The invention belongs to the field of automobile axles, and discloses a double-intermediate-shaft speed reduction structure and an axle. The double-intermediate-shaft speed reduction structure comprises an input shaft, an intermediate gear, an intermediate gear shaft, an output gear, a first sliding gear sleeve and a second sliding gear sleeve. An input gear is arranged on the input shaft and is coaxial with a gear shaft of the driving bevel gear; the two intermediate gears are meshed with the input gear; connecting gears are coaxially arranged on the two middle gear shafts; the output gear is arranged on a gear shaft of the driving bevel gear and is meshed with the two connecting gears; the first sliding gear sleeve can lock or unlock the intermediate gear and the intermediate gear shaft; and the second sliding gear sleeve can lock or unlock the input shaft and the gear shaft of the driving bevel gear. Three transmission modes of speed reduction, no speed reduction and neutral position are achieved, the requirement for a small speed ratio when the whole vehicle is at a high speed and the requirement for a large speed ratio when the whole vehicle is at a heavy load are met, energy consumption is reduced, and the device is suitable for an electric drive axle. A double-intermediate-shaft structure is adopted, the torque of the intermediate gear is reduced, the weight of a transmission system is reduced, and reliability is high.
本发明属于汽车车桥领域,公开一种双中间轴减速结构及车桥。所述双中间轴减速结构包括输入轴、中间齿轮、中间齿轴、输出齿轮、第一滑动齿套和第二滑动齿套。输入轴上设有输入齿轮,并与主动锥齿轮的齿轴同轴;两中间齿轮均与输入齿轮啮合;两中间齿轴上均同轴设有连接齿轮;输出齿轮设于主动锥齿轮的齿轴上,并与两个连接齿轮啮合;第一滑动齿套能将中间齿轮和中间齿轴锁定或解锁;第二滑动齿套能将输入轴和主动锥齿轮的齿轴锁定或解锁。实现减速、无减速及空档三种传动方式,满足整车高速时对小速比的需求、以及重载时对大速比的需求,减少能源消耗,并适用于电驱动车桥;采用双中间轴结构,减小中间齿轮的转矩,减轻传动系的重量,可靠性高。
Double-intermediate-shaft speed reduction structure and axle
一种双中间轴减速结构及车桥
2022-05-17
Patent
Electronic Resource
Chinese
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European Patent Office | 2023
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