DE3123051A1 - Sealing for joint for eccentric worm screw pump - Google Patents

Sealing for joint for eccentric worm screw pump

Info

Publication number
DE3123051A1
DE3123051A1 DE19813123051 DE3123051A DE3123051A1 DE 3123051 A1 DE3123051 A1 DE 3123051A1 DE 19813123051 DE19813123051 DE 19813123051 DE 3123051 A DE3123051 A DE 3123051A DE 3123051 A1 DE3123051 A1 DE 3123051A1
Authority
DE
Germany
Prior art keywords
joint
bevel wheel
sealed
diaphragm
bevel
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.)
Withdrawn
Application number
DE19813123051
Other languages
German (de)
Inventor
Max 7988 Wangen Streicher
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.)
ARMATEC FTS ARMATUREN
Original Assignee
ARMATEC FTS ARMATUREN
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 ARMATEC FTS ARMATUREN filed Critical ARMATEC FTS ARMATUREN
Priority to DE19813123051 priority Critical patent/DE3123051A1/en
Publication of DE3123051A1 publication Critical patent/DE3123051A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • 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
    • F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/18—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/848—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to sliding between parts of the cover

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)

Abstract

The bevel wheel (1) is sealed and secured on the rotor of an eccentric worm screw machine by means of shield pin (10). The bevel wheel (2) is fixed to the end of the tubular interconnection piece (3) and carries fitting rings (4) which can be detached by means of pins (11) and engage, by means of an annular projection, the outer part of a disc-shaped diaphragm (8) and thus retain this at the outer rim of the bevel wheel (2). Both bevel wheels are held together by a collar stud (5) in such a way that they can be pivoted relative to one another adjustably and to a limited extent, and are encircled by a protective sleeve (6) which at its ends in each case is sealed internally by an O ring. The interior of the joint is thus sealed on all sides, the diaphragm (8) being able, in the case of pressure fluctuations, to deform inwards into the frustoconical cavity formed by the bevel wheel (2). In order to be able to compensate even for high external pressures, the joint housing is filled with lubricant. Instead of the diaphragm it is also possible to provide a different volume-balancing sealing element. In spite of small balancing movements it is thus possible to balance even high pressures such as those which occur, in particular, in submerged pumps. <IMAGE>

Description

Beschreibung description

Bei Exzenterschneckenpumpen sind die kraftübertragenden, dem Rotor den erforderlichen Freiheitsgrad gebenden Teile immer noch ein Schwachpunkt, insbesondere dann, wenn das Gelenkgehause mit Druck beaufschlagt wird. Das ist oft nicht zu vermeiden, wenn z.B. keine Luft über die Stopfbüchse oder sonstiger Dichtelemente an der Wellendurchführung ins Medium gelangen darf, oder durch die Einbaulage der Pumpe, wenn sie z.B. als Tauchpumpe mit eintauchendem Stator und über der Flüssigkeit liegendem Medium des Antriebs ausgeführt ist.In eccentric screw pumps, the power-transmitting ones are the rotor The parts giving the required degree of freedom are still a weak point, in particular when the joint housing is pressurized. This is often unavoidable if, for example, there is no air through the stuffing box or other sealing elements on the shaft duct may get into the medium, or through the installation position of the pump, e.g. if it is used as a Submersible pump with submerged stator and the medium of the above the liquid Drive is executed.

Auch bei hohen Systemdrücken ist die Gelenkabdichtung ein nicht unerhebliches Problem und nur mit hohem technischen Aufwand, wenn überhaupt, lösbar.Even at high system pressures, the joint sealing is not insignificant Problem and only solvable with a high level of technical effort, if at all.

Die Erfindung hat sich deshalb die Aufgabe gestellt, die Nachteile zu beseitigen und damit auch gekichzeitig eine einfoche günstige Lösung für die Abdichtung zu erzielen, weil durch die erfindungsgemäße Lösung auch gleichzeitg die Anforderungen an die Gelenkdichtung geringer werden.The invention has therefore set itself the task of addressing the disadvantages to eliminate and thus also a simple cheap solution for the To achieve sealing because the solution according to the invention also at the same time the demands on the joint seal are lower.

Die Lösung der Aufgabe besteht darin, daß die Gelenke oder das Gelenk mit einem Druckausgleich versehen werden.The solution to the problem is that the joints or the joint be provided with a pressure equalization.

Da damit an den Dichtungen allseitig fast gleiche Drücke sind, sind die Anforderungen an die Gelenkdichtung gering und passen sich automatisch an alle Betriebsdrücke an. Das gleiche ist auch bei Vakuum im Gelenkgehöuse der Fall.Since this means that the pressures on all sides are almost the same the requirements on the joint seal are low and automatically adapt to all Operating pressures. The same is also the case with a vacuum in the joint housing.

Den Druckausgleich wird man einfach erzielen können, wenn man ein volumenönderndes Element einbaut, wie es beispielsweise ein Faltenbalg, Membranen oder Kolben sind.You can easily achieve pressure equalization if you have a Incorporates a volume-changing element, such as a bellows, membranes or pistons.

Zweckmäßigerweise wird man den Raum im Gelenk möglichst völlig mit Schmierstoff füllen, um die Bewegungen an der Membrane oder dergleichen Einrichtungen gering zu halten, so daß nur unvermeidbare Volumenänderungen sich im Gelenk z.B. durch Tempertaturschwankungen oder geringe Lufteinschlüsse die Ausgleichseinrichtungen beanspruchen.Appropriately, the space in the joint is as completely as possible Fill lubricant to the movements on the diaphragm or similar facilities to be kept low, so that only unavoidable changes in volume occur in the joint e.g. the compensation devices due to temperature fluctuations or small air pockets claim.

An einem Ausführungsbeispiel ist dargestellt: 1 + 2 Kegelräder als kraftschlüssige Übertragungsorgane 3 Verbundstück im Ausführungsbeispiel als Rohr ausgeführt, welches mit einer Querbohrung zur leichten Montage der Membrane versehen ist. Die Membrane kann aus dem Material bestehen, welches dem Fördermedium am besten entspricht und standhält.An exemplary embodiment shows: 1 + 2 bevel gears as non-positive transmission organs 3 composite piece in the embodiment as a tube executed, which is provided with a cross hole for easy assembly of the membrane is. The membrane can be made of the material that best suits the pumping medium corresponds and withstands.

4 Ringe, welche eine einfache Montage der Membrane durch Stifte erzielen.4 rings, which achieve a simple assembly of the membrane with pins.

5 Bolzen, welcher die Kegelradpaare zusammenhalten.5 bolts that hold the bevel gear pairs together.

6 Schutzhülsen als Gegenlager zu den als Abdichtung vorgesehenen O-Ringen 7 Scheibe, um ein Auswandern der O-Ringe zu verhindern Die Scheibe ermöglicht es, durch seine Anordnung an der höchsten Stelle bei aufrechter Montage das Schmiermittel zu fast 100% einzufüllen.6 protective sleeves as counter bearings for the O-rings provided as seals 7 Washer to prevent the O-rings from migrating The washer enables the lubricant due to its arrangement at the highest point when installed upright to be filled almost 100%.

8 Membrane als volumenönderndes Druckausgleichselement herstellbar aus allen erforderlichen Materialien.8 diaphragms can be produced as a volume-changing pressure compensation element from all the necessary materials.

9 O-Ringe als Gelenkabdichtung 10 Sicherungsstift für die Scheibe (7) und Sicherung gegen Verdrehen.9 O-rings as joint seals. 10 Safety pin for the washer (7) and secured against twisting.

Claims (5)

Abdichtung für Gelenk für Exzenterschneckenpumpe Patentansprüche rs ( l)) Gelenk für Pumpe oder Motor, bei welchem der Rotor einen Gang weniger aufweist, als der Stator, bei welcher wenigstens ein Gelenk vorhonden ist, um dem Rotor im Stator den erforderlichen Freiheitsgrad zu geben, dadurch gekennzeichnet, daß das oder die Gelenke mit Druckausgleich versehen sind. Seal for joint for eccentric screw pump patent claims rs (l)) Joint for pump or motor, in which the rotor has one gear less, than the stator, in which at least one joint is present, to the rotor in the To give stator the required degree of freedom, characterized in that the or the joints are provided with pressure compensation. 2) Nach Anspruch (1), daß der Druckausgleich mit volumenausgleichender Einrichtung erfolgt 2) According to claim (1) that the pressure equalization with volume equalizing Setup done 3) Nach Anspruch (1), daß der Druckausgleich durch Membrane, Faltenbalg oder Kolben erfolgt.3) According to claim (1) that the pressure equalization by membrane, Bellows or piston takes place. 4) Nach Anspruch (1), daß das Gelenk vollkommen mit Schmiermittel gefüllt ist. 4) According to claim (1) that the joint completely with lubricant is filled. 5) Nach Anspruch (3), die Membrane mit einem Ring geklemmt ist. 5) According to claim (3), the membrane is clamped with a ring.
DE19813123051 1981-06-11 1981-06-11 Sealing for joint for eccentric worm screw pump Withdrawn DE3123051A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813123051 DE3123051A1 (en) 1981-06-11 1981-06-11 Sealing for joint for eccentric worm screw pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813123051 DE3123051A1 (en) 1981-06-11 1981-06-11 Sealing for joint for eccentric worm screw pump

Publications (1)

Publication Number Publication Date
DE3123051A1 true DE3123051A1 (en) 1983-04-14

Family

ID=6134378

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813123051 Withdrawn DE3123051A1 (en) 1981-06-11 1981-06-11 Sealing for joint for eccentric worm screw pump

Country Status (1)

Country Link
DE (1) DE3123051A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312310A1 (en) * 1983-04-06 1984-10-11 Armatec FTS-Armaturen GmbH & Co KG, 7988 Wangen Eccentric spiral pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302725B (en) *
US2264728A (en) * 1940-04-23 1941-12-02 Jr George B Stillwagon Cover for universal joints
DE1261359B (en) * 1965-07-01 1968-02-15 Netzsch Maschinenfabrik Seal for a tooth coupling
DE7412447U (en) * 1974-07-11 Seeberger Kg
DE7501575U (en) * 1975-01-21 1976-07-29 Kirchner, Karl-Heinz, 5600 Wuppertal DESIGN GAME

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302725B (en) *
DE7412447U (en) * 1974-07-11 Seeberger Kg
US2264728A (en) * 1940-04-23 1941-12-02 Jr George B Stillwagon Cover for universal joints
DE1261359B (en) * 1965-07-01 1968-02-15 Netzsch Maschinenfabrik Seal for a tooth coupling
DE7501575U (en) * 1975-01-21 1976-07-29 Kirchner, Karl-Heinz, 5600 Wuppertal DESIGN GAME

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312310A1 (en) * 1983-04-06 1984-10-11 Armatec FTS-Armaturen GmbH & Co KG, 7988 Wangen Eccentric spiral pump

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee