DE29511873U1 - Self-aligning bearing - Google Patents
Self-aligning bearingInfo
- Publication number
- DE29511873U1 DE29511873U1 DE29511873U DE29511873U DE29511873U1 DE 29511873 U1 DE29511873 U1 DE 29511873U1 DE 29511873 U DE29511873 U DE 29511873U DE 29511873 U DE29511873 U DE 29511873U DE 29511873 U1 DE29511873 U1 DE 29511873U1
- Authority
- DE
- Germany
- Prior art keywords
- inner ring
- self
- rolling elements
- aligning bearing
- outer ring
- 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
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 1
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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
- F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
-
- 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
- F16C19/24—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 radial load mainly
- F16C19/26—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 radial load mainly with a single row of 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
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Description
INA Wälzlager Schaeffler KG, 91072 HerzogenaurachINA Rolling Bearings Schaeffler KG, 91072 Herzogenaurach
ANR 17 17 332ANR 17 17 332
2782-11-DE2782-11-EN
PendellagerSelf-aligning bearing
Die Erfindung betrifft ein Pendellager, bei dem ein Innenring und ein Außenring gegeneinander um eine Längsachse verschwenkbar angeordnet sind und Wälzkörper an der Innenringiaufbahn und Außenringlaufbahn auf einer Kreisbahn abwälzen, wobei die Außenringlaufbahn im Längsschnitt als Kreisbogen und die Innenringiaufbahn geradlinig ausgebildet sind und die Wälzkörper einen mittleren zylindrischen Abschnitt und beidseitig daran anschließende kreisbogenförmige rotationssymmetrische Abschnitte aufweisen, so daß die Tragabschnitte der Wälzkörper einerseits durch den zylindrischen Abschnitt und andererseits durch deren kreisbogenförmige rotationssymmetrische Abschnitte gebildet sind. .The invention relates to a self-aligning bearing in which an inner ring and an outer ring are arranged so that they can pivot relative to one another about a longitudinal axis and rolling elements roll on a circular path on the inner ring raceway and outer ring raceway, the outer ring raceway being designed as a circular arc in longitudinal section and the inner ring raceway being straight and the rolling elements having a central cylindrical section and circular arc-shaped rotationally symmetrical sections adjoining it on both sides, so that the supporting sections of the rolling elements are formed on the one hand by the cylindrical section and on the other hand by their circular arc-shaped rotationally symmetrical sections.
Hintergrund der ErfindungBackground of the invention
Ein derartiges Pendellager ist aus der US 12 80 664 vorbekannt. Durch die hohlkugelige Laufbahn des Außenringes kann sich der Rollenkranz mit dem !nnenring pendelnd einstellen, so daß das Lager unempfindlich gegen Durchbiegungen der Welle und gegen Fluchtungsfehler ist. Nachteilig dabei ist, daß ein solch gattungsgemäßes Lager aufgrund der Borde des Innenringes keine Längsverschiebungen in axialer Richtung zuläßt.Such a self-aligning bearing is already known from US 12 80 664. Due to the hollow spherical raceway of the outer ring, the roller ring can adjust itself in an oscillating manner with the inner ring, so that the bearing is insensitive to deflections of the shaft and to misalignment. The disadvantage here is that such a bearing does not allow any longitudinal displacement in the axial direction due to the rims of the inner ring.
2782-11-DE 22782-11-EN 2
Aufgabe der Erfindung ist es daher, ein gattungsgemäßes Lager so zu verbessern, daß es Längsverschiebungen in axialer Richtung zuläßt.The object of the invention is therefore to improve a generic bearing so that it allows longitudinal displacements in the axial direction.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der Innenring über seine ganze axiaie Breite einen konstanten Durchmesser aufweist. Durch die fehlenden Borde des Innenringes wird erreicht, daß ein problemloses Verschieben in axialer Richtung einschließlich gelagerter Welle, beispielsweise aufgrund von Wärmedehnungen, möglich ist.According to the invention, this object is achieved in that the inner ring has a constant diameter over its entire axial width. The lack of rims on the inner ring means that it can be moved easily in the axial direction, including the mounted shaft, for example due to thermal expansion.
Vorteilhafte Ausgestaltungen der erfindungsgemäßen Lösung sind in den Unteransprüchen beschrieben. So ist nach Anspruch 2 vorgesehen, daß die Wälzkörper in einem Käfig geführt sind. Aus Anspruch 3 geht hervor, daß ein solches Pendellager vorzugsweise als Losiager eingesetzt wird, d. h. nur radiale Kräfte aufnimmt.Advantageous embodiments of the solution according to the invention are described in the subclaims. According to claim 2, the rolling elements are guided in a cage. From claim 3 it emerges that such a self-aligning bearing is preferably used as a floating bearing, i.e. it only absorbs radial forces.
Kurze Beschreibung der ZeichnungShort description of the drawing
Die einzige Figur zeigt ein erfindungsgemäßes Pendellager im Längsschnitt gesehen.The only figure shows a self-aligning bearing according to the invention in longitudinal section.
Das in der einzigen Figur dargestellte Pendellager umfaßt den Außenring 1, den Innenring 2 sowie die auf zugehörigen Laufbahnen 3 und 4 abwälzenden Wälzkörper 5. Die Laufbahn 3 des Außenringes 1 weist einen im Längsschnitt kreisbogenförmigen Verlauf auf, während die Laufbahn 4 des Innenringes 2The self-aligning bearing shown in the single figure comprises the outer ring 1, the inner ring 2 and the rolling elements 5 rolling on the associated raceways 3 and 4. The raceway 3 of the outer ring 1 has a circular arc-shaped course in longitudinal section, while the raceway 4 of the inner ring 2
2782-11-DE 32782-11-EN 3
geradlinig verläuft. Die Wälzkörper 5 sind umfangsverteilt angeordnet und das Pendellager ist als vollrolliges Lager ausgebildet.runs in a straight line. The rolling elements 5 are distributed around the circumference and the self-aligning bearing is designed as a full complement bearing.
Es ist erkennbar, daß die Wälzkörper 5 einen mittleren zylindrischen Abschnitt 6 und sich beidseitig daran anschließende kreisbogenförmige rotationssymmetrische Abschnitte 7 aufweisen. Durch diese Ausgestaltung der Wälzkörper 5 bzw. der Laufbahnen 3 und 4 ergeben sich linienförmige Tragabschnitte 8 und 9, die in axialer Richtung gegeneinander versetzt sind. Weist nun eine nicht dargestellte Welle gegenüber der Längsachse 10 einen Fluchtungswinkel &agr; auf, so kann dieser durch ein entsprechendes Verschwenken des Innenringes 2 und durch ein Verschieben der Tragabschnitte 9 entgegengesetzt zur Uhrzeigerrichtung ausgeglichen werden. Unterliegt ein solches Lager einer Wärmedehnung, kann diese problemlos durch ein axiales Verschieben des bordlosen Innenringes 2 gegenüber dem Außenring 1 um den Betrag s ausgeglichen werden.It can be seen that the rolling elements 5 have a central cylindrical section 6 and circular arc-shaped rotationally symmetrical sections 7 adjoining it on both sides. This design of the rolling elements 5 or the raceways 3 and 4 results in linear support sections 8 and 9 which are offset from one another in the axial direction. If a shaft (not shown) has an alignment angle α with respect to the longitudinal axis 10, this can be compensated by a corresponding pivoting of the inner ring 2 and by moving the support sections 9 in an anti-clockwise direction. If such a bearing is subject to thermal expansion, this can be easily compensated by axially moving the rimless inner ring 2 with respect to the outer ring 1 by the amount s.
2782-11-DE2782-11-EN
BezugszahlenlisteReference number list
1 Außenring1 outer ring
2 Innenring2 Inner ring
3 Laufbahn des Außenringes3 Outer ring raceway
4 Laufbahn des Innenringes4 Inner ring raceway
5 Wälzkörper5 rolling elements
6 mittlerer zylindrischer Abschnitt6 middle cylindrical section
7 kreisbogenförmig rotationssymmetrischer Abschnitt7 circular arc-shaped rotationally symmetrical section
8 Tragabschnitt8 Support section
9 Tragabschnitt9 Support section
10 Längsachse10 Longitudinal axis
&agr; Fiuchtungswinkel s Betrag der axialen Verschiebung α Angle of inclination s Amount of axial displacement
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29511873U DE29511873U1 (en) | 1995-07-22 | 1995-07-22 | Self-aligning bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29511873U DE29511873U1 (en) | 1995-07-22 | 1995-07-22 | Self-aligning bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29511873U1 true DE29511873U1 (en) | 1995-09-28 |
Family
ID=8010886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29511873U Expired - Lifetime DE29511873U1 (en) | 1995-07-22 | 1995-07-22 | Self-aligning bearing |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29511873U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001020183A1 (en) * | 1999-09-16 | 2001-03-22 | The Timken Company | Self-aligned roller bearing |
| DE102011014079A1 (en) * | 2011-03-16 | 2012-09-20 | Wzl Aachen Gmbh | Multipoint radial bearing, has rolling elements constructed such that contact region with cylindrical mold is provided in middle of rolling elements, where elements are guided on ring by line contact and on another ring over point contacts |
-
1995
- 1995-07-22 DE DE29511873U patent/DE29511873U1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001020183A1 (en) * | 1999-09-16 | 2001-03-22 | The Timken Company | Self-aligned roller bearing |
| US6354745B1 (en) | 1999-09-16 | 2002-03-12 | The Timken Company | Fully self-aligning roller bearing |
| DE102011014079A1 (en) * | 2011-03-16 | 2012-09-20 | Wzl Aachen Gmbh | Multipoint radial bearing, has rolling elements constructed such that contact region with cylindrical mold is provided in middle of rolling elements, where elements are guided on ring by line contact and on another ring over point contacts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19951109 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 19980806 |
|
| R081 | Change of applicant/patentee |
Owner name: INA-SCHAEFFLER KG, DE Free format text: FORMER OWNER: INA WAELZLAGER SCHAEFFLER KG, 91074 HERZOGENAURACH, DE Effective date: 20010312 |
|
| R081 | Change of applicant/patentee |
Owner name: INA-SCHAEFFLER KG, DE Free format text: FORMER OWNER: INA WAELZLAGER SCHAEFFLER OHG, 91074 HERZOGENAURACH, DE Effective date: 20020221 |
|
| R157 | Lapse of ip right after 6 years |
Effective date: 20020501 |