DE370223C - Attachment of steam turbine blades - Google Patents
Attachment of steam turbine bladesInfo
- Publication number
- DE370223C DE370223C DEA37431D DEA0037431D DE370223C DE 370223 C DE370223 C DE 370223C DE A37431 D DEA37431 D DE A37431D DE A0037431 D DEA0037431 D DE A0037431D DE 370223 C DE370223 C DE 370223C
- Authority
- DE
- Germany
- Prior art keywords
- blade
- attachment
- steam turbine
- groove
- turbine 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.)
- Expired
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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
- F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
- F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
&7Θ22Β& 7Θ22Β
Die Erfindung betrifft die Befestigung von Dampfturbinenschaiufeln in einer Nut des Radkranzes oder der Trommel, indem der Schaufelfuß in die seitlichen Unterschneidüngen der Nut eingedreht wird. Gemäß der vorliegenden Erfindung wird der Schaufelfuß an seinen in die Nutenwände eingreifenden Seitenwänden kreisförmig ausgebildet, so daß der Fuß der an irgendeiner Stelle der ίο Nut eingesetzten Schaufel durch entsprechende Drehung (angenähert 900) in die Seitenwände der Nut eingedreht werden kann. Ebenso leicht wie das Einsetzen ist bei dieser Ausbildung1 des Schaftifelfußes auch das Herausnehmea einer Schaufel, d& die benachbarten Schaufeln — bei völlig lückenlosem Kranz bis zum Schaufelschloß — nur um Schaufelbreite verschoben zu werden brauchen.The invention relates to the fastening of steam turbine blades in a groove of the wheel rim or the drum by screwing the blade root into the lateral undercuts of the groove. According to the present invention, the blade root to its engaging in the groove walls side walls is formed circular so that the foot of the blade used at any point of the ίο groove can be (approximately 90 0) through corresponding rotation of screwed into the side walls of the groove. Just as easy as the insertion is also the removal of a shovel in this embodiment 1 of the shaft foot, d & the neighboring shovels - with a completely gapless rim up to the shovel lock - only need to be moved by the shovel width.
Um die Berührungsflächen zwischen den ineinandergreifenden Vorsprüngen von Schaufelfuß und Nut möglichst groß zu halten, wird in weiterer Ausbildung der Erfindung nur die in der Eindrehrichtung der Schaufel vorn liegende Kante der beiden Seitenflächen des Fußes entsprechend abgerundet, so daß der übrige Teil der Seitenflächen voll zuim Tragen kommt und außerdem ein Drehen der Schaufel über die gewünschte Stellung hinaus verhindert wird.Around the interfaces between the interlocking protrusions of the blade root and to keep the groove as large as possible, in a further embodiment of the invention, only the one in the screwing direction The front edge of the shovel on both side surfaces of the foot is rounded off accordingly, so that the remaining part of the side surfaces comes fully into play and moreover rotation of the blade beyond the desired position is prevented.
Die Zeichnung zeigt in Abb. 1 bis 3 die Erfindung in zwei verschiedenen Ausführungsformen, α ist der mit Einkerbungen versehene Schaufelfuß, in den entsprechende Vorsprünge der Nut b eingreifen. Die Seitenflächen c des Schaufelfußes sind, wie Abb. 2 zeigt, kreisförmig abgedreht. Nach Abb. 3 ist diese Albdrehung auf das in der Eindrehrichtung der Schaufel vorn liegende Ende d beschränkt, so daß bei dieser Ausführung das hintere Ende der Seitenflächen sich bei eingedrehter Schaufel an die Nutenseitenwände anl'egt.The drawing shows in Fig. 1 to 3 the invention in two different embodiments, α is the notched blade root into which the corresponding projections of the groove b engage. The side surfaces c of the blade root are, as Fig. 2 shows, turned off in a circular manner. According to Fig. 3, this rotation is limited to the front end d in the screwing-in direction of the blade, so that in this embodiment the rear end of the side surfaces rests against the groove side walls when the blade is screwed in.
Der zum Ein- undl Ausdrehen der Schaufeln benötigte Platz braucht nur gleich der Schaufeibreite zu sein, so daß nur eine geringe Verschiebung der Schaufel nach dem Eindrehen oder cter benachbarten Schaufeln beim Herausdrehen der Schaufel notwendig- ist.The one for turning the blades in and out required space only needs to be equal to the width of the window, so that only a small Shifting of the blade after turning in or cter adjacent blades when Unscrewing the shovel is necessary.
Ein weiterer Vorteil der Erfindung besteht darin, daß trotz Anordnung nur eines Schaufelschlosses die Beschaufelung gleichzeitig an> verschiedenen Stellen des Radkranzes oder Trommelumfanges erfolgen kann, so daß es möglich ist, die Fertigstellung zu beschleunigen. Another advantage of the invention is that, despite the arrangement, only one shovel lock the blading can take place at> different points on the wheel rim or drum circumference at the same time, see above that it is possible to speed up the completion.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA37431D DE370223C (en) | Attachment of steam turbine blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA37431D DE370223C (en) | Attachment of steam turbine blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE370223C true DE370223C (en) | 1923-02-28 |
Family
ID=6930218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA37431D Expired DE370223C (en) | Attachment of steam turbine blades |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE370223C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE967498C (en) * | 1953-10-02 | 1957-11-14 | English Electric Co Ltd | Blade attachment in axial flow machines |
| DE1128864B (en) * | 1957-03-05 | 1962-05-03 | Oerlikon Maschf | Attachment of rotor blades of an axial flow machine |
| DE1269137B (en) * | 1960-01-07 | 1968-05-30 | Prvni Brnenska Strojirna | Turbo machine runner |
-
0
- DE DEA37431D patent/DE370223C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE967498C (en) * | 1953-10-02 | 1957-11-14 | English Electric Co Ltd | Blade attachment in axial flow machines |
| DE1128864B (en) * | 1957-03-05 | 1962-05-03 | Oerlikon Maschf | Attachment of rotor blades of an axial flow machine |
| DE1269137B (en) * | 1960-01-07 | 1968-05-30 | Prvni Brnenska Strojirna | Turbo machine runner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60202738T2 (en) | Device for securing rotor blades in a groove of a rotor disk | |
| DE2758416C2 (en) | Sprocket set for a bicycle derailleur | |
| DE1961646C3 (en) | Securing for screws or nuts | |
| DE2516061A1 (en) | SHOVEL LOCKING MECHANISM | |
| DE642951C (en) | Screw quick connection | |
| DE370223C (en) | Attachment of steam turbine blades | |
| DE2503127A1 (en) | TRAINING DEVICE FOR WEB MACHINERY | |
| DE3248021C2 (en) | Filler piece for locking a blade ring in a blade retaining groove of a turbo-engine rotor running in the circumferential direction | |
| DE820598C (en) | Blade lock on blading without filler parts of steam and gas turbines and centrifugal compressors | |
| DE497633C (en) | Brake shoe with removable lining | |
| DE2257076C3 (en) | Drum rotor for axial compressors | |
| DE2757494A1 (en) | DEVICE AND METHOD FOR INSTALLATION AND REMOVAL OF GEARS | |
| DE339565C (en) | Formation of tight butt joints between turbine blade heads | |
| DE517764C (en) | Stumbling block | |
| DE639351C (en) | Screw-on ski binding | |
| DE1191999B (en) | Sheet metal lock nut | |
| DE573265C (en) | Tractor wheel | |
| DE470246C (en) | Screw locking | |
| DE894365C (en) | Angled shoulder rim | |
| CH288807A (en) | Milling cutter and process for its manufacture. | |
| DE480589C (en) | Schraem rod | |
| DE2306488C2 (en) | Gang=saw blade production method - comprises stretching and convex-curving back by rollers (AT 15.10.75) | |
| DE450546C (en) | Device for fixing the printing segment on the rotary drum of a rotary type printer | |
| DE601093C (en) | Fitting with sharp teeth to be driven into the base | |
| DE399606C (en) | Frame pillars for clockworks |