CN201121657Y - 一种回转轴承 - Google Patents

一种回转轴承 Download PDF

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Publication number
CN201121657Y
CN201121657Y CNU2007200405658U CN200720040565U CN201121657Y CN 201121657 Y CN201121657 Y CN 201121657Y CN U2007200405658 U CNU2007200405658 U CN U2007200405658U CN 200720040565 U CN200720040565 U CN 200720040565U CN 201121657 Y CN201121657 Y CN 201121657Y
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inner ring
outer ring
ring
steel balls
floating bearing
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Expired - Fee Related
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CNU2007200405658U
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English (en)
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臧立显
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Wuxi Lida Gear Manufacturing Co Ltd
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Wuxi Lida Gear Manufacturing Co Ltd
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Priority to CNU2007200405658U priority Critical patent/CN201121657Y/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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/3706—Loose spacing bodies with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • 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
    • F16C33/7896—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members with two or more discrete sealings arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/57—Seals
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本实用新型公开一种回转轴承。具体说是一种大型回转轴承，适用于风力发电机及其它工况条件比较恶劣的野外工作设备上。它含有内圈、外圈和钢球，内圈的外圆周向和外圈的内圆周向均有弧形凹槽，该两弧形凹槽相对应，所说钢球置于两弧形槽内，且内圈与外圈的两端间呈密封状活动配合。其特点是相邻两个钢球间有隔离块，该隔离块为铜质隔离块，其与钢球相邻的两个面均为凹形球面，凹形球面与钢球间呈滑动配合。其中，内圈与外圈的两端间均借助多道密封圈相密封。这种回转轴承，维修率和维修费用都较低，使用寿命较长。

Description

一种回转轴承
技术领域
本实用新型涉及一种轴承。具体说是一种大型回转轴承，适用于风力发电机及其它工况条件比较恶劣的野外工作设备上。
背景技术
目前，在风力发电机及其它工况条件比较恶劣的野外工作设备上，所用回转轴承都是传统的回转轴承。这种传统回转轴承由内圈、外圈和若干钢球及保持架组成，内圈的外圆周向和外圈的内圆周向均有弧形凹槽，该两弧形凹槽相对应。其中的保持架为圆形整体式铁质结构，若干钢球一一对应地安装在保持架上并随保持架一起安装在内、外圈之间的弧形凹槽内。为防止润滑油外泄和灰尘、水气的侵入，在内、外圈的两端间均安装有一道密封圈。由于保持架为圆形整体式铁质结构，一旦损坏，就需更换整个保持架，维修费用较高。又由于所说保持架为铁质结构，强度不高、不耐磨，容易损坏，一旦损坏，就需更换、维修，维修率较高。另外，由于内、外圈两端间的密封均采用一道密封圈，一旦磨损，灰尘、水气就易进入内外圈之间，从而降低回转轴承的使用寿命。
实用新型内容
本实用新型要解决的问题是提供一种回转轴承。这种回转轴承，维修率和维修费用都较低，使用寿命较长。
为解决上述问题，采取以下技术方案：
本实用新型的回转轴承含有内圈、外圈和钢球，内圈的外圆周向和外圈的内圆周向均有弧形凹槽，该两弧形凹槽相对应，所说钢球置于两弧形槽内，且内圈与外圈的两端间呈密封状活动配合。其特点是相邻两个钢球间有隔离块，该隔离块为铜质隔离块，其与钢球相邻的两个面均为凹形球面，凹形球面与钢球间呈滑动配合。
其中，内圈与外圈的两端间均借助多道密封圈相密封。
采取上述方案，具有以下优点：
由于本实用新型的回转轴承在其相邻两个钢球间设置有隔离块，利用多个隔离块代替传统的整体式保持架来实现钢球的定位。当出现有隔离块损坏时，只需更换相应的那个隔离块即可，与传统需要更换整个保持架相比，可大大降低维修费用。又由于所用隔离块为铜质隔离块，强度高、耐磨，不易损坏，维修率较低。另外，由于内圈与外圈的两端间均采用多道密封圈进行密封，即使有一道密封圈损坏，也不影响密封效果，灰尘、水气仍然无法进入内外圈之间，从而可延长回转轴承的使用寿命。
附图说明
图1是本实用新型的回转轴承结构示意图；
图2是图1的I点放大示意图；
图3是图1的A-A剖视示意图。
具体实施方式
如图1、图2和图3所示，本实用新型的回转轴承含有内圈1、外圈2、多个钢球3和多个隔离块4，内圈1的外圆周向和外圈2的内圆周向均加工有弧形凹槽，该两弧形凹槽相对应，多个钢球3和多个隔离块4均置于两弧形槽内，且钢球3与隔离块4间呈交替状布置。每个隔离块4与钢球3相邻的两个面上均加工成凹形球面，该两凹形球面均与相应钢球3间呈滑动配合。所说隔离块4为铜质隔离块，其强度较高、耐磨，不易损坏，可减少维修费用。
内圈1与外圈2的两端间均设置有两道密封圈6，其安装方式是在内圈1的一端外圆周向和与内圈1另一端相对的外圈2一端外圆周向分别加工两个周向凹槽，每个周向凹槽内均嵌有密封圈6，该密封圈凸出在相应周向凹槽之外。其中，在内圈1和外圈2的一个密封圈6外侧周向还加工有楔形槽5，从而在内圈1与外圈2的一端间实现了三道密封。这样一来，即使有一道或两道密封圈6损坏，也不影响密封效果。

Claims (5)

1. 一种回转轴承，包括内圈(1)、外圈(2)和钢球(3)，内圈(1)的外圆周向和外圈(2)的内圆周向均有弧形凹槽，该两弧形凹槽相对应，所说钢球(3)置于两弧形槽内，且内圈(1)与外圈(2)的两端间呈密封状活动配合；其特征在于相邻两个钢球(3)间有隔离块(4)，该隔离块与钢球(3)相邻的两个面均为凹形球面，凹形球面与钢球(3)间呈滑动配合。
2. 根据权利要求1所述的回转轴承，其特征在于内圈(1)与外圈(2)的两端间均借助多道密封圈(6)相密封。
3. 根据权利要求1所述的回转轴承，其特征在于内圈(1)与外圈(2)的两端间均有两道密封圈(6)，其安装方式是在内圈(1)的一端外圆周向和与内圈(1)另一端相对的外圈(2)一端外圆周向分别加工两个周向凹槽，每个周向凹槽内均嵌有密封圈(6)，该密封圈凸出在相应周向凹槽之外。
4. 根据权利要求3所述的回转轴承，其特征在于在内圈(1)和外圈(2)的一个密封圈(6)外侧周向还加工有楔形槽(5)，从而在内圈(1)与外圈(2)的一端间形成三道密封。
5. 根据权利要求1～4中任一权利要求所述的回转轴承，其特征在于所说隔离块(4)为铜质隔离块。
CNU2007200405658U 2007-07-07 2007-07-07 一种回转轴承 Expired - Fee Related CN201121657Y (zh)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720766A (zh) * 2012-07-02 2012-10-10 北京京冶轧机轴承制造有限公司 一种转盘轴承
CN103185066A (zh) * 2012-12-11 2013-07-03 邯郸鸿力轴承有限公司 一种双重密封的转盘轴承
EP2535577A4 (en) * 2010-02-12 2013-07-24 Mitsubishi Heavy Ind Ltd ELECTRICAL WIND GENERATION DEVICE
CN103303608A (zh) * 2013-06-28 2013-09-18 河南鸿宇工业装备工程有限公司 煤仓清堵机密封装置
CN105751675A (zh) * 2016-03-08 2016-07-13 苏州瑞日纺织科技有限公司 一种圆网印花机的支架装置
CN113586600A (zh) * 2021-07-23 2021-11-02 江苏大学 一种新型双层防尘防泄漏密封的转盘轴承

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535577A4 (en) * 2010-02-12 2013-07-24 Mitsubishi Heavy Ind Ltd ELECTRICAL WIND GENERATION DEVICE
CN102720766A (zh) * 2012-07-02 2012-10-10 北京京冶轧机轴承制造有限公司 一种转盘轴承
CN103185066A (zh) * 2012-12-11 2013-07-03 邯郸鸿力轴承有限公司 一种双重密封的转盘轴承
CN103303608A (zh) * 2013-06-28 2013-09-18 河南鸿宇工业装备工程有限公司 煤仓清堵机密封装置
CN103303608B (zh) * 2013-06-28 2015-05-20 河南鸿宇工业装备工程有限公司 煤仓清堵机密封装置
CN105751675A (zh) * 2016-03-08 2016-07-13 苏州瑞日纺织科技有限公司 一种圆网印花机的支架装置
CN113586600A (zh) * 2021-07-23 2021-11-02 江苏大学 一种新型双层防尘防泄漏密封的转盘轴承
CN113586600B (zh) * 2021-07-23 2022-07-22 江苏大学 一种新型双层防尘防泄漏密封的转盘轴承

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