The invention belongs to the technical field of electric drive axles, and discloses a distributed coaxial two-gear integrated electric drive axle suitable for a new energy commercial vehicle, which comprises a wheel edge motor, a drum brake, a lower thrust support rod, a plate spring bracket and an upper thrust support, and further comprises two groups of wheel edge transmission systems, an output shaft of the wheel edge motor is in transmission connection with a first-stage planetary gear mechanism of the wheel edge transmission system, and the first-stage planetary gear mechanism outputs power and is in transmission connection with a second-stage planetary gear mechanism. The driving motor, the transmission system, the bearing system and the braking system are highly integrated, the occupied space of a power system can be greatly reduced after integration, the weight of the system is reduced, a transmission chain is shortened, an output shaft of the motor and a wheel edge output shaft are coaxially designed, the NVH performance of the whole axle is improved, and the service life of the axle is prolonged. The first-stage speed reducer is composed of three stages of planetary gear mechanisms, and the efficient operation time of the motor is prolonged through two gears, so that the transmission efficiency of the whole axle is improved.
本发明属于电驱桥技术领域,且公开了一种适用新能源商用车用分布式同轴两档集成电驱桥,包括轮边电机、鼓式制动器、下推力支杆、板簧托架和上推力支架,还包括有两组轮边传动系统,所述轮边电机的输出轴传动连接轮边传动系统的一级行星齿轮机构,所述一级行星齿轮机构输出动力并传动连接有二级行星齿轮机构。本发明通过将驱动电机、传动系统、承载系统以及制动系统高度集成,集成后可以大幅度降低动力系统占用空间,降低系统重量,缩短了传动链,而且电机的输出轴与轮边输出轴进行了同轴设计,提高整桥的NVH性能,一级减速器由3级行星齿轮机构组成,并通过2档提高电机高效运行时间,从而提升整桥传动效率。
Distributed coaxial two-gear integrated electric drive axle suitable for new energy commercial vehicle
一种适用新能源商用车用分布式同轴两档集成电驱桥
04.04.2023
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 / B60B VEHICLE WHEELS , Räder für Fahrzeuge / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16H Getriebe , GEARING |
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