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DE2614048A1 - Gear wheel type hydraulic pump - has rotating outer annular wheel with split spacer piece between gears - Google Patents

Gear wheel type hydraulic pump - has rotating outer annular wheel with split spacer piece between gears

Info

Publication number
DE2614048A1
DE2614048A1 DE19762614048 DE2614048A DE2614048A1 DE 2614048 A1 DE2614048 A1 DE 2614048A1 DE 19762614048 DE19762614048 DE 19762614048 DE 2614048 A DE2614048 A DE 2614048A DE 2614048 A1 DE2614048 A1 DE 2614048A1
Authority
DE
Germany
Prior art keywords
gears
parts
spring
separating element
suction
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.)
Pending
Application number
DE19762614048
Other languages
German (de)
Inventor
Friedrich Ing Grad Reichert
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 DE19762614048 priority Critical patent/DE2614048A1/en
Publication of DE2614048A1 publication Critical patent/DE2614048A1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-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
    • F04C2/101Rotary-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 a crescent-shaped filler element, located between the inner and outer intermeshing members

Landscapes

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

Abstract

The pump has an outer wheel with gear teeth on the inside. This meshes with a pinion on the inside of the outer wheel whose centre is offset from that of the outer wheel. The outer wheel is driven by a chain or gear drive from outside. The twisting moment produced by this is taken up by radial and axial bearings on the pump flange. A spacer piece between the two gears on the side opposite to that on which they mesh is constructed in two halves (a, b) which spigot together and are forced apart by a spring to fill the gap and keep the gears in mesh. This provides automatic compensation for wear and improves the pump performance.

Description

Gegenstand der Erfindung:Subject of the invention:

Zahnradpumpe mit Jnnenverzahnung und umlaufendem Gehäuse Das Patent ist gekennzeichnet durch: 1. Die Jnnenverzahnung erlaubt, daß die Pumpe direkt am Gehäuse angetrieben werden kann.Gear pump with internal gearing and rotating housing The patent is characterized by: 1. The internal gearing allows the pump to be connected directly to the Housing can be driven.

2. Durch die Jnnenverzahnung läßt sich auf der dichtenden Zahnseite ein Überdeckungsgrad # von über 2 erreichen, was einen besseren Wirkungsgrad ergibt und höhere Drücke zuläßt.2. The internal toothing allows the sealing tooth side achieve a degree of coverage # of over 2, which results in a better degree of efficiency and allows higher pressures.

3. Bei dieser Konstruktion ist es möglich, durch Anfedern der beiden Schalenhälften a u. b eine absolute Dichtheit ( auf der Pumpseite der Zahnräder ) zu erreichen, was ebenfalls einen besseren Wirkungsgrad und höhere Drücke ermöglicht. Dadurch, daß beide Schalenhälften mit dem entsprechenden Betriebsaruck links und rechts belastet sind, ist der Anpreßdruck nur von der Druckfeder abhangiO, sodaß die Reibung auf ein Itinimum herabgesetzt werden kann. Außerdem ist bei dieser Konstruktion kein. Verschleiß möglich, weil die beiden Schalenhälften auch bei Abnützung immer gleichmäßig an die Zahnköpfe anfedern. Durch die Führungsnut wird der Ansaugraum vom Druckraum getrennt.3. With this construction it is possible by springing the two Shell halves a and b an absolute tightness (on the pump side of the gears ), which also enables better efficiency and higher pressures. The fact that both shell halves with the corresponding operating jerk on the left and are loaded on the right, the contact pressure is only dependent on the compression spring, so that the friction can be reduced to an absolute minimum. Also with this construction no. Wear possible because the two shell halves always wear out Spring evenly onto the tooth tips. The suction space becomes through the guide groove separated from the pressure chamber.

4. Nach dem gleichen Prinzip wie in 3. erfolgt die Dichtung nach der Seite. Auch hier wird die Dic.ltscheibe c; über 2 Federn an die Stirnseite der Zahnräder angefedert, mit Druckausgleich von der Rüciseite. Auch hier wird über die Führungsnut der Ansaugraum vom Druckraum getrennt. Der einlaß bzw.4. According to the same principle as in 3. the seal is carried out according to the Page. Here, too, the Dic.lt disc is c; via 2 springs on the face of the gears sprung, with pressure compensation from the back. Here too, the guide groove is used the suction chamber is separated from the pressure chamber. The inlet or

Auslaß erfolgt stirnseitig über den Befestigungsflansch bei d /- e . An diesem ist auch das umlaufende Gehäuse über Wälzlager aufgenommen, während das Jnnenrad ebenfalls wälzgelagert auf einer im Achsabstand exzentrisch gelagerten Welle sich dreht, die in Befestigungsflansch aufgenommen und über einen Pass-Stift gesichert ist. Der Pass-Stift f sichert die Dicht scheibe gegen Verdrehung. The outlet is at the front via the mounting flange at d / - e. The circumferential housing is also held on this via roller bearings, while the inner wheel also rotates on roller bearings on a shaft which is eccentrically mounted at the center distance, which is received in the mounting flange and secured by a dowel pin. The dowel pin f secures the sealing washer against rotation.

Zusammenfassung der aus dieser Konstruktion/ergebenden Vorteile gegenüber den üblichen Ausführungen von Zahnradpumpen: 1. Besserer Wirkungsgrad 2. Erreichung höherer Drucke, als sie bis jetzt bei Zahnradpumpen üblich und erreichbar sind. Summary of the advantages resulting from this construction / compared to the usual designs of gear pumps: 1. Better efficiency 2. Achievement higher pressures than are customary and achievable up to now with gear pumps.

3. Lange Lebensdauer, weil die federnden Lichtschalen und die Dichtscheibe ebenfalls gefedert, jeden entstehenden Verschleiß wieder ausgleichen.3. Long service life because of the resilient light shells and the sealing washer also sprung to compensate for any wear that occurs.

4. Das umlaufende Gehäuse erlaubt einfache Montage und Einbauverhältnisse.4. The surrounding housing allows easy assembly and installation.

L e e r s e i t eL e r s e i t e

Claims (1)

Ergänzung für Patentanmeldung: P 26 14 048.7 Patentansprüche: Oberbegriff Jnnenverzahnte Hydraulikpumpe bzwO. Hydraulikmotor mit umlaufendem und direkt angetriebenem Gehäuse, sowie selbstätiger Nachstellung bei Abnützung.Supplement for patent application: P 26 14 048.7 Patent claims: preamble Internally toothed hydraulic pump or Hydraulic motor with rotating and directly driven Housing, as well as automatic adjustment when worn. Kennzeichnende Teile : 1. Umlaufendes Gehäuse.Characteristic parts: 1. All-round housing. Das innenverzahnte Gehäuse wird direkt mittels Keilriemen, Treibriemen, Kette oder Zahnradgetriebe angetrieben. Das hierbei entstehende Kippmoment wird mittels Druck- u. Radiallager über den Flansch aufgenommen0 Diese Anordnung ermöglicht hinsichtlich der Befestigung EinlochmontageO 20. Geteiltes und angefedertes Trennelement. The internally toothed housing is mounted directly by means of V-belts, drive belts, Chain or gear driven. The resulting tilting moment is absorbed by means of pressure and radial bearings via the flange0 This arrangement enables with regard to the fastening, single-hole installationO 20. Split and spring-loaded separating element. Das Trennelement a/b, welches den Raum auf der nichteingreifenden Seite der Zahnräder in einen Ansaug-bzwO Druckraum d/e teilt, ist zweiteilig ausgeführt, sodaß mittels Druckfeder beide Teile auseinanderfedern und somit auch bei Abnützung der Zahnkopfkreise die Dichtung gewährlöistet bleibt Die Trennung von Ansaug-und Druckraum über das geteilte Trennelement wird durch Jneinandergreifen beider Teile ermöglicht. Über diese Führungsnut sind gleichzeitig beide Teile des Trennelements zueinander fixiert. The dividing element a / b, which divides the space on the non-interfering Side of the gears divides into a suction or pressure chamber d / e, is designed in two parts, so that both parts spring apart by means of a compression spring and thus also when worn of the tooth tip circles the seal is guaranteed The separation of suction and The pressure space above the divided separating element is created by engaging the two parts enables. Both parts of the separating element are at the same time via this guide groove fixed to each other. fO Angefederter Seitenflansch.fO Spring-loaded side flange. Die sellbstregulierende Dichtung gegen Abnützung der Stirnseiten wird gewährleistet durch Anfedern des Flansches c, welcher gleichzeitig über Passstift f die Lage des Trennelements a/b fixiert, Auch hierbei erfolgt die Trennung von Ansaug- und Druckraum über die Führungsnut. The self-regulating seal against wear on the front sides is ensured by springing the flange c, which at the same time has a dowel pin f the position of the separating element a / b is fixed. Here, too, the separation of Suction and pressure chamber via the guide groove.
DE19762614048 1976-04-01 1976-04-01 Gear wheel type hydraulic pump - has rotating outer annular wheel with split spacer piece between gears Pending DE2614048A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762614048 DE2614048A1 (en) 1976-04-01 1976-04-01 Gear wheel type hydraulic pump - has rotating outer annular wheel with split spacer piece between gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762614048 DE2614048A1 (en) 1976-04-01 1976-04-01 Gear wheel type hydraulic pump - has rotating outer annular wheel with split spacer piece between gears

Publications (1)

Publication Number Publication Date
DE2614048A1 true DE2614048A1 (en) 1977-10-06

Family

ID=5974180

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762614048 Pending DE2614048A1 (en) 1976-04-01 1976-04-01 Gear wheel type hydraulic pump - has rotating outer annular wheel with split spacer piece between gears

Country Status (1)

Country Link
DE (1) DE2614048A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213746A (en) * 1977-12-08 1980-07-22 Karl Eickmann Internal gear hydraulic device with balancing recesses in the housing and crescent shaped separation member
FR2468010A1 (en) * 1979-10-19 1981-04-30 Eckerle Otto Gmbh & Co INNER DENTURE GEAR MACHINE
DE2943768A1 (en) * 1979-10-30 1981-05-14 Breinlich, Richard, Dr., 7120 Bietigheim-Bissingen Gear type hydraulic pump or motor - has inserts with passages between chambers to equalise pressures for higher loads and efficiencies
DE3542734A1 (en) * 1984-12-14 1986-06-26 Voest-Alpine Ag, Linz Internal-gear pump
DE3939649A1 (en) * 1989-11-30 1991-01-17 Daimler Benz Ag INTERNAL GEAR PUMP FOR HYDRAULIC OPERATING EQUIPMENT
US5690481A (en) * 1993-10-29 1997-11-25 Eckerle Industrie-Elektronik Gmbh Internal-gear machine having a divided filling portion

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213746A (en) * 1977-12-08 1980-07-22 Karl Eickmann Internal gear hydraulic device with balancing recesses in the housing and crescent shaped separation member
FR2468010A1 (en) * 1979-10-19 1981-04-30 Eckerle Otto Gmbh & Co INNER DENTURE GEAR MACHINE
DE2943768A1 (en) * 1979-10-30 1981-05-14 Breinlich, Richard, Dr., 7120 Bietigheim-Bissingen Gear type hydraulic pump or motor - has inserts with passages between chambers to equalise pressures for higher loads and efficiencies
DE3542734A1 (en) * 1984-12-14 1986-06-26 Voest-Alpine Ag, Linz Internal-gear pump
DE3939649A1 (en) * 1989-11-30 1991-01-17 Daimler Benz Ag INTERNAL GEAR PUMP FOR HYDRAULIC OPERATING EQUIPMENT
US5690481A (en) * 1993-10-29 1997-11-25 Eckerle Industrie-Elektronik Gmbh Internal-gear machine having a divided filling portion

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