WO2017005338A1 - Groupe hydraulique - Google Patents

Groupe hydraulique Download PDF

Info

Publication number
WO2017005338A1
WO2017005338A1 PCT/EP2016/000967 EP2016000967W WO2017005338A1 WO 2017005338 A1 WO2017005338 A1 WO 2017005338A1 EP 2016000967 W EP2016000967 W EP 2016000967W WO 2017005338 A1 WO2017005338 A1 WO 2017005338A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
structural unit
tank
further structural
hydraulic 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.)
Ceased
Application number
PCT/EP2016/000967
Other languages
German (de)
English (en)
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
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
Priority to EP16728838.0A priority Critical patent/EP3320210B1/fr
Priority to CN201690000968.7U priority patent/CN208493250U/zh
Publication of WO2017005338A1 publication Critical patent/WO2017005338A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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.
  • 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 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.
  • the dual function of the 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.
  • the invention has the object to provide a hydraulic unit of the type mentioned, which is simple and rational producible with reduced production costs.
  • connection body is composed of at least one structural unit and at least one further structural unit, wherein the one structural unit is at least partially received in the further structural unit.
  • the one structural unit of the connection body as a carrying device can have a fastening component for fixing both the electric motor and the hydraulic pump, which are mounted on opposite lying sides of the connecting body are arranged.
  • 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 further structural unit of the connector body can close the free upper tank opening in the manner of a container or tank lid, at least 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 of a metal material, preferably made of an aluminum material as 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 makes it possible to achieve a lightweight construction in which it is possible to achieve a weight saving of approximately 50%, if, for example, 2/3 of the connection body is 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.
  • a valve device having.
  • connections for a switching valve controlling the hydraulic output and / or a check valve it is possible to provide connections for a switching valve controlling the hydraulic output 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 Closure 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 carrier device can have at least one engagement lug at the end of its arcuate part of its fastening component in a particularly advantageous manner, the engagement lug engaging in a fixable recess of the further structural unit to form a positioning.
  • the carrying device between the fastening component and a hydraulic receiving component can have a connecting web which is accommodated in a tank-side closed receiving channel of the further structural unit of the receiving 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 means 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.
  • FIG. 2 in relation to FIG. 1 enlarged drawn perspective
  • a hydraulic unit which, as far as the general construction is concerned, corresponds to the prior art disclosed in the already mentioned document DE 10 2008 030 71 5 A1.
  • a hydraulic unit which is intended in particular for the supply of lifting cylinders in preferably mobile equipment, such as conveyors and hoists, which are electrically driven.
  • functional components such as hydraulic pump 1, the driving electric motor 3 and a connector body 5 directly to a supply of pressurized fluid receiving tank. 7 grown. This is located at one end of a device main axis 9, in the example shown in Fig.
  • connection body 5 is located between the located at the upper end of the main axis 9 electric motor 3 and the hydraulic pump 1, which is received in the assembled state in the interior of the tank 7.
  • the connection body 5 is formed by a composite body composed of two structural units 1 1 and 13, wherein the first structural unit 1 1 forms a support 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 tank lid for the open side of the tank 7.
  • the support means for electric motor 3 and hydraulic pump 1 forming structural unit 1 1 is shown separately.
  • Fig. 3 shows, also in a separate representation, the second structural unit 13 of the connection body 5, which as a one-piece injection-molded plastic part, in the present example of a glass fiber reinforced polyamide material, such as PA6.6 exists.
  • the structural unit 1 3 has a free top opening of the tank 9 corresponding rectangular outline with rounded corners 1 5, wherein in the vicinity of a corner region has a through hole 1 7 for a Tankbelricher 19 (see 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 motor shaft of the electric motor 3 which is not visible in FIG. 1, is provided for this purpose.
  • the support unit forming structural unit 1 1, which forms the support for both the top of the electric motor 3 and for 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 of a forged part made of aluminum minium.
  • the structural unit 1 1 has, as a fastening component for the electric motor 3 and 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 its in Fig. 2 right-hand end, in turn, a hydraulic receiving component 29 connects. As a seat for the arch part 23, an arcuate recess 31 is formed in the structural unit 13, which surrounds the central opening 21 and merges into an end part 21 radial to the opening 21, which receives the nose part 25.
  • screw holes 35, 37, 39, 41 are provided in the bow part 23, in the nose part 25 and in the connecting web 27, of which the holes 35 and 39 are the Motor attachment and the holes 37 and 41 of the pump attachment serve by means of continuous screws, which are not shown in Fig. 1.
  • associated holes 45, 47 and 49 are formed in the recesses 31 and 33 of the structural unit.
  • a recessed, adjoining the recess 31 receiving channel 51 in the second structural unit 1 3 is formed.
  • the receiving channel 51 extends with the bottom closed 53 to the adjacent outer edge of the structural unit 1 third
  • the receiving component 29 of the first structural unit 1 1 forming the carrying device protrudes beyond 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, with the connections 55 and 57, for example hydraulic components such as switching valve 61 ( Figure 1), check valve, pressure sensor or the like may be associated.
  • Internal fluid paths 63 in the receiving component 29 are connected to a hydraulic input 65 located on the underside of the connecting web 27, which in the state flanged to the hydraulic pump 1 is in communication with the pressure-side outlet of the hydraulic pump 1.
  • connection body 5 of two structural units 1 1 and 13 simplifies the production, because only the structural unit forming the support means 1 1 must be made as a metal part in machining, for example, 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 [nodular system in which an identically designed structural unit 1 3 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)

Abstract

L'invention concerne un groupe hydraulique, notamment pour alimenter des engins de transport et de levage avec un liquide sous pression, comprenant un réservoir (7) qui se trouve à une extrémité vis-à-vis d'un axe principal de dispositif (9) et des éléments fonctionnels montés sur celui-ci, se composant d'au moins une pompe hydraulique (1) et un corps de raccordement (5) ainsi qu'un moteur électrique (3) pour entraîner la pompe hydraulique (1). Le groupe hydraulique se caractérise en ce que le corps de raccordement (5) se compose d'au moins une unité structurale (11) et d'au moins un autre agencement structural (13) et en ce qu'une unité structurale (11) est logée au moins partiellement dans l'autre agencement structural (13).
PCT/EP2016/000967 2015-07-08 2016-06-10 Groupe hydraulique Ceased WO2017005338A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16728838.0A EP3320210B1 (fr) 2015-07-08 2016-06-10 Groupe hydraulique
CN201690000968.7U CN208493250U (zh) 2015-07-08 2016-06-10 液压装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015008837.8A DE102015008837A1 (de) 2015-07-08 2015-07-08 Hydraulikaggregat
DE102015008837.8 2015-07-08

Publications (1)

Publication Number Publication Date
WO2017005338A1 true WO2017005338A1 (fr) 2017-01-12

Family

ID=56121019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/000967 Ceased WO2017005338A1 (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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020229405A1 (fr) * 2019-05-11 2020-11-19 Hydac Fluidtechnik Gmbh Système d'entraînement hydraulique
EP3779209A1 (fr) * 2019-08-16 2021-02-17 Bucher Municipal AG Groupe hydraulique monté sur un châssis destiné au fonctionnement d'un engin moteur autonome sur une surface de sol solide

Families Citing this family (2)

* 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
EP4306724A1 (fr) 2022-07-15 2024-01-17 Yanmar Holdings Co., Ltd. Machine de travail électrique

Citations (5)

* 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
DE19959022C1 (de) * 1999-12-08 2001-06-21 Bosch Gmbh Robert Antriebseinheit
EP1231385A1 (fr) * 2001-02-07 2002-08-14 Robert Bosch Gmbh Dispositif d'alimentation en huile hydraulique, huile lubrifiante ou analogues
DE102008030715A1 (de) 2008-06-27 2009-12-31 Hydac Fluidtechnik Gmbh Hydraulikaggregat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59802006D1 (de) * 1997-02-05 2001-12-13 Hoerbiger Hydraulik Hydraulisches Motorpumpenaggregat
AT410246B (de) * 1999-06-25 2003-03-25 Hoerbiger Hydraulik Radialkolbenpumpe
DE10306006B4 (de) * 2003-02-12 2005-02-24 Knapp, Jürgen Michael Hydraulikmodul

Patent Citations (5)

* 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
DE19959022C1 (de) * 1999-12-08 2001-06-21 Bosch Gmbh Robert Antriebseinheit
EP1231385A1 (fr) * 2001-02-07 2002-08-14 Robert Bosch Gmbh Dispositif d'alimentation en huile hydraulique, huile lubrifiante ou analogues
DE102008030715A1 (de) 2008-06-27 2009-12-31 Hydac Fluidtechnik Gmbh Hydraulikaggregat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020229405A1 (fr) * 2019-05-11 2020-11-19 Hydac Fluidtechnik Gmbh Système d'entraînement hydraulique
EP3779209A1 (fr) * 2019-08-16 2021-02-17 Bucher Municipal AG Groupe hydraulique monté sur un châssis destiné au fonctionnement d'un engin moteur autonome sur une surface de sol solide

Also Published As

Publication number Publication date
EP3320210B1 (fr) 2019-08-07
DE102015008837A1 (de) 2017-01-12
CN208493250U (zh) 2019-02-15
EP3320210A1 (fr) 2018-05-16

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