WO1987003654A1 - Apparatus for moving the impeller of a pump axially - Google Patents
Apparatus for moving the impeller of a pump axially Download PDFInfo
- 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
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI854880A FI85618C (en) | 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 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 (en) |
FI (1) | FI85618C (en) |
SE (1) | SE8802177L (en) |
WO (1) | WO1987003654A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993011998A1 (en) * | 1991-12-11 | 1993-06-24 | Jetmarine Ag | Hydrojet |
CN103438021A (en) * | 2013-09-10 | 2013-12-11 | 唐山怡人鼓风机制造有限公司 | Labyrinth seal structure of air blower |
Citations (2)
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 |
-
1985
- 1985-12-11 FI FI854880A patent/FI85618C/en not_active IP Right Cessation
-
1986
- 1986-12-09 WO PCT/FI1986/000143 patent/WO1987003654A1/en active Application Filing
- 1986-12-09 DE DE19863690630 patent/DE3690630T1/de not_active Withdrawn
-
1988
- 1988-06-10 SE SE8802177A patent/SE8802177L/en not_active Application Discontinuation
Patent Citations (2)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993011998A1 (en) * | 1991-12-11 | 1993-06-24 | Jetmarine Ag | Hydrojet |
CN103438021A (en) * | 2013-09-10 | 2013-12-11 | 唐山怡人鼓风机制造有限公司 | Labyrinth seal structure of air blower |
Also Published As
Publication number | Publication date |
---|---|
FI854880A0 (en) | 1985-12-11 |
FI854880A (en) | 1987-06-12 |
SE8802177D0 (en) | 1988-06-10 |
FI85618C (en) | 1992-05-11 |
SE8802177L (en) | 1988-06-10 |
FI85618B (en) | 1992-01-31 |
DE3690630T1 (en) | 1988-11-17 |
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