EP1584793A2 - Turbinenschaufelarretiervorrichtung - Google Patents
Turbinenschaufelarretiervorrichtung Download PDFInfo
- Publication number
- EP1584793A2 EP1584793A2 EP05006648A EP05006648A EP1584793A2 EP 1584793 A2 EP1584793 A2 EP 1584793A2 EP 05006648 A EP05006648 A EP 05006648A EP 05006648 A EP05006648 A EP 05006648A EP 1584793 A2 EP1584793 A2 EP 1584793A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- groove
- locking pin
- turbine
- blade
- 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.)
- Granted
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
- F01D5/32—Locking, e.g. by final locking blades or keys
- F01D5/326—Locking of axial insertion type blades by other means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
Definitions
- the invention relates to a turbine blade locking device for axial securing of a turbine blade on the turbine disk.
- cover plates, locking rings or locking plates or a combination used by these which deformed during assembly, for example must be bent.
- Another disadvantage is that the overall construction has a higher weight and that the production and the Assembly associated with not inconsiderable costs.
- Another disadvantage is that the functionality and reliability is not always guaranteed or that relatively complex control measures are required to the check correct installation.
- the invention is based on the object, a turbine blade locking device of the type mentioned above, which with a simple structure, simple cost-effective manufacturability and easy assembly a high level of reliability and safety.
- a locking groove is introduced, which the groove for inserting the blade root passes through and which itself extends in the radial direction in the plane of the turbine disk.
- a locking pin is inserted, which thus substantially in the circumferential direction of the turbine disk extends.
- the locking pin is conditional through the groove, displaceable in the radial direction.
- To the Shovel foot is at its bottom a notch or groove introduced, in which at least a part of the locking pin (in terms of its length or in terms of its diameter) is insertable.
- an elastic element which below the locking pin is arranged and this radially pretensions to the outside.
- the centrifugal forces cause a radially outward bias or movement of the Locking bolt, so that safely in the notch or Groove the bottom of the blade root is positioned. While the operation is thus a tailor - made positioning of the Blade foot relative to the turbine disk. This takes place the axial positioning in both axial directions. hereby The present invention differs from the prior art Technology, since there often an axial direction by stops, Noses or the like is blocked while the other axial direction by the mentioned additional locking elements (Sheets etc.) takes place.
- the locking groove according to the invention has a preferred manner a rectangular shape. Furthermore, it is advantageous if the Locking bolt provided with a cylindrical cross section is, since this then in a round cross-section of the notch of the blade root is inserted. For a secure load transfer To ensure it is beneficial when the end areas the locking bolt is a substantially rectangular Have cross-section or just milled.
- the elastic element according to the invention in the form of a spring be formed after the insertion of the blade root in a corresponding groove of the turbine disk under the Locking pin is pushed to this up to press.
- Fig. 1 shows a turbine blade 1, which in one piece is provided with a blade root 3. This is fir-tree-like profiled, as previously known from the prior art is.
- a transversely extending notch 9 which fits to a cylindrical Cross section of a locking pin 5 a may have a semicircular cross-section.
- Fig. 1 further shows an elastic element 5, which is formed in the form of a spring and serves to the locking pin 4 in the notch or groove 9 bring.
- FIG. 2 shows the associated area of a turbine disk 6. This has several profiled, in the axial direction extending grooves 10, which each of lateral Disc fingers 7 are formed. In the radial direction and in the plane of the turbine disk 6 is in each case a locking groove 8, in which the locking pin 4 can be inserted is as shown in Fig. 2. On the presentation of the elastic element 5 was in Fig. 2 for clarity half omitted.
- Fig. 3 shows a schematic partial sectional view in the mounted Status. It can be seen that the locking pin 4 with much of its cross section in the notch or groove 9 is received. Furthermore, it is shown that the blade root 3 in usually with at least one cooling channel 2 can be provided. The embodiment of the cooling channel 2 is not affected by the locking device according to the invention.
- Fig. 3 shows the radial bias of the Locking bolt 4 serving elastic element 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- Fig. 1
- eine vereinfachte, isometrische Ansicht einer erfindungsgemäßen Turbinenschaufel mit Schaufelfuß,
- Fig. 2
- eine vereinfachte, isometrische Teil-Ansicht einer Turbinenscheibe mit Arretierungsnut und zugeordnetem Arretierungsbolzen, und
- Fig. 3
- eine schematische Schnittansicht im montierten Zustand.
- 1
- Turbinenschaufel
- 2
- Kühlkanal
- 3
- Schaufelfuß
- 4
- Arretierungsbolzen
- 5
- Elastisches Element
- 6
- Turbinenscheibe
- 7
- Scheibenfinger
- 8
- Arretierungsnut
- 9
- Kerbe
- 10
- Axiale Nut am Scheibenkranz
Claims (5)
- Turbinenschaufelarretiervorrichtung zur axialen Sicherung einer Turbinenschaufel (1), welche in einer sich axial erstreckenden profilierten Nut (10) einer Turbinenscheibe (6) eingeschoben ist,
dadurch gekennzeichnet, dass die Turbinenscheibe (6) mit einer die Nut (10) durchgreifenden, sich radial in der Ebene der Turbinenscheibe (6) erstreckenden Arretierungsnut (8) versehen ist,
dass in der Arretierungsnut (8) ein Arretierungsbolzen (4) eingelegt ist,
dass der Schaufelfuß (3) an seiner Unterseite mit einer mit der Arretierungsnut (8) fluchtenden Kerbe (9) versehen ist, und
dass in radialer Richtung unterhalb des Arretierungsbolzens (4) ein diesen radial nach außen vorspannendes elastisches Element (5) angeordnet ist. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Arretierungsnut (8) eine rechteckige Form aufweist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass Arretierungsbolzen (4) mit einem zylindrischen Querschnitt versehen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Endbereiche des Arretierungsbolzens (4) einen im Wesentlichen rechteckigen Querschnitt aufweisen.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das elastische Element (5) in Form einer Feder ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004017193 | 2004-04-07 | ||
DE102004017193A DE102004017193A1 (de) | 2004-04-07 | 2004-04-07 | Turbinenschaufelarretiervorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1584793A2 true EP1584793A2 (de) | 2005-10-12 |
EP1584793A3 EP1584793A3 (de) | 2011-02-02 |
EP1584793B1 EP1584793B1 (de) | 2012-07-25 |
Family
ID=34895510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05006648A Not-in-force EP1584793B1 (de) | 2004-04-07 | 2005-03-24 | Turbinenschaufelarretiervorrichtung zur axialen Sicherung einer Turbinenschaufel |
Country Status (3)
Country | Link |
---|---|
US (1) | US7442011B2 (de) |
EP (1) | EP1584793B1 (de) |
DE (1) | DE102004017193A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102817640A (zh) * | 2011-06-09 | 2012-12-12 | 通用电气公司 | 涡轮机叶片锁定系统 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1860280A1 (de) * | 2006-04-07 | 2007-11-28 | Siemens Aktiengesellschaft | Verriegelungsvorrichtung einer Turbinenschaufel mit einem Sperrelement |
DE102006054154B4 (de) * | 2006-11-16 | 2014-03-13 | Man Diesel & Turbo Se | Abgasturbolader |
GB0914969D0 (en) * | 2009-08-28 | 2009-09-30 | Rolls Royce Plc | An aerofoil blade assembly |
US8523529B2 (en) * | 2009-11-11 | 2013-09-03 | General Electric Company | Locking spacer assembly for a circumferential entry airfoil attachment system |
US8784052B2 (en) * | 2010-05-10 | 2014-07-22 | Hamilton Sundstrand Corporation | Ceramic gas turbine shroud |
US20130017092A1 (en) * | 2011-07-11 | 2013-01-17 | General Electric Company | Rotor assembly for gas turbines |
US9051845B2 (en) | 2012-01-05 | 2015-06-09 | General Electric Company | System for axial retention of rotating segments of a turbine |
JP5538468B2 (ja) * | 2012-03-30 | 2014-07-02 | 株式会社日立製作所 | タービン動翼とタービンロータのピン結合部の加工方法及びタービン動翼 |
US9470092B2 (en) | 2013-01-02 | 2016-10-18 | General Electric Company | System and method for attaching a rotating blade in a turbine |
CN114458391A (zh) * | 2022-02-22 | 2022-05-10 | 中国联合重型燃气轮机技术有限公司 | 一种透平叶片锁紧组件 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2846183A (en) * | 1952-07-18 | 1958-08-05 | William C Morgan | Retaining devices for turbine blades |
US2912223A (en) * | 1955-03-17 | 1959-11-10 | Gen Electric | Turbine bucket vibration dampener and sealing assembly |
CH408056A (de) | 1962-11-23 | 1966-02-28 | Goerlitzer Maschinenbau Veb | Befestigung der Laufschaufeln von Kreiselmaschinen, insbesondere für trommelartige Verdichterläufer von Gasturbinen |
DE1159964B (de) * | 1959-12-18 | 1963-12-27 | Goerlitzer Maschb Veb | Befestigung der Laufschaufeln von Kreiselmaschinen |
CH572155A5 (de) * | 1974-05-27 | 1976-01-30 | Bbc Sulzer Turbomaschinen | |
FR2507679A1 (fr) * | 1981-06-12 | 1982-12-17 | Snecma | Dispositif de verrouillage d'une aube de rotor de turbomachine |
US4820127A (en) * | 1988-01-29 | 1989-04-11 | Westinghouse Electric Corp. | Blade support and blade assembly |
GB9223593D0 (en) * | 1992-11-11 | 1992-12-23 | Rolls Royce Plc | Gas turbine engine fan blade assembly |
US5720596A (en) * | 1997-01-03 | 1998-02-24 | Westinghouse Electric Corporation | Apparatus and method for locking blades into a rotor |
-
2004
- 2004-04-07 DE DE102004017193A patent/DE102004017193A1/de not_active Ceased
-
2005
- 2005-03-24 EP EP05006648A patent/EP1584793B1/de not_active Not-in-force
- 2005-04-07 US US11/100,404 patent/US7442011B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
None |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102817640A (zh) * | 2011-06-09 | 2012-12-12 | 通用电气公司 | 涡轮机叶片锁定系统 |
EP2532835A3 (de) * | 2011-06-09 | 2013-08-07 | General Electric Company | Sperrsystem für Turbomaschinenschaufeln |
US8764402B2 (en) | 2011-06-09 | 2014-07-01 | General Electric Company | Turbomachine blade locking system |
CN102817640B (zh) * | 2011-06-09 | 2016-02-24 | 通用电气公司 | 涡轮机叶片锁定系统 |
Also Published As
Publication number | Publication date |
---|---|
EP1584793B1 (de) | 2012-07-25 |
EP1584793A3 (de) | 2011-02-02 |
US7442011B2 (en) | 2008-10-28 |
US20050226729A1 (en) | 2005-10-13 |
DE102004017193A1 (de) | 2005-10-27 |
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