CN103629232A - 永磁减载径向滚子轴承 - Google Patents

永磁减载径向滚子轴承 Download PDF

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Publication number
CN103629232A
CN103629232A CN201310576366.9A CN201310576366A CN103629232A CN 103629232 A CN103629232 A CN 103629232A CN 201310576366 A CN201310576366 A CN 201310576366A CN 103629232 A CN103629232 A CN 103629232A
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China
Prior art keywords
rollers
roller bearing
permanent
magnetic
ring
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CN201310576366.9A
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English (en)
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钱坤喜
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Individual
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Individual
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Priority to CN201310576366.9A priority Critical patent/CN103629232A/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • F16C39/066—Permanent magnets with opposing permanent magnets repelling each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0425—Passive magnetic bearings with permanent magnets on both parts repelling each other for radial load mainly

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本发明涉及机械零件领域。本发明提供了一种永磁减载径向滚子轴承。它由外圈、内圈、滚子和4个环形永久磁钢组成。其特征在于内、外圈之间安装有滚子，如同常用径向滚子轴承一样；永久磁钢是四个圆环，均轴向充磁，磁极方向相同，其中一对大、小环形磁钢位于滚子左侧，上、下对齐，分别紧固在内圈和外圈，另外一对大、小环形磁钢位于滚子右侧，上、下对齐，也分别紧固在内圈和外圈。这种结构利用磁环之间的排斥力，局部抵消内、外圈对滚子的挤压力，减小滚子承受的载荷，降低振动及噪声，延长滚子轴承的使用寿命。

Description

永磁减载径向滚子轴承
本发明涉及机械零件领域，主要利用永磁体同极相斥原理为径向滚子轴承减载。 
目前，滚子轴承被广泛应用子机械装置，它的寿命决定整个装置的寿命。滚子轴承的寿命，与其承受的载荷有直接关系，如果减小滚子轴承的载荷，则轴承的寿命就能延长。 
径向滚子轴承的载荷，主要是内、外圈挤压滚子的机械力，减小这个力就能为径向滚子轴承减载。 
本发明的目的提供了一种永磁减载径向滚子轴承，它利用永磁体同极相斥原理为径向滚子轴承减载。 
本发明的目的是这样实现的：如附图所示，内圈和外圈之间像常用径向滚子轴承一样安装有滚子，滚子的左侧和右侧分别装有两个大、小永磁体圆环，圆环之间的排斥力抵消一部分内、外圈对滚子的挤压力，为滚子提供减载的效果。图1是本发明的结构示意图。 
如图1所示，内圈和外圈之间像常用径向滚子轴承一样安装有滚子，四个环形永久磁钢轴向长度和径向厚度相同，均轴向充磁，其中一对大、小环形磁钢位于滚子左侧，上、下对齐，磁极方向相同，分别紧固在内圈和外圈，另外一对大、小环形磁钢位于滚子右侧，上、下对齐，磁极方向相同，也分别紧固在内圈和外圈。由于磁环之间的排斥力，内圈与外圈挤压滚子的力就被部分抵消，滚子承受的载荷得到减小，从而降低系统的振动及噪声，延长滚子轴承的使用寿命。 
本发明的优点，用永磁轴承减载径向滚动机械轴承，降低滚子与内、外圈之间的磨损，从而可以提高轴承的转速，减小振动和噪音，延长使用寿命。 

Claims (1)

1.一种永磁减载径向滚子轴承，由内圈、外圈、滚子及2个大环形永久磁钢和2个小环形永久磁钢组成，其特征是，1个大磁环与1个小磁环组成一组，两组大、小磁环轴向长度和径向厚度相同，上、下对齐，分别位于滚子的左、右两侧；大、小磁环都轴向充磁，方向相同，大磁环固定在外圈，小磁环固定在内圈。
CN201310576366.9A 2013-11-18 2013-11-18 永磁减载径向滚子轴承 Pending CN103629232A (zh)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108518422A (zh) * 2018-04-13 2018-09-11 无锡民联汽车零部件有限公司 基于电磁感应测转速的汽车轴承
CN110630634A (zh) * 2019-10-03 2019-12-31 张耕乾 一种摩擦小不易变形的轴承
CN111237339A (zh) * 2020-01-14 2020-06-05 燕山大学 一种减少齿轮泵平衡径向力的磁性滚动轴承及寿命计算方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233950A (en) * 1961-05-30 1966-02-08 Baermann Max Permanent magnetic bearing
GB2066380A (en) * 1979-12-19 1981-07-08 Ultra Centrifuge Nederland Nv Magnet assembly for support of a rotor
JP2005083548A (ja) * 2003-09-11 2005-03-31 Koyo Seiko Co Ltd ころ軸受装置
NO322779B1 (no) * 2004-08-25 2006-12-11 Norpropeller As Lager med permanentmagnetiske elementer
CN201206598Y (zh) * 2008-04-17 2009-03-11 王誉燕 一种垂直轴枢接旋转系统的磁悬浮装置
WO2009100443A2 (en) * 2008-02-10 2009-08-13 Empire Magnetics Inc. Axial gap electric dynamo machine with magnetic bearing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233950A (en) * 1961-05-30 1966-02-08 Baermann Max Permanent magnetic bearing
GB2066380A (en) * 1979-12-19 1981-07-08 Ultra Centrifuge Nederland Nv Magnet assembly for support of a rotor
JP2005083548A (ja) * 2003-09-11 2005-03-31 Koyo Seiko Co Ltd ころ軸受装置
NO322779B1 (no) * 2004-08-25 2006-12-11 Norpropeller As Lager med permanentmagnetiske elementer
WO2009100443A2 (en) * 2008-02-10 2009-08-13 Empire Magnetics Inc. Axial gap electric dynamo machine with magnetic bearing
WO2009100443A3 (en) * 2008-02-10 2009-10-08 Empire Magnetics Inc. Axial gap electric dynamo machine with magnetic bearing
CN201206598Y (zh) * 2008-04-17 2009-03-11 王誉燕 一种垂直轴枢接旋转系统的磁悬浮装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108518422A (zh) * 2018-04-13 2018-09-11 无锡民联汽车零部件有限公司 基于电磁感应测转速的汽车轴承
CN110630634A (zh) * 2019-10-03 2019-12-31 张耕乾 一种摩擦小不易变形的轴承
CN111237339A (zh) * 2020-01-14 2020-06-05 燕山大学 一种减少齿轮泵平衡径向力的磁性滚动轴承及寿命计算方法

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Application publication date: 20140312