CN2300757Y - 稀土永磁体磁力轴承 - Google Patents

稀土永磁体磁力轴承 Download PDF

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CN2300757Y
CN2300757Y CN 97211893 CN97211893U CN2300757Y CN 2300757 Y CN2300757 Y CN 2300757Y CN 97211893 CN97211893 CN 97211893 CN 97211893 U CN97211893 U CN 97211893U CN 2300757 Y CN2300757 Y CN 2300757Y
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magnetic
bearing
permanent magnet
rare earth
earth permanent
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骆启明
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Abstract

本实用新型是一种稀土永磁体磁力轴承,属于磁力轴承技术领域。本磁力轴承结构是为高性能稀土永磁材料设计的,结构原理如附图所示,是由永磁体磁环(1)与软磁屏蔽(2)紧密贴合成为磁环组件。上磁环组件作为旋转磁体安装于转轴上。下磁环组件是作为固定磁体安装在基架上。借助磁环间的磁力作用,使轴承处于无摩擦悬浮工作状态。这种轴承具有稳定性好,磁均匀性好,抗过载能力高的特点。适用于高性能电度表中的轴承部件。

Description

稀土永磁体磁力轴承
本实用新型是一种用于电度表的磁力轴承，属于磁力轴承领域。
磁力轴承是高性能长寿命电度表的关键部件。可是现有的磁力轴承多为铝镍钴和铁氧体材质的。由于其性能较低，使轴承的抗过载能力磁稳定性均较低，不能很好满足高性能电度表的使用要求。本磁力轴承结构是为新型高性能稀土永磁材料设计的，在磁稳定性，抗过载能力，磁均匀性等方面均较铝镍钴和铁氧体磁力轴承有很大提高，能很好应用于高性能长寿命电度表中。
本磁力轴承结构原理见附图，系统有一对由永磁体磁环(1)及外部的软磁屏蔽(2)组成磁环组件。上磁环组件作为旋转磁体安装在转动部件的转轴(4)下端。下磁环组件作为固定磁体安装在基架(6)上。中心的导向针(5)与石墨轴承(3)组成的间隙滑配合起到定心导向作用，保证了上下磁环的同心度。上下磁环组件同极性相对，产生的磁推力托起转动部件，使其处于无接触摩擦的悬浮工作状态。达到了轴承的长寿命工作目的。在磁环外的软磁材料屏蔽，不但保护了磁环，而且减少了外界对磁系统的干扰。屏蔽与磁环的紧密贴合结构，与屏蔽内园与磁环外园间有间隙槽的结构相比，前者经向尺寸小，减少了因磁场不均匀对转动部件造成的干扰力矩，同时无间隙槽结构在工艺上更易保证较好的同心度，进一步减小了径向力。径向力小，石墨轴承的磨损就小。且结构简单、工艺性好，宜于大批量生产，适于高性能长寿命电度表。

Claims (1)

1.一种稀土永磁体磁力轴承装置是由一对磁环组件相对设置而成。磁环组件是由一永磁体磁环和一软磁屏蔽紧密贴组成。上下磁环组件之间保持一定工作间隙。
CN 97211893 1997-03-10 1997-03-10 稀土永磁体磁力轴承 Expired - Fee Related CN2300757Y (zh)

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CN 97211893 CN2300757Y (zh) 1997-03-10 1997-03-10 稀土永磁体磁力轴承

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Application Number Priority Date Filing Date Title
CN 97211893 CN2300757Y (zh) 1997-03-10 1997-03-10 稀土永磁体磁力轴承

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CN2300757Y true CN2300757Y (zh) 1998-12-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006122448A1 (en) * 2005-05-20 2006-11-23 Chuy-Nan Chio Magnetic suspension bearing
CN100359194C (zh) * 2003-10-16 2008-01-02 张鑫 一种磁性减阻轴承
CN109667834A (zh) * 2017-10-16 2019-04-23 沈阳登程矿山机械有限公司 一种无侧向力磁悬浮廻转轴承

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100359194C (zh) * 2003-10-16 2008-01-02 张鑫 一种磁性减阻轴承
WO2006122448A1 (en) * 2005-05-20 2006-11-23 Chuy-Nan Chio Magnetic suspension bearing
CN109667834A (zh) * 2017-10-16 2019-04-23 沈阳登程矿山机械有限公司 一种无侧向力磁悬浮廻转轴承

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