公开(公告)号：WO2015059641A3

公开(公告)日：2015-08-13

申请号：PCT/IB2014065519

申请日：2014-10-22

Applicant: AISIN TAKAOKA LTD

Inventor： ZHANG ZHONG-ZHI ,  DAI HUAISHENG ,  YAMAGUCHI TOMOHIRO

IPC: F16H48/40

CPC classification number: F16H48/40 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/16 ,  C22C38/20 ,  C22C38/24 ,  F16H48/08 ,  F16H2048/382 ,  F16H2048/385

Abstract: In a differential apparatus component including: a differential case configured to accommodate a differential gear mechanism; and a ring gear provided so as to rotate integrally with the differential case, to provide a configuration which can integrate the differential case and the ring gear by casting while desirably ensuring strength properties required for being used as ring gear. In the differential apparatus component (ring gear-integrated with differential case 12), the differential case and the ring gear are formed integrally and seamlessly of cast steel. Cast Steel is preferably composed of 0.3 to 1.0% by mass of silicon (Si), 0.5 to 1.2% by mass of manganese (Mn), 0.1 to 0.5% by mass of vanadium (V), 0.01 to 0.05% by mass of tin (Sn), 0.1 to 1.5% by mass of chromium (Cr), 0.2 to 1.0% by mass of copper (Cu), and the rest composed of iron (Fe) and unavoidable impurities.

Abstract translation: 在差动装置部件中，包括：差速器壳体，构造成容纳差动齿轮机构; 以及设置成与差速器壳一体旋转的齿圈，从而提供一种能够通过铸造使差速器壳与齿圈一体化的构造，同时期望地确保用作齿圈所需的强度性能。 在差速器装置构成部件（与差速器壳体12一体化的齿圈）中，差速器壳体和齿圈由铸钢一体地且无缝地形成。 铸钢优选由硅（Si）0.3〜1.0质量％，锰（Mn）0.5〜1.2质量％，钒（V）0.1〜0.5质量％，锡0.01〜0.05质量％ （Sn），0.1-1.5质量％的铬（Cr），0.2-1.0质量％的铜（Cu），其余由铁（Fe）和不可避免的杂质组成。