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WO2012031871A1 - Roulement à rouleaux muni de corps à rouleaux placés à l'oblique et d'une compensation de la dilatation thermique - Google Patents

Roulement à rouleaux muni de corps à rouleaux placés à l'oblique et d'une compensation de la dilatation thermique Download PDF

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Publication number
WO2012031871A1
WO2012031871A1 PCT/EP2011/064276 EP2011064276W WO2012031871A1 WO 2012031871 A1 WO2012031871 A1 WO 2012031871A1 EP 2011064276 W EP2011064276 W EP 2011064276W WO 2012031871 A1 WO2012031871 A1 WO 2012031871A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
ring
rolling bearing
shaft
bearing
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.)
Ceased
Application number
PCT/EP2011/064276
Other languages
German (de)
English (en)
Inventor
Bruno Scherb
Armin Necker
Aman Zulhilmi Abu Bakar
Bodo Hahn
Stephan Hofmeister
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2012031871A1 publication Critical patent/WO2012031871A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • 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
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • 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
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F16C19/547—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings
    • F16C19/548—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings in O-arrangement
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/20—Thermal properties
    • F16C2202/22—Coefficient of expansion

Definitions

  • the invention relates to a rolling bearing for supporting a shaft in a housing, with at least one inner ring, an outer ring and arranged between these bearing rings obliquely staffed rolling elements, and with a clamping means which for generating an axial bias in the rolling bearing an axial force on at least one of Inner rings can exert, wherein the material of the housing on the one hand and the material of the shaft and the bearing rings on the other hand have different thermal expansion coefficients.
  • This bearing allows compensation of temperature-induced changes in length.
  • the support ring or pressure ring is formed as a membrane body with a hermetically enclosed therein expansion medium.
  • DE 38 10 448 C2 discloses a similar compensation device for a single-row tapered roller bearing designed roller bearing, in which the support ring or pressure ring forms a kind of piston-cylinder assembly, wherein in the cylinder, an expansion medium is arranged.
  • a disadvantage of the known devices is that they each use a liquid or viscous expansion medium, which is stored in a separate trainee cavity of the compensation device. This leads to an increased manufacturing effort.
  • the object of the invention is to present a rolling bearing for supporting a shaft in a housing, in which temperature-induced different changes in length without the use of a fluid expansion. balanced onsmediums. As a result, in particular, the manufacturing costs compared to known devices to be reduced.
  • the invention is based on a roller bearing for supporting a shaft in a housing, with at least one inner ring, an outer ring and arranged between these bearing rings obliquely staffed rolling elements, and with a clamping means which for generating an axial bias in the rolling bearing on an axial force can exert at least one of the inner rings, wherein the material of the housing on the one hand and the material of the shaft and the bearing rings on the other hand have different thermal expansion coefficients.
  • the outer ring is axially supported on an intermediate ring, that the intermediate ring is axially supported on the housing, and that the intermediate ring has the same thermal expansion coefficient as the shaft and / or the bearing rings.
  • the proposed rolling bearing allows structurally very simple compensation of temperature-induced changes in length between a housing and a shaft mounted in the housing, wherein the housing and the shaft have different thermal expansion coefficients.
  • an intermediate ring is used, which is arranged axially between the bearing outer ring and the housing.
  • This intermediate ring is preferably made of the same material as the shaft and / or the bearing rings, so for example made of steel, or its material has at least the same thermal expansion coefficient as the shaft and / or the bearing rings.
  • the fact that the intermediate ring alone is sufficient to compensate for heat-related elongation differences between the housing and the shaft, can deviate from the prior art Save manufacturing costs on a separately accommodated expansion medium.
  • the device according to the invention for the compensation of temperature-induced changes in length between a housing and a shaft mounted in the housing works completely without the use of sensors, electricity or hydraulics, whereby it is to be judged to be particularly robust.
  • the intermediate ring can be supported axially in two alternative embodiments on a radially inwardly projecting radial web of the housing or on a radially partially inserted into an annular groove of the housing retaining ring.
  • the ratio of the lengths of the intermediate ring and the housing is dimensioned so that an adjusted during assembly axial play of the bearing remains largely constant with temperature fluctuations in a predetermined temperature range.
  • the invention can be used for example in a tapered roller bearing or an angular contact ball bearing, in which the rolling elements are designed as tapered rollers or as balls.
  • the rolling bearing may be formed as a single row or multi-row roller bearing.
  • a design as a double-row tapered roller bearing of the radially inwardly projecting radial web of the housing or the locking ring is arranged axially centrally or axially offset between the two rows of rolling elements.
  • the exact position of the radial ridge or circlip between the bearing outer rings is determined depending on the heat input into the housing.
  • the intermediate ring is formed in two parts, wherein the radial web or the retaining ring is arranged axially between the two intermediate ring parts.
  • Another variant provides that the intermediate ring bears axially on the mutually facing end faces of the outer rings and is received radially with axial play in a groove of the housing partially, which will be discussed further with reference to an embodiment.
  • the at least one inner ring at its axial ends in each case has a radially outwardly projecting board, and that the at least one outer ring is formed without a bord.
  • the shaft, the bearing rings and the intermediate ring made of steel and the housing are made of an aluminum alloy.
  • Fig. 2 is a representation as in Fig. 1, but with an inserted into a housing groove intermediate ring, and
  • Fig. 3 is a representation as in Fig. 1, but with a two-piece intermediate ring.
  • the tapered roller bearing 1 formed in O-arrangement supports a shaft 2 made of steel in a housing 5 made of an aluminum alloy.
  • the inner ring 6 of a first row of rolling elements 3 is supported on a nem radial shoulder 12 of the shaft 2 axially.
  • the inner ring 6 has an unspecified track for trained as tapered rollers 10, which extends axially between a radially small board 17 and a radially large board 18 on the inner ring 6.
  • the small board 17 is arranged axially inside.
  • the outer ring 8 of the first row of rolling elements 3 is formed without a bord and is supported radially on the housing 5 and axially on a first end face 14 of a radial web 13 of the housing 5. This radial web 13 extends radially inwardly and thus separates the first row of rolling elements 3 from a second row of rolling elements 4.
  • the second row of rolling elements 4 has an inner ring 7, which sits on the shaft 2 and is formed as well as the inner ring 6 of the first row of rolling elements 3. On its career also designed as tapered rollers 10 are arranged. Also in the inner ring 7 of the second row of rolling elements 4, the small board 17 is axially close to the radial web 13 of the housing fifth
  • the outer ring 9 of the second row of rolling elements 4 is likewise designed without a bord and is supported radially on the housing 5 and axially on an end face 16 of an intermediate ring 15.
  • Serving as a compensation element for thermal changes in length intermediate ring 15 rests with its radial circumference on the not further designated inner surface of the housing 5 and supports itself axially on one of the first end face 14 axially opposite second end face 19 of the radial web 13 of the housing 5 from.
  • circlip 21 serve for the axial support of the intermediate ring 15.
  • the inner ring 7 of the second row of rolling elements 4 can be loaded by means of a clamping means with an axial bias, which serves to set a predetermined bearing clearance.
  • the clamping means is formed in this embodiment as a screwed onto a shaft thread 20 nut 1 1, the acts with its axially inner end face on an axially outer end face of the inner ring 7.
  • the effect achieved by the construction is achieved even if only the shaft 2 and the intermediate ring 15 are made of steel with the same or very similar thermal expansion coefficient, and the housing 5 consists of an aluminum alloy.
  • the materials and in particular the axial length of the intermediate ring 15 are selected in a special way.
  • the ratio of the lengths of intermediate ring 15 and housing 5 is dimensioned so that an adjusted during assembly axial clearance of the rolling bearing 1 remains largely constant with temperature fluctuations in a predetermined temperature range.
  • the intermediate ring 15 is inserted into a circumferential groove 23 in the inner circumferential surface of the housing 5 with axial play 22 and received only with a comparatively small radial depth in the circumferential groove 23.
  • the intermediate ring 15 is preferably clamped between the two bearing outer rings 8, 9 in such a way that the intermediate ring 15 does not touch the axial ends of the circumferential groove 23.
  • the intermediate ring 15 is formed in two parts and consists of the two axially arranged one behind the other and from a circlip 21 separate intermediate ring parts 15 'and 15".
  • the retaining ring 21 is radially inserted partially into an annular groove on the inner circumferential surface of the housing 5. Support with a temperature-related expansion
  • the axial length of the two intermediate ring parts 15 ', 15 "and the axial distance of the retaining ring 21 of the two bearing outer rings 8, 9 is dependent on the expected temperature-related changes in length of shaft 2, intermediate ring parts 15 ', 15 ", bearing rings 6,7,8,9, 10 rolling element and shaft 2 determined.

Landscapes

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

Abstract

L'invention concerne un système de roulement à rouleaux (1) pour le positionnement d'un arbre (2) dans un boîtier (5), comportant au moins une bague intérieure (6, 7) et une bague extérieure (8, 9) ainsi que des corps à rouleaux (10) placés à l'oblique entre ces bagues de roulement (6, 8 ; 7, 9), et comportant un moyen de tension (11) qui peut exercer une force axiale sur au moins une des bagues de roulement (6, 8 ; 7, 9) pour produire une précontrainte axiale dans le roulement à rouleaux (1). Le matériau du boîtier (5) d'une part et le matériau de l'arbre (2) et des bagues de roulement (6, 8 ; 7, 9) d'autre part présentent des coefficients de dilatation thermique différents. L'invention vise à assurer une compensation des variations de longueur entre le boîtier (5) et l'arbre (2) liées à la température. A cette fin, selon l'invention, la bague extérieure (8, 9) prend appui axialement sur une bague intermédiaire (15), la bague intermédiaire (15) prend appui axialement sur le boîtier (5) et la bague intermédiaire (15) présente le même coefficent de dilatation thermique que l'arbre (2) et/ou que les bagues de roulement (6, 8 ; 7, 9).
PCT/EP2011/064276 2010-09-11 2011-08-19 Roulement à rouleaux muni de corps à rouleaux placés à l'oblique et d'une compensation de la dilatation thermique Ceased WO2012031871A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010045140.1 2010-09-11
DE102010045140A DE102010045140A1 (de) 2010-09-11 2010-09-11 Wälzlager mit schräg angestellten Wälzkörpern

Publications (1)

Publication Number Publication Date
WO2012031871A1 true WO2012031871A1 (fr) 2012-03-15

Family

ID=44543232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/064276 Ceased WO2012031871A1 (fr) 2010-09-11 2011-08-19 Roulement à rouleaux muni de corps à rouleaux placés à l'oblique et d'une compensation de la dilatation thermique

Country Status (2)

Country Link
DE (1) DE102010045140A1 (fr)
WO (1) WO2012031871A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014058533A1 (fr) * 2012-10-10 2014-04-17 Quality Vision International, Inc. Douille à billes
CN112539220A (zh) * 2019-09-23 2021-03-23 斯凯孚公司 具有带槽滚道和圆柱形滚道的高速轴承
CN116292612A (zh) * 2023-03-23 2023-06-23 中国北方车辆研究所 一种圆锥滚子轴承自适应预紧力补偿机构

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326613A (en) * 1963-08-16 1967-06-20 Fischer Ag Georg Antifriction bearing, especially for journalling spindles
DE3239305A1 (de) 1982-10-23 1984-04-26 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Axiallagerabstuetzung
DE3810448C2 (fr) 1987-04-11 1992-02-20 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen, De
JPH10220468A (ja) * 1997-02-03 1998-08-21 Tochigi Fuji Ind Co Ltd ベアリング保持構造
DE19734998A1 (de) * 1997-08-13 1999-02-18 Skf Gmbh Einrichtung zur Nachstellung des axialen Spiels in Wälzlagern
US6158895A (en) * 1997-12-16 2000-12-12 Toshiba Kikai Kabushiki Kaisha Bearing device for machine tool spindle
JP2002147451A (ja) * 2000-11-16 2002-05-22 Nsk Ltd 複列転がり軸受装置
DE102006053731A1 (de) 2006-11-15 2008-05-21 Schaeffler Kg Vorrichtung mit einem auf Temperaturwechsel reagierenden Kompensationselement
DE102008061042A1 (de) 2008-12-09 2010-06-17 Schaeffler Kg Wärmedehnungsausgleichselement sowie Wälzlager

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326613A (en) * 1963-08-16 1967-06-20 Fischer Ag Georg Antifriction bearing, especially for journalling spindles
DE3239305A1 (de) 1982-10-23 1984-04-26 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Axiallagerabstuetzung
DE3810448C2 (fr) 1987-04-11 1992-02-20 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen, De
JPH10220468A (ja) * 1997-02-03 1998-08-21 Tochigi Fuji Ind Co Ltd ベアリング保持構造
DE19734998A1 (de) * 1997-08-13 1999-02-18 Skf Gmbh Einrichtung zur Nachstellung des axialen Spiels in Wälzlagern
US6158895A (en) * 1997-12-16 2000-12-12 Toshiba Kikai Kabushiki Kaisha Bearing device for machine tool spindle
JP2002147451A (ja) * 2000-11-16 2002-05-22 Nsk Ltd 複列転がり軸受装置
DE102006053731A1 (de) 2006-11-15 2008-05-21 Schaeffler Kg Vorrichtung mit einem auf Temperaturwechsel reagierenden Kompensationselement
DE102008061042A1 (de) 2008-12-09 2010-06-17 Schaeffler Kg Wärmedehnungsausgleichselement sowie Wälzlager

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014058533A1 (fr) * 2012-10-10 2014-04-17 Quality Vision International, Inc. Douille à billes
EP2906843A4 (fr) * 2012-10-10 2016-06-01 Quality Vision Int Inc Douille à billes
CN112539220A (zh) * 2019-09-23 2021-03-23 斯凯孚公司 具有带槽滚道和圆柱形滚道的高速轴承
CN116292612A (zh) * 2023-03-23 2023-06-23 中国北方车辆研究所 一种圆锥滚子轴承自适应预紧力补偿机构

Also Published As

Publication number Publication date
DE102010045140A1 (de) 2012-03-15

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