The invention relates to a two-stage speed reduction drive axle which comprises a main speed reducer assembly, an axle housing assembly, a brake assembly and a hub assembly. The main speed reducer assembly comprises an input gear shaft, a driving bevel gear shaft, a speed reduction cylindrical gear arranged on the driving bevel gear shaft and meshed with the input gear shaft, and a differential mechanism assembly, and a driven bevel gear arranged on the differential mechanism assembly and meshed with a driving bevel gear on the driving bevel gear shaft; through reasonable transmission analysis, the drive axle main speed reducer with the two-stage speed reduction function is designed, the problems that in an existing new energy commercial axle, a driving bevel gear and a driven bevel gear are extremely prone to being scratched, abnormally abraded, broken and the like are effectively solved, and the service life of the axle is prolonged while the transmission performance of the axle is guaranteed. And the reliability and the safety of the product are obviously improved.

    本发明涉及一种双级减速驱动桥,包括主减速器总成、桥壳总成、制动器总成和轮毂总成;主减速器总成包括输入齿轮轴、主动锥齿轮轴、在主动锥齿轮轴上设置有与输入齿轮轴相啮合的减速圆柱齿轮、差速器总成、在差速器总成上设置有与主动锥齿轮轴上的主动锥齿轮相啮合的被动锥齿轮;本发明通过合理的传动分析,设计了具备两级减速功能的驱动桥主减速器,有效解决了现有新能源商用车桥存在的主被动锥齿轮极易出现齿面擦伤、异常磨损、断裂等问题,在保证车桥传动性能的同时,产品的可靠性及安全性得到了显著提升。


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    Title :

    Two-stage reduction drive axle


    Additional title:

    一种双级减速驱动桥


    Contributors:
    XI FEI (author) / LI CHENG (author) / YAN YUN (author)

    Publication date :

    2023-09-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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