EP1897846A3 - Charging device - Google Patents

Charging device Download PDF

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Publication number
EP1897846A3
EP1897846A3 EP07115419A EP07115419A EP1897846A3 EP 1897846 A3 EP1897846 A3 EP 1897846A3 EP 07115419 A EP07115419 A EP 07115419A EP 07115419 A EP07115419 A EP 07115419A EP 1897846 A3 EP1897846 A3 EP 1897846A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic
charger
control pressure
sensor
control
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
EP07115419A
Other languages
German (de)
French (fr)
Other versions
EP1897846A2 (en
EP1897846B1 (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 EP1897846A2 publication Critical patent/EP1897846A2/en
Publication of EP1897846A3 publication Critical patent/EP1897846A3/en
Application granted granted Critical
Publication of EP1897846B1 publication Critical patent/EP1897846B1/en
Not-in-force 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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • 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

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) zum Betätigen des Auslegers (14, 72) und/oder eines am Ausleger (14, 72) befestigten Werkzeugs (26), wobei die hydraulische Anordnung (36) wenigstens einen Hydraulikzylinder (24), wenigstens ein hydraulisch ansteuerbares Steuergerät (42) zur Steuerung des wenigstens einen Hydraulikzylinders (24), eine hydromechanische Betätigungseinrichtung (34) zur Generierung von hydraulischen Steuerdrucksignalen für das wenigstens eine Steuergerät (42), eine Hydraulikquelle (28), einen Hydrauliktank (30) und eine elektronische Steuereinheit (64) aufweist.A charger is described. The charger (10) comprises a hydraulically operated boom (14, 72), a sensor (66) for monitoring the load state on the charger (10) and a hydraulic arrangement (36) for actuating the boom (14, 72) and / or the hydraulic assembly (36) at least one hydraulic cylinder (24), at least one hydraulically controllable control device (42) for controlling the at least one hydraulic cylinder (24), a hydromechanical actuator (34 ) for generating hydraulic control pressure signals for the at least one control device (42), 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 mit wenigstens einer zwischen der Betätigungseinrichtung (34) und dem Steuergerät (42) verlaufenden Steuerdruckleitung (54, 56) den Steuerdruck variierende Mittel (62, 62') verbunden sind, mit welchen in Abhängigkeit von einem von dem Sensor (66) gelieferten Sensorsignal der von der Betätigungseinrichtung (34) generierte Steuerdruck variierbar ist.

Figure imgaf001
In order to force a slower actuation of the hydraulic cylinders (24) when approaching a critical load condition, it is proposed that with at least one control pressure line (54, 56) extending between the actuating device (34) and the control unit (42), the control pressure varying agent ( 62, 62 ') are connected, by means of which, in response to a sensor signal supplied by the sensor (66), the control pressure generated by the actuating device (34) is variable.
Figure imgaf001
EP07115419A 2006-09-08 2007-08-31 Charging device Not-in-force EP1897846B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006042370A DE102006042370A1 (en) 2006-09-08 2006-09-08 charger

Publications (3)

Publication Number Publication Date
EP1897846A2 EP1897846A2 (en) 2008-03-12
EP1897846A3 true EP1897846A3 (en) 2009-06-17
EP1897846B1 EP1897846B1 (en) 2012-06-06

Family

ID=38683492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07115419A Not-in-force EP1897846B1 (en) 2006-09-08 2007-08-31 Charging device

Country Status (5)

Country Link
US (1) US7717664B2 (en)
EP (1) EP1897846B1 (en)
JP (1) JP5383985B2 (en)
DE (1) DE102006042370A1 (en)
ES (1) ES2389135T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4823767B2 (en) * 2006-05-31 2011-11-24 日立建機株式会社 Double-arm work machine
CA2815333C (en) * 2010-11-12 2015-05-19 Jlg Industries, Inc. Longitudinal stability monitoring system
EP2661409B1 (en) * 2011-01-04 2016-12-28 Crown Equipment Corporation Materials handling vehicle having a manifold located on a power unit for maintaining fluid pressure at an output port at a commanded pressure corresponding to an auxiliary device operating pressure
NL2006021C2 (en) * 2011-01-18 2012-07-19 Johannes Gerardus Bleekman LIFTING DEVICE AND HYDRAULIC SYSTEM THEREFOR, AND METHOD FOR ADJUSTING THEM.
ITTO20110399A1 (en) * 2011-05-06 2012-11-07 Merlo Project Srl LIFTING VEHICLE
WO2016155561A1 (en) * 2015-03-27 2016-10-06 江苏省电力公司常州供电公司 Amplitude limiting system of insulated aerial work platform
CA170432S (en) * 2016-04-06 2017-11-23 Manitou Bf FORKLIFT
US10401249B2 (en) 2016-10-11 2019-09-03 Caterpillar Inc. Methods and systems for detecting unbalanced payload condition in machines
USD1001412S1 (en) * 2022-10-11 2023-10-10 Manitou Bf Forklift truck

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05202535A (en) * 1992-01-29 1993-08-10 Komatsu Ltd Overturning-proof device of hydraulic shovel
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
EP1612184A2 (en) * 2004-06-29 2006-01-04 Plustech Oy Loading machine with overload protection

Family Cites Families (9)

* 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
JPS5819825B2 (en) * 1975-08-29 1983-04-20 株式会社クボタ Shovel loader Tenboushisouchi
US4316697A (en) * 1978-12-13 1982-02-23 Kabushiki Kaisha Komatsu Seisakusho Front-loading hydraulic excavator
JP2996762B2 (en) * 1991-04-16 2000-01-11 株式会社小松製作所 Work machine interference prevention circuit
JPH08302753A (en) * 1995-05-12 1996-11-19 Hitachi Constr Mach Co Ltd Hydraulic construction equipment
JPH11293712A (en) * 1998-04-14 1999-10-26 Hitachi Constr Mach Co Ltd Hydraulic controller
JP2004131208A (en) * 2002-10-08 2004-04-30 Hitachi Constr Mach Co Ltd Wheel type working machine
JP4034763B2 (en) * 2004-07-12 2008-01-16 有限会社ホロキタ Semi-trailer
US7210292B2 (en) * 2005-03-30 2007-05-01 Caterpillar Inc Hydraulic system having variable back pressure control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05202535A (en) * 1992-01-29 1993-08-10 Komatsu Ltd Overturning-proof device of hydraulic shovel
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
EP1612184A2 (en) * 2004-06-29 2006-01-04 Plustech Oy Loading machine with overload protection

Also Published As

Publication number Publication date
ES2389135T8 (en) 2012-11-08
EP1897846A2 (en) 2008-03-12
EP1897846B1 (en) 2012-06-06
US20080063501A1 (en) 2008-03-13
US7717664B2 (en) 2010-05-18
DE102006042370A1 (en) 2008-03-27
JP2008063935A (en) 2008-03-21
JP5383985B2 (en) 2014-01-08
ES2389135T3 (en) 2012-10-23

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