EP3320210B1 - Groupe hydraulique - Google Patents

Groupe hydraulique Download PDF

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Publication number
EP3320210B1
EP3320210B1 EP16728838.0A EP16728838A EP3320210B1 EP 3320210 B1 EP3320210 B1 EP 3320210B1 EP 16728838 A EP16728838 A EP 16728838A EP 3320210 B1 EP3320210 B1 EP 3320210B1
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EP
European Patent Office
Prior art keywords
structural unit
hydraulic
unit
tank
support device
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
EP16728838.0A
Other languages
German (de)
English (en)
Other versions
EP3320210A1 (fr
Inventor
Andreas Böhler
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
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Publication date
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Publication of EP3320210A1 publication Critical patent/EP3320210A1/fr
Application granted granted Critical
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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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
    • F04B23/023—Pumping installations or systems having reservoirs the pump being immersed in the reservoir only the pump-part being immersed, the driving-part being outside the reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies

Definitions

  • the invention relates to a hydraulic unit, in particular for the supply of conveying and lifting equipment with hydraulic fluid, with respect to a device main axis end located tank and attached to this functional components, which consist of at least one hydraulic pump and a connector body and an electric motor for driving the hydraulic pump.
  • Hydraulic units of this type are known.
  • the document DE 10 2008 030 715 A1 shows as the subject of the application closest prior art, a hydraulic unit of this genus.
  • the connection body for the electric motor and for the hydraulic pump forms a support flange in the form of a rectangular block.
  • fluid connections for hydraulic connections and hydraulic components, such as valves, ventilation devices and the like, are formed in the connection body. Because of the carrier function for both electric motor and hydraulic pump is forced to make the connection body, instead of a plastic material, from a resilient metallic material.
  • connection body as a load-bearing carrier for motor and hydraulic pump on the one hand and as a hydraulic component with fluid guides and hydraulic connections on the other hand leads to a complex shape of the connection body and thus to a correspondingly high production cost.
  • a simple production of die-cast aluminum because of the risk of voids formation is out of the question.
  • One is therefore forced to machine a forging machined.
  • high material costs also result because of the large proportion of chipped scrap.
  • EP 1 231 385 A1 a device for conveying hydraulic oil, lubricating oil or the like is known, comprising at least a reservoir and a pump with a pump flange which is fixed to a valve block to which the reservoir is anchored, wherein the valve block by molding the pump flange with plastic as a one-piece component is made with the same.
  • the hydraulic pump comprises a plurality of housing parts, wherein a housing part of the pump flange for mounting the pump and on the side facing away from the hydraulic pump of the valve block is followed by the latter to the electric motor which drives the hydraulic pump via a drive shaft and by means of screws which the engine block axially reach through the valve block is attached.
  • US 2 447 467 A shows an aggregate ( Fig. 1 ), in which an electric motor is mounted by means of a motor carrier on a tank lid of a fluid storage tank. An engaging in the fluid tank feed pump is held by a pump flange to a rod-like spacer body through which the driven by the electric motor pump shaft is guided.
  • the invention has the object to provide a hydraulic unit of the type mentioned, which is simple and efficient to produce with reduced manufacturing costs.
  • an essential feature of the invention consists in that the connection body is composed of at least one structural unit and at least one further structural unit, that the one structural unit is at least partially received in the further structural unit, and that the one structural unit of Connection body as a carrying means comprises a fixing component for fixing both the electric motor and the hydraulic pump, which are arranged on opposite sides of the connection body.
  • the connection body is composed of at least one structural unit and at least one further structural unit, that the one structural unit is at least partially received in the further structural unit, and that the one structural unit of Connection body as a carrying means comprises a fixing component for fixing both the electric motor and the hydraulic pump, which are arranged on opposite sides of the connection body.
  • the one structural unit of the connecting body as a carrying device has a fastening component for fixing both the electric motor and the hydraulic pump, which are arranged on opposite sides of the connecting body.
  • This structural unit, which serves as a carrying device can have bores or threaded bores as a fastening component for forming screw connections with an electric motor and a hydraulic pump.
  • the connector body the free upper tank opening in the manner of a container or tank lid at least close at the edge, wherein the hydraulic pump is received by the tank interior and the electric motor is located on the other side of the connector body.
  • connection body may be made of a metal material, preferably of an aluminum material as a die-cast or forged, wherein the further structural unit of a plastic material, preferably of a glass fiber reinforced polyamide material consists.
  • the connection body has an advantageous, damping effect.
  • this lightweight construction can be realized, in which about 50% weight reduction can be achieved, for example, if 2/3 of the connector body made of plastic.
  • the support device in addition to the fastening component a receiving component for fixing further functional components, such as a valve device having.
  • connections may be provided for a hydraulic output controlling switching valve and / or a check valve.
  • the carrying device is accommodated in the further structural unit in such a way that a continuous opening in the connecting body is created, which allows the passage of drive means between the electric motor and the hydraulic pump.
  • the connecting body can thereby form the implementation of a drive shaft for the direct drive of the inside of the tank located hydraulic pump.
  • the arrangement can be made with particular advantage so that the support means the continuous opening with its fastening component in a concentric arrangement to this at least partially arcuate limited or completely includes the opening.
  • the carrying device can have at least one engagement nose at the end of its arcuate part of its fastening component in a particularly advantageous manner, the engagement nose engaging in a locatable recess of the further structural unit to form a positioning.
  • the support device between the fastening component and a hydraulic receiving component may have a connecting web which is accommodated in a tank-side closed receiving channel of the further structural unit of the connecting body. Due to the lack of connection of the receiving channel to the tank interior, the function of the further structural unit remains as a tank lid.
  • the support device is received flush in the further structural unit in the direction of the electric motor, wherein the further structural unit forms a plate-like cover body for the completion of the tank and has a closable ventilation opening for the tank interior.
  • the further structural unit may extend as a final part over the entire facing side of the tank.
  • the connecting body 5 is located between the upper end of the main axis 9 located electric motor 3 and the hydraulic pump 1, which is received in the assembled state in the interior of the tank 7 at the lower end of the vertically extending main axis.
  • the connecting body 5 is formed in the hydraulic unit according to the invention by a compound body composed of two structural units 11 and 13, wherein the first structural unit 11 forms a supporting device on which both the electric motor 3 and the Hydraulic pump 1 are flanged, while the second structural unit 13 forms a kind of fuel cap for the open side of the tank 7.
  • Fig. 2 is the support means for electric motor 3 and hydraulic pump 1 forming structural unit 11 shown separately.
  • the Fig. 3 shows, also in a separate representation, the second structural unit 13 of the connecting body 5, which consists of a one-piece injection-molded plastic part, in the present example of a glass fiber reinforced polyamide material, such as PA6.6.
  • the structural unit 13 has a rectangular opening of the tank 9 corresponding rectangular outline with rounded corners 15, wherein in the vicinity of a corner region a through hole 17 for a tank aerator 19 (s , Fig. 1 ) is provided, which may have a ventilation filter.
  • the second structural unit 13 Coaxially to the device main axis 9, the second structural unit 13 has an opening 21, which allows the passage of the drive means from the electric motor 3 to the hydraulic pump 1.
  • the in Fig. 1 not visible motor shaft of the electric motor 3 is provided.
  • the support unit forming structural unit 11, which forms the support for both the upper-side electric motor 3 and the hydraulic pump 1, which is arranged below the tank forming the second structural unit 13 is formed by a metallic molded body, in the embodiment in shape a forging made of aluminum.
  • the second structural unit 13 forming a plate-like plastic body has recesses in the upper side, which adjoin the central opening 21 and are dimensioned in shape and depth such that the structural unit 11 forming the support means is received in the formed seat such that the carrying device with the electric motor. 3 facing top is flush.
  • the structural unit 11 has, as a fastening component for the electric motor 3 and the hydraulic pump 1, a semicircular arch part 23, at the free end of which a nose part 25 extending radially to the arch part 23 follows. At the opposite end of the arch part 23 passes into a connecting web 27, at the in Fig. 2 the right-hand end is in turn followed by a hydraulic receiving component 29. As a seat for the arch portion 23, an arcuate recess 31 is formed in the structural unit 13, which surrounds the central opening 21 and merges into an opening 21 to the radial end portion 33 which receives the nose portion 25.
  • the receiving component 29 of the first structural unit 11 forming the carrying device protrudes over the outer edge at the end of the receiving channel 51, so that hydraulic connections 55, 57 and 59 are freely accessible laterally on the aggregate, wherein the connections 55 and 57 are provided, for example, with hydraulic components.
  • hydraulic components such as switching valve 61 ( Fig. 1 ), Check valve, pressure sensor or the like may be assigned.
  • Internal fluid paths 63 in the receiving component 29 are with a located at the bottom of the connecting web 27 hydraulic input 65 in connection, which is flanged in the flanged to the hydraulic pump 1 state with the pressure-side output of the hydraulic pump 1 in connection.
  • the structure of the connecting body 5 of two structural units 11 and 13 simplifies the production, because only the structural unit 11 forming the supporting device has to be machined as a metal part, for example from an aluminum forged part.
  • the connection body 5 is thereby realized with a predominant proportion of plastic with a lightweight construction weight.
  • the invention also makes it possible to construct a modular system in which an identically designed structural unit 13, made of plastic with a metal inlay adapted to the respective hydraulic requirements and correspondingly designed, is used as a carrying device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Claims (10)

  1. Groupe hydraulique comprenant un réservoir (7) mis au bout d'un axe (9) principal de l'installation et des éléments fonctionnels, qui y sont rapportés et qui sont constitués d'au moins une pompe (1) hydraulique et d'un corps (5) de raccordement, ainsi que d'un moteur (3) électrique, pour entraîner la pompe (1) hydraulique, caractérisé en ce que le corps (5) de raccordement est composé d'au moins une unité (11) de structure et d'au moins un autre dispositif (13) de structure, caractérisé en ce que le un dispositif (11) de structure est reçu, au moins en partie, dans l'autre dispositif (13) de structure et en ce que la une unité de structure du corps (5) de raccordement a, comme dispositif (11) de support, un élément (23) de fixation pour fixer à la fois le moteur (3) électrique et la pompe (1) hydraulique, qui sont disposés sur des côtés opposés du corps (5) de raccordement.
  2. Groupe hydraulique suivant la revendication 1, caractérisé en ce que l'autre unité (13) de structure du corps (5) de raccordement ferme, au moins du côté du bord, l'ouverture libre du réservoir (7), à la manière d'un couvercle de récipient ou de réservoir, et en ce que la pompe (1) hydraulique est reçue à l'intérieur du réservoir.
  3. Groupe hydraulique suivant la revendication 1 ou 2, caractérisé en ce que le dispositif (11) de support du corps (5) de raccordement est en un matériau métallique et l'autre unité (13) de structure en une matière plastique.
  4. Groupe hydraulique suivant la revendication 3, caractérisé en ce que le dispositif (11) de support du corps (5) de raccordement est fabriqué en un matériau d'aluminium sous la forme d'une pièce coulée sous pression ou forgée et en ce que l'autre unité (13) de structure est en un polyamide renforcé par de la fibre de verre.
  5. Groupe hydraulique suivant l'une des revendications précédentes, caractérisé en ce que le dispositif (11) de support a, outre l'élément (23) de fixation, un élément (29) de réception pour fixer d'autres éléments fonctionnels.
  6. Groupe hydraulique suivant l'une des revendications précédentes, caractérisé en ce que le dispositif (11) de support est reçu dans l'autre unité (13) de structure, de manière à ménager une ouverture (21) traversante dans le corps (5) de raccordement, ouverture qui permet le passage de moyens d'entraînement entre le moteur (3) électrique et la pompe (1) hydraulique.
  7. Groupe hydraulique suivant la revendication 6, caractérisé en ce que le dispositif (11) de support délimite en forme d'arc, au moins en partie, l'ouverture (21) traversante, par son élément (23) de fixation, suivant un agencement concentrique à celui-ci, ou entoure complètement l'ouverture (21).
  8. Groupe hydraulique suivant l'une des revendications précédentes, caractérisé en ce que le dispositif (11) de support a au moins un bec (25) de pénétration à l'extrémité de sa partie en forme d'arc de son élément (23) de fixation, bec qui pénètre avec immobilisation dans un évidement (3) pouvant être associé de l'autre unité (13) de structure, avec formation d'un positionnement.
  9. Groupe hydraulique suivant l'une des revendication 6 à 8, caractérisé en ce que le dispositif (11) de support a, entre des éléments (23) de fixation et un élément (29) de réception hydraulique une entretoise (27) de liaison, qui est reçue dans un canal (51) de réception, fermé du côté du réservoir, de l'autre unité (13) de structure du corps (5) de raccordement.
  10. Groupe hydraulique suivant l'une des revendications précédentes, caractérisé en ce que le dispositif (11) de support est reçu, à affleurement dans la direction du moteur (3) électrique, dans l'autre unité (13) de structure et en ce que l'autre unité (13) de structure constitue une pièce de recouvrement de type en plaque pour la fermeture du réservoir (7) et a une ouverture (17) d'aération de l'intérieur du réservoir, pouvant être fermée.
EP16728838.0A 2015-07-08 2016-06-10 Groupe hydraulique Active EP3320210B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015008837.8A DE102015008837A1 (de) 2015-07-08 2015-07-08 Hydraulikaggregat
PCT/EP2016/000967 WO2017005338A1 (fr) 2015-07-08 2016-06-10 Groupe hydraulique

Publications (2)

Publication Number Publication Date
EP3320210A1 EP3320210A1 (fr) 2018-05-16
EP3320210B1 true EP3320210B1 (fr) 2019-08-07

Family

ID=56121019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16728838.0A Active EP3320210B1 (fr) 2015-07-08 2016-06-10 Groupe hydraulique

Country Status (4)

Country Link
EP (1) EP3320210B1 (fr)
CN (1) CN208493250U (fr)
DE (1) DE102015008837A1 (fr)
WO (1) WO2017005338A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018001725A1 (de) 2018-03-05 2019-09-05 Hydac Fluidtechnik Gmbh Anschlussvorrichtung
DE102019003342A1 (de) * 2019-05-11 2020-11-12 Hydac Fluidtechnik Gmbh Hydraulisches Antriebssystem
ES2958107T3 (es) * 2019-08-16 2024-02-01 Bucher Municipal Ag Máquina de trabajo autopropulsada sobre una superficie de suelo firme, con un grupo hidráulico montado sobre un bastidor para accionar la máquina de trabajo
EP4306724A1 (fr) 2022-07-15 2024-01-17 Yanmar Holdings Co., Ltd. Machine de travail électrique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447467A (en) * 1943-10-23 1948-08-17 Stewart Warner Corp Pump
US3982856A (en) * 1972-01-11 1976-09-28 Karl Hehl Base and power unit for injection molding machine
DE59802006D1 (de) * 1997-02-05 2001-12-13 Hoerbiger Hydraulik Hydraulisches Motorpumpenaggregat
AT410246B (de) * 1999-06-25 2003-03-25 Hoerbiger Hydraulik Radialkolbenpumpe
DE19959022C1 (de) * 1999-12-08 2001-06-21 Bosch Gmbh Robert Antriebseinheit
DE10105450A1 (de) * 2001-02-07 2002-08-08 Bosch Gmbh Robert Vorrichtung zur Förderung von Hydrauliköl, Schmieröl oder dergleichen
DE10306006B4 (de) * 2003-02-12 2005-02-24 Knapp, Jürgen Michael Hydraulikmodul
DE102008030715A1 (de) 2008-06-27 2009-12-31 Hydac Fluidtechnik Gmbh Hydraulikaggregat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102015008837A1 (de) 2017-01-12
EP3320210A1 (fr) 2018-05-16
WO2017005338A1 (fr) 2017-01-12
CN208493250U (zh) 2019-02-15

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