DE927870C - Process for the production of curved cover disks from pressed sheet metal for welded pump impellers - Google Patents
Process for the production of curved cover disks from pressed sheet metal for welded pump impellersInfo
- Publication number
- DE927870C DE927870C DES32663A DES0032663A DE927870C DE 927870 C DE927870 C DE 927870C DE S32663 A DES32663 A DE S32663A DE S0032663 A DES0032663 A DE S0032663A DE 927870 C DE927870 C DE 927870C
- Authority
- DE
- Germany
- Prior art keywords
- sheet metal
- production
- cover disks
- pressed sheet
- curved cover
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/78—Making other particular articles propeller blades; turbine blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Eine bewndeTs einfache. Herstellungsmöglichkeit hochwertiger Pumpenlaufräder besteht darin, daß man sie aus gepreßten-Blechteilen herstellt, die durch Schweißung vexb#unden werden. Die Preßteile werden duTch zwei Drehteile ergänzt, nämlich die, Radnabe, und einen VerstIrktings# ode-T Dichtungsring am Radeintritt. Die Deckscheiben können da,I>,-i eben oder gewölbt sein. Die, Erfindung betrifft den FaJ1 gewölbter Deckscheiben. Es, müssen, ailsoi die Deckscheiben, die aus. einer BlechtaIel ausgeschnitten Werden, durch Pressen in die gewünschte Fo,rrn, gebracht werden. Die verwendeten Bleche sind verhältnismäßig dünn, müssen jedoch, nach Ausführung des Preßvorganges völlig glatt und faltenfrei setin, eine- Bedingung,,die nur schwer einzuhalten ist. Das Herstellungsverfahren dieser Deckscheiben wird wesentlich. günstiger und sicherer, wenn gemäß der Erfindung an. den Außenrand der Scheibe eine Krempe, angepreßt wird, die nach Fertigstellung des Laufrades durch eine spanabhebende Bearbeitung wieder beseitigt wird, Die angepreßte Y,-xempe stellt sicher, daß die Scheibenoberfläche nach dem Preßvorgang keineTleii Faltung aufweist, die die, StTöniung innerhalb de# Sohaufelkanäle beeinträchtigen könnte. Die Erfindung sei an Hand eines Ausfühiungsbeispiels erläuteTt. Es werden. zunächst zwei ebene S cheiben a und b mit den öffnungen c und d ausgeschnitten (Fig. i und 4) und dann -,epTeßt, Wie es, die Fig. 2 und 5 zeigen. Hierbei wird an den äußeren Umfang je eine IC-rempe e bzw. f angepreßt. jetzt werden die Schaufeln g an die Scheibe b angeschweißt. Außerdem wird die Nabe ii eingeschweißt. D.%ranfhin wird auch die Scheibe a aufgesetzt und mit den Schanfeln vers,ch-Weißt. Das Ganze wird nun überdreht, und zwair so, daß die Krempen, e und f wieder entfernt werdend so, daß nach Aufschweißen, des Ringes, k, das übrigens bereits vor dem Abdrehen vorgenommen werden kann, das in Fig. 3 dargestellte LaufTad hergestellt ist.A simple one. The possibility of producing high-quality pump impellers is that they are made from pressed sheet metal parts which are vexb # unden by welding. The pressed parts are supplemented by two turned parts, namely the wheel hub and a reinforcing # ode-T sealing ring at the wheel inlet. The cover disks can be flat or curved. The invention relates to curved cover plates. It, must, ailsoi the cover disks that made. cut out of a metal sheet and pressed into the desired shape. The sheets used are relatively thin, but must be completely smooth and wrinkle-free after the pressing process has been carried out, a condition that is difficult to adhere to. The manufacturing process for these cover disks becomes essential. cheaper and safer if according to the invention. A rim is pressed onto the outer edge of the disc, which is removed again by machining after the impeller has been completed could affect. The invention is explained on the basis of an exemplary embodiment. It will. firstly two plane S cheiben a and b with the openings c and d excised and then (Figure i and 4.) -, epTeßt, As, Figures 2 and 5.. Here, it is pressed and f at the outer peripheral per an IC Rempe e. now the blades g are welded to the disk b. In addition, the hub ii is welded in. D.% ranfhin also the disc a is put on and vers, ch-Knows with the shelves. The whole thing is now turned over, and in such a way that the rims, e and f are removed again so that after welding on the ring, k, which incidentally can be made before turning, the LaufTad shown in Fig. 3 is made .
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES32663A DE927870C (en) | 1953-03-20 | 1953-03-20 | Process for the production of curved cover disks from pressed sheet metal for welded pump impellers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES32663A DE927870C (en) | 1953-03-20 | 1953-03-20 | Process for the production of curved cover disks from pressed sheet metal for welded pump impellers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE927870C true DE927870C (en) | 1955-05-20 |
Family
ID=7480921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES32663A Expired DE927870C (en) | 1953-03-20 | 1953-03-20 | Process for the production of curved cover disks from pressed sheet metal for welded pump impellers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE927870C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4402493A1 (en) * | 1994-01-28 | 1995-08-03 | Klein Schanzlin & Becker Ag | Wheel |
-
1953
- 1953-03-20 DE DES32663A patent/DE927870C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4402493A1 (en) * | 1994-01-28 | 1995-08-03 | Klein Schanzlin & Becker Ag | Wheel |
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