The invention relates to a drive axle based on a half-shaft bearing novel installation system. A brake assembly is arranged on a rear axle housing assembly in a sleeving manner, and a half shaft assembly is mounted on the rear axle housing assembly. The drive axle is characterized in that a half shaft is sleeved with a half shaft bearing, a bearing bush is pressed on the outer side of the half shaft bearing, an inner oil seal is arranged on the surface of the bearing bush, a snap spring is arranged on the outer side of the bearing bush and fixed on the half shaft, an oil seal bush is arrangedon one side of the half shaft bearing, an outer oil seal is pressed on the inner diameter of the oil seal bush, and a bearing baffle is arranged on one side of the outer oil seal and presses and fixesthe half shaft bearing through a brake assembly; and an oil baffle disc is installed between the bearing baffle and the inner side end face of the half shaft, and a brake drum is installed at the endof the half shaft through half shaft bolts. The lightweight drive axle meets the design service life and the axial bearing capacity required by a whole vehicle, meanwhile, the hidden danger that a tapered roller bearing of the drive axle fails due to lack of lubricating grease is eradicated, and the potential safety hazard that gear oil leaks into a brake under extreme conditions to cause failureof a brake system is eradicated.
本发明涉及一种基于半轴轴承新式安装系统的驱动桥,后桥壳总成上套入制动器总成,半轴组合件安装在后桥壳总成上,其特征在于:半轴上套设半轴轴承,半轴轴承外侧压装轴承衬套,轴承衬套表面设有内油封,轴承衬套的外侧设有卡簧,卡簧固定在半轴上,半轴轴承的一侧设有油封衬套,油封衬套内径处压装外油封,外油封的一侧设有轴承挡板,轴承挡板通过制动器总成压紧固定半轴轴承;轴承挡板与半轴的内侧端面之间安装挡油盘,制动鼓通过半轴螺栓安装在半轴端部。该轻量化驱动桥满足整车需求的设计寿命和轴向承载能力同时,杜绝了驱动桥的圆锥滚子轴承因缺失润滑脂而失效的隐患,杜绝了极端情况下齿轮油泄露至制动器内引起制动系统失效的安全隐患。
Drive axle based on half-shaft bearing novel installation system
一种基于半轴轴承新式安装系统的驱动桥
04.09.2020
Patent
Elektronische Ressource
Chinesisch
Crack Identification of Vehicle Drive Axle Half Shaft Rotor System
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