The invention relates to a two-speed coaxial motor speed reducer assembly and an integrated electric drive axle assembly. The two-speed coaxial motor speed reducer assembly comprises a speed reducer shell; the differential mechanism comprises a differential mechanism shell and a differential gear pair used for connecting the left half shaft and the right half shaft. The first-stage speed reduction mechanism comprises an input sun gear; the output planet carrier is fixed to the differential mechanism shell. The transmission mechanism is connected with the input sun gear and the output planet carrier; the input end of the second-stage speed reducing mechanism is connected with the transmission mechanism, the output end of the second-stage speed reducing mechanism is selectively connected with the differential mechanism shell or the speed reducer shell through the gear shifting mechanism, part of power transmitted by the transmission mechanism is transmitted to the differential mechanism shell in a speed reduction mode, or power transmission between the transmission mechanism and the second-stage speed reducing mechanism is blocked. Multi-gear power output can be achieved, the whole transmission system is coaxially arranged around the axis of the half shaft, the integration degree is high, the structure is compact, the torque density is high, the mass center of the electric drive axle transmission system assembly is close to the center of the axle housing, and the stress balance of an electric drive axle is good.
本发明涉及一种两速同轴电机减速器总成及集成电驱桥总成,两速同轴电机减速器总成包括:减速器壳体;差速器,包括差速器壳体和用于连接左右半轴的差速齿轮副;一级减速机构包括:输入太阳轮;输出行星架与差速器壳体固定;传动机构连接输入太阳轮和输出行星架;二级减速机构输入端与传动机构连接,输出端通过换挡机构可选择的与差速器壳体或者减速器壳体连接,将传动机构传递动力的部分动力减速传递至差速器壳体,或者阻断传动机构和二级减速机构之间动力传递。本申请可实现多档位动力输出,且整个传动系统围绕半轴轴线同轴布置,集成度高,结构紧凑,扭矩密度高,电驱桥传动系统总成质心靠近桥壳中心,电驱桥受力平衡性好。
Two-speed coaxial motor reducer assembly and integrated electric drive axle assembly
一种两速同轴电机减速器总成及集成电驱桥总成
2024-03-26
Patent
Electronic Resource
Chinese
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