WO2015188818A1 - Palier à roulement pour roue à chaîne de boîte de transfert - Google Patents

Palier à roulement pour roue à chaîne de boîte de transfert Download PDF

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Publication number
WO2015188818A1
WO2015188818A1 PCT/DE2015/200267 DE2015200267W WO2015188818A1 WO 2015188818 A1 WO2015188818 A1 WO 2015188818A1 DE 2015200267 W DE2015200267 W DE 2015200267W WO 2015188818 A1 WO2015188818 A1 WO 2015188818A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
output shaft
input shaft
sprocket
bearing ring
Prior art date
Application number
PCT/DE2015/200267
Other languages
German (de)
English (en)
Inventor
Manfred Winkler
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 WO2015188818A1 publication Critical patent/WO2015188818A1/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
    • F16C19/49—Bearings with both balls and rollers
    • 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
    • F16C2361/63—Gears with belts and pulleys
    • 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
    • F16C33/588—Races of sheet metal

Definitions

  • the invention relates to a roller bearing for a sprocket in a transfer case of a motor vehicle according to the preamble forming features of claim 1.
  • Transfer boxes are mainly used in four-wheel drive vehicles and serve for the variable distribution of the drive torque to the two vehicle axles.
  • Such a transfer case is known for example from WO 2005/115790 A1 and shown in fragmentary form in Figure 1 of the accompanying drawings.
  • transfer case 1 essentially consist of an input shaft 2, a not shown first output shaft 3 and also not shown second output shaft 4, wherein the input shaft 2 to the drive unit of the motor vehicle, such as an internal combustion engine , connected is.
  • the generally integral with the input shaft 2 or rotatably connected first output shaft 3 is connected via a first axle differential with a first axis of the motor vehicle, such as the rear axle, while the second output shaft 4 via a second axle differential with a second axis of the motor vehicle, for example Front axle, is connected.
  • the transfer case 1 further comprises a arranged on the input shaft 2 torque transmitting device 5 with a friction clutch 6 in order to distribute an input via the input shaft 2 introduced drive torque, if necessary, on the second output shaft 4.
  • the input shaft 2 and the second output shaft 4 are usually arranged offset to one another, wherein a chain drive is provided between the torque transmission device 5 and the second output shaft 4, a rotatably mounted on the input shaft 2 and rotatably coupled to the torque transfer device 5 coupled first sprocket 7, not shown in detail, non-rotatably connected to the second output shaft 4 and circulating in a lubricating oil sump second sprocket 8 and this interconnecting link chain 9 has.
  • the rotatable mounting of the first sprocket 7 on the input shaft 2 takes place via a rolling bearing 10, which, as shown in Figure 1 of the accompanying drawings clearly visible, inserted through a in a bearing holder 11 of the first sprocket 7 and a radial needle sleeve 12 and a coupling side Axial needle sleeve 13 existing radial-axial bearing is formed, the bearing needles roll on / on a shaft shoulder of the input shaft 2.
  • a disadvantage of such a type of roller bearing of the sprocket is that the radial needle sleeve must be assigned by the torque transmitted from the transmission to the sprocket high axial forces to avoid wear damage an additional Axialnadelhülse and thereby costs and costs for mounting the rolling bearing in the Increase bearing mount of the sprocket.
  • the shaft shoulder on the input shaft, on / on which the two needle roller bearings roll must be subjected to a separate heat treatment by hardening to be suitable as a wear-resistant raceway for the bearing needles, thereby causing further additional costs.
  • the additional plastic sealing ring has proved to be disadvantageous for closing the bearing support in the sprocket, since this is designed as a separate component and thus also further increases the cost and cost of mounting the roller bearing in the bearing seat of the sprocket.
  • the invention is therefore based on the object to design a roller bearing for a sprocket in a transfer case of a motor vehicle, with the comparable axial and radial loads as in the known rolling bearings can be accommodated and with the same time the cost of their assembly in the bearing seat of the sprocket can be reduced.
  • this object is achieved in a rolling bearing according to the preamble of claim 1 such that the rolling bearing between the first sprocket and the input shaft is formed as inserted into a bearing receptacle of the first sprocket combined cylindrical roller angular contact ball bearing, consisting of a one-piece outer bearing ring, a one-piece inner bearing ring and a number of bearing balls and a number of cylindrical rollers, which roll between the bearing rings in adjacent tracks and are guided in the circumferential direction in each case a cage, wherein the outer bearing axially on one side almost to the opposite outer diameter of the inner bearing ring extending right-angle flange has, by the switched off at the second output shaft or at a standstill of the first sprocket, a lubricating oil reservoir in the cylindrical roller angular contact ball bearings can be stored.
  • the outer bearing ring is formed on the axial side facing the flange with a peripheral rounding directed towards the inner bearing ring whose inner surface has a radius corresponding to half the diameter of the bearing balls and the outer raceway forms for the bearing balls.
  • the roller bearing formed according to the invention is characterized by the fact that the right-angled flange flange of the outer bearing ring extending to the inner bearing ring has a length such that between the free end and the opposite outer diameter of the inner bearing ring there is a flow gap for the cylindrical roller bearing. Angular contact ball bearing lubricating oil is formed.
  • the inventively designed roller bearing for a sprocket in a transfer case of a motor vehicle thus has over the known from the prior art sprocket roller bearings on the advantage that it is formed only by a both radial and axial loads receiving cylindrical roller angular contact ball bearings whose mounting is associated with a significantly reduced effort in the transfer case and thus also causes lower costs.
  • a cylindrical roller angular contact ball bearing there is no longer the need to subject the input shaft for producing a rolling body of a separate heat treatment by curing, since the cylindrical roller angular contact ball bearing in a conventional manner has a hardened inner bearing ring on which the cylindrical rollers and the bearing balls roll.
  • FIG. 1 shows a roller bearing for a sprocket in a transfer case of a motor vehicle according to the prior art
  • Figure 2 is an inventively designed roller bearing for a sprocket in a transfer case of a motor vehicle
  • Figure 3 shows the cylindrical roller angular contact ball bearings of the invention
  • a transfer case 1 of a motor vehicle which consists essentially of an input shaft 2, a non-illustrated first output shaft 3 and a likewise not shown second output shaft 4, wherein the input shaft 2 with the drive unit of the motor vehicle, for example a Internal combustion engine, is connected.
  • the integrally formed with the input shaft 2 or non-rotatably connected first output shaft 3 is connected via a not-shown first axle differential with a first axis of the motor vehicle, while the second output shaft 4 is connected via a likewise not shown second axle differential with a second axis of the motor vehicle.
  • the Vertei Transmissions 1 further comprises a arranged on the input shaft 2 torque transmitting device 5 with a friction clutch 6, to distribute an initiated via the input shaft 2 drive torque if necessary, to the second output shaft 4.
  • the input shaft 2 and the second output shaft 4 are offset from each other, wherein between the torque transmitting device 5 and the second output shaft 4, a chain drive is provided, which is mounted on a roller bearing 10 rotatably mounted on the input shaft 2 and rotatably coupled to the torque transfer device 5 first sprocket 7, a non-illustrated, non-rotatably connected to the second output shaft 4 and circulating in a lubricating oil sump second sprocket 8 and this interconnecting link chain 9 has.
  • the roller bearing 10 between the first sprocket 7 and the input shaft 2 is designed according to the invention as a combined cylindrical roller angular contact ball bearing 15 inserted into a bearing receptacle 11 of the first sprocket 7, which, as shown in more detail in FIG. consists of a one-piece outer bearing ring 16, a one-piece inner bearing ring 17 and a series of bearing balls 18 and a series of cylindrical rollers 19 which roll between the bearing rings 16, 17 in adjacent tracks 20, 21, 22, 23 and in the circumferential direction in each case a cage 24, 25 are guided.
  • This angular contact ball bearing is characterized in that its outer bearing ring 16 axially on one side almost to the opposite outer diameter of the inner bearing ring 17 extending rectangular flange 26 has, by the switched off at the second output shaft 4 and at standstill of the first sprocket 7 a lubricating oil supply in the cylindrical rollers Angular contact ball bearing 15 is storable.
  • the inner bearing ring 17 has at its outer diameter next to the bearing center axis 27 has a circumferential shoulder 28 to which axially on the one hand according to the radius of the bearing balls 18 groove-shaped inner raceway 22 is formed for the bearing balls 18 and the axially on the other hand, a vertical inboard 29 forms for the cylindrical rollers 19.
  • the outer bearing ring 16 is formed on the axial side facing the flange 26 with a peripheral rounding 30 directed towards the inner bearing ring 17, whose inner surface has a radius corresponding to half the diameter of the bearing balls 18 and the outer race 23 for the bearing balls 18 forms.
  • the rectangular flange flange 26 of the outer bearing ring 16 extending to the inner bearing ring 17 has such a length that a drain gap 31 is formed between its free end and the opposite outer diameter of the inner bearing ring 17, from which the the cylindrical roller angular contact ball bearing 15 flowing through the lubricating oil can flow continuously.

Landscapes

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

Abstract

L'invention concerne un palier à roulement, destiné à une roue à chaîne d'une boîte de transfert (1) d'un véhicule automobile, qui comprend un arbre d'entrée (2) reliée à l'unité d'entraînement du véhicule automobile, un premier arbre de sortie (3) relié solidairement en rotation à l'arbre d'entrée (2) et un second arbre de sortie (4), ainsi qu'un dispositif de transmission de couple (5) pourvu d'un embrayage (6). L'arbre d'entrée (2) et le second arbre (4) de sortie sont disposés de façon décalée l'un par rapport à l'autre et entre le dispositif de transmission de couple (5) et le second arbre de sortie (4) est disposée une transmission à chaîne qui est constituée d'une première roue à chaîne (7) montée à rotation sur l'arbre d'entrée (2) par le biais d'un palier à roulement (10), d'une seconde roue à chaîne (8) reliée solidairement en rotation au second arbre de sortie (4) et d'une chaîne à maillons (9) reliant lesdites roues à chaîne entre elles. Selon l'invention, le palier à roulement (10) entre la première roue à chaîne (7) et l'arbre d'entrée (2) est configuré en roulement combiné à billes à portée oblique (15) et à rouleaux cylindriques qui est inséré dans un logement de palier (11) de la première roue à chaîne (7) qui se compose d'une bague de palier extérieure (16) d'une seule pièce, d'une bague de palier intérieure (17) d'une seule pièce et d'une rangée de billes de roulement (18) ainsi que d'une rangée de rouleaux cylindriques (19). La bague de palier extérieure (16) comporte axialement sur un côté un rebord rectangulaire (26) qui s'étend à peu près jusqu'au diamètre extérieur opposé de la bague de palier intérieure (17), lequel rebord permet de stocker une réserve d'huile de lubrification dans le roulement à billes à portée oblique et à rouleaux cylindriques (15) lorsque la première roue à chaîne est au repos.
PCT/DE2015/200267 2014-06-13 2015-04-20 Palier à roulement pour roue à chaîne de boîte de transfert WO2015188818A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014211364.4A DE102014211364A1 (de) 2014-06-13 2014-06-13 Wälzlagerung für ein Kettenrad in einem Verteilergetriebe
DE102014211364.4 2014-06-13

Publications (1)

Publication Number Publication Date
WO2015188818A1 true WO2015188818A1 (fr) 2015-12-17

Family

ID=53541473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/200267 WO2015188818A1 (fr) 2014-06-13 2015-04-20 Palier à roulement pour roue à chaîne de boîte de transfert

Country Status (2)

Country Link
DE (1) DE102014211364A1 (fr)
WO (1) WO2015188818A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022041716A1 (fr) * 2020-08-31 2022-03-03 灵智信息服务（深圳）有限公司 Dispositif de satellite à engrènement interne, dispositif de roue de véhicule et véhicule

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107975535A (zh) * 2017-12-28 2018-05-01 洛阳普瑞森精密轴承有限公司 一种圆柱滚子和推力球的组合轴承

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968432C (de) * 1953-04-25 1958-02-13 Ind Schaeffler O H G Vereinigtes Radialnadel- und Schraegkugellager
US3462205A (en) * 1967-09-28 1969-08-19 Textron Inc Needle-roller bearing
JPS4833940U (fr) * 1971-08-31 1973-04-24
FR2792379A1 (fr) * 1999-04-16 2000-10-20 Skf France Dispositif de galet a roulement
WO2005115790A1 (fr) 2004-05-28 2005-12-08 Magna Drivetrain Ag & Co Kg Boite de transfert pour vehicules a moteur et lubrification de ladite boite

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR551761A (fr) * 1922-05-20 1923-04-13 Cie Applic Mecaniques Coussinet de butée applicable en particulier aux dispositifs d'embrayage
US2839343A (en) * 1953-04-24 1958-06-17 Schaeffler Ohg Industriewerk Radial needle and axial roller bearing
DE1910796U (de) * 1964-10-09 1965-02-25 Udo Von Collani Nadel-axial-radial-lager.
JP2006194402A (ja) * 2005-01-17 2006-07-27 Jtekt Corp 転がり軸受装置
DE102006034153B4 (de) * 2006-07-24 2018-02-08 Magna powertrain gmbh & co kg Getriebe
DE102012221855A1 (de) * 2012-11-29 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Wälzlager

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968432C (de) * 1953-04-25 1958-02-13 Ind Schaeffler O H G Vereinigtes Radialnadel- und Schraegkugellager
US3462205A (en) * 1967-09-28 1969-08-19 Textron Inc Needle-roller bearing
JPS4833940U (fr) * 1971-08-31 1973-04-24
FR2792379A1 (fr) * 1999-04-16 2000-10-20 Skf France Dispositif de galet a roulement
WO2005115790A1 (fr) 2004-05-28 2005-12-08 Magna Drivetrain Ag & Co Kg Boite de transfert pour vehicules a moteur et lubrification de ladite boite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022041716A1 (fr) * 2020-08-31 2022-03-03 灵智信息服务（深圳）有限公司 Dispositif de satellite à engrènement interne, dispositif de roue de véhicule et véhicule

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