DE1022348B - Adjustment device for the guide vanes of flow machines - Google Patents
Adjustment device for the guide vanes of flow machinesInfo
- Publication number
- DE1022348B DE1022348B DEB36627A DEB0036627A DE1022348B DE 1022348 B DE1022348 B DE 1022348B DE B36627 A DEB36627 A DE B36627A DE B0036627 A DEB0036627 A DE B0036627A DE 1022348 B DE1022348 B DE 1022348B
- Authority
- DE
- Germany
- Prior art keywords
- guide vanes
- adjusting
- adjustment device
- adjustment
- elastic members
- 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
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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Verstellvorrichtung für die Leitschaufeln von Strömungsmaschinen Leitschaufelverstellvorrichtungen sind bekannt, bei denen die Verstellbewegung vom Betätigungsorgan über Verbindungsglieder und Gelenke auf die Leitschaufeln erfolgt, wobei durch unvermeidbares Spiel in den Gelenken der Verstellübertragungsleitung Schaufelschwingungen begünstigt werden, die während der Betriebszeit ein Ausschlagen an den Übertragungsstellen herbeiführen.Adjustment device for the guide vanes of turbomachines Guide vane adjustment devices are known in which the adjustment movement of the actuator via connecting links and joints on the guide vanes takes place, with unavoidable play in the Joints of the adjustment transmission line promote blade vibrations, which cause a deflection at the transfer points during the operating time.
Zur Vermeidung dieses Nachteiles wurde bereits vorgeschlagen, den die Übertragung der Verstellbewegung übermittelnden Verstellring aus elastischem Werkstoff herzustellen und den Eingriff des Schaufelgliedes im Verstellring spielfrei auszuführen.To avoid this disadvantage, it has already been proposed that the transmission of the adjustment movement transmitting adjusting ring made of elastic Produce material and the engagement of the blade member in the adjusting ring without play to execute.
Hiervon abweichend schlägt die Erfindung vor, in oder an den auf dem äußeren Tragring des Leitapparates beiderseits der Schaufeldrehzapfen gelagerten Verstellringen elastische Glieder vorzusehen, in denen die Schaufelverstellhebel mit kugelförmigen Enden eingreifen, Diese Glieder können dabei in geschlossenen Bohrungen der Verstellringe ruhen oder, wenn größere Verstellwege erforderlich werden, in offenen Schlitzen angeordnet sein.Notwithstanding this, the invention proposes in or on the outer support ring of the diffuser mounted on both sides of the blade pivot pin Adjustment rings provide elastic members in which the blade adjustment lever engage with spherical ends, these links can thereby be closed The bores of the adjustment rings rest or, if larger adjustment distances are required, be arranged in open slots.
Die elastische Übertragung der Verstellbewegung ergibt außer ihrer dämpfenden Wirkung den Vorteil, daß die Gelenkverbindung durch ihre Elastizität Bahnabweichungen der Verstellkinematik aufnehmen kann.The elastic transmission of the adjustment movement results in addition to their dampening effect the advantage that the articulated connection by its elasticity Can accommodate path deviations of the adjustment kinematics.
Die erfindungsgelnäße Ausführung erlaubt gegenüber dem älteren Vorschlag einen Einfluß auf die Verstellbewegung durch die Art der Befestigung der elastischen Glieder, deren Elastizität durch die Einspannung in gewissen Grenzen veränderlich gehalten wird. Darüber hinaus kann dieser elastischen Gelenkverbindung eine gewisse Vorspannung erteilt werden, die etwaige Abnutzungserscheinungen ausgleicht.The design according to the invention allows compared to the older proposal an influence on the adjustment movement by the type of attachment of the elastic Limbs whose elasticity can be changed within certain limits due to the restraint is held. In addition, this elastic joint connection can have a certain Preload can be applied to compensate for any signs of wear and tear.
Die Zeichnung zeigt drei Ausführungsbeispiele der Erfindung, in denen gleiche Teile mit gleichen Bezugszahlen gekennzeichnet sind. Es zeigt Fig. 1 einen Teilschnitt durch einen Leitapparat, Fig. 2 in perspektivischer Ansicht die Anordnung eine> elastischen Gliedes, Fig. 3 in perspektivischer Ansicht eine weitere AnordnUngsart der elastischen Glieder.The drawing shows three embodiments of the invention in which identical parts are identified by the same reference numerals. It shows Fig. 1 a Partial section through a diffuser, FIG. 2 shows the arrangement in a perspective view an> elastic member, FIG. 3 shows a perspective view of a further type of arrangement of the elastic links.
In der Fig. 1 ist eine Leitschaufel 1 gezeigt, die mit Zapfen 2 in einem zweiteiligen Innenring 3 und mit Zapfen 4 in einem Außenring 5 schwenkbar gelagert ist. Konzentrisch zu und drehbar auf dem Außenrings 5 sind beiderseits der Zapfen 4 Verstellringe 6 angeordnet. die in diesem Ausführungsbeispiel mit einer Anzahl axial angeordneter Bohrungen versehen sind, in die Büchsen 7 aus elastischem Werkstoff eingelassen sind. Die äußeren Zapfen 4 sind quer durchbohrt und mit Stiften 8 versehen, deren beiderseitige kugelförmige Enden 9 von den elastischen Büchsen mit Vorspannung umschlossen werden. Werden die beiden Verstellringe 6 durch eine geeignete Vorrichtung, wie sie beispielsweise durch 10 dargestellt ist, gegeneinander verdreht, so werden die Leitschaufeln 1 über die elastischen Glieder 7 und die Stifte 8 verstellt.In Fig. 1, a guide vane 1 is shown, which with pin 2 in a two-part inner ring 3 and pivotable with pin 4 in an outer ring 5 is stored. Concentric to and rotatable on the outer ring 5 are on both sides the pin 4 adjusting rings 6 are arranged. in this embodiment with a Number of axially arranged bores are provided in the sleeves 7 made of elastic Are embedded in the material. The outer pins 4 are pierced transversely and with pins 8 provided, the spherical ends 9 on both sides of the elastic sleeves be enclosed with bias. If the two adjusting rings 6 by a suitable device, such as is shown for example by 10, against each other rotated, the guide vanes 1 are rotated via the elastic members 7 and the pins 8 adjusted.
DieVerstellbewegungwird durch die Elastizität der fest eingespannten Büchsen 7 begrenzt. Soll der V erstellbereich vergrößert werden, so können, wie in Fig. 3 gezeigt, die elastischen Glieder 7 in Schlitzen 11 der Verstellringe 6 geführt werden.The adjustment movement is made possible by the elasticity of the firmly clamped Bushes 7 limited. If the area to be created is to be enlarged, how shown in FIG. 3, the elastic members 7 in slots 11 of the adjusting rings 6 be guided.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB36627A DE1022348B (en) | 1955-07-26 | 1955-07-26 | Adjustment device for the guide vanes of flow machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB36627A DE1022348B (en) | 1955-07-26 | 1955-07-26 | Adjustment device for the guide vanes of flow machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1022348B true DE1022348B (en) | 1958-01-09 |
Family
ID=6964960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB36627A Pending DE1022348B (en) | 1955-07-26 | 1955-07-26 | Adjustment device for the guide vanes of flow machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1022348B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136350B (en) * | 1959-08-11 | 1962-09-13 | Entwicklungsbau Pirna Veb | Adjusting device for guide vane rims of an axial flow machine |
US3376018A (en) * | 1966-01-10 | 1968-04-02 | Rolls Royce | Vane operating mechanism |
EP1207272A2 (en) * | 2000-11-17 | 2002-05-22 | General Electric Company | Replaceable variable stator vane for gas turbines |
FR2824593A1 (en) * | 2001-05-10 | 2002-11-15 | Snecma Moteurs | Stator blades pivot support installation comprises bringing together two rings comprising half of internal pivot bores and sliding snap ring into groove in junction between rings |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE954637C (en) * | 1954-11-06 | 1956-12-20 | Voith Gmbh J M | Device for adjusting the blades of flow machines, in particular blowers |
-
1955
- 1955-07-26 DE DEB36627A patent/DE1022348B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE954637C (en) * | 1954-11-06 | 1956-12-20 | Voith Gmbh J M | Device for adjusting the blades of flow machines, in particular blowers |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136350B (en) * | 1959-08-11 | 1962-09-13 | Entwicklungsbau Pirna Veb | Adjusting device for guide vane rims of an axial flow machine |
US3376018A (en) * | 1966-01-10 | 1968-04-02 | Rolls Royce | Vane operating mechanism |
EP1207272A2 (en) * | 2000-11-17 | 2002-05-22 | General Electric Company | Replaceable variable stator vane for gas turbines |
EP1207272A3 (en) * | 2000-11-17 | 2003-10-22 | General Electric Company | Replaceable variable stator vane for gas turbines |
FR2824593A1 (en) * | 2001-05-10 | 2002-11-15 | Snecma Moteurs | Stator blades pivot support installation comprises bringing together two rings comprising half of internal pivot bores and sliding snap ring into groove in junction between rings |
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