WO2007125056A1 - Roller bearing of a water pump of an internal combustion engine - Google Patents

Roller bearing of a water pump of an internal combustion engine Download PDF

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Publication number
WO2007125056A1
WO2007125056A1 PCT/EP2007/053974 EP2007053974W WO2007125056A1 WO 2007125056 A1 WO2007125056 A1 WO 2007125056A1 EP 2007053974 W EP2007053974 W EP 2007053974W WO 2007125056 A1 WO2007125056 A1 WO 2007125056A1
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WO
WIPO (PCT)
Prior art keywords
rollers
bearing
rolling bearing
outer ring
balls
Prior art date
Application number
PCT/EP2007/053974
Other languages
German (de)
French (fr)
Inventor
Kleberson Sierra
Marcelo Machado
Claudenir Gomes
Original Assignee
Schaeffler 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.)
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Publication date
Application filed by Schaeffler Kg filed Critical Schaeffler Kg
Priority to BRPI0711164-9A priority Critical patent/BRPI0711164A2/en
Publication of WO2007125056A1 publication Critical patent/WO2007125056A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • 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
    • F16C19/49—Bearings with both balls and 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
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps

Definitions

  • the invention relates to a rolling bearing of a water pump of an internal combustion engine, with rolling bodies consisting of balls and rollers according to the preamble of patent claim 1.
  • raceways for rolling body rings are incorporated at a certain distance.
  • a ball race and a roller ring form a double-row fixed bearing floating bearing arrangement.
  • the roller ring is located as a floating bearing on the side of the water pump shaft loaded by the Riemenyak a drive pulley higher, while the ball race is usually designed as a fixed bearing and absorbs the radial thrust and the axial thrust of the impeller.
  • the invention has for its object to provide a rolling bearing of a water pump of an internal combustion engine, which consists of balls and rollers Wälzkör- pern, which avoids the disadvantages of the prior art and in particular has a compact design, and is able to safely absorb the axial and radial forces occurring ,
  • the invention is based on the finding that the stated object can be achieved in a surprisingly simple manner in that the rolling bearing of the water pump shaft is designed as a single-row roller ball bearings.
  • the invention is therefore based on a rolling bearing of a water pump of an internal combustion engine, consisting of balls and rollers rolling elements, which are arranged between a bearing outer ring and a shaft of the water pump, wherein the radially inner periphery of the bearing outer ring and extending within the bearing outer ring portion of the radially outer Periphery of the shaft has a ball track, in which the balls are arranged in rolling contact with the ball track.
  • the rolling bearing is designed as a single-row roller ball bearings.
  • the rolling bearing is designed to be very compact, that is to say narrow, while being able to securely absorb the axial and radial forces which occur. Due to the construction with a small axial width not only less space can be used, it can also be saved significantly weight, since the bearing outer ring is correspondingly lightweight due to the short length.
  • Roller ball bearings so single-row bearings, where alternately roles and balls are arranged between a bearing inner ring and a bearing outer ring, are known per se, for example by CH 241 985 B, DE 1 898 225 U1 and DE 41 42 433 C1.
  • the balls which also serve to absorb the axial forces, are arranged in grooves or Kugel Insertsbah- NEN, while the rollers that serve to absorb the radial forces roll on the remaining shoulder surfaces of the bearing rings.
  • roller ball bearings for storage of water pump waves is not possible, since such an arrangement in addition to the bearing outer ring also makes a bearing inner ring necessary.
  • bearing inner rings are not considered for water pump waves, as this would lead to unacceptable leakage problems and to further stress at least of radial space.
  • the invention combines the advantages of the previously known bearings for waves of water pumps in that the rollers, which can absorb radial forces particularly well, and the balls, which are particularly well suited for receiving axial forces, in an axial plane of the Rolling be arranged, in such a way as it is known from roller bearings.
  • rollers are arranged between shoulders of the bearing outer ring and the radially outer periphery of the shaft, the shoulders axially limiting the ball guide track of the bearing outer ring.
  • the balls and rollers are held in a common cage.
  • This embodiment can be supplemented by the fact that the cage is a cage closed on both sides or on one side.
  • Other practical embodiments of the invention are characterized in that the rollers and balls are arranged uniformly alternately in the rolling bearing.
  • rollers and balls are arranged unevenly alternately in the rolling bearing, wherein between a sequence of rollers whose number is 2 to 4, a ball is arranged.
  • the bearing outer ring is formed without a bord, or, alternatively, that the bearing outer ring has at least one board, which limits the rollers axially.
  • the rollers are cylindrical rollers or spherical rollers.
  • an embodiment of the invention is particularly advantageous, which is characterized in that between the axial ends of the bearing outer ring and the shaft seals are arranged.
  • FIGURE shows a sectional view through an embodiment of a rolling bearing on a water pump shaft according to the invention.
  • an embodiment of an inventive rolling bearing 1 of a spindle or shaft 2 is not shown in detail Water pump of an internal combustion engine, also not shown.
  • the shaft 2 has a first free end portion 3 and a second free end portion 4, wherein the first end portion 3 has a larger diameter than the second end portion 4.
  • the provided with the larger diameter first end portion 3 is driven, in particular by means of a belt drive, not shown in the drawing of the internal combustion engine.
  • the provided with the smaller diameter second end portion 4 is rotatably coupled to the drive of the water pump.
  • an intermediate region 5 is provided which has the same diameter as the drive-side first end section 3.
  • the intermediate region 5 of the shaft 2 is surrounded by an outer bearing outer ring 6.
  • the radially inner periphery 7 of the bearing outer ring 6 and the radially outer periphery 8 of the intermediate region 5 are each provided with opposing ball guideways 9 and 10, in which rolling elements in the form of balls 1 1 are mounted rolling, of which in the drawing only a ball 1 1 is shown.
  • the ball guide track 9 of the bearing outer ring 6 is bounded by axial shoulders 12 and 13, which define radially together with the periphery 8 of the shaft 2 rollers 14 in the form of cylindrical rollers.
  • the rollers 14, of which only one roller 14 is shown in the drawing, represent the second type of rolling elements of the rolling bearing 1 and are held together with the balls 1 1 by a common cage 15.
  • the cage 15 is a closed cage on both sides, but it can also be used on one side open cage.
  • the balls 1 1 and rollers 14 are always arranged alternately within the rolling bearing 1, so in each case one in the circumferential direction of the rolling bearing 1
  • Ball 1 1 arranged between two rollers 14 and vice versa.
  • seals 18 and 19 are provided in a conventional manner.
  • the bearing outer ring 6 is designed without a bord. However, it is also within the scope of the invention to provide one or both shoulders 12 or 13 at their respective axial end with a radially extending shelf against which the roller 14 can be axially supported.

Abstract

The invention relates to a roller bearing (1) of a water pump of an internal combustion engine with roller bodies consisting of balls (11) and rolls (14) placed between an outer bearing ring (6) and a shaft (2) of the water pump, wherein the radially inner periphery (7) of the outer bearing ring (6) and the region (5) within the outer bearing ring (6) of the radially outer periphery (8) of the shaft (2) each has a ball bearing raceway (9, 10) in which the balls (11) are arranged in rolling contact with the ball bearing raceways (9, 10). To allow a compact structure of a roller bearing of this type on a water pump shaft (2), the roller bearing (1) is constructed as a single-row rolling-ball bearing.

Description

Bezeichnung der Erfindung Name of the invention
Wälzlager einer Wasserpumpe eines VerbrennungsmotorsRolling a water pump of an internal combustion engine
Gebiet der ErfindungField of the invention
Die Erfindung bezieht sich auf ein Wälzlager einer Wasserpumpe eines Verbrennungsmotors, mit aus Kugeln und Rollen bestehenden Wälzkörpern gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a rolling bearing of a water pump of an internal combustion engine, with rolling bodies consisting of balls and rollers according to the preamble of patent claim 1.
Hintergrund der ErfindungBackground of the invention
Die zur Lagerung von Wasserpumpenwellen von Verbrennungsmotoren, beispielsweise Kraftfahrzeugmotoren, verwendeten Einbaueinheiten, welche auch als Zapfenlager bezeichnet werden, bestehen üblicherweise aus der Welle der Wasserpumpe und aus einem gemeinsamen Lageraußenring. In beide Bauteile sind in gewissem Abstand Laufbahnen für Rollkörperkränze eingearbeitet. Meist bilden ein Kugelkranz und ein Rollenkranz eine zweireihige Festlager-Loslager- Anordnung. Der Rollenkranz befindet sich als Loslager auf der durch den Rie- menzug einer Antriebsscheibe höher belasteten Seite der Wasserpumpenwelle, während der Kugelkranz zumeist als Festlager ausgebildet ist und außer der Radialkraft auch den Axialschub des Pumpenrads aufnimmt.The installation units used for the storage of water pump shafts of internal combustion engines, for example motor vehicle engines, which are also referred to as journal bearings, usually consist of the shaft of the water pump and of a common bearing outer ring. In both components raceways for rolling body rings are incorporated at a certain distance. In most cases, a ball race and a roller ring form a double-row fixed bearing floating bearing arrangement. The roller ring is located as a floating bearing on the side of the water pump shaft loaded by the Riemenzug a drive pulley higher, while the ball race is usually designed as a fixed bearing and absorbs the radial thrust and the axial thrust of the impeller.
Derartige, beispielsweise aus der DE 26 48 985 A1 , der DE 39 40 516 A1 und der JP 2004 204 891 A bekannte Wälzlager haben sich bewährt, bieten aber auch noch Raum für Verbesserungen. Insbesondere ist eine zweireihige Ausgestaltung eines derartigen Wälzlagers naturgemäß axial relativ lang, so dass ein entsprechend breiter Einbauraum zur Verfügung stehen muss, welches bei besonders kompakt konstruierten Brennkraftmaschinen nicht immer hinge- nommen werden kann. Aufgabe der ErfindungSuch, for example, from DE 26 48 985 A1, DE 39 40 516 A1 and JP 2004 204 891 A known bearings have been proven, but also offer room for improvement. In particular, a double-row embodiment of such a roller bearing is naturally relatively long axially, so that a correspondingly wide installation space must be available, which can not always be assumed in the case of particularly compactly constructed internal combustion engines. Object of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein Wälzlager einer Wasserpumpe eines Verbrennungsmotors, mit aus Kugeln und Rollen bestehenden Wälzkör- pern zu schaffen, das die Nachteile des Standes der Technik vermeidet und insbesondere kompakt aufgebaut ist, sowie die auftretenden axialen und radialen Kräfte sicher aufzunehmen vermag.The invention has for its object to provide a rolling bearing of a water pump of an internal combustion engine, which consists of balls and rollers Wälzkör- pern, which avoids the disadvantages of the prior art and in particular has a compact design, and is able to safely absorb the axial and radial forces occurring ,
Zusammenfassung der ErfindungSummary of the invention
Der Erfindung liegt die Erkenntnis zugrunde, dass sich die gestellte Aufgabe auf überraschend einfache Art und Weise dadurch lösen lässt, dass das Wälzlager der Wasserpumpenwelle als einreihiges Rollen-Kugellager ausgebildet ist.The invention is based on the finding that the stated object can be achieved in a surprisingly simple manner in that the rolling bearing of the water pump shaft is designed as a single-row roller ball bearings.
Die Erfindung geht daher aus von einem Wälzlager einer Wasserpumpe eines Verbrennungsmotors, mit aus Kugeln und Rollen bestehenden Wälzkörpern, welche zwischen einem Lageraußenring und einer Welle der Wasserpumpe angeordnet sind, wobei die radial innere Peripherie des Lageraußenrings und der innerhalb des Lageraußenrings verlaufende Bereich der radial äußeren Peripherie der Welle eine Kugelführungsbahn aufweist, in der die Kugeln in Rollkontakt mit der Kugelführungsbahn angeordnet sind. Zudem ist vorgesehen, dass das Wälzlager als einreihiges Rollen-Kugellager ausgebildet ist.The invention is therefore based on a rolling bearing of a water pump of an internal combustion engine, consisting of balls and rollers rolling elements, which are arranged between a bearing outer ring and a shaft of the water pump, wherein the radially inner periphery of the bearing outer ring and extending within the bearing outer ring portion of the radially outer Periphery of the shaft has a ball track, in which the balls are arranged in rolling contact with the ball track. In addition, it is provided that the rolling bearing is designed as a single-row roller ball bearings.
Durch diesen Aufbau wird vorteilhaft erreicht, dass das Wälzlager sehr kom- pakt, also schmal aufgebaut ist, dabei aber die auftretenden axialen und radialen Kräfte sicher aufzunehmen vermag. Durch den Aufbau mit geringer axialer Breite lässt sich nicht nur weniger Bauraum beanspruchen, es kann auch deutlich Gewicht eingespart werden, da der Lageraußenring durch die kurze Baulänge entsprechend leichtgewichtig ist.By means of this structure, it is advantageously achieved that the rolling bearing is designed to be very compact, that is to say narrow, while being able to securely absorb the axial and radial forces which occur. Due to the construction with a small axial width not only less space can be used, it can also be saved significantly weight, since the bearing outer ring is correspondingly lightweight due to the short length.
Rollen-Kugellager, also einreihige Wälzlager, bei denen abwechselnd Rollen und Kugeln zwischen einem Lagerinnenring und einem Lageraußenring angeordnet sind, sind an sich bekannt, beispielsweise durch die CH 241 985 B, der DE 1 898 225 U1 und der DE 41 42 433 C1. Die Kugeln, die auch zur Aufnahme der axialen Kräfte dienen, sind dabei in Laufrillen oder Kugelführungsbah- nen angeordnet, während die Rollen, die zur Aufnahme der radialen Kräfte dienen, auf den verbleibenden Schulterflächen der Lagerringe abrollen.Roller ball bearings, so single-row bearings, where alternately roles and balls are arranged between a bearing inner ring and a bearing outer ring, are known per se, for example by CH 241 985 B, DE 1 898 225 U1 and DE 41 42 433 C1. The balls, which also serve to absorb the axial forces, are arranged in grooves or Kugelführungsbah- NEN, while the rollers that serve to absorb the radial forces roll on the remaining shoulder surfaces of the bearing rings.
Eine Verwendung derartiger Rollen-Kugellager zur Lagerung von Wasserpumpen-Wellen ist jedoch nicht möglich, da eine derartige Anordnung neben dem Lageraußenring auch einen Lagerinnenring notwendig macht. Lagerinnenringe kommen für Wasserpumpen-Wellen jedoch nicht in Betracht, da dies zu nicht hinnehmbaren Dichtigkeitsproblemen und zu einer weiteren Beanspruchung zumindest von radialem Bauraum führen würde.However, a use of such roller ball bearings for storage of water pump waves is not possible, since such an arrangement in addition to the bearing outer ring also makes a bearing inner ring necessary. However, bearing inner rings are not considered for water pump waves, as this would lead to unacceptable leakage problems and to further stress at least of radial space.
Auf überraschend einfache Weise kombiniert die Erfindung die Vorteile der bislang bekannten Wälzlager für Wellen von Wasserpumpen dadurch, dass die Rollen, welche besonders gut radiale Kräfte aufnehmen können, und die Kugeln, welche besonders gut zur Aufnahme axialer Kräfte geeignet sind, in einer axialen Ebene des Wälzlagers angeordnet werden, und zwar derart, wie es von Rollen-Kugellagern bekannt ist.In a surprisingly simple manner, the invention combines the advantages of the previously known bearings for waves of water pumps in that the rollers, which can absorb radial forces particularly well, and the balls, which are particularly well suited for receiving axial forces, in an axial plane of the Rolling be arranged, in such a way as it is known from roller bearings.
Außerdem kann vorgesehen sein, dass die Rollen zwischen Schultern des Lageraußenrings und der radial äußeren Peripherie der Welle angeordnet sind, wobei die Schultern die Kugelführungsbahn des Lageraußenringes axial be- grenzen.In addition, it can be provided that the rollers are arranged between shoulders of the bearing outer ring and the radially outer periphery of the shaft, the shoulders axially limiting the ball guide track of the bearing outer ring.
In anderen praktischen Weiterbildungen kann vorgesehen sein, dass die Kugeln und Rollen in einem gemeinsamen Käfig gehalten sind. Diese Ausgestaltung lässt sich noch dadurch ergänzen, dass der Käfig ein beidseitig oder einseitig geschlossener Käfig ist. Andere praktische Ausgestaltungen der Erfindung zeichnen sich dadurch aus, dass die Rollen und Kugeln gleichmäßig abwechselnd im Wälzlager angeordnet sind.In other practical developments may be provided that the balls and rollers are held in a common cage. This embodiment can be supplemented by the fact that the cage is a cage closed on both sides or on one side. Other practical embodiments of the invention are characterized in that the rollers and balls are arranged uniformly alternately in the rolling bearing.
Eine alternative Ausgestaltung der Erfindung sieht vor, dass die Rollen und Kugeln ungleichmäßig abwechselnd im Wälzlager angeordnet sind, wobei zwischen einer Abfolge von Rollen, deren Anzahl 2 bis 4 beträgt, eine Kugel angeordnet ist.An alternative embodiment of the invention provides that the rollers and balls are arranged unevenly alternately in the rolling bearing, wherein between a sequence of rollers whose number is 2 to 4, a ball is arranged.
Ferner kann gemäß weiteren Ausgestaltungen vorgesehen sein, dass der Lageraußenring bordlos ausgebildet ist, oder, alternativ dazu, dass der Lageraußenring wenigstens ein Bord aufweist, welches die Rollen axial begrenzt. In einer besonders praktischen Weiterbildung der Erfindung ist vorgesehen, dass die Rollen Zylinderrollen oder Pendelrollen sind.Furthermore, it can be provided according to further embodiments, that the bearing outer ring is formed without a bord, or, alternatively, that the bearing outer ring has at least one board, which limits the rollers axially. In a particularly practical development of the invention it is provided that the rollers are cylindrical rollers or spherical rollers.
Besonders vorteilhaft ist schließlich eine Ausgestaltung der Erfindung, die sich dadurch auszeichnet, dass zwischen den axialen Enden des Lageraußenringes und der Welle Dichtungen angeordnet sind.Finally, an embodiment of the invention is particularly advantageous, which is characterized in that between the axial ends of the bearing outer ring and the shaft seals are arranged.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung wird im Folgenden anhand der beiliegenden Zeichnung näher erläutert. Darin zeigt die einzige Figur eine Schnittansicht durch ein Ausführungsbeispiel eines Wälzlagers auf einer Wasserpumpenwelle gemäß der Er- findung.The invention will be explained in more detail below with reference to the accompanying drawings. Therein, the single FIGURE shows a sectional view through an embodiment of a rolling bearing on a water pump shaft according to the invention.
Detaillierte Beschreibung der ZeichnungDetailed description of the drawing
In der Zeichnung ist demnach ein Ausführungsbeispiel eines erfindungsgemä- ßen Wälzlagers 1 einer Spindel oder Welle 2 einer nicht näher dargestellten Wasserpumpe eines ebenfalls nicht dargestellten Verbrennungsmotors dargestellt. Die Welle 2 weist einen ersten freien Endabschnitt 3 und einen zweiten freien Endabschnitt 4 auf, wobei der erste Endabschnitt 3 einen größeren Durchmesser als der zweite Endabschnitt 4 hat. Der mit dem größeren Durch- messer versehene erste Endabschnitt 3 ist antreibbar, und zwar insbesondere mittels eines in der Zeichnung nicht dargestellten Riementriebs des Verbrennungsmotors. Der mit dem kleineren Durchmesser versehene zweite Endabschnitt 4 ist mit dem Antrieb der Wasserpumpe drehfest gekoppelt.In the drawing, therefore, an embodiment of an inventive rolling bearing 1 of a spindle or shaft 2 is not shown in detail Water pump of an internal combustion engine, also not shown. The shaft 2 has a first free end portion 3 and a second free end portion 4, wherein the first end portion 3 has a larger diameter than the second end portion 4. The provided with the larger diameter first end portion 3 is driven, in particular by means of a belt drive, not shown in the drawing of the internal combustion engine. The provided with the smaller diameter second end portion 4 is rotatably coupled to the drive of the water pump.
Zwischen den beiden Endbereichen 3 und 4 der Welle 2 ist ein Zwischenbereich 5 vorgesehen, der den gleichen Durchmesser aufweist, wie der antriebs- seitige erste Endabschnitt 3. Der Zwischenbereich 5 der Welle 2 ist von einem äußeren Lageraußenring 6 umgeben. Die radial innere Peripherie 7 des Lageraußenrings 6 und die radial äußere Peripherie 8 des Zwischenbereiches 5 sind jeweils mit gegenüberliegenden Kugelführungsbahnen 9 und 10 versehen, in welchen Wälzelemente in Form von Kugeln 1 1 rollend gelagert sind, von denen in der Zeichnung nur eine Kugel 1 1 dargestellt ist.Between the two end regions 3 and 4 of the shaft 2, an intermediate region 5 is provided which has the same diameter as the drive-side first end section 3. The intermediate region 5 of the shaft 2 is surrounded by an outer bearing outer ring 6. The radially inner periphery 7 of the bearing outer ring 6 and the radially outer periphery 8 of the intermediate region 5 are each provided with opposing ball guideways 9 and 10, in which rolling elements in the form of balls 1 1 are mounted rolling, of which in the drawing only a ball 1 1 is shown.
Die Kugelführungsbahn 9 des Lageraußenringes 6 ist von axialen Schultern 12 und 13 begrenzt, welche zusammen mit der Peripherie 8 der Welle 2 Rollen 14 in Form von Zylinderrollen radial begrenzen. Anstelle von Zylinderrollen ist aber auch die Verwendung von Pendelrollen denkbar. Die Rollen 14, von denen in der Zeichnung nur eine Rolle 14 dargestellt ist, stellen die zweite Art von Wälzkörpern des Wälzlagers 1 dar und werden zusammen mit den Kugeln 1 1 von einem gemeinsamen Käfig 15 gehalten. Der Käfig 15 ist ein beidseitig geschlossener Käfig, es kann aber auch ein einseitig offener Käfig verwendet werden.The ball guide track 9 of the bearing outer ring 6 is bounded by axial shoulders 12 and 13, which define radially together with the periphery 8 of the shaft 2 rollers 14 in the form of cylindrical rollers. Instead of cylindrical rollers but also the use of spherical rollers is conceivable. The rollers 14, of which only one roller 14 is shown in the drawing, represent the second type of rolling elements of the rolling bearing 1 and are held together with the balls 1 1 by a common cage 15. The cage 15 is a closed cage on both sides, but it can also be used on one side open cage.
Die Kugeln 1 1 und Rollen 14 sind innerhalb des Wälzlagers 1 immer abwech- selnd angeordnet, also ist in Umfangsrichtung des Wälzlagers 1 jeweils eineThe balls 1 1 and rollers 14 are always arranged alternately within the rolling bearing 1, so in each case one in the circumferential direction of the rolling bearing 1
Kugel 1 1 zwischen zwei Rollen 14 angeordnet und umgekehrt. Es ist jedoch auch denkbar, andere Paarungen zu nutzen, also beispielsweise die Anordnung von drei Rollen 14, einer Kugel 1 1 , drei Rollen 14, und so weiter.Ball 1 1 arranged between two rollers 14 and vice versa. However, it is also conceivable to use other pairings, so for example the arrangement of three rollers 14, a ball 1 1, three rollers 14, and so on.
Zwischen den axialen Enden 16 und 17 des Lageraußenringes 6 und der Welle 2 sind in an sich bekannter Weise nur angedeutete Dichtungen 18 und 19 vorgesehen.Between the axial ends 16 and 17 of the bearing outer ring 6 and the shaft 2 only indicated seals 18 and 19 are provided in a conventional manner.
Der Lageraußenring 6 ist bordlos ausgeführt. Es liegt jedoch auch im Rahmen der Erfindung, eine oder beide Schultern 12 oder 13 an ihrem jeweiligen axialen Ende mit einem sich radial erstreckenden Bord zu versehen, gegen das sich die Rolle 14 axial abstützen kann. The bearing outer ring 6 is designed without a bord. However, it is also within the scope of the invention to provide one or both shoulders 12 or 13 at their respective axial end with a radially extending shelf against which the roller 14 can be axially supported.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Wälzlager1 rolling bearing
2 Welle2 wave
3 Erster Endabschnitt3 First end section
4 Zweiter Endabschnitt4 Second end section
5 Zwischenbereich5 intermediate area
6 Lageraußenring6 bearing outer ring
7 Innere Peripherie des Lageraußenringes 67 Inner periphery of the bearing outer ring 6
8 Äußere Peripherie der Welle 28 Outer periphery of the shaft 2
9 Kugelführungsbahn9 ball track
10 Kugelführungsbahn10 ball track
11 Kugel11 ball
12 Schulter12 shoulder
13 Schulter13 shoulder
14 Rolle14 roll
15 Käfig15 cage
16 Ende des Lageraußenringes 616 end of the bearing outer ring 6
17 Ende des Lageraußenringes 617 end of the bearing outer ring 6
18 Dichtung18 seal
19 Dichtung 19 seal

Claims

Patentansprüche claims
1. Wälzlager (1 ) einer Wasserpumpe eines Verbrennungsmotors, mit aus Kugeln (11 ) und Rollen (14) bestehenden Wälzkörpern, welche zwischen einem Lageraußenring (6) und einer Welle (2) der Wasserpumpe angeordnet sind, wobei die radial innere Peripherie (7) des Lageraußenrings (6) und der innerhalb des Lageraußenrings (6) verlaufende Bereich (5) der radial äußeren Peripherie (8) der Welle (2) jeweils eine Kugelführungsbahn (9, 10) aufweisen, in der die Kugeln (1 1 ) in Rollkontakt mit den Kugelführungsbahnen (9, 10) angeordnet sind, dadurch gekennzeichnet, dass das Wälzlager (1 ) als einreihiges Rollen-Kugellager ausgebildet ist.1. Rolling bearing (1) of a water pump of an internal combustion engine, consisting of balls (11) and rollers (14) rolling elements, which are arranged between a bearing outer ring (6) and a shaft (2) of the water pump, wherein the radially inner periphery (7 ) of the bearing outer ring (6) and within the bearing outer ring (6) extending region (5) of the radially outer periphery (8) of the shaft (2) each have a ball track (9, 10), in which the balls (1 1) in Roll contact with the ball guideways (9, 10) are arranged, characterized in that the rolling bearing (1) is designed as a single-row roller ball bearings.
2. Wälzlager nach Anspruch 1 , dadurch gekennzeichnet, dass die Rollen (14) zwischen Schultern (12, 13) des Lageraußenringes (6) und der radial äußeren Peripherie (8) der Welle (2) angeordnet sind, wobei die Schultern (12, 13) die Kugelführungsbahn (9) des Lageraußenringes (6) axial begrenzen.2. Rolling bearing according to claim 1, characterized in that the rollers (14) between shoulders (12, 13) of the bearing outer ring (6) and the radially outer periphery (8) of the shaft (2) are arranged, wherein the shoulders (12, 13) axially delimit the ball track (9) of the bearing outer ring (6).
3. Wälzlager nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kugeln (11 ) und Rollen (14) in einem gemeinsamen Käfig (15) gehalten sind.3. Rolling bearing according to claim 1 or 2, characterized in that the balls (11) and rollers (14) are held in a common cage (15).
4. Wälzlager nach Anspruch 3, dadurch gekennzeichnet, dass der Käfig (15) ein beidseitig oder einseitig geschlossener Käfig (15) ist.4. Rolling bearing according to claim 3, characterized in that the cage (15) is a double-sided or one-sided closed cage (15).
5. Wälzlager zumindest nach Anspruch 1 , dadurch gekennzeichnet, dass die Rollen (14) und Kugeln (1 1 ) gleichmäßig abwechselnd im Wälzlager (1 ) angeordnet sind.5. Rolling bearing at least according to claim 1, characterized in that the rollers (14) and balls (1 1) are arranged uniformly alternately in the rolling bearing (1).
6. Wälzlager nach zumindest einem der Ansprüche 1 bis 4, dadurch ge- kennzeichnet, dass die Rollen (14) und Kugeln (1 1 ) ungleichmäßig abwechselnd im Wälzlager (1 ) angeordnet sind, wobei zwischen einer Abfolge von Rollen (14), deren Anzahl 2 bis 4 beträgt, eine Kugel (1 1 ) angeordnet ist.6. rolling bearing according to at least one of claims 1 to 4, characterized indicates that the rollers (14) and balls (1 1) are arranged unevenly alternately in the rolling bearing (1), wherein between a sequence of rollers (14) whose number is 2 to 4, a ball (1 1) is arranged.
7. Wälzlager zumindest nach Anspruch 1 , dadurch gekennzeichnet, dass der Lageraußenring (6) bordlos ausgebildet ist.7. Rolling bearing at least according to claim 1, characterized in that the bearing outer ring (6) is formed without a bord.
8. Wälzlager nach zumindest einem der Ansprüche 1 bis 6, dadurch ge- kennzeichnet, dass der Lageraußenring (6) wenigstens ein Bord aufweist, welches die Rollen (14) axial begrenzt.8. Rolling bearing according to at least one of claims 1 to 6, character- ized in that the bearing outer ring (6) has at least one board which axially delimits the rollers (14).
9. Wälzlager zumindest nach Anspruch 1 , dadurch gekennzeichnet, dass die Rollen (14) Zylinderrollen oder Pendelrollen sind.9. rolling bearing at least according to claim 1, characterized in that the rollers (14) are cylindrical rollers or spherical rollers.
10. Wälzlager zumindest nach Anspruch 1 , dadurch gekennzeichnet, dass zwischen den axialen Enden (16, 17) des Lageraußenringes (6) und der Welle (2) Dichtungen (18, 19) angeordnet sind. 10. Rolling bearing at least according to claim 1, characterized in that between the axial ends (16, 17) of the bearing outer ring (6) and the shaft (2) seals (18, 19) are arranged.
PCT/EP2007/053974 2006-05-03 2007-04-24 Roller bearing of a water pump of an internal combustion engine WO2007125056A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0711164-9A BRPI0711164A2 (en) 2006-05-03 2007-04-24 bearings of a combustion engine water pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006020412A DE102006020412A1 (en) 2006-05-03 2006-05-03 Rolling a water pump of an internal combustion engine
DE102006020412.3 2006-05-03

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BR (1) BRPI0711164A2 (en)
DE (1) DE102006020412A1 (en)
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DE102014107681A1 (en) * 2014-06-02 2015-12-03 Robert Bosch Automotive Steering Gmbh MOTOR VEHICLE STEERING WITH AT LEAST ONE BASED WAVE ASSEMBLY
CN104454974A (en) * 2014-12-15 2015-03-25 叶雪峰 Small rolling ball and needle roller bearing
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CN201262155Y (en) 2009-06-24
BRPI0711164A2 (en) 2011-08-23

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