WO2014154422A1 - Entraînement de moyeu de roue muni d'un engrenage planétaire - Google Patents

Entraînement de moyeu de roue muni d'un engrenage planétaire Download PDF

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Publication number
WO2014154422A1
WO2014154422A1 PCT/EP2014/053602 EP2014053602W WO2014154422A1 WO 2014154422 A1 WO2014154422 A1 WO 2014154422A1 EP 2014053602 W EP2014053602 W EP 2014053602W WO 2014154422 A1 WO2014154422 A1 WO 2014154422A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel hub
fluid
rotary feedthrough
peripheral surface
sealing elements
Prior art date
Application number
PCT/EP2014/053602
Other languages
German (de)
English (en)
Inventor
Alexander Baar
Benjamin Rosenbaum
Raimund Grimm
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2014154422A1 publication Critical patent/WO2014154422A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00345—Details of the rotational joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00309—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres characterised by the location of the components, e.g. valves, sealings, conduits or sensors
    • B60C23/00318—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres characterised by the location of the components, e.g. valves, sealings, conduits or sensors on the wheels or the hubs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00363—Details of sealings

Definitions

  • the present invention relates to a wheel hub drive with a planetary gear, comprising a rotatably mounted on a stationary component via two bearings hub for receiving a tire with gaseous filling and at least one fluid-carrying line extending through the fixed member, the planetary gear and the rotatably mounted hub to extends to the tire to regulate the gas pressure in the tire.
  • the field of application of the invention extends in particular to motor vehicles, particularly preferably to off-highway motor vehicles.
  • loose ground such as mud, field, field or snow
  • the gas pressure in the tires can be reduced to set a larger and more resilient footprint of the tires.
  • the gas pressure in the tires can be increased to reduce rolling resistance and thereby reduce wear and consumption.
  • the drive of the wheel hub is usually either hydrostatically or electrically. Other drive options are also conceivable.
  • the hydrostatic drive comprises a hub which includes a first planetary stage and a second planetary stage.
  • the first planetary stage includes a sun gear, planetary gears, a planetary gear and a ring gear.
  • the second planetary stage includes a sun gear, planetary gears and a planetary ridge, which is rotatably connected via a sleeve with a pin.
  • the wheel hub is mounted by means of two support bearings on the pin, which is connected via a flange to the chassis of a vehicle. Between the two support bearings is a sleeve-shaped spacer.
  • the document DE 3 507 232 C2 discloses a compact wheel hub drive with a planetary gear mechanism.
  • a driven wheel hub is rotatably supported by means of rolling bearings.
  • Achsgephasekoruse emotionss the planetary gear for the drive of the wheel hub is arranged.
  • the planetary gear consists of a guided through the Achsgephasematimati pinion shaft having a sun gear at its end, from a planet carrier housing on which the meshing with the sun gear planet gears are mounted and which is connected for its own rotatable mounting and driving force transmission to the wheel hub and from a internally toothed ring gear, which meshes with the planetary gears and is stationary for transmitting the reaction torque in communication with the axle housing body.
  • a coupling wheel which engages with an external toothing on the outer peripheral edge in the internal toothing of the ring gear and is non-rotatably connected to the axle housing body detachably.
  • the detachable, the reaction torque transmitting connection of coupling wheel and axle housing body is that coupling wheel and axle housing are formed at their mutually facing end faces with a matching intermeshing teeth and the coupling wheel is firmly flanged to the front of the axle housing body.
  • a centering guide bearing is provided, the outer shell rests on the inner circumference of a provided with an air-bearing bore, designed as a cylindrical pot connection cover.
  • a central pin of the connection cover projecting axially inwards from the connection cover, is sealed by way of a sealing sleeve and protrudes into a central receiving bore of the half-wave.
  • the outer edge of the connection cover is connected via an elastic insert with the front side of the planet carrier of the wheel hub planetary gear.
  • the compressed air necessary for inflating the pneumatic tire is led via a connecting piece and through a bore of the universal joint housing into a connection housing, which ensures a loss-free forwarding of the air to an axial bore of a half-wave with the aid of O-rings and Simmerrings.
  • the half-wave is guided from the side of the connection housing through a roller bearing.
  • a Simmerring is installed.
  • the connection cover is connected via a flexible line to the valve which can be actuated from the driver's cab, from where the air can flow in via a valve line into the interior of the pneumatic tire.
  • the tire is mounted on a rim.
  • a rotary feedthrough formed as a ring and arranged axially between the two rolling bearings is arranged radially between the stationary component and the rotatably mounted wheel hub with at least one fluid-carrying channel for the fluidic connection of the rotatably mounted wheel hub to the stationary component.
  • the rolling bearings may be in particular tapered roller bearings, wherein the rotary feedthrough, sets by their axial dimension, the distance between the two bearings.
  • the rotary feedthrough is preferably formed of a metallic material, particularly preferably of a steel material.
  • two fluid-carrying channels offset over a peripheral surface of the rotary feedthrough are arranged for the fluidic connection of the rotatably mounted wheel hub to the stationary component.
  • the formation of two fluid-carrying channels in the rotary feedthrough via a first channel formed as a control channel to control a seat valve on the tire and to feed via a second channel, a gaseous medium, preferably compressed air, in the tire. It could also be the one channel of the supply of air to the tire and the other channel for the discharge of air from the tire, each of which could be controlled via a 2/2 way valve.
  • the two fluid-carrying channels are offset from each other in the circumferential direction of the rotary feedthrough.
  • a small axial dimension of the rotary feedthrough can be realized.
  • the rotary feedthrough has a plurality of transverse bores for the fluidic connection of the two rolling bearings.
  • the fluid-carrying channels are located outside of the transverse bores. Through the cross holes an oil exchange between the two bearings of the main bearing is realized. Thus, an oil supply and oil cooling of the two bearings are guaranteed.
  • At least two static sealing elements are arranged for the fluidic sealing of the at least one fluid-carrying channel in recesses provided for this purpose on an outer peripheral surface of the rotary feedthrough that is non-rotatably connected to an inner circumferential surface of the rotatably mounted wheel hub.
  • the static sealing elements may preferably be O-rings, square rings or X-rings or so-called quad rings.
  • at least two dynamic sealing elements for the fluidic sealing of the at least one fluid-carrying channel are arranged in recesses provided for this purpose on an inner peripheral surface of the rotary feedthrough that is rotationally movably connected to the outer circumferential surface of the stationary component.
  • the dynamic sealing elements may preferably be Simmerringe.
  • the recesses serve to receive the sealing elements and to position both axially and radially.
  • each channel has a total of four sealing elements.
  • the sealing elements facing the roller bearings seal the fluid-carrying channels to the outside, wherein arranged between the two fluid-carrying channels sealing elements, the fluid-carrying channels from each other from each other.
  • At least one radial bore for lubricating and cooling the two dynamic sealing elements in the rotary feedthrough is formed between the two dynamic sealing elements.
  • the arrangement of the two dynamic sealing elements between the two rolling bearings allows the formation of a radial bore which passes through the transverse bores and thus lubricates and cools the inner sealing elements. This increases the service life and the reliability of the sealing elements.
  • ne circumferential groove is formed on the inner peripheral surface of the rotary union or on an outer peripheral surface of the fixed component in axial agreement with the at least one fluid-carrying channel. Since a rotational movement takes place between the rotary feedthrough and the stationary component, a circumferential groove for the continuous supply of compressed air into the tire is present for each channel passing through the rotary feedthrough. Furthermore, a peripheral groove is preferably formed on the outer circumferential surface of the rotary feedthrough in axial coincidence with the at least one fluid-carrying channel. This is particularly advantageous for mounting the rotary feedthrough to the wheel hub, as an orientation of the rotary feedthrough is eliminated.
  • the invention includes the technical teaching that the planetary gear has at least one and at most three planetary stages.
  • FIG. 1 is a schematic sectional view of a wheel hub drive with a planetary gear, comprising a rotary feedthrough with two fluid-carrying channels,
  • FIG. 2 is a schematic sectional view of a partially illustrated wheel hub drive with planetary gear, comprising a rotary feedthrough with two fluid-carrying channels according to another embodiment
  • FIG. 3 is a schematic sectional view of a partially illustrated wheel hub drive with planetary gear, comprising a rotary feedthrough with a fluid-carrying channel and
  • the wheel hub drive comprises a wheel hub 4 rotatably mounted on a stationary component 2 via two rolling bearings 3a, 3b for receiving a tire (not shown here) with gaseous filling.
  • the stationary component 2, the planetary gear 1 and the rotatably mounted wheel hub 4 extend two fluid-carrying lines 5, of which only one can be seen in FIG.
  • the one conduit 5 opens into a first circumferential groove 13a formed on an outer peripheral surface of the stationary component 2, and the other conduit 5 discharges into a second circumferential groove 13b formed on the outer circumferential surface of the stationary component 2.
  • connection 14 for supplying a gaseous medium is arranged on each fluid-carrying line 5.
  • a connection 14 for supplying a gaseous medium is arranged on each fluid-carrying line 5.
  • Radially between the stationary component 2 and the rotatably mounted wheel hub 4 is a trained as a ring and axially between the two bearings 3a, 3b arranged rotary feedthrough. 6
  • the rotary leadthrough 6 has two fluid-carrying channels 7a, 7b, which in FIG. 1 are drawn in the same plane for the sake of simplicity, but in reality in scope direction are offset from each other and on the inner peripheral surface of the rotary union 6 by three dynamic sealing elements 1 1 a, 1 1 b, 1 1 c, which are arranged in designated recesses 10a ', 10b', 10c 'on the inner peripheral surface of the rotary union 6, are fluidly sealed from each other and to the front sides of the rotary leadthrough.
  • the rotary leadthrough 6 has three static sealing elements 9a, 9b, 9c which are arranged in recesses 10a, 10b, 10c provided therefor on the outer peripheral surface of the rotary leadthrough 6 for the fluidic sealing of the two fluid-carrying channels 7a, 7b from one another and to the end faces of the rotary leadthrough are.
  • a plurality of transverse bores 8 are formed on the end side in the rotary leadthrough 6 for the fluidic connection of the two rolling bearings 3a, 3b.
  • the two fluid-carrying channels 7a, 7b are opposite to the simplified representation arising appearance of Figure 1 respectively between two transverse bores 8.
  • the rotary feedthrough 6 has between two fluid-carrying channels 7a, 7b, two dynamic sealing elements 1 1 a, 1 1 b, which are arranged in recesses provided for this purpose 10a ', 10b' on the inner peripheral surface of the rotary feedthrough 6. Furthermore, two static sealing elements 9a, 9b are arranged in recesses 10a, 10b provided therefor on the outer peripheral surface of the rotary leadthrough 6 for the fluidic sealing of the two fluid-carrying channels 7a, 7b.
  • the rotary feedthrough 6 is sealed over a total of four further sealing elements, wherein two dynamic sealing elements 1 1 c, 1 1 d provided in recesses 10c ', 10d' on the inner peripheral surface of the Rotary feedthrough 6 are arranged and two static sealing elements 9a, 9b are provided in recesses provided for this purpose 10c, 10d on the outer peripheral surface of the rotary feedthrough 6.
  • the channels 7a and 7b and the unspecified radial ports can be located on these channels in the same axial plane. Their axial distance from each other is so great that the connection holes do not cut and enough mounting space is available.
  • FIG. 3 shows a partially illustrated wheel hub drive with planetary gear 1 according to a third embodiment.
  • the rotary feedthrough 6 has a single fluid-carrying channel 7. As a result, the rotary feedthrough 6 is axially more compact than the two embodiments described above. Furthermore, a total of only two static sealing elements 9a, 9b and two dynamic sealing elements 1 1 a, 1 1 b required, which are each arranged in designated recesses 10a, 10b, 10a ', 10b'. On the rotatably mounted wheel hub 4 only one holes 15 is formed and on the fixed component 2 only one groove thirteenth
  • FIG. 4 shows the rotary union 6 illustrated in FIG the plurality of incorporated in the end faces of the rotary feedthrough 6 transverse bores 8 can be seen. Furthermore, the fluid-carrying channel 7 can be seen.

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

Abstract

L'invention concerne un entraînement de moyeu de roue muni d'un engrenage planétaire, comprenant un moyeu de roue (4) monté de manière à pouvoir tourner sur un élément fixe (2) par l'intermédiaire de deux paliers à roulement (3a, 3b) et recevant un pneumatique rempli d'un fluide gazeux et au moins une conduite (5) d'acheminement du fluide qui s'étend jusqu'au pneumatique en traversant l'élément fixe, l'engrenage planétaire et le moyeu de roue monté de manière à pouvoir tourner, pour réguler la pression du gaz dans le pneumatique. Selon l'invention, un passage tournant réalisé sous la forme d'une bague et agencé axialement entre les deux paliers à roulement est disposé radialement entre l'élément fixe et le moyeu monté de manière à pouvoir tourner et est muni d'au moins un canal (7) d'acheminement d'un fluide pour mettre le moyeu de roue monté de manière à pouvoir tourner en communication fluidique avec l'élément fixe.
PCT/EP2014/053602 2013-03-27 2014-02-25 Entraînement de moyeu de roue muni d'un engrenage planétaire WO2014154422A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013205399.1 2013-03-27
DE102013205399.1A DE102013205399A1 (de) 2013-03-27 2013-03-27 Radnabenantrieb mit einem Planetengetriebe

Publications (1)

Publication Number Publication Date
WO2014154422A1 true WO2014154422A1 (fr) 2014-10-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/053602 WO2014154422A1 (fr) 2013-03-27 2014-02-25 Entraînement de moyeu de roue muni d'un engrenage planétaire

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Country Link
DE (1) DE102013205399A1 (fr)
WO (1) WO2014154422A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014210598A1 (de) * 2014-06-04 2015-12-17 Zf Friedrichshafen Ag Antreibbarer lenkbarer Radkopf
DE102014108028B3 (de) 2014-06-06 2015-09-24 Kessler & Co. Gmbh & Co. Kg Drehdurchführung für ein Kraftfahrzeugrad
DE102015213692A1 (de) 2015-07-21 2017-01-26 Robert Bosch Gmbh Radnabenantrieb

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391298B (de) * 1982-07-02 1990-09-10 Magyar Vagon Es Gepgyar Einrichtung zur zufuehrung bzw. ableitung von druckluft zu bzw. von luftreifen fuer kraftfahrzeuge mit einem radnaben-planetengetriebe-fahrwerk
EP0521719A1 (fr) * 1991-07-05 1993-01-07 Eaton Corporation Manchon et joint pour arbre moteur
EP0751016A1 (fr) * 1995-06-28 1997-01-02 Federal-Mogul Burscheid GmbH Dispositif d'étanchéification d'un conduit de gaz
JPH1016582A (ja) * 1996-07-02 1998-01-20 Mitsubishi Motors Corp ハブ減速機付車輪駆動装置
US20020112802A1 (en) * 2001-02-22 2002-08-22 D'amico Anthony T. Wheel end assembly with spindle sleeve
DE102004021161A1 (de) * 2004-04-29 2005-11-24 Kessler & Co. Gmbh & Co. Kg Drehdurchführung einer Reifendruckregelung
DE102009057158A1 (de) * 2009-12-05 2011-06-09 Kessler & Co. Gmbh & Co. Kg Drehdurchführung
EP2653323A1 (fr) * 2012-04-19 2013-10-23 DANA ITALIA S.p.A Ensemble d'axe pour système de gonflage de pneus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015818C2 (de) 1980-04-22 1982-08-19 Mannesmann AG, 4000 Düsseldorf Drehfeste Verbindung eines axial beweglichen Planetenträgers mit einem Zapfen, insbesondere dem Tragzapfen eines hydrostatischen Fahrgetriebes
DE3507232A1 (de) 1985-03-01 1986-09-04 O & K Orenstein & Koppel Ag, 1000 Berlin Radnabenantrieb mit planetengetriebe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391298B (de) * 1982-07-02 1990-09-10 Magyar Vagon Es Gepgyar Einrichtung zur zufuehrung bzw. ableitung von druckluft zu bzw. von luftreifen fuer kraftfahrzeuge mit einem radnaben-planetengetriebe-fahrwerk
EP0521719A1 (fr) * 1991-07-05 1993-01-07 Eaton Corporation Manchon et joint pour arbre moteur
EP0751016A1 (fr) * 1995-06-28 1997-01-02 Federal-Mogul Burscheid GmbH Dispositif d'étanchéification d'un conduit de gaz
JPH1016582A (ja) * 1996-07-02 1998-01-20 Mitsubishi Motors Corp ハブ減速機付車輪駆動装置
US20020112802A1 (en) * 2001-02-22 2002-08-22 D'amico Anthony T. Wheel end assembly with spindle sleeve
DE102004021161A1 (de) * 2004-04-29 2005-11-24 Kessler & Co. Gmbh & Co. Kg Drehdurchführung einer Reifendruckregelung
DE102009057158A1 (de) * 2009-12-05 2011-06-09 Kessler & Co. Gmbh & Co. Kg Drehdurchführung
EP2653323A1 (fr) * 2012-04-19 2013-10-23 DANA ITALIA S.p.A Ensemble d'axe pour système de gonflage de pneus

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