置、三轴换挡结合套运动到不同的位置时,实现挡位切换。采用本申请,总体结构紧凑,传动级数少,且挡位速比大,挡位阶比合理,传动效率高,成本低。
Single-motor multi-gear electric drive axle structure and vehicle
单电机多挡电驱桥结构及车辆
2024-02-20
Patent
Electronic Resource
Chinese
Single-motor coaxial two-gear electric drive axle structure
European Patent Office | 2023
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