WO2019121008A1 - Liaison flexible entre l'arbre d'entrée et le porte-satellites - Google Patents

Liaison flexible entre l'arbre d'entrée et le porte-satellites Download PDF

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Publication number
WO2019121008A1
WO2019121008A1 PCT/EP2018/083619 EP2018083619W WO2019121008A1 WO 2019121008 A1 WO2019121008 A1 WO 2019121008A1 EP 2018083619 W EP2018083619 W EP 2018083619W WO 2019121008 A1 WO2019121008 A1 WO 2019121008A1
Authority
WO
WIPO (PCT)
Prior art keywords
input shaft
planet carrier
connecting element
region
ring gear
Prior art date
Application number
PCT/EP2018/083619
Other languages
German (de)
English (en)
Inventor
Warren Smook
Original Assignee
Zf Friedrichshafen Ag
Zf Wind Power Antwerpen N.V.
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 Friedrichshafen Ag, Zf Wind Power Antwerpen N.V. filed Critical Zf Friedrichshafen Ag
Publication of WO2019121008A1 publication Critical patent/WO2019121008A1/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
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • 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
    • F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels
    • F16H1/2827—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels by allowing limited movement of the planet carrier, e.g. relative to its shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a transmission according to the preamble of claim 1.
  • an input shaft is usually provided, which produces a rotationally fixed connection between a rotor driven by the wind and a rotatably mounted planet carrier.
  • the planet carrier is part of a planetary stage with a ring gear, a sun gear and several planetary gears.
  • the planet gears are rotatably mounted in the planet carrier and mesh with the ring gear and the sun gear.
  • the input shaft Since the input shaft carries the rotor and this has a high mass, the input shaft is mounted at several points in the engine nacelle. There is a non-rotatable connection between the engine nacelle and the ring gear.
  • the object of the invention is to eliminate the disadvantages inherent in the solutions known from the prior art.
  • the loads on the drive-side planetary stage of the transmission of a wind turbine should be reduced.
  • the transmission has at least one planetary stage.
  • a planetary stage is a gear stage with a ring gear, a planet carrier, multiple planetary gears and a sun wheel.
  • the planet gears are rotatably mounted in the planet carrier and mesh with the ring gear and / or the sun gear.
  • the ring gear of the planetary stage of the transmission according to the invention is designed to be fixed against rotation, for example in a nacelle of a wind turbine.
  • the ring gear may for example be provided with one or more torque arms. It is also possible to fix the ring gear rotatably by means of a flange connection.
  • the planet carrier For producing a rotationally fixed connection between the planet carrier and an input shaft, the planet carrier has a connecting element. A drive torque is transmitted from the input shaft to the planet carrier via the non-rotatable connection or via the connecting element. This implies that the planet carrier is rotatably mounted.
  • the connecting element is made resilient relative to tilting of the input shaft and of the planet carrier relative to one another. With tilts, rotations are rotated radially, i. denotes orthogonal to an axis of rotation of the input shaft and the planet carrier extending axis.
  • the tiltings are accompanied by alignment errors of the axis of rotation of the input shaft and the axis of rotation of the planet carrier.
  • An alignment error occurs when the two axes of rotation are at an angle other than 180 ° to each other.
  • the planetary stage is decoupled from the Verkipponne. The otherwise occurring due to the tilting loads are therefore reduced.
  • a connecting element that is yieldingly designed in relation to tilting is an element whose compliance with respect to the tilting is greater than the compliance of the input shaft and the planetary carrier.
  • the connecting element can oppose the tilting a resistance. However, this resistance is less than the resistance that oppose the input shaft and the planet carrier of tilting.
  • the compliance of the connecting element can be realized in various ways.
  • an outer diameter of at least one part of the connecting element is reduced compared to an outer diameter of a connecting piece for the input shaft, ie the connecting element tapers axially in the at least one part.
  • the outer diameter of the connection piece corresponds to an outer diameter of the input shaft.
  • the outer diameter of the at least one part of the connecting element is reduced relative to the outer diameter of the input shaft. Due to the reduced outer diameter increases in the at least one part of the compliance against tilting.
  • the connecting element can be configured in a preferred development as a disk-shaped element.
  • the disc-shaped element is preferably radially aligned. It is rotatably connected to the planetary carrier in a first area. In a second area, it is rotatably connected to the input shaft. The first region and the second region are arranged radially differently far outside.
  • a minimum distance between the first region and the axis of rotation of the input shaft or the planet carrier is greater than a maximum distance in the second region and the axis of rotation of the input shaft or the planet carrier, or a minimum distance between the second region and the axis of rotation of Input shaft or the planet carrier is greater than a maximum distance between the first region and the axis of rotation of the input shaft and the planet carrier.
  • the minimum distance of an area indicates the minimum of the distances of all points of this area.
  • a maximum distance of an area denotes the maximum of the distances of all points of this area.
  • the first region preferably comprises all partial regions in which the disk-shaped element is connected in a rotationally fixed manner to the planet carrier.
  • the second region preferably comprises all partial regions in which the disk-shaped element can be connected in a rotationally fixed manner to the input shaft. Due to the different radial arrangement of the first region and the second region, the disc-shaped element allows tilting of the first region and of the second region relative to one another and, as a result, tilting of the input shaft and of the planet carrier relative to one another.
  • the connecting element may be configured as a hard disk, also called a plate joint disk.
  • the transmission is preferably part of an arrangement with an input shaft.
  • the input shaft is at least twice, i. stored by at least two bearings and rotatably connected to the planet carrier. Due to the at least double bearing, five of the six degrees of freedom of movement of the input shaft are defined. Only a rotational degree of freedom along the axis of rotation of the input shaft remains. This leads to the above-described static over-determination, the consequences of which are alleviated by the flexibly designed connecting element.
  • the arrangement has a support structure.
  • the support structure may be the machine carrier of a nacelle of a wind power plant.
  • the input shaft is rotatably supported in the support structure.
  • the ring gear of the planetary stage is rotationally fixed in the support structure.
  • Fig. 1 a tapered connecting element
  • Fig. 2 a bearingless planet carrier
  • Fig. 3 a disc-shaped connecting element.
  • an input shaft 101 is shown with an input-side planetary stage 103 of a wind turbine.
  • the input shaft 101 is connected by means of a first gers 105 and a second bearing 107 rotatably mounted in a machine support 109 of a nacelle of the wind turbine.
  • the planetary stage 103 has a ring gear 111, a planet carrier 113, a plurality of planet gears 115 and a sun gear 117.
  • the ring gear 111 is rotationally fixed in the machine carrier 109 via a torque support 119.
  • planetary gears 113 are rotatably mounted in planet carrier 113.
  • the sun gear 117 is rotatable and held axially in position by the planet gears 115.
  • the planet carrier 113 forms a connecting element 125. This consists of an axially tapered portion 127 and a flange 129th In the
  • the tapered portion 127 is yieldable to tilting of the input shaft 101 and the planetary carrier 113. This prevents increased loads of the third bearing 121 and the fourth bearing 123 and bearing deviations of the planet carrier 113 relative to the ring gear 111 as a result of the tilting.
  • the input shaft 101 is direct, as is conventional in the art, i. Without the connecting element 125 connected to the planet carrier 113, the third bearing 121 and the fourth bearing 123 are required to support tilts of the input shaft 101. Otherwise, the tilting would be transmitted directly to the teeth of the ring gear 111 and the planetary gears 115.
  • the connecting element 125 makes it possible to dispense with the third bearing 121 and the fourth bearing 123, as shown in FIG.
  • the planet carrier 113 then hangs on the input shaft 101.
  • the bearing of the planet carrier 113 takes place exclusively with the first bearing 105 and the second bearing 107. Without the support by the third bearing 121 and the fourth bearing 123 also tilting of the input shaft 101 are transmitted directly here. However, the resulting forces in the toothings of the ring gear 111 and the planetary gears 115 are reduced due to the compliance of the connecting element 125.
  • FIG. 3 illustrates a disk-shaped member 301 that may be used in place of the tapered portion 127 to achieve the required reduction in flexural rigidity of the connector 125.
  • the disk-shaped element 301 extends outwardly from the flange 129 in the axial direction, where the disk-shaped element 301 merges into the planet carrier 113.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne une transmission comprenant au moins un étage satellite (103) ; une couronne de train planétaire (111) de l'étage satellite (103) est conçue pour être fixée solidairement en rotation ; un porte-satellite (113) de l'étage satellite (103) comporte un élément de liaison (125) destiné à établir une liaison solidaire en rotation entre le porte-satellite (113) et un arbre d'entrée (101). L'élément de liaison (125) est conçu pour être flexible par rapport au basculement de l'arbre d'entrée (101) et du porte-satellite (113) l'un par rapport à l'autre.
PCT/EP2018/083619 2017-12-20 2018-12-05 Liaison flexible entre l'arbre d'entrée et le porte-satellites WO2019121008A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017223356.7A DE102017223356A1 (de) 2017-12-20 2017-12-20 Flexible Verbindung zwischen Eingangswelle und Planetenträger
DE102017223356.7 2017-12-20

Publications (1)

Publication Number Publication Date
WO2019121008A1 true WO2019121008A1 (fr) 2019-06-27

Family

ID=64650401

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/083619 WO2019121008A1 (fr) 2017-12-20 2018-12-05 Liaison flexible entre l'arbre d'entrée et le porte-satellites

Country Status (2)

Country Link
DE (1) DE102017223356A1 (fr)
WO (1) WO2019121008A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021209151B3 (de) 2021-08-20 2023-02-02 Zf Friedrichshafen Ag Transportsicherung mit Montagelager
DE102021213855A1 (de) 2021-12-07 2023-06-07 Zf Friedrichshafen Ag Verkippbar gelagerter Planetenträger
DE102023201186A1 (de) 2023-02-14 2024-08-14 Zf Friedrichshafen Ag Antriebsanorndung für eine Windkraftanlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900939A1 (fr) * 2005-06-13 2008-03-19 Gamesa Innovation And Technology, S.L. Turbine eolienne
WO2012052022A1 (fr) * 2010-10-18 2012-04-26 Vestas Wind Systems A/S Système de transmission de puissance pour éolienne
GB2496256A (en) * 2011-11-07 2013-05-08 Romax Technology Ltd Planetary gearing system for a wind turbine
EP3181899A1 (fr) * 2015-12-18 2017-06-21 Gamesa Innovation & Technology, S.L. Éolienne avec une transmission modulaire
EP3232055A1 (fr) * 2016-04-13 2017-10-18 Senvion GmbH Éolienne dotée d'une transmission

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB497903A (en) * 1938-05-26 1938-12-30 Hardy Spicer & Co Ltd Flexible coupling discs
DE102012011268A1 (de) * 2012-06-08 2013-12-12 Centa-Antriebe Kirschey Gmbh Windenergieanlage
GB201222971D0 (en) * 2012-12-19 2013-01-30 Romax Technology Ltd Flexible driving shaft

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900939A1 (fr) * 2005-06-13 2008-03-19 Gamesa Innovation And Technology, S.L. Turbine eolienne
WO2012052022A1 (fr) * 2010-10-18 2012-04-26 Vestas Wind Systems A/S Système de transmission de puissance pour éolienne
GB2496256A (en) * 2011-11-07 2013-05-08 Romax Technology Ltd Planetary gearing system for a wind turbine
EP3181899A1 (fr) * 2015-12-18 2017-06-21 Gamesa Innovation & Technology, S.L. Éolienne avec une transmission modulaire
EP3232055A1 (fr) * 2016-04-13 2017-10-18 Senvion GmbH Éolienne dotée d'une transmission

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Publication number Publication date
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