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1. 发明专利

JP2007155009A Sliding joint with slit and its manufacturing method 有权
标题翻译：滑动接头及其制造方法
公开(公告)号：JP2007155009A
公开(公告)日：2007-06-21
申请号：JP2005351423
申请日：2005-12-06
申请人： Nsk Ltd , 日本精工株式会社
发明人： HIRANO SHINTARO , KIKUCHI KIYOSHI , ISHIWATARI KAZUYUKI
IPC分类号： F16D1/02 , F16D3/06
摘要： PROBLEM TO BE SOLVED: To further improve the torsional rigidity and the bending rigidity of a joint portion between a female serration groove of an outer shaft and a male serration groove of an inner shaft. SOLUTION: A die 5 is pressed through one axial end side of a first drawn portion 21 of a fourth intermediate material 14, a second drawn portion 23 is formed on the outer peripheral face near one axial end side of the first drawn portion 21 with drawing work, and the outer diameter and the inner diameter of the first drawn portion 21 are shrunk. The male serration groove 71 of the inner shaft 7 is inserted into the female serration groove 4 of the outer shaft 2, and a retainer ring 8 is externally fitted to a lock recessed portion 22 in the state of elastically shrinking the diameter on one axial end side of the second drawn portion 23. In the state of assembling the inner shaft 7 on the outer shaft 2, the female serration groove 4 is strongly pushed against the outer periphery of the male serration groove 71 at two points of an inner diameter 231 on the other axial end side of the second drawn portion 23 and an inner diameter 232 on the one axial end side of the second drawn portion 23. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：进一步提高外轴的阴齿槽与内轴的公齿槽之间的接合部的扭转刚度和弯曲刚度。解决方案：模具5被压在第四中间材料14的第一拉伸部分21的一个轴向端侧，第二拉伸部分23形成在第一拉伸部分的一个轴向端侧附近的外周面上并且第一拉出部21的外径和内径收缩。内轴7的公齿槽71插入外轴2的阴齿槽4中，并且在一个轴向端部弹性收缩直径的状态下将保持环8外嵌于锁定凹部22 在将内轴7组装在外轴2上的状态下，阴齿槽4在内径231的两点处被强力地推靠在公齿槽71的外周面上第二拉伸部分23的另一个轴向端侧和第二拉伸部分23的一个轴向端侧上的内径232。版权所有：（C）2007，JPO＆INPIT

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