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WO1993015339A1 - Pinion mounting - Google Patents

Pinion mounting Download PDF

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Publication number
WO1993015339A1
WO1993015339A1 PCT/EP1993/000168 EP9300168W WO9315339A1 WO 1993015339 A1 WO1993015339 A1 WO 1993015339A1 EP 9300168 W EP9300168 W EP 9300168W WO 9315339 A1 WO9315339 A1 WO 9315339A1
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WO
WIPO (PCT)
Prior art keywords
pinion
bearing
wall
bearing wall
roller bearings
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.)
Ceased
Application number
PCT/EP1993/000168
Other languages
German (de)
French (fr)
Inventor
Gerhard Spindler
Peter Tiesler
Michael Schiffhauer
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of WO1993015339A1 publication Critical patent/WO1993015339A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion

Definitions

  • the invention relates to the mounting of a pinion, which is supported by two tapered roller bearings and a collar on a detachable bearing wall in a housing of an automatic transmission.
  • the invention has for its object to provide an axially short bearing for a pinion on the output side of the transmission, which is still suitable for absorbing large forces and can be easily assembled. It is achieved according to the invention in the case of storage of the type described in the introduction by the characterizing features of the first claim.
  • the US-PS 25 18 824 shows in Fig. 1 a tapered roller bearing for a bevel pinion.
  • the tapered roller bearings are supported on a collar of a bearing wall, which is detachably fastened with screws in the gear housing.
  • the transmission is very long overall, and so is the
  • the detachable wall also makes assembly easier, since the pinion can be inserted into the gearbox housing with the bearing pre-assembled.
  • the axial length is further increased if, in an embodiment of the invention, a ring gear according to FIG. 3 or a web of a planetary gear according to FIG. 2 is attached to the face of the pinion that faces away from the detachable wall.
  • a ring cylinder can be arranged in a space-saving manner in the detachable wall, in that an annular piston can be adjusted by pressure medium which is supplied via bores in the housing wall and the bearing wall. At the same time, d fastening screws can be arranged in the ring cylinder.
  • Bearing rollers run directly on a bearing surface of the detachable bearing wall or the pinion.
  • Fig. 1 shows an automatic transmission for
  • Fig. 2 shows an enlarged
  • Partial longitudinal section corresponding to the boundary line II in Figure 1 of an embodiment of the invention.
  • Fig. 3 shows a variant of an inventive
  • the automatic transmission has a hydrodynamic converter with a drive shaft 2, an electro-hydraulic control device 3, a powershift transmission 4 arranged coaxially to the drive shaft 2, in planetary construction, at the free end 5 of which a gear train is arranged.
  • a pinion 6 of this gear train drives an intermediate gear 7 and a pinion 27 and a spur gear, not shown, which drives 8 output shafts 9 and 10 via a differential.
  • the pinion 6 has a collar 11 on which tapered roller bearings 12 and 13 are fixed with a shaft nut 14 and a lock washer 15.
  • the tapered roller bearings 12 and 13 support the pinion 6 in a bearing wall 17 which is detachably fastened to a gear housing 16.
  • the tapered roller bearings 12, 13 have both inner and outer
  • bearing rings it is also possible that the running surfaces of the bearing rollers are formed directly on the bearing wall 17 or the collar 11.
  • the axial distance of the tapered roller bearings 12 and 13 from the teeth 18 of the pinion 6 is very small, so that the pinion 6 is very rigidly supported.
  • an annular cylinder 19 with an annular piston 20 is arranged in the bearing wall 17, which actuates a brake 21 when pressure medium is applied to it.
  • the pressure medium usually pressure oil, is fed through an angled channel 22.
  • Fig. 3 shows a variant with a bearing wall 24 which has a collar 25 on which the
  • Tapered roller bearings 12 and 13 are set by the shim 15 and the shaft nut 14. As a result, the tapered roller bearings move directly under the teeth 18 of the pinion 6.
  • a ring gear 26 of a planetary drive is attached to the end face of the pinion 6, which faces away from the bearing wall 24 (FIG. 3), so that the axial constructional structure is optimally used.
  • a web 28 of the planetary drive can be attached to the pinion 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Support Of The Bearing (AREA)

Abstract

The aim of the invention is to provide a rigid, longitudinally compact, easy-to-fit mounting for a pinion fitted inside the housing of an automatic gearbox. A detachable mounting wall (17) makes it possible to create a large opening, and allows pre-assembly of the pinion mounting. The pinion (6) has a collar (11) on which are mounted taper roller bearings (12, 13) with shaft nut (14) and retainer (15). The taper roller bearings (12, 13) carry the pinion (6) in the mounting wall (17), which is detachably secured to the gearbox housing (16). An annular cylinder (19) with an annular piston (20) is incorporated in a compact manner in the mounting wall (17) to operate a brake (21) when actuated by a pressure fluid.

Description

Lagerung eines Ritzels Storage of a pinion

Die Erfindung betrifft die Lagerung eines Ritzels, das sich über zwei Kegelrollenlager und einen Kragen an einer lösbaren Lagerwand in einem Gehäuse eines Automatgetriebes abstützt.The invention relates to the mounting of a pinion, which is supported by two tapered roller bearings and a collar on a detachable bearing wall in a housing of an automatic transmission.

Weil immer höhere Antriebsleistungen gefordert werden, wird der für das Getriebe im Kraftfahrzeug zur Verfügung stehende Bauraum sehr klein. Besonders bei Personenkraftwag mit quer zur Fahrtrichtung eingebautem Motor ist die axiale Baulänge sehr beschränkt. Gleichzeitig sollen aber Wünsche nach mehr Übersetzungsstufen erfüllt werden. Kritisch sind hierbei vor allem Bauteile an der Abtriebsseite des Getrieb die hohe Kräfte und Momente aufnehmen müssen.Because ever higher drive powers are required, the space available for the transmission in the motor vehicle becomes very small. The axial length is very limited, particularly in the case of a passenger car with a motor installed transversely to the direction of travel. At the same time, requests for more translation levels should be fulfilled. Components on the output side of the gearbox that have to absorb high forces and moments are particularly critical.

Der Erfindung liegt die Aufgabe zugrunde, eine axial kurzbauende Lagerung für ein Ritzel auf der Abtriebsseite des Getriebes zu schaffen, die trotzdem für die Aufnahme großer Kräfte geeignet ist und leicht montiert werden kann. Sie wird erfindungsgemäß bei einer Lagerung der eingangs beschriebenen Art durch die kennzeichnenden Merkmale des ersten Anspruchs gelöst.The invention has for its object to provide an axially short bearing for a pinion on the output side of the transmission, which is still suitable for absorbing large forces and can be easily assembled. It is achieved according to the invention in the case of storage of the type described in the introduction by the characterizing features of the first claim.

Die US-PS 25 18 824 zeigt in Fig. 1 eine Kegelrollenlagerung für ein Kegelritzel. Hierbei stützen sich die Kegelrollenlager an einem Kragen einer Lagerwand ab, die lösbar mit Schrauben im Getriebegehäuse befestigt ist. Das Getriebe ist insgesamt sehr lang, und auch dieThe US-PS 25 18 824 shows in Fig. 1 a tapered roller bearing for a bevel pinion. Here, the tapered roller bearings are supported on a collar of a bearing wall, which is detachably fastened with screws in the gear housing. The transmission is very long overall, and so is the

Lagerung des Kegelritzels trägt zur Verkürzung der Baulänge nicht bei. Demgegenüber überdecken sich bei der erfindungsgemäßen Lagerung der Kragen an der Gehäusewand un das Ritzel bzw. der Kragen am Ritzel und die Gehäusewand. Dadurch, daß die Lager einmal innerhalb der Verzahnung in dem anderen Fall mit geringem axialen Versatz angeordnet sind, entstehen nur relativ geringe Stützmomente und Lagerkräfte und geringe Geräuschanregungen im Lager. Ferner bewirkt die steife Lagerung, daß das Ritzel unter Last die guten Eingriffsverhältnisse beibehält und keine Geräusche erzeugt. Weiter geräuschmindernd wirkt sich der Umstand aus daß die lösbare Wand als Lagerträger vom Gehäuse entkoppelt ist und den Körperschall schlecht weiterleitet.Storage of the bevel pinion does not contribute to shortening the overall length. In contrast, in the bearing arrangement according to the invention, the collar on the housing wall and the pinion or the collar on the pinion and the housing wall overlap. Due to the fact that the bearings are arranged within the toothing in the other case with a small axial offset, only relatively low support moments and bearing forces and little noise excitation in the bearing arise. Furthermore, the rigid mounting means that the pinion maintains the good engagement conditions under load and does not generate any noise. The fact that the detachable wall as a bearing bracket is decoupled from the housing and transmits structure-borne noise poorly has a further noise-reducing effect.

Durch die lösbare Wand wird auch die Montage erleichtert, da das Ritzel mit der Lagerung vormontiert in das Getriebegehäuse eingesetzt werden kann. Dabei gewinnt man weiter axiale Baulänge, wenn man in Ausgestaltung der Erfindung an der Stirnseite des Ritzels, die der lösbaren Wand abgewandt ist, gemäß Fig. 3 ein Hohlrad oder gemäß Fig. 2 einen Steg eines Planetentriebs befestigt. Ferner ka raumsparend in der lösbaren Wand ein Ringzylinder angeordne werden, indem ein Ringkolben durch Druckmittel verstellbar ist, das über Bohrungen in der Gehäusewand und der Lagerwan zugeführt wird. Dabei können im Ringzylinder gleichzeitig d Befestigungsschrauben angeordnet werden.The detachable wall also makes assembly easier, since the pinion can be inserted into the gearbox housing with the bearing pre-assembled. The axial length is further increased if, in an embodiment of the invention, a ring gear according to FIG. 3 or a web of a planetary gear according to FIG. 2 is attached to the face of the pinion that faces away from the detachable wall. Furthermore, a ring cylinder can be arranged in a space-saving manner in the detachable wall, in that an annular piston can be adjusted by pressure medium which is supplied via bores in the housing wall and the bearing wall. At the same time, d fastening screws can be arranged in the ring cylinder.

Weitere Verbesserungen lassen sich dadurch erzielen, daß die lösbare Lagerwand aus Stahl besteht und dieFurther improvements can be achieved in that the detachable bearing wall consists of steel and the

Lagerrollen unmittelbar auf einer Lagerfläche der lösbaren Lagerwand bzw. des Ritzels laufen.Bearing rollers run directly on a bearing surface of the detachable bearing wall or the pinion.

Die Ansprüche und die Beschreibung enthalten Lösungsmerkmale, deren Bedeutung für den Fachmann leicht verständlich ist und einzeln oder in einer anderenThe claims and the description contain solution features, the meaning of which is easily understandable for the person skilled in the art and individually or in another

Kombination angewendet werden können.Combination can be applied.

In der Zeichnung sind Ausführungsbeispiele der Erfindu dargestellt. Fig. 1 zeigt ein Automatgetriebe fürExemplary embodiments of the invention are shown in the drawing. Fig. 1 shows an automatic transmission for

Personenkraftwagen, das für den Quereinbau vorgesehen ist;Passenger car intended for transverse installation;

Fig. 2 zeigt in vergrößertem Maßstab einenFig. 2 shows an enlarged

Teillängsschnitt entsprechend der Begrenzungslinie II in Fig. 1 einer erfindungsgemäßen Ausführung;Partial longitudinal section corresponding to the boundary line II in Figure 1 of an embodiment of the invention.

Fig. 3 zeigt eine Variante einer erfindungsgemäßenFig. 3 shows a variant of an inventive

Lagerung.Storage.

Das Automatgetriebe hat einen hydrodynamischen Wandler mit einer Antriebswelle 2, eine elektro-hydraulische Steuereinrichtung 3, ein koaxial zur Antriebswelle 2 angeordnetes Lastschaltgetriebe 4 in Planetenbauweise, an dessen freiem Ende 5 ein Räderzug angeordnet ist.The automatic transmission has a hydrodynamic converter with a drive shaft 2, an electro-hydraulic control device 3, a powershift transmission 4 arranged coaxially to the drive shaft 2, in planetary construction, at the free end 5 of which a gear train is arranged.

Ein Ritzel 6 dieses Räderzuges treibt ein Zwischenzahnrad 7 und ein Ritzel 27 sowie ein nicht dargestelltes Stirnrad, das über ein Differential 8 Abtriebswellen 9 und 10 antreibt.A pinion 6 of this gear train drives an intermediate gear 7 and a pinion 27 and a spur gear, not shown, which drives 8 output shafts 9 and 10 via a differential.

Das Ritzel 6 hat einen Kragen 11, auf dem Kegelrollenlager 12 und 13 mit einer Wellenmutter 14 und einer Sicherungsscheibe 15 festgelegt sind. Die Kegelrollenlager 12 und 13 lagern das Ritzel 6 in einer lösbar an einem Getriebegehäuse 16 befestigten Lagerwand 17 In der dargestellten Ausführung haben die Kegelrollenlager 12, 13 sowohl innere als auch äußereThe pinion 6 has a collar 11 on which tapered roller bearings 12 and 13 are fixed with a shaft nut 14 and a lock washer 15. The tapered roller bearings 12 and 13 support the pinion 6 in a bearing wall 17 which is detachably fastened to a gear housing 16. In the embodiment shown, the tapered roller bearings 12, 13 have both inner and outer

Lagerringe. Es ist jedoch auch möglich, daß die Laufflächen der Lagerrollen unmittelbar an der Lagerwand 17 oder dem Kragen 11 angeformt sind. Der axiale Abstand der Kegelrollenlager 12 und 13 von den Zähnen 18 des Ritzels 6 ist sehr gering, so daß sich eine sehr steife Lagerung des Ritzels 6 ergibt. In platzsparender Weise ist in der Lagerwand 17 ein Ringzylinder 19 mit einem Ringkolben 20 angeordnet, der eine Bremse 21 betätigt, wenn er mit Druckmedium beaufschlagt wird. Das Druckmedium, in der Regel Drucköl, wird durch einen abgewinkelten Kanal 22 zugeführt.Bearing rings. However, it is also possible that the running surfaces of the bearing rollers are formed directly on the bearing wall 17 or the collar 11. The axial distance of the tapered roller bearings 12 and 13 from the teeth 18 of the pinion 6 is very small, so that the pinion 6 is very rigidly supported. In a space-saving manner, an annular cylinder 19 with an annular piston 20 is arranged in the bearing wall 17, which actuates a brake 21 when pressure medium is applied to it. The pressure medium, usually pressure oil, is fed through an angled channel 22.

Weitere Vorteile erreicht man, indem man die Lagerwand 17 mit Schrauben 23 befestigt, die in dem Ringzylinder 19 angeordnet sind.Further advantages are achieved by fastening the bearing wall 17 with screws 23 which are arranged in the ring cylinder 19.

Die Fig. 3 zeigt eine Variante mit einer Lagerwand 24, die einen Kragen 25 aufweist, auf dem dieFig. 3 shows a variant with a bearing wall 24 which has a collar 25 on which the

Kegelrollenlager 12 und 13 durch die Einstellscheibe 15 und die Wellenmutter 14 festgelegt sind. Dadurch rücken die Kegelrollenlager unmittelbar unter die Zähne 18 des Ritzels 6.Tapered roller bearings 12 and 13 are set by the shim 15 and the shaft nut 14. As a result, the tapered roller bearings move directly under the teeth 18 of the pinion 6.

Arn Ritzel 6 ist an die Stirnseite, die von der Lagerwand 24 abgewandt ist, ein Hohlrad 26 eines Planetentriebs befestigt (Fig. 3), wodurch der axiale Baurau optimal genutzt wird. Anstelle des Hohlrades 26 kann, wie Fig. 2 zeigt, ein Steg 28 des Planetentriebs am Ritzel 6 befestigt sein. A ring gear 26 of a planetary drive is attached to the end face of the pinion 6, which faces away from the bearing wall 24 (FIG. 3), so that the axial constructional structure is optimally used. Instead of the ring gear 26, as shown in FIG. 2, a web 28 of the planetary drive can be attached to the pinion 6.

Bezu szeichenReference sign

Figure imgf000007_0001
Figure imgf000007_0001

Claims

A n s p r ü c h e Expectations 1. Lagerung eines Ritzels (6), das sich über zwei Kegelrollenlager (12, 13) und einen Kragen (25) an einer lösbaren Lagerwand (24) in einem Gehäuse (16) eines Automatgetriebes abstützt, dadurch g e k e n n z e i c h n e t , daß der an der Lagerwand (24) aus Stahl oder dem Ritzel (6) stirnseitig vorstehende Kragen (25, 11) durch das andere Bauteil (6, 17) hindurchgeführt ist.1. Storage of a pinion (6), which is supported by two tapered roller bearings (12, 13) and a collar (25) on a detachable bearing wall (24) in a housing (16) of an automatic transmission, characterized in that the on the bearing wall (24) made of steel or the pinion (6) protruding collar (25, 11) through the other component (6, 17). 2. Lagerung nach Anspruch 1, dadurch g e k e n n z e i c h n e t , daß an der Stirnseite des Ritzels (6), die der lösbaren Lagerwand (24) abgewandt ist, ein Hohlrad (26) oder ein Steg (28) eines Planetentriebs befestigt ist.2. Bearing according to claim 1, characterized in that a ring gear (26) or a web (28) of a planetary gear is attached to the end face of the pinion (6) which faces away from the detachable bearing wall (24). 3. Lagerung nach Anspruch 1, dadurch g e k e n n z e i c h n e t , daß die Lagerwand (17) eine Ringzylinder (19) hat, in dem ein Ringkolben (20) durch ein Druckmittel, das über einen Kanal (22) in einer Wand des Getriebegehäuses (16) und der Lagerwand (17) zugeführt wird, axial verstellbar ist und eine benachbarte Kupplung oder Bremse (21) betätigt.3. Bearing according to claim 1, characterized in that the bearing wall (17) has an annular cylinder (19) in which an annular piston (20) by a pressure medium via a channel (22) in a wall of the transmission housing (16) and the bearing wall (17) is fed, is axially adjustable and actuates an adjacent clutch or brake (21). 4. Lagerung nach Anspruch 3, dadurch g e k e n n z e i c h n e t , daß im Ringzylinder (19) Schrauben (23) zur Befestigung der Lagerwand (17) angeordne sind.4. Bearing according to claim 3, characterized in that screws (23) for fastening the bearing wall (17) are arranged in the ring cylinder (19). 5. Lagerung nach Anspruch 1, dadurch g e k e n n z e i c h n e t , daß die Lagerrollen der Kegelrollenlager (12, 13) unmittelbar auf einer Lagerfläche der Lagerwand (17) bzw. des Ritzels (6) laufen. 5. Bearing according to claim 1, characterized in that the bearing rollers of the tapered roller bearings (12, 13) run directly on a bearing surface of the bearing wall (17) or the pinion (6).
PCT/EP1993/000168 1992-01-29 1993-01-26 Pinion mounting Ceased WO1993015339A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924202375 DE4202375A1 (en) 1992-01-29 1992-01-29 STORAGE OF A PINION
DEP4202375.0 1992-01-29

Publications (1)

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WO1993015339A1 true WO1993015339A1 (en) 1993-08-05

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PCT/EP1993/000168 Ceased WO1993015339A1 (en) 1992-01-29 1993-01-26 Pinion mounting

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WO (1) WO1993015339A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628233A (en) * 1993-04-23 1997-05-13 Zf Friedrichshafen Ag Transmission with intermediate plate connected to transmission casing by gear supports

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532708A3 (en) * 1981-08-24 1984-03-09 Clocheau Michel Automatic transmission for transverse engined vehicles.
DE3741746A1 (en) * 1986-12-09 1988-06-16 Aisin Warner AUTOMATIC TRANSMISSION
WO1990007072A1 (en) * 1988-12-15 1990-06-28 Zahnradfabrik Friedrichshafen Ag Automatic gearbox for motor vehicles
EP0467752A1 (en) * 1990-07-17 1992-01-22 Regie Nationale Des Usines Renault S.A. Output gear assembly of an epicyclic gear of an automatic gearbox

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532708A3 (en) * 1981-08-24 1984-03-09 Clocheau Michel Automatic transmission for transverse engined vehicles.
DE3741746A1 (en) * 1986-12-09 1988-06-16 Aisin Warner AUTOMATIC TRANSMISSION
WO1990007072A1 (en) * 1988-12-15 1990-06-28 Zahnradfabrik Friedrichshafen Ag Automatic gearbox for motor vehicles
EP0467752A1 (en) * 1990-07-17 1992-01-22 Regie Nationale Des Usines Renault S.A. Output gear assembly of an epicyclic gear of an automatic gearbox

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 311 (M-436)(2034) 7. Dezember 1985 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628233A (en) * 1993-04-23 1997-05-13 Zf Friedrichshafen Ag Transmission with intermediate plate connected to transmission casing by gear supports

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Publication number Publication date
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