WO2014048422A1 - Gear device having a planet carrier - Google Patents

Gear device having a planet carrier Download PDF

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Publication number
WO2014048422A1
WO2014048422A1 PCT/DE2013/200083 DE2013200083W WO2014048422A1 WO 2014048422 A1 WO2014048422 A1 WO 2014048422A1 DE 2013200083 W DE2013200083 W DE 2013200083W WO 2014048422 A1 WO2014048422 A1 WO 2014048422A1
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WO
WIPO (PCT)
Prior art keywords
bearing
planet carrier
bearing ring
holder
rolling
Prior art date
Application number
PCT/DE2013/200083
Other languages
German (de)
French (fr)
Inventor
Thorsten Biermann
Harald Martini
Inaki Fernandez
Norbert Metten
Thomas Wiesneth
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 WO2014048422A1 publication Critical patent/WO2014048422A1/en

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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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0486—Gearings with gears having orbital motion with fixed gear ratio
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0427—Guidance of lubricant on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0479—Gears or bearings on planet carriers
    • 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
    • F16H57/082—Planet carriers
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
    • F16H2048/106—Differential gearings with gears having orbital motion with orbital spur gears characterised by two sun gears

Definitions

  • the invention relates to a transmission device with a planet carrier at least one planetary drive, a thrust bearing and fixed by the thrust bearing on the planet carrier Olfangschale, the planet carrier carries at least one set of planetary pinion planetary gears and with the set planet gears and the Olfangschale at least one bearing point a rotational axis of the planetary drive is rotatably mounted on a housing, and wherein the Olfangschale is axially fixed by means of the axial bearing on the planet carrier
  • EP 178 56 46 B1 shows a detail of a transmission, which is for example an automatic transmission of a motor vehicle.
  • automatic transmissions planetary drives are often installed, which have a planet carrier on which at least one set planet is rotatably mounted on planet pins.
  • the Olfangschale has a radial disc-shaped portion, which merges into the groove located radially outside of the Olfangschale and from which leads from a respective nozzle to one of the planet pins.
  • the planet pins are hollow and each provided with a transverse bore. The transverse bore leads to a bearing point, on which the respective planetary gear is rotatably mounted on one of the planet pins.
  • the planetary pin is seated with one end in the planet carrier such that an opening of the hollow planetary pin is laterally accessible.
  • the nozzle of the Olfangschale engages, so that from the channel starting through the respective planet pins through to the bearing point a lubricating channel is formed.
  • thrust bearings preferably in the execution of needle bearings, have one or two bearing rings designated as axial disks, rolling bodies arranged in an axial annular gap between the axial disks, and rolling races on the axial disks for the rolling bodies.
  • the planet carrier are mounted axially relative to the surrounding structure, for example with respect to another planetary carrier or a housing.
  • connecting components of the planet carrier are mounted axially on the planet carrier by means of the axial bearing.
  • the oil collecting tray is secured by means of the axial disks resting against the planet carrier in that its disk-shaped portion is clamped axially between a crank of the axial disk and a plane surface of the planet carrier.
  • the object of the invention is to provide a planetary drive with a simple to manufacture bearing assembly together with an efficient lubricating device.
  • the object is solved according to the subject of claim 1.
  • both the oil collecting tray and a bearing ring of a radial rolling bearing are fixed to the planet carrier by means of the axial bearing.
  • Planet carriers are often mounted rotatably about their axis of rotation about rolling or plain bearings directly in housings, especially when the planet carrier housings of transfer cases, for example, axle differential.
  • the bearings with these bearings are exposed to high loads and require high load capacities. These bearings have massive bearing rings and are often made consuming in machining processes.
  • the differential housing of modern differentials are preferably made by cold forming of sheet metal, because thereby the weight and the manufacturing costs can be saved in comparison to the still predominantly used differentials with solid housings.
  • the Design of simple and inexpensive to manufacture bearings is another step to reduce weight and cost savings.
  • the bearing formed from a thrust bearing and a radial bearing can be made very compact.
  • the bearing ring is an inner bearing ring with the inner Wälzlaufbahn, wherein the inner bearing ring is seated on the bearing seat.
  • the inner bearing ring is surrounded on the outside by the outer bearing ring, which sits in the housing.
  • the rolling elements are arranged, which may be balls, but are preferably rollers or needles.
  • the inner bearing ring and the outer bearing ring are preferably sleeves made of sheet metal.
  • Such a rolling bearing is inexpensive to manufacture and has a low weight.
  • the bearing ring for example, a sleeve on the bearing seat of the planet carrier, has the required track hardness for the rolling contact with the planet carrier.
  • the material of the planet carrier does not have to be hardened.
  • a further embodiment of the invention provides that the inner bearing ring of the radial roller bearing and the oil collecting tray are fixed by means of a bearing ring of the thrust bearing to the planet carrier.
  • the bearing ring has a Wälzlaufbahn for rolling elements of the thrust bearing, which are preferably rollers or needles, but could also be balls.
  • the bearing ring is a cold-formed part made of sheet metal, which has a circumferential annular groove, in which the Wälzlaufbahn annular disc-shaped running around the axis of rotation, is formed. From the annular groove go in both radial directions from brackets, which are either tabs, projections or annular disc-shaped sections. The brackets lying radially on the outside of the annular groove engage behind the oil trapping shell axially and the radial inside of the annular groove engage behind the bearing ring axially.
  • the planetary drive has at least one planet carrier and at least one set planetary gears.
  • the axis of rotation of the planetary drive is the central axis of the planet carrier, the sun wheel and possibly one Ring gear.
  • the planetary gears are rotatably mounted at a radial distance from the axis of rotation on planet pins about its own axis of rotation extending parallel to the central axis.
  • An embodiment of the invention provides a trained as a transfer case planetary drive, are mounted rotatably on the planet carrier two sets planetary gears. Each planet of the one set is meshed with a planet of the other set as well as with a sun gear, the planet gears of the one set of two sun gears and the planet wheels of the other set meshing with the other of the two sun gears.
  • the planetary drive is provided with at least one lubricating device.
  • the lubricating device has at least one oil collecting tray and at least one lubricant channel leading from the oil collecting tray to the planetary gear.
  • the oil collecting tray is formed with a groove which is open towards the axis of rotation and is delimited radially on the outside and at least one connecting piece.
  • lubricating oil is drawn from a sump or collected from oil mist or from directed lubricating oil flows by the oil collecting tray.
  • the lubricating oil is collected on rotation of the oil collecting tray around the axis of rotation in the channel and accumulates there in aligned with the centrifugal directions. From the gutter, the oil reaches the lubrication channel via the nozzles.
  • the lubrication channel may be composed of various sections and may be interconnected by various interconnected components such as the planetary carrier, structural members such as the respective planetary pin or connecting conduits, or structural members such as holes or channels in the nozzle and transverse bores in the respective ones Planet bolts, extend through.
  • An embodiment of the invention provides that the radial bearing itself is also part of the lubricating device. By means of pressure or centrifugal force the lubricating oil supplied to the radial bearing is conveyed through the annular gap of the radial bearing, which is permeable to the lubricating oil, in the direction of the oil collecting tray.
  • FIG. 1 shows a section of an embodiment of a planetary drive 1 cut along an axis of rotation 3 with a lubricating device 2, a planet carrier 4 rotatable about the axis of rotation 3.
  • a respective planetary gear 5 is at least one set of planetary gears 5 carried by the planet carrier 4 a bearing 9 rotatably mounted on a respective planet pin 6.
  • the planetary gears 5 are in meshing engagement with a sun gear 7.
  • Another sun gear 8 is disposed adjacent to the sun gear 7, which is only partially shown and which is in meshing engagement with a further set planetary gears, not shown.
  • the central axis of the planetary carrier 4 and the sun gears 7 and 8 is the rotation axis 3.
  • the planet carrier 4 has at least one bearing point a hollow cylindrical bearing seat 1 1 for a radial bearing 12.
  • the radial bearing 12 is seated in a housing 13 of a transmission device, not shown, and is a cylindrical roller bearing 14.
  • the cylindrical roller bearing 14 has the first bearing ring 26, which is an inner bearing ring 15 in this case, a second bearing ring 27, in this case, an outer bearing ring 16 is a series of first rolling elements 36 in the form of cylindrical rollers 17, of which only one is visible in Figure 1, and a cage 18.
  • the cylindrical rollers 17 are arranged in an annular gap 19 between Wälzlaufbahnen 20 and 21, are applied to the Wälzlaufbahnen 20 and 21 and are guided in the cage 18.
  • the inner Wälzlaufbahn 20 is formed on the inner bearing ring 15 and the outer Wälzlaufbahn 21 on the outer bearing ring 16.
  • the outer bearing ring 16 is seated in the housing 13.
  • the inner bearing ring 15 is designed cup-shaped, has a hollow cylindrical wall 22, a bottom 23 with hole 24 and an edge 25.
  • the hollow cylindrical wall 22 is seated on the bearing seat 1 1 of the planet carrier 4.
  • An the hollow cylindrical wall 22 is formed on the outside circumferentially about the rotation axis 3, the inner Wälzlaufbahn 20. From the hollow cylindrical wall 22 is radially flange-like edge 25 from.
  • the edge 25 is supported in an axial direction on the planet carrier 4 and in the other axial direction on a third bearing ring 28.
  • the lubricating device 2 has at least one oil collecting tray 10 with a groove 29 open towards the rotation axis 3 and may be provided with a plurality of lubricant channels leading from the oil collecting tray 10 to one of the planetary gears 5 or other gear components.
  • a radial disc-shaped section 30 merges into the channel 29 located radially on the outside of the oil-collecting tray 10.
  • the disc-shaped portion 30 extends from the groove 29 in the direction of the rotation axis 3 and is supported in an axial direction on the planet carrier 4 and in the other axial direction on the third bearing ring 28.
  • An axial bearing 31 is formed from an axial disc 32, the third bearing ring 28, rollers 33 and a cage 34.
  • a Axialmélzlaufbahn 35 for a number of second rolling elements 37 and a first holder 38 and a second holder 39 is formed.
  • the oil collecting tray 10 is axially fixed to the planet carrier 4 with the first holder 38 and the first bearing ring 26 is fixed axially to the planet carrier 4 by means of the second holder 39.
  • FIG. 2 shows the third bearing ring 28 in a longitudinal section along an axis of symmetry, with the axis of symmetry lying on the axis of rotation 3 in the illustration according to FIG.
  • the Axialskyelzlaufbahn 35 is surrounded by the first holder 38 which is annular disk-shaped.
  • the Axial maybelzlaufbahn 35 surrounds the second bracket 39 circumferentially.
  • the second holder 39 is annular disk-shaped.
  • the third bearing ring 28 has an axially extending in the depth of the annular groove 40.
  • the annular groove 40 is bounded radially by hollow cylindrical sections 41 and 42.
  • the groove base 43 is provided with the Axialskylzlaufbahn 35.
  • the third bearing ring 28 is the back of the Axialskylzlaufbahn 35 on the planet carrier 4 at.
  • FIG. 1 The first holder 38 and the second holder 39 are formed on the edge side of the annular groove 40.
  • the first holder 38 engages behind the portion 30 of the oil collecting tray 10.
  • the second holder 39 engages behind the edge 25 of the first bearing ring 26.
  • the planet carrier 4 is supported in an aligned with the axis of rotation 3 axial direction via the thrust bearing 31 on the housing 13.
  • the axial disc 32 abuts axially on a pin 44 and is centered with an edge 45 at this to the axis of rotation 3.
  • Cylindrical roller bearing 35 axial roller bearing inner bearing ring 36 first rolling element outer bearing ring 37 second rolling elements
  • Cylindrical rollers 38 first holder

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

Abstract

The invention relates to a gear device having a planet carrier of at least one planetary drive, an axial bearing and an oil drip pan fixed by the axial bearing to the planet carrier, wherein the planet carrier carries at least one set of planet wheels resting on planetary pins, and is mounted together with the set of planet wheels and the oil drip pan on the housing at at least one bearing point so as to be rotatable about a rotational axis of the planetary drive, and wherein the oil drip pan is axially fixed to the planet carrier by means of the axial bearing.

Description

Bezeichnung der Erfindung  Name of the invention
Getriebevorrichtung mit einem Planetenträger Gebiet der Erfindung Transmission device with a planet carrier Field of the invention
Die Erfindung betrifft eine Getriebevorrichtung mit einem Planetenträger wenigstens eines Planetentriebs, einem Axiallager und mit einer durch das Axiallager am Planetenträger fixierten Olfangschale, wobei der Planetenträger wenigstens einen Satz auf Planetenbolzen sitzender Planetenräder trägt und mit dem Satz Planetenräder sowie mit der Olfangschale an mindestens einer Lagerstelle um eine Rotationsachse des Planetentriebs rotierbar an einem Gehäuse gelagert ist, und wobei die Olfangschale mittels des Axiallagers axial an dem Planetenträger fixiert ist The invention relates to a transmission device with a planet carrier at least one planetary drive, a thrust bearing and fixed by the thrust bearing on the planet carrier Olfangschale, the planet carrier carries at least one set of planetary pinion planetary gears and with the set planet gears and the Olfangschale at least one bearing point a rotational axis of the planetary drive is rotatably mounted on a housing, and wherein the Olfangschale is axially fixed by means of the axial bearing on the planet carrier
Hintergrund der Erfindung Background of the invention
EP 178 56 46 B1 zeigt einen Ausschnitt eines Getriebes, welches beispielsweise ein Automatikgetriebe eines Kraftfahrzeugs ist. In Automatikgetrieben sind häufig Planetentriebe verbaut, welche einen Planetenträger aufweisen, an dem mindestens ein Satz Planeten auf Planetenbolzen drehbar gelagert ist. Die Olfangschale weist einen radialen scheibenförmigen Abschnitt auf, der in die radial außen der Olfangschale gelegene Rinne übergeht und von dem aus jeweils ein Stutzen zu einem der Planetenbolzen führt. Die Planetenbolzen sind hohl und jeweils mit einer Querbohrung versehen. Die Querbohrung führt zu einer Lagerstelle, an welcher das jeweilige der Planetenräder auf einem der Planetenbolzen drehbar gelagert ist. Der Planetenbolzen sitzt mit einem Ende so in dem Planetenträger, dass eine Öffnung des hohlen Planetenbolzens seitlich zugänglich ist. In diese Öffnung greift der Stutzen der Olfangschale ein, so dass von der Rinne ausgehend durch den jeweiligen Planetenbolzen hindurch bis hin zur Lagerstelle ein Schmierkanal ausgebildet ist. Häufig in Planetengetrieben verwendete Wälzlager sind Axiallager. Axiallager, vorzugsweise in der Ausführung von Nadellagern, weisen eine oder zwei als Axialscheiben bezeichnete Lagerringe, in einem axialen Ringspalt zwischen den Axialscheiben angeordnete Wälzkörper sowie Wälzlaufbahnen an den Axialscheiben für die Wälzkörper auf. Mit den Axiallagern sind die Planetenträger axial gegenüber der Umgebungskonstruktion, beispielsweise gegenüber einem weiteren Planetenträger oder einem Gehäuse, axial gelagert. Alternativ sind Anschlussbauteile des Planetenträgers mittels des Axiallagers axial an dem Planetenträger gelagert. Die Ölfangschale ist mittels der an dem Planetenträger anliegenden Axialscheiben dadurch gesichert, dass deren scheibenförmiger Abschnitt axial zwischen einer Kröpfung der Axialscheibe und einer Planfläche des Planetenträgers eingeklemmt ist. EP 178 56 46 B1 shows a detail of a transmission, which is for example an automatic transmission of a motor vehicle. In automatic transmissions planetary drives are often installed, which have a planet carrier on which at least one set planet is rotatably mounted on planet pins. The Olfangschale has a radial disc-shaped portion, which merges into the groove located radially outside of the Olfangschale and from which leads from a respective nozzle to one of the planet pins. The planet pins are hollow and each provided with a transverse bore. The transverse bore leads to a bearing point, on which the respective planetary gear is rotatably mounted on one of the planet pins. The planetary pin is seated with one end in the planet carrier such that an opening of the hollow planetary pin is laterally accessible. In this opening, the nozzle of the Olfangschale engages, so that from the channel starting through the respective planet pins through to the bearing point a lubricating channel is formed. Frequently used in planetary gear bearings are thrust bearings. Thrust bearings, preferably in the execution of needle bearings, have one or two bearing rings designated as axial disks, rolling bodies arranged in an axial annular gap between the axial disks, and rolling races on the axial disks for the rolling bodies. With the thrust bearings, the planet carrier are mounted axially relative to the surrounding structure, for example with respect to another planetary carrier or a housing. Alternatively, connecting components of the planet carrier are mounted axially on the planet carrier by means of the axial bearing. The oil collecting tray is secured by means of the axial disks resting against the planet carrier in that its disk-shaped portion is clamped axially between a crank of the axial disk and a plane surface of the planet carrier.
Beschreibung der Erfindung Description of the invention
Die Aufgabe der Erfindung ist es, einen Planetentrieb mit einer einfach herzustellenden Lageranordnung zusammen mit einer effizienten Schmiervorrichtung zu schaffen. Die Aufgabe ist nach dem Gegenstand des Anspruchs 1 gelöst. The object of the invention is to provide a planetary drive with a simple to manufacture bearing assembly together with an efficient lubricating device. The object is solved according to the subject of claim 1.
Erfindungsgemäß ist sowohl die Ölfangschale als auch ein Lagerring eines Radialwälzlagers mittels des Axiallagers an dem Planetenträger fixiert. Planetenträger sind häufig um ihre Rotationsachse über Wälz- oder Gleitlager drehbar direkt in Gehäusen gelagert, insbesondere dann, wenn die Planetenträger Gehäuse von Verteilergetrieben, beispielsweise von Achsdifferenzialen sind. Die Lagerstellen mit diesen Lagern sind hohen Belastungen ausgesetzt und verlangen hohe Tragfähigkeiten. Diese Lager weisen massive Lagerringe auf und sind oft aufwendig in spanabhebenden Prozessen hergestellt. Die Differenzialgehäuse von modernen Differenzialen sind bevorzugt durch Kaltumformen aus Blech hergestellt, weil dadurch das Gewicht sowie die Herstellkosten im Vergleich zu den noch vorwiegend verwendeten Differenzialen mit massiven Gehäusen gespart werden kann. Die Gestaltung von einfach und kostengünstig herzustellenden Lagerungen ist ein weiterer Schritt zur Gewichtsreduzierung und Kosteneinsparung. Die aus einem Axiallager und einem Radiallager gebildete Lagerstelle kann sehr kompakt ausgebildet werden. According to the invention, both the oil collecting tray and a bearing ring of a radial rolling bearing are fixed to the planet carrier by means of the axial bearing. Planet carriers are often mounted rotatably about their axis of rotation about rolling or plain bearings directly in housings, especially when the planet carrier housings of transfer cases, for example, axle differential. The bearings with these bearings are exposed to high loads and require high load capacities. These bearings have massive bearing rings and are often made consuming in machining processes. The differential housing of modern differentials are preferably made by cold forming of sheet metal, because thereby the weight and the manufacturing costs can be saved in comparison to the still predominantly used differentials with solid housings. The Design of simple and inexpensive to manufacture bearings is another step to reduce weight and cost savings. The bearing formed from a thrust bearing and a radial bearing can be made very compact.
Eine Ausgestaltung der Erfindung sieht vor, dass der Lagerring ein innerer Lagerring mit der inneren Wälzlaufbahn ist, wobei der innere Lagerring auf dem Lagersitz sitzt. Der innere Lagerring ist außen von dem äußeren Lagerring umgeben, welcher in dem Gehäuse sitzt. Zwischen den Lagerringen sind die Wälzkörper angeordnet, die Kugeln sein können, vorzugsweise aber Rollen oder Nadeln sind. Der innere Lagerring und der äußere Lagerring sind vorzugsweise Hülsen aus Blech. Ein derartiges Wälzlager ist kostengünstig herzustellen und weist ein geringes Gewicht auf. Der Lagerring, beispielsweise eine Hülse auf dem Lagersitz des Planetenträgers, weist die erforderliche Laufbahnhärte für den Wälzkontakt mit dem Planetenträger auf. Das Material des Planetenträgers muss nicht gehärtet werden. An embodiment of the invention provides that the bearing ring is an inner bearing ring with the inner Wälzlaufbahn, wherein the inner bearing ring is seated on the bearing seat. The inner bearing ring is surrounded on the outside by the outer bearing ring, which sits in the housing. Between the bearing rings, the rolling elements are arranged, which may be balls, but are preferably rollers or needles. The inner bearing ring and the outer bearing ring are preferably sleeves made of sheet metal. Such a rolling bearing is inexpensive to manufacture and has a low weight. The bearing ring, for example, a sleeve on the bearing seat of the planet carrier, has the required track hardness for the rolling contact with the planet carrier. The material of the planet carrier does not have to be hardened.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass der innere Lagerring des Radialwälzlagers und die Ölfangschale mittels eines Lagerrings des Axiallagers an dem Planetenträger fixiert sind. Der Lagerring weist eine Wälzlaufbahn für Wälzkörper des Axiallagers auf, die vorzugsweise Rollen oder Nadeln sind, die aber auch Kugeln sein könne. Der Lagerring ist ein Kaltumformteil aus Blech, welches eine umlaufende Ringnut aufweist, in welchem die Wälzlaufbahn ringscheibenförmig um die Rotationsachse verlaufend, ausgebildet ist. Von der Ringnut gehen in beide radiale Richtungen Halterungen ab, die entweder Laschen, Vorsprünge oder ringscheibenförmige Abschnitte sind. Die radial außen der Ringnut liegenden Halterungen hintergreifen die Ölfangschale axial und die radial innen der Ringnut liegenden hintergreifen den Lagerring axial. A further embodiment of the invention provides that the inner bearing ring of the radial roller bearing and the oil collecting tray are fixed by means of a bearing ring of the thrust bearing to the planet carrier. The bearing ring has a Wälzlaufbahn for rolling elements of the thrust bearing, which are preferably rollers or needles, but could also be balls. The bearing ring is a cold-formed part made of sheet metal, which has a circumferential annular groove, in which the Wälzlaufbahn annular disc-shaped running around the axis of rotation, is formed. From the annular groove go in both radial directions from brackets, which are either tabs, projections or annular disc-shaped sections. The brackets lying radially on the outside of the annular groove engage behind the oil trapping shell axially and the radial inside of the annular groove engage behind the bearing ring axially.
Der Planetentrieb weist zumindest einen Planetenträger und wenigstens einen Satz Planetenräder auf. Die Rotationsachse des Planetentriebs ist die Zentralachse des Planetenträgers, des Sonnenrades und möglicherweise eines Hohlrades. Die Planetenräder sind mit radialem Abstand zur Rotationsachse auf Planetenbolzen um eine eigene parallel zur Zentralachse verlaufende Rotationsachse drehbar gelagert. Eine Ausgestaltung der Erfindung sieht einen als Verteilergetriebe ausgebildeten Planetentrieb vor, an dessen Planetenträger zwei Sätze Planetenräder drehbar gelagert sind. Jeder Planet des einen Satzes steht mit einem Planeten des anderen Satzes sowie mit einem Sonnenrad im Zahneingriff, wobei die Planetenräder des einen Satzes mit einem von zwei Sonnenrädern und die Planetenräder des anderen Satzes mit dem anderen der zwei Sonnenräder im Zahneingriff stehen. The planetary drive has at least one planet carrier and at least one set planetary gears. The axis of rotation of the planetary drive is the central axis of the planet carrier, the sun wheel and possibly one Ring gear. The planetary gears are rotatably mounted at a radial distance from the axis of rotation on planet pins about its own axis of rotation extending parallel to the central axis. An embodiment of the invention provides a trained as a transfer case planetary drive, are mounted rotatably on the planet carrier two sets planetary gears. Each planet of the one set is meshed with a planet of the other set as well as with a sun gear, the planet gears of the one set of two sun gears and the planet wheels of the other set meshing with the other of the two sun gears.
Der Planetentrieb ist mit wenigstens einer Schmiervorrichtung versehen. Die Schmiervorrichtung weist wenigstens eine Ölfangschale und mindestens einen von der Ölfangschale zu dem Planetenrad führenden Schmierkanal auf. Die Ölfangschale ist mit einer zur Rotationsachse hin offenen und radial außen begrenzten Rinne und wenigstens einen Stutzen gebildet. Durch die Ölfangschale wird bei Rotation des Planetenträgers Schmieröl aus einem Sumpf geschöpft oder aus Ölnebel bzw. aus gerichteten Schmierölströmen aufgefangen. Das Schmieröl wird bei Rotation der Ölfangschale um die Rotationsachse in der Rinne gesammelt und staut sich dort in mit der Fliehkraft ausgerichtete Richtungen. Von der Rinne aus gelangt das Öl über die Stutzen in den Schmierkanal. Der Schmierkanal kann sich aus verschiedenen Abschnitten zusammensetzen und sich durch verschiedene miteinander wirkverbundene Bauteile, wie durch den Planetenträger, durch Bauelemente, wie durch den jeweiligen Planetenbolzen oder Verbindungsleitungen, bzw. durch Konstruktionselemente, wie durch Löcher oder Kanäle in dem Stutzen sowie Querbohrungen in dem jeweiligen Planetenbolzen, hindurch erstrecken. The planetary drive is provided with at least one lubricating device. The lubricating device has at least one oil collecting tray and at least one lubricant channel leading from the oil collecting tray to the planetary gear. The oil collecting tray is formed with a groove which is open towards the axis of rotation and is delimited radially on the outside and at least one connecting piece. When the planet carrier rotates, lubricating oil is drawn from a sump or collected from oil mist or from directed lubricating oil flows by the oil collecting tray. The lubricating oil is collected on rotation of the oil collecting tray around the axis of rotation in the channel and accumulates there in aligned with the centrifugal directions. From the gutter, the oil reaches the lubrication channel via the nozzles. The lubrication channel may be composed of various sections and may be interconnected by various interconnected components such as the planetary carrier, structural members such as the respective planetary pin or connecting conduits, or structural members such as holes or channels in the nozzle and transverse bores in the respective ones Planet bolts, extend through.
Eine Ausgestaltung der Erfindung sieht vor, dass das Radiallager selbst auch Bestandteil der Schmiervorrichtung ist. Durch Druck oder Fliehkraft dem Radiallager zugeführtes Schmieröl wird über den für das Schmieröl durchlässigen Ringspalt des Radiallagers hindurch in Richtung der Ölfangschale gefördert. Beschreibung der Zeichnungen An embodiment of the invention provides that the radial bearing itself is also part of the lubricating device. By means of pressure or centrifugal force the lubricating oil supplied to the radial bearing is conveyed through the annular gap of the radial bearing, which is permeable to the lubricating oil, in the direction of the oil collecting tray. Description of the drawings
Figur 1 zeigt einen Ausschnitt eines längs einer Rotationsachse 3 geschnittenen Ausführungsbeispiels eines Planetentriebs 1 mit einer Schmiervorrichtung 2 , einem um die Rotationsachse 3 rotierbaren Planetenträger 4. An dem Planetenträger 4 ist jeweils ein Planetenrad 5 wenigstens eines von dem Planetenträger 4 getragenen Satzes Planetenräder 5 jeweils an einer Lagerstelle 9 drehbar auf jeweils einem Planetenbolzen 6 gelagert. Von den Planetenrädern 5 und den Planetenbolzen 6 ist jeweils nur eins bildlich dargestellt. Die Planetenräder 5 stehen im Zahneingriff mit einem Sonnenrad 7. Ein weiteres Sonnenrad 8 ist benachbart zu dem Sonnenrad 7 angeordnet, welches nur teilweise dargestellt ist und welches im Zahneingriff mit einem nicht dargestellten weiteren Satz Planetenräder steht. Die Zentralachse des Planetenträgers 4 und der Sonnenräder 7 und 8 ist die Rotationsachse 3. FIG. 1 shows a section of an embodiment of a planetary drive 1 cut along an axis of rotation 3 with a lubricating device 2, a planet carrier 4 rotatable about the axis of rotation 3. At the planet carrier 4, a respective planetary gear 5 is at least one set of planetary gears 5 carried by the planet carrier 4 a bearing 9 rotatably mounted on a respective planet pin 6. Of the planetary gears 5 and the planetary pin 6 only one is shown in each case. The planetary gears 5 are in meshing engagement with a sun gear 7. Another sun gear 8 is disposed adjacent to the sun gear 7, which is only partially shown and which is in meshing engagement with a further set planetary gears, not shown. The central axis of the planetary carrier 4 and the sun gears 7 and 8 is the rotation axis 3.
Der Planetenträger 4 weist an zumindest einer Lagerstelle einen hohlzylindrischen Lagersitz 1 1 für ein Radiallager 12 auf. Das Radiallager 12 sitzt in einem Gehäuse 13 einer nicht weiter dargestellten Getriebevorrichtung und ist ein Zylinderrollenlager 14. Das Zylinderrollenlager 14 weist den ersten Lagerring 26, der in diesem Fall ein innerer Lagerring 15 ist, einen zweiten Lagerring 27, der in diesem Fall ein äußerer Lagerring 16 ist, eine Reihe erster Wälzkörper 36 in Form von Zylinderrollen 17, von denen in Figur 1 nur eine sichtbar ist, und einen Käfig 18 auf. Die Zylinderrollen 17 sind in einem Ringspalt 19 zwischen Wälzlaufbahnen 20 und 21 angeordnet, liegen an den Wälzlaufbahnen 20 und 21 an und sind in dem Käfig 18 geführt. Die innere Wälzlaufbahn 20 ist an dem inneren Lagerring 15 und die äußere Wälzlaufbahn 21 an dem äußeren Lagerring 16 ausgebildet. Der äußere Lagerring 16 sitzt in dem Gehäuse 13. The planet carrier 4 has at least one bearing point a hollow cylindrical bearing seat 1 1 for a radial bearing 12. The radial bearing 12 is seated in a housing 13 of a transmission device, not shown, and is a cylindrical roller bearing 14. The cylindrical roller bearing 14 has the first bearing ring 26, which is an inner bearing ring 15 in this case, a second bearing ring 27, in this case, an outer bearing ring 16 is a series of first rolling elements 36 in the form of cylindrical rollers 17, of which only one is visible in Figure 1, and a cage 18. The cylindrical rollers 17 are arranged in an annular gap 19 between Wälzlaufbahnen 20 and 21, are applied to the Wälzlaufbahnen 20 and 21 and are guided in the cage 18. The inner Wälzlaufbahn 20 is formed on the inner bearing ring 15 and the outer Wälzlaufbahn 21 on the outer bearing ring 16. The outer bearing ring 16 is seated in the housing 13.
Der innere Lagerring 15 ist napfförmig ausgeführt, weist eine hohlzylindrische Wand 22, einen Boden 23 mit Loch 24 und einen Rand 25 auf. Die hohlzylindrische Wand 22 sitzt auf dem Lagersitz 1 1 des Planetenträgers 4. An der hohlzylindrischen Wand 22 ist außen umfangsseitig um die Rotationsachse 3 die innere Wälzlaufbahn 20 ausgebildet. Von der hohlzylindrischen Wand 22 geht radial flanschartig der Rand 25 ab. Der Rand 25 ist in eine axiale Richtung an dem Planetenträger 4 und in die andere axiale Richtung an einem dritten Lagerring 28 abgestützt. The inner bearing ring 15 is designed cup-shaped, has a hollow cylindrical wall 22, a bottom 23 with hole 24 and an edge 25. The hollow cylindrical wall 22 is seated on the bearing seat 1 1 of the planet carrier 4. An the hollow cylindrical wall 22 is formed on the outside circumferentially about the rotation axis 3, the inner Wälzlaufbahn 20. From the hollow cylindrical wall 22 is radially flange-like edge 25 from. The edge 25 is supported in an axial direction on the planet carrier 4 and in the other axial direction on a third bearing ring 28.
Die Schmiervorrichtung 2 weist wenigstens eine Ölfangschale 10 mit einer zur Rotationsachse 3 hin offenen Rinne 29 auf und kann mit mehreren von der Ölfangschale 10 zu jeweils einem der Planetenräder 5 oder anderen Getriebebauteilen führenden Schmierkanälen versehen sein. Ein radialer scheibenförmiger Abschnitt 30 geht in die radial außen an der Ölfangschale 10 gelegene Rinne 29 über. Der scheibenförmige Abschnitt 30 erstreckt sich von der Rinne 29 in Richtung der Rotationsachse 3 und ist in eine axiale Richtung an dem Planetenträger 4 und in die andere axiale Richtung an dem dritten Lagerring 28 abgestützt. The lubricating device 2 has at least one oil collecting tray 10 with a groove 29 open towards the rotation axis 3 and may be provided with a plurality of lubricant channels leading from the oil collecting tray 10 to one of the planetary gears 5 or other gear components. A radial disc-shaped section 30 merges into the channel 29 located radially on the outside of the oil-collecting tray 10. The disc-shaped portion 30 extends from the groove 29 in the direction of the rotation axis 3 and is supported in an axial direction on the planet carrier 4 and in the other axial direction on the third bearing ring 28.
Ein Axiallager 31 ist aus einer Axialscheibe 32, dem dritten Lagerring 28, aus Rollen 33 und aus einem Käfig 34 gebildet. An dem dritten Lagerring 28 ist eine Axialwälzlaufbahn 35 für eine Reihe zweiter Wälzkörper 37 sowie eine erste Halterung 38 und eine zweite Halterung 39 ausgebildet. Die Ölfangschale 10 ist mit der ersten Halterung 38 axial an dem Planetenträger 4 und der erste Lagerring 26 ist mittels der zweiten Halterung 39 axial an dem Planetenträger 4 fixiert. Figur 2 zeigt den dritten Lagerring 28 in einem Längsschnitt entlang einer Symmetrieachse, wobei die Symmetrieachse in der Darstellung nach Figur 1 auf der Rotationsachse 3 liegt. Die Axialwälzlaufbahn 35 ist von der ersten Halterung 38, welche ringscheibenförmig ausgebildet ist, umgeben. Die Axialwälzlaufbahn 35 umgibt die zweite Halterung 39 umfangsseitig. Die zweite Halterung 39 ist ringscheibenförmig. Der dritte Lagerring 28 weist eine sich axial in die Tiefe erstreckende Ringnut 40 auf. Die Ringnut 40 ist radial durch hohlzylindrische Abschnitte 41 und 42 begrenzt. Der Nutgrund 43 ist mit der Axialwälzlaufbahn 35 versehen. Der dritte Lagerring 28 liegt rückseitig der Axialwälzlaufbahn 35 an dem Planetenträger 4 an. An axial bearing 31 is formed from an axial disc 32, the third bearing ring 28, rollers 33 and a cage 34. At the third bearing ring 28 is a Axialwälzlaufbahn 35 for a number of second rolling elements 37 and a first holder 38 and a second holder 39 is formed. The oil collecting tray 10 is axially fixed to the planet carrier 4 with the first holder 38 and the first bearing ring 26 is fixed axially to the planet carrier 4 by means of the second holder 39. FIG. 2 shows the third bearing ring 28 in a longitudinal section along an axis of symmetry, with the axis of symmetry lying on the axis of rotation 3 in the illustration according to FIG. The Axialwälzlaufbahn 35 is surrounded by the first holder 38 which is annular disk-shaped. The Axialwälzlaufbahn 35 surrounds the second bracket 39 circumferentially. The second holder 39 is annular disk-shaped. The third bearing ring 28 has an axially extending in the depth of the annular groove 40. The annular groove 40 is bounded radially by hollow cylindrical sections 41 and 42. The groove base 43 is provided with the Axialwälzlaufbahn 35. The third bearing ring 28 is the back of the Axialwälzlaufbahn 35 on the planet carrier 4 at.
Figur 1 : Die erste Halterung 38 und die zweite Halterung 39 sind randseitig der Ringnut 40 ausgebildet. Die erste Halterung 38 hintergreift den Abschnitt 30 der Ölfangschale 10. Die zweite Halterung 39 hintergreift den Rand 25 des ersten Lagerrings 26. Der Planetenträger 4 ist in eine mit der Rotationsachse 3 gleichgerichtete axiale Richtung über das Axiallager 31 an dem Gehäuse 13 abgestützt. Dabei liegt die Axialscheibe 32 axial an einem Zapfen 44 an und ist mit einem Rand 45 an diesem zur Rotationsachse 3 zentriert. FIG. 1: The first holder 38 and the second holder 39 are formed on the edge side of the annular groove 40. The first holder 38 engages behind the portion 30 of the oil collecting tray 10. The second holder 39 engages behind the edge 25 of the first bearing ring 26. The planet carrier 4 is supported in an aligned with the axis of rotation 3 axial direction via the thrust bearing 31 on the housing 13. In this case, the axial disc 32 abuts axially on a pin 44 and is centered with an edge 45 at this to the axis of rotation 3.
Bezugszeichen reference numeral
Planetentrieb 21 äußere WälzlaufbahnPlanet drive 21 outer Wälzlaufbahn
Schmiervorrichtung 22 hohlzylindrische WandLubricating device 22 hollow cylindrical wall
Rotationsachse 23 Boden Rotation axis 23 ground
Planetenträger 24 Loch  Planet carrier 24 holes
Planetenrad 25 Rand  Planet wheel 25 edge
Planetenbolzen 26 erster Lagerring  Planet pin 26 first bearing ring
Sonnenrad 27 zweiter Lagerring  Sun gear 27 second bearing ring
Sonnenrad 28 dritter Lagerring  Sun gear 28 third bearing ring
Lagerstelle 30 scheibenförmiger Abschnitt Bearing 30 disc-shaped section
Ölfangschale 31 Axiallager Oil catcher 31 Thrust bearing
Lagersitz 32 Axialscheibe  Bearing seat 32 Axialscheibe
Radiallager 33 Rolle  Radial bearing 33 roller
Gehäuse 34 Käfig  Housing 34 cage
Zylinderrollenlager 35 Axialwälzlaufbahn innerer Lagerring 36 erster Wälzkörper äußerer Lagerring 37 zweiter Wälzkörper Cylindrical roller bearing 35 axial roller bearing inner bearing ring 36 first rolling element outer bearing ring 37 second rolling elements
Zylinderrollen 38 erste Halterung Cylindrical rollers 38 first holder
Käfig 39 zweite Halterung  Cage 39 second bracket
Ringspalt 40 Ringnut  Annular gap 40 ring groove
innere Wälzlaufbahn 41 hohlzylindrischer Abschnitt inner Wälzlaufbahn 41 hollow cylindrical section
42 hohlzylindrischer Abschnitt 42 hollow cylindrical section
43 Nutgrund 43 groove base

Claims

Patentansprüche Patent claims
Getriebevorrichtung mit einem Planetenträger (4) wenigstens eines Planetentriebs (1 ), einem Axiallager (31 ) und mit einer durch das Axiallager (31 ) am Planetenträger (4) fixierten Ölfangschale (10), wobei der Planetenträger (4) wenigstens einen Satz auf Planetenbolzen (6) sitzender Planetenräder (5) trägt und mit dem Satz Planetenräder (5) sowie mit der Ölfangschale (10) an mindestens einer Lagerstelle um eine Rotationsachse (3) des Planetentriebs (4) rotierbar an einem Gehäuse (13) gelagert ist, und wobei die Ölfangschale (10) mittels des Axiallagers (31 ) axial an dem Planetenträger (4) fixiert ist, wobei an dem Planetenträger (4) ein Lagersitz (1 1 ) für ein Radiallager (12) ausgebildet ist, welches zumindest eine innere Wälzlaufbahn (20), eine äußere Wälzlaufbahn (21 ) und radial zwischen den Wälzlaufbahnen (20, 21 ) angeordnete ersten Wälzkörpern (36) aufweist, und wobei eine der Wälzlaufbahnen (20, 21 ) an einem ersten Lagerring (26) ausgebildet ist, welcher mittels des Axiallagers (31 ) axial an dem Planetenträger (4) fixiert ist. Transmission device with a planet carrier (4) of at least one planetary drive (1), an axial bearing (31) and with an oil catch tray (10) fixed to the planet carrier (4) by the axial bearing (31), the planet carrier (4) having at least one set of planetary bolts (6) carries seated planetary gears (5) and is rotatably mounted on a housing (13) with the set of planetary gears (5) and with the oil catch tray (10) at at least one bearing point about a rotation axis (3) of the planetary drive (4), and wherein the oil catch tray (10) is axially fixed to the planet carrier (4) by means of the axial bearing (31), a bearing seat (1 1) for a radial bearing (12) being formed on the planet carrier (4), which has at least one inner rolling raceway ( 20), an outer rolling raceway (21) and first rolling bodies (36) arranged radially between the rolling raceways (20, 21), and wherein one of the rolling raceways (20, 21) is formed on a first bearing ring (26), which is formed by means of the Axial bearing (31) is axially fixed to the planet carrier (4).
Getriebevorrichtung nach Anspruch 1 , in der die innere Wälzlaufbahn (20) an dem ersten Lagerring (26) ausgebildet ist, wobei der erste Lagerring (26) auf dem Lagersitz (1 1 ) sitzt. Transmission device according to claim 1, in which the inner rolling raceway (20) is formed on the first bearing ring (26), the first bearing ring (26) sitting on the bearing seat (1 1).
Getriebevorrichtung nach Anspruch 2, in der der erste Lagerring (26) ein innerer Lagerring (15) ist, welcher außenumfangsseitig die innere Wälzlaufbahn (20) aufweist, und an welchem außenumfangsseitig um die Rotationsachse (3) die ersten Wälzkörper (36) an der inneren Wälzlaufbahn (20) anliegen, wobei die ersten Wälzkörper (36) außen umfangsseitig von der äußeren Wälzlaufbahn (21 ) umgeben sind. Gear device according to claim 2, in which the first bearing ring (26) is an inner bearing ring (15) which has the inner rolling raceway (20) on the outer circumference, and on which the first rolling bodies (36) on the inner circumference around the axis of rotation (3). Rolling raceway (20), the first rolling elements (36) being surrounded on the outside circumference by the outer rolling raceway (21).
Getriebevorrichtung nach Anspruch 1 , in der die äußere Wälzlaufbahn (21 ) an einem zweiten Lagerring (27) ausgebildet ist, weicher den ersten Lagerring (26) außenumfangsseitig um die Rotationsachse (3) umgibt, wobei der zweite Lagerring (27) die äußere Wälzlaufbahn (21 ) aufweist und in dem Gehäuse (13) sitzt und wobei der Planetenträger (4) mittels des Axiallagers (31 ) axial an dem Gehäuse (3) abgestützt ist. 5. Getriebevorrichtung nach Anspruch 1 , in der das Axiallager (31 ) einen axial an dem Planetenträger (4) anliegenden dritten Lagerring (28) aufweist, wobei an dem dritten Lagerring (28) wenigstens eine Axialwälzlaufbahn (35) für zweite Wälzkörper (37) sowie eine erste Halterung (38) und eine zweite Halterung (39) ausgebildet sind, und wobei die Olfangschale (10) mit der ersten Halterung (38) und der ersteTransmission device according to claim 1, in which the outer rolling raceway (21) is formed on a second bearing ring (27), which surrounds the first bearing ring (26) on the outer circumference around the axis of rotation (3), wherein the second bearing ring (27) has the outer rolling raceway (21) and sits in the housing (13) and the planet carrier (4) is axially supported on the housing (3) by means of the axial bearing (31). 5. Transmission device according to claim 1, in which the axial bearing (31) has a third bearing ring (28) which rests axially on the planet carrier (4), with at least one axial rolling raceway (35) for second rolling elements (37) on the third bearing ring (28). and a first holder (38) and a second holder (39) are formed, and wherein the oil catcher (10) is connected to the first holder (38) and the first
Lagerring (26) mittels der zweiten Halterung (39) zumindest axial an dem Planetenträger (4) fixiert ist. Bearing ring (26) is fixed at least axially on the planet carrier (4) by means of the second holder (39).
Getriebevorrichtung nach Anspruch 5, in der die Axialwälzlaufbahn (35) umfangsseitig um die Rotationsachse (3) von der ersten Halterung (38) umgeben ist und die Axialwälzlaufbahn (35) umfangsseitig um die Rotationsachse (3) die zweite Halterung (39) umgibt. Transmission device according to claim 5, in which the axial rolling raceway (35) is surrounded by the first holder (38) on the circumference around the axis of rotation (3) and the axial rolling raceway (35) surrounds the second holder (39) on the circumference around the axis of rotation (3).
Getriebevorrichtung nach Anspruch 5, in dem der dritte Lagerring (28) eine sich axial in die Tiefe erstreckende Ringnut (40) aufweist, an deren Nutgrund (43) die Axialwälzlaufbahn (35) ausgebildet ist, wobei die Ringnut (40) rückseitig an dem Planetenträger (4) anliegt und wobei die erste Halterung (38) und die zweite Halterung (39) randseitig der Ringnut (40) ausgebildet sind und dabei die erste Halterung (38) wenigstens einen Abschnitt der Olfangschale (10) und die zweite Halterung (39) einen Abschnitt des ersten Lagerrings (26) axial hintergreifen. Gear device according to claim 5, in which the third bearing ring (28) has an annular groove (40) which extends axially into the depth, on the groove base (43) of which the axial rolling raceway (35) is formed, the annular groove (40) being on the back of the planet carrier (4) and wherein the first holder (38) and the second holder (39) are formed on the edge of the annular groove (40), and the first holder (38) holds at least a section of the oil catcher (10) and the second holder (39) axially engage behind a section of the first bearing ring (26).
8. Getriebevorrichtung nach Anspruch 7, in der wenigstens eine der Halterungen (38, 39) ringscheibenförmig ausgebildet ist, wobei die Rotationsachse (3) die Symmetrieachse der Halterung (38, 39) ist. 8. Transmission device according to claim 7, in which at least one of the holders (38, 39) is annular disk-shaped, the axis of rotation (3) being the axis of symmetry of the holder (38, 39).
PCT/DE2013/200083 2012-09-25 2013-07-31 Gear device having a planet carrier WO2014048422A1 (en)

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US9581193B2 (en) 2015-05-08 2017-02-28 Schaeffler Technologies AG & Co. KG Press-fit combination bearing
CN112392926B (en) * 2020-12-08 2022-05-10 徐工集团工程机械股份有限公司 Multi-stage planet carrier, multi-stage planet combination structure and multi-gear planet mechanism

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EP0738843A2 (en) * 1995-03-31 1996-10-23 Honda Giken Kogyo Kabushiki Kaisha Lubricating oil supply structure in planetary gear mechanism
EP0764798A2 (en) * 1995-09-20 1997-03-26 Ford-Werke Aktiengesellschaft Planet-carrier device with axial support
WO2001044695A1 (en) * 1999-12-14 2001-06-21 Ina-Schaeffler Kg Device for supplying lubricant to a planetary drive
EP1785646A1 (en) * 2005-11-12 2007-05-16 Schaeffler KG Planet carrier

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DE102008000900A1 (en) 2008-04-01 2009-10-08 Zf Friedrichshafen Ag planetary gear
DE102010036243A1 (en) 2010-09-03 2012-03-08 Schaeffler Technologies Gmbh & Co. Kg Planetary gear for transmitting drive torque in a vehicle and drive unit with the planetary gear

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EP0738843A2 (en) * 1995-03-31 1996-10-23 Honda Giken Kogyo Kabushiki Kaisha Lubricating oil supply structure in planetary gear mechanism
EP0764798A2 (en) * 1995-09-20 1997-03-26 Ford-Werke Aktiengesellschaft Planet-carrier device with axial support
WO2001044695A1 (en) * 1999-12-14 2001-06-21 Ina-Schaeffler Kg Device for supplying lubricant to a planetary drive
EP1785646A1 (en) * 2005-11-12 2007-05-16 Schaeffler KG Planet carrier
EP1785646B1 (en) 2005-11-12 2008-04-09 Schaeffler KG Planet carrier

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