The invention relates to the technical field of automobile axles, in particular to a two-stage hub reduction gear which comprises a reduction gear shell and a planetary reduction mechanism, and the planetary reduction mechanism comprises a first gear ring, a second gear ring, a planet carrier assembly, a sun gear, a first planet gear and a second planet gear. The first gear ring is fixedly arranged on the speed reducer shell and coaxially arranged with the speed reducer shell, the sun gear, the first planet gear and the second planet gear are rotationally arranged on the planet carrier assembly, the sun gear and the second gear ring are coaxially arranged and used for being in transmission connection with a half shaft of a drive axle, and the first planet gear is meshed with the sun gear and inner teeth of the second gear ring. And the second planet gear is meshed with outer teeth of the first gear ring and outer teeth of the second gear ring, and the working condition requirements of low speed ratio and high torque of a vehicle are met by arranging the two-stage speed reduction mechanism. The invention provides the drive axle which is provided with the two-stage hub reduction gear, so that the power of a vehicle is improved.
本发明涉及汽车车桥技术领域,尤其涉及一种双级轮边减速器,其包括减速器壳体和行星减速机构,行星减速机构包括第一齿圈、第二齿圈、行星架组件、太阳轮、第一行星轮和第二行星轮,第一齿圈固设于减速器壳体上并与减速器壳体同轴线设置,太阳轮、第一行星轮和第二行星轮转动设置于行星架组件上,太阳轮与第二齿圈同轴线设置且用于与驱动桥的半轴传动连接,第一行星轮分别与太阳轮以及第二齿圈的内齿啮合,第二行星轮分别与第一齿圈以及第二齿圈的外齿啮合,通过设置两级减速机构,满足了车辆低速比,高扭矩的工况需求。本发明提供了一种驱动桥,该驱动桥通过设置上述的双级轮边减速器,提高了车辆的动力。
Two-stage hub reduction gear and drive axle
双级轮边减速器及驱动桥
2024-12-27
Patent
Electronic Resource
Chinese