EP1300594A1 - Abwasserkreiselpumpe - Google Patents
Abwasserkreiselpumpe Download PDFInfo
- Publication number
- EP1300594A1 EP1300594A1 EP02020035A EP02020035A EP1300594A1 EP 1300594 A1 EP1300594 A1 EP 1300594A1 EP 02020035 A EP02020035 A EP 02020035A EP 02020035 A EP02020035 A EP 02020035A EP 1300594 A1 EP1300594 A1 EP 1300594A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting plate
- pump
- pump housing
- cutting
- centrifugal pump
- 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
Links
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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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
Definitions
- the invention is based on a waste water centrifugal pump according to the Preamble of claim 1.
- Sewer pump of smaller size, mounted in collecting wells are and there incoming wastewater, more or less large Contains solids, pump out, have in their intake Cutting unit on, which consists of a cutting plate, which is stationary on the pump housing is fixed and has a plurality of cutting teeth, and from a rotating cutting body, which is fixed to the pump shaft and a plurality of counter - cutting teeth, with the cutting teeth of the Intersecting insert, has, consists. Because such reapers a relatively large wear and tear, they must be replaced often become. The replacement is cumbersome and time consuming, what about the unfavorable mounting structure of the cutting unit is due to the pump housing. So it is necessary the pump housing partially or completely disassemble the insert and then remove the cutting body.
- the object of the invention is to improve an introductory quoted centrifugal pump to the effect that the cutting unit quickly and easily replaced and securely fastened can, without disassembly of the pump housing is required, in particular to replace the cutting plate.
- the waste water pump is a simple and quick replacement allows the cutting unit.
- a disassembly of any part of the Pump housing is no longer required. It is enough, the cutting plate to be released by rotation and then by simply removing to remove the pump housing. Thereafter, the cutting body after loosening its fixing screw from the pump shaft as well be deducted quickly. The insertion of a new cutting unit done just as quickly and easily in the reverse order.
- the Speed and simplicity of replacing the cutting unit is thus the lack of a relatively large number of mounting screws attributed, which, as a further advantage, the production cost the sewage centrifugal pump according to the invention are reduced. Furthermore, there is no longer the risk of automatic detachment of Cutting plate, because the torque load of the insert in their Einsetzmosides and thus acts in their Einklemmraum.
- applied bayonet connection is the cutting plate at its outer periphery with provided a plurality of recesses and the pump housing has accordingly the number of these recesses more, radially to the axis of rotation the pump shaft projecting and the edge of the insert between these recesses engaging behind retaining projections, the edge between the retaining projections and the pump housing can be clamped.
- a simple embodiment for the Fesklemmen the insert exists in that the edge of the cutting plate between the recesses is provided with several Klemmnocken, with the help of the Cutting plate between the pump housing and the retaining projections is trapped.
- a sewage pump unit 1 which consists of a Abwassernikelpumpe 2 and an electric motor 3 composed to the drive.
- the wastewater pump comprises a pump housing 4 with an intake 5, an outlet 6 and several outriggers 7. With the outriggers, the unit 1 is placed on a floor surface, a shelf or the like supported, wherein the support feet have sufficient height to prevent the ingress of waste Allow waste water in the intake 5 of the pump 2.
- a cutting unit provided, consisting of a cutting plate 8 with preferably two Cutting teeth 9 and a cutting body 10 with preferably two Counter cutting teeth 11 is.
- the cutting plate 8 is stationary on the outside of the pump housing 4 attached while the cutter body 10 at the front end 12 of the rotating pump shaft 13 is screwed tight.
- the cutting body 10 is supported in the case shown on the pump impeller 14th 3 (Fig. 3), which in turn is non-rotatable and at an axial stop, e.g. a collar or a paragraph, attached to the pump shaft 13 fixed is.
- the cutting plate 8 To attach the cutting plate 8 to the pump housing 4 is a Bayonet connection provided the best in Figures 2 and 3 can be seen.
- the cutting plate 8 has a central Hole 15, through which the cutting body 10 mounted in his State according to the figures 1 and 3 extending therethrough, such that a sufficiently large inlet cross section for the wastewater to be removed remains and the cutting teeth 9 of the cutting plate 8 and the counter-cutting teeth 11 of the cutter body 10 cooperate to solid portions in the wastewater in the usual way to crush.
- the bayonet connection is formed by a plurality of recesses 16 on the outer Circumference of the cutting plate 8 and by according to the number these recesses equal number of retaining projections 17 on the pump housing 4, wherein the holding projections are radial to the axis of rotation 18 of the pump shaft 13 projecting.
- the projections 17 form between itself and their facing inner edge region of the pump housing 4 a distance of about the thickness of the outer edge the cutting plate 8 between the recesses 16 corresponds. So can the corresponding edge portions 8a of the cutting plate 8 between behind the recesses 16 of the retaining projections 17 when the insert is rotated after it has been inserted axially becomes.
- the cutting plate 8 is on its outside, d. H. on the side, which faces the retaining projections 17, with a plurality of clamping cams 19 provided.
- the clamping cam 19 are formed, for example, comma-shaped (Fig. 2); but they can also be wedge-shaped.
- the provision the clamping cam 19 ensures that the cutting plate 8 wobble-free and is self-locking clamped to the pump housing 4.
- the pump housing 4 Preferably is the pump housing 4 with a to the suction area. 5 adjacent, annular Rezess 20 provided which the Randabscnitte 8a of the cutting plate 8 receives.
- a locking screw 22 is provided be.
- This locking screw is advantageous in one of the retaining projections 17 screwed in and presses the insert, d. H. their corresponding Peripheral edge portion 8a in the recess, against the Pump housing 4.
- the cutting plate or the pump housing if the insert has a through hole, a recess (not shown), in which engages the locking screw. Since the pump housing 4 is usually provided with support feet 7 is, it makes sense, the outriggers in such a way that they too at the same time form the retaining projections 17, as shown in Figures 1 and 3 is shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Fig. 1
- eine perspektivische Ansicht auf das Ausführungsbeispiel, gesehen auf die Unterseite der Abwasserkreiselpumpe,
- Fig. 2
- eine perspektivische und auseinander gezogene Darstellung auf das Schneidwerk der Abwasserkreiselpumpe,
- Fig. 3
- einen Axialschnitt durch die Abwasserkreiselpumpe nach Fig. 1.
Claims (9)
- Abwasserkreiselpumpe, bestehend aus einem mit mehreren Abstützfüßen versehenen Pumpengehäuse, einer Pumpenwelle, einem in dem Pumpengehäuse auf der Pumpenwelle drehfest angeordneten Pumpenlaufrad und einem im Saugbereich des Pumpengehäuses vorgesehenen Schneidwerk für Feststoffanteile des Abwassers, wobei das Schneidwerk eine am Pumpengehäuse stationär befestigte Schneidplatte und einen rotierenden, an der Pumpenwelle befestigten, mit der Schneidplatte zusammenwirkenden Schneidkörper aufweist, dadurch gekennzeichnet, dass die Schneidplatte (8) auf der Außenseite des Pumpengehäuses (4) mittels einer Bajonettverbindung (16, 17) befestigt ist.
- Abwasserkreiselpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Schneidplatte (8) an ihrem äußeren Umfang mit mehreren Ausnehmungen (16) versehen ist, dass das Pumpengehäuse (4) entsprechend der Anzahl dieser Ausnehmungen mehrere, radial zur Drehachse (18) der Pumpenwelle (13) vorkragende, die so gebildeten Randabschnitte (8a) der Schneidplatte (8) zwischen deren Ausnehmungen (16) hintergreifende Haltevorsprünge (17) aufweist und dass die Randabschnitte zwischen dem Pumpengehäuse und den Haltevorsprüngen einklemmbar sind.
- Abwasserkreiselpumpe nach Anspruch 2, dadurch gekennzeichnet, dass die Randabschnitte (8a) der Schneidplatte (8) je mit einer Klemmnocke (19) versehen sind und die Klemmnocken die Schneidplatte (8) zwischen dem Pumpengehäuse (4) und den Haltevorsprüngen (17) einklemmen.
- Abwasserkreiselpumpe nach Anspruch 3, dadurch gekennzeichnet, dass die Klemmnocken (19) auf den Randabschnitten (8a) der Schneidplatte (8) komma- oder keilförmig ausgebildet sind.
- Abwasserkreiselpumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Schneidplatte (8) mittels einer Sicherungsschraube (22) drehgesichert ist.
- Abwasserkreiselpumpe nach Anspruch 5, dadurch gekennzeichnet, dass die Sicherungsschraube (22) in einem der Haltevorsprünge (17) angeordnet ist.
- Abwasserkreiselpumpe nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Sicherungsschraube (22) in eine Vertiefung der Schneidplatte (8) oder unter Durchdringung der Schneidplatte in eine Vertiefung des Pumpengehäuses (4) eingreift.
- Abwasserkreiselpumpe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Haltevorsprünge (17) an den am Pumpengehäuse (4) vorgesehenen Abstützfüßen (7) ausgebildet sind.
- Abwasserkreiselpumpe nach einem der Ansprüche 1 bis 8, dadurchgekennzeichnet, dass jeder Randabschnitt (8 a) der Schneidplatte (8) mit einem Montageloch (21) versehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20114891U DE20114891U1 (de) | 2001-09-10 | 2001-09-10 | Abwasserkreiselpumpe |
DE20114891U | 2001-09-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1300594A1 true EP1300594A1 (de) | 2003-04-09 |
EP1300594B1 EP1300594B1 (de) | 2009-10-21 |
Family
ID=7961507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020020035 Expired - Lifetime EP1300594B1 (de) | 2001-09-10 | 2002-09-06 | Abwasserkreiselpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1300594B1 (de) |
DE (2) | DE20114891U1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005052378A1 (en) * | 2003-11-14 | 2005-06-09 | Weir Minerals Europe Limited | Pump insert and assembly |
CN103382939A (zh) * | 2012-05-04 | 2013-11-06 | 格兰富控股联合股份公司 | 污水泵 |
RU2534193C2 (ru) * | 2009-12-30 | 2014-11-27 | Грундфос Менеджмент А/С | Погружной насос |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2513588A (en) * | 2013-04-30 | 2014-11-05 | Redrock Machinery Ltd | Improvements in and relating to slurry pumps |
DE202013009716U1 (de) * | 2013-11-29 | 2014-07-30 | Wilo Se | Motorschneidpumpe |
DE102014003096A1 (de) | 2014-03-11 | 2015-09-17 | Homa Pumpenfabrik Gmbh | Hebeanlage für Abwasser |
DE102016225920A1 (de) * | 2016-12-21 | 2018-06-21 | KSB SE & Co. KGaA | Kreiselpumpe mit einer Zerkleinerungsanordnung |
CN110541830B (zh) * | 2019-08-28 | 2020-11-24 | 中国计量大学 | 一种双口环密封的自吸排污泵 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143993A (en) * | 1976-03-26 | 1979-03-13 | Albert Blum | Suction pump with rotatable flow retaining and repelling element |
US4402648A (en) * | 1981-08-31 | 1983-09-06 | A. O. Smith Harvestore Products, Inc. | Chopper pump |
DE3640813A1 (de) * | 1986-05-16 | 1987-11-26 | Emu Unterwasserpumpen Gmbh | Unterwasser-kreiselpumpe |
EP0395604A1 (de) * | 1989-04-27 | 1990-10-31 | ITT Flygt Aktiebolag | Kreiselpumpe |
US5516261A (en) * | 1993-11-15 | 1996-05-14 | Wilo Gmbh | Unchokable centrifugal pump |
DE19543916A1 (de) * | 1994-11-28 | 1996-05-30 | Haeny & Cie Ag | Kreiselpumpe für mit Feststoffanteilen belastete Abwässer |
DE19834815A1 (de) * | 1998-08-01 | 2000-02-10 | Orpu Gmbh | Pumpe mit einer Schneideinrichtung zum Fördern eines mit festen Bestandteilen vermischten Fördermediums |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3650481A (en) | 1971-04-01 | 1972-03-21 | Hydr O Matic Pump Co | Grinder pump |
US4108386A (en) | 1977-04-13 | 1978-08-22 | Mcneil Corporation | Grinder pump |
-
2001
- 2001-09-10 DE DE20114891U patent/DE20114891U1/de not_active Expired - Lifetime
-
2002
- 2002-09-06 EP EP20020020035 patent/EP1300594B1/de not_active Expired - Lifetime
- 2002-09-06 DE DE50213938T patent/DE50213938D1/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143993A (en) * | 1976-03-26 | 1979-03-13 | Albert Blum | Suction pump with rotatable flow retaining and repelling element |
US4402648A (en) * | 1981-08-31 | 1983-09-06 | A. O. Smith Harvestore Products, Inc. | Chopper pump |
DE3640813A1 (de) * | 1986-05-16 | 1987-11-26 | Emu Unterwasserpumpen Gmbh | Unterwasser-kreiselpumpe |
EP0395604A1 (de) * | 1989-04-27 | 1990-10-31 | ITT Flygt Aktiebolag | Kreiselpumpe |
US5516261A (en) * | 1993-11-15 | 1996-05-14 | Wilo Gmbh | Unchokable centrifugal pump |
DE19543916A1 (de) * | 1994-11-28 | 1996-05-30 | Haeny & Cie Ag | Kreiselpumpe für mit Feststoffanteilen belastete Abwässer |
DE19834815A1 (de) * | 1998-08-01 | 2000-02-10 | Orpu Gmbh | Pumpe mit einer Schneideinrichtung zum Fördern eines mit festen Bestandteilen vermischten Fördermediums |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005052378A1 (en) * | 2003-11-14 | 2005-06-09 | Weir Minerals Europe Limited | Pump insert and assembly |
EA008561B1 (ru) * | 2003-11-14 | 2007-06-29 | Виэр Минералз Юроп Лимитед | Насосная вставка и способ сборки насоса |
CN100432448C (zh) * | 2003-11-14 | 2008-11-12 | 韦尔矿产欧洲有限公司 | 泵***件和组件 |
AU2004293638B2 (en) * | 2003-11-14 | 2010-05-06 | Weir Minerals Europe Limited | Pump insert and assembly |
US8210808B2 (en) | 2003-11-14 | 2012-07-03 | Weir Minerals Europe Limited | Pump insert and assembly |
RU2534193C2 (ru) * | 2009-12-30 | 2014-11-27 | Грундфос Менеджмент А/С | Погружной насос |
CN103382939A (zh) * | 2012-05-04 | 2013-11-06 | 格兰富控股联合股份公司 | 污水泵 |
CN103382939B (zh) * | 2012-05-04 | 2016-06-22 | 格兰富控股联合股份公司 | 污水泵 |
Also Published As
Publication number | Publication date |
---|---|
DE20114891U1 (de) | 2001-11-15 |
DE50213938D1 (de) | 2009-12-03 |
EP1300594B1 (de) | 2009-10-21 |
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