EP0996833A1 - Engrenage planetaire de retour - Google Patents

Engrenage planetaire de retour

Info

Publication number
EP0996833A1
EP0996833A1 EP98938692A EP98938692A EP0996833A1 EP 0996833 A1 EP0996833 A1 EP 0996833A1 EP 98938692 A EP98938692 A EP 98938692A EP 98938692 A EP98938692 A EP 98938692A EP 0996833 A1 EP0996833 A1 EP 0996833A1
Authority
EP
European Patent Office
Prior art keywords
gear
planet
toothed belt
gears
epicyclic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98938692A
Other languages
German (de)
English (en)
Inventor
Hans Richter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0996833A1 publication Critical patent/EP0996833A1/fr
Withdrawn legal-status Critical Current

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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/26—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members with members having orbital motion

Definitions

  • Returning epicyclic gears which have a ring gear having internal teeth, with a planet gear carrier which supports two planet gears which are connected to one another in a rotationally fixed manner, and a sun gear arranged coaxially with the ring gear.
  • the planet gears can have different diameters.
  • One planet gear meshes with the external toothing of the sun gear, while the other planet gear meshes with the internal toothing of the ring gear.
  • a disadvantage of this type of transmission is the inherently rigid transmission chain between the ring gear and the sun gear. This is particularly disadvantageous when vibrations occur. Another disadvantage is the fact that only part of the tooth flanks are in engagement with each other, which in turn promotes wear.
  • DE 39 18 348 C2 shows a two-wheel epicyclic gear with a ring gear having internal teeth and a sun gear having external teeth.
  • a rotating carrier supports two deflection rollers.
  • a roller support bearing is arranged on the rotating carrier, which holds a toothed belt in engagement with the internal toothing of the ring gear. This toothed belt runs over the two pulleys and from there it wraps around the sun gear.
  • the roller support bearing ensures that the toothed belt is in engagement with the internal toothing of the ring gear over a larger circumferential area.
  • the two deflection rollers ensure that the toothed belt is guided over a considerable part of the circumference of the sun gear.
  • a second stage is provided which is constructed identically to the first stage mentioned above. This avoids some of the disadvantages mentioned at the outset.
  • CONFIRMATION COPY The object is to operate the returning epicyclic gear of the type described at the beginning with toothed belts, it being intended to ensure that the forces acting on the planet gears should be as low as possible.
  • FIG. 3 shows a section along the line II-II in FIG. 1;
  • FIGS. 2 and 3 shows a top view of the two stages of FIGS. 2 and 3.
  • the fixed housing 1 has two internal teeth 2, and is thus designed as a ring gear.
  • a planet gear carrier 3 is mounted by the housing 1 and is rotated by an electric drive 4 carried by the housing 1.
  • a sun gear 5 is provided.
  • the sun gear has two external teeth 6.
  • the planet gear carrier 3 is supported via shafts 7 planet gear bodies 8 which have two first planet gears 9 and two second planet gears 10. These planet gears 9, 10 are rigidly connected to one another.
  • the first planet gears 9 are arranged at the level of the two internal gears 6.
  • the diameter of the first planet gears 9 is smaller than the diameter of the second planet gears 10.
  • the planet gears 10 are arranged at the level of the internal toothing 2. he two gear halves A and B are constructed identically.
  • two first planet gears 9 are provided in a 90 ° circular section of the planet gear carrier 3, over which an endless, tensioned toothed belt 11 runs. Between each two first planet gears 9 of a section, two pressure rollers 12 are provided, which hold the toothed belt 11 in engagement with the internal toothing 6.
  • the stage described above is the output stage.
  • the drive stage comprises two second planet gears 10, between which two further gear wheels 13 are arranged.
  • the pressure rollers 12 and the gears 13 are each rigidly connected to one another via shafts 14, these shafts 14 being supported by the planet gear carrier 3.
  • a further, endless toothed belt 15 runs over the two second planet gears 10 of a section and over the two further gears 13.
  • This further toothed belt 15 has internal and external toothing and is held in engagement with the internal toothing 2 by the second planet gears 10.
  • This further toothed belt 15 wraps around the second planet gears 10 over a substantial part of their circumference, in particular the part of the circumference facing the sun gear 5. It runs over the other gears 13 essentially over the part of its circumference facing away from the sun gear 5.
  • the diameter of the further gears 13 corresponds to the diameter of the second planet gears 10, while the diameter of the pressure rollers 12 corresponds to the diameter of the first planet gears 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne un engrenage planétaire de retour comportant un boîtier fixe (1) à denture intérieure (2). Ce boîtier abrite un porte-satellites (3) qui est mis en rotation par un entraînement. Cet engrenage comporte, en outre, une roue solaire (5) à denture extérieure (6). Le porte-satellites (3) loge des roues planétaires (9, 10) reliées entre elles de manière rigide. Les roues planétaires (9) sont reliées à la roue solaire (5) par une courroie dentée (11) et les roues planétaires (10) sont reliées à la denture intérieure (2) par une courroie dentée (15).
EP98938692A 1997-07-18 1998-07-20 Engrenage planetaire de retour Withdrawn EP0996833A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1997131004 DE19731004A1 (de) 1997-07-18 1997-07-18 Rückkehrendes Umlaufgetriebe
DE19731004 1997-07-18
PCT/EP1998/004505 WO1999004184A1 (fr) 1997-07-18 1998-07-20 Engrenage planetaire de retour

Publications (1)

Publication Number Publication Date
EP0996833A1 true EP0996833A1 (fr) 2000-05-03

Family

ID=7836218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98938692A Withdrawn EP0996833A1 (fr) 1997-07-18 1998-07-20 Engrenage planetaire de retour

Country Status (3)

Country Link
EP (1) EP0996833A1 (fr)
DE (1) DE19731004A1 (fr)
WO (1) WO1999004184A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2444694A1 (fr) * 2005-07-12 2012-04-25 Hamilton Sundstrand Corporation Train de transmission entraîné par courroie
ITMC20090014A1 (it) * 2009-02-03 2010-08-04 Gaposa Srl Riduttore epicicloidale.
US20120238392A1 (en) * 2011-03-16 2012-09-20 Alexander Serkh Belt Planetary Transmission
DE202018100553U1 (de) * 2018-02-01 2019-05-09 Peter Lutz Übersetzungsgetriebe sowie Windkraftanlage und elektrischer Antrieb für Fahrzeuge mit einem solchen Übersetzungsgetriebe
DE102018116331A1 (de) * 2018-07-05 2020-01-09 Contitech Antriebssysteme Gmbh Zahnriemen mit auf einander gegenüberliegend angeordneten und mit Verzahnungen versehenen Laufflächen, wobei die Schrägungswinkel der Verzahnungen zueinander gegensinnig orientiert sind sowie zugehöriges Zahnriemengetriebe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE71194T1 (de) * 1986-11-24 1992-01-15 Christian Salesse Bewegungswandler, besonders untersetzungsgetriebe.
DE3719006A1 (de) * 1987-06-06 1988-12-22 Ver Foerderung Inst Kunststoff Leichtbaugetriebe mit hoher untersetzung
DE3918348C2 (de) * 1989-06-06 1994-02-10 Fischer Michael Umlaufgetriebe mit Zahnriemen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9904184A1 *

Also Published As

Publication number Publication date
WO1999004184A1 (fr) 1999-01-28
DE19731004A1 (de) 1999-01-21

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