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标 题: 3- and 4-contact point spindle bearings - a new approach for high speed spindle systems
三接触点和四接触点主轴轴承——高速主轴系统的新方法
作 者: M. Weck
G. Spachtholz
关键词: Spindle system  [主轴系统]
Ball bearing  [ 滚珠轴承]
High speed  [ 高速]
出版年: 2003
期刊名: CIRP Annals
CIRP年刊
年卷期: 2003, vol.52, no.1
摘 要: One important demand on spindle systems in modern machine tools is to realise higher rotational speeds in order to increase the machining efficiency. In conventional spindle bearings the contact angles on inner and outer ring deviate extremely from one another with rising rotational speeds due to centrifugal forces. Axial shift of the inner ring (elastic mounted bearing) and increasing normal forces in the contact zones on the outer ring are typical consequences leading to high internal bearing loads and a reduced life span. Based on these problems bearings with a new inner geometry are studied. Instead of two contact zones these bearings have three or four contact zones to ensure constant contact angles and reduced normal forces on the outer ring. In this paper analytic operation studies and first experimental tests are presented.

现代机床主轴系统的一个重要需求是实现更高的转速,以提高加工效率。在传统主轴轴承中,由于离心力的作用,随着转速的增加,内圈和外圈的接触角之间存在显著偏差。内圈的轴向位移(弹性支承轴承)以及外圈接触区正向力的增大,是导致轴承内部载荷过高、使用寿命缩短的典型问题。针对这些问题,本文研究了一种具有新型内圈结构的轴承。该轴承采用三个或四个接触区,取代传统的两个接触区,以确保恒定的接触角,并降低外圈上的正向力。本文介绍了该轴承的理论分析运行研究及首次实验测试结果。
中文内容为网络AI翻译,专业术语未必准确,仅供参考。

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