WO1993017252A1 - Roulement de roue folle silencieux - Google Patents

Roulement de roue folle silencieux Download PDF

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Publication number
WO1993017252A1
WO1993017252A1 PCT/EP1993/000220 EP9300220W WO9317252A1 WO 1993017252 A1 WO1993017252 A1 WO 1993017252A1 EP 9300220 W EP9300220 W EP 9300220W WO 9317252 A1 WO9317252 A1 WO 9317252A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
raceway
sleeve
change transmission
transmission according
Prior art date
Application number
PCT/EP1993/000220
Other languages
German (de)
English (en)
Inventor
Peter Giese
Wolfgang Steinberger
Original Assignee
Ina Wälzlager Schaeffler 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 Ina Wälzlager Schaeffler Kg filed Critical Ina Wälzlager Schaeffler Kg
Publication of WO1993017252A1 publication Critical patent/WO1993017252A1/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
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without 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
    • 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
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • 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
    • 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 present invention relates to a gear change transmission with at least one gear preferably mounted on a gear shaft via a needle bearing, which gear can be coupled to the gear shaft via a coupling element, radially between an inner raceway assigned to the gear shaft and an outer race assigned to a hub of the gearwheel
  • Such a gear change transmission is known for example from OE-PS 289 563 from the 1960s.
  • the gear is mounted on the gear shaft via a double row needle bearing.
  • Rolling gear wheels of this type are also referred to as idler gears.
  • the two rows of needles are provided in an X or 0 arrangement, so that the needles roll on raceways arranged at an angle to the axis of rotation of the roller bearing.
  • the cause of the idle gear screeching is the low friction value of the needle bearing cages, which cause howling noises when the gears rotate unloaded and at high speeds due to the inevitable play between the tooth flanks of the gears.
  • This document also refers to other measures that have already been carried out that should prevent the idler gear from turning. For example, it has been proposed to position some of the pockets of the cage slightly at an angle to the bearing axis so that the cage is braked or the friction is increased. However, since a needle driven obliquely to the bearing axis causes an axial thrust that causes the cage to move along the shaft, it is necessary to alternately tilt the pockets so that the axial thrusts caused by the individual needles cancel each other out. According to this document, however, this requirement is not easy to meet and the needle bearing cage is also exposed to great wear-promoting loads.
  • the gearwheel which is subjected to a pulse against the ends of the needles during the striking, is brought out of its now oblique direction of rotation, changing the wobble length and striking the associated raceway against further needles.
  • These processes happen in a jerky manner and obviously trigger the idling of the idler gear. It follows from this that the idling wheel creeper is prevented when the first shock impulse of the gear wheel against the needles does not occur at all, and the self-excited wobble oscillation cannot occur at all.
  • the present invention is therefore based on the object of preventing the wobbling movement of the gear wheel, which strongly influences the idling gear screeching, in a gearwheel change gearbox.
  • this object is achieved in that at least one of the raceways has at least one of its circumferential sections Circular curve deviating from a circular shape in such a way that at least one of the needles between the race curve and the race opposite to it is radially elastically biased.
  • a gear change transmission is proposed for the first time, in which the freely rotatable gear wheels are mounted on a gear shaft by means of radially preloaded roller bearings, with the idle gear screeching in gear change transmissions, in particular in motor vehicle transmissions, being prevented without problems.
  • the outer raceway assigned to the gearwheel is formed on the inner circumferential surface of a sleeve with a uniform wall thickness, which is connected to a cylindrical receptacle formed on the hub of the gearwheel, the sleeve being curved in the direction of the gear shaft to form the raceway curvature is.
  • the radial preload due to the track curvature must be so great that at least one needle is radially loaded in the area of the track curvature, and on the other hand the track curvature must be so elastic be flexible that it can nestle against the cylindrical receptacle of the hub.
  • the gearwheel is coupled to the transmission shaft and a radially directed force component acts on the gearwheel due to a torque introduced into the gearwheel. Since this radial force is stationary, but the sleeve rotates, the entire circumference of this sleeve passes through the line of action of this radial force. If the raceway curvature comes within the range of this radial force, it must yield to this force and yield to the cylindrical receptacle. Otherwise, the axis of rotation of the gear would constantly shift in the radial direction.
  • the sleeve has at its end faces radially inwardly directed ribs which are interrupted in the circumferential direction by at least one gap each. Each gap is limited by the on-board ends. Two gaps each formed on one of the end faces lie opposite one another and the casing of the sleeve has the raceway curvature between these two gaps. The radially inward facing rims cause the sleeve to have increased rigidity outside the raceway arch.
  • the casing of the sleeve has slots formed in the circumferential direction, with two slots opposite each other at a parallel distance. These slots then form a pair of slots, the casing of the sleeve between a pair of slots having the track curvature.
  • FIG. 2 shows a cross section of a sleeve, which is arranged between an indicated gear and a gear shaft,
  • FIG. 3 shows a perspective view of a sleeve with raceway curvatures, the sleeve being mounted on a gear shaft via a needle collar,
  • FIG. 4 shows a representation as in FIG. 2, but with a transversely cut front end face of a further possible embodiment of a curved track.
  • the motor vehicle transmission 1 shown in FIG. 1 has a housing 2 in which a transmission shaft 3 and a countershaft 4 are mounted via roller bearings 5, 6.
  • Freely rotatable gear wheels 7, which are referred to below as idler gears 8 are arranged on the gear shaft 3, and clutch clutches 9, via which the idler gears 8 are positively connected to the gear shaft 3.
  • the idler gears 8 mesh with gears 10 which are arranged on the countershaft 4.
  • the idler gears 8 are supported on the gear shaft 3 via needle rings 11, each of which consists of a roller bearing cage 12 and needles 13 arranged in this roller bearing cage 12.
  • a sleeve 14 is provided between the needle ring 11 and the idler gear 8, so that the needles 13 roll on raceways 15, 16, which are formed on the one hand on the inner lateral surface 17 of the sleeve 14 and on the other hand on the gear shaft 3.
  • FIG. 2 which, seen in cross section through the motor vehicle transmission 1, shows a partially illustrated idler gear 8 which is mounted on the gear shaft 3 via the needle ring 11.
  • the hub 18 of the idler gear 8 has a cylindrical receptacle 19 into which the sleeve 14 is inserted.
  • the sleeve 14 has raceway curvatures 20 in the direction of the gear shaft 3 on two circumferential sections.
  • This raceway arch 20 is flexible in the radial direction and, in this exemplary embodiment, is approximately crescent-shaped, the circumferential ends 21 of the raceway arch 20 transitioning into the circular shape of the raceway 15 without edges.
  • FIG. 3 shows a sleeve 14 which has on its end faces 22 radially inwardly directed rims 23.
  • the rims 23 are interrupted in the circumferential direction by gaps 24, each gap 24 being delimited in the circumferential direction by the rim ends 25.
  • Two gaps 24 each formed on one of the end faces 22 lie opposite one another and the jacket of the sleeve 14 is formed radially inward between these gaps, as a result of which the raceway arch 20 is formed.
  • Undercuts 26 are provided on the sleeve 14 at the points at which the ends 25 meet with the jacket of the sleeve 14. This measure is intended to reduce local tensions.
  • the raceway arch 20 does not have to extend over the entire axial length of the sleeve 14.
  • the sleeve shown in FIG. 4 has slots 27 formed on its jacket in the circumferential direction, which lie opposite one another at a parallel distance and form a pair of slots 28.
  • the jacket of the sleeve 14 between this pair of slots 28 is shaped radially inward and thereby forms the raceway curvature 20.
  • the number of track arches 20 can of course vary in the examples shown here.
  • the sleeve shape is also not limited to the designs shown here.
  • the sleeve 14 can be smooth cylindrical, the raceway arch 20 extending over the entire length of the sleeve 14, it can also have continuous rims 23 on its end faces 22, the jacket of the sleeve 14 over its entire length to form the raceway curvature 20 is curved radially inwards.

Landscapes

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

Abstract

Dans les boîtes de vitesses à roues dentées, les roues dites roues folles (8) sont logées de préférence sur l'arbre de transmission (3) au moyen de cages à aiguilles (11) et peuvent être accouplées à l'arbre par un élément d'accouplement. Si ces roues folles (8) ne sont pas soumises à une charge axiale et tournent à grande vitesse, il se produit un bruit dit grincement de roue folle. Pour éviter ce grincement, l'une au moins des aiguilles (13) de cette cage (11) est précontrainte élastiquement dans le sens radial entre les chemins de roulement associés (15, 16). Dans ce but, l'un au moins des chemins de roulement (15, 16) sur une section circonférentielle au moins présente une courbure (20) qui s'écarte de la circularité.
PCT/EP1993/000220 1992-02-19 1993-01-30 Roulement de roue folle silencieux WO1993017252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4204981A DE4204981A1 (de) 1992-02-19 1992-02-19 Geraeuschfreies losradlager
DEP4204981.4 1992-02-19

Publications (1)

Publication Number Publication Date
WO1993017252A1 true WO1993017252A1 (fr) 1993-09-02

Family

ID=6452060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/000220 WO1993017252A1 (fr) 1992-02-19 1993-01-30 Roulement de roue folle silencieux

Country Status (2)

Country Link
DE (1) DE4204981A1 (fr)
WO (1) WO1993017252A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9403308U1 (de) * 1994-02-28 1994-04-28 Schaeffler Waelzlager Kg Ausgleichsgetriebe für ein Kraftfahrzeug
DE19513668A1 (de) * 1995-04-11 1996-10-17 Schaeffler Waelzlager Kg Nadellager und Verfahren zu seiner Herstellung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29517752U1 (de) * 1995-11-09 1996-01-04 Schaeffler Waelzlager Kg Lagerung einer Greiferwelle
DE19781320B4 (de) * 1996-11-20 2006-03-23 Ina-Schaeffler Kg Wälzlager mit Geräuschdämpfung
DE19734980A1 (de) * 1997-08-13 1999-02-18 Schaeffler Waelzlager Ohg Zahnräderwechselgetriebe
DE10239741A1 (de) * 2002-08-29 2004-03-11 Ina-Schaeffler Kg Verteilergetriebe für ein Kraftfahrzeug
DE102007015998A1 (de) 2007-04-03 2008-10-09 Zf Friedrichshafen Ag Anordnung eines Zahnrades auf einer Hauptwelle eines Getriebes
GB0800796D0 (en) * 2008-01-17 2008-02-27 Rolls Royce Plc A bearing arrangement
DE102009029097B4 (de) * 2009-09-02 2018-12-13 Zf Friedrichshafen Ag Einrichtung zur Aufnahme von radial wirkenden Kräften bei Schiebe-Losrädern eines Getriebes
DE102012222279B4 (de) 2012-04-27 2015-06-11 Schaeffler Technologies AG & Co. KG Lagerstelle für die Wandlerhals-Lagerung eines Drehmomentwandlers
DE102012215443A1 (de) * 2012-08-31 2014-03-06 Zf Friedrichshafen Ag Anordnung zum gehäuseseitigen Lagern eines Wellen- oder Nabenelementes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913859A (en) * 1956-03-30 1959-11-24 Gen Motors Corp Method of making bearings
CH485957A (fr) * 1966-11-15 1970-02-15 Pitner Alfred Roulement à aiguilles
FR2036443A5 (fr) * 1969-03-14 1970-12-24 Pitner Alfred

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
FR1079848A (fr) * 1953-03-04 1954-12-02 Roulements A Aiguilles Sa Roulement et installation comportant un tel roulement
US3009748A (en) * 1958-07-24 1961-11-21 Roulements A Aiguilles Sa Accurately centered anti-friction bearing assembly
DE1909462U (de) * 1964-11-13 1965-02-04 Torrington Co Rollenlager.
DE1575611B1 (de) * 1966-06-02 1971-04-22 Skf Kugellagerfabriken Gmbh Lagerung eines auf einer getriebewelle eines kraftfahrzeug schaltgetriebes frei drehbaren zahnrades
FR95734E (fr) * 1966-11-15 1971-06-04 Pitner Alfred Roulement a aiguilles sans jeu.
FR2271443B2 (fr) * 1974-01-23 1977-06-10 Pitner Alfred
SU672412A1 (ru) * 1977-03-09 1979-07-05 Предприятие П/Я А-7677 Регулируемый генератор волновой передачи
DE2741057A1 (de) * 1977-09-13 1979-03-15 Zahnradfabrik Friedrichshafen Vorrichtung zum lagern von wellen in kraftfahrzeuglenkgetriebe
DE2801977A1 (de) * 1978-01-18 1979-07-19 Schaeffler Ohg Industriewerk Radialwaelzlager
FR2426829A1 (fr) * 1978-05-23 1979-12-21 Nadella Roulement radial a rattrapage de jeu
FR2426828A1 (fr) * 1978-05-23 1979-12-21 Nadella Roulement radial a rattrapage de jeu
DE3028696A1 (de) * 1980-07-29 1982-02-25 FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt Rollenlager, insbesondere nadellager
SU1218224A1 (ru) * 1983-04-29 1986-03-15 Марийский Ордена Дружбы Народов Политехнический Институт Им.А.М.Горького Генератор волн
SU1219851A1 (ru) * 1983-05-13 1986-03-23 Марийский Ордена Дружбы Народов Политехнический Институт Им.А.М.Горького Дисковый генератор волн (его варианты)
FR2650867B1 (fr) * 1989-08-10 1994-10-14 Nadella Palier radial a roulement precontraint et son application notamment aux suspensions d'automobiles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913859A (en) * 1956-03-30 1959-11-24 Gen Motors Corp Method of making bearings
CH485957A (fr) * 1966-11-15 1970-02-15 Pitner Alfred Roulement à aiguilles
FR2036443A5 (fr) * 1969-03-14 1970-12-24 Pitner Alfred

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9403308U1 (de) * 1994-02-28 1994-04-28 Schaeffler Waelzlager Kg Ausgleichsgetriebe für ein Kraftfahrzeug
DE19513668A1 (de) * 1995-04-11 1996-10-17 Schaeffler Waelzlager Kg Nadellager und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
DE4204981A1 (de) 1993-08-26

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