EP0849469A3 - Rohrweiche für eine Zweizylinder-Dickstoffpumpe - Google Patents

Rohrweiche für eine Zweizylinder-Dickstoffpumpe Download PDF

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Publication number
EP0849469A3
EP0849469A3 EP97120146A EP97120146A EP0849469A3 EP 0849469 A3 EP0849469 A3 EP 0849469A3 EP 97120146 A EP97120146 A EP 97120146A EP 97120146 A EP97120146 A EP 97120146A EP 0849469 A3 EP0849469 A3 EP 0849469A3
Authority
EP
European Patent Office
Prior art keywords
sealing
tube
spring element
cutting ring
spectacle plate
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
Application number
EP97120146A
Other languages
English (en)
French (fr)
Other versions
EP0849469A2 (de
EP0849469B1 (de
Inventor
Hartmut Dr. Benckert
Hellmut Dipl.-Ing. Hurr
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.)
Putzmeister Concrete Pumps GmbH
Original Assignee
Putzmeister AG
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 Putzmeister AG filed Critical Putzmeister AG
Publication of EP0849469A2 publication Critical patent/EP0849469A2/de
Publication of EP0849469A3 publication Critical patent/EP0849469A3/de
Application granted granted Critical
Publication of EP0849469B1 publication Critical patent/EP0849469B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0084—Component parts or details specially adapted therefor
    • F04B7/0088—Sealing arrangements between the distribution members and the housing
    • F04B7/0096—Sealing arrangements between the distribution members and the housing for pipe-type distribution members

Landscapes

  • Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Die Erfindung bezieht sich auf eine Rohrweiche für eine Zweizylinder-Dickstoffpumpe insbesondere für eine Betonpumpe. Die Rohrweiche weist ein vor einer zylinderseitigen Brillenplatte (18) verschwenkbares Schwenkrohr (20) auf, das an der Brillenplatte (18) mit einem auf dem Rohrende des Schwenkrohrs (20) mit einem Bruchteil seiner Länge unter Bildung eines radialen Führungsspalts (52) axial geführten Schneidring (22) dichtend anliegt, welcher Schneidring (22) durch ein ringförmiges Dicht- und Federelement (50) auf die Brillenplatte (18) gedrückt ist, wobei das vom Druck des Fördermediums innenseitig beaufschlagte Dicht- und Federelement (50) an zwei einander zugewandten Dicht- und Stützflächen (46, 41) des Schwenkrohrs (20) und des Schneidrings (22) unter Überbrückung und Abdichtung des Führungsspalts (52) anliegt. Erfindungsgemäß weist das Dicht- und Federelement (50) einen ringförmig geschlossenen Rundschlauch aus kautschukelastischem Material auf, in dessen zentralem Kanal ein schraubenförmig gewundener, an seinen Enden offener Drahtring (64) aus steifelastischem Material angeordnet ist.
EP97120146A 1996-12-21 1997-11-18 Rohrweiche für eine Zweizylinder-Dickstoffpumpe Expired - Lifetime EP0849469B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19654023A DE19654023A1 (de) 1996-12-21 1996-12-21 Rohrweiche für eine Zweizylinder-Dickstoffpumpe
DE19654023 1996-12-21

Publications (3)

Publication Number Publication Date
EP0849469A2 EP0849469A2 (de) 1998-06-24
EP0849469A3 true EP0849469A3 (de) 1999-02-10
EP0849469B1 EP0849469B1 (de) 2003-04-23

Family

ID=7816015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120146A Expired - Lifetime EP0849469B1 (de) 1996-12-21 1997-11-18 Rohrweiche für eine Zweizylinder-Dickstoffpumpe

Country Status (3)

Country Link
EP (1) EP0849469B1 (de)
DE (2) DE19654023A1 (de)
ES (1) ES2195070T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934452A1 (de) * 1999-07-27 2001-02-01 Putzmeister Ag Silo
DE102004015181A1 (de) * 2004-03-25 2005-10-13 Putzmeister Ag Materialaufgabebehälter für eine Dickstoffpumpe
GB2416569A (en) 2004-07-27 2006-02-01 Clarke Uk Ltd Method of and a pump for pumping drill cuttings
CH704904B1 (de) 2011-05-06 2014-08-29 Bra Turbo Ing Ag Vorrichtung und Verfahren zur Entnahme von Material-Ablagerungen aus Gewässern.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614895A1 (de) * 1976-04-07 1977-10-20 Schlecht Karl Beton-rohrweiche
US4382752A (en) * 1979-02-01 1983-05-10 Karl Schlecht Twin-cylinder pump, in particular for pumping thick liquids
DE3414180A1 (de) * 1984-04-14 1985-10-24 Georg Prinzing GmbH & Co KG Betonformen- und Maschinenfabrik, 7902 Blaubeuren Dichtungseinrichtung fuer aneinanderstossende, zumindest etwa rohrfoermige bauteile, insbesondere fuer betonformteile
EP0450392A1 (de) * 1990-03-20 1991-10-09 Peter J. Balsells Schraubenfeder mit Elastomer mit hohlem Querschnitt

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049648B (de) * 1959-01-29
DD63238A (de) *
DE575348C (de) * 1930-03-15 1933-04-27 Hydrierwerke Akt Ges Deutsche Verfahren zur Geruchsverbesserung von Holzgeistoelen
DE1653456A1 (de) * 1966-10-28 1971-04-15 Alfred Heidt Kombinierte Kolben-Foerderpumpe mit Zusatzkompressor und Pressluft-Stroemungskanal,besonders fuer Mischbeton und halbfluessiges Foerdergut,das aus einer Mischung von festem und fluessigem Material besteht
US3897088A (en) * 1973-12-12 1975-07-29 Amp Inc Sealing boot
DE7614221U1 (de) * 1976-05-05 1976-10-07 Fa. Paul Hammerstein, 2000 Hamburg Vorrichtung zum abdichten von steckverbindungen von rohren
CH600206A5 (de) * 1976-05-18 1978-06-15 Meister H & Co
FR2385011A1 (fr) * 1977-03-23 1978-10-20 Joint Francais Joint d'etancheite composite
DE7910958U1 (de) * 1979-04-14 1980-06-19 Wibau Industrie Und Verwaltung Gmbh, 6466 Gruendau Aufgabebehaelter mit flankenschutz aus elastischem material als bestandteil von fahrbaren betonpumpen
US4310161A (en) * 1979-06-15 1982-01-12 Halliburton Services Inflatable packer element
DE3216057A1 (de) * 1982-04-29 1983-11-03 Siemens AG, 1000 Berlin und 8000 München Druckausgleichende dichtung, insbesondere fuer kabelgarnituren
US4586718A (en) * 1985-09-06 1986-05-06 Crane Co. Sealing assembly with floating gland means for rotatable shafts
DE3918879A1 (de) * 1989-06-09 1990-12-13 Wolfgang Werner Dichtung und dichtender dehnungsausgleicher bestehend aus einem oder mehreren dehnbaren und/oder verformbaren hohlkoerpern
US5294133A (en) * 1991-09-10 1994-03-15 The United States Of America As Represented By The Secretary Of The Army Fluid-filled O-ring for maintaining a seal under low temperature conditions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614895A1 (de) * 1976-04-07 1977-10-20 Schlecht Karl Beton-rohrweiche
US4382752A (en) * 1979-02-01 1983-05-10 Karl Schlecht Twin-cylinder pump, in particular for pumping thick liquids
DE3414180A1 (de) * 1984-04-14 1985-10-24 Georg Prinzing GmbH & Co KG Betonformen- und Maschinenfabrik, 7902 Blaubeuren Dichtungseinrichtung fuer aneinanderstossende, zumindest etwa rohrfoermige bauteile, insbesondere fuer betonformteile
EP0450392A1 (de) * 1990-03-20 1991-10-09 Peter J. Balsells Schraubenfeder mit Elastomer mit hohlem Querschnitt

Also Published As

Publication number Publication date
DE59709903D1 (de) 2003-05-28
EP0849469A2 (de) 1998-06-24
ES2195070T3 (es) 2003-12-01
EP0849469B1 (de) 2003-04-23
DE19654023A1 (de) 1998-06-25

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