EP1897847A3 - Charging device - Google Patents

Charging device Download PDF

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Publication number
EP1897847A3
EP1897847A3 EP07115448A EP07115448A EP1897847A3 EP 1897847 A3 EP1897847 A3 EP 1897847A3 EP 07115448 A EP07115448 A EP 07115448A EP 07115448 A EP07115448 A EP 07115448A EP 1897847 A3 EP1897847 A3 EP 1897847A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic
hydraulic cylinder
charger
sensor
piston
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
EP07115448A
Other languages
German (de)
French (fr)
Other versions
EP1897847A2 (en
EP1897847B1 (en
Inventor
Marcus Bitter
Richard Tudor
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 EP1897847A2 publication Critical patent/EP1897847A2/en
Publication of EP1897847A3 publication Critical patent/EP1897847A3/en
Application granted granted Critical
Publication of EP1897847B1 publication Critical patent/EP1897847B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/20Means for actuating or controlling masts, platforms, or forks
    • B66F9/22Hydraulic devices or systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F17/00Safety devices, e.g. for limiting or indicating lifting force
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/24Safety devices, e.g. for preventing overload
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003Systems with load-holding valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/505Pressure control characterised by the type of pressure control means
    • F15B2211/50509Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545Pressure 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

Abstract

Es wird ein Ladegerät beschrieben. Das Ladegerät (10) umfasst einen hydraulisch betätigbaren Ausleger (14, 72), einen Sensor (66) zur Überwachung des Lastzustands am Ladegerät (10) und eine hydraulische Anordnung (36, 36') zum Betätigen des Auslegers (14, 72) und/oder eines am Ausleger (14, 72) befestigten Werkzeugs (26), wobei die hydraulische Anordnung (36, 36') wenigstens einen Hydraulikzylinder (24) mit einer stangenseitigen und einer kolbenseitigen Versorgungsleitung (38, 40), wenigstens ein mechanisch schaltbares Steuergerät (42) zur Steuerung des wenigstens einen Hydraulikzylinders (24), eine Hydraulikquelle (28), einen Hydrauliktank (30) und eine elektronische Steuereinheit (64) aufweist.A charger is described. The charger (10) comprises a hydraulically actuatable arm (14, 72), a sensor (66) for monitoring the load condition on the charger (10) and a hydraulic arrangement (36, 36 ') for actuating the arm (14, 72) and or a tool (26) attached to the boom (14, 72), wherein the hydraulic arrangement (36, 36 ') comprises at least one hydraulic cylinder (24) with a rod-side and a piston-side supply line (38, 40), at least one mechanically switchable control device (42) for controlling the at least one hydraulic cylinder (24), a hydraulic source (28), a hydraulic tank (30) and an electronic control unit (64).

Um ein verlangsamtes Betätigen der Hydraulikzylinder (24) bei einem sich Annähern an einen kritischen Lastzustand zu erzwingen wird vorgeschlagen, dass zwischen dem Steuergerät (42) und dem Hydraulikzylinder (24) Volumenstrom begrenzende Mittel (62) vorgesehen sind, mit denen in Abhängigkeit von einem von dem Sensor (66) gelieferten Sensorsignal ein Volumenstrom in wenigstens einer der stangenseitigen oder kolbenseitigen Versorgungsleitungen (38, 40) des Hydraulikzylinders (24) begrenzbar ist.

Figure imgaf001
In order to force a slowed actuation of the hydraulic cylinder (24) in an approach to a critical load condition, it is proposed that between the control unit (42) and the hydraulic cylinder (24) volume flow limiting means (62) are provided with which in response to a a volume flow in at least one of the rod-side or piston-side supply lines (38, 40) of the hydraulic cylinder (24) can be limited by the sensor signal supplied by the sensor (66).
Figure imgaf001

EP07115448A 2006-09-08 2007-08-31 Charging device Not-in-force EP1897847B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006042372A DE102006042372A1 (en) 2006-09-08 2006-09-08 charger

Publications (3)

Publication Number Publication Date
EP1897847A2 EP1897847A2 (en) 2008-03-12
EP1897847A3 true EP1897847A3 (en) 2009-06-17
EP1897847B1 EP1897847B1 (en) 2012-06-06

Family

ID=38683486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07115448A Not-in-force EP1897847B1 (en) 2006-09-08 2007-08-31 Charging device

Country Status (5)

Country Link
US (1) US7845896B2 (en)
EP (1) EP1897847B1 (en)
JP (1) JP5503103B2 (en)
DE (1) DE102006042372A1 (en)
ES (1) ES2389136T3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1402191B1 (en) * 2010-09-23 2013-08-28 Merlo Project Srl LIFTING VEHICLE.
ES2582045T3 (en) * 2010-11-12 2016-09-08 Jlg Industries Inc. Longitudinal stability monitoring system
ITTO20110399A1 (en) * 2011-05-06 2012-11-07 Merlo Project Srl LIFTING VEHICLE
DE102011101553A1 (en) * 2011-05-14 2012-11-15 Robert Bosch Gmbh hoist
JP6177562B2 (en) * 2013-03-28 2017-08-09 三菱日立パワーシステムズ株式会社 Hydraulic device and prime mover
EP2829504A1 (en) * 2013-07-23 2015-01-28 Palfinger Platforms GmbH Method for controlling a working machine and hydraulic system for a lifting work platform
EP3181763A1 (en) * 2015-12-15 2017-06-21 Caterpillar Global Mining LLC Hydraulic clam actuator valve block
DE102016205582A1 (en) * 2016-04-05 2017-10-05 Robert Bosch Gmbh Hydraulic drive device with regeneration operation
US10626576B2 (en) 2016-12-16 2020-04-21 Clark Equipment Company Loader with telescopic lift arm
IT201700047745A1 (en) * 2017-05-03 2018-11-03 Cnh Ind Italia Spa VEHICLE EQUIPPED WITH AN ARM INCLUDING A HYDRAULIC CONTROL CIRCUIT WITH A LOAD CONTROL VALVE
USD832551S1 (en) 2017-10-12 2018-10-30 Clark Equipment Company Loader
USD832552S1 (en) 2017-10-12 2018-10-30 Clark Equipment Company Lift arm for loader
CN108455487A (en) * 2018-03-16 2018-08-28 王静 A kind of hand steered hydraulic pressure handling device and its application method
FR3083536B1 (en) * 2018-07-05 2021-06-11 Guima Palfinger LIFTING DEVICE INCLUDING A PERFECTED HYDRAULIC CIRCUIT TO AUTHORIZE A QUICK DUMP RETURN PHASE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580007A1 (en) * 1992-07-21 1994-01-26 A. WEBER ANLAGENBAU GmbH & Co. KG Device for controlling the pivoting of a jib the effective length of which is variable
DE19853523C1 (en) * 1998-11-20 2000-03-09 Schaeff Karl Gmbh & Co Shovel loader vehicle e.g. for loading high-sided truck, has intermediate arm between load shovel and pivoted arm adjusted in dependence on position of latter for holding load shovel in parallel position
WO2004007339A1 (en) * 2002-07-12 2004-01-22 J.C. Bamford Excavators Limited Control system for a load handling apparatus
EP1496009A1 (en) * 2003-07-05 2005-01-12 Deere & Company Hydraulic suspension
EP1612184A2 (en) * 2004-06-29 2006-01-04 Plustech Oy Loading machine with overload protection
EP1762535A2 (en) * 2005-09-13 2007-03-14 Deere & Company Loader and method for loader

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1528741A (en) * 1974-10-12 1978-10-18 Liner Concrete Machinery Load handling vehicle
JPH10310394A (en) * 1997-05-15 1998-11-24 Toyota Autom Loom Works Ltd Tilt control device for fork lift truck
JP2001226096A (en) * 2000-02-15 2001-08-21 Komatsu Forklift Co Ltd Overturning alarm device and safety device against overturning for industrial vehicle
US7204084B2 (en) * 2004-10-29 2007-04-17 Caterpillar Inc Hydraulic system having a pressure compensator
SE531309C2 (en) * 2006-01-16 2009-02-17 Volvo Constr Equip Ab Control system for a working machine and method for controlling a hydraulic cylinder of a working machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580007A1 (en) * 1992-07-21 1994-01-26 A. WEBER ANLAGENBAU GmbH & Co. KG Device for controlling the pivoting of a jib the effective length of which is variable
DE19853523C1 (en) * 1998-11-20 2000-03-09 Schaeff Karl Gmbh & Co Shovel loader vehicle e.g. for loading high-sided truck, has intermediate arm between load shovel and pivoted arm adjusted in dependence on position of latter for holding load shovel in parallel position
WO2004007339A1 (en) * 2002-07-12 2004-01-22 J.C. Bamford Excavators Limited Control system for a load handling apparatus
EP1496009A1 (en) * 2003-07-05 2005-01-12 Deere & Company Hydraulic suspension
EP1612184A2 (en) * 2004-06-29 2006-01-04 Plustech Oy Loading machine with overload protection
EP1762535A2 (en) * 2005-09-13 2007-03-14 Deere & Company Loader and method for loader

Also Published As

Publication number Publication date
US7845896B2 (en) 2010-12-07
JP2008063142A (en) 2008-03-21
EP1897847A2 (en) 2008-03-12
ES2389136T3 (en) 2012-10-23
DE102006042372A1 (en) 2008-03-27
US20080073155A1 (en) 2008-03-27
JP5503103B2 (en) 2014-05-28
EP1897847B1 (en) 2012-06-06

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