CN2445135Y - 换气风机转动件的磁悬浮结构 - Google Patents

换气风机转动件的磁悬浮结构 Download PDF

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Publication number
CN2445135Y
CN2445135Y CN 00218760 CN00218760U CN2445135Y CN 2445135 Y CN2445135 Y CN 2445135Y CN 00218760 CN00218760 CN 00218760 CN 00218760 U CN00218760 U CN 00218760U CN 2445135 Y CN2445135 Y CN 2445135Y
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China
Prior art keywords
magnetic
ventilation fan
oil
rotating piece
fan rotating
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Expired - Fee Related
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CN 00218760
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季元冰
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Shanghai Aerospace Automobile Electromechanical Co Ltd Shuhang Electric Appli
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Shanghai Aerospace Automobile Electromechanical Co Ltd Shuhang Electric Appli
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Abstract

本实用新型涉及换气风机的磁性部件,为解决换气风机转动部件的平稳性,减少噪声和抖动,本实用新型提供一种换气风机转动件的磁悬浮结构,它是在转轴外设有含油轴承,含油轴承两端各设有两个相斥的磁性垫圈,根据磁性材料同性相斥原理,使含油轴承悬浮在具有斥力的两个垫圈磁场中,运转十分平稳,从而省略了许多高精度加工的零部件,降低了成本,提高了抗震性和可靠性。

Description

换气风机转动件的磁悬浮结构
本实用新型涉及无刷电机,特别属于换气风机的旋转结构部件。
换气风机是单支点结构,其对旋转的转子部件加工要求较高,否则会造成旋转部件的不平衡,使稳定性较差。已有的换气风机多采用微型滚珠轴承结构,即转子带动上下两个微型滚珠轴承,该结构对与其相配的轴承套、轴、弹簧等部件的精度要求很高,一般加工设备难以达到精度。因此,多数换气风机运行时,存在着噪声大和抖动现象,加之微型轴承脆弱,耐震和轴向剪切性能差,成本高等种种弊病,有关科研人员正在设法作结构上的改进。
本实用新型的目的是要提供一种换气风机转动件的磁悬浮结构,它能够可靠平稳地运行,加工简单成本低,消除运行噪声和抖动。
本实用新型的任务是以如下方式完成的,它包含有轴、挡圈、轴套、轴承套、底板,其结构要点是在轴的直径外设有含油轴承,位于轴外含油轴承的两端各设有两个相斥的磁性垫圈。根据磁性材料同性相斥原理,使含油轴承旋转时悬浮在具有斥力的磁场中。
两个相邻相斥的磁性垫圈之间设有间隙,其间隙大小由磁性垫圈的磁性强弱决定。
本实用新型由于采用轴承和磁悬浮垫圈,因此结构简单,省略了许多要求高精度加工的另部件,简化了加工,减低了成本,增加抗震性和可靠性,消除了噪声和抖动现象。
图1是本实用新型的结构示意图。
以下将结合附图的实施例对本实用新型作进一步说明。
图1中,该结构包含有一个轴承套、套内有一个轴1是换气风机中心旋转轴,轴1的上端凹槽里装有一个挡圈,轴1的下端有一个轴套,轴套外有一个底板,轴1的轴径外有一个含油轴承4,位于含油轴承4的上、下端,并套在轴1外径上各有一组相斥的磁悬浮垫圈2和3,垫圈3紧靠在含油轴承4的上、下端,与磁悬浮垫圈2之间设有间隙,本实施例设两相邻磁性垫圈间隙为0.10mm~0.20mm,磁悬浮垫圈2和3形状为圆环形薄片,它用高性能磁性材料钕铁硼制成的,当换风机工作时,轴1转动,利用磁性垫圈同性相斥的作用,使含油轴承4在运转时除轴1的轴径外无其他接触面,即含油轴承悬浮在有斥力的磁场中。

Claims (2)

1.换气风机转动件的磁悬浮结构,包含有轴、挡圈、套承底板其特征在于轴的直径外设有含油轴承,位于轴外,含油轴承的两端,各设有两个相斥的磁性垫圈。
2.根据权利要求1所述的磁悬浮轴承结构,其特征在于两邻相斥磁性垫圈之间设有间隙,其间隙大小按磁性垫圈磁性强弱设定。
CN 00218760 2000-08-10 2000-08-10 换气风机转动件的磁悬浮结构 Expired - Fee Related CN2445135Y (zh)

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Application Number Priority Date Filing Date Title
CN 00218760 CN2445135Y (zh) 2000-08-10 2000-08-10 换气风机转动件的磁悬浮结构

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Application Number Priority Date Filing Date Title
CN 00218760 CN2445135Y (zh) 2000-08-10 2000-08-10 换气风机转动件的磁悬浮结构

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CN2445135Y true CN2445135Y (zh) 2001-08-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003040569A1 (fr) * 2001-11-06 2003-05-15 Dagang Liu Ventilateur possedant un arbre souple et un palier de suspension magnetique
CN102035441A (zh) * 2010-12-20 2011-04-27 奇瑞汽车股份有限公司 一种磁浮式悬置总成

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003040569A1 (fr) * 2001-11-06 2003-05-15 Dagang Liu Ventilateur possedant un arbre souple et un palier de suspension magnetique
CN102035441A (zh) * 2010-12-20 2011-04-27 奇瑞汽车股份有限公司 一种磁浮式悬置总成

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