The invention discloses a double-row planetary gear coaxial type electric driving system which is characterized in that a power output shaft of an input motor is connected with a sun gear of a first row of planetary gear mechanism, a planet carrier of the first row of planetary gear mechanism is connected with a sun gear of a main reduction planetary gear mechanism, and an outer gear ring of the main reduction planetary gear mechanism is connected with an outer shell of a differential mechanism; the right end of the left transmission shaft is connected with a left output planet bevel gear in the differential mechanism, the right transmission shaft penetrates through the right end of an outer shell of the differential mechanism and is in running fit with the right end of the outer shell of the differential mechanism, and the left end of the right transmission shaft is connected with a right output planet bevel gear in the differential mechanism. The power assembly is designed in an integrated mode, and the light weight degree is higher; the speed reducer adopts double-row planetary gear arrangement, the transmission efficiency is high, and the whole vehicle arrangement space utilization rate is higher; the mass center point of the power assembly can be coaxial with the input shaft, the transmission speed ratio selection range is wider, the vehicle type applicability is higher, and meanwhile the requirement for the performance of a suspension system is relatively low.
本发明公开了一种双排行星齿轮同轴式电驱动系统,输入电机的动力输出轴与第一排行星齿轮机构的太阳轮相连,第一排行星齿轮机构的行星架与主减行星齿轮机构的太阳轮相连,主减行星齿轮机构的外齿圈与差速器的外壳体相连;左传动轴的右端与差速器内的左输出行星锥齿轮相连,右传动轴穿过差速器的外壳体的右端并与差速器的外壳体的右端转动配合,右传动轴的左端与差速器内的右输出行星锥齿轮相连。本发明的动力总成集成化设计,轻量化程度更高;减速器采用双排行星齿轮布置,传递效率高,整车布置空间利用率更高;动力总成质心点可与输入轴同轴且传递速比选择更广,车型适用更强,同时对悬置系统性能要求相对较低。
Double-row planetary gear coaxial type electric driving system
双排行星齿轮同轴式电驱动系统
02.12.2022
Patent
Elektronische Ressource
Chinesisch
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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