WO2012101195A1 - Système de direction assistée - Google Patents

Système de direction assistée Download PDF

Info

Publication number
WO2012101195A1
WO2012101195A1 PCT/EP2012/051185 EP2012051185W WO2012101195A1 WO 2012101195 A1 WO2012101195 A1 WO 2012101195A1 EP 2012051185 W EP2012051185 W EP 2012051185W WO 2012101195 A1 WO2012101195 A1 WO 2012101195A1
Authority
WO
WIPO (PCT)
Prior art keywords
rings
power steering
partial
steering system
sleeve
Prior art date
Application number
PCT/EP2012/051185
Other languages
German (de)
English (en)
Inventor
Christoph Schleicher
Klaus BUNDSCHUH
Benjamin RUSSER
Arthur Rupp
Original Assignee
Zf Lenksysteme Gmbh
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 Zf Lenksysteme Gmbh filed Critical Zf Lenksysteme Gmbh
Priority to DE112012000594.5T priority Critical patent/DE112012000594A5/de
Publication of WO2012101195A1 publication Critical patent/WO2012101195A1/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
    • 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
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • 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
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • F16C19/166—Four-point-contact ball bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns
    • 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
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring

Definitions

  • the invention relates to a power steering, in particular for a motor vehicle, with a servomotor which drives an axially displaceable component via a rotatably but axially non-displaceably mounted in a housing nut, wherein the nut is mounted in a bearing unit in the housing and the bearing unit is a ball bearing has, which has an inner ring and / or an outer ring, wherein the inner ring and / or the outer ring has two axially successively arranged part inner rings and / or part outer rings.
  • the invention has the object to improve a power steering to the effect that the above-mentioned disadvantages will be avoided in the future.
  • the object is achieved in the power steering according to the invention with a bearing unit of the type mentioned, are arranged in which at the outer end faces of the inner rings and / or the partial outer rings spring elements.
  • the spring elements press against the part inner rings and / or the part outer rings on both outer end faces.
  • the ball bearing can be arranged in a sleeve, which has at least partially over the outer end faces of the outer part rings drawn edges, wherein between the edges and the end faces, the spring elements are arranged.
  • the spring elements can reliably press against the inner part rings and / or the outer part rings.
  • spring elements all known in the art springs in Consider, in particular disc springs, corrugated springs, coil springs and the like.
  • the edges may be formed as along the circumference of the sleeve one behind the other arranged spring elements.
  • the spring elements and the sleeve are integrally formed, whereby the assembly cost is reduced.
  • the sleeve may have on its inner wall in the region of a gap between the outer part rings and / or the partial inner rings a circumferential bead or nubs distributed over the circumference. Both the bead and the nubs can be made in one piece with the sleeve of an elastically deformable material. In this way, they effect an effective seal, so that a lubricant located in the ball bearing can not escape.
  • the sleeve may also have a circumferential bead or circumferentially distributed nubs in the region of the gap on its outer wall.
  • This bead or nubs lie directly on the housing, in which the ball bearing is installed. Consequently, there is a gap between the housing and the ball bearing laterally from the bead or nubs, so that the ball bearing is slightly pivotable within the housing.
  • the functionality of the ball bearing is possible even in the pivoted state. The risk of jamming or damage to the bearing unit due to lateral forces acting on a shaft mounted in the ball bearing are thus reduced.
  • the bead or nubs may be made integral with the sleeve, preferably of a resilient material, so that the bead or nubs can also compensate for tolerances that can arise when the housing thermally expands more than the bearing unit or contracts more strongly as the case.
  • At least one spring element can be arranged on the outer surface of the sleeve.
  • the spring element can run bead-like along the entire circumference of the sleeve and be designed in one piece with the sleeve. But it may also be that a plurality of spring elements are distributed along the outer circumference of the sleeve and are integrally connected thereto. The spring element presses against the housing and can engage when inserted into the housing during assembly of the ball bearing in a housing located in the undercut.
  • the partial outer rings and / or the partial inner rings can be pressed against each other with at least two brackets.
  • the brackets may be integrally connected to a bead running around the partial outer rings and / or the partial inner rings, wherein the bead may be adaptable in the gap between the partial outer rings and / or the partial inner rings.
  • the bead thus avoids the escape of the lubricant. If the partial inner rings and / or the partial outer rings on the outer end faces recesses for receiving the brackets, so can be saved in this way in the axial direction of space.
  • Fig. 1 is a sectional view of a power steering
  • FIGS. 1 a and 1 b are sectional views through a first and second embodiment of the storage unit
  • FIGS. 2a and 2b a sectional view through a third and fourth embodiment of the storage unit
  • FIGS. 3a and 3b a sectional view through a fifth and sixth
  • FIGS. 4a and 4b a sectional view through a seventh and eighth embodiment of the bearing unit;
  • FIGS. 5a and 5b is a sectional view through a ninth and tenth
  • Embodiment of the storage unit Embodiment of the storage unit.
  • a bearing unit 10, 1 1, 20, 21, 30, 31, 50, 51 for an electric power steering 1 is shown.
  • An electric servomotor 3 serves to provide a steering assist force on a spindle formed as, in the steering housing axially
  • the spindle is connected via a ball screw, consisting of a ball screw between the spindle and a nut 5 which is rotatably disposed about the spindle, with a toothed belt transmission with the servomotor 3.
  • the ball nut 5 is mounted axially and radially on the bearing unit 10, 1 1, 20, 21, 30, 31, 50, 51.
  • the Fign. 1 a and 1 b show bearing units 10 and 1 1 with a ball bearing 12 and 13.
  • the ball bearing 12 has an inner ring 14 and an outer ring 15 with part outer rings 16 and 17.
  • the ball bearing 13 has an outer ring 18 and an inner ring 19 with partial inner rings 100 and 101.
  • a sleeve 102 running around the partial outer rings 16 and 17 presses the partial outer rings 16 and 17 together.
  • spring elements 103 and 104 are arranged between the sleeve 102 and the partial outer rings 16 and 17.
  • a sleeve 105 passes around the partial inner rings 100 and 101 and also compresses them together with the spring elements 106 and 107.
  • the sleeves 102 and 105 have outwardly projecting projections 1 10, 1 1 1, 1 12 and 1 13, through which an accurate distance to a housing not shown here is realized. Furthermore, the ball bearings 12 and 13 have a cover 109 which prevents the entry of dirt.
  • the sleeve 102 has a circumferential bead 1 14, wherein the sleeve 105 between the partial inner rings 100 and 101 a circumferential bead 1 15 has.
  • the beads 1 14 and 1 15 seal the ball bearings 12 and 13 in the radial direction and prevent lubricant from being lost.
  • the Fign. 2a and 2b show bearing units 20 and 21 with sleeves 22 and 23, which press the partial outer rings 16 and 17 and the partial inner rings 100 and 101 together in the axial direction.
  • the sleeves 22 and 23 have partially over outer end faces 24 and 25 and end faces 26 and 27 drawn edges 28 and 29 and 200 to 201, which are formed as spring elements.
  • the Fign. 3a and 3b show storage units 30 and 31 with sleeves 32 and 33, which have on their outer wall a circumferential bead 34 and 35. At the beads 34 and 35, a housing not shown in detail here can rest directly and thus be pivoted about the beads 34 and 35 around.
  • the Fign. 4a and 4b show bearing units 50 and 51 with sleeves 52 and 53, at the Au . Commonsf surface a spring element 54 and 55 is arranged.
  • the spring element 54 and 53 can press against the housing, not shown, and engage during insertion of the bearing units 50 and 51 in the housing during assembly in an undercut in the housing.
  • FIGS. 5a and 5b Another alternative embodiment is shown in FIGS. 5a and 5b with the bearing units 60 and 61, in which the partial outer rings 62 and 63 and the partial inner rings 64 and 65 are provided at their outer end faces with recesses 68, 69, 600 and 601, so that brackets 66 and 67 can be inserted therein, to press the partial outer rings 62 and 63 and the partial inner rings 64 and 65 against each other.
  • recesses 68, 69, 600 and 601 have the bearing units
  • the brackets 66 and 67 have, between the outer part rings 62 and 63 and the partial inner rings 64 and 65, a circumferential bead 602 and 603 which is connected to all of the bearing units 60 and 60
  • 61 arranged brackets is integrally connected and thus runs around ball bearings 604 and 605.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Rolling Contact Bearings (AREA)
  • Power Steering Mechanism (AREA)

Abstract

L'invention concerne un système de direction assistée (1), notamment pour un véhicule à moteur, comportant un servomoteur (3) entraînant, au moyen d'un écrou monté rotatif mais axialement immobile dans un carter (2), un composant (4) axialement déplaçable, ledit écrou étant situé au sein d'une unité de palier (10, 11, 20, 21, 30, 31, 50, 51) dotée d'un roulement à billes (12, 13) présentant une bague intérieure (14) et/ou une bague extérieure (15), la bague intérieure (14) et/ou la bague extérieure (15) présentant deux bagues partielles intérieures (100, 101) et/ou bagues partielles extérieures (16, 17) disposées axialement l'une derrière l'autre. Selon l'art antérieur, un seul élément à ressort appuyait sur l'une des deux bagues partielles extérieures, faisant en sorte que les billes se déplacent suite à une dilatation thermique d'une manière non définie entre les bagues de roulement intérieures et extérieures. C'est pourquoi, selon l'invention, des éléments à ressort (103, 104, 106, 107) sont disposés sur les faces frontales extérieures des bagues partielles intérieures (100, 101) et/ou des bagues partielles extérieures (16, 17).
PCT/EP2012/051185 2011-01-27 2012-01-26 Système de direction assistée WO2012101195A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112012000594.5T DE112012000594A5 (de) 2011-01-27 2012-01-26 Servolenkung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011003251.7 2011-01-27
DE102011003251A DE102011003251A1 (de) 2011-01-27 2011-01-27 Lagereinheit

Publications (1)

Publication Number Publication Date
WO2012101195A1 true WO2012101195A1 (fr) 2012-08-02

Family

ID=45529117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/051185 WO2012101195A1 (fr) 2011-01-27 2012-01-26 Système de direction assistée

Country Status (2)

Country Link
DE (2) DE102011003251A1 (fr)
WO (1) WO2012101195A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107830050A (zh) * 2017-12-06 2018-03-23 安徽睿知信信息科技有限公司 一种便捷拆卸的单列圆锥滚子轴承
DE102021107647A1 (de) 2021-03-26 2022-09-29 Schaeffler Technologies AG & Co. KG Lenkungslager für ein Fahrzeug

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2781778B1 (fr) * 2013-03-22 2017-05-17 Aktiebolaget SKF Roulement préchargé, notamment pour une colonne de direction
DE102013225068A1 (de) * 2013-12-06 2015-06-11 Schaeffler Technologies AG & Co. KG Lenkungslager zur Lagerung einer Lenksäule eines Kraftfahrzeugs
FR3027645B1 (fr) * 2014-10-24 2018-03-02 Aktiebolaget Skf Dispositif de poulie pour chaine ou courroie et vehicule automobile equipe d'un tel dispositif
DE102018107875A1 (de) * 2018-04-04 2019-10-10 Schaeffler Technologies AG & Co. KG Tandem-Schrägkugellager
IT201900016145A1 (it) * 2019-09-12 2021-03-12 Ge Avio Srl Ammortizzatore di un sistema assialmente iperstatico

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB703563A (en) * 1950-05-10 1954-02-03 Star Kugelhalter Gmbh Dt Improvements in or relating to seatings for machine parts
DE4108827A1 (de) * 1991-03-18 1992-09-24 Schaeffler Waelzlager Kg Spielfreies kugellager
DE4114643C2 (de) 1991-05-04 1995-12-21 Schaeffler Waelzlager Kg Wälzlager, insbesondere für Lenksäulen
DE10132470A1 (de) 2001-07-04 2003-01-23 Ina Schaeffler Kg Spielfreies Radialkugellager
WO2008017541A1 (fr) * 2006-08-10 2008-02-14 Zf Lenksysteme Gmbh Direction assistée

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118835A (en) * 1917-09-04 1918-12-12 Konrad Werner Lindman Improvements in Ball Bearings.
DE867777C (de) * 1944-08-05 1953-02-19 Star Kugelhalter Ges M B H Deu Verfahren zur Herstellung von zusammenarbeitenden Innen- und Aussenringen fuer gekapselte Ringrillenlager
DE7414644U (de) * 1974-04-26 1974-08-01 Skf Kugellagerfabriken Gmbh Kugellager
DE3930970A1 (de) * 1989-09-16 1991-03-28 Schaeffler Waelzlager Kg Toleranzring aus polymerem werkstoff
DE4229199A1 (de) * 1992-09-02 1994-03-03 Schaeffler Waelzlager Kg Spielfreies Wälzlager
JPH1182521A (ja) * 1997-08-29 1999-03-26 Totsuku Bearing Kk ベアリング
DE10058491A1 (de) * 2000-11-24 2002-05-29 Ina Schaeffler Kg Lager zur Fixierung einer Lenkwelle
DE20102394U1 (de) * 2001-02-10 2001-04-26 Skf Gmbh Zweireihiges Kugellager
DE102005003987B4 (de) * 2005-01-28 2018-07-05 Schaeffler Technologies AG & Co. KG Spielfreies Radialkugellager
DE102009036303A1 (de) * 2009-08-06 2011-02-10 Zf Lenksysteme Gmbh Wälzlager

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB703563A (en) * 1950-05-10 1954-02-03 Star Kugelhalter Gmbh Dt Improvements in or relating to seatings for machine parts
DE4108827A1 (de) * 1991-03-18 1992-09-24 Schaeffler Waelzlager Kg Spielfreies kugellager
DE4114643C2 (de) 1991-05-04 1995-12-21 Schaeffler Waelzlager Kg Wälzlager, insbesondere für Lenksäulen
DE10132470A1 (de) 2001-07-04 2003-01-23 Ina Schaeffler Kg Spielfreies Radialkugellager
WO2008017541A1 (fr) * 2006-08-10 2008-02-14 Zf Lenksysteme Gmbh Direction assistée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107830050A (zh) * 2017-12-06 2018-03-23 安徽睿知信信息科技有限公司 一种便捷拆卸的单列圆锥滚子轴承
DE102021107647A1 (de) 2021-03-26 2022-09-29 Schaeffler Technologies AG & Co. KG Lenkungslager für ein Fahrzeug

Also Published As

Publication number Publication date
DE102011003251A1 (de) 2012-08-02
DE112012000594A5 (de) 2014-01-16

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