DE19640094A1 - Ball bearing for two part flywheel - Google Patents
Ball bearing for two part flywheelInfo
- Publication number
- DE19640094A1 DE19640094A1 DE19640094A DE19640094A DE19640094A1 DE 19640094 A1 DE19640094 A1 DE 19640094A1 DE 19640094 A DE19640094 A DE 19640094A DE 19640094 A DE19640094 A DE 19640094A DE 19640094 A1 DE19640094 A1 DE 19640094A1
- Authority
- DE
- Germany
- Prior art keywords
- rolling
- rolling bearing
- bearing according
- 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.)
- Granted
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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6629—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the 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
- 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
-
- 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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6607—Retaining the grease in or near the bearing
- F16C33/6614—Retaining the grease in or near the bearing in recesses or cavities provided in retainers, races or 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C2361/55—Flywheel systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Die Erfindung betrifft ein Wälzlager, insbesondere zur Verwen dung in Zweimassen-Schwungrädern, mit einem Innenring und einem Außenring, die jeweils mit einer Laufbahn für die Wälzkörper versehen sind.The invention relates to a rolling bearing, in particular for use in two-mass flywheels, with an inner ring and one Outer ring, each with a raceway for the rolling elements are provided.
In Zweimassen-Schwungrädern, wie sie beispielsweise in der DE 43 39 421 A1 beschrieben sind, ist zwischen der Primär- und der Se kundärmasse ein Wälzlager angeordnet, um die relative Verdreh barkeit der beiden Massen zueinander zu gestatten. Das Wälzlager ist vielfach ein Rillenkugellager mit Fettfüllung. Bei einem zylindrischen Lageraußenring wird aufgrund der Fliehkraft das Fett im Bereich der Kugel immer in die Laufbahn gedrückt. Im axial äußeren Bereich, wo die Dichtscheiben angeordnet sind, wird das frische Fett aber nicht durchmischt und kann nicht auf gebraucht werden. Aufgrund der Alterung bzw. der mangelhaften Durchmischung ist ein vorzeitiger Verschleiß des Kugellagers nicht ausgeschlossen. Ein Nachfetten des Lagers im eingebauten Zustand wäre zwar grundsätzlich möglich, ist aber mit einem sehr hohen Aufwand und entsprechenden Kosten verbunden. Um die War tungskosten niedrig zu halten, wird bei der Auswahl des Wälzla gers folglich eine Überdimensionierung notwendig sein, um sicherzustellen, daß die Lebensdauer des Lagers mit der Lebens dauer des Getriebes kongruent ist.In two-mass flywheels, such as those in DE 43 39 421 A1 are described, is between the primary and the Se Kundärasse a rolling bearing arranged to the relative torsion allow the two masses to each other. The roller bearing is often a deep groove ball bearing with grease filling. At a cylindrical bearing outer ring is due to the centrifugal force Grease in the area of the ball always pressed into the track. in the axially outer area where the sealing washers are arranged, the fresh fat is not mixed and cannot open to be needed. Due to aging or poor Mixing is premature wear of the ball bearing not excluded. Relubrication of the bearing in the built-in Condition would be possible in principle, but is with a very high effort and associated costs. To the war Keeping the costs low is important when selecting the rolling oversizing may therefore be necessary in order to ensure that the life of the bearing matches life duration of the transmission is congruent.
Von dieser Problemstellung ausgehend soll ein gattungsgemäßes Wälzlager so verbessert werden, daß eine vollständige Durch mischung und Aufbrauch der Fettfüllung während des Betriebs mög lich ist.Proceeding from this problem, a generic Rolling bearings are improved so that a complete through Mixing and use of the fat filling possible during operation is.
Zur Problemlösung zeichnet sich das eingangs beschriebene Wälz lager dadurch aus, daß der Außenring innen mit einem Doppelkonus versehen ist, wobei die Öffnungswinkel der Konusse jeweils in Richtung der Laufbahn verlaufen.To solve the problem, the roller described at the outset stands out bearings in that the outer ring inside with a double cone is provided, the opening angle of the cones each in Run in the direction of the career.
Durch diese Maßnahme weist die dem Wälzkörper zugewandte Seite eine im Querschnitt dachförmige Kontur auf. Infolge der Flieh kraft wird entlang dieser schrägen Bahn beidseitig zu den Wälz körpern selbst von ganz axial außen Fett zur Laufbahn der Wälz körper gefördert. Damit erfolgt eine Durchmischung des gesamten im Wälzlager eingeschlossenen Fettvorrates. Gegenüber Standard wälzlagern wird der damit während der Lager-Lebensdauer verwend bare Fettvorrat vergrößert. Die Schmiereigenschaften werden folglich verbessert und die Lebensdauer bei gleicher Leistung erhöht. Im Umkehrschluß ist daraus zu folgern, daß bei gleich bleibender Lagerleistung das Lager verkleinert werden könnte.As a result of this measure, the side facing the rolling element faces a roof-shaped contour in cross-section. As a result of fleeing Power becomes rolling on both sides of this inclined path grease even from the very outside axially to the raceway of the roller body encouraged. This mixes the whole Grease reserve enclosed in the rolling bearing. Compared to standard roller bearings is used during the bearing life Bare fat reserve increased. The lubricating properties will consequently improved and the service life with the same performance elevated. Conversely, it can be concluded that the same permanent storage performance the storage could be reduced.
Vorzugsweise betragen die Öffnungswinkel der Konusse etwa 50 Eine solche Abschrägung ist ausreichend, das Fett zur Laufbahn hin (aufwärts) zu fördern.The opening angles of the cones are preferably approximately 50 Such a bevel is sufficient, the fat to the career to promote (upwards).
Bei einem bevorzugten Ausführungsbeispiel ist im Innenring auf seiner den Wälzkörpern zugewandten Seite durch mindestens eine umlaufende Nut eine Tasche ausgebildet. Diese Tasche dient als Fettreservoir, so daß die zur Verfügung stehende Schmiermittel menge im Lager erhöht werden kann. In a preferred embodiment is in the inner ring its side facing the rolling elements by at least one circumferential groove formed a pocket. This bag serves as a Grease reservoir so that the available lubricant quantity in the warehouse can be increased.
Vorzugsweise sind beidseitig zu den Wälzkörpern Taschen ausge bildet. Die mindestens eine Tasche läuft in Richtung der Wälz körper schräg aus. Die Fliehkräfte führen dann ebenfalls dazu, daß Fett umgewälzt und zur Laufbahn des Innenrings gefördert wird.Pockets are preferably formed on both sides of the rolling elements forms. The at least one pocket runs in the direction of the roller body at an angle. The centrifugal forces then also lead to that fat is circulated and conveyed to the raceway of the inner ring becomes.
Vorzugsweise schließt sich an den schrägen Auslauf der Tasche ein bis zur Laufbahn reichender zylindrischer Abschnitt an. Die ser gestattet einen Aufnahmedurchmesser für das Schleifen des Lagerinnenringes vorzusehen.Preferably adjoins the oblique outlet of the pocket a cylindrical section extending to the raceway. The This allows a mounting diameter for grinding the To provide inner bearing ring.
Die beidseitig im Lager vorgesehenen Dichtungen laufen mit ihrer Dichtlippe vorzugsweise axial am Innenring an. Durch diese Maß nahme wird die Dichtstelle nach außen verlagert und das zur Ver fügung stehende Volumen im Wälzlager vergrößert, so daß die zur Verfügung stehende Fettmenge weiter erhöht werden kann.The seals provided on both sides in the bearing run with their Sealing lip preferably axially on the inner ring. By that measure the sealing point is relocated to the outside and the Ver added volume in the rolling bearing increases, so that the Available amount of fat can be increased further.
Zur weiteren Erhöhung der Schmiermittelmenge ist vorgesehen, das Wälzlager gegenüber einem Standardlager um mehr als 30% breiter aus zugestalten.To further increase the amount of lubricant, it is provided that Rolling bearings are more than 30% wider than a standard bearing from shape.
Anhand einer Zeichnung sollen Ausführungsbeispiele der Erfindung nachfolgend näher erläutert werden. Es zeigt:Exemplary embodiments of the invention are intended to be illustrated are explained in more detail below. It shows:
Fig. 1 ein erfindungsgemäßes Wälzlager im Querschnitt; Figure 1 shows a roller bearing according to the invention in cross section.
Fig. 2 ein weiteres Ausführungsbeispiel eines erfindungsgemä ßen Wälzlagers im Querschnitt; Figure 2 shows a further embodiment of a roller bearing according to the invention in cross section.
Fig. 3 ein drittes Ausführungsbeispiel eines erfindungsgemä ßen Wälzlagers im Querschnitt. Fig. 3 shows a third embodiment of an inventive roller bearing in cross section.
Das Wälzlager besteht aus dem Außenring 1, dem Innenring 2 und den dazwischen angeordneten Wälzkörpern 3 sowie den beidseitigen Dichtungen 5, 5′. Das Lager ist fettgefüllt.The rolling bearing consists of the outer ring 1 , the inner ring 2 and the rolling elements 3 arranged between them and the seals on both sides 5 , 5 '. The warehouse is filled with grease.
Wie den Figuren entnehmbar ist, ist der äußere Laufring 1 innen mit einem Doppelkonus 4 derart versehen, daß der Öffnungswinkel α beider Konusse in Richtung der Laufbahn 11, 21 ragt. Durch diese bezogen auf den Querschnitt dachförmige Ausgestaltung wird bei der Rotation des Außenringes I aufgrund der Fliehkräfte im axial äußeren Bereich befindliches Fett in Richtung der Laufbahn 11, 21 gefördert. Zur Vergrößerung des Volumens im Inneren des Wälzlagers sind, wie Fig. 2 zeigt, Taschen 6 im Innenring 2 ausgebildet. Der Übergang von den Taschen 6 zur Laufbahn 21 ist so in Richtung des Außenringes 1 angeschrägt, daß der in den Taschen 6, die durch Ringnute gebildet werden, befindliche Fett vorrat in Richtung der Laufbahn 21 gefördert werden kann. Die Dichtungen 5, 5′ können mit ihrer Dichtlippe 8 radial gegen den Innenring anlaufen oder, um das Volumen im Wälzlager zu erhöhen, axial, wie in Fig. 3 für die linke Dichtung 5 dargestellt. Um eine Aufnahmefläche zum späteren Schleifen des Lagerinnenringes 2 zu schaffen, ist es vorteilhaft, wenn sich an den schrägen Übergang der Tasche 6 ein zylindrischer Bereich 7 anschließt. Gegenüber Standardlagern kann die Breite des Wälzlagers um bis zu 30% größer ausgebildet sein, um das Volumen für das Schmier mittel zu vergrößern.As can be seen from the figures, the outer race 1 is provided on the inside with a double cone 4 such that the opening angle α of both cones projects in the direction of the raceway 11 , 21 . As a result of this roof-shaped configuration in relation to the cross section, grease located in the axially outer region due to the centrifugal forces is conveyed in the direction of the raceway 11 , 21 during the rotation of the outer ring I. To increase the volume inside the rolling bearing, pockets 6 are formed in the inner ring 2 , as shown in FIG. 2. The transition from the pockets 6 to the track 21 is chamfered in the direction of the outer ring 1 so that the fat located in the pockets 6 , which are formed by ring grooves, can be conveyed in the direction of the track 21 . The seals 5 , 5 'can start with their sealing lip 8 radially against the inner ring or, to increase the volume in the rolling bearing, axially, as shown in Fig. 3 for the left seal 5 . In order to create a receiving surface for later grinding of the bearing inner ring 2 , it is advantageous if a cylindrical region 7 adjoins the oblique transition of the pocket 6 . Compared to standard bearings, the width of the rolling bearing can be made up to 30% larger in order to increase the volume for the lubricant.
BezugszeichenlisteReference list
1 Außenring
2 Innenring
3 Wälzkörper
4 Konus
5 Dichtung
5′ Dichtung
6 Tasche
7 zylindrischer Bereich
8 Dichtlippe
11 Laufbahn
21 Laufbahn 1 outer ring
2 inner ring
3 rolling elements
4 cones
5 seal
5 ′ seal
6 pocket
7 cylindrical area
8 sealing lip
11 career
21 career
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19640094A DE19640094C2 (en) | 1996-09-28 | 1996-09-28 | Rolling bearings, especially for dual-mass flywheels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19640094A DE19640094C2 (en) | 1996-09-28 | 1996-09-28 | Rolling bearings, especially for dual-mass flywheels |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19640094A1 true DE19640094A1 (en) | 1998-04-09 |
DE19640094C2 DE19640094C2 (en) | 1998-07-16 |
Family
ID=7807290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19640094A Expired - Fee Related DE19640094C2 (en) | 1996-09-28 | 1996-09-28 | Rolling bearings, especially for dual-mass flywheels |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19640094C2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2916026A1 (en) * | 2007-05-09 | 2008-11-14 | Snr Roulements Sa | Ball bearing e.g. angular contact ball bearing, assembly for e.g. ball ring, has circular groove arranged such that sphere has contact point located at axis distance higher than another axis distance and distance between sleeve and axis |
DE102008048517A1 (en) | 2008-09-23 | 2010-03-25 | Schaeffler Kg | Antifriction bearing for dual-mass flywheel, has outer ring, inner ring and bearing balls, where internal space of antifriction bearing is filled with lubricant |
DE202011105635U1 (en) | 2011-09-13 | 2012-02-17 | Schaeffler Technologies Gmbh & Co. Kg | Rolling bearings of a dual mass flywheel |
CN104088909A (en) * | 2014-07-08 | 2014-10-08 | 徐挺 | Deep groove ball bearing outer ring and alloy material for manufacturing same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005018616A1 (en) * | 2005-04-21 | 2006-10-26 | Schaeffler Kg | Angular contact ball bearing has annular grooves in inner and outer rings which act as lubricant storage system and are at least partly covered by ball bearings |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1696920U (en) * | 1955-02-09 | 1955-04-21 | Skf Kugellagerfabriken Gmbh | ROLLBODY FOR ROLLER BEARINGS. |
DE961770C (en) * | 1954-11-11 | 1957-04-11 | Ziller & Co | Roller bearing closed with sealing rings |
DE1425947A1 (en) * | 1963-11-22 | 1969-04-30 | Fairey Eng | Thrust bearing arrangement for heavy, large objects, especially for rotatable sections of the shielding of nuclear reactors |
US4039231A (en) * | 1976-03-12 | 1977-08-02 | Yale Engineering Company | Ball bearing assembly |
DE3027485A1 (en) * | 1980-07-19 | 1982-02-18 | FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt | DOUBLE-ROW BEARING BEARING |
DE3513722A1 (en) * | 1985-04-17 | 1986-10-23 | Schaeffler Wälzlager GmbH, 6650 Homburg | Angular ball bearing |
DE3914289A1 (en) * | 1989-04-29 | 1990-10-31 | Schaeffler Waelzlager Kg | RADIAL ROLLER BEARING |
DE3528961C2 (en) * | 1985-08-13 | 1992-01-09 | Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De | |
DE4339421A1 (en) * | 1992-12-10 | 1994-06-16 | Fichtel & Sachs Ag | Dual mass flywheel |
DE4329398A1 (en) * | 1993-01-13 | 1994-07-14 | Ford Werke Ag | Roller bearing with filter discs between inner and outer race |
DE4411287A1 (en) * | 1993-04-02 | 1994-10-06 | Mc Gill Mfg Co | camp |
-
1996
- 1996-09-28 DE DE19640094A patent/DE19640094C2/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE961770C (en) * | 1954-11-11 | 1957-04-11 | Ziller & Co | Roller bearing closed with sealing rings |
DE1696920U (en) * | 1955-02-09 | 1955-04-21 | Skf Kugellagerfabriken Gmbh | ROLLBODY FOR ROLLER BEARINGS. |
DE1425947A1 (en) * | 1963-11-22 | 1969-04-30 | Fairey Eng | Thrust bearing arrangement for heavy, large objects, especially for rotatable sections of the shielding of nuclear reactors |
US4039231A (en) * | 1976-03-12 | 1977-08-02 | Yale Engineering Company | Ball bearing assembly |
DE3027485A1 (en) * | 1980-07-19 | 1982-02-18 | FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt | DOUBLE-ROW BEARING BEARING |
DE3513722A1 (en) * | 1985-04-17 | 1986-10-23 | Schaeffler Wälzlager GmbH, 6650 Homburg | Angular ball bearing |
DE3528961C2 (en) * | 1985-08-13 | 1992-01-09 | Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De | |
DE3914289A1 (en) * | 1989-04-29 | 1990-10-31 | Schaeffler Waelzlager Kg | RADIAL ROLLER BEARING |
DE4339421A1 (en) * | 1992-12-10 | 1994-06-16 | Fichtel & Sachs Ag | Dual mass flywheel |
DE4329398A1 (en) * | 1993-01-13 | 1994-07-14 | Ford Werke Ag | Roller bearing with filter discs between inner and outer race |
DE4411287A1 (en) * | 1993-04-02 | 1994-10-06 | Mc Gill Mfg Co | camp |
Non-Patent Citations (1)
Title |
---|
DE-Katalog, SKF Hauptkatalog, 2800T/Dd 6000 Aug.1971, S.158 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2916026A1 (en) * | 2007-05-09 | 2008-11-14 | Snr Roulements Sa | Ball bearing e.g. angular contact ball bearing, assembly for e.g. ball ring, has circular groove arranged such that sphere has contact point located at axis distance higher than another axis distance and distance between sleeve and axis |
DE102008048517A1 (en) | 2008-09-23 | 2010-03-25 | Schaeffler Kg | Antifriction bearing for dual-mass flywheel, has outer ring, inner ring and bearing balls, where internal space of antifriction bearing is filled with lubricant |
DE202011105635U1 (en) | 2011-09-13 | 2012-02-17 | Schaeffler Technologies Gmbh & Co. Kg | Rolling bearings of a dual mass flywheel |
CN104088909A (en) * | 2014-07-08 | 2014-10-08 | 徐挺 | Deep groove ball bearing outer ring and alloy material for manufacturing same |
Also Published As
Publication number | Publication date |
---|---|
DE19640094C2 (en) | 1998-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ZF SACHS AG, 97424 SCHWEINFURT, DE |
|
8339 | Ceased/non-payment of the annual fee |