WO2009049956A1 - Ensemble de paliers destiné à supporter des charges radiales et axiales - Google Patents

Ensemble de paliers destiné à supporter des charges radiales et axiales Download PDF

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Publication number
WO2009049956A1
WO2009049956A1 PCT/EP2008/061532 EP2008061532W WO2009049956A1 WO 2009049956 A1 WO2009049956 A1 WO 2009049956A1 EP 2008061532 W EP2008061532 W EP 2008061532W WO 2009049956 A1 WO2009049956 A1 WO 2009049956A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
radial
axial
arrangement according
profiles
Prior art date
Application number
PCT/EP2008/061532
Other languages
German (de)
English (en)
Inventor
Christoph Gaubitz
Martin Laumann
Klaus Scharinger
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.)
Filing date
Publication date
Application filed by Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2009049956A1 publication Critical patent/WO2009049956A1/fr

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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
    • 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
    • F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement

Definitions

  • the invention relates to a bearing assembly for receiving radial and axial loads, consisting of a radial bearing and a double-row, resilient in both directions, thrust bearing.
  • Such generically trained bearing assemblies for receiving radial and axial loads have long been known. They serve to support shafts, threaded spindles or the like both radially, and at the same time to position them axially accurately in both directions and to hold them in their installation position without play.
  • the invention is therefore an object of the invention to provide a combined bearing assembly, which is suitable on the one hand for receiving two shafts and on the other hand is designed as a captive assembly.
  • this object is achieved according to the characterizing part of claim 1 in conjunction with the preamble in that the radial bearing is concentrically enclosed by a receiving bore of the thrust bearing captive, wherein the axial extent of the radial bearing essentially corresponds to that of the thrust bearing and two by a Gap spaced apart waves are received, wherein at least one of the shafts is received by the radial bearing via a shaft journal and both shafts are supported via a shaft collar on each side of the thrust bearing.
  • the advantage of the bearing assembly according to the invention is that in this way two waves can be accommodated, which can rotate independently of each other due to their radial and axial support. This affects both the speed and the direction of rotation.
  • Another advantage is that the bearing assembly requires a small axial space, as a unit is designed captive and therefore can not disintegrate into their individual parts on the way to the end customer.
  • the end customer has the advantage that such a captive unit can be easily assembled. Also, one can be Such bearing assembly in a simple way to customize each application individually by both the radial and the thrust bearing designed accordingly and then connected to form a unit.
  • the thrust bearing each having a U-shaped profile which are open in the axial direction to the outside and lie with their bottoms together, each with a radially outer leg with a housing and a radially inner leg with the radial bearing are rotatably connected.
  • Such a U-shaped profile can be produced in a simple manner in various proportions by a non-cutting shaping process.
  • the radial bearing is designed as a rolling bearing or as a sliding bearing. Both variants are equally adjacent and depend on the specific application.
  • the radial bearing is designed as a non-cutting needle sleeve whose bearing needles guided in a cage on the one hand on an outer raceways formed by the needle sleeves and on the other unroll an inner raceway formed by the pin of a shaft.
  • the radial bearing is formed by two needle-sleeves arranged next to one another in the axial direction, the bearing needles guided in a cage on the one hand on outer races formed by the needle sleeves and on the other hand through the pins Roll off the corrugations of the inner raceways.
  • the thrust bearing is designed as a rolling bearing or a plain bearing, guided in cages roll cylindrical rollers on leaves, which are formed on the one hand by the bottoms of the profiles and on the other hand by running wheels or wherein in the profiles sliding was added.
  • a round plate to be arranged on the bottom of the profiles, which serves as a raceway for the axial bearing.
  • the profiles are provided with holding means which engage around the pulleys of the thrust bearing in a form-fitting manner.
  • Such holding means may be, for example, uniformly circumferentially spaced retaining lugs or a locking ring.
  • the profiles are taken up by a non-cutting shaped sleeve whose radially inwardly directed legs engage around this form-fitting manner. In this way, a captive unit can be accomplished in a simple manner.
  • Figure 1 shows an axial section through an inventive
  • Bearing arrangement including shafts and housings
  • FIGS. 2 and 3 show an axial section through different bearing variants including shafts, but without housing,
  • the bearing arrangement shown in Figure 1 consists of the designated radial bearing 1 and 2 designated thrust bearing.
  • the radial bearing 1 is received by the central receiving bore 3 of the thrust bearing 2, wherein both bearings 1, 2 rotatably disposed one inside the other, for example by a press fit.
  • radial bearings 1 and axial bearings 2 have approximately the same axial length extension.
  • the radial bearing 1 consists of the non-cutting pulled needle sleeve 4, which is provided on both sides with radially inwardly directed ribs 5.
  • the needle sleeve 4 is completed by guided in the cage 6 bearing needles 7.
  • the thrust bearing 2 consists of the two U-shaped profiles 8, which are open in the axial direction to the outside. Each profile has the bottom 9 and is continued by the two legs 10, 11, which are aligned in the axial direction. The profiles 8 are connected with their radially outer legs 10 with the housing 22. Axiallager 2 further includes the two pulleys 12, which are encompassed by evenly spaced in instrumentsgehchtung spaced retaining lugs 13, so that the running discs 12 are fixed to the profiles 8. Finally belong to the thrust bearing 2 still guided in cages 14 cylindrical rolling elements 15 which are arranged spaced apart in the axial direction and roll on unspecified raceways. These tracks are on the one hand by the Soils 9 of the profiles 8 and on the other hand provided by the two pulleys 12.
  • the two shafts 16, 17, which both have the collar 18, 19, belong to the bearing arrangement.
  • the shaft 16 is received by its pin 20 of the needle sleeve 4 and thus provides the inner race for the bearing needles 7.
  • Both shafts 16, 17 are supported in the axial direction on their collar 18, 19 on the pulleys 12 of the thrust bearing 2. In this way, it is possible for the shafts 16, 17, which are spaced apart from one another in the axial direction by the gap 33, to be able to rotate about their axis 21 at different speeds and also with different directions of rotation.
  • the shaft 16 is received by its journal 20 from the radial bearing 1, but also the shaft 17 with its pin 23.
  • the thrust bearing 2 it is necessary that in the receiving bore 3 of the thrust bearing 2 two axially juxtaposed non-cutting needle sleeves 4 are arranged so that their bearing needles 7 roll on the inner races, which are provided by the pins 20, 23 of the shafts 16, 17.
  • the thrust bearing 2 is equipped with blanks 24, which are placed on the bottoms 9 of the U-shaped profiles 8. This makes it possible that the profiles 8 no heat treatment must be subjected to hardness increase, which has a favorable effect on the flanging.
  • the bearing arrangement shown in Figure 3 differs from that according to Figure 2 in that the two pins 20, 23 of the shafts 18, 19 are received by a sliding bearing, such that in the receiving bore 3 of the radial bearing 1, a sliding bushing 25 is inserted inner lateral surface, the two pins 20, 23 of the shafts 16, 17 receives.
  • the radial-axial bearing shown in Figure 4 differs from that shown in Figure 3 by the attachment of the profiles 8 at their bottoms 9.
  • the bottoms 9 of the profiles 8 are positively held to each other, wherein a projection 26 of a bottom 9 engages in a recess 27 of the other bottom 9. This positive connection prevents the rotation of the profiles 8 in the circumferential direction against each other.
  • FIG. 5 shows another similarly constructed radial-axial bearing, the essential difference with respect to the bearing shown in FIG. 3 in that the running disks 12 are held within the profiles 8 by a respective securing ring 28 arranged on the right and left hand side. which are snapped into the legs 10.
  • FIG 8 a final radial-axial bearing is shown in Figure 8, which differs in the manner of cohesion of the profiles 8 from those described above. This takes place in a form-fitting manner in such a way that a sleeve 31 pulled without cutting radially encloses the profiles 8 radially on their outer legs 10 and secures them axially by the inwardly bent ribs 32.
  • reference numeral 31 pulled without cutting radially encloses the profiles 8 radially on their outer legs 10 and secures them axially by the inwardly bent ribs 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un ensemble de paliers destiné à supporter des charges radiales et axiales, constitué d'un palier radial et d'un palier axial double pouvant accepter des charges dans les deux sens. L'ensemble de paliers se caractérise en ce que le palier radial (1) est entouré concentriquement par un alésage de logement (3) du palier axial (2), l'extension axiale du palier radial (1) correspondant sensiblement à celle du palier axial (2) et deux arbres (16, 17), séparés par un interstice (33), étant logés, au moins un des arbres (16) étant reçu par le palier radial (1) par l'intermédiaire d'un tourillon (20) et les deux arbres (16, 17) étant supportés de chaque côté du palier axial (2) par l'intermédiaire d'un collet (18, 19).
PCT/EP2008/061532 2007-10-10 2008-09-02 Ensemble de paliers destiné à supporter des charges radiales et axiales WO2009049956A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710048669 DE102007048669A1 (de) 2007-10-10 2007-10-10 Lageranordnung zur Aufnahme radialer und axialer Belastungen
DE102007048669.5 2007-10-10

Publications (1)

Publication Number Publication Date
WO2009049956A1 true WO2009049956A1 (fr) 2009-04-23

Family

ID=40351919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/061532 WO2009049956A1 (fr) 2007-10-10 2008-09-02 Ensemble de paliers destiné à supporter des charges radiales et axiales

Country Status (2)

Country Link
DE (1) DE102007048669A1 (fr)
WO (1) WO2009049956A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019129710B4 (de) * 2019-11-05 2023-04-20 Schaeffler Technologies AG & Co. KG Kombiniertes Radial-Axiallager mit spezieller Axialspieleinstellung
DE102021113825A1 (de) 2021-05-28 2022-12-01 Schaeffler Technologies AG & Co. KG Axialscheibenanordnung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124256A (en) * 1976-01-29 1978-11-07 Nadella Combined radial and axial bearing
DE3643295A1 (de) * 1986-12-18 1988-06-23 Skf Gmbh Dreiringlager

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6946098U (de) 1969-11-28 1972-03-16 Hoesch Ag Dreiteilige axial-radial-rollendrehverbindung.
DE2738287A1 (de) 1977-08-25 1979-03-01 Schaeffler Ohg Industriewerk Radial-axial-waelzlager
DE3620102A1 (de) 1986-06-14 1987-12-17 Kugelfischer G Schaefer & Co Segmentkaefig fuer axialrollenlager
DE10010075A1 (de) 2000-03-02 2001-09-06 Schaeffler Waelzlager Ohg Radial-Axial-Wälzlager
WO2005103515A1 (fr) 2004-03-30 2005-11-03 Harmonic Drive Systems Inc. Roulement à bille composite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124256A (en) * 1976-01-29 1978-11-07 Nadella Combined radial and axial bearing
DE3643295A1 (de) * 1986-12-18 1988-06-23 Skf Gmbh Dreiringlager

Also Published As

Publication number Publication date
DE102007048669A1 (de) 2009-04-23

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