The invention discloses a double-motor multi-gear electric driving mechanism, which combines a planet row and a fixed shaft gear set, realizes eight gears through four groups of fixed shaft gears and one planet row, has fewer integral parts and shortened axial length, and forms a transition gear jointly driven by double motors in the gear shifting process through a double-motor coaxial input mode, so that the transmission efficiency is improved. Gear shifting without power interruption is achieved; the third rotating shaft is located between the input shaft and the output shaft, the mode of double parallel countershafts is adopted, larger input torque can be borne, the torque borne by gears is smaller, the power density is improved, and the system size is smaller under the same power requirement. A power takeoff interface can be arranged at the end part to drive other accessories in the mechanism; all gear shifting execution elements are arranged on the intermediate shaft, so that all gear shifting actions can be completed by only one group of gear shifting forks, the structure is simplified, and the system cost is reduced.
本发明公开了一种双电机多挡位电驱动机构,组合行星排和定轴齿轮组,通过4组定轴齿轮和1个行星排实现8个挡位,结构整体零件更少,轴向长度变短,并且通过双电机同轴输入的方式,在换挡过程中形成双电机共同驱动的过渡挡位,实现无动力中断换挡;第三转轴位于输入轴和输出轴之间,采用双平行副轴的方式,可以承载更大的输入扭矩,齿轮承受转矩更小,提高了功率密度,同样的功率需求下,系统体积更小;并且可在端部设置取力器接口,驱动机构中的其它附件;所有的换挡执行元件均布置在中间轴上,因此只需一组换挡拨叉就可以完成所有换挡动作,结构简化,系统成本降低。
Dual-motor multi-gear electric driving mechanism
一种双电机多挡位电驱动机构
2023-04-04
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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