WO2002009998A1 - Dispositif d'actionnement d'un systeme de direction de vehicule - Google Patents

Dispositif d'actionnement d'un systeme de direction de vehicule Download PDF

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Publication number
WO2002009998A1
WO2002009998A1 PCT/EP2001/008116 EP0108116W WO0209998A1 WO 2002009998 A1 WO2002009998 A1 WO 2002009998A1 EP 0108116 W EP0108116 W EP 0108116W WO 0209998 A1 WO0209998 A1 WO 0209998A1
Authority
WO
WIPO (PCT)
Prior art keywords
planet
stepped
gears
shaft
planetary
Prior art date
Application number
PCT/EP2001/008116
Other languages
German (de)
English (en)
Inventor
Klaus Bundschu
Andreas Kruttschnitt
Original Assignee
Zf Lenksysteme 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 Zf Lenksysteme Gmbh filed Critical Zf Lenksysteme Gmbh
Publication of WO2002009998A1 publication Critical patent/WO2002009998A1/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
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/008—Changing the transfer ratio between the steering wheel and the steering gear by variable supply of energy, e.g. by using a superposition gear
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/2863—Arrangements for adjusting or for taking-up backlash
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H2001/2881—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output

Definitions

  • the invention relates to an actuating device of a vehicle steering device, according to the preamble of patent claim 1.
  • An actuating device for vehicle steering devices known from DE 197 23 358 A1 serves for the superimposed rotation angle transmission of two transmission inputs. While one transmission input is actuated by a steering handwheel and the other by a motor, the transmission output is connected to the steering transmission.
  • the actuating device is designed as a planetary gear, with its sun gear hub forming the transmission output and its sun gear sleeve coaxial with the sun gear hub forming the first transmission input.
  • the second transmission input is formed from a planet gear carrier, which carries planet gears and is concentric with this sun gear hub and the sun gear sleeve. Of the planet gears of the planet gear carrier, two are rotatably connected to one another and can be rotated coaxially about an axis defined in the planet gear carrier and in constant engagement with the sun gear hub and sun gear sleeve.
  • the ring gear and pinion are each larger than the width of the planet gear meshing with them.
  • This excess width is assigned to the meshing planet gear so that it projects on one side of the planet gear.
  • the pinion projects beyond an end face of the planet gear, which is opposite to that on which the excess width of the ring gear projects beyond the planet gear.
  • an additional gearwheel which is rotatable in the same axis as the planetary gear and which is each elastically braced relative to the planetary gear is mounted.
  • one of the additional gearwheels is in meshing engagement with the pinion alone and the other alone with the ring gear, so that one additional gearwheel is radially internally exciting while the other is radially externally exciting additional gear works.
  • the solution specified in claim 1 is based on the problem of designing an actuating device of the type specified at the beginning, which is designed as a play-free planetary gear transmission, in which the freedom from play is realized by means that are reliable and structurally simple.
  • the problem is solved by the features listed in the characterizing part of patent claim 1, in that the planetary gear transmission has at least one rigid and at least one torsionally elastic, prestressed step planet.
  • the advantages achieved by the invention are, in particular, that with the torsionally flexible step planet, which is self-adjusting when worn, the overall play of a planetary gear is compensated without adjusting the center distance, the solution being simple, inexpensive and small in size. It can be the inventive Solution for helical gearing and degree gearing of the gears of the planetary gear.
  • Advantageous developments of the invention are specified in the dependent claims.
  • Figure 1 is a backlash-free two-stage planetary gear transmission in longitudinal section.
  • FIG. 2 shows a backlash-free planetary gear as an actuating device for a vehicle steering device
  • FIG. 3 shows a stiffness characteristic of a planetary gear transmission according to the invention.
  • the drawing shows an actuating device designed as a planetary gear 1 with two step planets 2, 7. These step planets 2, 7 are held in a planet gear carrier 6 via roller bearings 21 and each carry two planet gears 4, 5 and 9, 10, which are connected to one another in pairs. While the planet gears 4, 5 of the one stepped planet 2 are rigidly connected by a shaft 3, the second shaft 8 is designed as a torsion bar (spring) and permits elastic rotation of the planet gears 9, 10 carried by it.
  • the planet gears 4, 5 and 9, 10 of the stepped planet 2, 7 are in constant toothed engagement with two sun gears 11, 12. One of these sun gears 1 1, 12 is connected to the transmission input 14, while the other is assigned to the transmission output 19.
  • the shaft 8, designed as a torsion bar, of the torsionally flexible step planet 7 is prestressed by a predetermined angle of rotation, so that the spring-back moment acts on both planet gears 9, 10. These lie with their tooth flanks on the tooth flanks of the special teeth that are in mesh with them. internal gears 1 1, 12 and exert a force on them. This force generates a torque that rotates the sun gears 1 1, 12 until they in turn rest against the tooth flanks of the planet gears 4, 5 of the rigid step planet 2.
  • all tooth flanks in engagement are resiliently in contact with one another, so that the total play of the planetary gear mechanism is compensated for up to a defined torque.
  • the force transmission takes place via the rigid or the torsionally flexible step planet 2 or 7.
  • a rigidity characteristic of a planetary gear 1 according to the invention is shown in FIG. 3.
  • a planetary gear with the functionality described can also be designed such that the planet gears of the stepped planet mesh with two ring gears or a ring gear and a sun gear.
  • the principle of operation can also be applied to compound planetary gear units.
  • the compensation of the overall play of the planetary gear is achieved by the rigid shaft of the torsionally flexible stepped planet receiving two planet gears, at least one of which is rotatably and without axial play on the shaft.
  • a torsion spring for example a helical or leg spring, is arranged on this shaft and connects the two planet gears in such a way that they can be rotated in a resilient manner relative to one another.
  • the configuration of the torsionally flexible step planet with a claw coupling acting as a stop which limits the angle of rotation in both directions of rotation, so that the torsionally flexible step planet absorbs a portion of the torque to be transmitted in the event of an excessive load on the planetary gear.
  • Fig. 1 shows a longitudinal section through an inventive planetary gear 1, which is designed as a translating two-stage gear.
  • step planets 2, 7 enable an input speed to be reduced or increased in both directions of rotation with low-noise operation and without play.
  • This version opens the application of the planetary gear 1 in all areas of the machine or. Vehicle construction in which stepped or stepped speeds are required.
  • FIG. 2 shows a preferred application of the planetary gear 1 in a vehicle steering device, in particular a longitudinal section of an actuating device of a servo-assisted steering device designed as a superposition gear.
  • a second gear input 15, 16, here shown as a worm 15 and worm wheel 16 is integrated.
  • the worm wheel 16 is connected to the planet gear carrier 6.
  • Steering handwheel 18, the servomotor 17 and the steering gear 20 are only shown symbolically as blocks.
  • the angle of rotation introduced by the driver into the steering handwheel 18 is initiated via the first transmission input 14 and the sun gear 11.
  • a gearbox output 19 connected in a rotationally fixed manner to the sun gear 12 is connected to the vehicle steering wheels via the steering gear 20.
  • a control unit not shown, which detects the adjustment of the steering angle and possibly other characteristic values influencing the steering characteristic via sensors, activates the servomotor 17, which acts on the second transmission input 15, 16 and thus on the planet gear carrier 6.
  • the transmission ratio between the transmission input 14 and the transmission output 19 is now determined by the direction of rotation and the speed of rotation of the servomotor 17, by superimposing the angle of rotation introduced via the steering handwheel 18.
  • a planetary gear 1 of the type specified is at any time in other steering devices, for. B. a mechanical steering device without steering assistance, can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Steering Mechanism (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne une boîte à train planétaire sans jeu (1), notamment pour un dispositif d'actionnement d'un système de direction de véhicule. Le dispositif d'actionnement est réalisé en tant que boîte à train planétaire et comprend au moins deux éléments planétaires étagés (2, 7) dont les deux satellites respectifs reliés ensemble (4, 5 et 9, 10) sont constamment engrenés avec d'autres roues dentées de la boîte à train planétaire (1), pourvues d'une denture intérieure ou extérieure. La boîte à train planétaire (1) présente au moins un élément planétaire étagé rigide (2) et au moins un élément planétaire étagé précontraint flexible (7).
PCT/EP2001/008116 2000-07-28 2001-07-13 Dispositif d'actionnement d'un systeme de direction de vehicule WO2002009998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000136937 DE10036937A1 (de) 2000-07-28 2000-07-28 Spielfreies Planetengetriebe, insbesondere für eine Betätigungseinrichtung einer Fahrzeug-Lenkvorrichtung
DE10036937.5 2000-07-28

Publications (1)

Publication Number Publication Date
WO2002009998A1 true WO2002009998A1 (fr) 2002-02-07

Family

ID=7650615

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/008116 WO2002009998A1 (fr) 2000-07-28 2001-07-13 Dispositif d'actionnement d'un systeme de direction de vehicule

Country Status (2)

Country Link
DE (1) DE10036937A1 (fr)
WO (1) WO2002009998A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1903254A1 (fr) * 2006-09-25 2008-03-26 Jtekt Corporation Dispositif de direction pour véhicule
WO2009106222A1 (fr) * 2008-02-26 2009-09-03 Maxon Motor Ag Train épicycloïdal sans jeu doté de satellites divisés qui sont préchargés par des barres de torsion disposées parallèlement à l’axe de rotation des satellites
EP1686287A3 (fr) * 2005-01-26 2010-01-06 Jtekt Corporation Appareil différentiel
WO2016131529A1 (fr) * 2015-02-17 2016-08-25 Renk Aktiengesellschaft Dispositif de transmission

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239968A1 (de) * 2002-08-30 2004-03-04 Zf Lenksysteme Gmbh Spielfreies Planetenradgetriebe
AU2003300572A1 (en) * 2002-11-29 2004-06-23 Continental Teves Ag And Co. Ohg Quiet, vibration-free superimposed transmission for a superimposed steering system
JP4248960B2 (ja) 2003-07-23 2009-04-02 株式会社デンソー 伝達比可変操舵装置
JP2006150994A (ja) * 2004-11-25 2006-06-15 Fuji Kiko Co Ltd 差動歯車装置を用いた可変操舵角機構
DE102005036127A1 (de) 2005-07-26 2007-02-01 Dr. Fritz Faulhaber Gmbh & Co. Kg Getriebeelement für ein spielfreies Getriebe, insbesondere für die Feinwerktechnik
KR100842324B1 (ko) * 2006-01-27 2008-07-01 주식회사 만도 자동차의 기어비 변환형 조향장치
CN104121335A (zh) * 2013-04-23 2014-10-29 刘绍全 双星轮行星减速机
KR101749375B1 (ko) 2013-12-06 2017-06-20 주식회사 만도 유성 기어 장치
DE102022106149A1 (de) 2022-03-16 2023-09-21 Schaeffler Technologies AG & Co. KG Lenkwinkelbegrenzungseinheit für Lenkeinheit und Lenkeinheit mit Lenkwinkelbegrenzungseinheit

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Publication number Priority date Publication date Assignee Title
FR2642496A1 (fr) * 1989-01-10 1990-08-03 Renault Mecanisme a demultiplication variable a commande electrique
RU1798566C (ru) * 1991-04-03 1993-02-28 Могилевский Машиностроительный Институт Планетарна передача
US5409431A (en) * 1993-11-02 1995-04-25 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Carrier-less, anti-backlash planetary drive system
US5704864A (en) * 1993-12-27 1998-01-06 Yugen Kaisha Sozoan Drive unit

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AT189469B (de) * 1955-11-17 1957-04-10 Me Ra Mechanische Regelanlagen Spielfreies Planetenrädergetriebe
GB1108194A (en) * 1965-10-26 1968-04-03 Cincinnati Milling Machines Lt Improvements relating to motion transmission mechanism
DE2925833A1 (de) * 1975-08-29 1981-01-15 Ver Flugtechnische Werke Spielfreier antrieb
US4811615A (en) * 1987-12-14 1989-03-14 Borg-Warner Automotive, Inc. Mechanism for eliminating gear rattle in a shiftable transmission
US5671636A (en) * 1996-01-24 1997-09-30 Heidelberg Harris Inc. Method and apparatus for preventing circumferential separation between two gears of a gear train
DE19723358B4 (de) * 1997-06-04 2010-07-29 Robert Bosch Gmbh Motorbetriebenes Servolenksystem
DE19757433A1 (de) * 1997-12-23 1999-06-24 Alpha Getriebebau Gmbh Planetenzahnradgetriebe mit Mitteln für einen Spielausgleich

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
FR2642496A1 (fr) * 1989-01-10 1990-08-03 Renault Mecanisme a demultiplication variable a commande electrique
RU1798566C (ru) * 1991-04-03 1993-02-28 Могилевский Машиностроительный Институт Планетарна передача
US5409431A (en) * 1993-11-02 1995-04-25 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Carrier-less, anti-backlash planetary drive system
US5704864A (en) * 1993-12-27 1998-01-06 Yugen Kaisha Sozoan Drive unit

Non-Patent Citations (1)

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DATABASE WPI Section PQ Week 199419, Derwent World Patents Index; Class Q64, AN 1994-157771, XP002185174 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1686287A3 (fr) * 2005-01-26 2010-01-06 Jtekt Corporation Appareil différentiel
EP1903254A1 (fr) * 2006-09-25 2008-03-26 Jtekt Corporation Dispositif de direction pour véhicule
US7699136B2 (en) 2006-09-25 2010-04-20 Jtekt Corporation Steering device for vehicle
WO2009106222A1 (fr) * 2008-02-26 2009-09-03 Maxon Motor Ag Train épicycloïdal sans jeu doté de satellites divisés qui sont préchargés par des barres de torsion disposées parallèlement à l’axe de rotation des satellites
KR101197598B1 (ko) 2008-02-26 2012-11-09 맥슨 모터 아게 회전의 선회축에 평행하게 배열된 스프링 바 수단에 의해 선하중이 가해진 이간된 유성 기어들을 구비하는 유격 없는 유성 기어 세트
US8313411B2 (en) 2008-02-26 2012-11-20 Maxon Motor Ag Backlash-free planetary gear unit with split planet gears, which are preloaded by spring bars arranged parallel to the planetary axis of rotation
WO2016131529A1 (fr) * 2015-02-17 2016-08-25 Renk Aktiengesellschaft Dispositif de transmission
US10400860B2 (en) 2015-02-17 2019-09-03 Renk Aktiengesellschaft Transmission arrangement

Also Published As

Publication number Publication date
DE10036937A1 (de) 2002-02-07

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