HU181561B - Stator for single-spindle screw pump - Google Patents
Stator for single-spindle screw pump Download PDFInfo
- Publication number
- HU181561B HU181561B HU801785A HU178580A HU181561B HU 181561 B HU181561 B HU 181561B HU 801785 A HU801785 A HU 801785A HU 178580 A HU178580 A HU 178580A HU 181561 B HU181561 B HU 181561B
- Authority
- HU
- Hungary
- Prior art keywords
- stator
- sleeve
- pressure
- pump
- screw pump
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 229920001967 Metal rubber Polymers 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Die Erfindung bezieht sich auf einen verbesserten Stator fuer einspindelige Schraubenpumpen. Im Sinne der Erfindung besitzt der Stator Huelsenabschnitte, deren Aussenteil aus einem kombinierten Material aus Metall und Elastomer hergestellt ist und der ueber eine gewisse Starrheit verfuegt, so dass nach Einfuehren des aus Huelsenabschnitten in entsprechender Laenge zusammengestellten Stators in einer Metallhuelse ein beliebiger Gegendruck aufgebracht werden kann. Nach einem weiteren Merkmal der Erfindung ist der Hohlraum, der entsprechend der Gewindesteigung des Huelsenabschnittes verlaeuft, an eine Differentialpumpe angeschlossen, die v. dem im Druckraum der Pumpe herrschenden Druck gesteuert wird. Durch diesen automatisch aufgebrachten Druck wird das im Huelsenabschnitt vorhandene Gewindeprofil deformiert und ein Verschleiss an der Innenkontur korrigiert bzw. ausgeglichen.The invention relates to an improved stator for one-spindle screw pumps. For the purposes of the invention, the stator has Huelsenabschnitte whose outer part is made of a combined material of metal and elastomer and over a certain rigidity, so that after introduction of the compiled from Huelsenabschnitten in a corresponding length stator in a Metallhuelse any back pressure can be applied , According to a further feature of the invention, the cavity, which proceeds in accordance with the thread pitch of the Huelsenabschnittes, connected to a differential pump, the v. the pressure prevailing in the pressure chamber of the pump pressure is controlled. By means of this automatically applied pressure, the thread profile present in the Huelsenabschnitt is deformed and a wear on the inner contour corrected or compensated.
Description
BudapestBudapest
Állórész egyorsós csavarszivattyúhozStator for single screw screw pump
A találmány egyorsós csavarszivattyú állórészére vonatkozik, amely a jelenleg ismert állórészek tökéletesítését szolgálja.The present invention relates to a stator for a single spindle screw pump which serves to improve the stator currently known.
Ismeretesek olyan csavarszivattyúk, illetőleg olyan csavarszivattyú állórészek, ahol az állórészek a csavarszivattyúhoz beépíthető formában kerülnek kivitelezésre és ezen részek egymáshoz illesztett menetprofillal rendelkező üreges hüvelyszeletekkel rendelkeznek. Valamennyi hüvelyszelet belseje elasztikus béléssel van ellátva. A bélések a hüvelyszeletek oldallapjaira kinyúlnak és azokat legalább részben fedik. Az oldallapokra kinyúló bélésrészek saját anyagukból kiképzett alakos tömítő profilokkal rendelkeznek. Ezen hüvelyszeletek egymáshoz képest a belső üreges menetprofil menetemelkedésének megfelelően tájoló tüskék útján vannak tájolva. Ez a műszaki megoldás azzal az előnnyel jár, hogy az egyes hüvelyszeletekből, mint építőelemekből tetszés szerinti hoszszúságú állórész szerelhető össze. Ennek az a fő előnye, hogy az előre, akár tömeggyártási szinten is olcsón előállított kis tömegű alkatrészekből annyi szerelhető össze, amennyire szükség van ahhoz, hogy a szivattyú nyomómagasságához kellő számú kamra legyen az említett menetes profilokból 20 kialakítható. Az előzőekben ismertetett megoldás azonban nem ad kellő biztosítékot a rés-veszteség csökkentésére, valamint az üzemszerű használat mellett előálló kopások kellően nem ellensúlyozhatok.It is known to use screw pumps, or screw pump stator parts, in which the stator parts are implemented in a form that can be integrated with the screw pump and have hollow sleeve sections with threaded profiles. The inside of each sleeve slice is provided with an elastic lining. The linings extend to the sides of the sleeve slices and at least partially overlap them. The lining portions projecting to the side panels have molded sealing profiles of their own material. These sleeve slices are oriented relative to one another by orienting pins in accordance with the thread pitch of the internal hollow thread profile. This technical solution has the advantage that the individual sleeve sections can be assembled into stator of any length as building blocks. The main advantage of this is that it is possible to assemble as many low-cost components as possible from the pre-fabricated low-mass components, even at the mass production level, the number of chambers 20 required for forming the pump head. However, the solution described above does not provide sufficient protection to reduce gap loss, and wear and tear during normal use cannot be sufficiently offset.
Találmányunk elé azt a célt tűztük ki, hogy olyan állórészt 25 hozzunk létre egyorsós csavarszivattyúkhoz, amely az előzőekben említett hátrányokkal nem rendelkezik, tehát további lehetőségek vannak biztosítva a résveszteség csökkentésére, valamint az üzemszerű használat mellett beállott kopások ellensúlyozására. 30It is an object of the present invention to provide a stator 25 for single-spindle screw pumps which does not have the aforementioned disadvantages, thus providing further possibilities for reducing gap loss and for compensating wear during normal use. 30
A kitűzött célnak olyan állórésszel teszünk eleget, amelynek oly hüvelyszelete van, amelynek külső része fém elasztomer kombinációjú anyagból van előállítva és amelynek szilárdsága bizonyos merevséget megenged, így a szeletekből 5 összeállított megfelelő hosszúságú állórészt fémhüvelybe illesztve, tetszés szerinti ellennyomás hozható létre. A találmány szerinti állórész egy előnyös kiviteli alakja azzal jellemezhető, hogy a hüvelyszelet menetemelkedést követő üreges részébe a szivattyú nyomóterében uralkodó nyomással 10 vezérelt differenciál dugattyú van bekötve, amelynek alkalmazásával automatizáltan hozható létre a korrekciókhoz szükséges túlnyomás.This object is achieved by a stator having a sleeve slit, the outer part of which is made of a combination of a metal elastomer and having a certain degree of rigidity, so that a stator of appropriate length of the slices is inserted into a metal sleeve to produce any counterpressure. A preferred embodiment of the stator according to the invention is characterized in that a differential piston 10, controlled by the pressure prevailing in the pump pressure space, is connected to the hollow portion of the sleeve slope following the pitch, which automatically creates the overpressure required for corrections.
Találmányunk szerinti műszaki megoldást részleteiben egy előnyös kiviteli alak kapcsán rajzmellékleten ismertet15 jük, ahol az 1. ábra egy állórész hüvelyszeletének elölnézetét, a 2. ábra pedig az 1. ábra metszetét, a menetemelkedést követően mutatja be. Az 1 hüvelyszelet külső felülete a kiviteli alaknál kör, de az lehet egyéb, a körtől eltér® alakzat is. Az 1 hüvelyszelet belső ürege 2 menetprofilt tartalmaz, amely 5 elasztikus anyagú béléssel van ellátva. Az 5 elasztikus bélés a szivattyú nagyságára jellemző egyenletes falvastagsággal burkolja a belső profilt. Az említett bélés oly módon van kialakítva, hogy a 2 menetprofil szélein 6 illesztő tagok vannak kialakítva, amelyek tömítési célokat szolgálnak.Detailed Description of the Invention The technical solution of the present invention is described in more detail in the accompanying drawings, in which: Figure 1 is a front view of a stator sleeve slice, and Figure 2 is a sectional view of Figure 1, after a pitch. The outer surface of the sleeve slice 1 is circular in the embodiment, but it may also be other shape than the circle. The inner cavity of the sleeve section 1 comprises a thread profile 2 provided with an elastic material lining 5. The elastic liner 5 encloses the internal profile with a uniform wall thickness typical of the size of the pump. Said liner is formed in such a way that at the edges of the thread profile 2 there are formed members 6 which serve sealing purposes.
Az így kialakított hüvelyszelet egymáshoz illesztését és tájolását a belső menetprofilt, a tömítőalakzaton túl a homlokfelületen kialakított 3, 4 vezető peremek biztosítják.The internal thread profile and the leading flanges 3, 4 on the front face, in addition to the sealing configuration, ensure the alignment and orientation of the formed sleeve slice.
A hüvelyszeletekből összeállított megfelelő hosszúságú állórész fémcsőbe illeszthető és az említett hüvelyszeletekA stator of appropriate length, made up of sleeve slices, can be inserted into a metal tube and said sleeve slices
-11X1561 menetemelkedését követő üregben tetszés szerinti nyomás hozható létre, amelynek következtében a deformálódott menetprofil korrigálja a belül lekopott anyaghiányokat.In the cavity following the pitch of the -11X1561 thread, any pressure can be created, whereby the deformed thread profile corrects the material defects worn inside.
Claims (3)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU801785A HU181561B (en) | 1980-07-17 | 1980-07-17 | Stator for single-spindle screw pump |
| DE19813126988 DE3126988A1 (en) | 1980-07-17 | 1981-07-08 | Stator for single-worm screw pumps |
| IT22827/81A IT1167465B (en) | 1980-07-17 | 1981-07-09 | STATIONARY PART OF A SCREW PUMP, WITH SINGLE SPINDLE |
| CS815350A CS238373B2 (en) | 1980-07-17 | 1981-07-13 | Single-screw eccentric pump stator |
| DD81231757A DD202924A5 (en) | 1980-07-17 | 1981-07-14 | STATOR FOR SPINDLE SCREW PUMPS |
| GB8121797A GB2081812B (en) | 1980-07-17 | 1981-07-15 | Stationary part for single-spindle screw pump |
| FR8114017A FR2487017B1 (en) | 1980-07-17 | 1981-07-17 | STATOR FOR SINGLE SCREW PUMP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU801785A HU181561B (en) | 1980-07-17 | 1980-07-17 | Stator for single-spindle screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HU181561B true HU181561B (en) | 1983-10-28 |
Family
ID=10956188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU801785A HU181561B (en) | 1980-07-17 | 1980-07-17 | Stator for single-spindle screw pump |
Country Status (7)
| Country | Link |
|---|---|
| CS (1) | CS238373B2 (en) |
| DD (1) | DD202924A5 (en) |
| DE (1) | DE3126988A1 (en) |
| FR (1) | FR2487017B1 (en) |
| GB (1) | GB2081812B (en) |
| HU (1) | HU181561B (en) |
| IT (1) | IT1167465B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710930A1 (en) * | 1987-04-01 | 1988-10-20 | Gd Anker Gmbh & Co Kg | Eccentric spiral pump |
| DE3820483A1 (en) * | 1988-06-16 | 1989-12-21 | Stihl Maschf Andreas | PUMP FOR VISCOSE LIQUIDS, ESPECIALLY LUBRICATING OIL PUMP |
| AT401089B (en) * | 1988-09-30 | 1996-06-25 | Gd Anker Gruber Duebel Anker G | Eccentric screw pump |
| GB2244517B (en) * | 1990-05-31 | 1994-05-04 | Mono Pumps Ltd | Helical gear pump and stator |
| US5171138A (en) * | 1990-12-20 | 1992-12-15 | Drilex Systems, Inc. | Composite stator construction for downhole drilling motors |
| CA2543554C (en) | 2003-10-27 | 2010-03-09 | Dyna-Drill Technologies, Inc. | Asymmetric contouring of elastomer liner on lobes in a moineau style power section stator |
| US7407372B2 (en) * | 2004-05-14 | 2008-08-05 | Robbins & Myers Energy Systems L.P. | Progressing cavity pump or motor |
| DE102004038477B3 (en) | 2004-08-07 | 2005-10-06 | Netzsch-Mohnopumpen Gmbh | Cavity Pump |
| US7517202B2 (en) | 2005-01-12 | 2009-04-14 | Smith International, Inc. | Multiple elastomer layer progressing cavity stators |
| US9393648B2 (en) | 2010-03-30 | 2016-07-19 | Smith International Inc. | Undercut stator for a positive displacment motor |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2621605A (en) * | 1945-10-12 | 1952-12-16 | Clayton Mark & Company | Pump |
| GB800154A (en) * | 1955-09-30 | 1958-08-20 | Ahmad Aziz | Improvements in or relating to rotary pumps or motors |
| DE1553199C3 (en) * | 1966-03-15 | 1974-03-07 | Karl Dipl.-Ing. 7024 Bernhausen Schlecht | Adjustable stator for an eccentric screw pump |
| DE1653910A1 (en) * | 1967-06-09 | 1971-10-14 | Seidl Wilhelm Dipl Ing | Device for axially lining up several stators in eccentric screw pumps |
| DE2161116C3 (en) * | 1971-12-09 | 1979-09-06 | Moeller, Heinrich, 4962 Obernkirchen | Housing insert for eccentric screw pumps |
| DE7146795U (en) * | 1971-12-13 | 1972-03-23 | Vibrastop Gummimetallverbindungen Kaechele W | ADJUSTABLE STATOR |
| US3912426A (en) * | 1974-01-15 | 1975-10-14 | Smith International | Segmented stator for progressive cavity transducer |
| DE2408186A1 (en) * | 1974-02-20 | 1975-08-21 | Lonza Werke Gmbh | Eccentric pump with screw rotor and stator - has cavities between stator and housing |
| DE2512792A1 (en) * | 1975-03-22 | 1976-09-30 | Gummi Jaeger Kg Gmbh & Cie | Cover of eccentric worm pump stator - is of rubber or elastomer and of greater Shore hardness than stator |
| FR2349729A1 (en) * | 1976-04-27 | 1977-11-25 | Tiraspolsky Wladimir | Hydraulic machine with helical rotor - has internal and external helices assembled from separately machined longitudinal sections |
| DE2619751A1 (en) * | 1976-05-05 | 1977-11-17 | Mathis Fertigputz | Eccentric worm pump stator housing maintained under tension - has adjustable circumference and is covered with pressure transmitting vulcanised material |
| DE2817280A1 (en) * | 1978-04-20 | 1979-10-25 | Streicher Foerdertech | STATOR FOR ECCENTRIC SCREW PUMPS |
-
1980
- 1980-07-17 HU HU801785A patent/HU181561B/en unknown
-
1981
- 1981-07-08 DE DE19813126988 patent/DE3126988A1/en active Granted
- 1981-07-09 IT IT22827/81A patent/IT1167465B/en active
- 1981-07-13 CS CS815350A patent/CS238373B2/en unknown
- 1981-07-14 DD DD81231757A patent/DD202924A5/en not_active IP Right Cessation
- 1981-07-15 GB GB8121797A patent/GB2081812B/en not_active Expired
- 1981-07-17 FR FR8114017A patent/FR2487017B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2081812B (en) | 1984-08-08 |
| CS238373B2 (en) | 1985-11-13 |
| IT1167465B (en) | 1987-05-13 |
| DD202924A5 (en) | 1983-10-05 |
| FR2487017B1 (en) | 1987-12-24 |
| GB2081812A (en) | 1982-02-24 |
| DE3126988C2 (en) | 1987-06-25 |
| FR2487017A1 (en) | 1982-01-22 |
| DE3126988A1 (en) | 1982-02-25 |
| IT8122827A0 (en) | 1981-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| HU90 | Patent valid on 900628 |