EP3129600B1 - Wheel disc assembly - Google Patents

Wheel disc assembly Download PDF

Info

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)
French (fr)
Other versions
EP3129600A1 (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
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
Publication of EP3129600A1 publication Critical patent/EP3129600A1/en
Application granted granted Critical
Publication of EP3129600B1 publication Critical patent/EP3129600B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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)

Description

Die vorliegende Erfindung betrifft eine Radscheibenanordnung mit einer Radscheibe, mehreren Schaufeleinrichtungen, die entlang des Außenumfangs der Radscheibe befestigt sind, mehreren Dichtblechen, die in zwei radial voneinander beabstandeten Ringnuten gehalten sind, wobei die erste Ringnut in der Radscheibe vorgesehen ist und axial auswärts durch einen Ringvorsprung begrenzt ist, und wobei die zweite Ringnut durch eine Vielzahl von benachbart angeordneten Ringnutsegmenten definiert ist, die jeweils in den einzelnen Schaufeleinrichtungen vorgesehen sind.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.

Radscheibenanordnungen der eingangs genannten Art sind im Stand der Technik in unterschiedlichsten Ausgestaltungen bekannt. Während der Montage werden die Schaufeleinrichtungen in Nuten der Radscheibe eingeschoben, wobei sukzessiv auch die Dichtbleche in die beiden Ringnuten eingesetzt werden. Um die letzten beiden Schaufeleinrichtungen einbauen zu können, müssen sämtliche Dichtbleche bereits montiert und soweit über ihre Überlappungsbereiche in den Ringnuten verschoben sein, dass die Schaufeleinrichtungen in die zugeordneten Nuten der Radscheibe eingebaut werden können. Anschließend werden die Dichtbleche in Umfangsrichtung wieder zurück in ihre bestimmungsgemäße Position geschoben und dort gegen ein Verschieben geeignet gesichert.Wheel disc assemblies of the type mentioned are known in the prior art in a variety of configurations. During assembly, the blade devices are inserted into grooves of the wheel disc, wherein successively, the sealing plates are inserted into the two annular grooves. 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.

Ein Nachteil der bekannten Radscheibenanordnungen besteht darin, dass die Dichtbleche während des bestimmungsgemäßen Betriebs der Radscheibenanordnung unter Einwirkung der vorherrschenden Fliehkraft gegen die Schaufeleinrichtungen gedrückt werden, so dass das gesamte Eigengewicht der Dichtbleche auf den Schaufeleinrichtungen lastet. Dies führt zu einer hohen Belastung der Verbindungen zwischen der Radscheibe und den Schaufeleinrichtungen, weshalb diese sehr massiv ausgebildet werden müssen, was mit hohen Kosten einhergeht.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.

Alternativ dazu ist es beispielsweise aus der EP 1 944 472 A1 bekannt, die Dichtbleche an der Radscheibe radial zu lagern, so dass deren Fliehkräfte von der Radscheibe aufgenommen werden. Dazu ist an jedem Dichtblech ein Vorsprung vorgesehen, der einen dazu korrespondierenden Vorsprung der Radscheibe hintergreift. Nachteilig ist jedoch die einseitige Kraftleitung in Radscheibe.Alternatively, it is for example from the EP 1 944 472 A1 known to store the sealing plates on the wheel radially, so that their centrifugal forces are absorbed by the wheel disc. For this purpose, a projection is provided on each sealing plate, which engages behind a corresponding projection of the wheel disc. However, a disadvantage is the unilateral power line in wheel disc.

Ausgehend von diesem Stand der Technik ist es eine Aufgabe der vorliegenden Erfindung, eine Radscheibenanordnung der eingangs genannten Art mit alternativem preiswerten Aufbau zu schaffen.Based on this prior art, it is an object of the present invention to provide a Radscheibenanordnung of the aforementioned type with alternative inexpensive structure.

Zur Lösung dieser Aufgabe schafft die vorliegende Erfindung eine Radscheibenanordnung der eingangs genannten Art, die dadurch gekennzeichnet ist, dass die erste Ringnut hinterschnitten ausgebildet ist und im Querschnitt betrachtet zumindest einen axial vorstehenden Haltevorsprung aufweist, der mit einer Anlagefläche versehen ist, und dass die Dichtbleche im Bereich des Innendurchmessers im Querschnitt betrachtet jeweils zumindest einen korrespondierend zu dem zumindest einen Haltevorsprung ausgebildeten, axial vorstehenden Tragvorsprung aufweisen, der mit einer Tragfläche versehen ist, wobei die Anlagefläche des zumindest einen Haltevorsprungs, die Tragfläche des zumindest einen Tragvorsprungs und die Höhe der Dichtbleche derart ausgebildet sind, dass sich die Tragflächen der Dichtbleche während des bestimmungsgemäßen Betriebs der Radscheibenanordnung unter Einwirkung einer Fliehkraft gegen die Anlagefläche des zumindest einen Haltevorsprungs abstützen. Dank dieser Ausgestaltung wird das Eigengewicht der Dichtbleche während des bestimmungsgemäßen Betriebs der Radscheibenanordnung unter Einwirkung einer Fliehkraft durch den zumindest einen Haltevorsprung der Radscheibe aufgenommen. Damit werden die Verbindungen zwischen der Radscheibe und den Schaufeleinrichtungen entlastet, da die Fliehkraftbelastung von den Dichtblechen "entkoppelt" wird. Dies führt dazu, dass die Radscheibe in den besagten Verbindungsbereichen zu den Schaufeleinrichtungen dünner ausgestaltet werden kann. Gleiches gilt auch für die Plattformen der Schaufeleinrichtungen, mit denen die Schaufeleinrichtungen an der Radscheibe gehalten sind, da diese das Gewicht der Dichtbleche nicht aufnehmen müssen. Insgesamt ergibt sich auf diese Weise ein sehr kostengünstiger Aufbau.To achieve this object, the present invention provides a Radscheibenanordnung 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 Radscheibenanordnung under the 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 plates during normal operation of the Radscheibenanordnung under the action of a centrifugal force is absorbed by the at least one retaining projection of the wheel disc. Thus, the connections between the wheel disc and the blade means are relieved, as the Centrifugal load is "decoupled" from the sealing plates. This results in that the wheel disc can be made thinner in the said connection areas to the blade devices. The same applies to the platforms of the blade means with which the blade means are held on the wheel disc, as they do not have to take the weight of the sealing plates. Overall, this results in a very cost-effective design.

Weiter weist die erste Ringnut im Querschnitt betrachtet zwei axial einander gegenüber liegende und zueinander weisende Haltevorsprünge auf, die jeweils mit einer Anlagefläche versehen sind, und die Dichtbleche umfassen im Bereich des Innendurchmessers im Querschnitt betrachtet zwei korrespondierend zu den Haltevorsprüngen ausgebildete, axial einander gegenüberliegende und voneinander weg weisende Tragvorsprünge, die jeweils mit einer Tragfläche versehen sind, wobei die Anlageflächen und die Tragflächen derart ausgebildet sind, dass sich die Tragflächen der Dichtbleche während des bestimmungsgemäßen Betriebs der Radscheibenanordnung unter Einwirkung einer Fliehkraft gegen die Anlageflächen der Haltevorsprünge abstützen. Durch das Vorsehen eines weiteren Haltevorsprungs und eines weiteren Tragvorsprungs wird das Gewicht der Dichtbleche während des bestimmungsgemäßen Betriebs gleichmäßiger verteilt, wodurch eine bessere Stabilität und Krafteinleitung in die Radscheibe erzielt wird.Next, the first annular groove in cross-section two axially opposed and mutually facing retaining projections, which are each provided with a contact surface, and 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 Radscheibenanordnung under the influence of centrifugal force against the contact surfaces of the retaining projections. By providing a further holding projection and a further supporting projection, the weight of the sealing plates is distributed more uniformly during normal operation, whereby a better stability and force introduction into the wheel disc is achieved.

Bevorzugt erstrecken sich die Anlageflächen des zumindest einen Haltevorsprungs und die Tragflächen der Dichtbleche jeweils sowohl quer zur radialen Richtung als auch quer zur axialen Richtung. Mit anderen Worten sind die Anlageflächen sowie die Tragflächen jeweils geneigt.Preferably, 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. In other words, the contact surfaces and the wings are each inclined.

Vorteilhaft erstrecken sich die Seitenflächen der Dichtbleche zumindest teilweise quer zur axialen Richtung und sind derart ausgebildet, dass sich die Dichtbleche im bestimmungsgemäßen Zustand in Bezug auf die axiale Richtung im Bereich ihrer Seitenflächen überlappen. Auf diese Weise wird zwischen den Seitenflächen benachbart angeordneter Dichtbleche in axialer Richtung eine Dichtwirkung erzielt.Advantageously, 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.

Vorteilhaft sind die Seitenflächen der Dichtbleche gestuft ausgebildet, so dass die Dichtbleche unter Beibehaltung einer Überlappung in der Umfangsrichtung zueinander um ein vorbestimmtes Maß verschoben werden können. Die Stufung sollte derart gewählt werden, dass die Dichtbleche in einem Zustand, in dem sämtliche Dichtbleche einer Radscheibenanordnung montiert sind, derart zusammengeschoben werden können, dass zwischen zwei benachbart angeordneten Dichtblechen ein Abstand eingestellt werden kann, der größer als die Breite eines einzelnen Dichtbleches ist. Eine solche Ausgestaltung kann in Abhängigkeit von der Art der Montage der Dichtbleche von Vorteil sein, wie es anhand der nachfolgend unter Bezugnahme auf die Figuren beschriebenen Ausführungsform deutlich wird.Advantageously, 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 Radscheibenanordnung 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.

Gemäß einer Ausgestaltung der vorliegenden Erfindung ist zumindest eine sich axial durch den Ringvorsprung hindurch erstreckende Aussparung vorgesehen, deren minimale Breite in Umfangsrichtung größer als die Breite der Dichtbleche im Bereich des Innendurchmessers ist, so dass ein Dichtblech axial durch die Ausnehmung zwischen den Ringnuten eingesetzt und in Umfangsrichtung von diesen geführt bewegt werden kann. Dank einer solchen Ausnehmung können die Dichtbleche in einfacher Art und Weise in die zugeordneten Ringnuten eingefädelt werden, selbst wenn bereits sämtliche Schaufeleinrichtungen an der Radscheibe montiert sind, wodurch die Montage sehr flexibel gestaltet wird. Darüber hinaus lassen sich die einzelnen Dichtbleche im Servicefall durch die Ausnehmung ohne großen Aufwand wieder entnehmen.According to one embodiment of the present invention, 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.

Bevorzugt sind zwei Ausnehmungen vorgesehen, die einander gegenüber liegend in der Radscheibe ausgebildet sind. Durch einen umfänglichen Versatz der Ausnehmungen, insbesondere um 180 Grad, werden zum einen die Montage und die Demontage der Dichtbleche erleichtert. Zum anderen wird durch das Vorsehen einer gegenüber der ersten Ausnehmung angeordneten zweiten Ausnehmung eine potentielle Unwucht ausgeglichen.Preferably, two recesses are provided, which are formed opposite each other in the wheel disc. By a circumferential offset of the recesses, in particular by 180 degrees, on the one hand, the assembly and disassembly of the sealing plates are facilitated. On the other hand, by providing a second recess arranged opposite the first recess compensates for a potential imbalance.

Vorteilhaft ist zumindest ein Verschlussstück vorgesehen, das zum Verschließen der zumindest einen Ausnehmung lösbar an der Radscheibe befestigbar ist, wobei das Verschlussstück eine Aufnahmefläche zur Aufnahme zumindest eines Dichtbleches aufweist.Advantageously, 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.

Bevorzugt weist das zumindest eine Verschlussstück an gegenüberliegenden Seiten radial auswärts vorstehende Verschlussstückvorsprünge auf, die im bestimmungsgemäßen Zustand in korrespondierend ausgebildete Taschen der Ausnehmung greifen. Auf diese Weise lässt sich das Verschlussstück in Umfangsrichtung an der Radscheibe sichern.Preferably, the at least one closure piece on opposite sides radially outwardly projecting Verschlussstückvorsprünge, which engage in the intended state in correspondingly formed pockets of the recess. In this way, the closure piece can be secured in the circumferential direction of the wheel disc.

Vorteilhaft weist das zumindest eine Verschlussstück im Bereich seiner Aufnahmefläche einen sich in radialer Richtung erstreckenden Steg auf, der im bestimmungsgemäßen Zustand in korrespondierend ausgebildete, am Innendurchmesser von zumindest zwei Dichtblechen ausgebildete Dichtblechnuten greift. Auf diese Weise wird eine Sicherung des Verschlussstückes im bestimmungsgemäß angeordneten Zustand durch das bzw. durch die benachbart zu diesem positionierten Dichtbleche erzielt.Advantageously, 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. In this way, a securing of the closure piece is achieved in the intended state by or through the adjacent thereto positioned sealing plates.

Gemäß einer Ausgestaltung der vorliegenden Erfindung sind Kanten der Ringnut und/oder der Tragvorsprünge und/oder des Verschlussstückes mit Radien versehen, um Spannungsüberhöhungen zu vermeiden.According to one embodiment of the present invention, 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.

Weitere Merkmale und Vorteile der vorliegenden Erfindung werden anhand der nachfolgenden Beschreibung einer Radscheibenanordnung gemäß einer Ausführungsform der vorliegenden Erfindung unter Bezugnahme auf die beiliegende Zeichnung deutlich. Darin ist

Figur 1
eine perspektivische Ansicht einer Radscheibenanordnung gemäß einer Ausführungsform der vorliegenden Erfindung im fertig montierten Zustand;
Figur 2
eine vergrößerte Schnittansicht des in Figur 1 mit dem Bezugszeichen II gekennzeichneten Ausschnittes;
Figur 3
eine vergrößerte Seitenansicht der in Figur 2 dargestellten Anordnung;
Figur 4
eine vergrößerte Ansicht der in Figur 2 dargestellten Anordnung, wobei ein Verschlussstück zu Darstellungszwecken weggelassen ist; und
Figur 5
eine vergrößerte Seitenansicht einer alternativen erfindungsgemäßen Ausführungsform der in den Figuren 2 bis 4 dargestellten Anordnung.
Further features and advantages of the present invention will become apparent from the following description of a Radscheibenanordnung according to an embodiment of the present invention with reference to the accompanying drawings. That's it
FIG. 1
a perspective view of a Radscheibenanordnung according to an embodiment of the present invention in the assembled state;
FIG. 2
an enlarged sectional view of the in FIG. 1 with the reference numeral II marked section;
FIG. 3
an enlarged side view of the in FIG. 2 arrangement shown;
FIG. 4
an enlarged view of the in FIG. 2 illustrated arrangement, wherein a closure piece is omitted for illustrative purposes; and
FIG. 5
an enlarged side view of an alternative embodiment of the invention in the FIGS. 2 to 4 illustrated arrangement.

Die Figuren 1 bis 4 zeigen eine Radscheibenanordnung 1 gemäß einer Ausführungsform der vorliegenden Erfindung bzw. Komponenten derselben. Die Radscheibenanordnung 1 umfasst eine Radscheibe 2, mehrere Schaufeleinrichtungen 3, die entlang des Außenumfangs der Radscheibe 2 befestigt sind, und mehrere Dichtbleche 4, die zwischen der Radscheibe 2 und den Schaufeleinrichtungen 3 in zwei radial voneinander beabstandeten Ringnuten 5 und 6 gehalten sind. Die erste Ringnut 5 ist dabei in der Radscheibe 2 vorgesehen und wird axial auswärts durch einen Ringvorsprung 7 begrenzt. Die zweite Ringnut 6 ist durch eine Vielzahl von benachbart angeordneten Ringnutsegmenten definiert, die jeweils in den Schaufeleinrichtungen 3 ausgebildet sind. Zur Erleichterung der Montage der Dichtbleche 4 umfasst die Radscheibe 2 zumindest eine sich axial durch den Ringvorsprung 7 hindurch erstreckende Ausnehmung 8, deren minimale Breite in Umfangsrichtung größer als die Breite der Dichtbleche 4 am Innendurchmesser ist. Entsprechend können die Dichtbleche 4 axial durch die Ausnehmung 8 zwischen den Ringnuten 5 und 6 eingesetzt und in Umfangsrichtung von diesen geführt bewegt werden. Zum Verschließen der Ausnehmung 8 umfasst die Radscheibenanordnung 1 zudem ein Verschlussstück 9, das lösbar an der Radscheibe 2 befestigt werden kann.The 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. To facilitate the assembly of the sealing plates 4, 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. For closing the recess 8, the wheel disc assembly 1 additionally comprises a closure piece 9 which can be detachably fastened to the wheel disc 2.

Die an der Radscheibe 2 vorgesehene Ringnut 5 weist im Querschnitt betrachtet zwei axial einander gegenüberliegende und zueinander weisende Haltevorsprünge 10 auf, die jeweils mit einer Anlagefläche 11 versehen sind. Die Dichtbleche 4 umfassen im Bereich ihres Innendurchmessers im Querschnitt betrachtet zwei korrespondierend zu den Haltevorsprüngen 10 ausgebildete, axial einander gegenüber und voneinander weg weisende Tragvorsprünge 12, die jeweils mit einer Tragfläche 13 versehen sind. Die Haltevorsprünge 10 und die Tragvorsprünge 12 erstrecken sich jeweils sowohl quer zur radialen Richtung R als auch quer zur axialen Richtung A und sind vorliegend auf der Winkelhalbierenden angeordnet, wobei auch andere Neigungen möglich sind. Die Anlageflächen 11 der Haltevorsprünge 10, die Tragflächen 13 der Tragvorsprünge 12 und die Höhe der Dichtbleche 4 sind derart ausgebildet bzw. gewählt, dass sich die Tragflächen 13 der Dichtbleche 4 während des bestimmungsgemäßen Betriebs der Radscheibenanordnung 1 unter Einwirkung einer Fliehkraft gegen die Anlageflächen 11 der Haltevorsprünge 10 abstützen.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 Radscheibenanordnung 1 under the action of centrifugal force against the contact surfaces 11 of Support holding projections 10.

Die Seitenflächen 14 der Dichtbleche 4 erstrecken sich zumindest teilweise quer zur axialen Einrichtung A und sind derart ausgebildet, dass sich die Dichtbleche 4 in bestimmungsgemäßen Zustand in Bezug auf die axiale Richtung A im Bereich ihrer Seitenflächen 14 überlappen. Vorliegend sind die Seitenflächen 14 der Dichtbleche 4 gestuft ausgebildet, so dass sich benachbart angeordnete und einander überlappende Dichtbleche 4 in radialer Richtung unter Beibehaltung der Überlappung verschieben lassen. Das Maß der Überlappung ist derart gewählt, dass sich die Dichtbleche 4 in einem Zustand, in dem sämtliche Dichtbleche 4 an der Radscheibenanordnung 1 montiert sind, wie es in Figur 1 gezeigt ist, derart ineinander schieben lassen, dass zwischen zwei benachbart angeordneten Dichtblechen 4 ein Abstand eingestellt werden kann, der größer als die maximale Breite der Dichtbleche 4 ist.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. In the present case, 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.

Die Ausnehmung 8 umfasst beidseitig angeordnete Taschen 15, die sich axial durch den gesamten Ringvorsprung 7 erstrecken und in radialer Richtung Hinterschneidungen bilden. Das Verschlussstück 9 umfasst korrespondierend zu den Taschen 15 ausgebildete, radial auswärts vorstehende Verschlussstückvorsprünge 16, die im bestimmungsgemäß angeordneten Zustand des Verschlussstückes 9 in die Taschen 15 greifen, wodurch in radialer Richtung eine Sicherung des Verschlussstückes 9 erzielt wird. Das Verschlussstück 9 umfasst ferner eine Aufnahmefläche 17, die zur Aufnahme zumindest eines Dichtbleches 4 dient. Im Bereich der Aufnahmefläche 17 weist das Verschlussstück 9 einen sich in radialer Richtung erstreckenden Steg 18 auf, der im bestimmungsgemäßem Zustand in korrespondierend ausgebildete, am Innendurchmesser der Dichtbleche 4 vorgesehene Dichtblechnuten 19 greift.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 Verschlussstückvorsprünge 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.

Zur Montage der in Figur 1 dargestellten Radscheibenanordnung 1 werden in einem ersten Schritt sämtliche Schaufeleinrichtungen 3 in bekannter Weise an der Radscheibe 2 befestigt. Anschließend werden die einzelnen Dichtbleche 4 der Reihe nach axial durch die Ausnehmung 8 in die Ringnuten 5 und 6 eingeführt und dann in Umfangsrichtung verschoben und dicht an dicht angeordnet. Dank der gestuften Ausbildung der Seitenflächen 14 der Dichtbleche 4 ist es dabei möglich, dass nach der Montage sämtlicher Dichtbleche 4 der Bereich der Ausnehmung 8 dichtblechfrei bleibt. In einem weiteren Schritt wird nunmehr das Verschlussstück 9 axial in die Ausnehmung 8 eingeschoben, wobei die Verschlussstückvorsprünge 16 mit den Taschen 15 des Ringvorsprungs 7 in Eingriff kommen, wodurch eine radiale Sicherung des Verschlussstückes 9 erzielt wird. In einem sich anschließenden Schritt werden die Dichtbleche 4 in Umfangsrichtung in ihre bestimmungsgemäße Position verschoben. Dabei werden die Dichtblechnuten 19 zweier benachbarter Dichtbleche 4 jeweils teilweise mit dem von der Aufnahmefläche 17 des Verschlussstückes 9 vorstehenden Steg 18 in Eingriff gebracht. In einem weiteren Schritt werden die Dichtbleche 4 durch geeignete Mittel in ihrer bestimmungsgemäßen Umfangsposition fixiert. So kann eine Fixierung beispielsweise unter Verwendung nicht näher dargestellter Bolzen erfolgen, die sich durch in den Dichtblechen 4 vorgesehene, in radialer Richtung erstreckende Langlöcher erstrecken und an der Radscheibe 2 festgelegt sind. Die Langlöcher dienen dazu, eine Bewegung der Dichtbleche 4 während des bestimmungsgemäßen Betriebs der Radscheibenanordnung 1 in radialer Richtung zu ermöglichen. Alternativ können natürlich auch andere geeignete Befestigungsmittel eingesetzt werden, um die Dichtbleche 4 in ihrer bestimmungsgemäßen Umfangsposition zu fixieren. Im nunmehr fertig montierten Zustand der Radscheibenanordnung 1 ist das Verschlussstück 9 dank des Eingriffs zwischen den Dichtblechnuten 19 und dem Steg 18 auch in axialer Richtung fixiert.For mounting the in FIG. 1 shown wheel disk assembly 1, all blade devices 3 are fixed in a known manner to the wheel disc 2 in a first step. Subsequently, the individual sealing plates 4 are inserted in sequence axially through the recess 8 in the annular grooves 5 and 6 and then displaced in the circumferential direction and arranged close together. Thanks to the stepped design of the side surfaces 14 of the sealing plates 4, it is possible that after the installation of all sealing plates 4, the region of the recess 8 remains free of sheet metal. In a further step, the closure piece 9 is now inserted axially into the recess 8, wherein the Verschlussstückvorsprünge 16 engage with the pockets 15 of the annular projection 7, whereby a radial securing of the closure piece 9 is achieved. In a subsequent step, 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. In a further step, the sealing plates 4 are fixed by suitable means in their intended circumferential position. Thus, 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. Alternatively, of course, other suitable fastening means can be used to fix the sealing plates 4 in their intended circumferential position. In now fully assembled state of the wheel disc assembly 1, the closure piece 9 is fixed thanks to the engagement between the Dichtblechnuten 19 and the web 18 in the axial direction.

Ein wesentlicher Vorteil der Radscheibenanordnung 1 besteht darin, dass sich die Dichtbleche einfach und problemlos montieren und demontieren lassen, und zwar auch dann, wenn die Schaufeleinrichtungen 3 bereits bzw. noch an der Radscheibe 2 fixiert sind. Ferner sind die Anlagenfläche 11 der Haltevorsprünge 10, die Tragflächen 13 der Tragvorsprünge 12 und die Höhe der Dichtbleche 4 derart ausgebildet sind, dass sich die Tragflächen 13 der Dichtbleche 4 während des bestimmungsgemäßen Betriebs der Radscheibenanordnung 1 unter Einwirkung einer Fliehkraft gegen die Anlagefläche 11 der Haltevorsprünge 10 abstützen. Damit wird das Eigengewicht der Dichtbleche 4 durch die Radscheibe 2 aufgenommen, was dazu führt, dass die Verbindungsbereiche zwischen der Radscheibe 2 und den Schaufeleinrichtungen 3 weniger stabil sein müssen und damit kostengünstiger hergestellt werden können. Dank der symmetrischen Ausbildung der Haltevorsprünge 10 und der Tragvorsprünge 12 wird ferner eine sehr homogene Krafteinleitung in die Radscheibe 2 erzielt. Es sollte allerdings klar sein, dass es grundsätzlich ausreicht, einen einzelnen Haltevorsprung 10 und einen einzelnen Tragvorsprung 12 vorzusehen, wie es in Figur 5 dargestellt ist, in der gleiche oder gleichartige Bauteile mit denselben Bezugsziffern wie in den Figuren 1 bis 4 versehen sind.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 Radscheibenanordnung 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. Thanks to the symmetrical design of the holding projections 10 and the supporting projections 12, a very homogeneous introduction of force is also achieved in the wheel disc 2. It should be understood, however, that it is generally sufficient to provide a single retaining projection 10 and a single support projection 12, as shown in FIG FIG. 5 is shown in the same or Similar components with the same reference numerals as in the FIGS. 1 to 4 are provided.

Obwohl die Erfindung im Detail durch das bevorzugte Ausführungsbeispiel näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Erfindung zu verlassen.Although the invention has been further illustrated and described in detail by the preferred embodiment, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

Claims (10)

  1. Wheel disk assembly (1), having a wheel disk (2), a plurality of blade devices (3), which are fastened along the outer circumference of the wheel disk (2), and a plurality of sealing plates (4), which are retained in two annular grooves (5, 6) spaced apart from each other radially,
    wherein the first annular groove (5) is provided in the wheel disk (2) and is bounded axially outward by an annular projection (7), and
    wherein the second annular groove (6) is defined by a multiplicity of adjacently arranged annular groove segments, which are each provided in the individual blade devices (3), wherein the first annular groove (5) is of undercut design and, when viewed in cross section, has at least one axially protruding retaining projection (10), which is provided with a contact surface (11), and that the sealing plates (4), when viewed in cross section, each have at least one axially protruding support projection (12) in the region of the inside diameter, said support projection being designed to correspond to the at least one retaining projection (10) and being provided with a support surface (13),
    wherein the contact surface (11) of the at least one retaining projection (10), the support surface (13) of the at least one support projection (12) and the height of the sealing plates (4) are designed in such a way that the support surfaces (13) of the sealing plates (4) are supported against the contact surface (11) of the at least one retaining projection (10) under the action of a centrifugal force during the operation of the wheel disk assembly (1) as intended,
    characterized in that
    the first annular groove (5), when viewed in cross section, has two retaining projections (10), which are situated axially opposite each other, are directed toward each other and are each provided with a contact surface (11), and in that the sealing plates (4), when viewed in cross section, comprise two support projections (12) in the region of the inside diameter, which are designed to correspond to the retaining projections (10), are situated axially opposite each other and are directed away from each other, each of said projections being provided with a support surface (13), wherein the contact surfaces (11) and the support surfaces (13) are designed in such a way that the support surfaces (13) of the sealing plates (4) are supported against the contact surfaces (11) of the retaining projections (10) under the action of a centrifugal force during the operation of the wheel disk assembly (1) as intended.
  2. Wheel disk assembly (1) according to Claim 1,
    characterized in that
    the contact surface (11) of the at least one retaining projection (10) and the contact surfaces (13) of the sealing plates (4) each extend both transversely to the radial direction and transversely to the axial direction.
  3. Wheel disk assembly (1) according to Claim 1 or 2,
    characterized in that
    the lateral surfaces (14) of the sealing plates (4) extend at least in part transversely to the axial direction and are designed in such a way that the sealing plates (4) overlap in the region of the lateral surfaces (14) thereof in respect of the axial direction in the intended state.
  4. Wheel disk assembly (1) according to Claim 3,
    characterized in that
    the lateral surfaces (14) of the sealing plates (4) are of stepped design.
  5. Wheel disk assembly (1) according to one of the preceding claims,
    characterized in that
    at least one recess (8) extending axially through the annular projection (7) is provided, the minimum width of which recess in the circumferential direction is greater than the width of the sealing plates (4) in the region of the inside diameter, with the result that a sealing plate (4) can be inserted axially through the recess (8) between the annular grooves (5, 6) and can be moved in the circumferential direction while being guided by the latter.
  6. Wheel disk assembly (1) according to Claim 5,
    characterized in that
    two recesses (8) are provided, which are formed opposite each other in the wheel disk (2).
  7. Wheel disk assembly (1) according to Claim 5 or 6,

    characterized in that
    at least one closure piece (9) is provided, which can be detachably fastened to the wheel disk (2) to close the at least one recess (8).
    wherein the closure piece (9) has a receiving surface (17) for receiving at least one sealing plate (4).
  8. Wheel disk assembly (1) according to Claim 7,
    characterized in that
    the at least one closure piece (9) has, on opposite sides, radially outward-protruding closure-piece projections (16), which engage in correspondingly designed pockets (15) of the recess (8) in the intended state.
  9. Wheel disk assembly (1) according to Claim 7 or 8,
    characterized in that
    in the region of its receiving surface (17), the at least one closure piece (9) has a web (18), which extends in the radial direction and engages in correspondingly designed sealing plate grooves (19) formed on the inside diameter of at least two sealing plates (4) in the intended state.
  10. Wheel disk assembly (1) according to one of the preceding claims,
    characterized in that
    edges of the annular groove (5) and/or of the support projections (12) and/or of the closure piece (8) are provided with radii.
EP15738029.6A 2014-07-17 2015-07-09 Wheel disc assembly Active EP3129600B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14177468.7A EP2975219A1 (en) 2014-07-17 2014-07-17 Wheel disc assembly
PCT/EP2015/065664 WO2016008791A1 (en) 2014-07-17 2015-07-09 Wheel disc arrangement

Publications (2)

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

Family

ID=51205300

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14177468.7A Withdrawn EP2975219A1 (en) 2014-07-17 2014-07-17 Wheel disc assembly
EP15738029.6A Active EP3129600B1 (en) 2014-07-17 2015-07-09 Wheel disc assembly

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14177468.7A Withdrawn EP2975219A1 (en) 2014-07-17 2014-07-17 Wheel disc assembly

Country Status (5)

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

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 (en) 2018-01-10 2019-07-17 Siemens Aktiengesellschaft Rotor with sealing elements fixed in blade retention grooves
EP3564489A1 (en) 2018-05-03 2019-11-06 Siemens Aktiengesellschaft Rotor with for centrifugal forces optimized contact surfaces
FR3113921A1 (en) * 2020-09-08 2022-03-11 Safran Aircraft Engines Turbomachine bladed wheel

Family Cites Families (15)

* 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 (en) 1981-09-08 1983-03-15 Hitachi Ltd Fixing device of turbine moving blade
US4648799A (en) * 1981-09-22 1987-03-10 Westinghouse Electric Corp. Cooled combustion turbine blade with retrofit blade seal
US7500832B2 (en) * 2006-07-06 2009-03-10 Siemens Energy, Inc. Turbine blade self locking seal plate system
EP1916389A1 (en) 2006-10-26 2008-04-30 Siemens Aktiengesellschaft Turbine blade assembly
EP1944472A1 (en) * 2007-01-09 2008-07-16 Siemens Aktiengesellschaft Axial rotor section for a rotor in a turbine, sealing element for a turbine rotor equipped with rotor blades and rotor for a turbine
US7566201B2 (en) * 2007-01-30 2009-07-28 Siemens Energy, Inc. Turbine seal plate locking system
EP2873807A1 (en) * 2013-11-18 2015-05-20 Siemens Aktiengesellschaft Cover plate, rotor blade, wheel disc, bolt and gas turbine
EP2933436A1 (en) * 2014-04-15 2015-10-21 Siemens Aktiengesellschaft Wheel disc with at least one sealing sheet metal panel
EP2940249A1 (en) * 2014-04-29 2015-11-04 Siemens Aktiengesellschaft Wheel disc assembly and method for mounting a wheel disc assembly
EP2975218A1 (en) * 2014-07-17 2016-01-20 Siemens Aktiengesellschaft Wheel disc assembly
EP3015656A1 (en) * 2014-10-30 2016-05-04 Siemens Aktiengesellschaft Wheel disc assembly
EP3015655A1 (en) * 2014-10-30 2016-05-04 Siemens Aktiengesellschaft Wheel disc assembly with seal plates
EP3061916A1 (en) * 2015-02-24 2016-08-31 Siemens Aktiengesellschaft Rotor disc assembly and method for mounting a rotor disc assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

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

Similar Documents

Publication Publication Date Title
DE2952023C2 (en)
DE2854629C2 (en)
DE602004003840T2 (en) Device for holding an annular bearing plate on a radial side of a rotor
EP3090135B1 (en) Wheel disc assembly and method for mounting a wheel disc assembly
EP3129600B1 (en) Wheel disc assembly
EP2218873A1 (en) Rotor section for a rotor of a turbo machine, rotor blade for a turbo machine and blocking element
EP1922471A1 (en) Arrangement for axially securing rotating blades in a rotor and use
DE102010060284A1 (en) Fuse spacer assembly for an airfoil mounting system for insertion in the circumferential direction
EP2129871A1 (en) Arrangement for axially securing rotating blades in a rotor, and gas turbine having such an arrangement
DE1450970A1 (en) Lock washer open on one side
WO2009000802A2 (en) Guide vane for a gas turbine
DE1551200C3 (en) Runner for flow machines, especially for compressors for gas turbines jet engines
DE102011054116A1 (en) brush seal
EP3129599B1 (en) Wheel disc assembly
DE102016216286A1 (en) Segmented roller bearing cage and cage segment to form the same
EP3061916A1 (en) Rotor disc assembly and method for mounting a rotor disc assembly
DE10350946B4 (en) Turbine nozzle holding device on the horizontal connecting surface of the carrier
DE60204486T2 (en) Double scoop holder
DE2104511A1 (en) Holding device for blades
EP3109520B1 (en) Seal carrier, guide blade assembly and fluid flow engine
DE102014015947A1 (en) Cooling duct cover and piston provided with a cooling channel cover
EP1284339A1 (en) Annular cover plate system for gas turbine rotors
EP3230559B1 (en) Final module to lock a bladed ring, corresponding blade carrier, turbomachine and method for inserting a final module
EP3695100B1 (en) Rotor with sealing element and sealing ring
DE202007019002U1 (en) Blower wheel for a jet device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20161110

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LANGE, MARC

Inventor name: VEITSMAN, VYACHESLAV

Inventor name: HOELL, HARALD

Inventor name: SCHROEDER, PETER

Inventor name: KOLK, KARSTEN

Inventor name: KAMPKA, KEVIN

INTG Intention to grant announced

Effective date: 20171204

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015003952

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 990701

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180418

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180718

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180718

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180719

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180820

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015003952

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20190121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180709

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180731

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180709

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150709

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180418

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180818

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200720

Year of fee payment: 6

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502015003952

Country of ref document: DE

Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG, DE

Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 990701

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20220901 AND 20220907

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230721

Year of fee payment: 9

Ref country code: GB

Payment date: 20230725

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230726

Year of fee payment: 9