EP1210519B1 - Zahnradpumpe mit antriebseinrichtung und hydrauliktank - Google Patents

Zahnradpumpe mit antriebseinrichtung und hydrauliktank Download PDF

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Publication number
EP1210519B1
EP1210519B1 EP00962440A EP00962440A EP1210519B1 EP 1210519 B1 EP1210519 B1 EP 1210519B1 EP 00962440 A EP00962440 A EP 00962440A EP 00962440 A EP00962440 A EP 00962440A EP 1210519 B1 EP1210519 B1 EP 1210519B1
Authority
EP
European Patent Office
Prior art keywords
coupling piece
drive
hydraulic
pump
hydraulic tank
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
EP00962440A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1210519A1 (de
Inventor
Harald Klahm
Rüdiger JUNG
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.)
Hydac Fluidtechnik GmbH
Original Assignee
Hydac Fluidtechnik GmbH
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 Hydac Fluidtechnik GmbH filed Critical Hydac Fluidtechnik GmbH
Publication of EP1210519A1 publication Critical patent/EP1210519A1/de
Application granted granted Critical
Publication of EP1210519B1 publication Critical patent/EP1210519B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/5109—Convertible
    • Y10T137/5283—Units interchangeable between alternate locations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/86035—Combined with fluid receiver
    • Y10T137/86059—Hydraulic power unit

Definitions

  • the invention relates to a device for pumping fluid with a Hydraulic pump and a drive device
  • the hydraulic pump is an external gear pump and as an independent component with different Types of drive devices as further components in Art
  • a modular system can be coupled and for this purpose as a one-piece coupling piece is formed, various hydraulic tanks being the third type of component, especially with different tank volumes are, the respective hydraulic tank from one side to the coupling piece and the respective drive device from the other, opposite Side of the coupling piece can be connected to this; what for the coupling piece has a flange part on at least one side, and wherein sealant between the coupling piece and the drive device and hydraulic tank are provided.
  • DE-A-195 14 749 is a device for pumping fluid described with a radial piston pump as a hydraulic pump and Drive device for operating the same.
  • the known device is also modular in the manner of a modular system, the independent component with the radial piston pump a multi-part Forms base body, which is correspondingly large in the axial direction builds up that the known pumping device turns out large and therefore not in every installation case, especially in confined spaces, can be used. Because of the multitude of needed individual piston pump elements for the radial piston pump is above it there is also a certain susceptibility to malfunctions in operation. Further is the provision and use of the Radial piston pump as a hydraulic pump complex and expensive.
  • Pump units which are also called pump units referred to, among other things, for lifting but also for lowering Loads used by hydraulic devices, for example in Area of tail lifts for trucks, car lifts, lifting tables od.
  • DC motors are used as drive devices used, whereas in the area of company plants or the like, where three-phase current is available, the respective pump device a three-phase motor is put into operation.
  • a hydraulic unit with a flange-like base plate equip, on one side surface a hydraulic pump interchangeable as well as a tightly enclosing one, as a container for the Hydraulic fluid serving housing is attached on the other side surface replaceable and an electric motor opposite the pump is arranged, the drive shaft coaxial with the drive shaft of the pump and runs perpendicular to the two side surfaces.
  • the hydraulic pump is part of the hydraulic tank, which reduces its storage volume.
  • the aforementioned flange-like The base plate is provided with bores, openings or the like.
  • DE-A-196 27 405 discloses an apparatus for pumping fluid with the features of the preamble of claim 1.
  • the known Pump arrangement consists of a hydraulic tank with filter and a External gear pump acting as a drive shaft of an electric motor Drive device is connected to this.
  • Hydraulic tank and electric motor are mounted on opposite sides of the pump housing, which serves as a coupling piece, the electric motor being adjustable Bearing plate engages an associated flange in its ring recess, while the hydraulic tank from a clamp on one collar-like seat is held.
  • the pump housing has a T-shaped contour graded by different widths. An exchange of the hydraulic tank on the side of the coupling piece with the drive device is not possible, so that the customization options to given Customer requests are limited.
  • the object of the invention based on the known devices for pumping fluid further improve that their manufacturing costs and therefore the costs are reduced and that with few components a variety of customer requirements can comply. Furthermore, the invention is the The task is to create a functionally reliable pump unit that without having to reduce the tank volume of a tank, too can be accommodated in a space-saving manner in extremely cramped installation conditions can and yet is just as powerful as a comparable one State of the art product. A device solves this problem with the features of claim 1 in its entirety.
  • the coupling piece is designed in the manner of a base plate that the Coupling piece on its side opposite the flange part has another flange part, the one of its outer dimension Flange part is adapted that both flange parts on the outer circumference Have radial recess for the engagement of a sealant from free end of the respective hydraulic tank can be overlapped, and that the respective Hydraulic tank and the respective drive device on one side of the coupling piece can be connected together to this is achieved that with as few components as possible a pump device as a compact Unit can be assembled for a variety of applications.
  • the components available can be customized the sales unit can be combined in any combination.
  • the device according to the invention has thus achieved a modular system, with the same parts a high variance of different embodiments is realized at a low cost level.
  • the hydraulic tank take up the drive device and together with this arranged together on the side of the coupling piece provided for this purpose his.
  • the hydraulic pump is in the form of an external gear pump in the base plate recorded and fully integrated so that the full tank volume the tank unit to be connected is available. For the rest is the length by integrating the external gear pump into the base plate The fluid lines and control lines are reduced, which makes them functionally reliable Operation with low pressure drops accommodates.
  • the functional reliability The fact that the external gear pump requires only two gear wheels as the actuation and drive element, which on the one hand also saves installation space and on the other hand is inexpensive. Otherwise, the external gear pump can be determined by its volume throughput easier to calculate and for different applications interpret their geometric dimensions.
  • the hydraulic pump can also be used simply replaced by exchanging the coupling piece become; being due to the plate-like structure of the coupling piece the hydraulic pump itself is also easy for repair and maintenance purposes is accessible.
  • the device shown in the figures is used for pumping and therefore the delivery of fluid by means of a hydraulic pump 10 by a Drive device 12 can be driven.
  • the hydraulic pump 10 is as independent modular component with different types of drive devices 12 can be coupled as further components in the manner of a modular system and designed for this as a coupling piece 14 from the housing side.
  • Various hydraulic tanks 16 are a third type of component provided, in particular with different tank volumes, the respective Hydraulic tank 16 from one side to the coupling piece 14 and the respective drive device 12 from the other, opposite Side (see Fig. 1 and 3) or on the same side (see Fig. 2) of the Coupling piece 14 can be connected to this.
  • As per the illustration 1 to 3 is essentially only one type of hydraulic tank 16 shown, which has a refill 18 with fluid, in particular Hydraulic oil, is refillable.
  • the coupling piece 14 according to the embodiment shown as Hydraulic pump 10 has a gear pump 20 as an external gear pump with two interlocking corresponding gear wheels 22 as funding.
  • the wheels 22 of the gear pump 20 are in a pump room 24 of the coupling piece 14 added and rotatable in bearing bushes (not shown in detail) of the coupling piece 14.
  • each connected hydraulic tank 16 is with the inside of the pump chamber 24 connected in a fluid-carrying manner via a suction line 26, namely at the point of transition to the coupling piece via a suction flange 28 (see Fig. 1 and 3).
  • a suction line 26 and the fluid supply can be omitted takes place directly via the suction flange 28, this time on the drive device 12 is arranged.
  • a vertically extending delivery line 30 is present, the pump room 24 fluidly connects with the environment.
  • this is a spring-loaded Check valve 32 closed, that against the spring action opens as soon as the hydraulic pump 10 is started to the fluid supply to a consumer, for example in the form of a lifting device for a lifting platform, car lift or the like, with under pressure to supply standing fluid.
  • FIGS. 4 to 6 show opens out transversely into the feed line 30, a branch line 34, which with a Pressure protection device (valve) not shown in connection stands for the hydraulic system against pressure peaks in the sense of a Protect overload protection.
  • the feed opening of the suction flange 28 4 and 6 only partially opens into the pump chamber 24 with the gear pump 20.
  • An electric motor in particular a three-phase motor, serves as the drive device 12 36 according to FIGS. 1 and 2, or a DC motor 38 according to the Fig.3.
  • the three-phase motor 36 in the illustration according to FIG. 2 is arranged within the hydraulic tank 16 and thus an integral tank component.
  • the relevant pump unit with the so-called sub-oil motor takes therefore little installation space, but also reduces the available space Fluid quantity inside the hydraulic tank 16.
  • An embodiment would also be a hydraulic drive device 12 Drive conceivable.
  • the coupling piece 14 on its one free side a flange part 40, which from Free end of the respective hydraulic tank 16 can be overlapped, with the Place the relevant overlap with a sealant 42 in the form of a Sealing ring is arranged.
  • the further flange part 44 is the flange part 40 adapted and looks like the flange 40, one on the outer circumference Radial recess 46 before for the engagement of the sealant 42, if the Tank 16, as shown in Figure 2, placed on the other flange 44 becomes.
  • Both flange parts 40, 44 have an annular recess in the middle for receiving the suction flange 28 or for receiving the respective drive train 48 of the drive device 12.
  • the drive device 12 is therefore with its drive train 48 with the hydraulic pump 10 can be coupled, at least at the point of the drive train 48 within the further flange part 44 a fluid seal 50 in the form of a Ring seal is present. This way is about the addressed Sealant ensures a secure fluid seal of the interior of the pump device reached towards the environment.
  • Control device can hydraulic controls for fluid supply to the consumer include as well as entire hydraulic control blocks.
  • the single ones Components of the modular pump unit can be used with conventional ones Fix screw connections together. Since the hydraulic part 16 represents a closed unit, the pump unit is closed System operated, i.e. for a supply to be controlled Only the fluid content of the hydraulic tank 16 serves the consumer fluid-carrying lines integrated within the coupling piece 14 are, compared to known solutions, no separate sealing or Piping necessary.
  • the flange parts in particular can be ideally How to produce inexpensively from castings.
  • the drive devices mentioned 12 can represent purchased parts and the material design of the tank 16 is possible in plastic or in sheet steel. Execution
  • the actual gear pump 20 can be pressure-compensated, however also not be pressure-compensated.
  • the actual gear pump 20 with its external gears 22 is in Direction of view of the figures seen together with the conveyor line 30 in a vertical center plane of the flange-like coupling piece 14 and the drive axles for the gears 22 lie together with the longitudinal axis of the drive train 48 in planes transverse to the one addressed Longitudinal median plane, the section along the line II - II in Fig.1 (see Fig. 5).
  • the free end of the drive train 48 can be of the type a connecting pin which is formed in a receiving groove 54 of the cylindrical drive part 56 engages for one of the two gear wheels 22, whereby only one gear 22 can be driven in this way via the drive train 48 and that such driven gear 22 takes the other gear 22 for a pumping process by engaging the teeth in each other accordingly With.
  • the coupling piece 14 is a hydraulic pump 10 the central unit, any with hydraulic tanks 16, drive devices 12 and control devices not shown and consumers can be coupled as a system solution.
  • the coupling piece 14 is designed as a one-piece solid base plate body in the Type of a mounting plate and only from the mentioned supply and Control lines and the gear elements of the gear pump 20 penetrated.
  • the gears 22 of the external gear pump 20 are approximately housed centrally in the solid base plate of the coupling piece 14, so that there is a low-vibration drive during operation, which the provision promotes a continuous fluid flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
EP00962440A 1999-09-07 2000-09-05 Zahnradpumpe mit antriebseinrichtung und hydrauliktank Expired - Lifetime EP1210519B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19942567A DE19942567A1 (de) 1999-09-07 1999-09-07 Vorrichtung zum Pumpen von Fluid
DE19942567 1999-09-07
PCT/EP2000/008643 WO2001018397A1 (de) 1999-09-07 2000-09-05 Zahnradpumpe mit antriebseinrichtung und hydrauliktank

Publications (2)

Publication Number Publication Date
EP1210519A1 EP1210519A1 (de) 2002-06-05
EP1210519B1 true EP1210519B1 (de) 2003-10-29

Family

ID=7921032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00962440A Expired - Lifetime EP1210519B1 (de) 1999-09-07 2000-09-05 Zahnradpumpe mit antriebseinrichtung und hydrauliktank

Country Status (6)

Country Link
US (1) US6786709B1 (https=)
EP (1) EP1210519B1 (https=)
JP (1) JP4455796B2 (https=)
AT (1) ATE253175T1 (https=)
DE (2) DE19942567A1 (https=)
WO (1) WO2001018397A1 (https=)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572339B2 (en) 2001-03-30 2003-06-03 Eaton Corporation Positive displacement fluid pump having improved fill characteristics
DE10131750A1 (de) * 2001-07-03 2003-01-16 Bosch Rexroth Ag Hydraulikaggregat
ATE343063T1 (de) * 2002-09-17 2006-11-15 Maag Pump Systems Ag Vorrichtung mit einer zahnradpumpe und einem direktantrieb sowie eine extrusionsanlage
US20040146408A1 (en) * 2002-11-14 2004-07-29 Anderson Robert W. Portable air compressor/tank device
DE10306006B4 (de) * 2003-02-12 2005-02-24 Knapp, Jürgen Michael Hydraulikmodul
DE102004018909B4 (de) * 2004-04-15 2007-08-09 Jung Hebe- Und Transporttechnik Gmbh Hydraulikvorrichtung
DE102004054831A1 (de) * 2004-11-12 2006-05-24 Gisela Weber Zahnradpumpenaggregat
JP4820552B2 (ja) * 2005-01-19 2011-11-24 カヤバ工業株式会社 油圧制御装置、及びその油圧制御装置を備える油圧駆動ユニット
DE502007001260D1 (de) * 2007-08-07 2009-09-17 Hawe Hydraulik Se Motorpumpenaggregat
DE102008058283A1 (de) * 2008-11-20 2010-05-27 Wilhelm Karmann Gmbh Hydraulisches Aggregat mit einem Tank
CA2770867C (en) * 2011-03-08 2018-11-06 Synerject Llc In-tank fluid transfer assembly
EP2746590B1 (en) * 2012-12-19 2016-03-09 Bucher Hydraulics S.p.A. Power unit to move at least a hydraulic actuator
DE102013105445B4 (de) * 2013-05-28 2015-08-20 Pintsch Bubenzer Gmbh Funktionseinheit und Elektrohydraulisches Bremslüftgerät mit einer Solchen
US9753443B2 (en) 2014-04-21 2017-09-05 Synerject Llc Solenoid systems and methods for detecting length of travel
US9997287B2 (en) 2014-06-06 2018-06-12 Synerject Llc Electromagnetic solenoids having controlled reluctance
CN107076127B (zh) 2014-06-09 2019-11-12 新尼杰特公司 用于冷却螺线管泵的螺线管线圈的方法和设备
DE102016010669A1 (de) 2016-08-29 2018-03-01 Hydac Fluidtechnik Gmbh Motor-Pumpenvorrichtung
JP6945982B2 (ja) * 2016-09-12 2021-10-06 ダイキン工業株式会社 油圧ユニット

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US1218300A (en) * 1915-11-20 1917-03-06 George F Nelson Vacuum-pump.
US2984187A (en) * 1956-02-20 1961-05-16 Thompson Ramo Wooldridge Inc Power steering pump
US3515167A (en) 1968-08-22 1970-06-02 Ernest J Svenson Hydraulic and electrical power unit
DE3227926C4 (de) * 1982-07-27 1995-07-13 Knapp Mikrohydraulik Gmbh Hydraulikeinheit
NL9500190A (nl) * 1995-02-02 1995-06-01 Applied Power Inc Hydraulisch aggregaat voor een hydraulisch systeem.
DE19514749A1 (de) * 1995-04-21 1996-10-24 Bosch Gmbh Robert Hydrostatische Radialkolbenpumpe
DE19627405B4 (de) * 1996-07-06 2004-10-21 Zf Friedrichshafen Ag Pumpenanordnung
JP3667034B2 (ja) * 1996-07-17 2005-07-06 光洋精工株式会社 電動ポンプ
US6158983A (en) * 1997-04-24 2000-12-12 Trw Inc. Pump having muffler for attenuating noise
DE19726134A1 (de) * 1997-06-20 1998-12-24 Bosch Gmbh Robert Hydroaggregat
DE19833372A1 (de) * 1998-07-24 2000-01-27 Zahnradfabrik Friedrichshafen Zahnradpumpe
FR2789446B1 (fr) * 1999-02-04 2002-03-08 Hydroperfect Internat Hpi Pompe hydraulique du type a engrenage et groupe electro-pompe equipe d'une telle pompe

Also Published As

Publication number Publication date
JP2003508688A (ja) 2003-03-04
DE19942567A1 (de) 2001-03-22
ATE253175T1 (de) 2003-11-15
WO2001018397A1 (de) 2001-03-15
US6786709B1 (en) 2004-09-07
EP1210519A1 (de) 2002-06-05
JP4455796B2 (ja) 2010-04-21
DE50004267D1 (de) 2003-12-04

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