EP1762535A3 - Ladegerät sowie Verfahren für ein Ladegerät - Google Patents

Ladegerät sowie Verfahren für ein Ladegerät Download PDF

Info

Publication number
EP1762535A3
EP1762535A3 EP06120251A EP06120251A EP1762535A3 EP 1762535 A3 EP1762535 A3 EP 1762535A3 EP 06120251 A EP06120251 A EP 06120251A EP 06120251 A EP06120251 A EP 06120251A EP 1762535 A3 EP1762535 A3 EP 1762535A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic
boom
switching
hydraulic cylinder
lowering
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
EP06120251A
Other languages
English (en)
French (fr)
Other versions
EP1762535A2 (de
EP1762535B1 (de
Inventor
Marcus Bitter
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of EP1762535A2 publication Critical patent/EP1762535A2/de
Publication of EP1762535A3 publication Critical patent/EP1762535A3/de
Application granted granted Critical
Publication of EP1762535B1 publication Critical patent/EP1762535B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F15B11/003—Systems with load-holding valves
    • 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
    • B66F9/065—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 non-masted
    • B66F9/0655—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 non-masted with a telescopic boom
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure

Landscapes

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

Abstract

Das Ladegerät (61) umfasst eine hydraulische Anordnung zum Heben und Senken des Auslegers (70), ein Hydraulikfördermittel (30), einen Hydrauliktank (28), einen Hydraulikzylinder (10), ein mit Versorgungsleitungen (18,20) verbundenes Steuergerät (22,22') zum Ansteuern des Hydraulikzylinders (10), eine erste und eine zweite den Hydraulikzylinder (10) mit dem Hydrauliktank (28) verbindende und mit einem ersten bzw. zweiten Schaltventil (60,42) versehene Hydraulikleitung (58,40), eine hubseitige Lasthalteventileinrichtung (34) und eine Steuereinheit (54) zum Schalten der Schaltventile (60,42). Um eine Aktivierung der Schwimmstellung zu ermöglichen, ohne dass der Ausleger (70) unkontrolliert absinken kann, wird vorgeschlagen, ein die Stellung des Auslegers (70) bzw. Hydraulikzylinders (10) signalisierenden Sensor (50,50') sowie Aktivierungsmittel (56,56') für das Schalten in eine Schwimmstellung und regelbare Steuermittel zum Absenken des Auslegers (70) vorzusehen, wobei die Steuereinheit (54) derart ausgebildet ist, dass das Absenken des Auslegers (70) und/oder das Schalten in die Schwimmstellung in Abhängigkeit von einem von dem Sensor (50,50') gelieferten Signal erfolgt.
EP06120251.1A 2005-09-13 2006-09-07 Ladegerät sowie Verfahren für ein Ladegerät Expired - Fee Related EP1762535B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005043447A DE102005043447A1 (de) 2005-09-13 2005-09-13 Ladegerät sowie Verfahren für ein Ladegerät

Publications (3)

Publication Number Publication Date
EP1762535A2 EP1762535A2 (de) 2007-03-14
EP1762535A3 true EP1762535A3 (de) 2009-01-07
EP1762535B1 EP1762535B1 (de) 2014-07-16

Family

ID=37429223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06120251.1A Expired - Fee Related EP1762535B1 (de) 2005-09-13 2006-09-07 Ladegerät sowie Verfahren für ein Ladegerät

Country Status (3)

Country Link
US (1) US7430953B2 (de)
EP (1) EP1762535B1 (de)
DE (1) DE102005043447A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042372A1 (de) 2006-09-08 2008-03-27 Deere & Company, Moline Ladegerät
DE102007018405B4 (de) * 2007-04-17 2022-09-15 Alpha Fluid Hydrauliksysteme Müller GmbH Elektrohydraulische Ansteuerung
US8474254B2 (en) * 2008-11-06 2013-07-02 Purdue Research Foundation System and method for enabling floating of earthmoving implements
US8631651B2 (en) * 2009-01-21 2014-01-21 Manitowoc Crane Companies, Llc Hydraulic system thermal contraction compensation apparatus and method
US8858151B2 (en) * 2011-08-16 2014-10-14 Caterpillar Inc. Machine having hydraulically actuated implement system with down force control, and method
US9115736B2 (en) * 2011-12-30 2015-08-25 Cnh Industrial America Llc Work vehicle fluid heating system
KR20140111286A (ko) * 2012-01-05 2014-09-18 파커-한니핀 코포레이션 플로트 기능을 갖는 전기 유압 시스템
US9890024B2 (en) 2016-04-08 2018-02-13 Oshkosh Corporation Leveling system for lift device
IT201700047745A1 (it) * 2017-05-03 2018-11-03 Cnh Ind Italia Spa Veicolo provvisto di un braccio comprendente un circuito di controllo idraulico avente una valvola di controllo di carico
JP6960585B2 (ja) * 2018-12-03 2021-11-05 Smc株式会社 流量コントローラ及びそれを備えた駆動装置
IT201900005056A1 (it) * 2019-04-04 2020-10-04 Nem S R L Circuito idraulico di azionamento per macchina operatrice con articolazione meccanica dotata di funzione flottante.
DE102020131046A1 (de) 2020-11-24 2022-05-25 Buchholz Hydraulik Gmbh Hydraulisches Hubsystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19853523C1 (de) * 1998-11-20 2000-03-09 Schaeff Karl Gmbh & Co Fahrbarer Schaufellader
DE10149787A1 (de) * 2000-10-23 2002-05-29 Linde Ag Ventilanordnung mit Schwimmstellung
EP1450048A1 (de) * 2003-02-21 2004-08-25 Deere & Company Ventilanordnung
EP1496009A1 (de) * 2003-07-05 2005-01-12 Deere & Company Hydraulische Federung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472127A (en) * 1967-12-12 1969-10-14 Caterpillar Tractor Co Control circuit for bulldozers used in pushing
US5415076A (en) * 1994-04-18 1995-05-16 Caterpillar Inc. Hydraulic system having a combined meter-out and regeneration valve assembly
DE10006908A1 (de) * 2000-02-16 2001-08-23 Caterpillar Sarl Genf Geneva Hydraulische Kolbenzylindereinheit für landwirtschaftliche Arbeitsmaschinen
DE10340504B4 (de) * 2003-09-03 2006-08-24 Sauer-Danfoss Aps Ventilanordnung zur Steuerung eines Hydraulikantriebs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19853523C1 (de) * 1998-11-20 2000-03-09 Schaeff Karl Gmbh & Co Fahrbarer Schaufellader
DE10149787A1 (de) * 2000-10-23 2002-05-29 Linde Ag Ventilanordnung mit Schwimmstellung
EP1450048A1 (de) * 2003-02-21 2004-08-25 Deere & Company Ventilanordnung
EP1496009A1 (de) * 2003-07-05 2005-01-12 Deere & Company Hydraulische Federung

Also Published As

Publication number Publication date
US7430953B2 (en) 2008-10-07
EP1762535A2 (de) 2007-03-14
US20070056280A1 (en) 2007-03-15
DE102005043447A1 (de) 2007-03-15
EP1762535B1 (de) 2014-07-16

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