WO2022228597A1 - Unité de palier radial-axial combinée ayant des éléments fabriqués par une technique de façonnage - Google Patents

Unité de palier radial-axial combinée ayant des éléments fabriqués par une technique de façonnage Download PDF

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Publication number
WO2022228597A1
WO2022228597A1 PCT/DE2022/100138 DE2022100138W WO2022228597A1 WO 2022228597 A1 WO2022228597 A1 WO 2022228597A1 DE 2022100138 W DE2022100138 W DE 2022100138W WO 2022228597 A1 WO2022228597 A1 WO 2022228597A1
Authority
WO
WIPO (PCT)
Prior art keywords
radial
axial
bearing
cage
axial bearing
Prior art date
Application number
PCT/DE2022/100138
Other languages
German (de)
English (en)
Inventor
Wolfgang Fugel
Tanja Weissbrodt
Andreas Kirschner
Frank Schoenstein
Original Assignee
Schaeffler Technologies AG & Co. 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 Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2022228597A1 publication Critical patent/WO2022228597A1/fr

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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
    • F16C19/22—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
    • 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
    • F16C19/44—Needle bearings
    • F16C19/48—Needle bearings with two or more rows of needles

Definitions

  • the present invention relates to a combined radial/axial bearing unit with components manufactured by molding, in particular a bearing sleeve made from a formed sheet metal material, comprising a hollow-cylindrical radial bearing area with an outer circumferential raceway for rolling elements guided in a radial cage, which form a radial bearing component. Adjacent to this is an axial bearing component.
  • bearing units of interest here are used, for example, in a drive train wherever a shaft is to be supported in both the radial and axial direction, for example in the case of a pinion shaft bearing of an axle differential.
  • the radial bearing component has an inner ring and an outer ring, between which cage-guided rolling elements, here in the form of rollers, are located.
  • the thrust bearing component includes two thrust washers, between which the cage-guided rollers, which are also standard, are arranged.
  • the outer ring of the radial bearing component and the axial disk of the axial bearing component facing it are mechanically coupled to one another and at the same time movable relative to one another in order to form a prefabricated structural unit. Analog The same is realized between the inner ring of the radial bearing component and the outer thrust washer of the thrust bearing component.
  • the hardened raceways are to be provided by bearing sleeves of the bearing unit.
  • the bore nor the shaft need to meet special hardness requirements.
  • the present invention is dedicated to this topic.
  • the invention includes the technical teaching that a combined radial/axial bearing unit with an inner bearing sleeve made monolithically from a formed sheet metal material, comprising a hollow-cylindrical radial bearing area with an outer circumferential raceway for roller bodies guided in a radial cage and an adjoining disk-shaped axial bearing area with a laterally arranged raceway for rolling elements guided in an axial cage, with an outer bearing sleeve also monolithically produced from formed sheet metal material having a hollow-cylindrical radial bearing area with an inner circumferential raceway for the rolling elements and an adjoining disk-shaped axial bearing area with a laterally arranged raceway for the rolling elements.
  • the advantage of the solution according to the invention lies in particular in the fact that thanks to the two bearing sleeves, which are each produced in one piece and from a single material by forming and which do not require any additional machining, simple production is made possible.
  • a further aspect of the invention is dedicated to a simple assembly due to the measures set out below which further improve the invention and which enable a clip connection of the components of the combined radial/axial bearing unit, which in the assembled state ensures a self-contained unit.
  • the axial cage be fixed via at least one first form-fitting connection point arranged adjacent to the outer circumferential raceway of the radial bearing area on the disk side in the frame of the structural unit, which is preferably designed as a raised or recessed bead or embossing.
  • the axial cage is pushed onto the radial bearing area of the inner bearing sleeve and pushed over the form-fitting connection point using increased force. This realizes the clip connection.
  • the outer bearing sleeve be fixed via at least one second form-fitting connection point arranged on an axial edge region, which is preferably designed as an edge caulking. This makes it possible to push the outer bearing sleeve over the previously mounted radial cage with the rolling elements guided therein until it comes into engagement with the axial cage on the outer edge side, so that a further clip connection is created.
  • a radially inwardly angled edge area be formed in one piece, which encompasses the radial cage and, as a third, form-fitting edge area Connection point thereby prevents the radial cage from slipping out together with the roller bearings guided in it from the combined radial/axial bearing unit.
  • the radially inward The angled edge area of the outer bearing sleeve thus forms the third form-fitting connection point.
  • connection points described above have to be implemented in the aforementioned manner. These can also be provided, for example, by connecting means arranged on the respectively opposite component. Due to the fact that the aforementioned components can be assembled using clip connections, relatively low assembly forces are required and precise alignment of the components with respect to one another can be achieved without additional assembly devices.
  • the axial cage has such a wide radially inner cage web that its width corresponds at least to the height of the radial cage.
  • a largely planar contact surface of the end face of the radial cage is created as a contact surface on the web of the axial cage, which is far too wide in this respect, which thus interact in the manner of an axial slide bearing.
  • the two bearing sleeves used in the context of the present invention which are produced monolithically by forming, are preferably designed as stamped and bent parts, the respective radial bearing area of which is produced by deep-drawing, where the raceways are introduced by stamping. This eliminates the need for more complex machining and/or thermal processing steps.
  • roller bearings for the radial bearing and/or for the axial bearing are preferably in the form of needles. Instead of a needle bearing, however, a roller bearing can also be considered or a mix of these different rolling elements.
  • FIG. 2 shows a perspective partial section of the bearing unit from FIG. 1.
  • the combined radial/axial bearing unit consists of an inner bearing sleeve 1 produced by forming, which has a hollow-cylindrical radial bearing area 2 with an outer circumferential raceway 4 for rolling elements 6, which are guided in a radial cage 5, and an adjoining disk-shaped axial bearing area 3 with a laterally arranged raceway 7 for ge in an axial cage 8 led rolling elements 9 includes.
  • an outer bearing sleeve 10 also made from a formed sheet metal material, which has a hollow-cylindrical radial bearing area 11 with an inner circumferential raceway 12 for the rolling elements 6 and an adjoining disk-shaped axial bearing area 13 with a laterally arranged raceway 14 for the rolling elements 9.
  • the axial cage 8 is fixed via at least one first form-fitting connection point 15 arranged adjacent to the outer circumferential raceway 4 of the radial bearing region 2 on the disk side.
  • This first connection point 15 is designed here as a bead that is raised in the direction of action.
  • the outer bearing sleeve 10 is fixed via a second positive connection point 17 arranged on an axial edge area 16 .
  • the second form-fitting connection point 17 is designed as a caulking at the edge.
  • the radial cage is fixed at the end of the hollow cylindrical radial bearing region 11 of the outer bearing sleeve 10 facing away from the axial bearing region 13 in one piece and radially inwardly angled edge region 18 , which to this extent forms a third connec tion point 19 .
  • the combined radial / axial bearing unit is in the assembled state through the interaction of the three interlocking connection points 15, 17 and 19 connected as a self-retaining unit.
  • the axial cage 6 has such a wide radially inner cage bar 20 that its width corresponds at least to the height of the radial cage 6, whereby a sliding bearing of the cages takes place.
  • the invention is not limited to the preferred exemplary embodiment described above. Rather, modifications of this are also conceivable, which are included in the scope of protection of the following claims. For example, it is also possible to use rolling elements other than needles for storage. In each case, the radial/axial bearing unit according to the invention is designed to be self-retaining and secured against loss.

Landscapes

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

Abstract

L'invention concerne une unité de palier radial-axial combinée comportant un manchon de palier intérieur (1) formé de manière monolithique à partir d'un matériau métallique en feuille façonnée, comprenant une partie palier radial cylindrique creuse (2) comportant un chemin de roulement circonférentiel externe (4) destiné à des éléments roulants (6) guidés dans une cage radiale (5), et une partie palier axial de type disque (3) qui est adjacente à la partie palier radial (2) et présente un chemin de roulement (7), situé sur une face latérale, pour des éléments roulants (9) guidés dans une cage axiale (8) ; en outre, un manchon de palier extérieur (10), également obtenu de façon monolithique à partir d'un matériau métallique en feuille façonnée, comporte une partie palier radial cylindrique creuse (11) comportant un chemin de roulement circonférentiel interne (12) destiné aux éléments roulants (6), et une partie palier axial de type disque (13) qui est adjacente à la partie palier radial (11) et comporte un chemin de roulement (14), situé sur une face latérale, pour les éléments roulants (9).
PCT/DE2022/100138 2021-04-26 2022-02-21 Unité de palier radial-axial combinée ayant des éléments fabriqués par une technique de façonnage WO2022228597A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021110622.2A DE102021110622A1 (de) 2021-04-26 2021-04-26 Kombinierte Radial-/Axiallagereinheit mit umformtechnisch hergestellten Komponenten
DE102021110622.2 2021-04-26

Publications (1)

Publication Number Publication Date
WO2022228597A1 true WO2022228597A1 (fr) 2022-11-03

Family

ID=80595194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2022/100138 WO2022228597A1 (fr) 2021-04-26 2022-02-21 Unité de palier radial-axial combinée ayant des éléments fabriqués par une technique de façonnage

Country Status (2)

Country Link
DE (1) DE102021110622A1 (fr)
WO (1) WO2022228597A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6906196U (de) * 1969-02-13 1969-08-21 Duerkoppwerke Kombiniertes-radial-axialwaelzlager
FR2513334A1 (fr) * 1981-09-24 1983-03-25 Nadella Butee axiale et radiale combinee
US4971460A (en) * 1989-05-20 1990-11-20 Ina Walzlager Schaeffler Kg Axial-radial rolling bearings
JP2008223905A (ja) * 2007-03-13 2008-09-25 Jtekt Corp ストラット用軸受
DE102011079750A1 (de) 2011-07-25 2013-01-31 Schaeffler Technologies AG & Co. KG Kombiniertes Radial-Axial-Rollenlager
JP2013061023A (ja) * 2011-09-14 2013-04-04 Jtekt Corp スラスト転がり軸受
JP2014047815A (ja) * 2012-08-30 2014-03-17 Nsk Ltd 回転支持装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6906196U (de) * 1969-02-13 1969-08-21 Duerkoppwerke Kombiniertes-radial-axialwaelzlager
FR2513334A1 (fr) * 1981-09-24 1983-03-25 Nadella Butee axiale et radiale combinee
US4971460A (en) * 1989-05-20 1990-11-20 Ina Walzlager Schaeffler Kg Axial-radial rolling bearings
JP2008223905A (ja) * 2007-03-13 2008-09-25 Jtekt Corp ストラット用軸受
DE102011079750A1 (de) 2011-07-25 2013-01-31 Schaeffler Technologies AG & Co. KG Kombiniertes Radial-Axial-Rollenlager
JP2013061023A (ja) * 2011-09-14 2013-04-04 Jtekt Corp スラスト転がり軸受
JP2014047815A (ja) * 2012-08-30 2014-03-17 Nsk Ltd 回転支持装置

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Publication number Publication date
DE102021110622A1 (de) 2022-10-27

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