EP2242928B1 - Fixation de la roue porteuse d'une pompe centrifuge - Google Patents

Fixation de la roue porteuse d'une pompe centrifuge Download PDF

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Publication number
EP2242928B1
EP2242928B1 EP09701807.1A EP09701807A EP2242928B1 EP 2242928 B1 EP2242928 B1 EP 2242928B1 EP 09701807 A EP09701807 A EP 09701807A EP 2242928 B1 EP2242928 B1 EP 2242928B1
Authority
EP
European Patent Office
Prior art keywords
impeller
bush
beads
wall
fastening
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.)
Active
Application number
EP09701807.1A
Other languages
German (de)
English (en)
Other versions
EP2242928A1 (fr
Inventor
Laurent Costaouec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilo SE
Original Assignee
Wilo SE
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Filing date
Publication date
Application filed by Wilo SE filed Critical Wilo SE
Publication of EP2242928A1 publication Critical patent/EP2242928A1/fr
Application granted granted Critical
Publication of EP2242928B1 publication Critical patent/EP2242928B1/fr
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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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding

Definitions

  • An impeller made of sheet metal of a centrifugal pump has a central coaxial opening, with which the impeller is mounted on the shaft 1 of an electric motor, not shown.
  • a socket 2 is provided, which is formed by a pipe section and which rests in the opening 3 of the impeller 4.
  • the sleeve 2 is in this case inserted so far into the impeller opening 3 until a protruding from the socket 2 outside coaxial annular bead 5 rests on the edge of the opening 3.
  • the sleeve 2 is attached to the impeller opening edge by laser welding.
  • the annular bead 5 is produced by upsetting the bushing wall 2.
  • axially parallel notches 6 are pressed from the outside into the bushing wall, are formed by the axially parallel protruding beads 7 in the inner wall of the socket 2.
  • four axially parallel beads 7 protrude at the inner side of the sleeve 2 at the same distance of 90 degrees, wherein the shaft 1 at the same four places each have a notch or groove 8, in which the beads 7 protrude positively , So that a secure fit between shaft 1 and socket 2 is formed with the impeller 4.
  • Sockets 2 are abutting each other end-mounted on the shaft, so that the length L of the bushings in particular the length of the region 2a, which protrudes at least in part from the impeller determines the exact position of the wheels on the shaft and each other.
  • the sockets 2 are made different lengths, like this Fig. 4 shows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (8)

  1. Roue mobile (4) fabriquée en tôle d'une pompe centrifuge en particulier à plusieurs étages avec des moyens pour la fixation à l'arbre d'entraînement (1) d'un moteur électrique, dans laquelle la roue mobile (4) présente une ouverture centrale coaxiale (3), dans laquelle une douille (2) est fixée de façon coaxiale, caractérisée en ce que
    • la douille (2) est saillante hors de la roue mobile (4) au moins sur un côté de la roue mobile, et
    • la douille (2) présente des bourrelets parallèles à l'axe (7) saillants dans sa paroi intérieure pour la fixation dans des encoches ou des rainures parallèles à l'axe (8) de l'arbre d'entraînement (1) du moteur.
  2. Roue mobile selon la revendication 1, caractérisée en ce que les bourrelets (7) sont formés par des encoches (6) pratiquées par l'extérieur dans la paroi de la douille.
  3. Roue mobile selon la revendication 1 ou 2, caractérisée en ce que les bourrelets parallèles à l'axe (7) sont formés par une région (2a) de la douille saillante hors de la roue mobile.
  4. Roue mobile selon l'une quelconque des revendications précédentes, caractérisée en ce que la longueur des bourrelets (7) vaut 10 à 60 % de la longueur de la douille (2).
  5. Roue mobile selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un bourrelet annulaire coaxial (5) est en saillie sur la paroi extérieure de la douille.
  6. Roue mobile selon la revendication 5, caractérisée en ce que le bourrelet annulaire (5) est disposé dans une région médiane de la douille (2).
  7. Roue mobile selon l'une quelconque des revendications précédentes, caractérisée en ce que la douille est soudée dans l'ouverture centrale (3) de la roue mobile, en particulier par soudage au laser.
  8. Utilisation d'une roue mobile (4) selon l'une quelconque des revendications précédentes dans une pompe centrifuge à plusieurs étages avec plusieurs roues mobiles, dans laquelle les douilles (2) des roues mobiles (4) s'appliquent frontalement l'une contre l'autre et la longueur des douilles détermine la distance des roues mobiles l'une de l'autre.
EP09701807.1A 2008-01-19 2009-01-19 Fixation de la roue porteuse d'une pompe centrifuge Active EP2242928B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008005245A DE102008005245A1 (de) 2008-01-19 2008-01-19 Befestigung des Laufrades einer Kreiselpumpe
PCT/EP2009/000297 WO2009090099A1 (fr) 2008-01-19 2009-01-19 Fixation de la roue porteuse d'une pompe centrifuge

Publications (2)

Publication Number Publication Date
EP2242928A1 EP2242928A1 (fr) 2010-10-27
EP2242928B1 true EP2242928B1 (fr) 2018-03-07

Family

ID=40668406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09701807.1A Active EP2242928B1 (fr) 2008-01-19 2009-01-19 Fixation de la roue porteuse d'une pompe centrifuge

Country Status (5)

Country Link
US (1) US8535001B2 (fr)
EP (1) EP2242928B1 (fr)
CN (1) CN101918718B (fr)
DE (1) DE102008005245A1 (fr)
WO (1) WO2009090099A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102734179A (zh) * 2012-07-11 2012-10-17 四川简阳云海泵业有限公司 小型多级离心泵

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025800A (en) * 1957-06-03 1962-03-20 Duro Co Submersible type pump
US3116696A (en) * 1960-09-20 1964-01-07 Red Jacket Mfg Co Centrifugal pump
US3265001A (en) * 1964-04-24 1966-08-09 Red Jacket Mfg Company Centrifugal pump
US3288074A (en) * 1964-11-02 1966-11-29 Weber Ind Inc Submersible pump
US3477384A (en) * 1968-01-04 1969-11-11 Dempster Ind Inc Submersible multi-stage diffuser type pump
US3612716A (en) * 1970-06-15 1971-10-12 Red Jacket Mfg Co Multistage centrifugal pump
US3837612A (en) * 1973-06-01 1974-09-24 Red Jacket Mfg Co Mold apparatus for mixed flow impeller
JPH0633789B2 (ja) * 1987-10-09 1994-05-02 株式会社日立製作所 多段ポンプ
US5176021A (en) * 1989-10-26 1993-01-05 Grundfos International A/S Method and apparatus for making shaped metal parts by forming sheet metal
DE3939156C2 (de) * 1989-11-27 1994-01-27 Grundfos International A S Bje Zusammengesetztes Laufrad für eine Kreiselpumpe
DE19746850A1 (de) * 1997-10-23 1999-04-29 Wilo Gmbh Laufrad aus Blech
DE19804907C1 (de) * 1998-02-07 1999-07-15 Brinkmann Pumpen K H Brinkmann Kreiselpumpe mit entlüfteter Pumpenkammer
DE29906811U1 (de) * 1999-04-20 2000-08-31 Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG, 58791 Werdohl Mehrstufige Kreiselpumpe
DE102004007739A1 (de) * 2004-02-16 2005-08-25 Wilo Ag Schneidwerk einer Kreiselpumpe

Also Published As

Publication number Publication date
US20110052402A1 (en) 2011-03-03
WO2009090099A1 (fr) 2009-07-23
CN101918718B (zh) 2013-01-02
EP2242928A1 (fr) 2010-10-27
DE102008005245A1 (de) 2009-07-23
US8535001B2 (en) 2013-09-17
CN101918718A (zh) 2010-12-15

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