DE20306899U1 - Rolling bearing for wind power plant, for example, has segmented flange with run-on face which for each bearing segment in proximity of end faces assumes form of transition profile - Google Patents
Rolling bearing for wind power plant, for example, has segmented flange with run-on face which for each bearing segment in proximity of end faces assumes form of transition profile Download PDFInfo
- Publication number
- DE20306899U1 DE20306899U1 DE20306899U DE20306899U DE20306899U1 DE 20306899 U1 DE20306899 U1 DE 20306899U1 DE 20306899 U DE20306899 U DE 20306899U DE 20306899 U DE20306899 U DE 20306899U DE 20306899 U1 DE20306899 U1 DE 20306899U1
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- end faces
- rolling
- transition profile
- rolling 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.)
- Expired - Lifetime
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
- 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
- F16C19/38—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 two or more rows of rollers
- F16C19/383—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 two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—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 two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—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 two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller 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
- 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
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Die Erfindung betrifft ein Wälzlager mit wenigstens einem Lagerring, der aus mehreren Segmenten zusammengesetzt ist, die in Umfangsrichtung an ihren Endflächen aneinander gereiht sind.The Invention relates to a rolling bearing with at least one bearing ring, which is composed of several segments is, which are lined up in the circumferential direction at their end faces.
Derartige Wälzlager werden beispielsweise eingesetzt, wenn die Lagerstelle sehr schwer zugänglich ist und daher ein geschlossener Lagerring nicht montiert werden kann oder wenn die Lagerabmessungen so groß sind, dass ein Handling der vollständigen Lagerringe kaum noch möglich ist. Letzteres trifft beispielsweise auf die Lager von Windenergieanlagen zu, die typischerweise einen Durchmesser von einigen Metern besitzen können. Häufig werden Wälzlager mit segmentierten Lagerringen auch dann eingesetzt, wenn für einen Austausch eines einteilig ausgebildeten Lagerrings umfangreiche Demontagearbeiten erforderlich wären.such roller bearing are used, for example, when the bearing point is very heavy accessible and therefore a closed bearing ring cannot be installed can or if the bearing dimensions are so large that a handling of the complete Bearing rings hardly possible anymore is. The latter, for example, affects the bearings of wind turbines which are typically a few meters in diameter can. Frequently become rolling bearings with segmented bearing rings also used when for one Replacement of a one-piece bearing ring extensive Disassembly work would be required.
Ein
Wälzlager
mit wenigstens einem segmentierten Lagerring ist beispielsweise
aus der
Die Vorteile, die ein segmentierter Lagerring bei der Montage und Demontage bietet, werden durch eine Beeinträchtigung der Laufbahn erkauft, auf denen die Wälzkörper abrollen. Im Gegensatz zu einem einteiligen Lagerring ist diese Laufbahn nicht endlos ausgebildet, sondern weist in den Übergangsbereichen zweier benachbarter Segmente jeweils eine Trennstelle auf, durch die das Abwälzverhalten der Wälzkörper in der Regel nachteilig beeinflusst wird. In diesem Zusammenhang ist es bereits bekannt, die Laufbahn im Übergangsbereich zu modifizieren.The Advantages of a segmented bearing ring during assembly and disassembly offers are bought by impairing the career, on where the rolling elements roll. In contrast to a one-piece bearing ring, this track is not endless trained, but points in the transition areas of two neighboring Segments each have a separation point through which the rolling behavior of the Rolling elements in is usually adversely affected. In this context it is it is already known to modify the career in the transition area.
So
offenbart die
Weiterhin
ist es aus der
Die
Bei einigen Anwendungen lässt sich mit den bekannten Maßnahmen bereits ein zufriedenstellender Kompromiss zwischen den durch die Segmentierung erlangten Montagevorteilen und den durch die Beeinträchtigung der Laufbahn auftretenden Nachteilen erzielen. Bei einer Reihe von Anwendungen ist die mit segmentierten Wälzlagern bekannter Bauart erzielbare Lebensdauer allerdings nicht ausreichend.at some applications deal with the known measures already a satisfactory compromise between those through the Segmentation gained assembly advantages and those due to the impairment achieve career disadvantages. With a number of Applications is the type that can be achieved with segmented roller bearings of known design However, lifespan is not sufficient.
Der Erfindung liegt die Aufgabe zu Grunde, ein Wälzlager mit wenigstens einem Lagerring, der aus mehreren Segmenten zusammengesetzt ist, so auszubilden, dass sich eine möglichst lange Lebensdauer erreichen lasst.The The invention is based on the object of a rolling bearing with at least one To form a bearing ring, which is composed of several segments, that one if possible long lifespan.
Diese Aufgabe wird durch ein Wälzlager mit der Merkmalskombination des Anspruchs 1 gelöst.This Task is through a rolling bearing solved with the combination of features of claim 1.
Das erfindungsgemäße Wälzlager weist wenigstens einen Lagerring auf, der aus mehreren Segmenten zusammengesetzt ist, die in Umfangsrichtung an ihren Endflächen aneinander gereiht sind. Weiterhin weist das erfindungsgemäße Wälzlager Wälzkörper auf, die auf dem Lagerring abrollen, wobei in wenigstens einem axialen Endbereich des Lagerrings ein entsprechend dem Lagerring segmentierter Flansch ausgebildet ist, der eine Anlauffläche für die Stirnflächen der Wälzkörper aufweist. Die Besonderheit des erfindungsgemäßen Wälzlagers besteht darin, dass die Anlauffläche des Flansches bei jedem Segment in der Nähe der Endflächen jeweils die Form eines Übergangsprofils annimmt, gemäß dem sich die Anlauffläche jeweils mit Annäherung an die Endflächen der Segmente zunehmend von den Stirnflächen der Wälzkörper entfernt.The Rolling bearing according to the invention has at least one bearing ring, which consists of several segments is composed, which in the circumferential direction to each other at their end faces are lined up. Furthermore, the rolling bearing according to the invention has rolling elements on the bearing ring unroll, in at least one axial end region of the bearing ring a flange segmented according to the bearing ring is formed is a contact surface for the end faces of the Has rolling elements. The special feature of the rolling bearing according to the invention is that the contact area of the flange in each segment near the end faces Form of a transition profile assumes according to which the contact area each with approximation to the end faces of the segments increasingly removed from the end faces of the rolling elements.
Die Erfindung hat den Vorteil, dass die Wälzkörper auch in den Übergangsbereichen zwischen benachbarten Segmenten sehr schonend am Flansch anlaufen, so dass der Verschleiß und das Risiko einer Beschädigung in vertretbaren Grenzen gehalten werden können. Dadurch lässt sich die Lebensdauer verglichen mit einem herkömmlichen segmentierten Wälzlager erheblich erhöhen. Es hat sich nämlich gezeigt, dass dem Anlaufen der Wälzkörper am Flansch bei einem segmentierten Wälzlager im Hinblick auf die Lebensdauer des Wälzlagers eine große Bedeutung zukommt. Bislang wurde in dieser Hinsicht lediglich dem Abrollvorgang der Wälzkörper auf der Laufbahn Beachtung geschenkt.The invention has the advantage that the rolling elements also run very gently on the flange in the transition areas between adjacent segments, so that the wear and the risk of damage can be kept within reasonable limits. This enables the service life to be significantly increased compared to a conventional segmented roller bearing. It has been shown that the rolling bodies running against the flange in a segmented rolling bearing are of great importance with regard to the service life of the rolling bearing. So far, in this regard, only the rolling process of the rolling elements paid attention to during your career.
Das Übergangsprofil der Anlauffläche kann jeweils abhängig von fertigungs- und/oder einbaubedingten Toleranzen für den Versatz der Anlauffläche zwischen benachbarten Segmenten vorgegeben werden. Dadurch kann das Übergangsprofil jeweils optimal für den jeweiligen Anwendungsfall ausgebildet werden. Insbesondere kann die Ausprägung des Übergangsprofils auf ein notwendiges Minimum reduziert werden und dadurch ein optimales Anlaufverhalten erzielt werden.The transition profile the contact area can depend on each of manufacturing and / or installation tolerances for the offset of the contact surface between neighboring segments can be specified. This allows the transition profile each optimal for the respective application are trained. In particular, can the expression the transition profile be reduced to a necessary minimum and thereby an optimal one Start-up behavior can be achieved.
Vorzugsweise wird das Übergangsprofil so ausgebildet, dass es sich ausgehend von der Endfläche des Segments in Umfangsrichtung wenigstens über eine Entfernung von 0,2 mm erstreckt. Weiterhin ist es vorteilhaft, wenn sich das Übergangsprofil wenigstens bis in eine Tiefe von 0,05 mm erstreckt. Außerhalb dieser Mindestmaße ist es bei üblichen Anwendungen sehr schwierig, ein zufriedenstellendes Anlaufverhalten der Wälzkörper an den Flansch zu erreichen. Das Übergangsprofil weist in der Regel eine abgerundete Form auf, um den Übergang möglichst sanft zu gestalten.Preferably becomes the transition profile formed so that it starts from the end face of the Segments in the circumferential direction at least over a distance of 0.2 mm extends. It is also advantageous if the transition profile extends at least to a depth of 0.05 mm. Outside of these minimum dimensions it is with usual Applications very difficult, satisfactory start-up behavior the rolling element to reach the flange. The transition profile usually has a rounded shape to indicate the transition preferably to be gentle.
In einem bevorzugten Ausführungsbeispiel sind die Wälzkörper an ihren Stirnflächen, die an der Anlauffläche anlaufen, ballig ausgebildet. Dies trägt zu einer weiteren Verbesserung des Anlaufverhaltens insbesondere in den Übergangsbereichen zwischen benachbarten Segmenten bei.In are a preferred embodiment the rolling elements their faces, the on the contact surface start up, crowned. This contributes to further improvement the start-up behavior especially in the transition areas between adjacent segments.
Das erfindungsgemäße Wälzlager kann beispielsweise als Kegelrollenlager ausgebildet sein und eignet sich insbesondere zum Einsatz bei einer Windenergieanlage.The Rolling bearing according to the invention can be designed and suitable, for example, as a tapered roller bearing are particularly suitable for use in a wind turbine.
Die Erfindung wird nachstehend anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The Invention is illustrated below with reference to that in the drawing Embodiment explained in more detail.
Es zeigen:It demonstrate:
Im
Betrieb, d. h. wenn der Außenring
Als
eine weitere Maßnahme
im Sinne einer möglichst
verschleißfreien Überwindung
des Übergangsbereichs
zwischen benachbarten Innenringsegmenten
- 11
- KegelrollenlagerTapered roller bearings
- 22
- Außenringouter ring
- 33
- Innenringinner ring
- 44
- InnenringsegmentInner ring segment
- 55
- KegelrolleTapered roller
- 66
- KäfigCage
- 77
- Stirnflächeface
- 88th
- Flanschflange
- 99
- Anlaufflächeapproach surface
- 1010
- Hohlwellehollow shaft
- 1111
- Schultershoulder
- 1212
- Seitenringside ring
- 1313
-
Schraube
(Seitenring
12 )Screw (side ring12 ) - 1414
-
Schraube
(Außenring
2 )Screw (outer ring2 ) - 1515
- Gehäusecasing
- 1616
- Spaltgap
- 1717
- Endflächeend face
- 1818
- ÜbergangsprofilTransition profile
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20306899U DE20306899U1 (en) | 2003-05-05 | 2003-05-05 | Rolling bearing for wind power plant, for example, has segmented flange with run-on face which for each bearing segment in proximity of end faces assumes form of transition profile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20306899U DE20306899U1 (en) | 2003-05-05 | 2003-05-05 | Rolling bearing for wind power plant, for example, has segmented flange with run-on face which for each bearing segment in proximity of end faces assumes form of transition profile |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20306899U1 true DE20306899U1 (en) | 2004-09-09 |
Family
ID=32981378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20306899U Expired - Lifetime DE20306899U1 (en) | 2003-05-05 | 2003-05-05 | Rolling bearing for wind power plant, for example, has segmented flange with run-on face which for each bearing segment in proximity of end faces assumes form of transition profile |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20306899U1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004058905A1 (en) * | 2004-12-07 | 2006-06-14 | Aktiebolaget Skf | Rolling bearing with segmented bearing rings for rotating shaft has inner and outer rings with at least three segments each |
EP1696143A2 (en) * | 2005-02-25 | 2006-08-30 | Jtekt Corporation | Double split bearing |
DE102010026649A1 (en) | 2010-07-09 | 2012-01-12 | Schaeffler Technologies Gmbh & Co. Kg | Rolling bearing for the rotor bearing of a wind turbine |
DE102010042090A1 (en) * | 2010-10-07 | 2012-04-12 | Aktiebolaget Skf | Rolling bearing with a gap seal |
US9702407B2 (en) | 2010-11-16 | 2017-07-11 | Harnischfeger Technologies, Inc. | Roller circle assembly for heavy machinery |
DE102020200684A1 (en) | 2020-01-22 | 2021-07-22 | Thyssenkrupp Ag | Rolling bearing ring with at least one rolling element raceway and rolling bearing |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE338588C (en) * | 1918-06-18 | 1921-06-28 | Skf Svenska Kullagerfab Ab | Ball bearing without filler hole |
DE363532C (en) * | 1922-11-10 | Erik August Forsberg | Ball or roller bearings | |
GB258809A (en) * | 1926-04-26 | 1926-09-30 | Johan Karl Kuylenstierna | Improvements in roller or ball bearings |
US1728999A (en) * | 1926-01-15 | 1929-09-24 | Kuylenstierna Johan Karl | Roll or ball bearings |
DE945421C (en) * | 1953-11-18 | 1956-07-05 | G & J Jaeger G M B H | Double row roller bearing for adjustable propeller blades of axial fans |
DE7125850U (en) * | 1971-09-30 | Elges H | roller bearing | |
DE3920689A1 (en) * | 1989-06-21 | 1991-01-10 | Mannesmann Ag | ROLLER BEARING |
GB2289093A (en) * | 1994-05-06 | 1995-11-08 | Cooper Roller Bearings Company | Split roller bearing |
DE20116649U1 (en) * | 2001-10-10 | 2001-12-06 | Skf Ab | Bearings, especially rolling bearings |
-
2003
- 2003-05-05 DE DE20306899U patent/DE20306899U1/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE363532C (en) * | 1922-11-10 | Erik August Forsberg | Ball or roller bearings | |
DE7125850U (en) * | 1971-09-30 | Elges H | roller bearing | |
DE338588C (en) * | 1918-06-18 | 1921-06-28 | Skf Svenska Kullagerfab Ab | Ball bearing without filler hole |
US1728999A (en) * | 1926-01-15 | 1929-09-24 | Kuylenstierna Johan Karl | Roll or ball bearings |
GB258809A (en) * | 1926-04-26 | 1926-09-30 | Johan Karl Kuylenstierna | Improvements in roller or ball bearings |
DE945421C (en) * | 1953-11-18 | 1956-07-05 | G & J Jaeger G M B H | Double row roller bearing for adjustable propeller blades of axial fans |
DE3920689A1 (en) * | 1989-06-21 | 1991-01-10 | Mannesmann Ag | ROLLER BEARING |
GB2289093A (en) * | 1994-05-06 | 1995-11-08 | Cooper Roller Bearings Company | Split roller bearing |
DE20116649U1 (en) * | 2001-10-10 | 2001-12-06 | Skf Ab | Bearings, especially rolling bearings |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004058905A1 (en) * | 2004-12-07 | 2006-06-14 | Aktiebolaget Skf | Rolling bearing with segmented bearing rings for rotating shaft has inner and outer rings with at least three segments each |
DE102004058905B4 (en) * | 2004-12-07 | 2010-02-18 | Aktiebolaget Skf | Rolling bearings with segmented bearing rings |
EP1696143A2 (en) * | 2005-02-25 | 2006-08-30 | Jtekt Corporation | Double split bearing |
EP1696143A3 (en) * | 2005-02-25 | 2008-10-15 | Jtekt Corporation | Double split bearing |
DE102010026649A1 (en) | 2010-07-09 | 2012-01-12 | Schaeffler Technologies Gmbh & Co. Kg | Rolling bearing for the rotor bearing of a wind turbine |
DE102010042090A1 (en) * | 2010-10-07 | 2012-04-12 | Aktiebolaget Skf | Rolling bearing with a gap seal |
US9702407B2 (en) | 2010-11-16 | 2017-07-11 | Harnischfeger Technologies, Inc. | Roller circle assembly for heavy machinery |
DE102020200684A1 (en) | 2020-01-22 | 2021-07-22 | Thyssenkrupp Ag | Rolling bearing ring with at least one rolling element raceway and rolling bearing |
DE102020200684B4 (en) | 2020-01-22 | 2024-01-04 | Thyssenkrupp Ag | Slewing bearing with a rolling bearing ring with at least one rolling element raceway |
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