EP3129600B1 - Assemblage de disque de roue - Google Patents

Assemblage de disque de roue Download PDF

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Publication number
EP3129600B1
EP3129600B1 EP15738029.6A EP15738029A EP3129600B1 EP 3129600 B1 EP3129600 B1 EP 3129600B1 EP 15738029 A EP15738029 A EP 15738029A EP 3129600 B1 EP3129600 B1 EP 3129600B1
Authority
EP
European Patent Office
Prior art keywords
sealing plates
wheel disk
support
disk assembly
projection
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.)
Active
Application number
EP15738029.6A
Other languages
German (de)
English (en)
Other versions
EP3129600A1 (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
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
Publication of EP3129600A1 publication Critical patent/EP3129600A1/fr
Application granted granted Critical
Publication of EP3129600B1 publication Critical patent/EP3129600B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 the sealing plates In order to install the last two vane devices, all the sealing plates must already be mounted and moved so far over their overlap areas in the annular grooves that the vane devices 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 first annular groove in cross-section two axially opposed and mutually facing retaining projections which are each provided with a contact surface
  • the sealing plates include in the region of the inner diameter in cross-section two corresponding to the retaining projections formed axially opposite each other and from each other way-facing 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. This way will be between the Side surfaces adjacent arranged sealing plates in the axial direction achieved a sealing effect.
  • 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 adjacent sealing plates arranged 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 second recess arranged opposite the first recess compensates for a potential imbalance.
  • 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 additionally comprises a closure piece 9 which can be detachably fastened 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 comprise in the region of their inner diameter in cross-section 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 be pushed into each other, that between two adjacent 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 is achieved in the radial direction.
  • 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 with the protruding from the receiving surface 17 of the closure piece 9 web 18th 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 fix the sealing plates 4 in their intended circumferential position.
  • 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)

Claims (10)

  1. Agencement (1) de disque de roue, comprenant un disque (2) de roue, plusieurs dispositifs (3) à aube, qui sont fixés le long du pourtour extérieur du disque (2) de roue, et plusieurs tôles (4) d'étanchéité, qui sont retenues dans deux rainures (5, 6) annulaires à distance radialement l'une de l'autre,
    dans lequel la première rainure (5) annulaire est prévue dans le disque (2) de roue et est délimitée axialement vers l'extérieur par une saillie (7) annulaire et
    dans lequel la deuxième rainure (6) annulaire est définie par une pluralité de segments de rainure annulaire disposés de manière voisine, qui sont prévus respectivement dans les divers dispositifs (3) à aube, la première rainure (5) annulaire étant constituée en contre-dépouille et ayant, considéré en section transversale, au moins une saillie (10) de retenue en saillie axialement, qui est pourvue d'une surface (11) de contact, et en ce que les tôles (4) d'étanchéité ont, dans la partie du diamètre intérieur, considéré en section transversale, respectivement au moins une saillie (12) de support en saillie axialement, constituée de manière correspondante à la au moins une saillie (10) de retenue et pourvue d'une surface (13) de support,
    dans lequel la surface (11) de contact de la au moins une saillie (10) de retenue, la surface (13) de support de la au moins une saillie (12) de support et la hauteur des tôles (4) d'étanchéité sont constituées de manière à ce que les surfaces (13) de support des tôles (4) d'étanchéité s'appuient, pendant le fonctionnement normal de l'agencement (1) de disque de roue, sous l'effet d'une force centrifuge, sur la surface (11) de contact de la au moins une saillie (10) de retenue,
    caractérisé en ce que
    la première rainure (5) annulaire a, considéré en section transversale, deux saillies (11) de retenue opposées l'une à l'autre axialement et tournées l'une vers l'autre, qui sont pourvues chacune d'une surface (11) de contact, et en ce que les tôles (4) d'étanchéité comprennent, dans la partie du diamètre intérieur, considéré en section transversale, deux saillies (12) de support constituées de manière correspondante aux saillies (10) de retenue opposées l'une à l'autre axialement et s'éloignant l'une de l'autre, qui sont pourvues chacune d'une surface (13) de support, les surfaces (11) de contact et les surfaces (13) de support étant constituées de manière à ce que les surfaces (13) de support des tôles (4) d'étanchéité s'appuient, pendant le fonctionnement normal de l'agencement (1) de disque de roue, sous l'effet d'une force centrifuge, sur les surfaces (11) de contact des saillies (10) de retenue.
  2. Agencement (1) de disque de roue suivant la revendication 1,
    caractérisé en ce que
    la surface (11) de contact de la au moins une saillie (10) de retenue et les surfaces (13) de support des tôles (4) d'étanchéité s'étendent respectivement, à la fois, transversalement à la direction radiale et transversalement à la direction axiale.
  3. Agencement (1) de disque de roue suivant la revendication 1 ou 2,
    caractérisé en ce que
    les surfaces (14) latérales des tôles (4) d'étanchéité s'étendent, au moins en partie, transversalement à la direction axiale et sont constituées de manière à ce que les tôles (4) d'étanchéité se chevauchent dans l'état normal, rapporté à la direction axiale, dans leur partie de leurs surfaces (14) latérales.
  4. Agencement (1) de disque de roue suivant la revendication 3,
    caractérisé en ce que
    les surfaces (14) latérales des tôles (4) d'étanchéité sont étagées.
  5. Agencement (1) de disque de roue suivant l'une des revendications précédentes,
    caractérisé en ce que
    il est prévu au moins un évidement (8), qui s'étend en traversant radialement la saillie (7) annulaire et dont la largeur minimum, dans la direction périphérique, est plus grande que la largeur des tôles (4) d'étanchéité dans la région du diamètre intérieur, de sorte qu'une tôle (4) d'étanchéité peut être insérée par l'évidement (8) entre les rainures (5, 6) annulaires et être déplacée en étant guidée par celles-ci dans la direction périphérique.
  6. Agencement (1) de disque de roue suivant la revendication 5,
    caractérisé en ce que
    il est prévu deux évidements (9), qui sont opposés l'un à l'autre dans le disque (2) de roue.
  7. Agencement (1) de disque de roue suivant la revendication 5 ou 6,
    caractérisé en ce que
    il est prévu au moins une pièce (9) de fermeture, qui, pour fermer le au moins un évidement (8), peut être fixée de manière amovible au disque (2) de roue,
    dans lequel la pièce (9) de fermeture a une surface (17) de réception pour recevoir au moins une tôle (4) d'étanchéité.
  8. Agencement (1) de disque de roue suivant la revendication 7,
    caractérisé en ce que
    la au moins une pièce (9) de fermeture a, sur des côtés opposés, des saillies (16) de pièce de fermeture en saillie radialement vers l'extérieur, qui, à l'état normal, pénètrent dans des poches (15), constituées de manière correspondante, de l'évidement (8).
  9. Agencement (1) de disque de roue suivant la revendication 7 ou 8,
    caractérisé en ce que
    la au moins une pièce (9) de fermeture a, dans la région de sa surface (17) de réception, une barrette (18), qui s'étend dans la direction radiale et qui, dans l'état normal, pénètre dans des rainures (19) de tôle d'étanchéité constituées de manière correspondante et constituées au diamètre intérieur d'au moins deux tôles (4) d'étanchéité.
  10. Agencement (1) de disque de roue suivant l'une des revendications précédentes,
    caractérisé en ce que
    des bords de la rainure (5) annulaire et/ou des saillies (12) de support et/ou de la pièce (8) de fermeture sont pourvus de rayons.
EP15738029.6A 2014-07-17 2015-07-09 Assemblage de disque de roue Active EP3129600B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14177468.7A EP2975219A1 (fr) 2014-07-17 2014-07-17 Assemblage de disque de roue
PCT/EP2015/065664 WO2016008791A1 (fr) 2014-07-17 2015-07-09 Ensemble formant disque de roue

Publications (2)

Publication Number Publication Date
EP3129600A1 EP3129600A1 (fr) 2017-02-15
EP3129600B1 true EP3129600B1 (fr) 2018-04-18

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 Before (1)

Application Number Title Priority Date Filing Date
EP14177468.7A Withdrawn EP2975219A1 (fr) 2014-07-17 2014-07-17 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)

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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
FR3113921A1 (fr) * 2020-09-08 2022-03-11 Safran Aircraft Engines Roue aubagée de turbomachine
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

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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

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Also Published As

Publication number Publication date
EP2975219A1 (fr) 2016-01-20
JP6463829B2 (ja) 2019-02-06
WO2016008791A1 (fr) 2016-01-21
CN106536863B (zh) 2018-06-05
US20170204732A1 (en) 2017-07-20
CN106536863A (zh) 2017-03-22
US10309234B2 (en) 2019-06-04
EP3129600A1 (fr) 2017-02-15
JP2017522491A (ja) 2017-08-10

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