The invention relates to the technical field of automatic gearboxes, and discloses an electric motorcycle two-gear automatic gearbox which comprises a box body and a box cover, the box cover is arranged on the box body, a motor rotor is arranged in the box body, and driving teeth are arranged on the right side of the motor rotor; instantaneous stable switching of high and low gears is achieved through forward and reverse rotation of the motor rotor, and the special point that the sum of rotational inertia of the inner ring of the high-gear one-way bearing and the taper hole clutch sleeve is very small and is easy to synchronize when the output end reversely idles is ingeniously designed and utilized, so that the high-gear one-way bearing and the taper hole clutch sleeve rotate synchronously under the action of suction force of the electromagnetic valve. Instantaneous stable transition in the gear shifting process is scientifically achieved, meanwhile, the worldwide-level problem that synchronization needs to be achieved due to the fact that the sum of rotational inertia of the input ends is too large is solved, the defects that due to the fact that a synchronizer is prone to abrasion, the synchronization performance is unstable, the reliability and stability of a gearbox are poor, and cost is greatly increased are thoroughly overcome, and the transmission efficiency is improved. Therefore, a wide market prospect is opened up for the development of the two-gear electric motorcycle.
本发明涉及自动变速箱技术领域,且公开了一种电动摩托车两挡自动变速箱,包括箱体和箱盖,所述箱盖设置在箱体上,所述箱体的内部设置有电机转子,所述电机转子的右侧设置有主动齿;本发明通过电机转子的正反转实现高低档的瞬时平稳切换,巧妙地构思和利用了高挡单向轴承内圈与锥孔离合套在输出端反向空转时转动惯量之和很小易于同步的特殊点,使其在电磁阀吸合力的作用下,科学地实现了挡位切换过程中的瞬时平稳过渡,同时攻克了输入端转动惯量之和过大而又必须要实现同步的世界级难题,彻底改进了同步器易于磨损所导致的同步性能不稳定,使变速箱可靠性稳定性差,成本大大增加的缺点,从而为两档电动摩托车的发展开辟了广阔的市场前景。
Two-gear automatic gearbox of electric motorcycle
一种电动摩托车两挡自动变速箱
2023-10-31
Patent
Electronic Resource
Chinese
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