EP1519044B1 - Rotary piston type pump, in particular for pumping particle loaded fluids - Google Patents

Rotary piston type pump, in particular for pumping particle loaded fluids Download PDF

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Publication number
EP1519044B1
EP1519044B1 EP04020942A EP04020942A EP1519044B1 EP 1519044 B1 EP1519044 B1 EP 1519044B1 EP 04020942 A EP04020942 A EP 04020942A EP 04020942 A EP04020942 A EP 04020942A EP 1519044 B1 EP1519044 B1 EP 1519044B1
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EP
European Patent Office
Prior art keywords
rotary pistons
pump
motors
pistons
rotary
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.)
Active
Application number
EP04020942A
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German (de)
French (fr)
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EP1519044A1 (en
Inventor
Heinz Deyen
Paul Krampe
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.)
Hugo Vogelsang Maschinenbau GmbH
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Hugo Vogelsang Maschinenbau GmbH
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Publication of EP1519044A1 publication Critical patent/EP1519044A1/en
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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
    • F04C15/0057—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
    • 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
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/126—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F04C2240/402—Plurality of electronically synchronised motors
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings

Definitions

  • the invention relates to a pump for the conveyance of liquids, of particle-laden liquids or fluids, comprising a pair of intermeshing multi-blade helical lobed rotary pistons, which in turn are driven by means of motors and stored in a pump housing with inlet and outlet.
  • Hydraulically driven pumps are known, which are used in particular when particle-laden liquids have to be pumped.
  • An essential feature of such pumps is the synchronization, which is essential for the pistons to work orderly. Constructively, this is reflected in a constant velocity gearbox, which must ensure the proper functioning of the rotary pistons.
  • Such pumps can be used without synchronous gearing and without synchronization, both in forward and in reverse operation, without causing interference.
  • Such pumps in connection with municipal multi-purpose vehicles having a front intake with hydraulic connection, where you can connect a hydraulic pump.
  • the pump is connected by means of a hose on the suction side to a water tank entrained and on the pressure side to a hydraulically controllable arm.
  • the driver may then, e.g. Approach trees and irrigate them specifically, without having to get off his vehicle.
  • 10 designates the housing of a pump in which cooperating rotary pistons 22 and 32 are arranged to To perform pumping operations. Not shown are the inlet and the outlet of the pump.
  • the housing 10 of the pump is closed with a plate 11 to the outside, with two holes have been placed through the plate, which in turn serve to carry out waves 21 and 31.
  • Fig. 1 two hydraulic motors 20 and 30 are shown, only schematically and only partially. In any case, these hydraulic motors 20 and 30 are formed with shaft ends 21 and 31 which protrude from the outside into the housing 10, 11 of the pump. On these shaft ends 21 and 31, the two rotary pistons 22 and 32 are pushed from axially outside to the drive.
  • sleeve 23 serves not only as a stop, but is also intended to serve as a support for liners so that a shaft seal 24 is possible.
  • the rotors can be made of metal or plastic and can have a corresponding coating, so that they can be used in aggressive media.

Abstract

The hydraulically driven pump for the feed of liquids, particle laden liquids, or fluids has a pair of intermeshing, multi-vaned, bevel-toothed rotary pistons driven by hydraulic motors and mounted in the pump casing (10). The two identical rotary pistons are driven independently of one another by two similar hydraulic motors (20,30) which are hydraulically connected in parallel and constantly transmit equal torque to the rotary pistons. The rotary pistons are mounted on the shaft ends (21,31) of the hydraulic motors.

Description

Die Erfindung bezieht sich auf eine Pumpe zur Förderung von Flüssigkeiten, von mit Partikeln beladenen Flüssigkeiten oder von Fluiden, aufweisend ein Paar miteinander kämmender mehrflügeliger schräg verzahnter Drehkolben, die ihrerseits vermittels von Motoren angetrieben und in einem Pumpengehäuse mit Einlass und Auslass gelagert sind.The invention relates to a pump for the conveyance of liquids, of particle-laden liquids or fluids, comprising a pair of intermeshing multi-blade helical lobed rotary pistons, which in turn are driven by means of motors and stored in a pump housing with inlet and outlet.

Es sind hydraulisch angetriebene Pumpen bekannt, die insbesondere dann eingesetzt werden, wenn partikelbeladene Flüssigkeiten gepumpt werden müssen. Ein wesentliches Merkmal solcher Pumpen ist die Synchronisation, die unbedingt erforderlich ist, damit die Kolben zueinander geordnet arbeiten können. Konstruktiv schlägt sich dies in einem Gleichlaufgetriebe nieder, welches das einwandfreie Arbeiten der Drehkolben sicherstellen muss.Hydraulically driven pumps are known, which are used in particular when particle-laden liquids have to be pumped. An essential feature of such pumps is the synchronization, which is essential for the pistons to work orderly. Constructively, this is reflected in a constant velocity gearbox, which must ensure the proper functioning of the rotary pistons.

Das Dokument WO 97/01037 A (D1) offenbart:

  • Es ist eine Pumpe bekannt, die zur Förderung von Fluiden geeignet ist und aufweist:
  • ein Paar miteinander kämmender zueinander identischer schräg verzahnter Drehkolben;
  • ein Pumpengehäuse mit Einlass und Auslass;
  • zwei gleiche Elektromotoren, welche unabhängig voneinander angetrieben sind, implizit parallel geschaltet sind und gleiche Drehmomente erzeugen, wenngleich auch Synchronisationszahnräder zur Notsynchronisation vorgesehen sind.
Document WO 97/01037 A (D1) discloses:
  • A pump is known that is suitable for conveying fluids and has:
  • a pair of intermeshing helical rotary pistons which mesh with each other;
  • a pump housing with inlet and outlet;
  • two identical electric motors, which are driven independently, are implicitly connected in parallel and generate equal torques, although synchronization gears are also provided for emergency synchronization.

Es ist eine Drehkolbenpumpe (US-A-3,184,155) mit zueinander identischen schräg verzahnten Drehkolben und mit hydraulischem Antrieb bekannt. Bei dem Antrieb handelt es sich nicht um zwei unabhängig voneinander antreibende Hydraulikmotoren gleicher Bauart, sondern um einen einzigen die Drehkolben antreibenden Hydraulikmotor, dessen zwei verzahnte Schrauben gemeinsam von einer Hydraulikflüssigkeit angetrieben werden.It is a rotary pump (US-A-3,184,155) with mutually identical helically toothed rotary piston and known with hydraulic drive. The drive is not two independently driving hydraulic motors of the same type, but a single rotary motor driving the hydraulic motor, the two toothed screws are driven together by a hydraulic fluid.

Bei der vorliegenden Erfindung geht es darum, eine Pumpe der eingangs genannten Art baulich zu vereinfachen.In the present invention, it is important to simplify a pump of the type mentioned structurally.

Erreicht wird dies dadurch, dass bei einer Pumpe der eingangs genannten Art die beiden zueinander identischen Drehkolben von zwei gleichen Hydraulikmotoren unabhängig voneinander angetrieben und hydraulisch parallel geschaltet sind und somit stets die gleichen Drehmomente auf die Drehkolben übertragen.This is achieved by the fact that in a pump of the type mentioned, the two mutually identical rotary pistons are driven by two identical hydraulic motors independently and hydraulically connected in parallel and thus always transmit the same torques to the rotary piston.

Solche Pumpen können ohne Gleichlaufgetriebe und ohne Synchronisation eingesetzt werden, und zwar sowohl im Vorwärts- als auch im Rückwärtsbetrieb, ohne dass es dabei zu Störungen kommen kann.Such pumps can be used without synchronous gearing and without synchronization, both in forward and in reverse operation, without causing interference.

Besonders vorteilhaft ist der Einsatzzweck solcher Pumpen im Zusammenhang mit kommunalen Mehrzweckfahrzeugen, die eine Frontaufnahme mit Hydraulikanschluss aufweisen, an der man eine hydraulische Pumpe anschließen kann. Die Pumpe wird mittels eines Schlauches saugseitig an einen mitgeführten Wassertank und druckseitig an einen hydraulisch steuerbaren Arm angeschlossen. Der Fahrer kann dann z.B. Bäume anfahren und diese gezielt bewässern, ohne dass er von seinem Fahrzeug absteigen muss.Particularly advantageous is the purpose of such pumps in connection with municipal multi-purpose vehicles having a front intake with hydraulic connection, where you can connect a hydraulic pump. The pump is connected by means of a hose on the suction side to a water tank entrained and on the pressure side to a hydraulically controllable arm. The driver may then, e.g. Approach trees and irrigate them specifically, without having to get off his vehicle.

Weitere vorteilhafte Merkmale gehen aus den Unteransprüchen hervor, nämlich dass
die Drehkolben einseitig gelagert sind,
die Drehkolben auf den Wellenenden der Motoren gelagert sind,
die Drehkolben auf die Wellenenden aufschiebbar sind und
zwischen den Drehkolben und den Motoren jeweils eine Hülse angeordnet ist.Further advantageous features emerge from the dependent claims, namely that
the rotors are mounted on one side,
the rotary pistons are mounted on the shaft ends of the engines,
the rotary pistons are pushed onto the shaft ends and
in each case a sleeve is arranged between the rotary piston and the motors.

Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise erläutert.

Fig. 1
zeigt eine Längsschnittansicht durch eine Pumpe mit Hydraulikantrieb gemäß der Erfindung.
Fig. 2
zeigt eine Schnittansicht gemäß A-A der Fig. 1
The invention will be explained below with reference to the drawing, for example.
Fig. 1
shows a longitudinal sectional view of a pump with hydraulic drive according to the invention.
Fig. 2
shows a sectional view according to AA of Fig. 1st

In den Figuren ist mit 10 das Gehäuse einer Pumpe bezeichnet, in dem zusammenwirkende Drehkolben 22 und 32 angeordnet sind, um Pumpvorgänge auszuführen. Nicht gezeigt sind der Einlass und der Auslass der Pumpe.In the figures, 10 designates the housing of a pump in which cooperating rotary pistons 22 and 32 are arranged to To perform pumping operations. Not shown are the inlet and the outlet of the pump.

Das Gehäuse 10 der Pumpe ist mit einer Platte 11 nach außen hin abgeschlossen, wobei durch die Platte hindurch zwei Bohrungen gelegt worden sind, die wiederum der Durchführung von Wellen 21 und 31 dienen.The housing 10 of the pump is closed with a plate 11 to the outside, with two holes have been placed through the plate, which in turn serve to carry out waves 21 and 31.

In der Fig. 1 sind zwei Hydraulikmotoren 20 und 30 gezeigt, und zwar nur schematisch und auch nur zum Teil. In jedem Falle sind diese Hydraulikmotoren 20 und 30 mit Wellenenden 21 und 31 ausgebildet, die von außen her in das Gehäuse 10, 11 der Pumpe hineinragen. Auf diese Wellenenden 21 und 31 sind die beiden Drehkolben 22 und 32 von axial außen zum Antrieb hin aufgeschoben.In Fig. 1, two hydraulic motors 20 and 30 are shown, only schematically and only partially. In any case, these hydraulic motors 20 and 30 are formed with shaft ends 21 and 31 which protrude from the outside into the housing 10, 11 of the pump. On these shaft ends 21 and 31, the two rotary pistons 22 and 32 are pushed from axially outside to the drive.

Die richtige Lage der Drehkolben 22 und 32 auf den Wellenenden 21 und 31 wird durch Hülsen sichergestellt, wobei in Fig. 1 lediglich die Hülse 23 für den oberen Drehkolben gezeigt ist. Die Hülse 23 dient nicht nur als Anschlag, sondern ist auch dazu gedacht, als Auflager für Laufbuchsen zu dienen, damit eine Wellenabdichtung 24 möglich ist.The correct position of the rotary pistons 22 and 32 on the shaft ends 21 and 31 is ensured by sleeves, in Fig. 1, only the sleeve 23 is shown for the upper rotary piston. The sleeve 23 serves not only as a stop, but is also intended to serve as a support for liners so that a shaft seal 24 is possible.

Im Zusammenhang mit der vorliegenden Erfindung ist es wesentlich, dass der Achsabstand der beiden Wellen 21 und 31 bzw. der Drehkolben 22 so klein gewählt worden ist, dass nur noch Hydraulikantriebe für den Antrieb der beiden Drehkolben in Frage kommen. Es wird ein gedrungener Aufbau der Pumpe insgesamt ermöglicht, wenn Hydraulikmotoren eingesetzt werden.In connection with the present invention, it is essential that the center distance of the two shafts 21 and 31 and the rotary piston 22 has been chosen so small that only hydraulic drives for driving the two rotary pistons come into question. It is a squat design of the pump allows a total when hydraulic motors are used.

Weiterhin ist für die Erfindung wesentlich, dass die beiden Drehkolben zueinander identisch ausgebildet sind.Furthermore, it is essential for the invention that the two rotary pistons are identical to each other.

Bei der Pumpe gemäß der Erfindung ist es möglich, die beiden Drehkolben direkt auf das Antriebsende der Motoren aufzusetzen, zusätzliche separate Wellen sind nicht erforderlich.In the pump according to the invention, it is possible to put the two rotary pistons directly on the drive end of the motors, additional separate waves are not required.

Auch können die Drehkolben aus Metall oder aus Kunststoff hergestellt werden und können eine entsprechende Beschichtung haben, so dass sie auch bei aggressiven Medien eingesetzt werden können.The rotors can be made of metal or plastic and can have a corresponding coating, so that they can be used in aggressive media.

Claims (5)

  1. Pump for the delivery of liquids, of particle loaded liquids or of fluids, comprising a pair of spiral toothed rotary pistons (22, 32) meshing with each other and having several blades, which pistons are in turn driven by means of motors (20, 30) and are supported in a pump housing (10) with inlet and outlet, characterised in that the two mutually identical rotary pistons (22, 32) are driven independently from each other by two equal hydraulic motors (20, 30), and that the hydraulic motors are connected in parallel and always transfer the same torque to the rotary pistons.
  2. Pump according to claim 1, characterised in that the rotary pistons (22, 23) are supported on one side.
  3. Pump according to claim 2, characterised in that the rotary pistons (22, 32) are supported on the shaft ends (21, 31) of the motors (20, 30).
  4. Pump according to claim 3, characterised in that the rotary pistons (22, 32) are slidable onto the shaft ends (21, 31) .
  5. Pump according to claim 4, characterised in that a sleeve (23) is arranged between each of rotary pistons (22, 32) and the motors (20, 30).
EP04020942A 2003-09-24 2004-09-03 Rotary piston type pump, in particular for pumping particle loaded fluids Active EP1519044B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20314793U 2003-09-24
DE20314793U DE20314793U1 (en) 2003-09-24 2003-09-24 Hydraulically driven pump

Publications (2)

Publication Number Publication Date
EP1519044A1 EP1519044A1 (en) 2005-03-30
EP1519044B1 true EP1519044B1 (en) 2006-06-21

Family

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Family Applications (1)

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EP04020942A Active EP1519044B1 (en) 2003-09-24 2004-09-03 Rotary piston type pump, in particular for pumping particle loaded fluids

Country Status (3)

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EP (1) EP1519044B1 (en)
AT (1) ATE331140T1 (en)
DE (2) DE20314793U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012010401U1 (en) 2012-10-31 2014-02-03 Hugo Vogelsang Maschinenbau Gmbh Rotary pump with direct drive
DE202018107141U1 (en) 2018-12-13 2020-03-18 Vogelsang Gmbh & Co. Kg Rotary lobe pump with internal bearing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008045440B4 (en) * 2008-09-02 2017-02-09 Börger GmbH Rotary piston of a rotary lobe pump and rotary lobe pump
WO2018113898A1 (en) * 2016-12-19 2018-06-28 Renk-Maag Gmbh Hydraulic drive system for a delivery pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184155A (en) * 1963-04-17 1965-05-18 Cooper Bessemer Corp Motor compressor unit
JP3074829B2 (en) * 1991-09-05 2000-08-07 松下電器産業株式会社 Fluid rotating device
DE19522555A1 (en) * 1995-06-21 1997-01-02 Sihi Ind Consult Gmbh Dual-rotor type rotary piston compressor e.g. for vacuum pump
PT834017E (en) * 1995-06-21 2000-04-28 Sterling Ind Consult Gmbh PUMP VACUUM
DE20305937U1 (en) * 2003-04-12 2004-05-19 Hugo Vogelsang Maschinenbau Gmbh Rotary piston pump with integrated hydraulic motor has synchronizing gear unit formed as gear pump with intakes and outlets for pumped medium and hydraulic fluid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012010401U1 (en) 2012-10-31 2014-02-03 Hugo Vogelsang Maschinenbau Gmbh Rotary pump with direct drive
KR20150081317A (en) * 2012-10-31 2015-07-13 휴고 포겔상 마시네바우 게엠베하 Rotary piston pump having direct drive
DE202018107141U1 (en) 2018-12-13 2020-03-18 Vogelsang Gmbh & Co. Kg Rotary lobe pump with internal bearing
WO2020120746A1 (en) 2018-12-13 2020-06-18 Vogelsang Gmbh & Co. Kg Lobe pump with inner bearing

Also Published As

Publication number Publication date
ATE331140T1 (en) 2006-07-15
DE20314793U1 (en) 2005-02-03
DE502004000814D1 (en) 2006-08-03
EP1519044A1 (en) 2005-03-30

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