EP2975219A1 - Assemblage de disque de roue - Google Patents

Assemblage de disque de roue Download PDF

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Publication number
EP2975219A1
EP2975219A1 EP14177468.7A EP14177468A EP2975219A1 EP 2975219 A1 EP2975219 A1 EP 2975219A1 EP 14177468 A EP14177468 A EP 14177468A EP 2975219 A1 EP2975219 A1 EP 2975219A1
Authority
EP
European Patent Office
Prior art keywords
wheel disc
sealing plates
projection
support
annular groove
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Withdrawn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
EP14177468.7A
Other languages
German (de)
English (en)
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to EP14177468.7A priority Critical patent/EP2975219A1/fr
Priority to JP2017502632A priority patent/JP6463829B2/ja
Priority to EP15738029.6A priority patent/EP3129600B1/fr
Priority to CN201580038898.4A priority patent/CN106536863B/zh
Priority to US15/324,857 priority patent/US10309234B2/en
Priority to PCT/EP2015/065664 priority patent/WO2016008791A1/fr
Publication of EP2975219A1 publication Critical patent/EP2975219A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F05D2240/55—Seals

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, a plurality of sealing plates, which are held in two radially spaced apart annular grooves, wherein the first annular groove is provided in the wheel disc and axially outwardly by an annular 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 grooves of the wheel disc, wherein successively, the sealing plates are inserted into 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 suitable.
  • a disadvantage of the known wheel disc arrangements is that the sealing plates are pressed during normal operation of the wheel disc assembly under the action of the prevailing centrifugal force against the blade means, so that the entire weight of the sealing plates on the blade means loads. This leads to a high load on the connections between the wheel disc and the Bucket devices, which is why they must be made very solid, which is associated with high costs.
  • the present invention provides a Radterionan extract of the aforementioned type, which is characterized in that the first annular groove is formed undercut and viewed in cross section has at least one axially projecting retaining projection, which is provided with a contact surface, and in that the sealing plates Viewed in cross-section of the inner diameter in each case at least one corresponding to the at least one retaining projection formed, 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 formed are that support the supporting surfaces of the sealing plates during the normal operation of the Radusionnan angel under the action of a centrifugal force against the contact surface of the at least one retaining projection.
  • the sealing plates comprise in the region of the inner diameter in cross-section two formed corresponding to the retaining projections, axially opposite and facing away from each other support projections, which are each provided with a support surface, wherein the contact surfaces and the support surfaces are formed such that support the support surfaces of the sealing plates during normal operation of the Radusionnanowski extract under the influence of centrifugal force against the contact surfaces of the retaining projections.
  • the contact surfaces of the at least one holding projection and the support surfaces of the sealing plates each extend both transversely to the radial direction and transversely to the axial direction.
  • the contact surfaces and the wings are each inclined.
  • the side surfaces of the sealing plates extend at least partially transversely to the axial direction and are formed such that the sealing plates overlap in the intended state with respect to the axial direction in the region of their side surfaces. In this way, a sealing effect is achieved between the side surfaces adjacent arranged sealing plates in the axial direction.
  • the side surfaces of the sealing plates are stepped, so that the sealing plates can be displaced relative to each other by a predetermined amount while maintaining an overlap in the circumferential direction.
  • the grading should be chosen such that the sealing plates in a state in which all the sealing plates of a Radularnanowski are mounted, can be pushed together so that between two adjacently arranged sealing plates, a distance can be set, which is greater than the width of a single sealing plate.
  • Such a configuration may be advantageous depending on the type of mounting of the sealing sheets, as will become apparent from the embodiment described below with reference to the figures.
  • At least one axially extending through the annular projection recess is provided whose minimum width in the circumferential direction is greater than the width of the sealing plates in the region of the inner diameter, so that a sealing plate axially inserted through the recess between the annular grooves and in Can be moved circumferentially guided by these. 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. In addition, the individual sealing plates can be removed in the case of service through the recess again without much effort.
  • two recesses are provided, which are formed opposite each other in the wheel disc.
  • the assembly and disassembly of the sealing plates are facilitated.
  • a potential imbalance is compensated by the provision of a second recess arranged opposite the first recess.
  • At least one closure piece is provided, which can be fastened detachably to the wheel disk for closing the at least one recess, the closure piece having a receiving surface for receiving at least one sealing sheet.
  • the at least one closure piece on opposite sides radially outwardly projecting Ver gleich Swissvorsprünge, which engage in the intended state in correspondingly formed pockets of the recess.
  • the closure piece can be secured in the circumferential direction of the wheel disc.
  • the at least one closure piece in the region of its receiving surface has a web extending in the radial direction, which engages in the intended state in a correspondingly formed, formed on the inner diameter of at least two sealing plates Dichtblechnuten.
  • a securing of the closure piece is achieved in the intended state by or through the adjacent thereto positioned sealing plates.
  • edges of the annular groove and / or the supporting projections and / or the closure piece are provided with radii, in order to avoid voltage peaks.
  • FIGS. 1 to 4 show a wheel disc assembly 1 according to an embodiment of the present invention or components thereof.
  • the wheel disc assembly 1 comprises a wheel disc 2, a plurality of blade means 3 which are fixed along the outer periphery of the wheel disc 2, and a plurality of sealing plates 4, which are held between the wheel disc 2 and the blade means 3 in two radially spaced annular grooves 5 and 6.
  • the first annular groove 5 is provided in the wheel disc 2 and is limited axially outwardly by an annular projection 7.
  • the second annular groove 6 is defined by a plurality of adjacently arranged annular groove segments which are respectively formed in the blade devices 3.
  • the wheel disc 2 comprises at least one axially extending through the annular projection 7 through recess 8, the minimum width in the circumferential direction is greater than the width of the sealing plates 4 at the inner diameter. Accordingly, the sealing plates 4 can be axially inserted through the recess 8 between the annular grooves 5 and 6 and moved in the circumferential direction of these.
  • the wheel disc assembly 1 also comprises a closure piece 9, which can be releasably secured to the wheel disc 2.
  • the provided on the wheel disc 2 annular groove 5 has, viewed in cross-section, two axially opposite and mutually facing retaining projections 10, which are each provided with a contact surface 11.
  • the sealing plates 4, in the region of their inner diameter, when viewed in cross-section, correspond to two corresponding to the holding projections 10 formed, axially opposite each other and facing away from each other support projections 12, which are each provided with a support surface 13.
  • the holding projections 10 and the supporting projections 12 each extend transversely to the radial direction R as well as transversely to the axial direction A and are presently arranged on the bisecting line, although other inclinations are possible.
  • the contact surfaces 11 of the retaining projections 10, the support surfaces 13 of the support projections 12 and the height of the sealing plates 4 are formed or selected such that the support surfaces 13 of the sealing plates 4 during normal operation of the Radepticnan extract 1 under the action of centrifugal force against the contact surfaces 11 of Support holding projections 10.
  • the side surfaces 14 of the sealing plates 4 extend at least partially transversely to the axial device A and are formed such that the sealing plates 4 overlap in their intended condition with respect to the axial direction A in the region of their side surfaces 14.
  • the side surfaces 14 of the sealing plates 4 are stepped, so that adjacent arranged and overlapping sealing plates 4 can be displaced in the radial direction while maintaining the overlap.
  • the degree of overlap is selected such that the sealing sheets 4 are mounted in a state in which all the sealing sheets 4 are mounted on the wheel disc assembly 1, as shown in FIG FIG. 1 is shown, can slide into one another such that between two adjacently arranged sealing plates 4, a distance can be set, which is greater than the maximum width of the sealing plates 4.
  • the recess 8 comprises pockets 15 arranged on both sides, which extend axially through the entire annular projection 7 and form undercuts in the radial direction.
  • the closure piece 9 comprises correspondingly formed to the pockets 15, radially outwardly projecting VerMAN Swissvorsprünge 16 which engage in the intended condition of the closure piece 9 in the pockets 15, whereby a securing of the closure piece 9 achieved in the radial direction becomes.
  • the closure piece 9 further comprises a receiving surface 17 which serves to receive at least one sealing plate 4. In the region of the receiving surface 17, the closure piece 9 has a web 18 extending in the radial direction, which engages in the intended state in a correspondingly formed, provided on the inner diameter of the sealing plates 4 Dichtblechnuten 19.
  • the sealing plates 4 are moved in the circumferential direction in its intended position.
  • the Dichtblechnuten 19 of two adjacent sealing plates 4 are each partially partially with the protruding from the receiving surface 17 of the closure piece 9 web 18 is engaged.
  • the sealing plates 4 are fixed by suitable means in their intended circumferential position.
  • a fixation for example, using bolts not shown in detail, which extend through provided in the sealing plates 4, extending in the radial direction elongated holes and fixed to the wheel disc 2.
  • the slots are used to allow movement of the sealing plates 4 during normal operation of the wheel disc assembly 1 in the radial direction.
  • other suitable fastening means can be used to the To fix sealing plates 4 in their intended circumferential position.
  • the closure piece 9 is fixed thanks to the engagement between the Dichtblechnuten 19 and the web 18 in the axial direction.
  • a significant advantage of the wheel disc assembly 1 is that the sealing plates can be mounted and dismounted easily and without difficulty, even if the blade devices 3 are already or still fixed to the wheel disc 2. Further, the contact surface 11 of the retaining projections 10, the support surfaces 13 of the support projections 12 and the height of the sealing plates 4 are formed such that the support surfaces 13 of the sealing plates 4 during normal operation of the Radusionnan Aunt 1 under the action of centrifugal force against the contact surface 11 of the retaining projections 10 support. Thus, the weight of the sealing plates 4 is taken up by the wheel disc 2, resulting in that the connection areas between the wheel disc 2 and the blade means 3 must be less stable and thus can be produced more cheaply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP14177468.7A 2014-07-17 2014-07-17 Assemblage de disque de roue Withdrawn EP2975219A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14177468.7A EP2975219A1 (fr) 2014-07-17 2014-07-17 Assemblage de disque de roue
JP2017502632A JP6463829B2 (ja) 2014-07-17 2015-07-09 ホイールディスクアセンブリ
EP15738029.6A EP3129600B1 (fr) 2014-07-17 2015-07-09 Assemblage de disque de roue
CN201580038898.4A CN106536863B (zh) 2014-07-17 2015-07-09 轮盘组件
US15/324,857 US10309234B2 (en) 2014-07-17 2015-07-09 Wheel disk assembly
PCT/EP2015/065664 WO2016008791A1 (fr) 2014-07-17 2015-07-09 Ensemble formant disque de roue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14177468.7A EP2975219A1 (fr) 2014-07-17 2014-07-17 Assemblage de disque de roue

Publications (1)

Publication Number Publication Date
EP2975219A1 true EP2975219A1 (fr) 2016-01-20

Family

ID=51205300

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14177468.7A Withdrawn EP2975219A1 (fr) 2014-07-17 2014-07-17 Assemblage de disque de roue
EP15738029.6A Active EP3129600B1 (fr) 2014-07-17 2015-07-09 Assemblage de disque de roue

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15738029.6A Active EP3129600B1 (fr) 2014-07-17 2015-07-09 Assemblage de disque de roue

Country Status (5)

Country Link
US (1) US10309234B2 (fr)
EP (2) EP2975219A1 (fr)
JP (1) JP6463829B2 (fr)
CN (1) CN106536863B (fr)
WO (1) WO2016008791A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3113921A1 (fr) * 2020-09-08 2022-03-11 Safran Aircraft Engines Roue aubagée de turbomachine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201508040D0 (en) * 2015-05-12 2015-06-24 Rolls Royce Plc A bladed rotor for a gas turbine engine
EP3511524A1 (fr) 2018-01-10 2019-07-17 Siemens Aktiengesellschaft Rotor doté des éléments d'étanchéité montés au niveau des rainures de maintien de l'aube de rotor
EP3564489A1 (fr) 2018-05-03 2019-11-06 Siemens Aktiengesellschaft Rotor à surfaces de contact optimisées au niveau de forces centrifuges
CN117507016A (zh) * 2023-11-10 2024-02-06 佛山市南海合丰橡胶制品有限公司 一种橡胶制品循环切割装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648799A (en) * 1981-09-22 1987-03-10 Westinghouse Electric Corp. Cooled combustion turbine blade with retrofit blade seal
US20080008593A1 (en) * 2006-07-06 2008-01-10 Siemens Power Generation, Inc. Turbine blade self locking seal plate system
EP1916389A1 (fr) * 2006-10-26 2008-04-30 Siemens Aktiengesellschaft Assemblage d'aubes de turbine
EP1944472A1 (fr) * 2007-01-09 2008-07-16 Siemens Aktiengesellschaft Partie axiale d'un rotor de turbine, élément d'étanchéité pour un rotor équipé d'aubes de rotor d'une turbine et rotor de turbine
US20080181767A1 (en) * 2007-01-30 2008-07-31 Siemens Power Generation, Inc. Turbine seal plate locking system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB802476A (en) * 1955-09-29 1958-10-08 Rolls Royce Improvements in or relating to rotors of axial-flow fluid machines for example compressors and turbines
US3572966A (en) 1969-01-17 1971-03-30 Westinghouse Electric Corp Seal plates for root cooled turbine rotor blades
JPS5844202A (ja) 1981-09-08 1983-03-15 Hitachi Ltd タ−ビン動翼固定装置
EP2873807A1 (fr) * 2013-11-18 2015-05-20 Siemens Aktiengesellschaft Plaque de recouvrement, aube mobile, disque de roue, boulon et turbine à gaz
EP2933436A1 (fr) * 2014-04-15 2015-10-21 Siemens Aktiengesellschaft Disque de roue doté d'au moins une tôle d'étanchéité
EP2940249A1 (fr) * 2014-04-29 2015-11-04 Siemens Aktiengesellschaft Agencement de disque de roue et procédé de montage d'un agencement de disque de roue
EP2975218A1 (fr) * 2014-07-17 2016-01-20 Siemens Aktiengesellschaft Assemblage de disque de roue
EP3015655A1 (fr) * 2014-10-30 2016-05-04 Siemens Aktiengesellschaft Agencement de disque de roue doté de tôles d'étanchéité
EP3015656A1 (fr) * 2014-10-30 2016-05-04 Siemens Aktiengesellschaft Agencement de disque de roue
EP3061916A1 (fr) * 2015-02-24 2016-08-31 Siemens Aktiengesellschaft Agencement de disque de rotor et procédé de montage d'un agencement de disque de rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648799A (en) * 1981-09-22 1987-03-10 Westinghouse Electric Corp. Cooled combustion turbine blade with retrofit blade seal
US20080008593A1 (en) * 2006-07-06 2008-01-10 Siemens Power Generation, Inc. Turbine blade self locking seal plate system
EP1916389A1 (fr) * 2006-10-26 2008-04-30 Siemens Aktiengesellschaft Assemblage d'aubes de turbine
EP1944472A1 (fr) * 2007-01-09 2008-07-16 Siemens Aktiengesellschaft Partie axiale d'un rotor de turbine, élément d'étanchéité pour un rotor équipé d'aubes de rotor d'une turbine et rotor de turbine
US20080181767A1 (en) * 2007-01-30 2008-07-31 Siemens Power Generation, Inc. Turbine seal plate locking system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3113921A1 (fr) * 2020-09-08 2022-03-11 Safran Aircraft Engines Roue aubagée de turbomachine

Also Published As

Publication number Publication date
JP6463829B2 (ja) 2019-02-06
WO2016008791A1 (fr) 2016-01-21
CN106536863B (zh) 2018-06-05
US20170204732A1 (en) 2017-07-20
EP3129600B1 (fr) 2018-04-18
CN106536863A (zh) 2017-03-22
US10309234B2 (en) 2019-06-04
EP3129600A1 (fr) 2017-02-15
JP2017522491A (ja) 2017-08-10

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