EP3015655A1 - Wheel disc assembly with seal plates - Google Patents
Wheel disc assembly with seal plates Download PDFInfo
- Publication number
- EP3015655A1 EP3015655A1 EP14191066.1A EP14191066A EP3015655A1 EP 3015655 A1 EP3015655 A1 EP 3015655A1 EP 14191066 A EP14191066 A EP 14191066A EP 3015655 A1 EP3015655 A1 EP 3015655A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel disc
- sealing plates
- bolts
- arrangement
- recesses
- 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.)
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
- F01D11/006—Sealing the gap between rotor blades or blades and rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/32—Locking, e.g. by final locking blades or keys
- F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/32—Locking, e.g. by final locking blades or keys
- F01D5/326—Locking of axial insertion type blades by other means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/37—Retaining components in desired mutual position by a press fit connection
Definitions
- the present invention relates to a wheel disc assembly comprising a wheel disc, a plurality of vane means secured along an outer periphery of the wheel disc, a plurality of sealing sheets slidably received circumferentially between the wheel disc and the vane means, and securing means formed to receive the sealing sheets secure against displacement in the circumferential direction.
- Wheel disc assemblies of the type mentioned are known in the art. They form components of rotors, such as gas turbines or the like. Normally, a plurality of sealing plates are slidably received in the circumferential direction between the wheel disc and the blade means. Thus, the sealing plates can be used for example in radially spaced-apart annular grooves, which are formed on the wheel disc on the one hand and on the blade means on the other. In order to ensure proper functioning of the sealing plates, it is necessary to secure the individual sealing plates against displacement in the circumferential direction, for which corresponding securing devices are used.
- Such a securing device can be formed, for example, by a screw extending through a through hole provided in the sealing plate and a threaded hole provided on the wheel disc, into which the screw is screwed in the intended mounted state.
- a problem of a safety device designed in this way is that the notch effect associated with the threaded hole provided in the wheel disc has a negative effect on the strength of the wheel disc and can cause corresponding problems.
- screws can often no longer be solved in case of doubt, what a costly boring the threaded connection pulls, causing the expensive wheel is damaged.
- the present invention provides a Radularnan extract of the aforementioned type, which is characterized in that as securing means bolts are provided which are fixed to the wheel disc and engage in recesses formed on the wheel disc facing surfaces of the sealing plates, wherein the bolts are clamped in unthreaded holes in the wheel disc. Due to the fact that the bolts of the safety devices according to the invention, in contrast to the prior art described above not bolted to the wheel but are held clamped to the wheel discs, it is prevented that the strength of the wheel disc is reduced by the notch effect of threads.
- the bore has a substantially hemispherical bore bottom. Accordingly, there is a transition radius between the bore and the bottom of the hole, which also prevents unnecessary weakening of the wheel disc.
- the bolts on their end facing the wheel disc spring leg, which engage in the associated bore. Thanks to this construction, the bolts can be easily and repeatedly assembled and disassembled.
- the spring legs are advantageously arranged opposite each other, whereby uniformly acting clamping forces are achieved.
- the bolts have at least their end face facing the wheel disc a radially outwardly projecting projection as an attachment for an associated sealing plate. In this way, a secure and proper positioning of the sealing plates is ensured while maintaining a defined distance between the wheel disc and the sealing plates.
- the at least one projection is advantageously formed annular, which is particularly advantageous in relation to the production of the bolt.
- the recesses formed on the sealing plates are formed as through holes. This is on the one hand from a production point of view advantageous. On the other hand, the bolts can be more easily inserted into the associated recesses, as they are visible through the through holes from the outside.
- the recesses formed on the sealing plates are designed as radially extending elongated holes in order to be able to compensate for thermal expansions during the intended use of the wheel disc arrangement.
- FIGS. 1 to 5 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 devices 3, which are fastened along an outer circumference of the wheel disc 2, and a plurality of sealing plates 4, which extend between the wheel disc 2 and the blade devices 3 and are accommodated in the circumferential direction U slidably. More specifically, the sealing plates 4 are inserted in annular grooves which are arranged spaced apart in the radial direction R, wherein the annular grooves are formed on the wheel disc 2 on the one hand and on the blade means 3 on the other hand.
- the wheel disc assembly 1 comprises a plurality of safety devices 5, in the present case a safety device 5 per sealing plate 4.
- Each safety device 5 has a bolt 6 which is fixed to the wheel disc 2 and in a recess. 7 engages, which is formed on the wheel disc 2 facing surface of each sealing plate 4.
- the bolts 6 are held by clamping in unthreaded holes 8 of the wheel disc 2, wherein each bore 8 has a substantially hemispherical bore base formed.
- the bolts 6 have at its end facing the wheel disc 2 two oppositely arranged spring leg 9, which rest in the intended mounted state under exercise of a clamping force on the wall of the bore 8, as in FIG. 2 is shown.
- the bolts 8 a radially outwardly projecting projection 10, which in the present case is annular and serves as a system for an associated sealing plate 4.
- the projection 10 acts as a spacer and defines a predetermined distance between the wheel disc 2 and the corresponding sealing plate 4.
- the formed on the sealing plates 4 recesses 7 are provided as through holes, more specifically as a continuous and radially extending slots so that the bolt. 6 a clearance remains in the radial direction R, in particular in the radial outward direction.
- the wheel disc assembly 1 is characterized in particular by the fact that the bolts 6 can be easily assembled and disassembled thanks to the spring legs 9. Another advantage is that the bore 8 is formed thread-free, so that the strength of the wheel disc 2 is not unnecessarily affected by notch effect. Also, the substantially hemispherical bore bottom is conducive to strength. Thanks to the projection 10 a defined position of the sealing plates 4 is ensured in the intended mounted state.
- the design of the recesses 7 as a radially extending and continuous slots that leave the bolt 6 in the radial direction a movement clearance, allows compensation of thermal expansion of the sealing plates 4 during normal operation of the Radusionnan angel first
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Die Erfindung betrifft eine Radscheibenanordnung (1) mit einer Radscheibe (2), mehreren Schaufeleinrichtungen (3), die entlang eines Außenumfangs der Radscheibe (2) befestigt sind, mehreren Dichtblechen (4), die zwischen der Radscheibe (2) und den Schaufeleinrichtungen (3) in Umfangsrichtung verschiebbar aufgenommen sind, und Sicherungseinrichtungen (5), die derart ausgebildet sind, dass sie die Dichtbleche (4) gegen eine Verschiebung in Umfangsrichtung (U) sichern, wobei als Sicherungseinrichtungen Bolzen (6) vorgesehen sind, die an der Radscheibe (2) befestigt sind und in Ausnehmungen (7) greifen, die an der Radscheibe (2) zugewandten Flächen der Dichtbleche (4) ausgebildet sind, wobei die Bolzen (6) klemmend in gewindefreien Bohrungen (8) der Radscheibe (2) gehalten sind.The invention relates to a wheel disc arrangement (1) having a wheel disc (2), a plurality of blade devices (3) which are fastened along an outer circumference of the wheel disc (2), a plurality of sealing plates (4) which are located between the wheel disc (2) and the blade mechanisms (3). 3) are slidably received in the circumferential direction, and securing means (5) which are designed such that they secure the sealing plates (4) against displacement in the circumferential direction (U), being provided as securing means bolts (6) on the wheel disc (2) are fastened and engage in recesses (7) which are formed on the wheel disc (2) facing surfaces of the sealing plates (4), wherein the bolts (6) are clamped in unthreaded bores (8) of the wheel disc (2) ,
Description
Die vorliegende Erfindung betrifft eine Radscheibenanordnung mit einer Radscheibe, mehreren Schaufeleinrichtungen, die entlang eines Außenumfangs der Radscheibe befestigt sind, mehreren Dichtblechen, die zwischen der Radscheibe und den Schaufeleinrichtungen in Umfangsrichtung verschiebbar aufgenommen sind, und Sicherungseinrichtungen, die derart ausgebildet sind, dass sie die Dichtbleche gegen eine Verschiebung in Umfangsrichtung sichern.The present invention relates to a wheel disc assembly comprising a wheel disc, a plurality of vane means secured along an outer periphery of the wheel disc, a plurality of sealing sheets slidably received circumferentially between the wheel disc and the vane means, and securing means formed to receive the sealing sheets secure against displacement in the circumferential direction.
Radscheibenanordnungen der eingangs genannten Art sind im Stand der Technik bekannt. Sie bilden Komponenten von Rotoren, wie beispielsweise Gasturbinen oder dergleichen. Normalerweise sind zwischen der Radscheibe und den Schaufeleinrichtungen mehrere Dichtbleche in Umfangsrichtung verschiebbar aufgenommen. So können die Dichtbleche beispielsweise in radial voneinander beabstandet angeordnete Ringnuten eingesetzt sein, die an der Radscheibe einerseits und an den Schaufeleinrichtungen andererseits ausgebildet sind. Um eine ordnungsgemäße Funktion der Dichtbleche zu gewährleisten, ist es erforderlich, die einzelnen Dichtbleche gegen eine Verschiebung in Umfangsrichtung zu sichern, wozu entsprechende Sicherungseinrichtungen verwendet werden. Eine solche Sicherungseinrichtung kann beispielsweise durch eine sich durch ein im Dichtblech vorgesehenes Durchgangsloch erstreckende Schraube und eine an der Radscheibe vorgesehene Gewindebohrung gebildet sein, in welche die Schraube im bestimmungsgemäß montierten Zustand geschraubt ist. Ein Problem einer derart ausgebildeten Sicherungseinrichtung besteht allerdings darin, dass sich die mit der in der Radscheibe vorgesehenen Gewindebohrung einhergehende Kerbwirkung negativ auf die Festigkeit der Radscheibe auswirken und entsprechend Probleme bereiten kann. Darüber hinaus lassen sich Schrauben im Zweifelsfall häufig nicht mehr lösen, was ein aufwändiges Aufbohren der Schraubverbindung nach sich zieht, wodurch die teure Radscheibe beschädigt wird.Wheel disc assemblies of the type mentioned are known in the art. They form components of rotors, such as gas turbines or the like. Normally, a plurality of sealing plates are slidably received in the circumferential direction between the wheel disc and the blade means. Thus, the sealing plates can be used for example in radially spaced-apart annular grooves, which are formed on the wheel disc on the one hand and on the blade means on the other. In order to ensure proper functioning of the sealing plates, it is necessary to secure the individual sealing plates against displacement in the circumferential direction, for which corresponding securing devices are used. Such a securing device can be formed, for example, by a screw extending through a through hole provided in the sealing plate and a threaded hole provided on the wheel disc, into which the screw is screwed in the intended mounted state. However, a problem of a safety device designed in this way is that the notch effect associated with the threaded hole provided in the wheel disc has a negative effect on the strength of the wheel disc and can cause corresponding problems. In addition, screws can often no longer be solved in case of doubt, what a costly boring the threaded connection pulls, causing the expensive wheel is damaged.
Ausgehend von diesem Stand der Technik ist es eine Aufgabe der vorliegenden Erfindung, eine Radscheibenanordnung der eingangs genannten Art mit alternativem Aufbau zu schaffen.Based on this prior art, it is an object of the present invention to provide a wheel disc assembly of the type mentioned above with an alternative structure.
Zur Lösung dieser Aufgabe schafft die vorliegende Erfindung eine Radscheibenanordnung der eingangs genannten Art, die dadurch gekennzeichnet ist, dass als Sicherungseinrichtungen Bolzen vorgesehen sind, die an der Radscheibe befestigt sind und in Ausnehmungen greifen, die an der Radscheibe zugewandten Flächen der Dichtbleche ausgebildet sind, wobei die Bolzen klemmend in gewindefreien Bohrungen der Radscheibe gehalten sind. Aufgrund der Tatsache, dass die Bolzen der erfindungsgemäßen Sicherungseinrichtungen im Gegensatz zum eingangs beschriebenen Stand der Technik nicht mit der Radscheibe verschraubt sondern klemmend an den Radscheiben gehalten sind, wird verhindert, dass die Festigkeit der Radscheibe durch die Kerbwirkung von Gewinden herabgesetzt wird.To achieve this object, the present invention provides a Radscheibenanordnung of the aforementioned type, which is characterized in that as securing means bolts are provided which are fixed to the wheel disc and engage in recesses formed on the wheel disc facing surfaces of the sealing plates, wherein the bolts are clamped in unthreaded holes in the wheel disc. Due to the fact that the bolts of the safety devices according to the invention, in contrast to the prior art described above not bolted to the wheel but are held clamped to the wheel discs, it is prevented that the strength of the wheel disc is reduced by the notch effect of threads.
Gemäß einer Ausgestaltung der vorliegenden Erfindung weist die Bohrung einen im Wesentlichen halbkugelförmig ausgebildeten Bohrungsgrund auf. Entsprechend ist zwischen Bohrung und Bohrungsgrund ein Übergangsradius vorhanden, was ebenfalls eine unnötige Schwächung der Radscheibe verhindert.According to one embodiment of the present invention, the bore has a substantially hemispherical bore bottom. Accordingly, there is a transition radius between the bore and the bottom of the hole, which also prevents unnecessary weakening of the wheel disc.
Bevorzugt weisen die Bolzen an ihrem der Radscheibe zugewandten Endbereich Federschenkel auf, die in die zugeordnete Bohrung greifen. Dank dieses Aufbaus lassen sich die Bolzen einfach und wiederholt montieren und demontieren.Preferably, the bolts on their end facing the wheel disc spring leg, which engage in the associated bore. Thanks to this construction, the bolts can be easily and repeatedly assembled and disassembled.
Die Federschenkel sind vorteilhaft einander gegenüber angeordnet, wodurch gleichmäßig wirkende Klemmkräfte erzielt werden.The spring legs are advantageously arranged opposite each other, whereby uniformly acting clamping forces are achieved.
Gemäß einer Ausgestaltung der vorliegenden Erfindung weisen die Bolzen an ihrem der Radscheibe zugewandten Endbereich zumindest einen radial auswärts vorstehenden Vorsprung als Anlage für ein zugeordnetes Dichtblech auf. Auf diese Weise wird eine sichere und ordnungsgemäße Positionierung der Dichtbleche unter Beibehaltung eines definierten Abstandes zwischen der Radscheibe und den Dichtblechen gewährleistet.According to one embodiment of the present invention, the bolts have at least their end face facing the wheel disc a radially outwardly projecting projection as an attachment for an associated sealing plate. In this way, a secure and proper positioning of the sealing plates is ensured while maintaining a defined distance between the wheel disc and the sealing plates.
Der zumindest eine Vorsprung ist vorteilhaft ringförmig ausgebildet, was insbesondere in Bezug auf die Fertigung des Bolzens von Vorteil ist.The at least one projection is advantageously formed annular, which is particularly advantageous in relation to the production of the bolt.
Gemäß einer Ausgestaltung der vorliegenden Erfindung sind die an den Dichtblechen ausgebildeten Ausnehmungen als Durchgangslöcher ausgebildet. Dies ist zum einen aus fertigungstechnischer Sicht von Vorteil. Zum anderen lassen sich die Bolzen einfacher in die zugeordneten Ausnehmungen einführen, da sie durch die Durchgangslöcher von außen sichtbar sind.According to one embodiment of the present invention, the recesses formed on the sealing plates are formed as through holes. This is on the one hand from a production point of view advantageous. On the other hand, the bolts can be more easily inserted into the associated recesses, as they are visible through the through holes from the outside.
Vorteilhaft sind die an den Dichtblechen ausgebildeten Ausnehmungen als sich radial erstreckende Langlöcher ausgebildet, um während des bestimmungsgemäßen Einsatzes der Radscheibenanordnung Wärmedehnungen kompensieren zu können.Advantageously, the recesses formed on the sealing plates are designed as radially extending elongated holes in order to be able to compensate for thermal expansions during the intended use of the wheel disc arrangement.
Weitere Merkmale und Vorteile der vorliegenden Erfindung werden anhand der nachfolgenden Beschreibung einer Radscheibe gemäß einer Ausführungsform der vorliegenden Erfindung unter Bezugnahme auf die beiliegende Zeichnung deutlich. Darin ist
- Figur 1
- eine schematische perspektivische Ansicht einer Radscheibenanordnung gemäß einer Ausführungsform der vorliegenden Erfindung;
Figur 2- eine schematische Schnittansicht, die eine Sicherungseinrichtung der in
Figur 1 dargestellten Radscheibenanordnung zeigt; Figur 3- eine schematische perspektivische Ansicht eines Dichtbleches der in
Figur 1 dargestellten Radscheibenanordnung; Figur 4- eine vergrößerte Ansicht einer in dem in
Figur 3 Figur 5- eine schematische perspektivische Ansicht eines Bolzens der in
Figur 2
- FIG. 1
- a schematic perspective view of a Radscheibenanordnung according to an embodiment of the present invention;
- FIG. 2
- a schematic sectional view showing a safety device of in
FIG. 1 shown wheel disc assembly shows; - FIG. 3
- a schematic perspective view of a sealing plate of in
FIG. 1 shown wheel disc assembly; - FIG. 4
- an enlarged view of one in the in
FIG. 3 illustrated sealing plate formed recess; and - FIG. 5
- a schematic perspective view of a bolt of in
FIG. 2 illustrated safety device.
Die
Um die Dichtbleche 4 gegen eine Verschiebung in Umfangsrichtung U zu sichern, umfasst die Radscheibenanordnung 1 mehrere Sicherungseinrichtungen 5, vorliegend eine Sicherungseinrichtung 5 pro Dichtblech 4. Jede Sicherungseinrichtung 5 weist einen Bolzen 6 auf, der an der Radscheibe 2 befestigt ist und in eine Ausnehmung 7 greift, die an der der Radscheibe 2 zugewandten Fläche eines jeden Dichtblechs 4 ausgebildet ist. Die Bolzen 6 sind klemmend in gewindefreien Bohrungen 8 der Radscheibe 2 gehalten, wobei jede Bohrung 8 einen im Wesentlichen halbkugelförmig ausgebildeten Bohrungsgrund aufweist. Die Bolzen 6 weisen an ihrem der Radscheibe 2 zugewandten Endbereich zwei einander gegenüberliegend angeordnete Federschenkel 9 auf, die im bestimmungsgemäß montierten Zustand unter Ausübung einer Klemmkraft an der Wandung der Bohrung 8 anliegen, wie es in
Die erfindungsgemäße Radscheibenanordnung 1 zeichnet sich insbesondere dadurch aus, dass die Bolzen 6 dank der Federschenkel 9 in einfacher Weise und wiederholt montiert sowie demontiert werden können. Ein weiterer Vorteil besteht darin, dass die Bohrung 8 gewindefrei ausgebildet ist, so dass die Festigkeit der Radscheibe 2 nicht unnötig durch Kerbwirkung beeinträchtigt wird. Auch ist der im Wesentlichen halbkugelförmig ausgebildete Bohrungsgrund der Festigkeit zuträglich. Dank des Vorsprungs 10 ist eine definierte Lage der Dichtbleche 4 im bestimmungsgemäß montierten Zustand gewährleistet. Die Ausbildung der Ausnehmungen 7 als sich radial erstreckende und durchgehende Langlöcher, die den Bolzen 6 in radialer Richtung ein Bewegungsspiel belassen, ermöglicht eine Kompensation von Wärmedehnungen der Dichtbleche 4 während des bestimmungsgemäßen Betriebes der Radscheibenanordnung 1.The wheel disc assembly 1 according to the invention is characterized in particular by the fact that the
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 (8)
mehreren Dichtblechen (4), die zwischen der Radscheibe (2) und den Schaufeleinrichtungen (3) in Umfangsrichtung verschiebbar aufgenommen sind, und
Sicherungseinrichtungen (5), die derart ausgebildet sind, dass sie die Dichtbleche (4) gegen eine Verschiebung in Umfangsrichtung (U) sichern,
dadurch gekennzeichnet, dass
als Sicherungseinrichtungen Bolzen (6) vorgesehen sind, die an der Radscheibe (2) befestigt sind und in Ausnehmungen (7) greifen, die an der Radscheibe (2) zugewandten Flächen der Dichtbleche (4) ausgebildet sind,
wobei die Bolzen (6) klemmend in gewindefreien Bohrungen (8) der Radscheibe (2) gehalten sind.A wheel disc assembly (1) comprising a wheel disc (2), a plurality of vane assemblies (3) mounted along an outer periphery of the wheel disc (2),
a plurality of sealing plates (4) which are slidably received between the wheel disc (2) and the blade means (3) in the circumferential direction, and
Securing devices (5) which are designed such that they secure the sealing plates (4) against displacement in the circumferential direction (U),
characterized in that
as securing means bolts (6) are provided which are fixed to the wheel disc (2) and engage in recesses (7) which are formed on the wheel disc (2) facing surfaces of the sealing plates (4),
wherein the bolts (6) are held by clamping in unthreaded bores (8) of the wheel disc (2).
dadurch gekennzeichnet, dass
die Bohrung (8) einen im Wesentlichen halbkugelförmig ausgebildeten Bohrungsgrund aufweist.Wheel disc arrangement (1) according to claim 1,
characterized in that
the bore (8) has a substantially hemispherical bore bottom.
dadurch gekennzeichnet, dass
die Bolzen (8) an ihrem der Radscheibe (2) zugewandten Endbereich Federschenkel (9) aufweisen, die in die zugeordneten Bohrungen (8) greifen.Wheel disc arrangement (1) according to one of the preceding claims,
characterized in that
the bolts (8) on their the wheel disc (2) facing end portion spring legs (9) which engage in the associated bores (8).
dadurch gekennzeichnet, dass
die Federschenkel (9) einander gegenüber angeordnet sind.Wheel disc arrangement (1) according to claim 3,
characterized in that
the spring legs (9) are arranged opposite to each other.
dadurch gekennzeichnet, dass
die Bolzen (8) an ihrem der Radscheibe (2) zugewandten Endbereich zumindest einen radial auswärts vorstehenden Vorsprung (10) als Anlage für ein zugeordnetes Dichtblech (4) aufweisen.Wheel disc arrangement (1) according to one of the preceding claims,
characterized in that
the bolts (8) on their end face facing the wheel disc (2) have at least one radially outwardly projecting projection (10) as an abutment for an associated sealing plate (4).
dadurch gekennzeichnet, dass
der zumindest eine Vorsprung (10) ringförmig ausgebildet ist.Wheel disc arrangement (1) according to claim 5,
characterized in that
the at least one projection (10) is annular.
dadurch gekennzeichnet, dass
die an den Dichtblechen (4) ausgebildeten Ausnehmungen (7) als Durchgangslöcher ausgebildet sind.Wheel disc arrangement (1) according to one of the preceding claims,
characterized in that
formed on the sealing plates (4) recesses (7) are formed as through holes.
dadurch gekennzeichnet, dass
die an den Dichtblechen (4) ausgebildeten Ausnehmungen (7) als sich radial erstreckende Langlöcher ausgebildet sind.Wheel disc arrangement (1) according to one of the preceding claims,
characterized in that
formed on the sealing plates (4) recesses (7) are formed as radially extending slots.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14191066.1A EP3015655A1 (en) | 2014-10-30 | 2014-10-30 | Wheel disc assembly with seal plates |
| PCT/EP2015/073548 WO2016066412A1 (en) | 2014-10-30 | 2015-10-12 | Wheel disk assembly having sealing plates |
| EP15778938.9A EP3172409B1 (en) | 2014-10-30 | 2015-10-12 | Wheel disk assembly having sealing plates |
| US15/519,733 US10337338B2 (en) | 2014-10-30 | 2015-10-12 | Wheel disk assembly having sealing plates |
| CN201590000975.2U CN208594970U (en) | 2014-10-30 | 2015-10-12 | Wheel assemblies with sealing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14191066.1A EP3015655A1 (en) | 2014-10-30 | 2014-10-30 | Wheel disc assembly with seal plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3015655A1 true EP3015655A1 (en) | 2016-05-04 |
Family
ID=51845311
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14191066.1A Withdrawn EP3015655A1 (en) | 2014-10-30 | 2014-10-30 | Wheel disc assembly with seal plates |
| EP15778938.9A Active EP3172409B1 (en) | 2014-10-30 | 2015-10-12 | Wheel disk assembly having sealing plates |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15778938.9A Active EP3172409B1 (en) | 2014-10-30 | 2015-10-12 | Wheel disk assembly having sealing plates |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10337338B2 (en) |
| EP (2) | EP3015655A1 (en) |
| CN (1) | CN208594970U (en) |
| WO (1) | WO2016066412A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2975219A1 (en) * | 2014-07-17 | 2016-01-20 | Siemens Aktiengesellschaft | Wheel disc assembly |
| DE102020200073A1 (en) * | 2020-01-07 | 2021-07-08 | Siemens Aktiengesellschaft | Guide vane ring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070351A (en) * | 1959-02-06 | 1962-12-25 | Gen Motors Corp | Blade retention |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8206119B2 (en) * | 2009-02-05 | 2012-06-26 | General Electric Company | Turbine coverplate systems |
| CN103748369B (en) * | 2011-04-27 | 2016-01-27 | 伊利诺斯工具制品有限公司 | Reusable press-in retainer |
-
2014
- 2014-10-30 EP EP14191066.1A patent/EP3015655A1/en not_active Withdrawn
-
2015
- 2015-10-12 WO PCT/EP2015/073548 patent/WO2016066412A1/en active Application Filing
- 2015-10-12 CN CN201590000975.2U patent/CN208594970U/en active Active
- 2015-10-12 EP EP15778938.9A patent/EP3172409B1/en active Active
- 2015-10-12 US US15/519,733 patent/US10337338B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070351A (en) * | 1959-02-06 | 1962-12-25 | Gen Motors Corp | Blade retention |
Also Published As
| Publication number | Publication date |
|---|---|
| CN208594970U (en) | 2019-03-12 |
| US20170241276A1 (en) | 2017-08-24 |
| EP3172409A1 (en) | 2017-05-31 |
| US10337338B2 (en) | 2019-07-02 |
| EP3172409B1 (en) | 2021-02-17 |
| WO2016066412A1 (en) | 2016-05-06 |
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