DE102009010107A1 - Eccentric spiral pump for use in domestic waste water drainage system, has rotor provided with spiral-shaped or screw-shaped outer contour that is driven by drive motor, where outer surface of rotor is formed by rubber or flexible plastic - Google Patents
Eccentric spiral pump for use in domestic waste water drainage system, has rotor provided with spiral-shaped or screw-shaped outer contour that is driven by drive motor, where outer surface of rotor is formed by rubber or flexible plastic Download PDFInfo
- Publication number
- DE102009010107A1 DE102009010107A1 DE200910010107 DE102009010107A DE102009010107A1 DE 102009010107 A1 DE102009010107 A1 DE 102009010107A1 DE 200910010107 DE200910010107 DE 200910010107 DE 102009010107 A DE102009010107 A DE 102009010107A DE 102009010107 A1 DE102009010107 A1 DE 102009010107A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- eccentric screw
- pump according
- screw pump
- 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
- 229920001971 elastomer Polymers 0.000 title claims abstract description 15
- 229920002457 flexible plastic Polymers 0.000 title abstract 3
- 239000010840 domestic wastewater Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 4
- 230000002250 progressing effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 description 7
- 239000007769 metal material Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920001967 Metal rubber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F04C2/1075—Construction of the stationary member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Exzenterschneckenpumpe mit einem Rotor mit schneckenförmiger oder schraubenförmiger Außenkontur, der über eine Welle von einem Motor angetrieben ist und eine taumelnde Rotationsbewegung im Pumpenstator in einem Hohlraum ausübt, dessen innere Oberfläche eine schneckenförmige oder schraubenförmige Innenkontur aufweist.The The invention relates to an eccentric screw pump with a rotor snail-shaped or helical Outline, the over a shaft is driven by a motor and a tumbling rotary motion in the pump stator in a cavity exerts, the inner surface of a helical or helical Has inner contour.
Es sind Exzenterschneckenpumpen bekannt mit einem Rotor aus hartem Material, z. B. aus Metall, Keramik oder Hartkunststoff und mit flexiblem Stator aus einem Elastomer, wobei die exzentrische Bewegung zwischen Rotor und Stator dadurch erzielt wird, dass der Rotor starr mit der Antriebswelle verbunden ist und um seine Mittellinie rotiert, wobei der flexible Stator aus seiner Mittellage ausgelenkt wird und somit eine um die Mittellinie taumelnde Bewegung ausführt. Ferner sind Exzenterschneckenpumpen bekannt mit einem sogenannten „Rohrstator”, der aus einer Rohrkonstruktion mit einem darin formschlüssig befindlichen Elastomer oder aus einem rohrförmigen Bauteil aus einem Metall-Elastomer-Verbundmaterial besteht, wobei die gewendelt ausgeführte Oberfläche des Elastomers dem medienberührtenden Raum zugewandt ist. Der Rotor ist mit einer rotierenden Antriebswelle mit Hilfe eines flexiblen Biegestabes, einer Gelenkwelle oder einem ähnlich wirkenden Bauteil verbunden und führt innerhalb des starren Stators eine exzentrische Rotationsbewegung aus.It Progressing cavity pumps are known with a rotor made of hard Material, eg. As of metal, ceramic or hard plastic and with flexible stator made of an elastomer, wherein the eccentric movement between rotor and stator is achieved in that the rotor is rigid connected to the drive shaft and rotated about its center line, wherein the flexible stator is deflected from its central position and thus performs a tumbling motion around the midline. Further Progressing cavity pumps are known with a so-called "tube stator", which consists of a Pipe construction with a form-fitting located therein elastomer or from a tubular component consists of a metal-elastomer composite material, the coiled running surface of the elastomer to the media-contacting Room faces. The rotor is equipped with a rotating drive shaft by means of a flexible bending rod, a propeller shaft or a similar acting Component connected and leads within the rigid stator, an eccentric rotational movement out.
Aufgabe der Erfindung ist es, eine Exzenterschneckenpumpe mit besserem Wirkungsgrad und geringem Verschleiß bei einfacher und kostengünstiger Konstruktion zu schaffen.task The invention is an eccentric screw pump with better efficiency and low wear easier and cheaper Create construction.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Oberfläche des Statorhohlraumes von einem starren Material insbesondere von Stahl gebildet ist und, dass zumindest die äußere Oberfläche des Rotors von einem elastischen Material insbesondere von Gummi oder einem elastischen Kunststoff gebildet ist.These Task is inventively characterized solved, that the surface the stator cavity of a rigid material, in particular of steel is formed and that at least the outer surface of the rotor of an elastic Material in particular of rubber or an elastic plastic is formed.
Es wird eine Exzenterschneckenpumpe geschaffen mit verbesserter Pumpenkennlinie, insbesondere mit erhöhtem erzielbaren Förderdruck pro Pumpenstufe und steilerer Kennlinie. Eine solche Verdrängerpumpe wird besonders vorteilhaft in Anlagen zur Druckentwässerung von häuslichem Abwasser eingesetzt. Es wird eine Reduktion der Herstellungskosten durch Verringerung der Anzahl von Einzelteilen und vereinfachte Montage und durch die Möglichkeit der Verwendung von Standardkomponenten erreicht.It an eccentric screw pump is provided with improved pump characteristic, especially with increased achievable delivery pressure per pump stage and steeper characteristic. Such a positive displacement pump becomes particularly advantageous in systems for pressure drainage from domestic Sewage used. There will be a reduction in manufacturing costs By reducing the number of items and simplified Assembly and by the possibility the use of standard components.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen aufgeführt.advantageous Embodiments of the invention are listed in the subclaims.
Ein Ausführungsbeispiel ist in der Zeichnung schematisch in einem axialen Längsschnitt dargestellt und wird im Folgenden einschließlich Abwandlungen beschrieben.One embodiment is schematically in the drawing in an axial longitudinal section and will be described below, including modifications.
Eine rotierende Verdrängerpumpe vom Typ einer Exzenterschneckenpumpe besitzt eine rotierende Antriebswelle, einen aus einem elastischen Material bestehenden Rotor mit einer schraubenförmigen Außenkontur, der an mindestens einem Ende mit der Antriebswelle verbunden ist und einen im wesentlichen rohrförmigen Stator, dessen innere Oberfläche eine schraubenförmige Kontur aufweist. Hierbei besteht der Rotor aus einem starren Material, vorzugsweise aus Stahl.A rotating positive displacement pump of the type of eccentric screw pump has a rotating drive shaft, a rotor made of an elastic material with a helical Outline, which is connected at at least one end to the drive shaft and a substantially tubular Stator, whose inner surface a helical one Has contour. Here, the rotor consists of a rigid material, preferably made of steel.
Die
Verbindung zwischen der Antriebswelle
An
dem Ende der Antriebswelle
In
einer Ausgestaltung ist die Antriebswelle der Pumpe die Verlängerung
der Welle des Antriebsmotors
Vorzugsweise
ist die Rotor-Antriebswelleneinheit
Die
Verbindung zwischen der Antriebswelle
Der
Rotor
Je
nach gewählter
Verbindungstechnik für die
Verbindung zwischen Antriebswelle
Der
Rotor
Der
Stator
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910010107 DE102009010107B4 (en) | 2009-02-21 | 2009-02-21 | Cavity Pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910010107 DE102009010107B4 (en) | 2009-02-21 | 2009-02-21 | Cavity Pump |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102009010107A1 true DE102009010107A1 (en) | 2010-08-26 |
DE102009010107B4 DE102009010107B4 (en) | 2015-01-22 |
Family
ID=42356693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910010107 Active DE102009010107B4 (en) | 2009-02-21 | 2009-02-21 | Cavity Pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009010107B4 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012076099A3 (en) * | 2010-12-08 | 2013-05-30 | Robert Bosch Gmbh | Gear shaft assembly |
CN109578270A (en) * | 2018-12-05 | 2019-04-05 | 盐城世宏石油装备有限公司 | All-metal bridge type screw pump |
CN109611329A (en) * | 2019-02-19 | 2019-04-12 | 盐城世宏石油装备有限公司 | A kind of processing method of rubber rotor screw oil well pump and rubber rotor |
US10480506B2 (en) | 2014-02-18 | 2019-11-19 | Vert Rotors Uk Limited | Conical screw machine with rotating inner and outer elements that are longitudinally fixed |
CN113323883A (en) * | 2021-06-25 | 2021-08-31 | 刘龙 | Self-blockage-cleaning type sewage pump based on flexible pump body |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19501514A1 (en) * | 1995-01-19 | 1996-07-25 | Siekmann Fittings Gmbh & Co Kg | Spiralled rotor for pump on motor |
US6544015B1 (en) * | 1998-11-13 | 2003-04-08 | Wilhelm Kaechele Gmbh Elastomertechnik | Worm for an eccentric screw pump or a subsurface drilling motor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7192260B2 (en) * | 2003-10-09 | 2007-03-20 | Lehr Precision, Inc. | Progressive cavity pump/motor stator, and apparatus and method to manufacture same by electrochemical machining |
-
2009
- 2009-02-21 DE DE200910010107 patent/DE102009010107B4/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19501514A1 (en) * | 1995-01-19 | 1996-07-25 | Siekmann Fittings Gmbh & Co Kg | Spiralled rotor for pump on motor |
US6544015B1 (en) * | 1998-11-13 | 2003-04-08 | Wilhelm Kaechele Gmbh Elastomertechnik | Worm for an eccentric screw pump or a subsurface drilling motor |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012076099A3 (en) * | 2010-12-08 | 2013-05-30 | Robert Bosch Gmbh | Gear shaft assembly |
US10480506B2 (en) | 2014-02-18 | 2019-11-19 | Vert Rotors Uk Limited | Conical screw machine with rotating inner and outer elements that are longitudinally fixed |
US10962004B2 (en) | 2014-02-18 | 2021-03-30 | Vert Rotors Uk Limited | Synchronized conical screw compressor or pump |
CN109578270A (en) * | 2018-12-05 | 2019-04-05 | 盐城世宏石油装备有限公司 | All-metal bridge type screw pump |
CN109578270B (en) * | 2018-12-05 | 2023-10-31 | 盐城世宏石油装备有限公司 | All-metal gap bridge type screw pump |
CN109611329A (en) * | 2019-02-19 | 2019-04-12 | 盐城世宏石油装备有限公司 | A kind of processing method of rubber rotor screw oil well pump and rubber rotor |
CN113323883A (en) * | 2021-06-25 | 2021-08-31 | 刘龙 | Self-blockage-cleaning type sewage pump based on flexible pump body |
CN113323883B (en) * | 2021-06-25 | 2023-01-10 | 太谷县旭阳机械有限公司 | Self-blockage-cleaning type sewage pump based on flexible pump body |
Also Published As
Publication number | Publication date |
---|---|
DE102009010107B4 (en) | 2015-01-22 |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R084 | Declaration of willingness to licence |