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WO2001048395A1 - High performance torque transmitting device in particular for wind machine - Google Patents

High performance torque transmitting device in particular for wind machine Download PDF

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Publication number
WO2001048395A1
WO2001048395A1 PCT/FR2000/003657 FR0003657W WO0148395A1 WO 2001048395 A1 WO2001048395 A1 WO 2001048395A1 FR 0003657 W FR0003657 W FR 0003657W WO 0148395 A1 WO0148395 A1 WO 0148395A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
output shaft
support beam
blades
planetary gear
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.)
Ceased
Application number
PCT/FR2000/003657
Other languages
French (fr)
Inventor
Jean-Pierre Tromelin
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
Priority claimed from FR9916443A external-priority patent/FR2804726A1/en
Application filed by Individual filed Critical Individual
Priority to EP00993637A priority Critical patent/EP1254325A1/en
Priority to AU28575/01A priority patent/AU2857501A/en
Publication of WO2001048395A1 publication Critical patent/WO2001048395A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F16H1/36—Toothed gearings for conveying rotary motion with gears having orbital motion with two central gears coupled by intermeshing orbital gears
    • 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
    • F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F05B2240/52—Axial thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F05B2240/54—Radial bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/23—Geometry three-dimensional prismatic
    • F05B2250/232—Geometry three-dimensional prismatic conical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02078—Gearboxes for particular applications for wind turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Definitions

  • the present invention relates to a high efficiency torque transmission device, in particular for an eohenne
  • an eohenne consists of a tower carrying at its top a movable head according to the orientation of the wind on which are mounted blades, free to rotate under the influence of the wind, intended to provide a torque, i.e. a certain driving force in rotation to a transmission shaft connected to a multiplier in order to increase this torque before being transmitted to a generator
  • the object of the invention is to propose a high-efficiency torque transmission device for an eohenne which makes it possible to solve all or part of the aforementioned drawbacks, in particular a device capable of transmitting high torque without inducing excessive stresses in the various links. drive
  • the subject of the present invention is a high-efficiency torque transmission device, in particular for an eohenne, comprising an envelope mounted to rotate freely around a support beam on which the blades of the wind turbine are fixed and inside which is housed a mechanism for multiplying the nominal speed of said blades which cooperates on the one hand with the casing and on the other hand with the output shaft intended to be coupled in particular to a generator, characterized in that the envelope is mounted to rotate freely around the support beam by means of a tapered bearing disposed at each end of the envelope, said envelope resting on the outer ring of the bearings
  • a high-efficiency torque transmission device in particular for an eohenne, comprising an envelope freely mounted in rotation around a support beam on which the blades of the wind turbine are fixed and to the inside which is housed a mechanism for multiplying the nominal speed of said blades which cooperates on the one hand with the casing and on the other hand with the output shaft intended to be coupled in particular to a generator, characterized in
  • this mechanism consists of at least one planetary gear train comprising three satellites spaced angularly in a regular manner and each carried by a shaft parallel to the output shaft on which is mounted a driving pinion which meshes with a pinion integral with said output shaft,
  • the casing is mounted to rotate freely around the support beam by means of a tapered bearing disposed at each end of the casing
  • the multiplication mechanism advantageously consists of a succession of at least three planetary gear trains, preferably four,
  • each of the support shafts of the planetary gear trains is fixed to the support beam
  • the drive ring is produced by internal machining of the casing
  • Another object of the present invention relates to an eohenne characterized in that it comprises a torque transmission device conforming to any of the characteristics mentioned above
  • FIG. 1 is a side view of the head of an eohenne provided with the device according to the invention
  • FIG. 2 is a partial section view of the device according to the invention.
  • FIG. 3 is a sectional view along the line III-III of FIG. 2,
  • FIG. 4 is a sectional view along line IV-IV of FIG. 2,
  • FIG. 5 is a sectional view along the line V-V of FIG. 2, and
  • FIG. 6 is a sectional view along line VI-VI of Figure 2
  • This device 2 comprises a casing 3 mounted to rotate freely around a support beam 4 by means, for example, of a tapered bearing C disposed at each end of the latter, and a speed multiplication mechanism 5 nominal of the blades 1 which is connected to an output shaft 6 and housed inside said casing
  • This output shaft 6, also designated drive shaft, is conventionally coupled to a generator, not shown, disposed in the movable head of wind
  • the casing 3 is provided at its outer periphery with fastening means 7 for the blades 1 and at its internal periphery with a drive ring 8, as visible in FIG. 2, which is coupled with the mechanism multiplication 5 thus forming the input ring of the torque to be transmitted to the generator, this torque is formed by the recovery of the induced rotary movement of the blades of the wind turbine
  • the drive ring is advantageously made by internal machining of the casing 3
  • the multiplication mechanism 5 consists of a succession of four planetary gear trains T1, 12,
  • the first tram T1 as visible in FIG. 3, meshes with the drive ring 8 and the last train T4 meshes with a pinion 9 secured to the output shaft 6
  • this output shaft 6 is arranged coaxially inside the support beam 4 thus offering a reduced bulk to the device according to the invention. Furthermore, this support beam 4 supports each planetary gear tram, as visible in Figure 1, thus ensuring by adequate sizing thereof a high resistance
  • the drive ring 8 meshes with the first planetary gear tram T1 consisting of three satellites 10 angularly spaced at regular intervals, as visible in FIG. 3, so as to balance the forces on the envelope 3
  • the satellite 10 of the first planetary gear T1 is carried by a first shaft 11 parallel to the output shaft 6 and meshes on the one hand with the drive ring 8 and on the other hand with a pinion 12 secured to a second shaft 13 also parallel to the output shaft 6
  • This second shaft 13 carries, moreover, the driving pinion 14 of the second planetary gear tram T2 which meshes with a driven pinion 15 carried by a third support shaft 16, as visible in FIG. 4
  • the third shaft 16 carries the driving pinion 17 of the third planetary tram T3 (FIG. 5) which meshes with a driven pinion 18 carried by a fourth shaft 19 on which is also arranged the driving pinion 20 of the fourth planetary tram T4 which meshes with the single pinion 9 integral with the output shaft 6 ( Figure 6)
  • the drive ring can mesh with a satellite of a first planetary gear train mounted on a first shaft also carrying the pinion leading from the second planetary gear train eliminating with respect to the first embodiment an intermediate pinion
  • this envelope consists, for example, of an annular part and of two flanges disposed at each end each resting on the outer ring of said tapered bearing, thus offering a simple and inexpensive embodiment of the envelope.
  • This simple architecture also makes it possible to support heavy loads on the envelope.
  • the device of the present invention is relatively simple to produce and makes it possible to dispense with the blade support of the input shaft of the multiplier and its bearing for supporting the structures. of traditional eohennes This device makes it possible to considerably reduce the head load for high power eohennes It can also be applied to lower power wind systems

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Retarders (AREA)
  • Wind Motors (AREA)

Abstract

The invention concerns a high performance torque transmitting device, in particular for a wind machine, comprising a casing (3) mounted freely rotating about a support beam (4) whereon are fixed the blades (1) of the wind machine and wherein is housed a mechanism for multiplying (5) the nominal speed of said blades (1) which co-operate both with the casing (3) and the output shaft (6) designed to be coupled in particular to a generator. The invention is characterised in that the casing (3) is mounted rotating freely about the support beam (4) via a conical ball bearing (C) arranged at each end of the casing (3), said casing (3) resting on the outer ring of the ball bearings (C).

Description

Dispositif de transmission de couple à haut rendement, notamment pour éo enne High efficiency torque transmission device, especially for wind

La présente invention concerne un dispositif de transmission de couple à haut rendement, notamment pour une éohenneThe present invention relates to a high efficiency torque transmission device, in particular for an eohenne

D'une manière générale, une éohenne est constituée d'une tour portant à son sommet une tête mobile en fonction de l'orientation du vent sur laquelle sont montées des pales, libres en rotation sous l'influence du vent, destinées à fournir un couple, c'est-à-dire une certaine force d'entraînement en rotation à un arbre de transmission relié à un multiplicateur afin d'augmenter ce couple avant d'être transmis à un générateurIn general, an eohenne consists of a tower carrying at its top a movable head according to the orientation of the wind on which are mounted blades, free to rotate under the influence of the wind, intended to provide a torque, i.e. a certain driving force in rotation to a transmission shaft connected to a multiplier in order to increase this torque before being transmitted to a generator

Dans ce type de structure d'éolienne, il s'avère que l'arbre de transmission, soutenu par un palier, supporte un couple important, c'est-à-dire plusieurs centaines de kilos newton de sorte que celui-ci doit offrir une forte résistance, entraînant par conséquent un diamètre de l'arbre très important de l'ordre de 450 mm et un poids excessif voisin des 12 TonnesIn this type of wind turbine structure, it turns out that the drive shaft, supported by a bearing, supports a significant torque, that is to say several hundred kilos newton so that it must offer high resistance, consequently resulting in a very large shaft diameter of the order of 450 mm and an excessive weight close to 12 Tons

Par ailleurs de telles caractéristiques nécessaires pour transmettre un couple important, imposent une charge en tête importante et par voie de conséquence une architecture de dimensionnement de la tour excessiveFurthermore, such characteristics necessary for transmitting a significant torque, impose a significant head load and consequently an excessive tower dimensioning architecture.

Le but de l'invention est de proposer un dispositif de transmission de couple à haut rendement pour une éohenne qui permet de résoudre tout ou partie des inconvénients précités, notamment un dispositif capable de transmettre un couple élevé sans induire des contraintes excessives dans les différentes liaisons d'entraînementThe object of the invention is to propose a high-efficiency torque transmission device for an eohenne which makes it possible to solve all or part of the aforementioned drawbacks, in particular a device capable of transmitting high torque without inducing excessive stresses in the various links. drive

A cet effet, la présente invention a pour objet un dispositif de transmission de couple à haut rendement, notamment pour une éohenne, comprenant une enveloppe montée libre en rotation autour d'une poutre de soutien sur laquelle sont fixées les pales de l'éolienne et à l'intérieur de laquelle est loge un mécanisme de multiplication de la vitesse nominale desdites pales qui coopère d'une part avec l'enveloppe et d'autre part avec l'arbre de sortie destiné a être accouplé notamment à un générateur, caractérisé en ce que l'enveloppe est montée libre en rotation autour de la poutre de soutien par l'intermédiaire d'un roulement conique disposé à chaque extrémité de l'enveloppe, ladite enveloppe reposant sur la bague externe des roulements Un autre objet de l'invention concerne un dispositif de transmission de couple à haut rendement, notamment pour une éohenne, comprenant une enveloppe montée libre en rotation autour d'une poutre de soutien sur laquelle sont fixées les pales de l'éolienne et à l'intérieur de laquelle est logé un mécanisme de multiplication de la vitesse nominale desdites pales qui coopère d'une part avec l'enveloppe et d'autre part avec l'arbre de sortie destiné à être accouplé notamment à un générateur, caractérisé en ce que l'enveloppe est pourvue à sa périphérie interne d'une couronne d'entraînement qui engrène avec le mécanisme de multiplication , ce mécanisme étant constitué d'au moins un train d'engrenage planétaire comprenant trois satellites espacés angulairement de manière régulière et portés chacun par un arbre parallèle à l'arbre de sortie et sur lequel est monté un pignon menant qui engrène avec un pignon solidaire de l'arbre de sortieTo this end, the subject of the present invention is a high-efficiency torque transmission device, in particular for an eohenne, comprising an envelope mounted to rotate freely around a support beam on which the blades of the wind turbine are fixed and inside which is housed a mechanism for multiplying the nominal speed of said blades which cooperates on the one hand with the casing and on the other hand with the output shaft intended to be coupled in particular to a generator, characterized in that the envelope is mounted to rotate freely around the support beam by means of a tapered bearing disposed at each end of the envelope, said envelope resting on the outer ring of the bearings Another object of the invention relates to a high-efficiency torque transmission device, in particular for an eohenne, comprising an envelope freely mounted in rotation around a support beam on which the blades of the wind turbine are fixed and to the inside which is housed a mechanism for multiplying the nominal speed of said blades which cooperates on the one hand with the casing and on the other hand with the output shaft intended to be coupled in particular to a generator, characterized in that the envelope is provided at its internal periphery with a drive ring which meshes with the multiplication mechanism, this mechanism consisting of at least one planetary gear train comprising three satellites angularly spaced at regular intervals and each carried by a shaft parallel to the output shaft and on which is mounted a driving pinion which meshes with a pinion integral with the output shaft

Suivant quelques dispositions intéressantes de l'invention associé à l'un des deux objetsAccording to some interesting provisions of the invention associated with one of the two objects

- l'enveloppe est pourvue a sa périphérie interne d'une couronne d'entraînement qui engrène avec le mécanisme de multiplication , ce mécanisme est constitué d'au moins un train d'engrenage planétaire comprenant trois satellites espacés angulairement de manière régulière et portés chacun par un arbre parallèle à l'arbre de sortie sur lequel est monté un pignon menant qui engrène avec un pignon solidaire dudit arbre de sortie ,- the envelope is provided at its internal periphery with a drive ring which meshes with the multiplication mechanism, this mechanism consists of at least one planetary gear train comprising three satellites spaced angularly in a regular manner and each carried by a shaft parallel to the output shaft on which is mounted a driving pinion which meshes with a pinion integral with said output shaft,

- l'enveloppe est montée libre en rotation autour de la poutre de soutien par l'intermédiaire d'un roulement conique disposé à chaque extrémité de l'enveloppe- the casing is mounted to rotate freely around the support beam by means of a tapered bearing disposed at each end of the casing

- le mécanisme de multiplication est, avantageusement, constitué d'une succession d'au moins trois trains d'engrenage planétaire, de préférence quatre ,the multiplication mechanism advantageously consists of a succession of at least three planetary gear trains, preferably four,

- chacun des arbres de support des trains d'engrenage planétaire est fixé à la poutre de soutien ,- each of the support shafts of the planetary gear trains is fixed to the support beam,

- la couronne d'entraînement est réalisée par un usinage interne de l'enveloppe ,- the drive ring is produced by internal machining of the casing,

- l'arbre de sortie est disposé coaxialement a l'intérieur de la poutre de soutien , Un autre objet de la présente invention concerne une éohenne caractérisée en ce qu'elle comporte un dispositif de transmission de couple conforme à l'une quelconque des caractéristiques mentionnées ci-dessus- the output shaft is arranged coaxially inside the support beam, Another object of the present invention relates to an eohenne characterized in that it comprises a torque transmission device conforming to any of the characteristics mentioned above

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, en se référant aux dessins annexés sur lesquelsThe characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, with reference to the accompanying drawings in which

- la figure 1 est une vue de côté de la tête d'une éohenne pourvue du dispositif selon l'invention,FIG. 1 is a side view of the head of an eohenne provided with the device according to the invention,

- la figure 2 est une vue en coupe partielle du dispositif selon l'invention,FIG. 2 is a partial section view of the device according to the invention,

- la figure 3 est une vue en coupe suivant la ligne lll-lll de la figure 2,FIG. 3 is a sectional view along the line III-III of FIG. 2,

- la figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 2,FIG. 4 is a sectional view along line IV-IV of FIG. 2,

- la figure 5 est une vue en coupe suivant la ligne V-V de la figure 2, etFIG. 5 is a sectional view along the line V-V of FIG. 2, and

- la figure 6 est une vue en coupe suivant la ligne VI-VI de la figure 2- Figure 6 is a sectional view along line VI-VI of Figure 2

On a représenté à la figure 1 l'extrémité de la tête mobile d'une éohenne, constituée en partie par des pales 1 fixées directement sur le dispositif de transmission de couple 2, selon la présente inventionThere is shown in Figure 1 the end of the movable head of an eohenne, formed in part by blades 1 fixed directly on the torque transmission device 2, according to the present invention

Ce dispositif 2 comprend une enveloppe 3 montée libre en rotation autour d'une poutre de soutien 4 par l'intermédiaire, par exemple, d'un roulement conique C disposé à chaque extrémité de cette dernière, et un mécanisme de multiplication 5 de la vitesse nominale des pales 1 qui est relié à un arbre de sortie 6 et logé à l'intérieur de ladite enveloppe Cet arbre de sortie 6, également désigné arbre de transmission, est classiquement accouplé à un générateur, non représenté, disposé dans la tête mobile de l'éolienneThis device 2 comprises a casing 3 mounted to rotate freely around a support beam 4 by means, for example, of a tapered bearing C disposed at each end of the latter, and a speed multiplication mechanism 5 nominal of the blades 1 which is connected to an output shaft 6 and housed inside said casing This output shaft 6, also designated drive shaft, is conventionally coupled to a generator, not shown, disposed in the movable head of wind

Selon la présente invention, l'enveloppe 3 est pourvue à sa périphérie extérieure de moyen de fixation 7 des pales 1 et à sa périphérie interne d'une couronne d'entraînement 8, comme visible à la figure 2, qui est accouplée avec le mécanisme de multiplication 5 formant ainsi la couronne d'entrée du couple à transmettre au générateur , ce couple est formé par la récupération du mouvement rotatif induit des pales de l'éolienneAccording to the present invention, the casing 3 is provided at its outer periphery with fastening means 7 for the blades 1 and at its internal periphery with a drive ring 8, as visible in FIG. 2, which is coupled with the mechanism multiplication 5 thus forming the input ring of the torque to be transmitted to the generator, this torque is formed by the recovery of the induced rotary movement of the blades of the wind turbine

On notera que la couronne d'entraînement est avantageusement réalisée par un usinage interne de l'enveloppe 3It will be noted that the drive ring is advantageously made by internal machining of the casing 3

Selon un mode de réalisation préférentiel, le mécanisme de multiplication 5 est constitué d'une succession de quatre trains d'engrenage planétaire T1 , 12,According to a preferred embodiment, the multiplication mechanism 5 consists of a succession of four planetary gear trains T1, 12,

T3 et T4, décrits plus en détail dans la suite de la description, dont le premier tram T1 , comme visible à la figure 3, engrène avec la couronne d'entraînement 8 et le dernier train T4 engrène avec un pignon 9 solidaire de l'arbre de sortie 6T3 and T4, described in more detail in the following description, the first tram T1, as visible in FIG. 3, meshes with the drive ring 8 and the last train T4 meshes with a pinion 9 secured to the output shaft 6

De manière avantageuse, cet arbre de sortie 6 est disposé coaxialement à l'intérieur de la poutre de soutien 4 offrant ainsi un encombrement réduit au dispositif selon l'invention Par ailleurs, cette poutre de soutien 4 supporte chaque tram d'engrenage planétaire, comme visible sur la figure 1 , assurant ainsi par un dimensionnement adéquat de celle-ci une forte résistanceAdvantageously, this output shaft 6 is arranged coaxially inside the support beam 4 thus offering a reduced bulk to the device according to the invention. Furthermore, this support beam 4 supports each planetary gear tram, as visible in Figure 1, thus ensuring by adequate sizing thereof a high resistance

Comme mentionné ci-dessus, la couronne d'entraînement 8 engrène avec le premier tram d'engrenage planétaire T1 constitué de trois satellites 10 espacés angulairement de manière régulière, comme visible à la figure 3, de manière à équilibrer les efforts sur l'enveloppe 3As mentioned above, the drive ring 8 meshes with the first planetary gear tram T1 consisting of three satellites 10 angularly spaced at regular intervals, as visible in FIG. 3, so as to balance the forces on the envelope 3

Afin de faciliter la description de chaque tram d'engrenage planétaire, nous ne décrirons dans ce qui suit que les différents liaisons ou accouplements existant à partir d'un satellite, ceux-ci étant similaires pour les autres satellites d'un même tramIn order to facilitate the description of each planetary gear tram, we will describe in the following only the different links or couplings existing from a satellite, these being similar for the other satellites of the same tram

Ainsi, le satellite 10 du premier train planétaire T1 est porté par un premier arbre 1 1 parallèle à l'arbre de sortie 6 et engrène d'une part avec la couronne d'entraînement 8 et d'autre part avec un pignon 12 solidaire d'un deuxième arbre 13 également parallèle à l'arbre de sortie 6Thus, the satellite 10 of the first planetary gear T1 is carried by a first shaft 11 parallel to the output shaft 6 and meshes on the one hand with the drive ring 8 and on the other hand with a pinion 12 secured to a second shaft 13 also parallel to the output shaft 6

Ce deuxième arbre 13 porte, en outre, le pignon menant 14 du deuxième tram d'engrenage planétaire T2 qui engrène avec un pignon mené 15 porté par un troisième arbre support 16, comme visible à la figure 4 De manière similaire au deuxième arbre 13, le troisième arbre 16 porte le pignon menant 17 du troisième tram planétaire T3 (figure 5) qui engrène avec un pignon mené 18 porté par un quatrième arbre 19 sur lequel est également disposé le pignon menant 20 du quatrième tram planétaire T4 qui engrène avec l'unique pignon 9 solidaire de l'arbre de sortie 6 (figure 6)This second shaft 13 carries, moreover, the driving pinion 14 of the second planetary gear tram T2 which meshes with a driven pinion 15 carried by a third support shaft 16, as visible in FIG. 4 Similarly to the second shaft 13, the third shaft 16 carries the driving pinion 17 of the third planetary tram T3 (FIG. 5) which meshes with a driven pinion 18 carried by a fourth shaft 19 on which is also arranged the driving pinion 20 of the fourth planetary tram T4 which meshes with the single pinion 9 integral with the output shaft 6 (Figure 6)

Selon le rapport de multiplication désiré, c'est-à-dire la vitesse maximale pouvant être délivrée par l'arbre de sortie, le nombre de dents de chaque pignon ainsi que le nombre de trains d'engrenage planétaires sont déterminés par le calcul des rapports d'engrenage Ainsi, selon une variante, la couronne d'entraînement peut engrener avec un satellite d'un premier train d'engrenage planétaire monté sur un premier arbre portant également le pignon menant du second train d'engrenage planétaire supprimant par rapport au premier mode de réalisation un pignon intermédiaireDepending on the desired multiplication ratio, i.e. the maximum speed that can be delivered by the output shaft, the number of teeth of each pinion as well as the number of planetary gear trains are determined by the calculation of the gear ratios Thus, according to a variant, the drive ring can mesh with a satellite of a first planetary gear train mounted on a first shaft also carrying the pinion leading from the second planetary gear train eliminating with respect to the first embodiment an intermediate pinion

On notera que la couronne d'entraînement, de par son diamètre important permet de réduire considérablement le couple transmis par les pales Par ailleurs, cette enveloppe est constituée, par exemple, d'une partie annulaire et de deux flasques disposes à chaque extrémité reposant chacun sur la bague externe dudit roulement conique offrant ainsi une réalisation simple et peu coûteuse de l'enveloppe Cette architecture simple permet en outre de supporter les fortes charges sur l'enveloppeIt will be noted that the drive ring, by virtue of its large diameter makes it possible to considerably reduce the torque transmitted by the blades. Furthermore, this envelope consists, for example, of an annular part and of two flanges disposed at each end each resting on the outer ring of said tapered bearing, thus offering a simple and inexpensive embodiment of the envelope. This simple architecture also makes it possible to support heavy loads on the envelope.

Le fonctionnement du dispositif ressort déjà de la description qui en a été faite ci-dessus et va être maintenant expliquéThe operation of the device is already apparent from the description which has been made above and will now be explained.

Le mouvement de rotation induit par les pales est directement transmis a l'enveloppe et au mécanisme de multiplication de par la structure particulière de l'enveloppe selon l'invention La vitesse de rotation de cette enveloppe est augmentée progressivement par la succession des trains planétaires jusqu'à l'arbre de sortie qui est relié, par exemple, au générateur On a représenté sur la figure 2, par des flèches en gras la transmission du couple au travers du mécanisme de multiplicationThe rotational movement induced by the blades is directly transmitted to the envelope and to the multiplication mechanism by the particular structure of the envelope according to the invention. The speed of rotation of this envelope is gradually increased by the succession of planetary trains up to '' to the output shaft which is connected, for example, to the generator We have shown in Figure 2, by arrows in bold the torque transmission through the multiplication mechanism

On comprend a la lecture de la description ci-dessus que le dispositif de la présente invention est relativement simple à réaliser et permet de s'affranchir du support de pales de l'arbre d'entrée du multiplicateur et de son palier de soutien des structures d'éohennes traditionnelles Ce dispositif permet ainsi de réduire considérablement la charge en tête pour des éohennes de forte puissance Elle peut également être appliquée aux systèmes éoliens de plus faible puissanceIt will be understood from reading the description above that the device of the present invention is relatively simple to produce and makes it possible to dispense with the blade support of the input shaft of the multiplier and its bearing for supporting the structures. of traditional eohennes This device makes it possible to considerably reduce the head load for high power eohennes It can also be applied to lower power wind systems

Bien que l'invention ait été décrite en liaison avec deux modes de réalisation particuliers elle comprend tous les équivalents techniques des moyens décrits Although the invention has been described in conjunction with two particular embodiments, it includes all the technical equivalents of the means described

Claims

REVENDICATIONS- claims- 1 Dispositif de transmission de couple à haut rendement, notamment pour une éohenne, comprenant une enveloppe (3) montée libre en rotation autour d'une poutre de soutien (4) sur laquelle sont fixées les pales (1 ) de l'éolienne et à l'intérieur de laquelle est logé un mécanisme de multiplication (5) de la vitesse nominale desdites pales (1) qui coopère d'une part avec l'enveloppe (3) et d'autre part avec l'arbre de sortie (6) destiné à être accouplé notamment à un générateur, caractérisé en ce que l'enveloppe (3) est montée libre en rotation autour de la poutre de soutien (4) par l'intermédiaire d'un roulement conique (C) disposé à chaque extrémité de l'enveloppe (3), ladite enveloppe (3) reposant sur la bague externe des roulements (C)1 High-performance torque transmission device, in particular for an eohenne, comprising a casing (3) freely mounted for rotation around a support beam (4) on which the blades (1) of the wind turbine are fixed and inside which is housed a multiplication mechanism (5) of the nominal speed of said blades (1) which cooperates on the one hand with the casing (3) and on the other hand with the output shaft (6) intended to be coupled in particular to a generator, characterized in that the casing (3) is mounted to rotate freely around the support beam (4) by means of a tapered bearing (C) disposed at each end of the casing (3), said casing (3) resting on the outer ring of the bearings (C) 2 Dispositif de transmission de couple à haut rendement, notamment pour une éohenne, comprenant une enveloppe (3) montée libre en rotation autour d'une poutre de soutien (4) sur laquelle sont fixées les pales (1 ) de l'éolienne et à l'intérieur de laquelle est logé un mécanisme de multiplication (5) de la vitesse nominale desdites pales (1 ) qui coopère d'une part avec l'enveloppe (3) et d'autre part avec l'arbre de sortie (6) destiné à être accouplé notamment à un générateur, caractérisé en ce que l'enveloppe (3) est pourvue à sa périphérie interne d'une couronne d'entraînement (8) qui engrène avec le mécanisme de multiplication (5) , ce mécanisme (5) étant constitué d'au moins un tram d'engrenage planétaire comprenant trois satellites espacés angulairement de manière régulière et portés chacun par un arbre parallèle à l'arbre de sortie (6) et sur lequel est monté un pignon menant qui engrène avec un pignon solidaire de l'arbre de sortie (6)2 High-performance torque transmission device, in particular for an eohenne, comprising a casing (3) mounted to rotate freely around a support beam (4) on which the blades (1) of the wind turbine are fixed and inside which is housed a multiplication mechanism (5) of the nominal speed of said blades (1) which cooperates on the one hand with the casing (3) and on the other hand with the output shaft (6) intended to be coupled in particular to a generator, characterized in that the casing (3) is provided at its internal periphery with a drive ring (8) which meshes with the multiplication mechanism (5), this mechanism (5 ) consisting of at least one planetary gear tram comprising three satellites angularly spaced at regular intervals and each carried by a shaft parallel to the output shaft (6) and on which is mounted a driving pinion which meshes with a pinion integral with the output shaft (6) 3 Dispositif selon la revendication 1 , caractérisé en ce que l'enveloppe (3) est pourvue à sa périphérie interne d'une couronne d'entraînement (8) qui engrène avec le mécanisme de multiplication (5) , ce mécanisme (5) étant constitué d'au moins un train d'engrenage planétaire comprenant trois satellites espacés angulairement de manière régulière et portés chacun par un arbre parallèle à l'arbre de sortie (6) et sur lequel est monté un pignon menant qui engrène avec un pignon solidaire de l'arbre de sortie (6)3 Device according to claim 1, characterized in that the envelope (3) is provided at its internal periphery with a drive ring (8) which meshes with the multiplication mechanism (5), this mechanism (5) being consisting of at least one planetary gear train comprising three satellites angularly spaced at regular intervals and each carried by a shaft parallel to the output shaft (6) and on which is mounted a driving pinion which meshes with a pinion integral with the output shaft (6) 4 Dispositif selon la revendication 2, caractérisé en ce que l'enveloppe (3) est montée libre en rotation autour de la poutre de soutien (4) par l'intermédiaire d'un roulement conique (C) disposé à chaque extrémité de l'enveloppe (3).4 Device according to claim 2, characterized in that the casing (3) is mounted to rotate freely around the support beam (4) by means of a tapered bearing (C) disposed at each end of the envelope (3). 5. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le mécanisme de multiplication (5) est constitué d'une succession d'au moins trois trains d'engrenage planétaires (T1 , T2, T3).5. Device according to claim 2 or 3, characterized in that the multiplication mechanism (5) consists of a succession of at least three planetary gear trains (T1, T2, T3). 6. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le mécanisme de multiplication (5) est constitué d'une succession de quatre trains d'engrenage planétaires (T1 , T2, T3, 14).6. Device according to claim 2 or 3, characterized in that the multiplication mechanism (5) consists of a succession of four planetary gear trains (T1, T2, T3, 14). 7. Dispositif selon l'une quelconque des revendications 2 à 6, caractérisé en ce que chacun des arbres de support (11 , 13, 16, 19) des trains d'engrenage planétaires (T1 , 12, 13, 14) est fixé à la poutre de soutien (4).7. Device according to any one of claims 2 to 6, characterized in that each of the support shafts (11, 13, 16, 19) of the planetary gear trains (T1, 12, 13, 14) is fixed to the support beam (4). 8. Dispositif selon l'une quelconque des revendications 2 à 7, caractérisé en ce que la couronne d'entraînement (8) est réalisée par un usinage interne de l'enveloppe (3)8. Device according to any one of claims 2 to 7, characterized in that the drive ring (8) is produced by internal machining of the envelope (3) 9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'arbre de sortie (6) est disposé coaxialement à l'intérieur de la poutre de soutien (4).9. Device according to any one of the preceding claims, characterized in that the output shaft (6) is arranged coaxially inside the support beam (4). 10. Eohenne, caractérisée en ce qu'elle comporte un dispositif de transmission de couple conforme à l'une quelconque des revendications précédentes. 10. Eohenne, characterized in that it comprises a torque transmission device according to any one of the preceding claims.
PCT/FR2000/003657 1999-12-24 2000-12-22 High performance torque transmitting device in particular for wind machine Ceased WO2001048395A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00993637A EP1254325A1 (en) 1999-12-24 2000-12-22 High performance torque transmitting device in particular for wind machine
AU28575/01A AU2857501A (en) 1999-12-24 2000-12-22 High performance torque transmitting device in particular for wind machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9916443A FR2804726A1 (en) 1999-12-24 1999-12-24 Rotating case gearbox, for wind turbine, has cylindrical casing supported by conical bearings on a stationary hollow mounting beam housing the output shaft
FR99/16443 1999-12-24
FR0007771A FR2804727B1 (en) 1999-12-24 2000-06-19 HIGH EFFICIENCY TORQUE TRANSMISSION DEVICE, ESPECIALLY FOR A WIND TURBINE
FR00/07771 2000-06-19

Publications (1)

Publication Number Publication Date
WO2001048395A1 true WO2001048395A1 (en) 2001-07-05

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Application Number Title Priority Date Filing Date
PCT/FR2000/003657 Ceased WO2001048395A1 (en) 1999-12-24 2000-12-22 High performance torque transmitting device in particular for wind machine

Country Status (4)

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EP (1) EP1254325A1 (en)
AU (1) AU2857501A (en)
FR (1) FR2804727B1 (en)
WO (1) WO2001048395A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007135156A1 (en) * 2006-05-22 2007-11-29 Vestas Wind Systems A/S A gear system for a wind turbine
ES2320082A1 (en) * 2007-11-16 2009-05-18 GAMESA INNOVATION & TECHNOLOGY, SL. Power transmission with high gear ratio, intended for a wind turbine
WO2009141140A3 (en) * 2008-05-20 2011-06-30 Urs Giger Wind power plant, transmission for a wind power plant and flexpin
EP2372148A1 (en) * 2010-03-31 2011-10-05 Winergy AG Drive device for a wind power system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8033951B2 (en) 2010-04-30 2011-10-11 General Electric Company Gearbox for a wind turbine
DE102014005517A1 (en) * 2014-04-15 2015-10-15 Renk Aktiengesellschaft Power split transmission

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308836A1 (en) * 1975-04-24 1976-11-19 Westdeutsche Getriebewerk Gmbh EPICYLOIDAL GEAR WITH CLOSED CASING
WO1983001657A1 (en) * 1981-10-30 1983-05-11 Henrik Stiesdal Wind power engine
DE3529404A1 (en) * 1985-08-16 1987-02-26 Rudolf Eckert Rotor transmission for wind power stations
DE3903517A1 (en) * 1988-03-31 1989-10-19 Muchna Maria Spur gear mechanism series falling under the category of planetary gear mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308836A1 (en) * 1975-04-24 1976-11-19 Westdeutsche Getriebewerk Gmbh EPICYLOIDAL GEAR WITH CLOSED CASING
WO1983001657A1 (en) * 1981-10-30 1983-05-11 Henrik Stiesdal Wind power engine
DE3529404A1 (en) * 1985-08-16 1987-02-26 Rudolf Eckert Rotor transmission for wind power stations
DE3903517A1 (en) * 1988-03-31 1989-10-19 Muchna Maria Spur gear mechanism series falling under the category of planetary gear mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007135156A1 (en) * 2006-05-22 2007-11-29 Vestas Wind Systems A/S A gear system for a wind turbine
US8529397B2 (en) 2006-05-22 2013-09-10 Vestas Wind Systems A/S Gear system for a wind turbine
ES2320082A1 (en) * 2007-11-16 2009-05-18 GAMESA INNOVATION & TECHNOLOGY, SL. Power transmission with high gear ratio, intended for a wind turbine
WO2009063119A1 (en) * 2007-11-16 2009-05-22 Gamesa Innovation & Technology, S.L. Power transmission with high gear ratio, intended for a wind turbine
ES2320082B1 (en) * 2007-11-16 2010-03-01 GAMESA INNOVATION & TECHNOLOGY, SL. TRANSMISSION OF HIGH NUMERICAL RELATIONSHIP FOR A WIND FARMER.
WO2009141140A3 (en) * 2008-05-20 2011-06-30 Urs Giger Wind power plant, transmission for a wind power plant and flexpin
EP2372148A1 (en) * 2010-03-31 2011-10-05 Winergy AG Drive device for a wind power system

Also Published As

Publication number Publication date
AU2857501A (en) 2001-07-09
EP1254325A1 (en) 2002-11-06
FR2804727B1 (en) 2002-09-20
FR2804727A1 (en) 2001-08-10

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