The invention discloses a pure electric dry type gear shifting double-speed transmission system. A motor coaxially drives a front planet row and a rear planet row which are composed of sun wheels, planet wheels and gear rings. The planet wheel of the front planet row is linked with a gear ring of the rear planet row through a front rotating arm; the planet wheel of the rear planet row outputs power; a motor drives the combined front and rear planet rows; transmission ratio requirement is easily satisfied, an internal transmission mechanism is more compact in design; the number of gear teeth can be adjusted flexibly, the mass and the size of a transmission are effectively reduced; and the sun wheels are used for bearing the high rotating speed of the motor, the transmission efficiency is higher, vibration and noise are smaller, when a dry brake is selected for braking or clutching the planet row, multiple driving modes are achieved through gear switching, the power generation efficiencyof the motor is higher, and the energy utilization rate is increased.
本发明公开了一种纯电动干式换挡双速传动系统,其电机同轴地驱动着由太阳轮、行星轮和齿圈构成的前行星排和后行星排,前行星的行星轮与后行星排的齿圈通过前转臂联动,后行星排的行星轮输出动力,电机驱动复合式的前后行星排,容易满足传动比要求,内部传动机构设计更为紧凑,齿轮齿数调整灵活,有效降低变速器的质量和缩小变速器的尺寸,并且由太阳轮作为承接电机的高转速,传动效率更高,振动和噪声更小,当选用干式制动器对行星排进行制动或离合时,通过挡位切换实现多种驱动模式,使得电机的发电效率更高,提高能量利用率。
Pure electric dry type gear shifting double-speed transmission system
纯电动干式换挡双速传动系统
2020-07-10
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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