WO2017207281A1 - Bearing assembly, in particular for a rolling bearing assembly - Google Patents

Bearing assembly, in particular for a rolling bearing assembly Download PDF

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Publication number
WO2017207281A1
WO2017207281A1 PCT/EP2017/061906 EP2017061906W WO2017207281A1 WO 2017207281 A1 WO2017207281 A1 WO 2017207281A1 EP 2017061906 W EP2017061906 W EP 2017061906W WO 2017207281 A1 WO2017207281 A1 WO 2017207281A1
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WO
WIPO (PCT)
Prior art keywords
bearing assembly
bearing
radially
rolling
outer ring
Prior art date
Application number
PCT/EP2017/061906
Other languages
German (de)
French (fr)
Inventor
Jürgen Balz
Jürgen Bauer
Pejman BIJANZADEH
Marco FROSCHAUER
Stefan Heinz
Hans-Ulrich Vogler
Patrick Walter
Michael Weidenweber
Thomas Winkler
Original Assignee
Continental Teves Ag & Co. Ohg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Teves Ag & Co. Ohg filed Critical Continental Teves Ag & Co. Ohg
Publication of WO2017207281A1 publication Critical patent/WO2017207281A1/en

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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
    • F16C19/02—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
    • 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
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • 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
    • F16C35/067—Fixing them in a 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/52—Positive connections with plastic deformation, e.g. caulking or staking
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/76—Positive connections with complementary interlocking parts with tongue and groove or key and slot

Definitions

  • the invention relates to a bearing assembly as in particular a rolling bearing assembly according to the preamble of claim 1.
  • the bearing assembly comprises at least one metallic bearing outer ring radially outside a cylindrical surface and radially inside at least one raceway and preferably with a bearing inner ring radially outward over at least one career and in Warehouse center over one
  • Receiving bore has, as well as means for fixing of the lateral surface in a stepped bore of a recording.
  • Bearing assemblies such as in particular rolling bearing assemblies have in view of the required space, the type of attachment, the complex bearing stress and precision for the storage of machine parts is of central importance. After bearing races can train tracks, for example, for highly accurate inserted rolling elements, their fixation requires compliance with the closest fitting tolerances, which with correspondingly high
  • the known rolling bearing assemblies have a
  • Bearing outer ring of given width and diameter which is fixed with a radially outer circumferential surface in a seat of a receptacle.
  • the bearing outer race is axially inserted into a stepped bore and is seated rearward with a shoulder on a bore step.
  • the bearing outer ring also has radially inward over at least one raceway for inserted rolling elements, which in turn can roll radially inwardly on at least one raceway of a bearing inner ring, as far as the rolling elements do not directly sit directly on the circumference of a centrally arranged axle or shaft.
  • the bearing rings can be provided with additional means for fixing. For example, this involves a press fit to the adjacent component (housing, receptacle, shaft). Wälz stresses stresses are additionally possible.
  • the object is achieved in that at least one directed radially directed toward the bearing center projection of the recording / stepped bore in axially directed Projection the outer surface of the bearing outer ring overlaps positively.
  • the invention provides, as it were, that the material of the receiving body with its projection for the purpose of fixation on or in the bearing outer ring engages positively. This allows a particularly efficient secured fixation of the bearing outer ring.
  • the further embodiments of the invention relate to variants which provide an automotive customer with the simplest and cheapest design yet the added value of a particularly high quality stock, ie smoothness, as is otherwise possible only by the highest precision at high cost.
  • a first embodiment of the invention it is therefore provided that the lateral surface of the metallic bearing ring is shortened cylindrical and in relation to the associated bearing seat with graduated receiving bore in plastic material and fixed under press fit in the Kunststoffaufnähme such that the projection at the free end of the bearing seat a front page Bearing outer ring laterally to radially inward pointing positively engages over.
  • the lateral grip on the free end of the recording causes a precise, defined and at the same time smoothly damped elastic bearing clamping.
  • This variant is recommended by the fact that the seat with a formschlüssig attacking projection easily accessible, so the fixation can be optically controlled.
  • a profiling in particular axially directed grooves, preferably with regular pitch, provided on the circumference of the components of the bearing assembly.
  • said profiling so the grooves, be equally arranged on the periphery of the stepped bore and / or on the lateral surface of the bearing outer ring.
  • a second embodiment of the invention is that the lateral surface of the metallic bearing outer ring has a circumferential annular groove, and wherein the bearing outer ring under interference fit with a cylindrical bearing seat of the receptacle cooperates such that the bearing seat with a radially directed projection in the form-fitting manner Ring groove engages.
  • the projection is space-saving and outside the field of view, protected, arranged.
  • a preferred embodiment of the above variant is provided for the purpose of balanced, so centric load attack that the annular groove radially aligned with the track, as in particular in a common radial alignment with the rolling radius of the rolling elements, about the axis of rotation is arranged.
  • even axial thrust is removed evenly from the bearing outer ring to the receptacle, or vice versa.
  • FIG. 1 is a sectional view of the individual components of a bearing assembly with annular groove according to the first embodiment prior to assembly
  • FIG. 2 is a sectional view of the bearing assembly with an annular groove immediately after pressing from the bearing outer ring
  • FIG. 3 shows the bearing assembly of the first embodiment ( Figures 1 and 2) in use
  • Fig. 4 shows a detail in Fig. 3 to illustrate the mutual positive connection between radially inwardly directed projection of the stepped bore and the annular groove in the bearing outer ring
  • Fig. 5 second embodiment of the bearing assembly with frontally placed projection in section
  • the bearing assembly 1 in the embodiment as a rolling bearing assembly comprises bearing outer ring 2 with lateral surface 3, bearing inner ring 5 with central receiving bore 7, and between two raceways 4,6 inserted rolling elements 15 with special measures for the purpose of fixing the bearing outer ring 2 in a stepped bore 8 are provided by a receptacle 9 ,
  • the lateral surface 3 has a peripheral open annular groove 13 into which a projection 11 directed radially inwards in the direction of the bearing center Z engages in a form-fitting manner from the receptacle 9 for fixing.
  • the projection 11 is preferably but not necessarily designed as a circumferential annular bead 16, which flows into the annular groove 13.
  • the material flow process may, given its use, be of a particular thermoplastic type Plastic material for the recording 9 (gear housing) by adjusting or changing the physical parameters time and temperature controlled so changed as desired in particular to be accelerated. Regardless, of course, a mechanical embossing process can be provided for support.
  • FIGS. 5 and 6 differ in terms of the laterally visible placement from the projection 11 and the depth T of the stepped bore 8 is longer than the length L of the bearing outer ring 2
  • Embodiments hold that the bearing outer ring 2 is firmly seated with its shoulder 10 at a bore stage of the stepped bore 8 and that, moreover, any combinations of features between the two embodiments are possible.
  • the drawing illustrates only rolling bearings, it is also possible to advantageously transfer the invention to plain bearings.

Abstract

The invention relates to a bearing assembly, such as in particular a rolling bearing assembly, having: at least one metallic outer bearing ring comprising a cylindrical lateral surface radially on the outside and at least one raceway radially on the inside; preferably an inner bearing ring, which has at least one raceway radially on the outside and a receiving bore in the bearing centre; and means for fixing the lateral surface in a stepped bore of a seat. According to the invention, to simplify fixing of the bearing in the seat, at least one protrusion, directed radially towards the bearing centre, of the stepped bore fits interlockingly over the lateral surface of the outer bearing ring when viewed in the axial direction.

Description

LAGERBAUGRUPPE INSBESONDERE FÜR EINE WÄLZLAGERBAUGRUPPE  BEARING ASSEMBLY, PARTICULARLY FOR A ROLLER BEARING ASSEMBLY GROUP
Die Erfindung betrifft eine Lagerbaugruppe wie insbesondere eine Wälzlagerbaugruppe gemäß dem Oberbegriff des Patentanspruchs 1. Die Lagerbaugruppe umfasst wenigstens einen metallischen Lageraußenring der radial außen eine zylindrische Mantelfläche und radial innen wenigstens eine Laufbahn aufweist und mit vorzugsweise einem Lagerinnenring der radial außen über wenigstens eine Laufbahn und im Lagerzentrum über eine The invention relates to a bearing assembly as in particular a rolling bearing assembly according to the preamble of claim 1. The bearing assembly comprises at least one metallic bearing outer ring radially outside a cylindrical surface and radially inside at least one raceway and preferably with a bearing inner ring radially outward over at least one career and in Warehouse center over one
Aufnahmebohrung verfügt, sowie mit Mitteln zur Fixierung von der Mantelfläche in einer Stufenbohrung von einer Aufnahme. Receiving bore has, as well as means for fixing of the lateral surface in a stepped bore of a recording.
Lagerbaugruppen wie insbesondere Wälzlagerbaugruppen haben im Hinblick auf den benötigten Bauraum, die Art der Befestigung, der komplexen Lagerbeanspruchung und Präzision für die Lagerung von Maschinenteilen eine zentrale Bedeutung. Nachdem Lagerringe Laufbahnen, beispielsweise für hochgenau eingefügte Wälzkörper, ausbilden können, erfordert deren Fixierung die Einhaltung engster Passungstoleranzen, was mit entsprechend hohen Bearing assemblies such as in particular rolling bearing assemblies have in view of the required space, the type of attachment, the complex bearing stress and precision for the storage of machine parts is of central importance. After bearing races can train tracks, for example, for highly accurate inserted rolling elements, their fixation requires compliance with the closest fitting tolerances, which with correspondingly high
Fertigungskosten auch für die angrenzenden Komponenten verbunden ist. Dies gilt sowohl für statisch beanspruchte Lager wie auch für die dynamisch beanspruchten Lagerbaugruppen die Manufacturing costs also connected to the adjacent components. This applies both to statically stressed bearings and to dynamically stressed bearing assemblies
unterschiedlich ausgeprägte Querkraft-lastfalle, also Punkt¬ oder Umfangslast infolge rotierende Bauteile, aufweisen können. Zudem müssen vielfach überlagerte Axialschubbeanspruchungen abgetragen werden. different pronounced shear force load case, so point ¬ or circumferential load due to rotating components may have. In addition, often superimposed axial thrust loads must be removed.
Die bekannten Wälzlagerbaugruppen verfügen über einen The known rolling bearing assemblies have a
Lageraußenring mit gegebener Breite und Durchmesser der mit einer radial äußeren Mantelfläche in einem Sitz von einer Aufnahme fixiert ist. Üblicherweise ist der Lageraußenring axial in eine Stufenbohrung eingeführt und sitzt rückwärtig mit einer Schulter auf einer Bohrungsstufe auf. Der Lageraußenring verfügt zudem radial innen über wenigstens eine Laufbahn für eingefügte Wälzkörper, welche ihrerseits radial innen zumeist auf wenigstens einer Laufbahn eines Lagerinnenrings abwälzen können, soweit die Wälzkörper nicht unmittelbar direkt auf dem Umfang von einer zentral arrangierten Achse oder Welle aufsitzen. Die Lagerringe können mit zusätzlichen Mitteln zur Fixierung versehen sein. Beispielsweise handelt es sich dabei um eine Presspassung zum benachbarten Bauteil (Gehäuse, Aufnahme, Welle) . Wälzkörperkäfige wie auch Dichtungsmittel sind zusätzlich möglich. Bearing outer ring of given width and diameter which is fixed with a radially outer circumferential surface in a seat of a receptacle. Typically, the bearing outer race is axially inserted into a stepped bore and is seated rearward with a shoulder on a bore step. The bearing outer ring also has radially inward over at least one raceway for inserted rolling elements, which in turn can roll radially inwardly on at least one raceway of a bearing inner ring, as far as the rolling elements do not directly sit directly on the circumference of a centrally arranged axle or shaft. The bearing rings can be provided with additional means for fixing. For example, this involves a press fit to the adjacent component (housing, receptacle, shaft). Wälzkörperkäfige as well as sealants are additionally possible.
Nach der DE 10 2013 218 119 AI von der Anmelderin wird eine drehfeste Fixierung vom Lageraußenring empfohlen , wobei dieser entlang seines Außenumfangs mit wenigstens einem According to DE 10 2013 218 119 AI by the applicant, a rotationally fixed fixation is recommended by the bearing outer ring, which along its outer periphery with at least one
selbstfurchenden Gewinde versehen ist, das unter Einwirkung einer Axialkraft auf den Lageraußenring bei gleichzeitiger Rotation des Lageraußenrings in definierter Tiefe in der Bohrung des Aufnahmegehäuses fixierbar ist, und wobei das is provided self-tapping thread, which is fixed under the action of an axial force on the bearing outer ring with simultaneous rotation of the bearing outer ring in a defined depth in the bore of the receiving housing, and wherein the
Aufnahmegehäuse zur Vermeidung von Spanbildung aus einem plastisch verformbaren Werkstoff hergestellt ist. Unter dem gegebenen Kostendruck in der Automobilzulieferindustrie ist jedoch für bestimmte Anwendungsfälle eine variable, alternative, gewindefreie Lagerfixierung wünschenswert. Daher ist es eine Aufgabe der Erfindung, eine Wälzlagerbaugruppe dahingehend zu verbessern, dass bei rationalisiertem Aufwand eine einfache, funktionssichere Fixierung ermöglicht ist, die sich im besonderen durch eine simplifizierte Herstellung der Wälzlagerkomponenten bei uneingeschränkt großzügig Recording housing to avoid chip formation is made of a plastically deformable material. However, given the cost pressures in the automotive supply industry, variable, alternative, unthreaded bearing fixation is desirable for certain applications. Therefore, it is an object of the invention to improve a rolling bearing assembly to the effect that at a rationalized effort a simple, functionally reliable fixation is possible, which in particular by a simplification of the rolling bearing components in unrestricted generous
tolerierbarer Passung im Aufnahmegehäuse auszeichnet. Tolerable fit in the housing housing distinguished.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass wenigstens ein radial in Richtung Lagerzentrum gerichtet vorgesehener Vorsprung von der Aufnahme/Stufenbohrung in axial gerichteter Projektion die Mantelfläche vom Lageraußenring formschlüssig übergreift. Mit anderen Worten sieht die Erfindung gewissermaßen vor, dass der Werkstoff vom Aufnahmekörper mit seinem Vorsprung zwecks Fixierung am oder im Lageraußenring formschlüssig angreift. Dadurch wird eine besonders rationell gesicherte Fixierung vom Lageraußenring ermöglicht. The object is achieved in that at least one directed radially directed toward the bearing center projection of the recording / stepped bore in axially directed Projection the outer surface of the bearing outer ring overlaps positively. In other words, the invention provides, as it were, that the material of the receiving body with its projection for the purpose of fixation on or in the bearing outer ring engages positively. This allows a particularly efficient secured fixation of the bearing outer ring.
Die weiteren Ausgestaltungen der Erfindung betreffen Varianten, welche einem Automobilkunden bei einfachster und günstigster Gestaltung dennoch den Mehrwert einer besonders hochwertigen Lagergüte, also Laufruhe, verschaffen, wie dies sonst nur durch allerhöchste Präzision bei hohen Kosten ermöglicht wird. Gemäß einer ersten Ausgestaltung der Erfindung ist daher vorgesehen, dass die Mantelfläche vom metallischen Lagerring zylindrisch sowie in Relation zum zugeordneten Lagersitz mit abgestufter Aufnahmebohrung in KunststoffWerkstoff verkürzt sowie unter Presspassung in der Kunststoffaufnähme derart fixiert ist, dass der Vorsprung am freien Ende vom Lagersitz eine Stirnseite vom Lageraußenring lateral nach radial innen weisend formschlüssig übergreift. Der laterale Übergriff am freien Ende von der Aufnahme bewirkt eine präzise, definierte und gleichzeitig laufruhig gedämpfte elastische Lagereinspannung. Diese Variante empfiehlt sich, dadurch, dass der Sitz mit formschlüssig angreifendem Vorsprung gut zugänglich, also die Fixierung optisch erkennbar kontrolliert werden kann. The further embodiments of the invention relate to variants which provide an automotive customer with the simplest and cheapest design yet the added value of a particularly high quality stock, ie smoothness, as is otherwise possible only by the highest precision at high cost. According to a first embodiment of the invention it is therefore provided that the lateral surface of the metallic bearing ring is shortened cylindrical and in relation to the associated bearing seat with graduated receiving bore in plastic material and fixed under press fit in the Kunststoffaufnähme such that the projection at the free end of the bearing seat a front page Bearing outer ring laterally to radially inward pointing positively engages over. The lateral grip on the free end of the recording causes a precise, defined and at the same time smoothly damped elastic bearing clamping. This variant is recommended by the fact that the seat with a formschlüssig attacking projection easily accessible, so the fixation can be optically controlled.
Zur Verstärkung vom plastischen Werkstofffließen ist bei allen Ausführungsformen möglich, eine Profilierung, wie insbesondere axial gerichtete Nuten, mit vorzugsweise regelmäßer Teilung, am Umfang der Komponenten von der Lagerbaugruppe vorzusehen. Dabei kann die besagte Profilierung, also die Nuten, gleichermaßen am Umfang von der Stufenbohrung und/oder an der Mantelfläche vom Lageraußenring arrangiert sein. Eine zweite Ausgestaltung von der Erfindung besteht darin, dass die Mantelfläche vom metallischen Lageraußenring über eine umlaufende Ringnut verfügt, und wobei der Lageraußen-ring unter Presspassung mit einem zylindrischen Lagersitz von der Aufnahme derart kooperiert, dass der Lagersitz mit einem radial gerichteten Vorsprung formschlüssig in die Ringnut eingreift. Demzufolge ist der Vorsprung platzsparend und außerhalb vom Sichtbereich, geschützt, arrangiert. In bevorzugter Ausgestaltung von der vorstehenden Variante ist zwecks ausgeglichenem, also zentrischem Lastangriff vorgesehen, dass die Ringnut radial fluchtend mit der Laufbahn, wie insbesondere in einer gemeinsamen radialen Flucht mit dem Rollradius von den Wälzkörpern, um deren Drehachse, arrangiert ist. Demzufolge wird auch Axialschub gleichmäßig sowie kippmomentenfrei vom Lageraußenring auf die Aufnahme abgetragen, beziehungsweise umgekehrt. To reinforce the plastic material flow is possible in all embodiments, a profiling, in particular axially directed grooves, preferably with regular pitch, provided on the circumference of the components of the bearing assembly. In this case, said profiling, so the grooves, be equally arranged on the periphery of the stepped bore and / or on the lateral surface of the bearing outer ring. A second embodiment of the invention is that the lateral surface of the metallic bearing outer ring has a circumferential annular groove, and wherein the bearing outer ring under interference fit with a cylindrical bearing seat of the receptacle cooperates such that the bearing seat with a radially directed projection in the form-fitting manner Ring groove engages. As a result, the projection is space-saving and outside the field of view, protected, arranged. In a preferred embodiment of the above variant is provided for the purpose of balanced, so centric load attack that the annular groove radially aligned with the track, as in particular in a common radial alignment with the rolling radius of the rolling elements, about the axis of rotation is arranged. As a result, even axial thrust is removed evenly from the bearing outer ring to the receptacle, or vice versa.
Es versteht sich schließlich, dass die beiden beschriebenen Ausführungsformen mit den beschriebenen Ausgestaltungen in beliebiger Merkmalskombination gewissermaßen nebeneinander an einer Lagerbaugruppe gemeinsam verkörpert vorliegen können, um eine Lagerfixierung beispielsweise besonders abgesichert zu gestalten, ohne die Erfindung zu verlassen. It goes without saying that the two embodiments described with the embodiments described can be embodied together in any combination of features, so to speak, side by side on a bearing assembly in order to make a bearing fixation particularly secure, for example, without departing from the invention.
Weitere Merkmale, Vorteile, Einzelheiten sowie Wirkungen der Erfindung gehen im nachfolgenden aus der Beschreibung der Ausführungsformen anhand mehrerer Zeichnungen hervor. In der schematisch sowie zwecks Verdeutlichung vergrößert ausgeführten Zeichnung zeigt: Fig. 1 Schnittdarstellung der einzelnen Komponenten einer Lagerbaugruppe mit Ringnut gemäß erster Ausführungsform vor der Montage, Fig. 2 Schnittdarstellung der Lagerbaugruppe mit Ringnut zeitlich unmittelbar nach dem Einpressen vom Lageraußenring, Further features, advantages, details and effects of the invention will become apparent hereinafter from the description of the embodiments with reference to several drawings. In the drawing, shown schematically and enlarged for clarity, shows: 1 is a sectional view of the individual components of a bearing assembly with annular groove according to the first embodiment prior to assembly, Fig. 2 is a sectional view of the bearing assembly with an annular groove immediately after pressing from the bearing outer ring,
Fig. 3 die Lagerbaugruppe der ersten Ausführungsform (Fig. 1 + 2) im Gebrauch, 3 shows the bearing assembly of the first embodiment (Figures 1 and 2) in use,
Fig. 4 eine Einzelheit in Fig. 3 zur Verdeutlichung vom gegenseitigen Formschluss zwischen radial einwärts gerichtetem Vorsprung der Stufenbohrung und der Ringnut im Lageraußenring, Fig. 5 zweite Ausführungsform der Lagerbaugruppe mit stirnseitig platziertem Vorsprung im Schnitt, und Fig. 4 shows a detail in Fig. 3 to illustrate the mutual positive connection between radially inwardly directed projection of the stepped bore and the annular groove in the bearing outer ring, Fig. 5 second embodiment of the bearing assembly with frontally placed projection in section, and
Fig. 6 vergrößerte Einzelheit in Fig. 5. Die Fig. 1-4 zeigen die Komponenten und auch unterschiedliche Stadien einer Montage und werden nachstehend kursorisch gemeinsam beschrieben . Die Lagerbaugruppe 1 in der Ausgestaltung als Wälzlageranordnung umfasst Lageraußenring 2 mit Mantelfläche 3, Lagerinnenring 5 mit zentraler Aufnahmebohrung 7, und zwischen zwei Laufbahnen 4,6 eingefügte Wälzkörper 15 wobei besondere Maßnahmen zwecks Fixierung vom Lageraußenring 2 in einer Stufenbohrung 8 von einer Aufnahme 9 vorgesehen sind. Die Mantelfläche 3 verfügt über eine umlaufende offene Ringnut 13 in die ein radial einwärts in Richtung Lagerzentrum Z gerichteter Vorsprung 11 von der Aufnahme 9 zur Fixierung formschlüssig eingreift. Dabei ist der Vorsprung 11 bevorzugt aber nicht zwingend als umlaufender Ringwulst 16 ausgebildet, welcher in die Ringnut 13 hineinfließt. Der Werkstofffließprozess kann bei gegebener Verwendung von einem bestimmten thermoplastischem Kunststoffwerkstoff für die Aufnahme 9 (Getriebegehäuse) durch Anpassung bzw. Änderung der physikalischen Parameter Zeit und Temperatur gesteuert also nach Wunsch verändert wie insbesondere beschleunigt werden. Unabhängig davon kann natürlich auch ein mechanischer Einprägevorgang zur Unterstützung vorgesehen werden . Fig. 6 shows enlarged detail in Fig. 5. Figs. 1-4 show the components and also different stages of assembly and will be described below together cursorily. The bearing assembly 1 in the embodiment as a rolling bearing assembly comprises bearing outer ring 2 with lateral surface 3, bearing inner ring 5 with central receiving bore 7, and between two raceways 4,6 inserted rolling elements 15 with special measures for the purpose of fixing the bearing outer ring 2 in a stepped bore 8 are provided by a receptacle 9 , The lateral surface 3 has a peripheral open annular groove 13 into which a projection 11 directed radially inwards in the direction of the bearing center Z engages in a form-fitting manner from the receptacle 9 for fixing. In this case, the projection 11 is preferably but not necessarily designed as a circumferential annular bead 16, which flows into the annular groove 13. The material flow process may, given its use, be of a particular thermoplastic type Plastic material for the recording 9 (gear housing) by adjusting or changing the physical parameters time and temperature controlled so changed as desired in particular to be accelerated. Regardless, of course, a mechanical embossing process can be provided for support.
Die Ausführungsformen nach den Figuren 5 + 6 unterscheiden sich durch die lateral seitlich sichtbare Platzierung vom Vorsprung 11 und wobei die Tiefe T der Stufenbohrung 8 länger dimensioniert ist als die Länge L vom Lageraußenring 2. Für sämtliche The embodiments according to FIGS. 5 and 6 differ in terms of the laterally visible placement from the projection 11 and the depth T of the stepped bore 8 is longer than the length L of the bearing outer ring 2
Ausführungsformen gilt, dass der Lageraußenring 2 mit seiner Schulter 10 an einer Bohrungsstufe der Stufenbohrung 8 fest aufsitzt und dass im Übrigen beliebige Merkmalskombinationen zwischen den beiden Ausführungsformen möglich sind. Obwohl die Zeichnung ausschließlich Wälzlager verdeutlich, ist es zudem möglich die Erfindung vorteilhaft auf Gleitlager zu übertragen. Embodiments hold that the bearing outer ring 2 is firmly seated with its shoulder 10 at a bore stage of the stepped bore 8 and that, moreover, any combinations of features between the two embodiments are possible. Although the drawing illustrates only rolling bearings, it is also possible to advantageously transfer the invention to plain bearings.
Ax Axialrichtung Ax axial direction
D Lager (Nenn) Durchmesser D bearing (nominal) diameter
R Radialrichtung R radial direction
T Tiefe  T depth
L Länge  L length
Z Lagerzentrum  Z warehouse center

Claims

Patentansprüche Patent claims
1. Lagerbaugruppe (1), wie insbesondere Wälzlagerbaugruppe, mit wenigstens einem metallischen Lageraußenring (2) umfassend radial außen eine zylindrische Mantelfläche (3) und radial innen wenigstens eine Laufbahn (4) und mit vorzugsweise einem 1. Bearing assembly (1), in particular a rolling bearing assembly, with at least one metallic bearing outer ring (2) comprising a cylindrical lateral surface (3) radially on the outside and at least one raceway (4) radially on the inside and preferably with one
Lagerinnenring (5) der radial außen über wenigstens eine Laufbahn (6) und im Lagerzentrum Z über eine Aufnahmebohrung (7) verfügt, sowie mit Mitteln zur Fixierung von der Mantelfläche (3) in einer Stufenbohrung (8) von einer Aufnahme (9), dadurch Bearing inner ring (5) which has at least one raceway (6) radially on the outside and a receiving bore (7) in the bearing center Z, as well as means for fixing the lateral surface (3) in a stepped bore (8) of a receptacle (9), through this
gekennzeichnet, dass wenigstens ein radial zum Lagerzentrum Z gerichteter Vorsprung (11) von der Stufenbohrung (8) in axial gerichtet vorgesehener Projektion die Mantelfläche (3) vom Lageraußenring (2) form-schlüssig übergreift. characterized in that at least one projection (11) directed radially towards the bearing center Z from the stepped bore (8) in an axially directed projection positively engages over the lateral surface (3) of the bearing outer ring (2).
2. Lagerbaugruppe (1) , wie insbesondere Wälzlagerbaugruppe nach Anspruch 1, dadurch gekennzeichnet, dass eine Länge L der Mantelfläche (3) kürzer als eine Tiefe T der Stufenbohrung (8) ausgeführt ist, dass die Aufnahme (9) begrenzt radialelastisch ausgebildet ist, und wobei der Lageraußenring (2) unter 2. Bearing assembly (1), in particular the rolling bearing assembly according to claim 1, characterized in that a length L of the lateral surface (3) is shorter than a depth T of the stepped bore (8), that the receptacle (9) is designed to have limited radial elasticity, and the bearing outer ring (2) underneath
Presspassung in der Aufnahme (9) so fixiert ist, dass ein freies Ende von der Stufenbohrung (8) mit einem lateral sowie radial zum Lagerzentrum Z ausgeprägten Vorsprung (11) eine Stirnseite (12) vom Lageraußenring (2) formschlüssig übergreift. Press fit in the receptacle (9) is fixed in such a way that a free end of the stepped bore (8) with a projection (11) which is pronounced laterally and radially to the bearing center Z positively engages over an end face (12) of the bearing outer ring (2).
3. Lagerbaugruppe (1) , wie insbesondere Wälzlagerbaugruppe, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Aufnahme (9) begrenzt radialelastisch ausgebildet ist, und wobei die Mantelfläche (3) mit einer umlaufenden Ringnut (13) unter Presspassung in der Stufenbohrung (8) so fixiert ist, dass die Stufenbohrung (8) mit einem radial zum Lagerzentrum Z 3. Bearing assembly (1), in particular a rolling bearing assembly, according to claim 1 or 2, characterized in that the receptacle (9) is designed to have limited radial elasticity, and the lateral surface (3) has a circumferential annular groove (13) with a press fit in the stepped bore (8) is fixed in such a way that the stepped bore (8) is aligned radially to the bearing center Z
ausgeprägten Vorsprung (11) formschlüssig in die Ringnut (13) eingreift . pronounced projection (11) engages positively in the annular groove (13).
4. Lagerbaugruppe (1), wie insbesondere Wälzlagerbaugruppe, nach Anspruch 3, dadurch gekennzeichnet, dass die Ringnut (13) radial fluchtend mit der Laufbahn (4,6) wie insbesondere in einer gemeinsamen radialen Flucht mit einem Rollradius von Wälzkörpern (14) um deren Drehachse, arrangiert ist. 4. Bearing assembly (1), such as in particular rolling bearing assembly, according to claim 3, characterized in that the annular groove (13) is radially aligned with the raceway (4,6) such as in particular in a common radial alignment with a rolling radius of rolling elements (14). whose axis of rotation is arranged.
5. Lagerbaugruppe (1), wie insbesondere Wälzlagerbaugruppe, nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Vorsprung (11) als Ringwulst (16) ausgeführt ist. 5. Bearing assembly (1), such as in particular rolling bearing assembly, according to claim 3 or 4, characterized in that the projection (11) is designed as an annular bead (16).
6. Lagerbaugruppe (1), wie insbesondere Wälzlagerbaugruppe, nach einem oder mehreren der Ansprüche 1-5, dadurch gekennzeichnet, dass am Umfang zwischen benachbarten Komponenten eine 6. Bearing assembly (1), such as in particular rolling bearing assembly, according to one or more of claims 1-5, characterized in that on the circumference between adjacent components
Profilierung, wie insbesondere axial gerichtete Nuten, mit vorzugsweise regelmäßer Teilung, vorgesehen sind. Profiling, such as in particular axially directed grooves, preferably with regular pitch, are provided.
7. Lagerbaugruppe (1), wie insbesondere Wälzlagerbaugruppe, nach Anspruch 6, dadurch gekennzeichnet, dass die Profilierung am Umfang von der Stufenbohrung (8) und/oder an der Mantelfläche (3) vom Lageraußenring (2) vorgesehen ist. 7. Bearing assembly (1), such as in particular a rolling bearing assembly, according to claim 6, characterized in that the profiling is provided on the circumference of the stepped bore (8) and / or on the lateral surface (3) of the bearing outer ring (2).
8. Lagerbaugruppe (1) nach einem oder mehreren der Ansprüche 1-7, dadurch gekennzeichnet, dass der Lageraußenring (2) Wälzkörper (14) aufnimmt. 8. Bearing assembly (1) according to one or more of claims 1-7, characterized in that the bearing outer ring (2) receives rolling elements (14).
9. Lagerbaugruppe (1) nach einem oder mehreren der Ansprüche 1-8, gekennzeichnet durch variierte Lagerbaugruppenausgestaltung unter beliebiger Merkmalskombination, wie insbesondere unter Teilmerkmalskombination, aus einem oder mehreren der 9. Bearing assembly (1) according to one or more of claims 1-8, characterized by varied bearing assembly design under any combination of features, such as in particular under sub-feature combinations, from one or more of the
vorstehenden Ansprüche. above claims.
PCT/EP2017/061906 2016-06-03 2017-05-18 Bearing assembly, in particular for a rolling bearing assembly WO2017207281A1 (en)

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DE102016209785.7A DE102016209785A1 (en) 2016-06-03 2016-06-03 Bearing assembly, in particular for an electromotive actuator

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CN112639328A (en) * 2018-08-30 2021-04-09 舍弗勒技术股份两合公司 Balance shaft
US11280384B2 (en) 2018-08-30 2022-03-22 Schaeffler Technologies AG & Co. KG Balance shaft assembly

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DE102019101321A1 (en) * 2018-08-30 2020-03-05 Schaeffler Technologies AG & Co. KG Balance shaft
DE102019101320A1 (en) * 2018-08-30 2020-03-05 Schaeffler Technologies AG & Co. KG Balance shaft

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