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DE1157631B - Blade binding in turbo machines - Google Patents

Blade binding in turbo machines

Info

Publication number
DE1157631B
DE1157631B DEG26876A DEG0026876A DE1157631B DE 1157631 B DE1157631 B DE 1157631B DE G26876 A DEG26876 A DE G26876A DE G0026876 A DEG0026876 A DE G0026876A DE 1157631 B DE1157631 B DE 1157631B
Authority
DE
Germany
Prior art keywords
blade
binding
wire
binding wire
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.)
Pending
Application number
DEG26876A
Other languages
German (de)
Inventor
Dr-Ing Werner Fister
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade 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 Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Priority to DEG26876A priority Critical patent/DE1157631B/en
Priority to GB1323960A priority patent/GB943023A/en
Publication of DE1157631B publication Critical patent/DE1157631B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • F01D5/22Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24Blade-to-blade connections, e.g. for damping vibrations using wire or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Earth Drilling (AREA)

Description

Schaufelbindung bei Turbomaschinen Die Erfindung betrifft eine Schaufelbindung bei Turbomaschinen mittels hohlen Bindedrahtes, der zwischen den Schaufeln an mindestens einer Stelle seines Profils über das Profil der Schaufelbohrung hinaus bleibend so verformt ist, daß er die Abstände der Schaufeln voneinander durch Formschluß innehält.Blade binding in turbo machines The invention relates to a blade binding in the case of turbo machines by means of a hollow binding wire that is attached between the blades at least one point of its profile remaining beyond the profile of the blade bore is deformed so that it the distances between the blades from each other by positive locking pauses.

Bei bekannten Bindungen dieser Art ist der Bindedraht zwischen den Schaufeln flachgedrückt. Zu dieser Art von Verformung muß das Werkzeug -eine Zange od. ä. - in jede einzelne Schaufellücke eingeführt werden, was bei der üblicherweise großen Zahl von Schaufeln je Schaufelkranz langwierig ist.In known bindings of this type, the binding wire is between the Shovels flattened. For this kind of deformation the tool - a pair of pliers - has to be used od. Ä. - Are introduced into each individual blade gap, which is usually the case large number of blades per blade ring is tedious.

Die Erfindung beruht auf dem Gedanken, die Verformung nicht mechanisch von außen her, sondern von innen her hydraulisch oder pneumatisch zu bewirken, damit der Draht auf seiner ganzen Länge, also an allen Schaufeln, die er bindet, gleichzeitig verformt wird. Sie besteht also darin, daß der hohle Bindedraht von seinem Innern her durch ein flüssiges oder gasförmiges Druckmittel aufgeweitet ist.The invention is based on the idea that the deformation is not mechanical from the outside, but hydraulically or pneumatically from the inside, so the wire along its entire length, i.e. on all the shovels that it binds, at the same time is deformed. So it consists in the hollow binding wire from inside is expanded forth by a liquid or gaseous pressure medium.

Die Erfindung erfordert natürlich, daß der hohle Bindedraht - er wird um der Einfachheit im folgenden Binderohr genannt - während der Aufweitung auch an seinen Enden geschlossen ist. Nach durchgeführter Aufweitung kann das Druckmittel entweder im Rohr verbleiben oder aus ihm entfernt werden.The invention, of course, requires that the hollow binding wire - it will for the sake of simplicity in the following called tie tube - during the expansion also is closed at its ends. After the expansion has been carried out, the pressure medium either remain in the pipe or be removed from it.

Wenn man ein flüssiges Druckmittel benutzt, so empfiehlt es sich, ein solches zu wählen, das nur bei hoher Temperatur flüssig wird, aber bei Betriebstemperatur fest ist. Das ergibt höhere Steifigkeit des Binders und gestattet dünnere Rohrwandstärke des Binders, also niedrigeren Aufweitungsdruck.When using a liquid pressure medium, it is advisable to to choose one that becomes liquid only at high temperature, but at operating temperature is firm. This results in greater rigidity of the tie and allows thinner pipe wall thicknesses of the binder, i.e. lower expansion pressure.

Ferner kann die Aufweitung des Binderohres im Sinne der Erfindung auch durch eine Sprengstoffladung bewirkt werden. Schließlich kann die Wanddicke des Binderohres an den Stellen des zu erwartenden Verschleißes stärker ausgeführt sein.Furthermore, the widening of the tie pipe in the sense of the invention can also be caused by a charge of explosives. Finally, the wall thickness can of the tie pipe at the points of the expected wear and tear be.

Die Zeichnung zeigt in Fig. 1 die Ansicht, in Fig. 2 die Draufsicht einer erfindungsgemäß hergestellten Schaufelbindung und in Fig. 3 eine Teilansicht einer solchen Bindung mit einem Rohr ungleicher Wandstärke. Darin bedeuten 1 die Schaufeln, 2 das Binderohr und 3 ein Rohr mit ungleicher Wandstärke.The drawing shows the view in FIG. 1 and the plan view in FIG. 2 a blade connection produced according to the invention and in FIG. 3 a partial view such a bond with a tube of unequal wall thickness. Here 1 mean the Shovels, 2 the tie pipe and 3 a pipe with unequal wall thickness.

Claims (4)

PATENTANSPRÜCHE: 1. Schaufelbindung bei Turbomaschinen mittels hohlen Bindedrahtes, der zwischen den Schaufeln an mindestens einer Stelle seines Profils über das Profil der Schaufelbohrung hinaus bleibend so verformt ist, daß er die Abstände der Schaufeln voneinander durch Formschluß innehält, dadurch gekennzeichnet, daß der Bindedraht durch ein flüssiges oder gasförmiges Druckmittel von innen her aufgeweitet ist. PATENT CLAIMS: 1. Blade connection in turbo machines by means of hollow Binding wire between the blades at at least one point on its profile is permanently deformed beyond the profile of the blade bore so that he the Maintains the spacing of the blades from one another by means of a form fit, characterized in that that the binding wire by a liquid or gaseous pressure medium from the inside is widened. 2. Schaufelbindung nach Anspruch 1, dadurch gekennzeichnet, daß das Druckmittel in den Bindedraht flüssig eingebracht und darin erstarrt ist und bei Betriebstemperatur starr bleibt. 2. blade binding according to claim 1, characterized in that the pressure medium is liquid introduced into the binding wire and solidified therein and remains rigid at operating temperature. 3. Verfahren zur Aufweitung des hohlen Bindedrahtes einer Schaufelbindung nach Anspruch 1, dadurch gekennzeichnet, daß die Aufweitung durch eine Sprengstoffladung bewirkt wird. 3. Method of expanding the hollow binding wire a shovel connection according to claim 1, characterized in that the widening caused by an explosive charge. 4. Schaufelbindung nach Anspruch 1, dadurch gekennzeichnet, daß die Wanddicke des Drahtes an den Stellen zu erwartenden Verschleißes stärker ausgeführt ist (Fig. 3). In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 966 503; britische Patentschrift Nr. 381873; USA.-Patentschriften Nr. 919 853, 1953 089, 2771240'. 4. blade binding according to claim 1, characterized in that the wall thickness of the wire is made stronger at the points of expected wear (Fig. 3). Documents considered: German Patent No. 966 503; British Patent No. 381873; U.S. Patent Nos. 919,853, 1953 089, 2771240 '.
DEG26876A 1959-04-18 1959-04-18 Blade binding in turbo machines Pending DE1157631B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEG26876A DE1157631B (en) 1959-04-18 1959-04-18 Blade binding in turbo machines
GB1323960A GB943023A (en) 1959-04-18 1960-04-13 Improvements in or relating to blade arrangements in turbines and compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG26876A DE1157631B (en) 1959-04-18 1959-04-18 Blade binding in turbo machines

Publications (1)

Publication Number Publication Date
DE1157631B true DE1157631B (en) 1963-11-21

Family

ID=7123061

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG26876A Pending DE1157631B (en) 1959-04-18 1959-04-18 Blade binding in turbo machines

Country Status (2)

Country Link
DE (1) DE1157631B (en)
GB (1) GB943023A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH622313A5 (en) * 1977-09-14 1981-03-31 Bbc Brown Boveri & Cie
DE3810537A1 (en) * 1988-03-28 1989-10-19 Semm Tec Computerentwicklung V VIBRATION DAMPING FOR AXIAL BLADES
GB9609721D0 (en) * 1996-05-09 1996-07-10 Rolls Royce Plc Vibration damping
US5820348A (en) * 1996-09-17 1998-10-13 Fricke; J. Robert Damping system for vibrating members
IT201900013854A1 (en) 2019-08-02 2021-02-02 Ge Avio Srl TURBINE MOTOR WITH SNAP-IN GASKETS.
PL431184A1 (en) 2019-09-17 2021-03-22 General Electric Company Polska Spółka Z Ograniczoną Odpowiedzialnością Turboshaft engine set

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919853A (en) * 1907-10-12 1909-04-27 Westinghouse Machine Co Elastic-fluid turbine.
GB381873A (en) * 1932-04-22 1932-10-13 British Thomson Houston Co Ltd Improvements in or relating to methods of stiffening turbine blades by means of lacing
US1953089A (en) * 1931-05-14 1934-04-03 Lisle F Small Turbine blade lacing and method of making the same
US2771240A (en) * 1952-08-27 1956-11-20 Peter J Gurin Automatic dynamic balancer
DE966503C (en) * 1953-12-12 1957-08-14 Siemens Ag Blade connection for steam or gas turbines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919853A (en) * 1907-10-12 1909-04-27 Westinghouse Machine Co Elastic-fluid turbine.
US1953089A (en) * 1931-05-14 1934-04-03 Lisle F Small Turbine blade lacing and method of making the same
GB381873A (en) * 1932-04-22 1932-10-13 British Thomson Houston Co Ltd Improvements in or relating to methods of stiffening turbine blades by means of lacing
US2771240A (en) * 1952-08-27 1956-11-20 Peter J Gurin Automatic dynamic balancer
DE966503C (en) * 1953-12-12 1957-08-14 Siemens Ag Blade connection for steam or gas turbines

Also Published As

Publication number Publication date
GB943023A (en) 1963-11-27

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