The commercial vehicle electric drive axle three-gear transmission structure comprises a motor and an input shaft, and an input-stage driving gear is arranged on the input shaft and meshed with an input-stage driven gear on an intermediate shaft; the first-gear driving gear and the third-gear driving gear are arranged on the intermediate shaft and are respectively meshed with the first-gear driven gear and the third-gear driven gear; a first-gear driven gear and a third-gear driven gear are hollowly sleeved on an output shaft through a needle bearing, power is transmitted to the output shaft through a gear shifting sliding sleeve structure, an output-stage driving gear is fixed on the output shaft and meshed with the output-stage driven gear to transmit first-gear power and third-gear power to a differential mechanism shell, and the first-gear power and the third-gear power are transmitted to wheels through a differential mechanism and a half shaft to achieve first-gear and third-gear mode driving. The second-gear transmission gear is hollowly sleeved on the differential mechanism shell through a needle bearing and is meshed with the first-gear driven gear; and when the second-gear shifting sliding sleeve structure is in gear engagement, the differential mechanism and the half shaft transmit power to wheels to realize second-gear mode driving. A three-gear transmission structure is adopted, the speed ratio stage difference is reasonable, power transition between gears is more stable, and the transmission high-efficiency area is wider.
本发明公开了一种商用车电驱动桥三挡传动结构,包括电机和输入轴,输入级主动齿轮设在输入轴上并与中间轴上的输入级被动齿轮啮合;一、三挡主动齿轮设在中间轴上并分别与一、三挡被动齿轮啮合;一、三挡被动齿轮通过滚针轴承空套在输出轴上,通过换挡滑套结构将动力传至输出轴,输出级主动齿轮固定在输出轴上并与输出级被动齿轮啮合将一、三挡动力传至差速器壳体,通过差速器和半轴传至车轮实现一挡和三挡模式行车;二挡传动齿轮通过滚针轴承空套在差速器壳体上并与一挡被动齿轮啮合,二挡换挡滑套结构挂挡时由差速器和半轴将动力传至车轮实现二挡模式行车。本发明采用三挡传动结构,速比级差合理,挡位间动力过渡更平稳,传动高效率区域更广泛。
Three-gear transmission structure of electric drive axle of commercial vehicle
一种商用车电驱动桥三挡传动结构
2024-12-17
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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