CN1168717A - 具有曲线滚柱和滚道的滚柱轴承 - Google Patents

具有曲线滚柱和滚道的滚柱轴承 Download PDF

Info

Publication number
CN1168717A
CN1168717A CN95196576A CN95196576A CN1168717A CN 1168717 A CN1168717 A CN 1168717A CN 95196576 A CN95196576 A CN 95196576A CN 95196576 A CN95196576 A CN 95196576A CN 1168717 A CN1168717 A CN 1168717A
Authority
CN
China
Prior art keywords
roller
bearing
raceway
curvature
radius
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
CN95196576A
Other languages
English (en)
Inventor
芒努斯·凯尔斯特伦
彼得·阿奎斯特
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.)
SKF AB
Original Assignee
SKF AB
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.)
Filing date
Publication date
Application filed by SKF AB filed Critical SKF AB
Publication of CN1168717A publication Critical patent/CN1168717A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/34Rollers; Needles
    • F16C33/36Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/24Bearings 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 radial load mainly
    • F16C19/26Bearings 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 radial load mainly with a single row of rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/34Bearings 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
    • F16C19/36Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06Ball or roller bearings
    • F16C23/08Ball or roller bearings self-adjusting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40Linear dimensions, e.g. length, radius, thickness, gap

Landscapes

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

Abstract

滚柱轴承包括一些装在两个滚道(3,5)之间并与之接触的滚柱(6),滚柱和滚道具有曲率半径(R)基本相同的纵向剖面外形,曲率半径(R)大于外滚道和轴承中心线之间垂直滚道进行测量的距离,滚柱(6)在滚道之间从滚道的轴向极限处可无阻碍地轴向移动,以便允许滚道的相对偏转和轴向位移,滚道只由滚道之间滚柱的径向挤压所限制,其中,滚柱形状的曲率半径(R)和滚柱的长度(la)之间的关系为R/la<20。

Description

具有曲线滚柱和滚道的滚柱轴承
本发明涉及在权利要求前序部分所定义的滚柱轴承。
这种轴承为大家所熟知,在文献US-A-2595121中提出了带有凹面滚柱的轴承,在文献SE-A-53256中描述了具有凸面滚柱的轴承。由于在这种轴承中,座圈滚道和滚柱的曲面形状半径基本上大于其相应的半径,例如大于球面滚柱轴承所对应的半径,就有可能制成长度大于在球面滚柱轴承中的滚柱,这就改善了轴承的径向负荷能力。此外,根据序言中所定义的这种轴承,与相同轴向宽度、即等长的滚柱的球面轴承比较,其摩擦力比较小。其缺点是,当装有共同凸缘和保持架时,这种轴承缺少球面轴承的自对准能力,而这种能力在许多情况下是很有价值的。再有,一直在考虑有必要在其中的一个座圈上加工一个滚柱安装开口,如在文献SE-A-53256中用标号8示出的,以便将所需数量的滚柱塞入到轴承中。由于开口可不处在轴承的负荷部分中,则这种开口意味着复杂并且其用途减少。如果在上述定义的这种类型的轴承中,例如,在上述美国专利的图8中没有安装开口,有必要使得具有滚柱的轴承当其外座圈和内座圈处在偏心的位置时,能够允许将相对少量的滚柱塞入到轴承中。因此,这种轴承的负荷能力相对来说要低些。
在文献EP-A-0175858中所描述的是一种滚柱轴承,其滚柱和座圈滚道纵剖面相应曲线外形的曲率半径基本上大于轴承中心线和滚道表面之间的最大距离,在座圈滚道之间滚柱可以在其附近作轴向移动而不会遭到凸缘或类似物的阻碍,对于滚道而言作相对的倾斜和轴向偏移。这些技术特性对于负荷能力和可调节性给出很好的效果,如上所述,滚柱加长了长度并同时增加了负荷能力。当然,其本身也已证实,非常平直的滚柱、即滚柱外形的曲率半径和滚柱长度之间的比值很大的轴承的工作寿命要短些,这是因为较高的周边压力,即作用在滚柱端部的高压应力所致,这意味着具有很高负荷能力的这种轴承将不可接受地在偏移时降低其工作寿命。
本发明的目的是提供一种在权利要求前序部分所定义的滚柱轴承,其中已获得下列标准的可能的最佳综合:改善径向负荷能力,轴承座圈滚道之间相互偏移和轴向移位,及较长的轴承工作寿命。该轴承具有在相应权利要求中所定义的技术特性。
以下,本发明将参照两个实例进行描述,并以相应的附图予以说明。
图1是本发明滚柱轴承的轴向剖视图;
图2是图1轴承的滚柱,并示出负荷和力作用线;
图3示出本发明的角接触滚柱轴承的轴向剖面的一半。
图1给出轴承1的断面图,包括具有外滚道3的内座圈2和具有内滚道5的外座圈4。在滚道3和5之间装有若干滚柱6。内座圈2固定地连接在轴7上,该轴只给出它的位置而不给出细节,由于轴和作用到轴承上负载方向的偏移,该轴相对于轴承的中心线8偏转一个角度γ。座圈2和4因此也将产生一个互相偏转角γ,滚柱6就可能在其附近作轴向移动以补偿这一偏转。滚柱6、以及滚道3和5分别具有其曲率半径R大于轴承中心线和滚道表面之间最大距离的纵向剖面外形。滚道表面平滑的曲率允许对于一给定滚柱的长度,轴承的径向延伸很少,以节省空间;由于在滚柱和滚道之间的滑动接触,与球面滚柱轴承在相应的负荷能力和受到相应的负荷情况下相比较,出现在轴承中的内摩擦是很小的。
图2所示的是图1轴承的滚柱6,其纵向剖面形状的曲率半径为R。在图1中的偏转情况下,负载Q以角度作用在滚柱上,由于在偏转时滚柱作轴向滑动这一事实,所产生的摩擦力必须被滚柱的垂直力所平衡。
当在这种轴承中负载Q作用到滚柱上时,由于内座圈和外座圈以相对于垂直滚柱轴线的滚柱中心线9的角度相互接触,可以求得径向力和轴向力分量。
由滚道作用到滚柱上的轴向力为QSin,此处被考虑为小角度的情况下,该轴向力可以简化为Q。由于滚柱受到来自两个滚道的合成轴向力,它可以表示为2Q。根据平衡方程式,滚柱在轴向上取得平衡
2Q=μQ(方程I)式中μ=滚柱6和其滚道之间的摩擦系数。这一摩擦系数按经验来定,依其润滑条件介于0.05和0.1之间。
图中的力作用线被画成相互相对的,尽管在实际上它们在轴向上相互之间存在一个小的位移。
作用在滚柱上力的轴向位移可以表示为Δ,它是滚柱在其中间处垂直于滚柱中心轴的中线与负载Q作用在滚柱上该作用点之间的距离。这一条件的几何关系为
=Δ/R(方程II)
将方程I简化后得
=μ/2(方程III)
将方程III代入到方程II中得
Δ=μR/2(方程IV)
同时已证明,Δ必须小于滚柱长度的一半,即la/2。
于是有
μR/2<la/2(方程V)
从这一关系式中可以得出
R/la<1/μ(方程VI)
在上述μ取最小值的情况下,μ大约取0.05的值,该值是用经验的方法来求取的,可对滚柱的曲率半径R和滚柱的长度la之间的关系、即R/la求得极限值,它应小于20。超过这一值,该轴承将不能很好地运行,因为在偏转时将出现极大的周边压力,导致工作寿命缩短,由此,关系式必须为
R/la<20(方程VII)
图3中表示的是角接触滚柱轴承上半部的轴向剖视图,该轴承具有向轴承中心线18倾斜的有曲面滚道的内座圈12和向轴承中心线18倾斜的有曲面滚道的外座圈14。在座圈12、14中的滚道之间安装有中间凸起的滚柱6,它不会由凸缘或保持架阻碍而不能轴向移动,并且像滚道一样,滚柱也有其曲率半径R大于外滚道和轴承中心线之间垂直滚道进行测量的最大距离的纵向剖面外形。
如在图2中所示的相同的力作用在这种轴承中的滚柱上,在这种情况下,相同的关系存在于纵向剖面外形的曲率半径和滚柱长度之间。
本发明不限于所示和所描述的有关实例,在相应的权利要求范围内可以有若干变化和改型。

Claims (1)

  1. 滚柱轴承,包括一些装在两个座圈滚道(3,5)之间并与之接触的滚柱(6),滚柱和滚道具有曲率半径(R)基本上相同的纵向剖面外形,其曲率半径(R)大于外滚道和轴承中心线之间垂直滚道进行测量的最大距离,滚柱(6)在滚道之间从滚道的轴向极限处可以无阻碍地进行轴向移动,以便允许滚道的相对偏转和轴向位移,滚道只由在滚道之间滚柱的径向挤压所限制,
    其特征在于:
    滚柱形状的曲率半径(R)和滚柱的长度(la)之间的关系为R/la<20。
CN95196576A 1994-12-02 1995-11-30 具有曲线滚柱和滚道的滚柱轴承 Pending CN1168717A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9404217-3 1994-12-02
SE9404217A SE9404217L (sv) 1994-12-02 1994-12-02 Rullager

Publications (1)

Publication Number Publication Date
CN1168717A true CN1168717A (zh) 1997-12-24

Family

ID=20396224

Family Applications (1)

Application Number Title Priority Date Filing Date
CN95196576A Pending CN1168717A (zh) 1994-12-02 1995-11-30 具有曲线滚柱和滚道的滚柱轴承

Country Status (7)

Country Link
JP (1) JPH10500199A (zh)
CN (1) CN1168717A (zh)
AR (1) AR000273A1 (zh)
AU (1) AU4191796A (zh)
SE (1) SE9404217L (zh)
WO (1) WO1996017179A1 (zh)
ZA (1) ZA9510055B (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100422586C (zh) * 2004-02-19 2008-10-01 株式会社捷太格特 圆锥滚子轴承
CN103807301A (zh) * 2013-12-27 2014-05-21 瓦房店轴承集团有限责任公司 特殊修型结构的轴承
CN104254698A (zh) * 2012-04-23 2014-12-31 Skf公司 轴承装置
CN104271971A (zh) * 2012-04-23 2015-01-07 Skf公司 环形的滚子轴承
CN105605096A (zh) * 2014-11-13 2016-05-25 斯凯孚公司 角接触自对准圆环滚动元件轴承
CN115163666A (zh) * 2022-05-09 2022-10-11 中国船舶重工集团公司第七一九研究所 用于船舶推进轴系的艉轴承、船舶推进系统及船舶

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612589B4 (de) * 1996-03-29 2005-12-22 Skf Gmbh Lagerung
US6315458B1 (en) 1998-06-19 2001-11-13 Nsk Ltd. Roller bearing
US6354745B1 (en) 1999-09-16 2002-03-12 The Timken Company Fully self-aligning roller bearing
JP2002310164A (ja) 2001-04-12 2002-10-23 Nsk Ltd 円すいころ軸受
DE102005058149A1 (de) * 2005-12-06 2007-07-05 Schaeffler Kg Schrägrollenlager mit gekrümmten Laufbahnen
US10023302B2 (en) 2007-12-06 2018-07-17 Roller Bearing Company Of America, Inc. Actuation system for a lift assisting device and lined track rollers used therein
US9261132B2 (en) 2009-04-24 2016-02-16 Roller Bearing Company Of America, Inc. Low friction bearing assembly and link apparatus
CZ2010883A3 (cs) * 2010-12-01 2012-01-25 ZKL - Výzkum a vývoj, a.s. Uložení výstupního hrídele pro pohon velkoobjemových otácivých nádrží s naklonenou osou rotace
EP2844886B1 (en) 2012-04-30 2018-11-07 Roller Bearing Company of America, Inc. Hybrid bearing assembly with rolling elements and plain bearing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE449908B (sv) * 1984-09-26 1987-05-25 Skf Ab Rullager der rullarna och lopbanorna har krokta lengdsnittsprofiler
DE3904456A1 (de) * 1989-02-15 1990-08-16 Werner Jacob Gelenklager

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100422586C (zh) * 2004-02-19 2008-10-01 株式会社捷太格特 圆锥滚子轴承
CN104254698A (zh) * 2012-04-23 2014-12-31 Skf公司 轴承装置
CN104271971A (zh) * 2012-04-23 2015-01-07 Skf公司 环形的滚子轴承
CN103807301A (zh) * 2013-12-27 2014-05-21 瓦房店轴承集团有限责任公司 特殊修型结构的轴承
CN105605096A (zh) * 2014-11-13 2016-05-25 斯凯孚公司 角接触自对准圆环滚动元件轴承
CN105605096B (zh) * 2014-11-13 2020-04-17 斯凯孚公司 角接触自对准圆环滚动元件轴承
CN115163666A (zh) * 2022-05-09 2022-10-11 中国船舶重工集团公司第七一九研究所 用于船舶推进轴系的艉轴承、船舶推进系统及船舶

Also Published As

Publication number Publication date
SE9404217D0 (sv) 1994-12-02
AR000273A1 (es) 1997-06-18
ZA9510055B (en) 1996-06-06
AU4191796A (en) 1996-06-19
JPH10500199A (ja) 1998-01-06
SE9404217L (sv) 1996-06-03
WO1996017179A1 (en) 1996-06-06

Similar Documents

Publication Publication Date Title
CN1168717A (zh) 具有曲线滚柱和滚道的滚柱轴承
JPS6182018A (ja) ラジアルころ軸受
CN1153910C (zh) 滚珠套筒
US6601828B2 (en) Elevator hoist machine and related assembly method
EP0836023B1 (en) Tri-pod constant velocity universal joint
US4592735A (en) Arrangement of two elements which undergo alternating relative motion and its application of slidable homokinetic joints
US5357868A (en) Trolley apparatus with reinforced plastic wheels and interlocking plastic bushings
JPH08296653A (ja) 保持器付自動調心ころ軸受
KR101340265B1 (ko) 레이디얼 구름 베어링, 특히 단열 구형 롤러 베어링
CN1145661A (zh) 推力轴承组件
US6702502B1 (en) Ball-and-socket joint
US4746232A (en) Low friction cross roller bearing
US5310269A (en) Roller bearings
US5935009A (en) Tripod constant velocity universal joint
CN102326007A (zh) 具有改进的组装特性的等速枢转接头
RU2410580C2 (ru) Опорный подшипник скольжения тягового двигателя железнодорожного локомотива (варианты)
US10190624B2 (en) Spacer device, toroidal roller bearing and method
US4714358A (en) Cage for lipless roller bearings
CN1009347B (zh) 特别适于高速轧机工作轧辊用的滚动轴承
NL1006230C2 (nl) Axiaal belastbare lagering.
CN1088807C (zh) 带有使滚柱轴承具有一正斜交角的装置的滚柱轴承
US20210254666A1 (en) Axial rolling bearing
CA2179478C (en) Modular retainer assembly
US20110255820A1 (en) Roller bearing
US5417502A (en) Cage for full-type roller bearings

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication