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CN111457006A - 双密封双列滚针轴承 - Google Patents

双密封双列滚针轴承 Download PDF

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Publication number
CN111457006A
CN111457006A CN202010431766.0A CN202010431766A CN111457006A CN 111457006 A CN111457006 A CN 111457006A CN 202010431766 A CN202010431766 A CN 202010431766A CN 111457006 A CN111457006 A CN 111457006A
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CN
China
Prior art keywords
sealing
double
outer ring
needle roller
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010431766.0A
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English (en)
Inventor
顾小楠
高建
张勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Dongwu Needle Bearing Co ltd
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Suzhou Dongwu Needle Bearing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN202010431766.0A priority Critical patent/CN111457006A/zh
Publication of CN111457006A publication Critical patent/CN111457006A/zh
Pending legal-status Critical Current

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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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/48—Needle bearings with two or more rows of needles
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller bearings
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward

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

Abstract

本发明公开了一种双密封双列滚针轴承，包括外圈、保持架和滚针；所述保持架设置于外圈滚道内；所述滚针设置于外圈和保持架之间；所述外圈两端部均设置有密封槽；所述密封槽内设置有密封条；所述密封圈内设置有弹性骨架；所述保持架上均匀设置有多个双排窗孔，所述滚针设置于窗孔内。外圈上设置双密封槽，与密封圈过盈配合，提高密封性能；在密封圈内增设弹性骨架，提高密封圈的刚性，使得密封圈整体具有良好的弹性形变功能，避免密封圈产生塑性形变，提高轴承密封的可靠性。

Description

双密封双列滚针轴承
技术领域
本发明涉及一种轴承，特别涉及一种双密封双列滚针轴承。
背景技术
新能源汽车空压机上用到一种滚针轴承，要求密封性好不漏脂，安装后不更换，同时使用载荷大，转速高，但受径向尺寸有限制不能通过加大外径尺寸来提高载荷，因此需要开发出适合空压机工况的密封滚针轴承。在径向空间限制下可考虑宽度方向加大尺寸，增加滚针长度实现载荷提高。当滚针细长不利于高速回转的情况下，设置为双列滚针结构，从而达到提高载荷满足使用要求。现有的双列滚针轴承密封圈在长期高压和高载荷的使用过程中容易出现塑性形变，使得轴承密封性下降。
发明内容
本发明解决的技术问题是提供一种双密封双列滚针轴承，密封圈上设置弹性骨架，提高密封圈的刚性，解决密封圈装配过程中可能存在的变形导致密封性能下降，提高密封的可靠性。
本发明解决其技术问题所采用的技术方案是：一种双密封双列滚针轴承，包括外圈、保持架和滚针；所述保持架设置于外圈滚道内；所述滚针设置于外圈和保持架之间；所述外圈两端部均设置有密封槽；所述密封槽内设置有密封条；所述密封圈内设置有弹性骨架。
进一步的是：所述保持架上均匀设置有多个双排窗孔，所述滚针设置于窗孔内。
本发明的有益效果为：外圈上设置双密封槽，与密封圈过盈配合，提高密封性能；在密封圈内增设弹性骨架，提高密封圈的刚性，使得密封圈整体具有良好的弹性形变功能，避免密封圈产生塑性形变，提高轴承密封的可靠性。
附图说明
图1为本发明双密封双列滚针轴承的结构示意图；
图2为保持架双列窗孔结构示意图；
图3为密封圈结构示意图。
图中标记为：100、外圈；200、密封圈；210、弹性骨架；300、保持架；400、滚针。
具体实施方式
为了加深对本发明的理解，下面将结合附图和实施例对本发明做进一步详细描述，该实施例仅用于解释本发明，并不对本发明的保护范围构成限定。
一种双密封双列滚针轴承，包括外圈100、保持架300和滚针400；所述保持架300设置于外圈100滚道内；所述滚针400设置于外圈100和保持架300之间；所述外圈100两端部均设置有密封槽；所述密封槽内设置有密封条200；所述密封圈200内设置有弹性骨架210；所述保持架300上均匀设置有多个双排窗孔，所述滚针400设置于窗孔内。
密封圈200上设置的弹性骨架210可提高密封圈的刚性，解决密封圈装配过程中可能存在的变形导致密封性能下降，同时防止密封圈200在高压、高载荷情况下发生塑性形变影响密封性能；本实例中选用冷轧碳钢薄板材料作为弹性骨架210，具有良好的弹性和抗拉强度。
上述实施例不应以任何方式限制本发明，凡采用等同替换或等效转换的方式获得的技术方案均落在本发明的保护范围内。

Claims (2)

1.一种双密封双列滚针轴承，其特征在于：包括外圈(100)、保持架(300)和滚针(400)；所述保持架(300)设置于外圈(100)滚道内；所述滚针(400)设置于外圈(100)和保持架(300)之间；所述外圈(100)两端部均设置有密封槽；所述密封槽内设置有密封条(200)；所述密封圈(200)内设置有弹性骨架(210)。
2.根据权利要求1所述的一种双密封双列滚针轴承，其特征在于：所述保持架(300)上均匀设置有多个双排窗孔，所述滚针(400)设置于窗孔内。
CN202010431766.0A 2020-05-20 2020-05-20 双密封双列滚针轴承 Pending CN111457006A (zh)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1804417A (zh) * 2006-01-24 2006-07-19 史建伟 多密封汽车轴承
JP2011158031A (ja) * 2010-02-01 2011-08-18 Jtekt Corp 針状ころ軸受
CN203421030U (zh) * 2013-06-21 2014-02-05 常州市大洋轴承制造有限公司 双列滚针轴承
CN204458854U (zh) * 2015-02-09 2015-07-08 温州人本轴承有限公司 一种密封圈及轴承密封结构
CN206175477U (zh) * 2016-11-18 2017-05-17 人本集团有限公司 一种带密封的圆锥滚子轮毂轴承
JP2017137932A (ja) * 2016-02-03 2017-08-10 日本精工株式会社 自動調心ころ軸受
CN207297629U (zh) * 2017-09-14 2018-05-01 无锡市华洋轴承有限公司 一种双面接触式滚针轴承
JP2019060441A (ja) * 2017-09-27 2019-04-18 日本精工株式会社 シール付き玉軸受
CN212131052U (zh) * 2020-05-20 2020-12-11 苏州市东吴滚针轴承有限公司 双密封双列滚针轴承

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1804417A (zh) * 2006-01-24 2006-07-19 史建伟 多密封汽车轴承
JP2011158031A (ja) * 2010-02-01 2011-08-18 Jtekt Corp 針状ころ軸受
CN203421030U (zh) * 2013-06-21 2014-02-05 常州市大洋轴承制造有限公司 双列滚针轴承
CN204458854U (zh) * 2015-02-09 2015-07-08 温州人本轴承有限公司 一种密封圈及轴承密封结构
JP2017137932A (ja) * 2016-02-03 2017-08-10 日本精工株式会社 自動調心ころ軸受
CN206175477U (zh) * 2016-11-18 2017-05-17 人本集团有限公司 一种带密封的圆锥滚子轮毂轴承
CN207297629U (zh) * 2017-09-14 2018-05-01 无锡市华洋轴承有限公司 一种双面接触式滚针轴承
JP2019060441A (ja) * 2017-09-27 2019-04-18 日本精工株式会社 シール付き玉軸受
CN212131052U (zh) * 2020-05-20 2020-12-11 苏州市东吴滚针轴承有限公司 双密封双列滚针轴承

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