The two-gear speed reducer device comprises a driving motor, an input shaft, an intermediate shaft and a differential mechanism, and the input shaft is coaxially and fixedly connected with a first-gear driving wheel and a second-gear driving wheel and is driven by the driving motor; a first-gear driven wheel and a second-gear driven wheel are connected to the intermediate shaft, the second-gear driven wheel is fixedly connected with the intermediate shaft, the first-gear driven wheel is fixedly connected to a hollow connecting shaft through a one-way clutch shaft hub, the hollow connecting shaft is arranged on the intermediate shaft in a sleeving mode, and a speed reduction main gear is fixedly connected to the hollow connecting shaft. The speed reducing gear is meshed with a speed reducing driven gear of the differential shell; according to the structure, the space between the motor and the differential mechanism is fully utilized, the axial size of the whole electric drive assembly is shortened, the arrangement structure of the device is more compact, the requirements for performance parameters such as the motor power and the rotating speed are lower, and the service life of the device is prolonged. And the size and the cost of the power assembly are reduced.
本发明公开了一种两挡减速器装置及对应车辆,包括驱动电机、输入轴、中间轴及差速器,所述输入轴上同轴固定连接有一挡主动轮和二挡主动轮并通过驱动电机驱动;所述中间轴上连接有一挡从动轮和二挡从动轮,二挡从动轮与中间轴固定连接,所述一挡从动轮通过单向离合器轴毂位置固定连接于空心连接轴,所述空心连接轴套设于中间轴上,所述空心连接轴上固定连接有减速主齿轮,并与差速器壳体的减速从齿轮啮合;并通过犬牙离合机构实现中间轴与空心连接轴传动接合或断开,上述结构充分利用了电机与差速器之间的空间,缩短整个电驱动总成的轴向尺寸,使装置在布置结构上更加紧凑,且电机功率、转速等性能参数要求更低,降低了动力总成的尺寸及成本。
Two-gear speed reducer device and corresponding vehicle
一种两挡减速器装置及对应车辆
2023-07-14
Patent
Electronic Resource
Chinese
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