EP2242928A1 - Fixation de la roue porteuse d'une pompe centrifuge - Google Patents

Fixation de la roue porteuse d'une pompe centrifuge

Info

Publication number
EP2242928A1
EP2242928A1 EP09701807A EP09701807A EP2242928A1 EP 2242928 A1 EP2242928 A1 EP 2242928A1 EP 09701807 A EP09701807 A EP 09701807A EP 09701807 A EP09701807 A EP 09701807A EP 2242928 A1 EP2242928 A1 EP 2242928A1
Authority
EP
European Patent Office
Prior art keywords
impeller
bushing
beads
axially parallel
rotor
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.)
Granted
Application number
EP09701807A
Other languages
German (de)
English (en)
Other versions
EP2242928B1 (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 AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilo AG filed Critical Wilo AG
Publication of EP2242928A1 publication Critical patent/EP2242928A1/fr
Application granted granted Critical
Publication of EP2242928B1 publication Critical patent/EP2242928B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/18—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

  • the invention relates to a manufactured of sheet metal impeller of a particular multi-stage centrifugal pump with means for attachment to the drive shaft of an electric motor.
  • the object of the invention is to provide an impeller of the type mentioned above with a fastening for the electric motor shaft, which achieves optimum power transmission and accurate position of the impeller with a simple design and installation.
  • the impeller has a central coaxial opening in which a sleeve is coaxially mounted, that the sleeve protrudes at least on an impeller side of the impeller, and that the bush in its inner wall axially parallel beads for attachment in axially parallel notches or grooves of the engine drive shaft.
  • the socket takes on both the task of transmitting forces and the determination of the exact position of the impeller or the distances between the wheels to each other.
  • high torques are transferable to the impeller and it is achieved a low material consumption.
  • This design is used in running wheels made of sheet metal, with a low weight is achieved.
  • a particularly simple construction with high torque transmission is achieved when the beads are formed by notches introduced externally into the socket wall. Furthermore, it is advantageous if the paraxial beads are formed in front of a protruding from the impeller region of the socket. It is also proposed that the length of the beads is 10 to 60% of the length of the bushing.
  • a coaxial annular bead protrudes on the bush outer wall.
  • the annular bead may be arranged in a central region of the socket.
  • the bushing in the central impeller opening is welded in particular by laser welding.
  • FIG. 1 is a perspective view of a first embodiment of the socket
  • Fig. 5 is a view of the front of the impeller in the
  • Impeller suction opening extending into and beyond projecting socket with inwardly projecting beads
  • Fig. 6 is a view of the back of the impeller.
  • 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 bushing 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 socket wall 2, 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.
  • the sockets 2 are designed differently long, as shown in FIG. 4.

Landscapes

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

Abstract

L'invention concerne une roue porteuse, réalisée en tôle, d'une pompe centrifuge en particulier à plusieurs étages, comprenant des moyens de fixation sur l'arbre d'entraînement d'un moteur électrique, ladite roue étant caractérisée en ce qu'elle présente une ouverture coaxiale centrale dans laquelle un manchon est fixé coaxialement, en ce que le manchon est en saillie par rapport à la roue, au moins sur une face de cette roue, et en ce que le manchon présente des bourrelets parallèles à l'axe, en saillie dans sa paroi intérieure, pour la fixation dans des encoches ou des rainures, parallèles à l'axe, de l'arbre d'entraînement du moteur.
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 true EP2242928A1 (fr) 2010-10-27
EP2242928B1 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009090099A1 *

Also Published As

Publication number Publication date
US20110052402A1 (en) 2011-03-03
EP2242928B1 (fr) 2018-03-07
WO2009090099A1 (fr) 2009-07-23
CN101918718B (zh) 2013-01-02
DE102008005245A1 (de) 2009-07-23
US8535001B2 (en) 2013-09-17
CN101918718A (zh) 2010-12-15

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