The invention belongs to the technical field of coaxial electric drive axles, and discloses a distributed coaxial electric drive axle suitable for a new energy commercial vehicle, and the distributed coaxial electric drive axle is composed of an axle housing, a wheel edge motor, a wheel edge transmission system, a disc brake, an upper cross beam and a lower cross beam; the wheel edge transmission system is composed of a first-stage speed reducer assembly, a wheel edge planetary speed reducer and a hub assembly. An output shaft of the motor and a wheel edge output shaft are coaxially designed, the occupied space of a power system is greatly reduced, the weight of the system is reduced, a transmission chain is shortened, the transmission efficiency and NVH are improved, through wheel edge integration, the weight of a driving system is reduced, the arrangement space of power performance is saved, a power transmission chain is shortened, and the transmission efficiency is improved; through the structural design that double middle parallel shafts are used in the first stage, coaxial arrangement of motor output and wheel edge output is achieved, and the NVH performance of the whole bridge is improved; by using the upper and lower cross beam mechanism, the structure is simple, the cost is low, and the production is easy to realize.
本发明属于同轴电驱桥技术领域,且公开了一种适用于新能源商用车用分布式同轴电驱桥,分布式同轴驱桥由桥壳、轮边电机、轮边传动系统、盘式制动器以及上横梁和下横梁组成;轮边传动系统由一级减速器总成、轮边行星减速器以及轮毂总成组成。电机的输出轴与轮边输出轴进行同轴设计,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,提高了传动效率和NVH,通过轮边集成,降低驱动系统重量、节省动力性的布置空间、缩短动力传动链、提高传动效率;通过一级使用双中间平行轴结构设计,实现电机输出与轮边输出同轴布置,改善整桥NVH性能;通过使用上、下横梁机构形式,结构简单,成本低,生产易于实现。
Distributed coaxial electric drive axle suitable for new energy commercial vehicle
一种适用于新能源商用车用分布式同轴电驱桥
07.04.2023
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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Europäisches Patentamt | 2023
|Coaxial electric drive axle arrangement structure of commercial vehicle
Europäisches Patentamt | 2020
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