WO1987003654A1 - Apparatus for moving the impeller of a pump axially - Google Patents

Apparatus for moving the impeller of a pump axially Download PDF

Info

Publication number
WO1987003654A1
WO1987003654A1 PCT/FI1986/000143 FI8600143W WO8703654A1 WO 1987003654 A1 WO1987003654 A1 WO 1987003654A1 FI 8600143 W FI8600143 W FI 8600143W WO 8703654 A1 WO8703654 A1 WO 8703654A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
shaft sleeve
shaft
pump
moving
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.)
Ceased
Application number
PCT/FI1986/000143
Other languages
English (en)
French (fr)
Inventor
Raimo Fellman
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom Corp
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 Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of WO1987003654A1 publication Critical patent/WO1987003654A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/042—Axially shiftable rotors
    • 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides

Definitions

  • the present invention relates to an apparatus for the axial moving of the impeller of a pump.
  • the apparatus comprises an impeller fastened with threads to a shaft which is rotatably mounted on bearings provided outside the pump casing and equipped with a shaft sleeve which is pressed against the hub with clasp nuts.
  • the object of the invention is to create a simple mechanism for the axial transfer of the impeller.
  • the apparatus of the invention is characterized in that there is a lug in the shaft sleeve which fits to a notch in the hub of the impeller or vice versa.
  • the impeller is fastened to a shaft 4 with inner threads in its hub 3 and outer threads in the end 5 of the shaft.
  • the shaft is mounted rotatably on bearings 6 and 7 provided outside the pump casing.
  • a shaft sleeve 8 is disposed on the shaft and pressed tightly against the end surface of the hub with a nut 9.
  • the nut has the opposite thread from the impeller.
  • a lug 12 is situated on the end of the shaft sleeve by the impeller ' and it fits to the notch 13 in the hub of the impeller.
  • the shaft sleeve can, of course, have several lugs and the hub several notches.
  • the lugs can be situated in the hub and the notches on the shaft sleeve, too.
  • the clearance between the front surface of the impeller and the corresponding surface in the casing is marked with A.
  • the clearance between the back surface of the impeller and the corresponding surface in the casing is marked with B.
  • the impeller is moved axially as follows:
  • the nut 9 is unscrewed which means that the threaded joint between the impeller 2 and the shaft 4 slackens, too.
  • the shaft sleeve 8 is rotated in the direction desired and the impeller 2 rotates similarly and at the same time moves axially. The rotation of the shaft 4 along with the shaft sleeve must be prevented.
  • the impeller and the shaft sleeve can be connected to each other also in other ways so that when the shaft sleeve is rotated, the impeller rotates simultaneously with e.g a slot joint.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PCT/FI1986/000143 1985-12-11 1986-12-09 Apparatus for moving the impeller of a pump axially Ceased WO1987003654A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI854880A FI85618C (fi) 1985-12-11 1985-12-11 Anordning foer axiell foerskjutning av en pumps loephjul.
FI854880 1985-12-11

Publications (1)

Publication Number Publication Date
WO1987003654A1 true WO1987003654A1 (en) 1987-06-18

Family

ID=8521817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1986/000143 Ceased WO1987003654A1 (en) 1985-12-11 1986-12-09 Apparatus for moving the impeller of a pump axially

Country Status (4)

Country Link
DE (1) DE3690630T1 (https=)
FI (1) FI85618C (https=)
SE (1) SE8802177L (https=)
WO (1) WO1987003654A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011998A1 (de) * 1991-12-11 1993-06-24 Jetmarine Ag Wasserstrahlantrieb
CN103438021A (zh) * 2013-09-10 2013-12-11 唐山怡人鼓风机制造有限公司 一种鼓风机迷宫密封结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404717A (en) * 1921-01-21 1922-01-24 Allis Chalmers Mfg Co Hydraulic machine
US1404712A (en) * 1921-01-21 1922-01-24 Allis Chalmers Mfg Co Hydraulic machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404717A (en) * 1921-01-21 1922-01-24 Allis Chalmers Mfg Co Hydraulic machine
US1404712A (en) * 1921-01-21 1922-01-24 Allis Chalmers Mfg Co Hydraulic machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011998A1 (de) * 1991-12-11 1993-06-24 Jetmarine Ag Wasserstrahlantrieb
CN103438021A (zh) * 2013-09-10 2013-12-11 唐山怡人鼓风机制造有限公司 一种鼓风机迷宫密封结构

Also Published As

Publication number Publication date
FI85618B (fi) 1992-01-31
FI854880L (fi) 1987-06-12
DE3690630T1 (https=) 1988-11-17
FI854880A0 (fi) 1985-12-11
SE8802177D0 (sv) 1988-06-10
SE8802177L (sv) 1988-06-10
FI85618C (fi) 1992-05-11

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