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2. 发明授权

US5303985A Cast one-piece axle housing 失效
标题翻译：铸一体式轴箱
公开(公告)号：US5303985A
公开(公告)日：1994-04-19
申请号：US763901
申请日：1991-09-23
申请人： Mark C. Barnholt , John Oswald , Ronald I. Rhoads
发明人： Mark C. Barnholt , John Oswald , Ronald I. Rhoads
IPC分类号： B22D25/02 , B60B35/16 , B60G17/005 , C21D9/00 , C21D9/08 , C22C37/00 , F16C3/02 , B60B35/08
CPC分类号： B60B35/006 , B60B35/16 , B60G17/005 , B60B2310/202 , B60B2310/228 , B60B2310/234 , B60B2310/54 , B60B2360/10 , B60G2200/32 , B60G2204/46 , Y10T74/2188
摘要： A structure for a housing for an axle assembly and method for manufacturing same is disclosed. The housing includes a tube which is formed by casting. The tube is cast having a brake flange, a spring seat, a shock absorber pad, and an outer end for mounting wheel bearings, all of which are integrally formed therewith. The tube is generally hollow and cylindrical in shape, but is formed having an outer circumferential surface which is generally circular in shape and an inner circumferential surface which is generally oval in shape. Thus, the wall thickness of the tube is not uniform about the circumference thereof. Rather, the wall thicknesses of the upper and lower portions of the tube are somewhat greater than the wall thicknesses of the side portions thereof. The wall thicknesses of the upper and lower portions of the tube are sized to accommodate vertically oriented loads induced therein which are generally larger than horizontally oriented loads which are normally encountered in use. The tube is cast from an iron alloy and is subjected to an austempering heat treatment process.
摘要翻译：公开了一种用于轴组件的壳体的结构及其制造方法。壳体包括通过铸造形成的管。管子具有制动凸缘，弹簧座，减震器垫和用于安装车轮轴承的外端，所有这些都与其一体形成。该管通常是中空的和圆柱形的，但是形成为具有大致圆形的外周表面和大致椭圆形的内周表面。因此，管的壁厚围绕其周长不均匀。相反，管的上部和下部的壁厚稍大于其侧部的壁厚。管的上部和下部的壁厚的尺寸适于容纳在其中感应的垂直取向的负载，其通常大于通常在使用中遇到的水平定向的负载。该管由铁合金铸造并进行奥氏体淬火热处理工艺。

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