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1. 发明专利

JP2013122286A Continuously variable transmission pulley and continuously variable transmission 有权
标题翻译：连续可变变速器和连续可变传动
公开(公告)号：JP2013122286A
公开(公告)日：2013-06-20
申请号：JP2011270981
申请日：2011-12-12
申请人： Jatco Ltd , ジヤトコ株式会社 , Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： YOSHIDA MAKOTO , IKEDA ATSUSHI , TSUJI YOICHI , TOYODA HIROAKI , OGAWA YOHEI , KONISHI JUN , KINO NOBURO , INOUE KEISUKE , ISHIKURA RYOHEI , TOZAWA YUSUKE , NAKAJIMA TOMOYUKI , ISHIDA KAZUHISA
IPC分类号： F16H55/52 , C22C38/00 , C22C38/18 , C22C38/54 , F16H9/12
摘要： PROBLEM TO BE SOLVED: To provide a continuously variable transmission pulley suppressing softening when a temperature rises due to heat generation associated with frictional contact with a belt and improving wear resistance of a sheave surface so that it is durable for the use at a high surface pressure.SOLUTION: In a continuously variable transmission pulley with a sheave surface using steel containing at least silicon (Si) and chromium (Cr) and subjected to surface hardening heat treatment and in frictional contact with a continuously variable transmission belt, the Si content is set to 0.35-1.2 mass%, the Cr content is set to 0.30-1.25 mass%, carburizing and quenching and tempering are performed in the surface hardening heat treatment, the surface carbon C content of the sheave surface after the surface hardening heat treatment is set to 0.65-1.0 mass%, and relations of H=160×C+65×Si+30×Cr+455>625 (Hv) are satisfied, where the surface hardness H of the sheave surface after the tempering at the maximum use environment temperature is obtained in terms of Vickers hardness.
摘要翻译：要解决的问题：提供一种当由于与带的摩擦接触相关的发热而导致的温度升高时抑制软化的无级变速传动滑轮，并且改善了滑轮表面的耐磨性，使得其耐用于在高表面压力。解决方案：在具有至少包含硅（Si）和铬（Cr）的钢的带轮表面的无级变速传动轮中，进行表面硬化热处理并与无级变速传动带摩擦接触，Si含量设定为0.35〜1.2质量％，将Cr含量设定为0.30〜1.25质量％，进行表面硬化热处理时的渗碳淬火回火，表面硬化热处理后的滑轮表面的碳C含量设定为0.65〜1.0质量％，并且满足H = 160×C + 65×Si + 30×Cr + 455> 625（Hv）的关系，其中回火后的滑轮表面的表面硬度H在最大值使用环境温度取自维氏硬度。版权所有（C）2013，JPO＆INPIT

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