WO2011020657A1 - Cage de corps de roulement - Google Patents

Cage de corps de roulement Download PDF

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Publication number
WO2011020657A1
WO2011020657A1 PCT/EP2010/060217 EP2010060217W WO2011020657A1 WO 2011020657 A1 WO2011020657 A1 WO 2011020657A1 EP 2010060217 W EP2010060217 W EP 2010060217W WO 2011020657 A1 WO2011020657 A1 WO 2011020657A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling element
wälzkörperkäfig
diameter
circumference
rolling
Prior art date
Application number
PCT/EP2010/060217
Other languages
German (de)
English (en)
Inventor
Umberto Rocca
Original Assignee
Schaeffler Technologies Gmbh & 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 Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2011020657A1 publication Critical patent/WO2011020657A1/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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings
    • F16C43/08—Placing rolling bodies in cages or bearings by deforming the cages or the races
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
    • F16C33/502—Cages for rollers or needles formed of interconnected members, e.g. chains formed of arcuate segments retaining one or more rollers or needles
    • 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
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

Definitions

  • the invention relates to a rolling element cage for forming a bearing of components rotatably mounted on a shaft, in particular for supporting a gearwheel on a shaft of a gearbox with circumferentially distributed in the rolling element cage, on a radially sunken running surface of the shaft with a predetermined working diameter rolling rolling elements, wherein the WälzSystemhanfig to overcome a relation to the working diameter extended mounting diameter is radially elastically expandable.
  • a shaft for example, the transmission input shaft or transmission output shaft of a gearbox, in this case has a radial profile over the axial course, wherein the WälzSystem hofig be brought at least over parts of this radial profile and this must be radially elastically expandable.
  • slotted WälzSystem hofige are known, which are open on one side. In order nevertheless to guide them axially towards one another, corresponding regions which overlap in the peripheral direction are provided.
  • the invention is therefore based on the object to propose a closed WälzMechhimfig that extends radially elastically even with respect to the working diameter relatively large mounting diameters and therefore can be mounted without damage.
  • a WälzSystemhimfig to form a bearing rotatably mounted on a shaft components, in particular for the storage of a gear on a shaft of a gearbox with distributed over the circumference in the WälzSystem hofig received on a radially recessed bearing seat of the shaft with a predetermined diameter rolling rolling elements according to the invention achieved in that the Wälz- body cage to overcome a relative to the insert diameter enlarged mounting diameter is radially elastically expandable, the WälzSystemurafig distributed over the circumference several, arranged in the circumferential direction between pockets for receiving a rolling element diagonal webs and a Ratio of an elastic extension of the rolling element cage between mounting diameter and insert diameter greater than 1, 12 is.
  • the rolling elements may be needles or cylindrical rollers and be stored captive in the rolling element cage preferably made of plastic in an injection molding process. It has been shown to be advantageous for avoiding tilting effects and a tilt-proof mounting of a gearwheel on a shaft of a manual transmission, which can be manually operated, power-assisted or automated by means of a clutch actuator, if axially adjacent to one another two rows of rolling elements distributed over the circumference are arranged are.
  • the mounting of the Wälz analyses hifigs can be carried out due to its increased radial elasticity due to the multiply arranged diagonal webs on a mounting sleeve which corresponds approximately to the outer diameter of the radial extension of the shaft over which the rolling elements must be axially guided, wherein the rolling elements is applied to this mounting sleeve.
  • the Wälz analyses hisfig can be extended, for example, by 15% of its insert diameter.
  • the radial expansion can be regularly provided by a uniform distribution of several diagonal webs over the circumference, so that in the extension, the centering of the Wälz stresses in an advantageous way se preserved.
  • two diagonal webs at a distance of 180 ° or three diagonal webs at a distance of 120 ° may be distributed over the circumference of the rolling element cage.
  • An increase in the number of diagonal webs can also be advantageous if appropriate requirements.
  • both diagonal webs of a rolling element cage with two diagonal webs can be arranged in opposite directions, so that axial deviations of the rolling element cage sections are compensated for a radial expansion of the rolling element cage.
  • Figure 1 shows a mounting situation of a rolling element cage on a shaft
  • Figure 2 shows the rolling element cage of Figure 1 in an oblique view
  • Figure 3 shows the rolling element cage of Figures 1 and 2 in view along its axis of rotation;
  • Figure 4 shows the WälzMechhimfig of Figures 1 to 3 in section. Detailed description of the drawings
  • Figure 1 shows a section through a shaft 1 of a gearbox with a radial profiling, which is formed by the bearing seats 2, 3 of two different gears and an interposed radially opposite this radially enlarged annular rim 4.
  • the Wälz stressesmaschinefig 6 - 6 'in the mounting position - is recorded on the mounting sleeve 9 and extended by means of several, not apparent diagonal webs elastically on the mounting diameter D M.
  • the Wälz stressesmaschinefig 6 ' is pushed over the ring board 4 and positioned on the bearing seat 2, wherein the elastic under low bias diagonal webs again elastically contract to the insert diameter D E.
  • the ratio of the mounting diameter D M to the insert diameter D E is greater than 1, 12 in the embodiment shown and requires, for example, an extension of the rolling element cage 6 from an insert diameter D E of 38 mm to a mounting diameter D M of 43 mm. By using three diagonal webs distributed over the circumference, this radial extension can be formed elastically.
  • Figure 2 shows the WälzMechhimfig 6 of Figure 1 in an oblique view with the double rows in the pockets 10 rolling elements 7. Evenly distributed at an angle of 120 ° in the WälzMechhimfig 6, the diagonal webs 1 1 are arranged, which share the WälzMechthix 6 in three WälzMechlafigabête 12 , wherein the diagonal webs 1 1 connect them to form a one-piece WälzMechlafigs 6.
  • the Wälz stressesurafig is preferably made of plastic tool produced by means of an injection molding process.
  • the two rows of rolling elements 7 are separated by the central web 13.
  • Figure 2 shows a section through the Wälz analyses hisfig of Figure 2 along the central web 13.
  • the about the axis of rotation rotationally symmetric Wälz analyses hisfig 6 with each offset by 120 ° Diagonalstegen 1 1 allows a uniform radial extension of itself in relation to the diagonal bars 1 1 stiff designed Wälz stresses hofigabête 12 , so that substantially the diagonal webs 1 1 are elastically displaced and the Wälz stresses hisfigabschnit- 12 maintain their shape substantially, so that the captive recorded in these rolling elements 7 are particularly safe from loss.
  • Figure 4 shows a section of the rolling element cage 6 through the central axis.
  • the diagonal webs 1 1 are formed by circumferentially adjacent recesses 14, 15, each extending from the opposite end faces 16, 17 and extending axially beyond the central web 13.
  • the incisions 14, 15 are each formed substantially perpendicular to the end faces 16, 17.

Landscapes

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

Abstract

L'invention concerne une cage (6) de corps de roulement destinée à former un support d'éléments disposés de manière à tourner sur un arbre (1), notamment pour le montage d'une roue dentée sur un arbre (1) d'une boîte de vitesse avec des corps de roulement (7) roulants avec un diamètre d'insertion (DE) prédéfini sur un siège de palier (2) radialement enfoncé de l'arbre (1) et reçus dans la cage (6) de corps de roulement de manière répartie sur le pourtour, la cage (6) de corps de roulement pouvant être élargie de manière radialement élastique pour surmonter un diamètre de montage (DM) élargi par rapport au diamètre d'insertion (DE). Pour pouvoir insérer la cage (6) de corps de roulement dans des boîtes de vitesses modernes, il est proposé selon l'invention de prévoir, sur la cage (6) de corps de roulement, des traverses diagonales (11) réparties sur le pourtour et disposées dans la direction périphérique entre des poches (10) destinées à recevoir les corps de roulement, lesquelles traverses diagonales accroissent le rapport d'un élargissement élastique de la cage (6) de corps de roulement entre diamètre de montage (DM) et diamètre d'insertion (DE).
PCT/EP2010/060217 2009-08-20 2010-07-15 Cage de corps de roulement WO2011020657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009038334.4 2009-08-20
DE200910038334 DE102009038334A1 (de) 2009-08-20 2009-08-20 Wälzkörperkäfig

Publications (1)

Publication Number Publication Date
WO2011020657A1 true WO2011020657A1 (fr) 2011-02-24

Family

ID=42991467

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/060217 WO2011020657A1 (fr) 2009-08-20 2010-07-15 Cage de corps de roulement

Country Status (2)

Country Link
DE (1) DE102009038334A1 (fr)
WO (1) WO2011020657A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014088060A1 (fr) * 2012-12-06 2014-06-12 日本精工株式会社 Procédé pour produire un roulement à aiguilles du type coque
DE102015214467A1 (de) * 2015-07-30 2017-02-02 Schaeffler Technologies AG & Co. KG Kupplungsausrücklager

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013210693A1 (de) * 2013-06-07 2014-12-11 Schaeffler Technologies Gmbh & Co. Kg Lageranordnung für zwei benachbarte Zahnräder, insbesondere für zwei Gangräder in einem Doppelkupplungsgetriebe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260024A1 (fr) * 1974-02-06 1975-08-29 Skf Ind Trading & Dev
DE8715732U1 (de) * 1987-11-27 1988-01-14 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Geschlitzter Käfig, insbesondere für Nadellager
DE9006526U1 (de) 1990-06-09 1990-08-16 SKF GmbH, 8720 Schweinfurt Wälzlagerkäfig
DE4222175A1 (de) 1992-07-06 1994-01-13 Schaeffler Waelzlager Kg Wälzlagerkäfig
DE4337948A1 (de) * 1993-11-06 1995-05-11 Schaeffler Waelzlager Kg Wälzlagerkäfig aus elastischem Kunststoff
US20060104560A1 (en) * 2004-11-17 2006-05-18 Ntn Corporation Roller bearing assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260024A1 (fr) * 1974-02-06 1975-08-29 Skf Ind Trading & Dev
DE8715732U1 (de) * 1987-11-27 1988-01-14 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Geschlitzter Käfig, insbesondere für Nadellager
DE9006526U1 (de) 1990-06-09 1990-08-16 SKF GmbH, 8720 Schweinfurt Wälzlagerkäfig
DE4222175A1 (de) 1992-07-06 1994-01-13 Schaeffler Waelzlager Kg Wälzlagerkäfig
DE4337948A1 (de) * 1993-11-06 1995-05-11 Schaeffler Waelzlager Kg Wälzlagerkäfig aus elastischem Kunststoff
US20060104560A1 (en) * 2004-11-17 2006-05-18 Ntn Corporation Roller bearing assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014088060A1 (fr) * 2012-12-06 2014-06-12 日本精工株式会社 Procédé pour produire un roulement à aiguilles du type coque
DE102015214467A1 (de) * 2015-07-30 2017-02-02 Schaeffler Technologies AG & Co. KG Kupplungsausrücklager

Also Published As

Publication number Publication date
DE102009038334A1 (de) 2011-02-24

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