CN201687859U - 一种内圈挡边面为球面的圆锥滚子轴承 - Google Patents

一种内圈挡边面为球面的圆锥滚子轴承 Download PDF

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CN201687859U
CN201687859U CN2010202031514U CN201020203151U CN201687859U CN 201687859 U CN201687859 U CN 201687859U CN 2010202031514 U CN2010202031514 U CN 2010202031514U CN 201020203151 U CN201020203151 U CN 201020203151U CN 201687859 U CN201687859 U CN 201687859U
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face
inner ring
tapered roller
sphere
bearing
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蔡秉华
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Fujian Yongan Bearing Co Ltd
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Fujian Yongan Bearing Co Ltd
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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
    • F16C19/34—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 for both radial and axial load
    • F16C19/36—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 for both radial and axial load with a single row of rollers
    • F16C19/364—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 for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C19/225—Details of the ribs supporting the end of the rollers
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
    • 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
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • F16C33/366—Tapered rollers, i.e. rollers generally shaped as truncated cones
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers

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

Abstract

本实用新型公开了一种内圈挡边面为球面的圆锥滚子轴承，包括设有挡边面的内圈、外圈、大端面为球形的圆锥滚子和保持架；其特征在于：挡边面的内侧面为凹形球面，凹形球面的球半径大于滚子大端面的球半径，滚子大端面与挡边面间以点接触靠接。由于这种特征，轴承内圈挡边部位的润滑条件好，容易形成润滑油膜，没有边缘应力点，不存在边缘应力峰值，轴承在大轴向载荷工况下工作时，滚子端面和内圈挡边面的温升比较低，磨损量比较小，轴承的使用寿命比较高。

Description

一种内圈挡边面为球面的圆锥滚子轴承
技术领域
本实用新型涉及轴承技术领域，尤其涉及一种内圈挡边面为球面的圆锥滚子轴承。
背景技术
现有技术的圆锥滚子轴承的结构，如图1、图2所示，包括内圈2、外圈1、圆锥滚子3和保持架4。轴承运转时，滚子与内、外圈滚道之间为纯滚动，滚子端面与内圈挡边面之间为滑动。滚子端面与内圈挡边的接触形态，不仅对润滑条件、接触应力有直接影响，而且对轴承使用寿命有较大影响。
现有圆锥滚子轴承的圆锥滚子3端面为球面形，球面的球心O设置在轴承内圈2小端面一侧的轴线上，内圈2挡边面为锥面形，锥形面与轴承内圈2大端面夹角为a，其接触形态为圆锥滚子3端面的外球面与内圈2挡边面的内圆锥面之间的圆弧形线接触。
采用这样技术的圆锥滚子轴承当然可以正常使用，但由于该接触形态为线接触，其缺点是：接触圆弧线地段的润滑条件差，接触圆弧线的两个端点是边缘应力点，会产生边缘应力峰值，应力峰值比圆弧线中部的应力大得多，轴承在大轴向载荷工况下工作时，滚子端面和内圈挡边面的温升比较高，磨损量比较大，轴承的使用寿命比较低。
实用新型内容
为克服现有技术的不足，本实用新型提供一种滚子端面与内圈挡边面的接触形态为大小球面之间的点接触，轴承的使用寿命比较高的圆锥滚子轴承。
本实用新型为达到上述技术目的所采用的技术方案是：一种内圈挡边面为球面的圆锥滚子轴承，包括设有挡边面的内圈、外圈、大端面为球形的圆锥滚子和保持架；其特征在于：挡边面的内侧面为凹形球面，凹形球面的球半径大于滚子大端面的球半径，滚子大端面与挡边面间以点接触靠接。
所述的凹形球面的球心设置在轴承内圈小端面一侧的轴线上。
所述的滚子的球形端面的球心位置，设置在滚子大端面与挡边面的接触点和凹形球面球心的连线上。
本实用新型的有益效果是：由于滚子大端面与挡边面的接触形态为半径小的凸形球面与半径大的凹形球面间的点接触，润滑条件好，容易形成润滑油膜，没有边缘应力点，不存在边缘应力峰值，轴承在大轴向载荷工况下工作时，滚子端面和内圈挡边面的温升比较低，磨损量比较小，轴承的使用寿命比较高。此外，由于滚子端面和内圈挡边面的磨损量比较小，轴承的预紧损失也就比较小，轴承所连接的传动轴上的齿轮就能够持续处于良好的啮合状态，可以延长齿轮的使用寿命。
附图说明
下面结合附图和实施例对本实用新型作进一步说明。其中：
图1是圆锥滚子轴承结构的整体示意图；
图2是现有技术中圆锥滚子轴承中圆锥滚子与内圈挡边部分示意图；
图3是本实用新型实施例中圆锥滚子与内圈挡边部分示意图。
具体实施方式
本实用新型的实施例，如图1、图3所示，一种内圈挡边面为球面的圆锥滚子轴承，包括设有挡边面的内圈2、外圈1、大端面为球形的圆锥滚子3和保持架4；挡边面的内侧面为凹形球面，凹形球面的球半径R1大于圆锥滚子3大端面的球半径R2，滚子大端面与挡边面间以小半径凸球面与大半径凹球面靠接的形式点接触靠接。
所述的凹形球面的球心P设置在轴承内圈2小端面一侧的轴线上。
所述的圆锥滚子3的球形端面的球心Q设置在圆锥滚子3大端面与内圈2挡边面的接触点和凹形球面球心P的连线上。

Claims (3)

1.一种内圈挡边面为球面的圆锥滚子轴承，包括设有挡边面的内圈、外圈、大端面为球形的圆锥滚子和保持架；其特征在于：挡边面的内侧面为凹形球面，凹形球面的球半径大于滚子大端面的球半径，滚子大端面与挡边面间以点接触靠接。
2.根据权利要求1所述的一种内圈挡边面为球面的圆锥滚子轴承，其特征在于：所述的凹形球面的球心设置在轴承内圈小端面一侧的轴线上。
3.根据权利要求1或2所述的一种内圈挡边面为球面的圆锥滚子轴承，其特征在于：所述的滚子的球形端面的球心位置，设置在滚子大端面与挡边面的接触点和凹形球面球心的连线上。 
CN2010202031514U 2010-05-19 2010-05-19 一种内圈挡边面为球面的圆锥滚子轴承 Expired - Fee Related CN201687859U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852969A (zh) * 2012-09-28 2013-01-02 福建省永安轴承有限责任公司 滚子球基面接触在内圈挡边球面中部的圆锥滚子轴承设计方法
CN103032469A (zh) * 2012-12-14 2013-04-10 瓦房店轴承集团有限责任公司 球基面曲率变异圆锥滚子
CN104712657A (zh) * 2013-12-16 2015-06-17 株式会社捷太格特 圆锥滚子轴承及动力传递装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852969A (zh) * 2012-09-28 2013-01-02 福建省永安轴承有限责任公司 滚子球基面接触在内圈挡边球面中部的圆锥滚子轴承设计方法
CN102852969B (zh) * 2012-09-28 2014-12-03 福建省永安轴承有限责任公司 滚子球基面接触在内圈挡边球面中部的圆锥滚子轴承设计方法
CN103032469A (zh) * 2012-12-14 2013-04-10 瓦房店轴承集团有限责任公司 球基面曲率变异圆锥滚子
CN103032469B (zh) * 2012-12-14 2015-09-09 瓦房店轴承集团有限责任公司 球基面曲率变异圆锥滚子
CN104712657A (zh) * 2013-12-16 2015-06-17 株式会社捷太格特 圆锥滚子轴承及动力传递装置
CN104712657B (zh) * 2013-12-16 2019-01-18 株式会社捷太格特 圆锥滚子轴承及动力传递装置

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Granted publication date: 20101229

Termination date: 20130519