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DE550328C - Method for fastening hollow blades in the wheel rim of a steam or gas turbine - Google Patents

Method for fastening hollow blades in the wheel rim of a steam or gas turbine

Info

Publication number
DE550328C
DE550328C DENDAT550328D DE550328DD DE550328C DE 550328 C DE550328 C DE 550328C DE NDAT550328 D DENDAT550328 D DE NDAT550328D DE 550328D D DE550328D D DE 550328DD DE 550328 C DE550328 C DE 550328C
Authority
DE
Germany
Prior art keywords
steam
gas turbine
wheel rim
wedge
hollow blades
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
Application number
DENDAT550328D
Other languages
German (de)
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 Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens Corp
Publication date
Application granted granted Critical
Publication of DE550328C publication Critical patent/DE550328C/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

Es ist vorgeschlagen worden, Schaufeln für Dampf- oder Gasturbinen in der Weise herzustellen, daß sie aus einem Rohr gepreßt -oder Blechstreifen gebogen und zu einem. Hohlkörper zusammengefügt werden. Infolge der verhältnismäßig geringen Wandstärke derartiger Schaufehl bereitet es Schwierigkeiten, sie im Schaufelträger zu halten. Durch die Anordnung gemäß der Erfindung soll eine einfache und billige Befestigung der Hohlschaufeln ermöglicht werden, und zwar für axial in das Rad eingesetzte Schaufeln. Zu diesem Zweck besteht die Erfindung darin, daß das Schaufelfußende aufgeweitet, in die Erweiterung ein keilförmiges Formstück eingesetzt und der auf diese Weise geschaffene Schaufelfuß nach Art axialbeaufschlagter Schaufeln formschlüssig in eine Nut im Schaufelträger eingeschoben wird.It has been proposed to manufacture blades for steam or gas turbines in such a way that that they are pressed out of a pipe or bent sheet metal strips into one. Hollow bodies are joined together. As a result of the relatively small wall thickness of such Schaufehl makes it difficult to hold them in the blade carrier. Through the Arrangement according to the invention is intended to be a simple and inexpensive attachment of the hollow blades be made possible, namely for blades axially inserted into the wheel. To this end, the invention consists in that the blade root widened, inserted into the extension a wedge-shaped fitting and the blade root created in this way in the manner of axially loaded blades in a form-fitting manner in a groove in the blade carrier is inserted.

Einige Ausführungsbeispiele der Erfindung sind in den Abb. 1 und 2 dargestellt. Die Hohlschaufel, die aus den beiden Wänden 1 und 2 gebildet ist, ist an ihrem unteren Ende aufgeweitet und im Falle der Abb. 1 auch noch bei 3 und 4 angestaucht, so daß eine keilförmige Verdickung 'entsteht. In die Erweiterung ist ein Keilstück 5 eingeschoben, das durch einen Niet 6 gehalten wird. Die Verdiclcung durch Anstauchen ist nicht unbedingt erforderlich, sondern ist nur in manchen Fällen zweckmäßig. Durch das eingefügte Keilstück wird ein fester Schaufelfuß geschaffen. Dieser wird dann in eine entsprechend geformte Nut 7 des Schaufelträgers eingeschoben. Some embodiments of the invention are shown in Figs. the Hollow blade, which is formed from the two walls 1 and 2, is at its lower end expanded and in the case of Fig. 1 also upset at 3 and 4, so that a wedge-shaped thickening 'arises. A wedge 5 is inserted into the extension, which is held by a rivet 6. The thickening by upsetting is not necessary required, but is only useful in some cases. Through the inserted Wedge piece creates a firm blade root. This is then converted into a corresponding Shaped groove 7 of the blade carrier inserted.

Bei der Bauweise nach der Abb. 2 setzt sich das Keilstück aus mehreren Teilen zusammen. Die beiden Schaufelhälften 8 und 9 sind bei 10 und 11 abgesetzt. In die so entstandene Öffnung ist ein Formstück 12 eingefügt. Zur Herstellung der Keilform werden außen Formstücke 13 und 14 angesetzt, so daß ein Fußquerschnitt entsteht, der dem nach der Abb. 1 ähnelt.In the construction according to Fig. 2, the wedge is composed of several parts. The two blade halves 8 and 9 are at 10 and 11 discontinued. A shaped piece 12 is inserted into the opening that is created in this way. To the Manufacture of the wedge shape, fittings 13 and 14 are attached to the outside, so that a foot cross-section which is similar to that of Fig. 1.

Claims (3)

PatentANSPRücue:Patent claim: i„. Verfahren zur Befestigung von Hohlschaufeln im Radkranz einer Dampf- oder Gasturbine, dadurch gekennzeichnet, daß das Schaufelfußende erweitert, in die Er-Weiterung ein keilförmiges Formstück eingesetzt und der auf diese Weise geschaffene Schaufelfuß nach Art axial beaufschlagter Schaufehl formschlüssig in eine Nut im Schaufelträger eingeschoben wird.i ". Method of fastening hollow blades in the wheel rim of a steam or gas turbine, characterized in that the blade root expands into the expansion a wedge-shaped fitting is used and the blade root created in this way is acted upon axially in the manner of Schaufehl is positively inserted into a groove in the blade carrier. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Formstück vor dem Einschieben der Schaufel in die Nut durch Befestigungsmittel (6) mit der Schaufel verbunden wird.2. The method according to claim 1, characterized in that the shaped piece before after the shovel is pushed into the groove, it is connected to the shovel by fastening means (6). 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das keilförmige Formstück aus mehreren Einzelteilen zusammengesetzt ist (Abb. 2).3. The method according to claim 1, characterized in that the wedge-shaped fitting is composed of several individual parts (Fig. 2). '■') Von dem Patent sucher ist als der Erfinder angegeben worden:'■') The patent seeker stated as the inventor: Dipl.-Ing. Leonhard Reichert in Darmstadt.Dipl.-Ing. Leonhard Reichert in Darmstadt.
DENDAT550328D Method for fastening hollow blades in the wheel rim of a steam or gas turbine Expired DE550328C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE550328T

Publications (1)

Publication Number Publication Date
DE550328C true DE550328C (en) 1932-05-11

Family

ID=6562631

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT550328D Expired DE550328C (en) Method for fastening hollow blades in the wheel rim of a steam or gas turbine

Country Status (1)

Country Link
DE (1) DE550328C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658718A (en) * 1944-12-22 1953-11-10 Power Jets Res & Dev Ltd Manufacture and attachment of turbine and like blading
DE767990C (en) * 1940-10-16 1955-05-05 Messerschmitt Boelkow Blohm Axially loaded hollow blade for centrifugal machines
DE940226C (en) * 1943-11-06 1956-04-12 Ernst Heinkel Ag Hollow blade for axially flowed turbines
DE944645C (en) * 1952-08-08 1956-06-21 Max Adolf Mueller Dipl Ing Rotary rotor for rotary feeders for gas turbines and jet engines
US2762114A (en) * 1951-08-28 1956-09-11 Gen Motors Corp Method of making sheet metal turbine bucket
DE952468C (en) * 1954-02-24 1956-11-15 Armstrong Sideley Motors Ltd Compressor blade, especially for gas turbine engines
DE1016503B (en) * 1955-02-26 1957-09-26 Armstrong Siddeley Motors Ltd Internally cooled gas turbine blade
DE1016982B (en) * 1953-07-06 1957-10-03 Power Jets Res & Dev Ltd Runner with cooling device for flow machines operated with gaseous equipment, in particular gas turbines
DE968525C (en) * 1952-09-12 1958-02-27 Napier & Son Ltd Centrifugal machine hollow blade
US2828940A (en) * 1953-12-30 1958-04-01 United Aircraft Corp Cooled turbine blade
FR2608674A1 (en) * 1986-12-17 1988-06-24 Snecma CERAMIC BLADE TURBINE WHEEL

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767990C (en) * 1940-10-16 1955-05-05 Messerschmitt Boelkow Blohm Axially loaded hollow blade for centrifugal machines
DE940226C (en) * 1943-11-06 1956-04-12 Ernst Heinkel Ag Hollow blade for axially flowed turbines
US2658718A (en) * 1944-12-22 1953-11-10 Power Jets Res & Dev Ltd Manufacture and attachment of turbine and like blading
US2762114A (en) * 1951-08-28 1956-09-11 Gen Motors Corp Method of making sheet metal turbine bucket
DE944645C (en) * 1952-08-08 1956-06-21 Max Adolf Mueller Dipl Ing Rotary rotor for rotary feeders for gas turbines and jet engines
DE968525C (en) * 1952-09-12 1958-02-27 Napier & Son Ltd Centrifugal machine hollow blade
DE1016982B (en) * 1953-07-06 1957-10-03 Power Jets Res & Dev Ltd Runner with cooling device for flow machines operated with gaseous equipment, in particular gas turbines
US2828940A (en) * 1953-12-30 1958-04-01 United Aircraft Corp Cooled turbine blade
DE952468C (en) * 1954-02-24 1956-11-15 Armstrong Sideley Motors Ltd Compressor blade, especially for gas turbine engines
DE1016503B (en) * 1955-02-26 1957-09-26 Armstrong Siddeley Motors Ltd Internally cooled gas turbine blade
FR2608674A1 (en) * 1986-12-17 1988-06-24 Snecma CERAMIC BLADE TURBINE WHEEL
EP0275726A1 (en) * 1986-12-17 1988-07-27 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Turbine wheel with ceramic blades
US4802824A (en) * 1986-12-17 1989-02-07 Societe Nationale D'etude Et Moteurs D'aviation "S.N.E.C.M.A." Turbine rotor

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