DE1262290B - Flow machine impeller - Google Patents
Flow machine impellerInfo
- Publication number
- DE1262290B DE1262290B DE1967V0032945 DEV0032945A DE1262290B DE 1262290 B DE1262290 B DE 1262290B DE 1967V0032945 DE1967V0032945 DE 1967V0032945 DE V0032945 A DEV0032945 A DE V0032945A DE 1262290 B DE1262290 B DE 1262290B
- Authority
- DE
- Germany
- Prior art keywords
- wheel
- parts
- projections
- area
- parting line
- 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
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
- F04D29/285—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together
-
- 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
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
- F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
- F01D5/045—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type the wheel comprising two adjacent bladed wheel portions, e.g. with interengaging blades for damping vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Strömungsmaschinen-Laufrad Die Erfindung betrifft ein Strömungsmaschinen-Laufrad, das mit axialer Komponente der Strömungsrichtung durchflossen wird und aus mindestens zwei axial miteinander verspannten Teilen besteht, deren Teilfuge im Bereich der axialen Erstreckung der Schaufeln liegt.Fluid flow machine impeller The invention relates to a fluid flow machine impeller, which is traversed with an axial component of the flow direction and from at least consists of two axially braced parts whose parting line is in the area of the axial extension of the blades.
Bei den bekannten Rädern dieser Art geschieht die Verspannung der Teile miteinander durch einen axialen oder mehrere achsparallele Bolzen. Die für diese Bolzen nötigen Bohrungen schwächen die Radteile. Die Erfindung soll diese Bolzen und Bohrungen entbehrlich machen.In the known wheels of this type, the tensioning takes place Share with each other by one axial or several axially parallel bolts. The for these bolts required holes weaken the wheel parts. The invention aims to achieve this Make bolts and holes unnecessary.
Bekannt ist eine bolzenlose Verspannung axial aneinanderliegender Teile einer Laufrad-Scheibe mittels in Umfangsrichtung verlaufender Nuten und Vorsprünge von Schwalbenschwanzprofil; hierbei wird der eine Radteil zunächst so erwärmt, daß sich seine Nuten über die Vorsprünge des anderen Teils schieben lassen, und sodann geschrumpft, so daß er mit seinen Nuten auf den Vorsprüngen des anderen Teils aufsitzt. Auch die Erfindung benutzt diese schwalbenschwanzförmig profilierten Vorsprünge und Aussparungen als Mittel der Verspannung. Aber jenen Zwang, die Radteile aufeinander aufschrumpfen zu müssen, soll sie vermeiden.A boltless bracing that is axially adjacent to one another is known Parts of an impeller disc by means of grooves and projections running in the circumferential direction of dovetail profile; here one part of the wheel is first heated so that slide its grooves over the protrusions of the other part, and then shrunk so that it rests with its grooves on the projections of the other part. The invention also uses these dovetail-shaped projections and recesses as a means of bracing. But that compulsion, the parts of the bike on top of each other They should avoid having to shrink them.
Das Mittel hierzu besteht darin, daß diese Vorsprünge und Aussparungen in dem radial außerhalb der Radnabe, aber innerhalb der Schaufellänge befindlichen Radialbereich angeordnet sind. Hierdurch wird erreicht, daß die Vorsprünge und Aussparungen sich in Umfangsrichtung nur über den Bereich der Schaufeldicke erstrecken und, da die Schaufeldicke ja kleiner als jeder Schaufelzwischenraum ist, die beiden Radteile sich nach Art eines an sich bekannten Bajonettverschlusses ineinander verschränken lassen.The means for this is that these projections and recesses in the one located radially outside the wheel hub, but within the blade length Radial area are arranged. This ensures that the projections and recesses extend in the circumferential direction only over the area of the blade thickness and, there the blade thickness is smaller than any space between the blades, the two parts of the wheel interlock in the manner of a bayonet lock known per se permit.
Dann müssen die Radteile, um sicher miteinander verspannt zu sein, noch gegen Verdrehung relativ zueinander gesichert sein. Dies geschieht erfindungsgemäß dadurch, daß an mindestens einer Schaufel im Bereich der Teilfuge Niete angeordnet sind.Then, in order to be securely clamped together, the wheel parts still be secured against rotation relative to each other. This is done according to the invention in that rivets are arranged on at least one blade in the area of the parting line are.
Die Erfindung besteht also darin, daß die Verspannung der Radteile miteinander in an sich bekannter Weise durch in Umfangsrichtung verlaufende Vorsprünge des einen Radteils und Aussparungen des anderen Radteils geschieht, ferner .daß diese Vorsprünge und Nuten radial außerhalb der Radnaben, aber innerhalb der Längen der Schaufeln angeordnet sind und daß zur Sicherung gegen Verdrehung der Radteile relativ zueinander an mindestens einer Schaufel im Bereich der Teilfuge Niete angeordnet sind.The invention consists in the fact that the bracing of the wheel parts with one another in a manner known per se by means of projections extending in the circumferential direction of the one part of the wheel and recesses of the other part of the wheel, also .daß these projections and grooves radially outside the wheel hubs, but within the lengths the blades are arranged and that to secure against rotation of the wheel parts rivets arranged relative to one another on at least one blade in the area of the parting line are.
Die Zeichnung zeigt als ein Beispiel der Erfindung ein Laufrad mit teils radialer, teils axialer Meridian-Stromrichtung. Darin bedeuten 1 und 3 die Naben und 2 und 4 die Schaufeln der beiden Radteile, 5 die Teilfuge, 6 und 7 die Vorsprünge bzw. Aussparungen und 8 einen der Niete.The drawing shows an impeller with as an example of the invention partly radial, partly axial meridian flow direction. Here 1 and 3 mean the Hubs and 2 and 4 the blades of the two wheel parts, 5 the parting line, 6 and 7 the Projections or recesses and 8 one of the rivets.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1967V0032945 DE1262290B (en) | 1967-02-10 | 1967-02-10 | Flow machine impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1967V0032945 DE1262290B (en) | 1967-02-10 | 1967-02-10 | Flow machine impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1262290B true DE1262290B (en) | 1968-03-07 |
Family
ID=7587722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1967V0032945 Pending DE1262290B (en) | 1967-02-10 | 1967-02-10 | Flow machine impeller |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1262290B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125344A (en) * | 1975-06-20 | 1978-11-14 | Daimler-Benz Aktiengesellschaft | Radial turbine wheel for a gas turbine |
| US4175911A (en) * | 1975-06-20 | 1979-11-27 | Daimler-Benz Aktiengesellschaft | Radial turbine wheel for a gas turbine |
| DE102015219331A1 (en) * | 2015-10-07 | 2017-04-13 | Voith Patent Gmbh | Radial impeller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE317892C (en) * | ||||
| DE375363C (en) * | 1923-05-12 | Adam Heinrich Boehm | Turbine runner composed of disks | |
| GB795249A (en) * | 1954-06-17 | 1958-05-21 | Garrett Corp | Improvements in or relating to elastic fluid turbine and compressor wheels |
-
1967
- 1967-02-10 DE DE1967V0032945 patent/DE1262290B/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE317892C (en) * | ||||
| DE375363C (en) * | 1923-05-12 | Adam Heinrich Boehm | Turbine runner composed of disks | |
| GB795249A (en) * | 1954-06-17 | 1958-05-21 | Garrett Corp | Improvements in or relating to elastic fluid turbine and compressor wheels |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125344A (en) * | 1975-06-20 | 1978-11-14 | Daimler-Benz Aktiengesellschaft | Radial turbine wheel for a gas turbine |
| US4175911A (en) * | 1975-06-20 | 1979-11-27 | Daimler-Benz Aktiengesellschaft | Radial turbine wheel for a gas turbine |
| DE102015219331A1 (en) * | 2015-10-07 | 2017-04-13 | Voith Patent Gmbh | Radial impeller |
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