EP0940578A1 - Ensemble moto-pompe hydraulique - Google Patents

Ensemble moto-pompe hydraulique Download PDF

Info

Publication number
EP0940578A1
EP0940578A1 EP98109213A EP98109213A EP0940578A1 EP 0940578 A1 EP0940578 A1 EP 0940578A1 EP 98109213 A EP98109213 A EP 98109213A EP 98109213 A EP98109213 A EP 98109213A EP 0940578 A1 EP0940578 A1 EP 0940578A1
Authority
EP
European Patent Office
Prior art keywords
pump unit
housing
unit according
hydraulic motor
motor pump
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
EP98109213A
Other languages
German (de)
English (en)
Other versions
EP0940578B1 (fr
Inventor
Georg Neumair
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.)
Hawe Hydraulik GmbH and Co KG
Original Assignee
Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
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 Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG filed Critical Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
Publication of EP0940578A1 publication Critical patent/EP0940578A1/fr
Application granted granted Critical
Publication of EP0940578B1 publication Critical patent/EP0940578B1/fr
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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs

Definitions

  • the invention relates to a hydraulic motor pump unit in the preamble of Claim 1 specified type.
  • the pump elements are attached to the bottom of a plastic case that is also the reservoir forms.
  • the housing has an insertion shaft opposite the pump elements, the bottom of which is open in the area of a motor mount. In the slot the motor is plugged in from the outside, such that its output shaft engages in a drive shaft of the pump elements.
  • a commutator motor is contained in the housing through which the fuel flows, which is completely enclosed by the housing.
  • the invention has for its object a hydraulic motor pump unit to create the type mentioned above, despite a reservoir with a large capacity has compact dimensions and, if desired, as compact portable or mobile unit can be used.
  • the collector motor can be operated with direct current, it can be operated with, for example can be operated wirelessly using the unit's own power pack. From the integration
  • the encapsulation in the housing results in compact dimensions and a relative low weight, so that the unit forms a transportable or mobile unit. Despite the incorporation of the encapsulation inside the case are large Capacity of the reservoir compact dimensions possible, because that Reservoir extends over the length of the encapsulation or the length of the Encapsulation and the depth of the reservoir overlap.
  • a slight protrusion of the encapsulation over the housing according to the claims 2 or 3 hardly affects the easy handling of the unit and leaves achieve compact dimensions.
  • the power supply to the collector motor is facilitated and if necessary, an external cooling fan can be arranged, the is driven by the collector motor or has its own drive source.
  • a relatively large capacity for the reservoir is achieved.
  • the same housing can be used as for an under oil motor, what Manufacturing costs reduced, and still becomes a reservoir capacity enables that is only slightly smaller than the reservoir of a percentage same size motor pump unit with sub-oil motor.
  • the power supply (possibly also at this end arranged cooling) removed from the influence of the hydraulic fluid.
  • the number of components is small because the motor shaft the pump element drives directly. However, this may require a special design of the a purchased part-forming brushless motor with an extended motor shaft.
  • a commercially available collector motor can be used according to claim 7 because the adapter creates the drive connection to the pump element.
  • the features of claim 9 also contribute to the simple construction. It can if necessary the same housing can be used as for a motor pump unit with sub-oil motor.
  • the flange is used to fasten the encapsulation and / or of the pump element or elements. Since the housing is very dimensionally stable, there is one stable storage for the collector motor and / or the pump elements. Further is this concept is easy to assemble and maintain.
  • this area of the encapsulation can be made with a low overall height train because the power supply and the motor shaft bearing are interlocked.
  • the sliding seal provides protection against the collector motor the hydraulic fluid.
  • the motor shaft bearing in the other bearing cover is running nevertheless in the hydraulic fluid, so that it is cooled, cleaned and damped.
  • a tight fit of the encapsulation in the unit is easy to assemble achieved.
  • the performance of the unit can be determined by the desired number of Pump elements vary.
  • the pump elements can be according to claim 14 Mount stably on the flange.
  • the adapter is a cost-effective construction that is simple can be assembled and is easy to maintain. He takes over the storage function for the motor shaft and the sealing function for separating the reservoir from the collector motor.
  • the manufacturing costs of the unit can be reduced, because only the other bearing cover has to be made and attached, the others Components of the purchasing unit can be used without modifications.
  • the unit for transport and mobile operation easy to handle. Standing and / or lying operation is possible. When lying down Operation, it is advisable to store the pump element in the bottom of the reservoir or to provide a suction pipe leading downwards in the case of several pump elements, to avoid sucking in air when the liquid level drops.
  • a holder for a power pack is provided, to use the unit wirelessly.
  • a hydraulic motor pump unit A according to FIGS. 1 and 2 has a housing G, preferably with a square or square outer and inner cross section, in which several hydraulic pump elements P are mounted. Three pump elements P are shown. Depending on your needs, the number the pump elements P may be larger or smaller.
  • the housing is a Square hollow cast body 1, for example made of a light metal alloy, and has on its inner wall an annular flange 2, which via webs 3 (Fig. 2), expediently in one piece, connected to the housing G and the housing in divided into two sections. Flow channels 40 run between the webs 3
  • the housing could also be a round tube section, e.g. be made of light metal.
  • the Housing G is closed at both ends by caps 4 and 5, wherein the closure cover 5 is approximately ring-shaped and forms a sealing area 7.
  • the Pump elements P are mounted on flange 2 and are driven by a motor shaft W of a collector motor M (DC motor) driven with a liquid-tight Encapsulation K is inserted into the interior of the housing in such a way that between the inner wall the housing G and the encapsulation K a reservoir R for a pressure fluid, e.g. B. hydraulic oil is defined.
  • a pressure fluid e.g. B. hydraulic oil
  • the encapsulation K consists of a tube section 8 open at both ends, e.g. B. with constant wall thickness, and bilateral bearing caps 9, 10, z. B. by Tensioning screws 11 braced against each other.
  • the stator or Magnetic part 12 is set, which surrounds a rotor 13 on the motor shaft W.
  • a collector device 14, 16 At that Bearing cover 9 facing side of the rotor 13 is a collector device 14, 16 intended.
  • the other bearing cap 10, the z. B. is designed as a solid molded part, contains one Seat 19 for a second engine mount 20 and a seat for a sliding seal 21 the side of the engine mount 20 facing the engine M.
  • the collector motor M or the encapsulation K is attached to the flange 2 by means of retaining screws 6 set, in the embodiment shown such that the encapsulation K with a free end area sealed by the sealing area 7 of the sealing cap 5 protrudes from the outside of the housing G.
  • Approx. 85% of the length of the encapsulation K are arranged inside the housing G. or 85% of the volume of the encapsulation K.
  • the encapsulation K could also be used for Entirely arranged within the housing G, or possibly to the outside protrude.
  • the motor shaft W is extended and carried at 22 beyond the motor shaft bearing 20 at the free end an eccentric section 23, on which by means of a slide bearing 24 Race 25 is rotatably mounted.
  • the race 25 acts on a plunger 26 not shown piston of the pump element P.
  • Fig. 2 it is indicated that the inner wall of the housing G corner areas 28th defines that with the round outer cross section of the pipe section 8, expediently also in the housing section containing the pump elements P, a reservoir Limit R with a large capacity.
  • the pressure outlets of all pump elements P are connected to a via a pressure line 29 Pressure connection 30 of the housing G connected, the pressure connection being in one Housing projection 31 is located, which may also have a return 32.
  • each pump element P is sucked in directly on the suction side via a filter sieve 33.
  • Suction nozzle 34 (indicated by dashed lines in FIG. 2) connected to the sump area, to avoid sucking in air.
  • the motor shaft W after that for such Collector motors designed standard commercial.
  • a Adapter D pressed on and secured by a dowel pin 37, the eccentric section 23 (see Fig. 1) for driving the pump elements.
  • the adapter D is designed like a sleeve and carries seat surfaces 38, 39 for the motor mount 20 and the Sliding seal 21.
  • At least one handle 35 is provided on the housing G, and optionally also rack 36 to carry and set up the unit A.
  • the Handle 35 is provided at the top depending on the intended operating position (standing or lying). If necessary, handles are provided for both operating positions.
  • a holder for one Powerpack on the housing or on the end of the enclosure protruding from the housing be provided (not shown) to use the unit without cables.
  • a cooling fan could also be arranged at the outwardly projecting end of the encapsulation H. be either through the motor shaft through the bearing cap 9 W is driven or has its own drive, expediently also a DC motor.
  • Inner and / or outer cooling fins could be on the housing G and / or on the encapsulation K. be provided. Instead of the racks 36, ground wheels could be attached be. Alternatively or in addition to the handle 35, a shoulder strap could also be used of the unit can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Braking Systems And Boosters (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP98109213A 1998-02-12 1998-05-20 Ensemble moto-pompe hydraulique Expired - Lifetime EP0940578B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29802441U 1998-02-12
DE29802441U DE29802441U1 (de) 1998-02-12 1998-02-12 Hydraulisches Motorpumpenaggregat

Publications (2)

Publication Number Publication Date
EP0940578A1 true EP0940578A1 (fr) 1999-09-08
EP0940578B1 EP0940578B1 (fr) 2004-05-06

Family

ID=8052594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109213A Expired - Lifetime EP0940578B1 (fr) 1998-02-12 1998-05-20 Ensemble moto-pompe hydraulique

Country Status (3)

Country Link
EP (1) EP0940578B1 (fr)
AT (1) ATE266148T1 (fr)
DE (2) DE29802441U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096742A1 (fr) * 2000-06-16 2001-12-20 Lukas Hydraulik Gmbh & Co. Kg Unite a pompe hydraulique portative
EP1731762A1 (fr) * 2005-04-08 2006-12-13 HAWE Hydraulik GmbH & Co. KG Ensemble de pompage
EP2241753A1 (fr) 2009-04-15 2010-10-20 HAWE Hydraulik SE Agrégat de pompes de moteur

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859340C2 (de) * 1998-12-22 2003-02-06 Siemens Ag Elektrohydraulische Einheit
DE29906881U1 (de) * 1999-04-16 1999-07-01 Heilmeier & Weinlein Elektrohydraulisches Motorpumpenaggregat
JP4493061B2 (ja) * 1999-04-22 2010-06-30 油研工業株式会社 電動機内蔵油圧ポンプ
DE202005005165U1 (de) * 2005-04-01 2006-08-17 Wagner, Paul-Heinz Hydraulikaggregat
DE102007047757A1 (de) 2007-09-28 2009-04-02 ESV Werkzeuge und Zubehör für die elektrische Stromverteilung GmbH Mobile Hydraulikpumpe für hydraulisch zu betreibende Werkzeuge
DE102010040276A1 (de) 2010-09-06 2012-03-08 Kkt Gmbh Einrichtung zur Erhöhung der Arbeitsleistung hydraulisch betriebener Werkzeuge
DE102015207033A1 (de) 2015-04-17 2016-10-20 Werkzeuge Für Die Elektrische Stromverteilung Ug (Haftungsbeschränkt) Tragbare mobile Hydraulikpumpe für hydraulisch zu betreibende Werkzeuge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169297B (de) * 1956-03-08 1964-04-30 Borg Warner Brennstoff-Foerderpumpe mit rotierendem Foerderorgan
DE4120665A1 (de) * 1991-06-22 1992-12-24 Teves Gmbh Alfred Elektromotorisch angetriebene hydraulikpumpe
EP0690230A1 (fr) * 1994-06-30 1996-01-03 Applied Power Inc. Unité de pompage
EP0857871A1 (fr) * 1997-02-05 1998-08-12 HOERBIGER GmbH Ensemble moto-pompe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169297B (de) * 1956-03-08 1964-04-30 Borg Warner Brennstoff-Foerderpumpe mit rotierendem Foerderorgan
DE4120665A1 (de) * 1991-06-22 1992-12-24 Teves Gmbh Alfred Elektromotorisch angetriebene hydraulikpumpe
EP0690230A1 (fr) * 1994-06-30 1996-01-03 Applied Power Inc. Unité de pompage
EP0857871A1 (fr) * 1997-02-05 1998-08-12 HOERBIGER GmbH Ensemble moto-pompe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096742A1 (fr) * 2000-06-16 2001-12-20 Lukas Hydraulik Gmbh & Co. Kg Unite a pompe hydraulique portative
US6942468B2 (en) 2000-06-16 2005-09-13 Lukas Hydraulik Gmbh Portable hydraulic pump unit
EP1731762A1 (fr) * 2005-04-08 2006-12-13 HAWE Hydraulik GmbH & Co. KG Ensemble de pompage
US7448858B2 (en) 2005-04-08 2008-11-11 Hawe Hydraulik Gmbh & Co. Kg Pump aggregate
EP2241753A1 (fr) 2009-04-15 2010-10-20 HAWE Hydraulik SE Agrégat de pompes de moteur

Also Published As

Publication number Publication date
EP0940578B1 (fr) 2004-05-06
DE29802441U1 (de) 1998-05-07
ATE266148T1 (de) 2004-05-15
DE59811331D1 (de) 2004-06-09

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