EP2218675A3 - Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine - Google Patents

Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine Download PDF

Info

Publication number
EP2218675A3
EP2218675A3 EP10000411.8A EP10000411A EP2218675A3 EP 2218675 A3 EP2218675 A3 EP 2218675A3 EP 10000411 A EP10000411 A EP 10000411A EP 2218675 A3 EP2218675 A3 EP 2218675A3
Authority
EP
European Patent Office
Prior art keywords
drive system
pump
work machine
mobile work
valve
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.)
Withdrawn
Application number
EP10000411.8A
Other languages
English (en)
French (fr)
Other versions
EP2218675A2 (de
Inventor
Markus Schwab
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.)
STILL GmbH
Original Assignee
STILL 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 STILL GmbH filed Critical STILL GmbH
Publication of EP2218675A2 publication Critical patent/EP2218675A2/de
Publication of EP2218675A3 publication Critical patent/EP2218675A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/162—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Die Erfindung betrifft ein hydrostatisches Antriebssystem einer mobilen Arbeitsmaschine, insbesondere eines Flurförderzeugs, mit einer Pumpe (1) und mindestens einem von der Pumpe (1) versorgbaren Verbraucher einer Arbeitshydraulik (2), der mittels eines elektro-hydraulisch betätigbaren Steuerventils (11), insbesondere eines Wegeventils, betätigbar ist, wobei zur Betätigung des Steuerventils (11) mindestens ein elektrisch betätigbares Vorsteuerventil vorgesehen ist, das mit einer Steuerdruckversorgungsleitung (25) in Verbindung steht. Zur Lösung der Aufgabe, ein derartiges Antriebssystem zur Verfügung zu stellen, dass hinsichtlich des Energieverbrauchs und der Wärmebelastung des Druckmittels verbessert ist und einen geringen Bauaufwand aufweist, wird erfindungsgemäß vorgeschlagen, dass zur Erzeugung des in der Steuerdruckversorgungsleitung (25) anstehenden Steuerdrucks ein mit der Förderleitung (4) der Pumpe (1) in Verbindung stehendes Druckminderventil (26) vorgesehen ist.
EP10000411.8A 2009-02-11 2010-01-18 Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine Withdrawn EP2218675A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009008514.9A DE102009008514B4 (de) 2009-02-11 2009-02-11 Hydrostatisches Antriebssystem einer mobilen Arbeitsmaschine

Publications (2)

Publication Number Publication Date
EP2218675A2 EP2218675A2 (de) 2010-08-18
EP2218675A3 true EP2218675A3 (de) 2013-10-16

Family

ID=42198929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10000411.8A Withdrawn EP2218675A3 (de) 2009-02-11 2010-01-18 Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine

Country Status (2)

Country Link
EP (1) EP2218675A3 (de)
DE (1) DE102009008514B4 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011056068B4 (de) 2011-12-06 2022-08-11 Still Gesellschaft Mit Beschränkter Haftung Hydrauliksystem einer mobilen Arbeitsmaschine
DE102011056069B4 (de) 2011-12-06 2022-08-04 Still Gesellschaft Mit Beschränkter Haftung Verfahren zum Betrieb eines Hydrauliksystems einer mobilen Arbeitsmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524213A (en) * 1978-08-04 1980-02-21 Diesel Kiki Co Ltd Apparatus for controlling speed of hydraulic actuator for remote control
US4343151A (en) * 1980-05-16 1982-08-10 Caterpillar Tractor Co. Series - parallel selector for steering and implement
US4635440A (en) * 1983-06-14 1987-01-13 Linde Aktiengesellschaft Dual consumer hydraulic mechanisms
US5060475A (en) * 1990-05-29 1991-10-29 Caterpillar Inc. Pilot control circuit for load sensing hydraulic systems
DE10047631A1 (de) * 2000-09-26 2002-04-11 Linde Ag Hydrauliksystem für ein Flurförderzeug
DE10224731A1 (de) * 2001-06-29 2003-01-16 Linde Ag Hydrostatisches Antriebssystem
DE10151831A1 (de) * 2001-10-20 2003-05-08 Still Gmbh Hydraulikanlage für ein Flurförderzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708570C2 (de) 1987-03-17 1995-11-16 Bosch Gmbh Robert Elektrohydraulische Einrichtung zum Betätigen eines in einer Gehäusebohrung verschiebbaren kolbenartigen Teils
DE3905654C2 (de) 1989-02-24 1998-10-29 Bosch Gmbh Robert Hydraulische Steuervorrichtung
DE19748782A1 (de) 1997-11-05 1999-05-06 Clark Material Handling Gmbh Hydraulische Hubvorrichtung für batteriegetriebene Flurförderzeuge oder dergleichen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524213A (en) * 1978-08-04 1980-02-21 Diesel Kiki Co Ltd Apparatus for controlling speed of hydraulic actuator for remote control
US4343151A (en) * 1980-05-16 1982-08-10 Caterpillar Tractor Co. Series - parallel selector for steering and implement
US4635440A (en) * 1983-06-14 1987-01-13 Linde Aktiengesellschaft Dual consumer hydraulic mechanisms
US5060475A (en) * 1990-05-29 1991-10-29 Caterpillar Inc. Pilot control circuit for load sensing hydraulic systems
DE10047631A1 (de) * 2000-09-26 2002-04-11 Linde Ag Hydrauliksystem für ein Flurförderzeug
DE10224731A1 (de) * 2001-06-29 2003-01-16 Linde Ag Hydrostatisches Antriebssystem
DE10151831A1 (de) * 2001-10-20 2003-05-08 Still Gmbh Hydraulikanlage für ein Flurförderzeug

Also Published As

Publication number Publication date
DE102009008514B4 (de) 2019-08-14
EP2218675A2 (de) 2010-08-18
DE102009008514A1 (de) 2010-08-12

Similar Documents

Publication Publication Date Title
EP2233641A3 (de) Hydraulische Steueranordnung für die Bohle eines Strassenfertigers
EP3339516A3 (de) System und verfahren zur steuerung eines arbeitsfahrzeugs
WO2010141405A4 (en) Hydraulic oilfield lift pump
EP4310263A3 (de) Potenzielle energierückgewinnung aus dem ausleger eines hydraulikbaggers
EP2256260A3 (de) Steuergerät für die Leistung einer hydraulischen Pumpe und Arbeitsmaschine damit
EP3305994A3 (de) Steuerungssystem für baumaschinen und steuerungsverfahren für baumaschinen
EP2374692A3 (de) Mobile Arbeitsmaschine, insbesondere Flurörderzeug
EP1577257A3 (de) Hydraulische Hubvorrichtung für batteriebetriebene Flurförderzeuge
EP2628862A3 (de) Mobile Arbeitsmaschine mit Energierückgewinnung zum Antrieb der Motorkühlung
US20150090132A1 (en) Hydraulic extrusion press and method for operating a hydraulic extrusion press
EP2503161A3 (de) Hydraulische Steuerventileinrichtung
EP2375086A3 (de) Hydraulische Anlage
EP1970571A3 (de) Hydraulikschaltung einer Baumaschine
EP2218675A3 (de) Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine
EP2287105A3 (de) Vorrichtung zum Heben und Senken von Lasten
EP2384968A3 (de) Blattwinkelverstellmechanismus
EP2698545A3 (de) Einrichtung zum Steuern des Ladezustandes mindestens eines Druckspeichers
EP2952638A3 (de) Hybridbaumaschine
EP2886382A3 (de) Antriebssystem, insbesondere für eine selbstfahrende Baumaschine, insbesondere Bodenverdichter
EP2444360A3 (de) Load-Sensing geregeltes hydrostatisches Antriebssystem
EP3095999A3 (de) Hydrostatisches antriebssystem
CN203346002U (zh) 手动、自动双用液压千斤顶
WO2015140116A8 (de) Hydrostatische radialkolbenmaschine
EP2256082A3 (de) Hydrostatisches Antriebssystem einer mobilen Arbeitsmaschine
WO2011078588A3 (ko) 건설장비의 펌프제어 작동시스템

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: B66F 9/22 20060101AFI20130909BHEP

Ipc: F15B 11/028 20060101ALI20130909BHEP

Ipc: F15B 20/00 20060101ALI20130909BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140417