EP2507525A1 - Ensemble palier - Google Patents

Ensemble palier

Info

Publication number
EP2507525A1
EP2507525A1 EP10781517A EP10781517A EP2507525A1 EP 2507525 A1 EP2507525 A1 EP 2507525A1 EP 10781517 A EP10781517 A EP 10781517A EP 10781517 A EP10781517 A EP 10781517A EP 2507525 A1 EP2507525 A1 EP 2507525A1
Authority
EP
European Patent Office
Prior art keywords
bearing
arrangement according
engagement element
bearing arrangement
outer ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10781517A
Other languages
German (de)
English (en)
Inventor
Jürgen BITZL
Burkhard Buchheim
Alexander Dilje
Helmut Hauck
Stefanie Seufert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of EP2507525A1 publication Critical patent/EP2507525A1/fr
Withdrawn legal-status Critical Current

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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • 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
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • 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
    • F16C2226/74—Positive connections with complementary interlocking parts with snap-fit, e.g. by clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/65—Gear shifting, change speed gear, gear box

Definitions

  • the invention relates to a bearing assembly, comprising a bearing carrier with at least one receptacle for at least one outer ring of a bearing and at least one bearing.
  • Bearing arrangements of this type are well known in the art. They are used in particular to realize the storage for two radially relatively closely spaced, parallel to each other transmission shafts in a transmission housing. This is usually a carrier sheet with two shots, z. B. circular cutouts provided for the bearing outer rings; the bearing outer rings and thus the bearings are then fixed, for example by means of snap rings, which engage in circumferential ingris in the bearing outer rings, relative to the bearing carrier. This creates a unit that can be easily mounted in the gearbox.
  • the bearing carrier does not necessarily have to transmit bearing forces during later operation; it can also serve as a pure support for the bearings until they are fixed in the housing and in particular in corresponding housing bores. But it is also possible that the bearing carrier is designed so that it can absorb and transmit bearing forces during operation of the bearing.
  • the invention is based on the invention to propose a bearing arrangement of the generic type, which ensures that during operation of the bearing assembly unwanted co-rotation of the bearing outer ring is reliably prevented in the bearing bracket, this being accomplished by simple and inexpensive implementable means.
  • the solution to this problem by means of the invention is characterized in that the outer ring of the at least one bearing has a recess at at least one peripheral location and at least one engagement element is arranged on or in the bearing carrier, wherein the engagement element is in the state of the bearing installed in the bearing carrier engages positively to prevent rotation of the outer ring relative to the bearing carrier in the recess.
  • the recess is preferably formed as a secant extending recess on the outer circumference of the outer ring. Accordingly, the bearing outer ring is thus milled at a peripheral location, for example, to create a recess.
  • the outer ring of the bearing is preferably provided only at a single circumferential location with such a recess.
  • the bearing carrier preferably has two adjacent seats for two bearings.
  • the recesses in the outer rings of the two bearings are preferably arranged adjacent to each other in this case, wherein an engagement element engages positively in both recesses.
  • the engagement element may be made as a separate part, which is fixed on or in the bearing bracket. It may be formed in this case as a molded part having a congruent to the recess shaped contact surface.
  • the engagement element may further comprise fastening means for fixing to the bearing carrier.
  • the fastening means is preferably designed as at least one bendable tab, preferably as two bendable tabs, which can engage behind the bearing carrier or can.
  • the engagement element may alternatively be formed as a molding of the material of the bearing carrier.
  • the engagement element is formed by a material portion of the bearing carrier, which is bent out of the plane of the bearing carrier executed flat.
  • the engagement element may in this case preferably be arranged in the connection region of two adjacent receptacles for the outer ring of a bearing.
  • the engagement element consists according to a further development of two sub-elements, which are mirrored to a plane having the two axes of the two bearings. These sub-elements may have a hook-shaped free end region.
  • each outer ring of the bearing has an annular groove in which engages a snap ring for axial securing of the bearing relative to the bearing carrier.
  • FIG. 2 in perspective view of a bearing according to the arrangement according to
  • Fig. 3 in exploded view of the bearing carrier including two bearings according to the
  • FIG. 1 Arrangement according to FIG. 1 according to a first embodiment of the invention
  • FIG. 4 is a perspective view of the bearing carrier together with the two bearings in the fully assembled state according to the first embodiment of the invention
  • Fig. 5 in exploded view of the bearing carrier including two bearings according to the
  • FIG. 6 is a perspective view of the bearing carrier together with the two bearings in the fully assembled state according to the second embodiment of the invention
  • Fig. 7 in exploded view of the bearing carrier including two bearings according to the
  • FIG. 9 is a perspective view of the bearing carrier together with the two bearings in the fully assembled state according to the third embodiment of the invention,
  • the bearing carrier including two bearings according to the
  • 1 1 is an enlarged view of a portion of the bearing support according to the fourth embodiment of the invention.
  • FIG. 13 is an enlarged view of a portion of the bearing carrier of FIG.
  • FIG. 14 is a perspective view of the bearing carrier together with the two bearings in almost completely assembled status according to a fifth embodiment of the invention, wherein an alignment element is not yet arranged on the bearing carrier,
  • FIG. 15 is a perspective view of the alignment of FIG. 14, with the bottom turned up,
  • Fig. 16 in exploded view of the bearing carrier including two bearings according to the
  • FIG. 17 is a perspective view of the bearing carrier together with the two bearings in the fully assembled state according to the sixth embodiment of the invention
  • FIG. 18 in perspective view of the bearing carrier of FIG. 17, viewed from a slightly different view
  • 19 is a perspective view of the bearing carrier together with the two bearings in the fully assembled state according to a seventh embodiment of the invention.
  • a bearing assembly 1 can be seen, comprising two bearings 5, which are used for example for supporting two shafts 14 in a transmission of a motor vehicle.
  • a backup of the bearing 5 in the housing 15 of the transmission is carried out by a two-sided fixation of the bearing 5 by snap rings 13 and 16. Due to the small center distance between the bearings 5, the snap rings 13 and 16 are formed so that they have a wide opening angle, so over a comparatively large elbow blew up; d. H. the snap rings 13, 16 extend around a peripheral region of significantly less than 360 °, z. B. by 330 °.
  • the bearings 5 may be preassembled in the housing 15 in an additional element in the form of a bearing carrier 2, for example made of sheet metal, prior to assembly. In this case, it makes sense to vorzumontieren the bearing 5 in the bearing bracket 2 captive. Then, the bearing support 2 with the bearings 5 supported thereon must be used during assembly of the transmission only at the corresponding location of the housing 15, whereby the bearings 5 are positioned directly in provided bearing bores (mounting openings) in the housing 15. This significantly facilitates the actual assembly process of the transmission.
  • a bearing carrier 2 for example made of sheet metal
  • FIG. 2 shows a bearing 5.
  • the bearing outer ring 4 is on one side, ie at a peripheral point 6, above an annular groove 12 for the snap ring 13 to- flat, ie here a recess 7 is introduced (for example milled in).
  • Two bearings 5 can, as shown in Figure 3, in a bearing support 2 (holder) are introduced.
  • the bearing carrier 2 has two receptacles 3 for each bearing outer ring 4; the receptacles 3 in the present case consist of a circular bore (punched out) in the sheet metal of the bearing carrier 2.
  • the bearing carrier 2 has elevations 17 in the form of nubs, which are arranged so that they form a stop for the circumferential end of the snap rings 13 in the circumferential direction and thus prevent rotation of the snap rings 13.
  • the bearing 5 are oriented in the bearing bracket 2 inserted.
  • the snap rings 13 can already be pre-assembled.
  • an engagement element 8 (additional element), preferably made of sheet metal or plastic, positioned in the region of the snap ring openings between the flattened outer rings.
  • the engagement element 8 is the contours of the outer rings in the region of the recess 7 at least partially reshaped and preferably formed straight in the central region.
  • the engagement element 8 thus has contact surfaces 9 that are congruent with the shape of the recesses 7 of the outer rings 4.
  • the engagement member 8 has end fastening means 10 in the form of deformable retaining lugs, which can be supported in corresponding retaining tabs on the bearing support 2 by bending (which is not shown).
  • Figure 4 shows the preassembled bearing assembly, ready to be installed in the housing can.
  • FIGS. 5 and 6 show an alternative embodiment of the invention.
  • a web 18 of the bearing carrier 2 resulting from the receptacles 3 is broken (ie split), resulting in two tab-like subelements 8 'and 8 ".
  • the subelements 8', 8" are slightly bent out of the plane of the bearing carrier 2. They are each bent so that a hook-shaped end portion 1 1 is formed.
  • the sub-elements 8 ', 8 are dimensioned so that they at mounted bearings 5 engage in the recesses 7 of the outer rings 4 and thus prevent rotation of the outer rings 4 relative to the bearing support 2, namely about the axis of rotation of the bearing 5. Since the sub-elements 8 ', 8 "continuously from the bearing support 2, prevent In addition, they also twisting the snap rings 13.
  • the bearing assembly shown in Figure 7 disassembled state comprises a bearing support 2 (holder) for the bearings 5, wherein additional elements in the form of elevations 17, for example made of sheet metal or plastic, are provided, which are arranged on the web 18 between the two receptacles 3 ,
  • the web 18 thus has elevations (formations) 17 in the form of two nubs.
  • FIG. 8 shows a partial enlargement of the web 18 and the knobs 17.
  • the outer rings 4 of the bearing 5 have radially encircling annular grooves for receiving the snap rings 13. Due to the small spacing of the bearing 5 in the bearing carrier 2, the snap rings 13, as already mentioned, not completely formed radially encircling. Two snap rings 13 are already provided on the bearings 5 before mounting in the bearing bracket 2 to fix the bearing 5 in the bearing bracket 2.
  • the bearing support 2 has attached to the circumference tabs 19. After the oriented insertion of the bearing 5 with preassembled snap rings 13 in the bearing bracket 2, the tabs 19 are folded over the snap rings 13, which is shown in Figure 9. As a result, a captive transport is guaranteed until the assembly of the bearing assembly in the gear housing.
  • FIGS. 10 to 13 An alternative solution is shown in FIGS. 10 to 13.
  • 2 protrusions 20 are formed on the web 18 of the bearing support, forming the elastic snap elements.
  • FIG. 11 shows a fragmentary enlargement.
  • the bearings 5 are pushed from below into the bearing bracket 2, wherein the snap rings 13 are not yet mounted.
  • the projections 20 snap into the annular grooves 12 for the snap rings 13 in the bearings 5 a.
  • the snap rings 13 are snapped over the bearing 5 oriented, in such a way that the projections 20 are respectively within the snap ring openings 21, which analogous to the function of the studs 17 in Figure 7, the rotation of the snap rings 13 is prevented.
  • the bearings 5 are locked captive on the bearing bracket 2, as shown in Figures 12 and 13.
  • the bearings 5 are secured only by the latching lugs 20 (snap-action elements), the bearings 5 can easily tilt in this embodiment. If this is to be prevented, opposite the web 18 or in another region of the snap rings 13 on the bearing carrier 2, a bendable tab can be attached analogously to the embodiment according to FIGS. 7 to 9, so that the bearings 5 are firmly secured to the bearing carrier 2.
  • FIG. 14 shows a further alternative exemplary embodiment, in which a component 22 (holding element) in the form of an attachment is inserted between the bearings 5.
  • the component 22 is shown in detail in FIG. 15 (with its underside facing upwards).
  • the bearing carrier 2 for the bearing 5 is here a simple sheet metal or plastic part with two openings.
  • the component 22 has underside nubs 23, which ensure a defined distance from the surface of the bearing carrier 2.
  • the component 22 has hook-shaped projections 24 (snap elements) which snap into the snap ring grooves of the outer rings of the two bearings 5 and thus fix the component 22 to the bearing arrangement.
  • FIGS. 16 to 19 show a further exemplary embodiment.
  • a component 25 is provided in the form of a slide between the bearings 5.
  • Figure 16 shows a partially assembled state with arrows illustrating the assembly process.
  • Figures 17 and 18 show different views of the finished pre-assembled bearing assembly.
  • the component 25 is the rounding of the bearing 5 at least partially reshaped, wherein the minimum distance of the bearing 5 is taken into account. It is inserted between the bearings 5 and engages in the snap ring grooves on the outer rings of the bearing 5 a. Due to the shape of the component 25 (as a flat sheet, which widens endsei- tig) it is not completely effetschiebbar between the bearings 5.
  • a holder 26 has a bent tab, in which the component 25 is inserted and held.
  • the snap rings 13 are slightly widened for mounting and inserted into the snap ring grooves of the outer rings of the bearing 5.
  • the openings of the snap rings 13 are exactly in the region of the component 25 and are thus held against rotation.
  • FIG. 19 shows an extension of the exemplary embodiment of FIGS. 16 to 18.
  • the bearing carrier 2 in addition to the holding function for the bearing 5 still an angled tab 27 and an opening 28, which can fulfill functions after installation in the transmission, as is the case with known bearing carriers.
  • Corresponding functional elements can also be provided in the other exemplary embodiments.
  • the anti-rotation of the bearing and the captive holder of the snap rings can be combined in an advantageous manner, so that both requirements can be met with relatively little manufacturing effort.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

Ensemble palier qui comporte un support de palier (2) pourvu d'au moins un évidement (3) pour au moins une bague externe d'un palier (5) et au moins un palier (5). Selon l'invention, pour empêcher la rotation indésirable de la bague extérieure de palier dans le support de palier, la bague extérieure du palier (5) comporte en au moins un endroit sur sa périphérie un évidement et au moins un élément d'emboîtement (8) est situé sur le support de palier (2) ou dans ce dernier, l'élément d'emboîtement (8) s'emboîtant par liaison de forme dans l'évidement lorsque le palier (5) est monté dans le support (2) de manière à empêcher la rotation de la bague externe par rapport au support de palier (2).
EP10781517A 2009-12-02 2010-11-25 Ensemble palier Withdrawn EP2507525A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009056527 2009-12-02
PCT/EP2010/068167 WO2011067151A1 (fr) 2009-12-02 2010-11-25 Ensemble palier

Publications (1)

Publication Number Publication Date
EP2507525A1 true EP2507525A1 (fr) 2012-10-10

Family

ID=43531268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10781517A Withdrawn EP2507525A1 (fr) 2009-12-02 2010-11-25 Ensemble palier

Country Status (4)

Country Link
US (1) US8790016B2 (fr)
EP (1) EP2507525A1 (fr)
CN (1) CN102725547B (fr)
WO (1) WO2011067151A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013004422B4 (de) * 2013-03-15 2017-05-11 Thyssenkrupp Presta Teccenter Ag Befestigungsanordnung eines Lageraußenringes in einer Bohrung eines Lagerbocks
DE102013222050B4 (de) * 2013-10-30 2015-05-13 Aktiebolaget Skf Lageranordnung
DE102015210939A1 (de) * 2015-06-15 2016-06-16 Schaeffler Technologies AG & Co. KG Vorrichtung zur Lagerung eines Wellenelements
US10113634B2 (en) * 2015-07-02 2018-10-30 Aktiebolaget Skf Device including one first and at least one second bearing
JP2017141852A (ja) * 2016-02-08 2017-08-17 本田技研工業株式会社 軸受構造

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE676233C (de) 1937-08-31 1939-05-30 Felix Gruzynski Vorrichtung zum Halten eines Kugellagers
US2779641A (en) * 1954-10-20 1957-01-29 Walter S Sutowski Bearing construction
JPS5390155U (fr) * 1976-12-24 1978-07-24
USH242H (en) * 1986-07-08 1987-04-07 The United States Of America As Represented By The Secretary Of The Navy Method of keying outer bearing race to housing
DE19919201C1 (de) 1999-04-28 2000-06-21 Skf Gmbh Lagerschild für die Aufnahme mindestens zweier Lager und Verfahren zur Befestigung mindestens zweier Lager in einem Lagerschild
CH693824A5 (fr) * 1999-04-28 2004-02-27 Bobst Sa Dispositif de fixation et de guidage d'un palier sur un bâti.
DE10153432C1 (de) 2001-10-30 2003-05-15 Skf Ab Wälzlager und Verfahren zur Befestigung eines Wälzlagers
US6666583B2 (en) * 2001-12-04 2003-12-23 Visteon Global Technologies, Inc. Bearing retention assembly having cam chamfered bearing race ring
JP4882888B2 (ja) 2007-06-27 2012-02-22 日本精工株式会社 転がり軸受固定装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011067151A1 *

Also Published As

Publication number Publication date
US20120308170A1 (en) 2012-12-06
WO2011067151A1 (fr) 2011-06-09
CN102725547B (zh) 2016-01-20
CN102725547A (zh) 2012-10-10
US8790016B2 (en) 2014-07-29

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