EP3061916A1 - Radscheibenanordnung eines Rotors und Verfahren zur Montage einer Radscheibenanordnung eines Rotors - Google Patents

Radscheibenanordnung eines Rotors und Verfahren zur Montage einer Radscheibenanordnung eines Rotors Download PDF

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Publication number
EP3061916A1
EP3061916A1 EP15156321.0A EP15156321A EP3061916A1 EP 3061916 A1 EP3061916 A1 EP 3061916A1 EP 15156321 A EP15156321 A EP 15156321A EP 3061916 A1 EP3061916 A1 EP 3061916A1
Authority
EP
European Patent Office
Prior art keywords
wheel disc
annular groove
sealing plates
projection
disc arrangement
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Withdrawn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
EP15156321.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Harald Hoell
Kevin KAMPKA
Karsten Kolk
Marc Lange
Peter Schröder
Vyacheslav Veitsman
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP15156321.0A priority Critical patent/EP3061916A1/de
Priority to JP2017545675A priority patent/JP6463848B2/ja
Priority to EP16700547.9A priority patent/EP3227532A1/de
Priority to PCT/EP2016/050343 priority patent/WO2016134864A1/de
Priority to CN201680011811.9A priority patent/CN107407155A/zh
Priority to US15/546,464 priority patent/US20180023401A1/en
Publication of EP3061916A1 publication Critical patent/EP3061916A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/326—Locking of axial insertion type blades by other means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/70—Disassembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts

Definitions

  • the present invention relates to a wheel disc assembly having a wheel disc, a plurality of blade means, which are fixed along the outer periphery of the wheel disc and a plurality of sealing plates, which are held in two radially spaced annular grooves, wherein the first annular groove is provided in the wheel disc and axially outwardly through a continuous Ring projection is limited, and wherein the second annular groove is defined by a plurality of adjacently arranged annular groove segments, which are respectively provided in the individual blade means.
  • Wheel disc assemblies of the type mentioned are known in the prior art in a variety of configurations.
  • the blade devices are inserted into axial grooves of the wheel disc, wherein the sealing plates are successively inserted between the two annular grooves.
  • all sealing plates must already be mounted and moved so far over their overlap areas in the annular grooves that the blade means can be installed in the associated grooves of the wheel disc. Subsequently, the sealing plates are pushed in the circumferential direction back to its intended position and secured there against displacement in the circumferential direction suitable.
  • the present invention provides a Radularnan extract of the aforementioned type, which is characterized in that the first annular groove has at least one a Dichtblechmontage Colour defining recess whose length in the circumferential direction is greater than the width of the sealing plates on the inner diameter. Thanks to such a recess, the sealing plates can be threaded in a simple manner in the associated annular grooves, even if all the blade devices are already mounted on the wheel disc, whereby the assembly is made very flexible. More specifically, the inner peripheral edge of a sealing plate can be inserted obliquely from above into the recess and then the sealing plate can be tilted in the direction of the wheel disc. Then, the sealing plate can be moved upwards, then inserted with its outer peripheral edge in the second annular groove and then moved in the circumferential direction in both annular grooves. Just as easily, the individual sealing plates can be removed again in the reverse order.
  • the recess in the axial direction has a greater width than the first annular groove. In this way, enough space is provided for easy insertion and removal of the sealing plates during assembly or disassembly of the sealing sheets available.
  • a slope also simplifies the insertion and removal of the sealing plates in the region of the recess.
  • the annular projection on the side facing the first annular groove in the region of the depression has an undercut region.
  • Such an undercut region may be useful for the attachment of a filler, as will be explained in more detail below.
  • two recesses are provided, which are formed diametrically opposite in the wheel disc. Thanks to a second recess imbalances can be avoided during the intended use of the Radepticnan angel. Furthermore, the sealing plates can be assembled and disassembled faster.
  • the first annular groove is undercut and has, viewed in cross section, at least one axially projecting retaining projection which is provided with a contact surface, wherein the sealing plates in the region of the inner diameter viewed in cross section in each case at least one corresponding to the at least one retaining projection trained, axially projecting support projection, which is provided with a support surface, wherein the contact surface of the at least one retaining projection, the support surface of the at least one support projection and the height of the sealing plates are formed such that the wings of the sealing plates during normal operation of the Radusionnan Aunt under Support action of a centrifugal force against the contact surface of the at least one retaining projection. Thanks to this configuration, the weight of the sealing sheets is absorbed by the wheel disc under the action of centrifugal force, whereby the blade means are relieved.
  • At least one filling piece is provided which fills the depression and / or the widening and / or the undercut region and / or the slope.
  • the filler has a radially outwardly facing contact surface against which at least one sealing plate rests. Accordingly, the at least one sealing plate can be supported on the filling piece. At the same time, the at least one sealing plate secures the filler piece on the wheel disc.
  • all sealing plates are formed identically, whereby the production and also the storage of the sealing plates is simplified.
  • the sealing plates each have a circumferential displacement securing, which holds the corresponding sealing plate during the intended use of the Radularnan extract in the intended position, ie prevents a shift in the circumferential direction.
  • the sealing plates have a bore and the wheel disc associated openings, wherein extending through the holes connecting elements engage in the associated openings and are secured to the sealing plates. Thanks to the definition of the connecting elements on the sealing plates unnecessary weakening of the wheel by notch effect or the like is prevented.
  • the opening is formed in the form of a radially extending elongated hole. Accordingly, the sealing plates can move radially outward during the intended use of the Radularnan extract under the action of a centrifugal force.
  • a plurality of the edges and corners of the first annular groove and / or the supporting projections and / or the filling piece are provided with radii.
  • the present invention provides a method for mounting a wheel disc assembly according to the invention, in which in a first step, all blade devices are attached to the wheel disc, and in a further step, the sealing plates are mounted.
  • FIGS. 1 to 7 show a wheel disc assembly 1 according to a first embodiment of the present invention.
  • the wheel disc assembly 1 comprises a wheel disc 2, a plurality of blade means 3 mounted along the outer periphery of the wheel disc 2 in associated axially extending blade root receiving grooves 4, and a plurality of sealing sheets 5 disposed between the wheel disc 2 and the blade assemblies 3 in two radially spaced annular grooves 6, 7 are held.
  • the first annular groove 6 is provided in the wheel disc 2 and is bounded axially outwardly by a continuous annular projection 8.
  • the second annular groove 7 is defined by a plurality of adjacently arranged annular groove segments which are respectively formed in the blade devices 3.
  • the provided in the wheel disc 2 first annular groove 6 is formed undercut and, viewed in cross section has an axially projecting retaining projection 9, which is provided with a contact surface 10.
  • the sealing plates 5 in the region of the inner diameter in cross-section considered a corresponding to the retaining projection 9 formed, axially projecting support projection 11, which is provided with a support surface 12.
  • the first annular groove 6 has two diametrically opposed, identically formed and each defining a Dichtblechmethod Scheme depressions, of which only the recess 13 is shown in the figures.
  • the length of the recess 13 in the circumferential direction is greater than the width of the sealing plates on the inner diameter.
  • the width of the recess 13 is greater than the width of the first annular groove 6.
  • the annular projection 8 has on the first annular groove 6 facing side in the region of the recess 13, a bevel 14 which is formed such that the annular projection flattened toward the first annular groove 6 out.
  • the wheel disc assembly 1 further comprises a filler 15 which is formed such that it fills the area of the depression 13 widened in relation to the first annular groove 6 as well as the region of the slope 14. Further, the filler 15 has an axially facing away from the annular projection projection 16 which defines a contact surface, which serves to receive an inner peripheral edge of at least one sealing plate 5 and which are substantially flush with each other through the free ends of the interrupted by the recess 13 first annular groove 6 combines.
  • the sealing plates 5 are each formed identically and each comprise a bore 17, through which a substantially pin-shaped connecting element 18 extends in the intended mounted state of the Radularnan Aunt 1, which is attached to the associated sealing plate 5 and formed in a formed on the wheel disc opening 19th in the form of a radially extending slot engages.
  • each sealing plate 5 is inserted with its inner peripheral edge ahead of the top into the recess 13 and then tilted in the direction of the wheel disc 2. Then, the sealing plate 5 moves upwards, then inserted with its outer peripheral edge in the second annular groove 7 and then guided in the circumferential direction in the two annular grooves 6 and 7.
  • the individual sealing sheets 5 are first pushed one above the other in the circumferential direction in overlapping areas, so that even after the assembly of the last sealing plate 5 of the defined by recess 13 sealing plate mounting area remains free.
  • a significant advantage of the wheel disc assembly 1 described above is that the sealing plates 5 can be threaded easily thanks to the recesses 13 in the associated annular grooves 6, 7, even if all blade devices 3 are already mounted on the wheel disc 2, whereby the Installation is designed very flexible.
  • the sealing plates can just as easily be dismantled.
  • Another advantage is that forces caused by the centrifugal force caused by the weight of the sealing plates 5, thanks to provided on the wheel disc 2 holding projection 9 and the at Sealing plates 5 trained support projections 11 are received by the wheel disc, whereby the blade means 3 are greatly relieved during operation of the Radulationnan angel 1.
  • FIG. 9 shows an alternative embodiment of a recess 20 and a filler inserted into the recess 20 21.
  • the recess 20 differs from the recess 13 in that the annular projection on the first annular groove 6 facing side in the region of the recess 20 has an undercut portion 22.
  • the filling piece 21 differs from the filling piece 15 in that it also fills the undercut region 22, and in contrast to the filling piece 15, there is no projection 16 pointing away from the ring projection, on which the sealing sheets 5 rest. Otherwise, the in FIG. 9 illustrated embodiment of the previously described wheel disc assembly 1, which is why the same components or components are designated by the same reference numerals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP15156321.0A 2015-02-24 2015-02-24 Radscheibenanordnung eines Rotors und Verfahren zur Montage einer Radscheibenanordnung eines Rotors Withdrawn EP3061916A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP15156321.0A EP3061916A1 (de) 2015-02-24 2015-02-24 Radscheibenanordnung eines Rotors und Verfahren zur Montage einer Radscheibenanordnung eines Rotors
JP2017545675A JP6463848B2 (ja) 2015-02-24 2016-01-11 取り付けが簡単なシールプレートを有するホイールディスクアセンブリ
EP16700547.9A EP3227532A1 (de) 2015-02-24 2016-01-11 Radscheibenanordnung mit vereinfachter dichtblechmontage
PCT/EP2016/050343 WO2016134864A1 (de) 2015-02-24 2016-01-11 Radscheibenanordnung mit vereinfachter dichtblechmontage
CN201680011811.9A CN107407155A (zh) 2015-02-24 2016-01-11 具有简化的密封板安装的轮盘组件
US15/546,464 US20180023401A1 (en) 2015-02-24 2016-01-11 Wheel disk assembly having simplified sealing-plate mounting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15156321.0A EP3061916A1 (de) 2015-02-24 2015-02-24 Radscheibenanordnung eines Rotors und Verfahren zur Montage einer Radscheibenanordnung eines Rotors

Publications (1)

Publication Number Publication Date
EP3061916A1 true EP3061916A1 (de) 2016-08-31

Family

ID=52574066

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15156321.0A Withdrawn EP3061916A1 (de) 2015-02-24 2015-02-24 Radscheibenanordnung eines Rotors und Verfahren zur Montage einer Radscheibenanordnung eines Rotors
EP16700547.9A Withdrawn EP3227532A1 (de) 2015-02-24 2016-01-11 Radscheibenanordnung mit vereinfachter dichtblechmontage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16700547.9A Withdrawn EP3227532A1 (de) 2015-02-24 2016-01-11 Radscheibenanordnung mit vereinfachter dichtblechmontage

Country Status (5)

Country Link
US (1) US20180023401A1 (zh)
EP (2) EP3061916A1 (zh)
JP (1) JP6463848B2 (zh)
CN (1) CN107407155A (zh)
WO (1) WO2016134864A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3521561A1 (de) * 2018-02-02 2019-08-07 Siemens Aktiengesellschaft Rotor mit dichtelement und dichtring

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2975219A1 (de) * 2014-07-17 2016-01-20 Siemens Aktiengesellschaft Radscheibenanordnung
EP3564489A1 (de) 2018-05-03 2019-11-06 Siemens Aktiengesellschaft Rotor mit fliehkraft-optimierten kontaktflächen
CN112160798A (zh) * 2020-09-18 2021-01-01 中国航发四川燃气涡轮研究院 航空发动机涡轮挡板定位结构及其航空发动机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB905582A (en) * 1960-05-26 1962-09-12 Rolls Royce Improvements relating to the sealing of blades in a bladed rotor
US4349318A (en) * 1980-01-04 1982-09-14 Avco Corporation Boltless blade retainer for a turbine wheel
GB2274688A (en) * 1993-01-27 1994-08-03 Snecma Retaining and sealing arrangement for the blades of a rotor disc
EP1916389A1 (en) * 2006-10-26 2008-04-30 Siemens Aktiengesellschaft Turbine blade assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936222A (en) * 1974-03-28 1976-02-03 United Technologies Corporation Gas turbine construction
US5277548A (en) * 1991-12-31 1994-01-11 United Technologies Corporation Non-integral rotor blade platform
GB9517369D0 (en) * 1995-08-24 1995-10-25 Rolls Royce Plc Bladed rotor
JP2000186502A (ja) * 1998-12-24 2000-07-04 Hitachi Ltd ガスタービン
US7500832B2 (en) * 2006-07-06 2009-03-10 Siemens Energy, Inc. Turbine blade self locking seal plate system
EP1944472A1 (de) * 2007-01-09 2008-07-16 Siemens Aktiengesellschaft Axialer Rotorabschnitt für einen Rotor einer Turbine, Dichtelement für einen mit Laufschaufeln bestückten Rotor einer Turbine und Rotor für eine Turbine
US7566201B2 (en) * 2007-01-30 2009-07-28 Siemens Energy, Inc. Turbine seal plate locking system
US9181810B2 (en) * 2012-04-16 2015-11-10 General Electric Company System and method for covering a blade mounting region of turbine blades

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB905582A (en) * 1960-05-26 1962-09-12 Rolls Royce Improvements relating to the sealing of blades in a bladed rotor
US4349318A (en) * 1980-01-04 1982-09-14 Avco Corporation Boltless blade retainer for a turbine wheel
GB2274688A (en) * 1993-01-27 1994-08-03 Snecma Retaining and sealing arrangement for the blades of a rotor disc
EP1916389A1 (en) * 2006-10-26 2008-04-30 Siemens Aktiengesellschaft Turbine blade assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3521561A1 (de) * 2018-02-02 2019-08-07 Siemens Aktiengesellschaft Rotor mit dichtelement und dichtring
WO2019149474A1 (de) * 2018-02-02 2019-08-08 Siemens Aktiengesellschaft Rotor mit dichtelement und dichtring
US11319823B2 (en) 2018-02-02 2022-05-03 Siemens Energy Global GmbH & Co. KG Rotor with sealing element and ring seal

Also Published As

Publication number Publication date
WO2016134864A1 (de) 2016-09-01
US20180023401A1 (en) 2018-01-25
EP3227532A1 (de) 2017-10-11
JP2018508699A (ja) 2018-03-29
JP6463848B2 (ja) 2019-02-06
CN107407155A (zh) 2017-11-28

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