DE1907241U - DAMPING DEVICE FOR WHEEL BLADES OF ROTARY MACHINES. - Google Patents
DAMPING DEVICE FOR WHEEL BLADES OF ROTARY MACHINES.Info
- Publication number
- DE1907241U DE1907241U DEK40981U DEK0040981U DE1907241U DE 1907241 U DE1907241 U DE 1907241U DE K40981 U DEK40981 U DE K40981U DE K0040981 U DEK0040981 U DE K0040981U DE 1907241 U DE1907241 U DE 1907241U
- Authority
- DE
- Germany
- Prior art keywords
- blades
- wire
- bores
- damping
- impeller
- 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
Links
- 238000013016 damping Methods 0.000 title claims description 6
- 241000323776 Elmas Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
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
- F01D5/12—Blades
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
-
- 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
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/16—Form or construction for counteracting blade vibration
-
- 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
- F01D5/12—Blades
- F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
P.A.769 717*-2.11.ΒίιP.A. 769 717 * -2.11.Βίι
KLDCKNER. Köln, den 30. 10.- 1964 KLDCKNER. Cologne, October 30th - 1964
HUMBOLDT-DEUTZAG. TP Moe/Si D 62/26 Gm HUMBOLDT-DEUTZAG. TP Moe / Si D 62/26 Gm
KÖLNCOLOGNE
Dämpfungseinrichtung für laufradschaufeln von Ere is elmas chinenDamping device for impeller blades from Ere is elmas china
Die Neuerung betrifft eine Einrichtung zur Dämpfung der Schwingungen der Laufradschaufein von radial durchströmten Kreis elmas chinen.The innovation relates to a device for damping the vibrations of the impeller blades with radial flow District elmas chinen.
Bei axial durchströmten Kreiselmaschinen hat man zur Dämpfung der Ausschläge von zu Schwingungen angeregten Laufschaufeln durch Bohrungen in letztere Drähte eingezogen, deren Wirkung darauf beruht, daß sie sich während des Betriebes unter der Einwirkung der Fliehkraft an die Wand der Bohrungen anlegen und die Bewegungen der Schaufeln bremsen. Wichtig ist es hierbei im Sinne der Erzielung einer möglichst großen Eeibungsarbeit offenbar, daß die Drähte in ihren Bohrungen während des Betriebes möglichst satt zur Anlage kommen. Außerdem sollte die Unterbringung solcher Drähte, insbesondere was die Herstellung der Bohrungen angeht, keine allzugroßen Schwierigkeiten bieten. Aufgabe der Neuerung ist es, auch bei Laufrädern von radial durchströmten Kreiselmaschinen unter möglichs weitgehender Erfüllung dieser vorgenannten Bedingungen solche Dämpfungsdrähte zu verwenden, eine Aufgabe, die neuerungsgemäß dadurch gelöst ist, daß die Bohrungen zur Aufnahme des Drahtringes so nahe an den freien Sehaufelenden angebracht sind und. so geneigt zu den Schaufelflächen verlaufen, daß sie leicht am Laufrad hergestellt werden können und daß der einge-In the case of centrifugal machines with axial flow, one has to dampen the deflections of moving blades excited to vibrate drawn through holes in the latter wires, the effect of which is based on the fact that they are during operation under the Apply centrifugal force to the wall of the bores and brake the movement of the blades. It is important here in the sense of achieving the greatest possible friction work, apparently that the wires in their holes during the Come to the plant as full as possible. In addition, should the placement of such wires, especially what the manufacture as far as drilling is concerned, do not present any great difficulties. It is the task of the innovation, also with impellers of centrifugal machines with radial flow under possible To a large extent fulfillment of these aforementioned conditions to use such damping wires, a task that according to the innovation is achieved in that the bores for receiving the wire ring are attached so close to the free ends of the blade are and. run so inclined to the blade surfaces that they can easily be made on the impeller and that the
KLÖCKNER. _ 2 - 30. 10. 1964 KLÖCKNER. _ 2 - October 30, 1964
HUMBOLDT-DEUTZ AG. D 62/26 Gm HUMBOLDT-DEUTZ AG. D 62/26 Gm
KÖLNCOLOGNE
zogene Draht vor und hinter jeder Bohrung eine aus der Bohrungsachse heraus in die allgemeine Umfangsrichtung überleitende Kröpfung aufweist.wire pulled one out of the axis of the hole in front of and behind each hole out in the general circumferential direction Has crank.
Bei Befolgung dieser Lehre "bietet die Herstellung der Bohrungen, auch nachträglich, keine Schwierigkeiten. Die Drähte selbst kommen dadurch, daß sie im Bereich der Bohrungen in deren Achsrichtung verlaufen, mit Sicherheit während des Betriebes satt zur .Anlage und sind zudem durch die Kröpfungen beiderseits der Bohrungen gegen zu starke, da überflüssige und unerwünschte Verschiebungen in Umfanfsrichtung des Rades gesichert.If this teaching is followed, "the production of the bores, even afterwards, no difficulties. The wires themselves come from the fact that they are in the area of the bores in their axial direction run, certainly full of the system during operation and are also due to the cranks on both sides the bores are secured against excessive, unnecessary and undesirable displacements in the circumferential direction of the wheel.
In der Zeichnung ist eine Ausfuhrungsform der Neuerung beispielsweise dargestellt.In the drawing, an embodiment of the innovation is for example shown.
Abb. 1 zeigt das radial von außen nach innen durchströmte Laufrad einer Strömungsmaschine mit axialem Austritt des Mediums in Draufsicht auf die Abströmseite.Fig. 1 shows the impeller of a turbomachine through which flow flows radially from the outside to the inside with an axial outlet of the medium in plan view of the downstream side.
Abb. 2 zeigt ein solches Rad nach Abb. 1 teilweise und etwas vergrößert im abgewickelten Zylinderschnitt am Radius r.Fig. 2 shows such a wheel according to Fig. 1 partially and somewhat enlarged in the developed cylinder section at the radius r.
Bei dem dargestellten Laufrad gehen die Schaufeln 1 innen einstückig in die Laufradnabe 2 und über ihre gesamte radiale Erstreckung einstückig in eine Begrenzungsscheibe 3 über. Abströmseitig stehen die Schaufeln 1 frei und and am Radius rIn the illustrated impeller, the S c blades 1 go in one piece on the inside into the impeller hub 2 and in one piece over their entire radial extent into a limiting disk 3. On the downstream side, the blades 1 are free and at the radius r
O 11.62 hü) O 11.62 hü ) F 360F 360
KLDCKNER. _ 3 - 30. 10. 1964 KLDCKNER. _ 3 - October 30, 1964
UMBOLDT-DEUTZ AG. D 62/26 Gm UMBOLDT-DEUTZ AG. D 62/26 Gm
KÖLNCOLOGNE
zur Kleinhaltung von S cliwingungs aus schlagen der Schaufeln durch einen in Umfangsrichtung verlaufenden Draht 4 miteinander verbunden. Dieser Draht 4 ist, wie insbesondere aus Abb. 2 zu erkennen ist, in den ihn aufnehmenden Bohrungen lose gehalten. Vor und hinter Jeder Bohrung weist ermine Kröpfung dergestalt auf, daß er im Bereich der Bohrung selbst in Achsrichtung letzterer verläuft und trotzdem die allgemeine Umfangsrichtung,. in der der Draht verlaufen soll, eingehalten ist.to keep swinging vibrations small, the blades break through a wire 4 extending in the circumferential direction is connected to one another. This wire 4 is, as shown in particular in Fig. 2 to can be seen, held loosely in the holes receiving it. In front of and behind each hole there is an offset in this way on that it runs in the area of the bore itself in the axial direction of the latter and nevertheless the general circumferential direction. in which the wire should run is observed.
> 11.62 MB F 360> 11.62 MB F 360
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK40981U DE1907241U (en) | 1962-03-30 | 1962-03-30 | DAMPING DEVICE FOR WHEEL BLADES OF ROTARY MACHINES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK40981U DE1907241U (en) | 1962-03-30 | 1962-03-30 | DAMPING DEVICE FOR WHEEL BLADES OF ROTARY MACHINES. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1907241U true DE1907241U (en) | 1964-12-23 |
Family
ID=33347953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK40981U Expired DE1907241U (en) | 1962-03-30 | 1962-03-30 | DAMPING DEVICE FOR WHEEL BLADES OF ROTARY MACHINES. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1907241U (en) |
-
1962
- 1962-03-30 DE DEK40981U patent/DE1907241U/en not_active Expired
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