DE2422289A1 - CONNECTION BETWEEN A COMPRESSOR IMPELLER AND A DRIVE SHAFT - Google Patents
CONNECTION BETWEEN A COMPRESSOR IMPELLER AND A DRIVE SHAFTInfo
- Publication number
- DE2422289A1 DE2422289A1 DE2422289A DE2422289A DE2422289A1 DE 2422289 A1 DE2422289 A1 DE 2422289A1 DE 2422289 A DE2422289 A DE 2422289A DE 2422289 A DE2422289 A DE 2422289A DE 2422289 A1 DE2422289 A1 DE 2422289A1
- Authority
- DE
- Germany
- Prior art keywords
- drive shaft
- connection
- shaft
- impeller
- shaft journal
- 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.)
- Withdrawn
Links
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 241000364057 Peoria Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/025—Fixing blade carrying members on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/09—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
- F16D1/092—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces the pair of conical mating surfaces being provided on the coupled hub and shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/09—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
- F16D2001/0906—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using a hydraulic fluid to clamp or disconnect, not provided for in F16D1/091
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Supercharger (AREA)
Description
Dipl.. kg. R. HOIiZEKDipl .. kg. R. HOIiZEK
ATJGSBUIiOATJGSBUIiO
TKLKFONi 2187.»TKLKFONi 2187. »
W. 672W. 672
Augsburg, den 7. Mai 1974Augsburg, May 7th 1974
Caterpillar Tractor Company, 100 N9E. Adams Street, Peoria, Illinois, V,St,A.Caterpillar Tractor Company, 100 N 9 E. Adams Street, Peoria, Illinois, V, St, A.
Verbindung zwischen einem Verdichterlaufrad und einerConnection between a compressor impeller and a
Antriebswelledrive shaft
Die Erfindung betrifft die Verbindung zwischen einem Verdichterlaufrad, beispielsweise eines Zentrifugalverdichters einer Gasturbine, und einer Antriebswelle,The invention relates to the connection between a compressor impeller, for example a centrifugal compressor a gas turbine, and a drive shaft,
Die Laufräder bisher bekannter ZentrifugalverdichterThe impellers of previously known centrifugal compressors
409883/029S409883 / 029S
weisen sämtlich eine Nabe mit einer mittigen Sackbohrung oder Durchgangsbohrung auf, in welche die Antriebswelle hineingesteckt ist« Diese zur Aufnahme der Welle vorgesehene Nabenbohrung schwächt zwangläufig die Nabe, Ferner ist das Laufrad eines Zentrifugalverdichters gewöhnlich aus einer Leichtmetallegierung hergestellt, während die Antriebswelle normalerweise aus schwererem Werkstoff, beispielsweise legiertem Stahl, besteht. Die Welle vergrößert in diesem Fall die Trägheit des Laufrads.all have a hub with a central blind hole or through hole into which the drive shaft is plugged in «This hub bore provided for receiving the shaft inevitably weakens the hub the impeller of a centrifugal compressor is usually made of a light metal alloy, while the The drive shaft is usually made of a heavier material, such as alloy steel. The wave enlarges in this case the inertia of the impeller.
Der Erfindung liegt die Aufgabe zugrunde, die Verbindung zwischen dem Verdichterlaufrad und der Antriebswelle im Sinne einer Verstärkung der Laufradnabe und einer Verminderung des Trägheitsmoments des Laufrads zu verbessern«The invention is based on the object of the connection between the compressor impeller and the drive shaft in the To strengthen the impeller hub and reduce the moment of inertia of the impeller «
Im Sinne der Lösung dieser Aufgabe ist diese Verbindung gemäß der Erfindung dadurch gekennzeichnet, daß das Verdichterlaufrad eine massive Nabe und einen damit einstückig ausgebildeten Wellenzapfen aufweist, der mit Festsitζ in einer, an einer Antriebswelle gebildeten Büchse sitzt, und daß ein Druckmitteleinlaß zum Einpressen von Druckmittel zwischen die Büchseninnenfläche und die Mantelfläche des Wellenzapfens zwecks Ausweitens derIn the sense of solving this problem, this connection according to the invention is characterized in that the Compressor impeller has a massive hub and a shaft journal formed in one piece with it, which is connected with Festsitζ in one, formed on a drive shaft The sleeve sits, and that a pressure medium inlet for pressing pressure medium between the inner surface of the sleeve and the Outer surface of the shaft journal for the purpose of expanding the
409883/0295409883/0295
Büchse beim Einsetzen oder Herausnehmen des Wellenzapfens in bzw«, aus der Büchse vorgesehen ist.Bushing when inserting or removing the shaft journal in or «, is provided from the bushing.
Infolge der erfindungsgemäßen Anordnung ist die Laufradnabe kräftiger als die mit Bohrungen zur Aufnahme der Antriebswelle versehenen Naben der bekannten Laufräder,As a result of the arrangement according to the invention is the Impeller hub stronger than the hubs of the known impellers, which are provided with holes to accommodate the drive shaft,
Zweckmäßigerweise ist der Wellenzapfen kegelstumpfförmig ausgebildet und verjüngt sich zu seinem freien Ende hin. Die den Wellenzapfen aufnehmende Hülse ist in entsprechender Weise konisch. Das Kegelverhältnis beträgt vorzugsweise etwa 50 : 1, d,h, der Tangens des halben Kegelwinkels ist etwa 0,01,The shaft journal is expediently designed in the shape of a truncated cone and tapers towards its free end there. The sleeve receiving the shaft journal is correspondingly conical. The cone ratio is preferably about 50: 1, i.e. the tangent of half Taper angle is about 0.01,
Der Druckmxttelexnlaß befindet sich vorzugsweise in der Antriebswelle und steht mit der darin gebildeten Büchsenbohrung in Verbindung, In Abwandlung dazu kann der Druckmxttelexnlaß im Wellenzapfen gebildet sein und mit einem Kanal im Laufrad in Verbindung stehen.The Druckmxttelexnlaß is preferably located in the drive shaft and stands with the one formed therein Bushing bore in connection, as a modification of this, the Druckmxttelexnlaß can be formed in the shaft journal and with communicate with a channel in the impeller.
Eine bevorzugte Ausfuhrungsform der Erfindung wird nachstehend mit Bezug auf die anliegende Zeichnung, die einen Axialschnitt durch eine erfindungsgemäße AnordnungA preferred embodiment of the invention is hereinafter with reference to the accompanying drawing, which shows an axial section through an arrangement according to the invention
409883/0295409883/0295
zeigt, beispielsweise beschrieben.shows, for example, described.
Das Laufrad 1 weist einen damit einstückig ausgebildeten Wellenzapfen 2 auf, der in eine Büchse 3 an einem Ende einer Antriebswelle 4 mit Pestsitz eingepreßt ist. Der Wellenzapfen 2 ist kege1stumpfförmig ausgebildet und verjüngt sich zu seinem freien Ende hin. Das Kegelverhältnis beträgt etwa 50 : 1, d,h, der Tangens des halben Kegelwinkels ist etwa 0,01, Die in der Antriebswelle 4 gebildete Büchsenbohrung 3 ist in entsprechender Weise konisch. Die Antriebswelle 4 weist weiter eine Gewindebohrung 5 mit kleinem Durchmesser auf, die im Bereich der kegelförmigen Mantelfläche des Wellenzapfens 2 in die Büchsenbohrung hineinführt. Beim Zusammenbau des Laufrads und der Antriebswelle wird die Gewindebohrung 5 mit einer beispielsweise Drucköl oder Druckwasser liefernden Hochdruckquelle verbunden und der Druck wird während der letzten Phase des Einsetzens des Wellenzapfens 2 in die Büchse 3 zur Wirkung gebracht. Das unter hohem Druck stehende Druckmittel bewirkt, daß sich die Büchse 3 ausweitet und der Wellenzapfen 2 daher weiter in die Büchse hinein geschoben werden kann. Danach wird der Druck weggenommen und die Büchse 3 zieht sich um den Wellenzapfen 2 herum zusammen,The impeller 1 has a shaft journal 2 which is formed in one piece therewith and which is inserted into a bush 3 at one end a drive shaft 4 is pressed in with an interference fit. The shaft journal 2 is frustoconical and tapers towards its free end. The taper ratio is about 50: 1, i.e. the tangent of half the taper angle is about 0.01, the sleeve bore 3 formed in the drive shaft 4 is conical in a corresponding manner. the Drive shaft 4 also has a threaded hole 5 with a small diameter, which is in the area of the conical The outer surface of the shaft journal 2 leads into the bushing bore. When assembling the impeller and the drive shaft the threaded bore 5 is connected to a high-pressure source delivering, for example, pressurized oil or pressurized water and the pressure is during the last phase of the insertion of the journal 2 in the sleeve 3 to Brought an effect. The high pressure pressure medium causes the sleeve 3 to expand and the Shaft journal 2 can therefore be pushed further into the bush. Then the pressure is removed and the Bush 3 contracts around the shaft journal 2,
409883/0295409883/0295
so daß sich ein äußerst straffer Sitz ergibt. Sollen das Laufrad 1 und die Antriebswelle 4 voneinander getrennt werden, wird die Hochdruckquelle wiederum an die Einlaßbohrung 5 angeschlossen und der hohe Druck zur Wirkung gebracht. Dadurch dehnt sich die Büchse 3 wieder, so daß der Wellenzapfen 2 und die Antriebswelle 4 ohne gegenseitige Beschädigung voneinander getrennt werden können.so that there is an extremely tight fit. Should that Impeller 1 and the drive shaft 4 are separated from each other, the high pressure source is in turn to the inlet bore 5 connected and the high pressure brought into effect. As a result, the sleeve 3 expands again, so that the shaft journal 2 and the drive shaft 4 can be separated from one another without damaging each other.
Die erfindungsgemäße Anordnung hat den Vorteil, daß die Laufradnabe nicht durch eine mittige Bohrung geschwächt wird und daß das Trägheitsmoment des Laufrads kleiner ist, da es nicht auf einer mittigen Welle sitzt, die aus schwererem Material als das Laufrad besteht. Weiterhin hat die erfindungsgemäße Anordnung den Vorteil, daß der Fußkreisdurchmesser der Laufradschaufeln kleiner gemacht werden kann, da die Nabe keinen Platz für eine mittige Bohrung zur Aufnahme der Antriebswelle zu besitzen braucht. Die Nabe kann jedoch mit einer Bohrung kleinen Durchmessers versehen sein, beispielsweise zur ölzufuhr oder als Druckmitteleinlaß zum Ausweiten der Büchse,The arrangement according to the invention has the advantage that the impeller hub is not weakened by a central bore and that the moment of inertia of the impeller is smaller because it does not sit on a central shaft that is made of heavier material than the impeller. Furthermore, the arrangement according to the invention has the advantage that the Root diameter of the impeller blades can be made smaller since the hub does not have room for a central one Needs to have a hole to accommodate the drive shaft. However, the hub can have a small diameter bore be provided, for example for oil supply or as a pressure medium inlet for expanding the sleeve,
Anstelle des angegebenen Kegelverhältnisses von etwa 50 : 1 kann auch ein anderes Kegelverhältnis Anwendung finden oder der Wellenzapfen kann zylindrisch sein.Instead of the specified taper ratio of around 50: 1, another taper ratio can also be used or the shaft journal can be cylindrical.
409883/0295409883/0295
Die Erfindung beschränkt sich nicht auf einen Zentrifugalverdichter, an dessen Beispiel die Erfindung erläutert worden ist, sondern kann auch bei einem Axialverdichter Anwendung finden«The invention is not limited to a centrifugal compressor, the example of which is used by the invention has been explained, but can also be used in an axial compressor «
409883/0295409883/0295
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2975373A GB1422426A (en) | 1973-06-22 | 1973-06-22 | Compressor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2422289A1 true DE2422289A1 (en) | 1975-01-16 |
Family
ID=10296621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2422289A Withdrawn DE2422289A1 (en) | 1973-06-22 | 1974-05-08 | CONNECTION BETWEEN A COMPRESSOR IMPELLER AND A DRIVE SHAFT |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5022912A (en) |
| AU (1) | AU6848074A (en) |
| BE (1) | BE815297A (en) |
| CH (1) | CH576074A5 (en) |
| DE (1) | DE2422289A1 (en) |
| FR (1) | FR2234475B3 (en) |
| GB (1) | GB1422426A (en) |
| IT (1) | IT1014243B (en) |
| NL (1) | NL7406117A (en) |
| SE (1) | SE7406708L (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722630A (en) * | 1985-09-20 | 1988-02-02 | The Garrett Corporation | Ceramic-metal braze joint |
| US4749334A (en) * | 1984-12-06 | 1988-06-07 | Allied-Signal Aerospace Company | Ceramic rotor-shaft attachment |
| DE102004053289A1 (en) * | 2004-11-04 | 2006-05-11 | Leybold Vacuum Gmbh | Vacuum pump impeller |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1493087A (en) * | 1975-04-28 | 1977-11-23 | Ibm | Ellipsometer |
| JPS60103082A (en) * | 1983-11-09 | 1985-06-07 | 日本碍子株式会社 | Metal ceramic bonded body and manufacture |
| US4639194A (en) * | 1984-05-02 | 1987-01-27 | General Motors Corporation | Hybrid gas turbine rotor |
| FI864730A7 (en) * | 1986-11-20 | 1988-05-21 | Ahlstroem Oy | FAESTSYSTEM. |
| GB9104700D0 (en) * | 1991-03-06 | 1991-04-17 | Mercol Descaling Co Ltd | Pipeline boring apparatus |
| US6499969B1 (en) * | 2000-05-10 | 2002-12-31 | General Motors Corporation | Conically jointed turbocharger rotor |
| US7722336B2 (en) * | 2004-12-14 | 2010-05-25 | Honeywell International Inc. | Compressor wheel |
| EP2096317B1 (en) | 2008-02-27 | 2012-08-15 | Agilent Technologies, Inc. | Method for manufacturing the rotor assembly of a rotating vacuum pump |
-
1973
- 1973-06-22 GB GB2975373A patent/GB1422426A/en not_active Expired
-
1974
- 1974-05-01 AU AU68480/74A patent/AU6848074A/en not_active Expired
- 1974-05-07 NL NL7406117A patent/NL7406117A/xx not_active Application Discontinuation
- 1974-05-08 DE DE2422289A patent/DE2422289A1/en not_active Withdrawn
- 1974-05-20 FR FR7417501A patent/FR2234475B3/fr not_active Expired
- 1974-05-20 BE BE144543A patent/BE815297A/en unknown
- 1974-05-21 SE SE7406708A patent/SE7406708L/ not_active Application Discontinuation
- 1974-05-23 JP JP49057391A patent/JPS5022912A/ja active Pending
- 1974-05-29 IT IT68679/74A patent/IT1014243B/en active
- 1974-06-07 CH CH784774A patent/CH576074A5/xx not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749334A (en) * | 1984-12-06 | 1988-06-07 | Allied-Signal Aerospace Company | Ceramic rotor-shaft attachment |
| US4722630A (en) * | 1985-09-20 | 1988-02-02 | The Garrett Corporation | Ceramic-metal braze joint |
| DE102004053289A1 (en) * | 2004-11-04 | 2006-05-11 | Leybold Vacuum Gmbh | Vacuum pump impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5022912A (en) | 1975-03-12 |
| FR2234475A1 (en) | 1975-01-17 |
| SE7406708L (en) | 1974-12-23 |
| AU6848074A (en) | 1975-11-06 |
| CH576074A5 (en) | 1976-05-31 |
| NL7406117A (en) | 1974-12-24 |
| GB1422426A (en) | 1976-01-28 |
| IT1014243B (en) | 1977-04-20 |
| FR2234475B3 (en) | 1977-03-18 |
| BE815297A (en) | 1974-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |