EP0846844B1 - Rotorzusammenbau mit kraftschlüssig und gleichzeitig form- bzw. materialschlüssig verbundenen Rotorscheiben - Google Patents
Rotorzusammenbau mit kraftschlüssig und gleichzeitig form- bzw. materialschlüssig verbundenen Rotorscheiben Download PDFInfo
- Publication number
- EP0846844B1 EP0846844B1 EP97810852A EP97810852A EP0846844B1 EP 0846844 B1 EP0846844 B1 EP 0846844B1 EP 97810852 A EP97810852 A EP 97810852A EP 97810852 A EP97810852 A EP 97810852A EP 0846844 B1 EP0846844 B1 EP 0846844B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- cone
- connection
- discs
- positive
- 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.)
- Expired - Lifetime
Links
- 230000014759 maintenance of location Effects 0.000 claims 3
- 239000000126 substance Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- F01D5/063—Welded rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
Definitions
- the invention relates to a rotor for turbomachinery, the individual Rotor disks that carry the turbine or compressor blades or Vane-free washers are arranged in a concentric, axially aligned manner Are located and connected by means of a pulling device, whereby the Rotor disks braced against each other form a compact unit, whereby Adjacent rotor disks in addition to the non-positive connection through the Traction device a further positive and / or material connection exhibit.
- a rotor for turbomachinery is made up of several rotor disks, whereby these are lined up axially and aligned concentrically.
- the Rotor disks can carry the blading or be intermediate washers and are tensioned together by, generally several, tie rods and thus form a compact unit.
- tie rods are high enough to ensure the friction between the individual rotor disks to ensure.
- In practice which is mainly due to thermal expansion due to the high operating temperatures is affected, but is not always with Given the security of frictional engagement. So shifts occur in the individual Rotor disks against each other, which lead to non-circular running of the system and can at least lead to a shutdown or partial destruction. This results in the plant coming to a standstill and thus the loss of production.
- the system damage comes to the loss of production these in particular lead to extremely expensive repairs, if any are repairable.
- GB 2 059 819 describes a method for producing an axial compressor rotor disclosed.
- This compressor rotor is made up of a number of rotor disks that to carry blading.
- the rotor disks are concentric with each other arranged and connected to one another during manufacture by means of screws. In In this state, the rotor disks are connected to each other in a material-locking manner, then the screws are removed so that the compressor rotor is clean material connection between the individual rotor disks having.
- US 5 414 929 discloses a method of manufacturing a turbine rotor, the Bladed rotor disks held together by a single tie rod become.
- US 3 850 546 relates to a turbomachine rotor, the rotor stages of which Paddle wheels exist. Radially protruding elements are provided for this, each of which has a blade radially outwards and one radially inwards Sector of the wheel hub. The cohesion of the individual paddle wheels with each existing intermediate washers between two adjacent paddle wheels also only with a single tie rod.
- the invention tries to avoid all these disadvantages. You have the task based on specifying a rotor for turbomachinery, which inherently so is trained or can be retrofitted so that an operational Misalignment, i.e. Rotation or displacement of rotor disks to one another is avoided.
- a rotor for turbomachinery the individual rotor disks of which which carry the turbine or compressor blades or bladeless ones Intermediate disks are arranged in a concentrically axially aligned arrangement are located and connected by a pulling device, whereby the Rotor disks braced against each other form a compact unit, whereby Adjacent rotor disks in addition to the non-positive connection through the Traction device a further positive and / or material connection have, designed such that the traction device from several, individual Tie rods exist, and that the further positive and / or material Connection between adjacent rotor disks on a larger one Diameter arranged as the screw pitch circle formed by the tie rods is.
- the individual rotor disks 1.i which can be designed as blade disks 1.i.1 or as intermediate disks 1.i.2, axially strung together and clamped together concentrically by tie rods 2.
- the rotor disks 1.i have defined contact surfaces 1.i.1.1 or 1.1.2.1, with which are supported on each other and which are supported by the tie rods 2 attack conditional frictional forces. These are due to the positive connection a rotation or displacement of the rotor disks against each other during operation prevent the system.
- a material connection 3 in the form of a weld seam is provided in addition to the non-positive connection of the rotor disks 1.i .
- This weld seam connects two Adjacent rotor disks 1.i together, thereby preventing them two rotor disks can perform relative movements against each other.
- This additional connection 3 produced by the weld seams is according to the invention outside the pitch circle of tie rods 2, i.e. on a larger diameter as the screw pitch circle 2.1 of the tie rod, arranged.
- FIG. 4 shows a rotor arrangement comparable to the embodiment in FIG. 1, however, in contrast to FIG. 1, tie rods inclined at an angle to the rotor axis (2) on.
- a conical, preferably a double-conical centering 4 is provided in addition to the non-positive connection of the rotor disks 1.i .
- This is conical centering 4 the tie rod 2 is arranged outside the screw pitch circle 2.1.
- the double cone preferably has a flank angle of 30 ° ... 60 °.
- the Cone-shaped centering 4 results in a form-fitting holder in a radial Direction and also increases the friction surfaces due to their contact surfaces between the rotor disks 1.i and thus the size of the transferable friction forces.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
- Fig. 1
- durch achsparallele Zuganker verspannte Rotorscheiben mit einer zusätzlichen Verbindung in Form einer Schweissnaht,
- Fig. 2
- ein Detail zu Fig. 1,
- Fig. 3
- ein weiteres Detail zu Fig. 1,
- Fig. 4
- durch die Rotorachse kreuzende Zuganker verspannte Rotorscheiben,
- Fig. 5
- durch Zuganker verspannte Rotorscheiben mit einer zusätzlichen Verbindung in Form einer doppelkonus förmingen Zentrierung.
- 1
- Rotor
- 1.i
- Rotorscheiben
- 1.i.1
- Schaufelscheiben
- 1.i.2
- Zwischenscheiben
- 1.i.1.1 bzw. 1.i.2,1
- Auflageflächen
- 2
- Zuganker
- 2.1
- Schraubenteilkreis
- 3
- materialschlüssige Verbindung [Schweissverbindung]
- 4
- konusförmige Zentrierung
- 4.i.1
- positiver Ringdoppelkonus
- 4.i.2
- negativer Ringdoppelkonus
Claims (5)
- Rotor für Turbomaschinen, dessen einzelne Rotorscheiben, welche die Turbinen- oder Verdichterschaufeln tragen oder schaufellose Zwischenscheiben sind, sich in konzentrisch axial aneinandergereihter Anordnung befinden und mittels einer Zugvorrichtung verbunden sind, wodurch die Rotorscheiben gegeneinander verspannt eine kompakte Einheit bilden, wobei benachbarte Rotorscheiben zusätzlich zur kraftschlüssigen Verbindung durch die Zugvorrichtung (2) eine weitere form- und/oder materialschlüssige Verbindung aufweisen,
dadurch gekennzeichnet, dass die Zugvorrichtung aus mehreren, einzelnen Zugankern besteht, und
dass die weitere form- und/oder materialschlüssige Verbindung zwischen jeweils aneinanderliegenden Rotorscheiben (1,i) auf einem größeren Durchmesser als dem durch die Zuganker (2) gebildeten Schraubenteilkreis (2.1) angeordnet ist. - Rotor nach Anspruch 1,
dadurch gekennzeichnet, dass die materialschlüssige Verbindung zwischen den Rotorscheiben (1.i) eine Schweissverbindung (3) ist. - Rotor nach Anspruch 2,
dadurch gekennzeichnet, dass die Schweissverbindung (3) eine durchgehende oder abschnittsweise Schweissnaht ist. - Rotor nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die zusätzliche Verbindung der Rotorscheiben (1,i) eine konusförmige Zentrierung (4) ist. - Rotor nach Anspruch 4,
dadurch gekennzeichnet, dass die konusförmige Zentrierung (4) als positiver oder negativer Ringkonus oder als Ringdoppelkonus (4.i.1 bzw. 4.i.2) auf jeder Rotorscheibe (1.i) ausgebildet ist, wobei je ein positiver Ringkonus oder Ringdoppelkonus mit einem negativen Ringkonus oder Ringdoppelkonus der benachbarten Rotorscheibe (1.i) in Wirkverbindung steht.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19650260 | 1996-12-04 | ||
| DE19650260A DE19650260A1 (de) | 1996-12-04 | 1996-12-04 | Rotor für Turbomaschinen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0846844A1 EP0846844A1 (de) | 1998-06-10 |
| EP0846844B1 true EP0846844B1 (de) | 2003-02-26 |
Family
ID=7813605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97810852A Expired - Lifetime EP0846844B1 (de) | 1996-12-04 | 1997-11-11 | Rotorzusammenbau mit kraftschlüssig und gleichzeitig form- bzw. materialschlüssig verbundenen Rotorscheiben |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0846844B1 (de) |
| CN (1) | CN1184201A (de) |
| DE (2) | DE19650260A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7192244B2 (en) | 2004-02-23 | 2007-03-20 | Grande Iii Salvatore F | Bladeless conical radial turbine and method |
| WO2008143932A3 (en) * | 2007-05-16 | 2009-01-29 | Ralf W Blackstone | Bladeless fluid propulsion pump |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1577492A1 (de) | 2004-03-16 | 2005-09-21 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Erkennen des Zustands des Rotors einer Strömungsmaschine |
| EP2025867A1 (de) * | 2007-08-10 | 2009-02-18 | Siemens Aktiengesellschaft | Rotor für eine axial durchströmbare Strömungsmaschine |
| US20090060735A1 (en) * | 2007-08-31 | 2009-03-05 | General Electric Company | Turbine rotor apparatus and system |
| EP2586969B1 (de) * | 2011-10-28 | 2020-03-25 | United Technologies Corporation | Speichenschaufel für einen Gasturbinenmotor |
| US8784062B2 (en) | 2011-10-28 | 2014-07-22 | United Technologies Corporation | Asymmetrically slotted rotor for a gas turbine engine |
| GB201201163D0 (en) * | 2012-01-24 | 2012-03-07 | Napier Turbochargers Ltd | Connection system |
| EP2708697A1 (de) * | 2012-09-17 | 2014-03-19 | Alstom Technology Ltd | Verfahren zur Verbindung zweier Rotorabschnitte sowie Turbinenrotor |
| EP3128128A1 (de) * | 2015-08-06 | 2017-02-08 | Siemens Aktiengesellschaft | Verschraubter rotor für eine strömungsmaschine, insbesondere dampfturbine |
| DE102020004151A1 (de) | 2020-07-09 | 2022-01-13 | MTU Aero Engines AG | Turbomaschinen-Rotor |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD29359A (de) * | ||||
| DE870595C (de) * | 1941-09-08 | 1953-03-19 | Daimler Benz Ag | Trommel fuer Turbomaschinen, insbesondere fuer Axialverdichter |
| BE469282A (de) * | 1945-11-20 | |||
| US2637521A (en) * | 1949-03-01 | 1953-05-05 | Elliott Co | Gas turbine rotor and method of welding rotor disks together |
| DE1551210A1 (de) * | 1966-06-18 | 1970-01-15 | Siemens Ag | Scheibenlaeufer fuer Turbinen,die zum Antrieb von Wechselstromgeneratoren dienen |
| US3625634A (en) * | 1969-12-10 | 1971-12-07 | Gen Motors Corp | Turbomachine rotor |
| US3610772A (en) * | 1970-05-04 | 1971-10-05 | Gen Motors Corp | Bladed rotor |
| US3617150A (en) * | 1970-06-01 | 1971-11-02 | Gen Motors Corp | Rotor drum |
| US3850546A (en) * | 1971-03-03 | 1974-11-26 | Gen Motors Corp | Turbomachine rotor |
| CH595011A5 (de) * | 1975-06-19 | 1978-01-31 | Bbc Brown Boveri & Cie | |
| GB2059819A (en) * | 1979-10-12 | 1981-04-29 | Gen Motors Corp | Manufacture of axial compressor rotor |
| DE4239710A1 (de) * | 1992-11-26 | 1994-06-01 | Abb Patent Gmbh | Läufer einer Turbine |
-
1996
- 1996-12-04 DE DE19650260A patent/DE19650260A1/de not_active Withdrawn
-
1997
- 1997-11-11 DE DE59709387T patent/DE59709387D1/de not_active Expired - Fee Related
- 1997-11-11 EP EP97810852A patent/EP0846844B1/de not_active Expired - Lifetime
- 1997-12-04 CN CN97125411A patent/CN1184201A/zh active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7192244B2 (en) | 2004-02-23 | 2007-03-20 | Grande Iii Salvatore F | Bladeless conical radial turbine and method |
| WO2008143932A3 (en) * | 2007-05-16 | 2009-01-29 | Ralf W Blackstone | Bladeless fluid propulsion pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1184201A (zh) | 1998-06-10 |
| DE19650260A1 (de) | 1998-06-10 |
| DE59709387D1 (de) | 2003-04-03 |
| EP0846844A1 (de) | 1998-06-10 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ABB ALSTOM POWER (SCHWEIZ) AG |
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