DE9011156U1 - Gear pump for highly viscous liquids - Google Patents

Gear pump for highly viscous liquids

Info

Publication number
DE9011156U1
DE9011156U1 DE9011156U DE9011156U DE9011156U1 DE 9011156 U1 DE9011156 U1 DE 9011156U1 DE 9011156 U DE9011156 U DE 9011156U DE 9011156 U DE9011156 U DE 9011156U DE 9011156 U1 DE9011156 U1 DE 9011156U1
Authority
DE
Germany
Prior art keywords
gear pump
highly viscous
viscous liquids
opening
housing
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.)
Expired - Lifetime
Application number
DE9011156U
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE9011156U priority Critical patent/DE9011156U1/en
Publication of DE9011156U1 publication Critical patent/DE9011156U1/en
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
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps

Landscapes

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

Description

Zahnradpumpe für hochviskose FlüssigkeitenGear pump for highly viscous liquids

Die Förderung von hochviskosen Flüssigkeiten durch Zahnradpumpen 1st besonders schwierig, wenn das zu fördernde Medium keine Scteie«*firkun§ feesitzt. ®m mu6 deshalb alles versuchen, um Verschleiß an den st?llen sind 1m Gehäuse zu vermeiden. Jler ¥er=ächieiä an den Zahnflanken 1st gering, well an diesen überwiegend rollende Reibung «tstfcflüdet «md dis Drehzahl wegen der nur kleine« zul^rr*en Fördf^geschw1nd1gke1ten (cirka 0(f */sek) kleingcfialtfei .erden mS-EIn Hauptproblem 1st d1<t Vädichts»? ^er Lagerstellen. L>shr wichtig 1st auch eine leichte Zugängiichkeit zu dem Inneftraum der Pumpe, us feel ? -rscte^rtzung und Verharzung (nach längerem Stillstand) die Inneren Teile leicht reinigen zu können.The pumping of highly viscous liquids using gear pumps is particularly difficult if the medium to be pumped does not have a friction coefficient. Therefore, every effort must be made to avoid wear on the gears in the housing. The surface area on the tooth flanks is small because it is mainly rolling friction that occurs on these and the speed is limited due to the low permissible pumping speeds (approx. 0 ( f */sec). A major problem is the sealing of the bearing points. It is also very important to have easy access to the inside of the pump so that the internal parts can be easily cleaned in the event of corrosion and resinification (after a long period of downtime).

Die Figur 1 zeigt die Zahnradpumpe Im Schritt durch die Lagerungen. Das Zahnrad 1 auf der Antriebswelle 12 1st durch die Kegelrollenlager 4 und S radial und axial gei&gert. Dadurch kann das Zahnrad 1 mit geringem radialen und axialen Abstand Im Gehäuse 11 verschle1Bfre1 geführt werden. Die Kegelrollenlager 4 und 5 sind durch eine Kombination von Rlickfurdergewinde 6, Dichtring (beispielsweise 0 - oder Quadring) 7 und 8, Trennraum und S1mmerr1ng 10 gegen das zu fordernde Medium abgedichtet. Der Trennraum 9 1st mit Schmiermittel gefüllt und durch tin· öffnung 13 nach außen zugänglich. Sollte durch Verschleiß der Dichtringe 7 und 8 das Fördermedium 1n den Trennraum 9 eindringen, so tritt das Schmiermittel aus ditstm Raum durch dl· öffnung 13 aus. Dadurch kann man frühreUig einen Schaden erkennen und abstellen. Figure 1 shows the gear pump in a step through the bearings. The gear 1 on the drive shaft 12 is radially and axially supported by the tapered roller bearings 4 and 5. This allows the gear 1 to be guided in the housing 11 with a small radial and axial distance without wear. The tapered roller bearings 4 and 5 are sealed against the medium to be pumped by a combination of return thread 6, sealing ring (for example 0 or quad ring) 7 and 8, separation chamber and sealing ring 10. The separation chamber 9 is filled with lubricant and is accessible to the outside through an opening 13. If the pumped medium penetrates into the separation chamber 9 due to wear of the sealing rings 7 and 8, the lubricant escapes from this chamber through the opening 13. This allows damage to be detected and remedied early.

Die Figur 2 zeigt einen ax^len Schnitt durch das Gehäuse und die Zahnräder 1 und 2. Das Gehäuse 3 1st rotationssymmetrisch ausgebildet und enthält den Eintritt 16 und den Austritt 17 für das Fördermedium. Figure 2 shows an axial section through the housing and the gear wheels 1 and 2. The housing 3 is rotationally symmetrical and contains the inlet 16 and the outlet 17 for the conveying medium.

Claims (1)

a a aa a a PatentansprüchePatent claims Anspruch 1Claim 1 Zahnradpumpe für hochviskose Flüssigkeiten mit einseitiger Lagerung der Zahnräder 1 und 2 durch die Kegelrollenlager 4 und 5, dadurch gekennzeichnet, daß die Lagerung durch eine Kombination von RUckfUhrgewinde (6), Dichtringe (7) und (8), Trennraum (9) und Siwnerring (10) gegen das zu fördernde Medium abgedichtet 1st.Gear pump for highly viscous liquids with one-sided bearing of the gears 1 and 2 by the tapered roller bearings 4 and 5, characterized in that the bearing is sealed against the medium to be pumped by a combination of return thread (6), sealing rings (7) and (8), separating chamber (9) and sealing ring (10). Anspruch 2Claim 2 Zahnradpumpe nach Anspruch 1. dadurch gekennzeichnet, daS das Gehäuse 3 rotationssymmetrisch ausgebildet 1st, eine Öffnung (16) fUr den Eintritt und eine Öffnung (17) für den Austritt besitzt.Gear pump according to claim 1, characterized in that the housing 3 is rotationally symmetrical, has an opening (16) for the inlet and an opening (17) for the outlet.
DE9011156U 1990-07-28 1990-07-28 Gear pump for highly viscous liquids Expired - Lifetime DE9011156U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9011156U DE9011156U1 (en) 1990-07-28 1990-07-28 Gear pump for highly viscous liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9011156U DE9011156U1 (en) 1990-07-28 1990-07-28 Gear pump for highly viscous liquids

Publications (1)

Publication Number Publication Date
DE9011156U1 true DE9011156U1 (en) 1990-11-15

Family

ID=6856032

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9011156U Expired - Lifetime DE9011156U1 (en) 1990-07-28 1990-07-28 Gear pump for highly viscous liquids

Country Status (1)

Country Link
DE (1) DE9011156U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111218A1 (en) * 1991-04-07 1992-10-08 Troester Maschf Paul GEAR PUMP
DE4130312C1 (en) * 1991-09-12 1992-12-24 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De
DE4207088C1 (en) * 1991-09-12 1993-06-09 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De Feeder for high viscosity e.g. rubber - has sealed housing contg. two revolving toothed wheels with spiral flow bores which return leaked material back to feed gap
EP0599030A1 (en) * 1992-10-23 1994-06-01 Maag Pump Systems AG Gear pump and its uses
EP1653083B1 (en) * 2004-10-29 2017-09-06 Oerlikon Textile GmbH & Co. KG Gear pump with radial and axial support bearing

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493036A (en) * 1968-06-28 1970-02-03 Du Pont Gear pump and heating and cooling means therefor
US3554661A (en) * 1968-12-20 1971-01-12 Decatur Pump Co High temperature pump
EP0024024B1 (en) * 1979-08-10 1985-02-13 Hoechst Aktiengesellschaft Selflubricating gear pump
US4699575A (en) * 1986-02-12 1987-10-13 Robotics, Inc. Adhesive pump and it's control system
DE3714243A1 (en) * 1986-05-03 1987-11-19 Barmag Barmer Maschf Gear pump
DE8714764U1 (en) * 1987-11-06 1988-03-03 Motoren-Werke Mannheim AG, 6800 Mannheim Gear pump
DE3840487A1 (en) * 1987-12-25 1989-07-13 Eagle Ind Co Ltd GASKET FOR A CYLINDER SURFACE
DE3904589A1 (en) * 1988-02-17 1989-08-31 Freudenberg Carl Fa Seal

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493036A (en) * 1968-06-28 1970-02-03 Du Pont Gear pump and heating and cooling means therefor
US3554661A (en) * 1968-12-20 1971-01-12 Decatur Pump Co High temperature pump
EP0024024B1 (en) * 1979-08-10 1985-02-13 Hoechst Aktiengesellschaft Selflubricating gear pump
US4699575A (en) * 1986-02-12 1987-10-13 Robotics, Inc. Adhesive pump and it's control system
DE3714243A1 (en) * 1986-05-03 1987-11-19 Barmag Barmer Maschf Gear pump
DE8714764U1 (en) * 1987-11-06 1988-03-03 Motoren-Werke Mannheim AG, 6800 Mannheim Gear pump
DE3840487A1 (en) * 1987-12-25 1989-07-13 Eagle Ind Co Ltd GASKET FOR A CYLINDER SURFACE
DE3904589A1 (en) * 1988-02-17 1989-08-31 Freudenberg Carl Fa Seal

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-Buch: TRUTNOVSKY, Karl Prof.: Berührungsfreie Dichtungen. VDI-VERLAG GMBH DÜSSELDORF, 1964, S.226-249 *
MACHINE DESIGN, 19. Juni 1969, S.5-9 u.13-15 *
SIMRIT: Katalog Nr. 300, 0-Ringe, Ausg.Mai 1972, S.9-11 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111218A1 (en) * 1991-04-07 1992-10-08 Troester Maschf Paul GEAR PUMP
DE4130312C1 (en) * 1991-09-12 1992-12-24 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De
DE4207088C1 (en) * 1991-09-12 1993-06-09 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De Feeder for high viscosity e.g. rubber - has sealed housing contg. two revolving toothed wheels with spiral flow bores which return leaked material back to feed gap
EP0599030A1 (en) * 1992-10-23 1994-06-01 Maag Pump Systems AG Gear pump and its uses
US5549462A (en) * 1992-10-23 1996-08-27 Maag Pump Systems Ag Gear pump and its uses
EP1653083B1 (en) * 2004-10-29 2017-09-06 Oerlikon Textile GmbH & Co. KG Gear pump with radial and axial support bearing

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