The invention relates to the technical field of automobiles, and discloses a hub reduction gear and a drive axle. The drive axle comprises a planet carrier assembly, a gear ring, a planet wheel, a planet wheel shaft, a sun wheel and a half shaft, the gear ring, the planet wheel, the planet wheel shaft, the sun wheel and the half shaft are arranged in the planet carrier assembly, the planet carrier assembly is fixedly connected with a hub, the sun wheel is fixedly sleeved on the half shaft, the planet wheel shaft is fixed on the planet carrier assembly, and the planet wheel is sleeved on the planet wheel shaft. The planet gear comprises a large planet gear and a small planet gear which are coaxially connected, the tooth number of the large planet gear is larger than that of the small planet gear, the small planet gear is meshed with the sun gear, and the large planet gear is meshed with the gear ring. According to the hub reduction gear, the large planet gear and the small planet gear which are coaxially connected are arranged, so that the reduction ratio of the hub reduction gear can be reduced, the speed can be increased, energy conservation and consumption reduction of a whole vehicle are facilitated, fuel consumption is reduced, and meanwhile the environmental protection property is high. According to the drive axle provided by the invention, by arranging the hub reduction gear, the reduction ratio of the drive axle can be reduced, the vehicle speed can be increased, and energy conservation and consumption reduction of the whole vehicle are facilitated.
本发明涉及汽车技术领域,公开了一种轮边减速器及驱动桥。该驱动桥包括行星架总成和设置于行星架总成内的齿圈、行星轮、行星轮轴、太阳轮和半轴,行星架总成与轮毂固定连接,太阳轮固定套设于半轴上,行星轮轴固定于行星架总成上,行星轮套装在行星轮轴上,行星轮包括同轴连接的大行星轮和小行星轮,大行星轮的齿数大于小行星轮的齿数,小行星轮与太阳轮啮合,大行星轮与齿圈啮合。通过将行星轮设置为同轴连接的大行星轮和小行星轮,从而能够降低轮边减速器的减速比,提升车速,有利于整车的节能降耗,在节省燃油消耗的同时环保性强。本发明提供的驱动桥,通过设置上述轮边减速器,能够降低驱动桥的减速比,提升车速,有利于整车的节能降耗。
Hub reduction gear and drive axle
轮边减速器及驱动桥
2023-07-07
Patent
Electronic Resource
Chinese