EP1614814A2 - Excavatrice et machine pour le transfert de matériel. - Google Patents
Excavatrice et machine pour le transfert de matériel. Download PDFInfo
- Publication number
- EP1614814A2 EP1614814A2 EP05014569A EP05014569A EP1614814A2 EP 1614814 A2 EP1614814 A2 EP 1614814A2 EP 05014569 A EP05014569 A EP 05014569A EP 05014569 A EP05014569 A EP 05014569A EP 1614814 A2 EP1614814 A2 EP 1614814A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- excavator
- material handling
- hydraulic cylinder
- additional
- 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- Withdrawn
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Images
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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- 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
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- 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
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
Definitions
- the invention relates to excavators and machines for material handling with a movable element via at least one hydraulic cylinder.
- FIG. 1 a detail of an excavator and machines for material handling is shown by way of example according to the prior art.
- a boom 12 is hinged to a revolving platform 10 of an excavator, which is movable over two pairs of hydraulic cylinders 14.
- the Hydraulic cylinder pairs are interconnected, as can be seen from the hydraulic circuit diagram according to FIG. 1a.
- the object of the present invention is therefore to provide an excavator or a machine for material handling according to the preamble of claim 1, wherein as much as possible of the energy used to lift the equipment and the attachment tool can be stored for successive working cycles.
- this object is achieved in that, in addition to the at least one hydraulic cylinder present for moving the movable elements, one or more additional hydraulic cylinders are articulated to the element to be moved, wherein the one or more additional hydraulic cylinders are connected to one or more own hydraulic accumulators.
- These additional hydraulic cylinders can be arranged parallel to the already existing at least one hydraulic cylinder, but it can also be mounted elsewhere.
- the additional hydraulic cylinders do not engage in the hydraulic system, but are connected on the piston side with a hydraulic accumulator, which may consist of a piston or bladder accumulator.
- the element to be moved may be a boom or a stick of the excavator or the material handling machine.
- the additional hydraulic cylinder (s) may be interposed between two hydraulic cylinders used to move the element, i. H. serve the boom or the stem, be arranged.
- the memory is loaded during the downward movement of the equipment.
- the stored energy then supports the upward movement of the equipment.
- the equipment weight can be at least partially compensated.
- the one or more hydraulic cylinders can be connected via a switchable valve to the main hydraulic circuit of the excavator or machine for material handling.
- a switchable valve to the main hydraulic circuit of the excavator or machine for material handling.
- the number of additional hydraulic cylinders can be interconnected advantageous in a multi-unit equipment and providing more than one additional hydraulic cylinder.
- the additional hydraulic cylinder of the handle can be fed, so that the handle is supported during extension and vice versa.
- the solution according to the invention of the object stated at the outset leads to a number of advantages.
- the main hydraulic cylinders used since then can be dimensioned smaller. Overall, less energy is needed from the diesel engine to lift. Higher working speeds are possible.
- the engine can theoretically have less power or, if it has a higher one Performance, he can work in part-load range. Overall, less energy must be dissipated through the radiator. The machine efficiency can be increased significantly. This can reduce fuel consumption. This in turn leads to a reduction in operating costs.
- the bearing loads of the hydraulic cylinder can be distributed from usually four to six bearings. Due to the provision of his or her own memory for the additional hydraulic cylinder or cylinders, an active feed into the main hydraulic circuit is not necessary. As a result, no complex hydraulic circuits are necessary.
- FIG. 2 A detail of a hydraulic excavator is shown by way of example with reference to FIG. 2 for an excavator and material handling machines.
- a boom 12 is pivotally hinged to a revolving platform 10, wherein the pivoting up and down of the Jib 12 via hydraulic cylinder 14 takes place.
- an additional hydraulic cylinder 16 is arranged centrally. It can be seen from the hydraulic circuit diagram according to FIG. 2a that the hydraulic cylinders 14 are connected to one another in a similar manner, as is already known from the prior art (cf., FIG. 1a).
- an additional hydraulic cylinder 16 is provided, whose piston side 18 is connected to a hydraulic accumulator 20, which may be, for example, a piston or bladder accumulator.
- the additional hydraulic cylinder 16 is independent of the hydraulic cylinders 14.
- the hydraulic cylinder 16 serves to displace the hydraulic fluid by means of the piston 22 in the direction of the hydraulic accumulator 20 as the equipment moves downwards. The energy is stored here until the boom 12 is to be moved up again.
- the additional hydraulic cylinder 16 the stored energy in the memory 20 is released again, so that a large part of the mass force of the boom and the attached thereto stem or equipment is compensated and no longer has to be applied by the hydraulic cylinders 14.
- FIG. 3 In the hydraulic circuit diagram of FIG. 3 is a basically similar embodiment variant, as in the hydraulic circuit diagram according to the embodiment of FIG. 2a.
- the additional hydraulic cylinder 16 which is likewise connected here to a hydraulic accumulator 20, via appropriate switching valves 22 and 24, an optional connection to the main hydraulic circuit, via which the hydraulic cylinders 14 are supplied, is possible.
- the additional hydraulic cylinder 16 can be switched into the main hydraulic circuit. This may be desirable, for example, if the memory 20 is defective and if the hydraulic excavator defies this defect continuously continue to work until it can be repaired.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
- Shovels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032868A DE102004032868A1 (de) | 2004-07-07 | 2004-07-07 | Bagger und Maschine zum Materialumschlag |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1614814A2 true EP1614814A2 (fr) | 2006-01-11 |
EP1614814A3 EP1614814A3 (fr) | 2007-05-02 |
Family
ID=35033735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05014569A Withdrawn EP1614814A3 (fr) | 2004-07-07 | 2005-07-05 | Excavatrice et machine pour le transfert de matériel. |
Country Status (3)
Country | Link |
---|---|
US (2) | US7434391B2 (fr) |
EP (1) | EP1614814A3 (fr) |
DE (1) | DE102004032868A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012013253A1 (fr) * | 2010-07-27 | 2012-02-02 | Hydac Technology Gmbh | Dispositif pour la récupération d'énergie |
EP2690292A1 (fr) * | 2011-03-21 | 2014-01-29 | Shuanglai Yang | Système de relevage et procédé de relevage pour la flèche d'un engin de chantier, et engin de chantier pour ce procédé |
EP2148014A3 (fr) * | 2008-07-24 | 2016-06-22 | Liebherr-Hydraulikbagger GmbH | Appareil de travail |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE492730T1 (de) * | 2008-04-29 | 2011-01-15 | Parker Hannifin Ab | Anordnung zum bedienen einer hydraulischen vorrichtung |
DE202008013896U1 (de) | 2008-10-17 | 2010-03-11 | Liebherr-Hydraulikbagger Gmbh | Verfahrbares Arbeitsgerät |
EP2278167B1 (fr) * | 2009-07-23 | 2013-11-13 | Q Plus Beheer B.V. | Procédé de fonctionnement d'un système pneumatique et système pneumatique |
DE102010051650A1 (de) * | 2010-11-17 | 2012-05-24 | Liebherr-Hydraulikbagger Gmbh | Arbeitsgerät |
DE102011008145B3 (de) * | 2011-01-08 | 2012-02-02 | Parker Hannifin Gmbh | Energieeffizienter hydraulischer Antrieb für die Linearbewegung eines Massekörpers |
US8944103B2 (en) | 2011-08-31 | 2015-02-03 | Caterpillar Inc. | Meterless hydraulic system having displacement control valve |
US8863509B2 (en) | 2011-08-31 | 2014-10-21 | Caterpillar Inc. | Meterless hydraulic system having load-holding bypass |
US8966892B2 (en) | 2011-08-31 | 2015-03-03 | Caterpillar Inc. | Meterless hydraulic system having restricted primary makeup |
US9051714B2 (en) | 2011-09-30 | 2015-06-09 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US9057389B2 (en) | 2011-09-30 | 2015-06-16 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US8966891B2 (en) | 2011-09-30 | 2015-03-03 | Caterpillar Inc. | Meterless hydraulic system having pump protection |
US9151018B2 (en) | 2011-09-30 | 2015-10-06 | Caterpillar Inc. | Closed-loop hydraulic system having energy recovery |
US8978374B2 (en) | 2011-10-21 | 2015-03-17 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8919114B2 (en) | 2011-10-21 | 2014-12-30 | Caterpillar Inc. | Closed-loop hydraulic system having priority-based sharing |
US8978373B2 (en) | 2011-10-21 | 2015-03-17 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8973358B2 (en) | 2011-10-21 | 2015-03-10 | Caterpillar Inc. | Closed-loop hydraulic system having force modulation |
US8893490B2 (en) | 2011-10-21 | 2014-11-25 | Caterpillar Inc. | Hydraulic system |
US9080310B2 (en) | 2011-10-21 | 2015-07-14 | Caterpillar Inc. | Closed-loop hydraulic system having regeneration configuration |
US9068578B2 (en) | 2011-10-21 | 2015-06-30 | Caterpillar Inc. | Hydraulic system having flow combining capabilities |
US8984873B2 (en) | 2011-10-21 | 2015-03-24 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8943819B2 (en) | 2011-10-21 | 2015-02-03 | Caterpillar Inc. | Hydraulic system |
US8910474B2 (en) | 2011-10-21 | 2014-12-16 | Caterpillar Inc. | Hydraulic system |
US9279236B2 (en) | 2012-06-04 | 2016-03-08 | Caterpillar Inc. | Electro-hydraulic system for recovering and reusing potential energy |
WO2014017958A1 (fr) * | 2012-07-26 | 2014-01-30 | Volvo Construction Equipment Ab | Tringlerie équilibrée |
US9200644B2 (en) * | 2012-08-28 | 2015-12-01 | Deere & Company | Implement with reduced hydraulic oil exchange |
US9290912B2 (en) | 2012-10-31 | 2016-03-22 | Caterpillar Inc. | Energy recovery system having integrated boom/swing circuits |
US9290911B2 (en) | 2013-02-19 | 2016-03-22 | Caterpillar Inc. | Energy recovery system for hydraulic machine |
DE102013006204A1 (de) * | 2013-04-04 | 2014-10-09 | Sennebogen Maschinenfabrik Gmbh | Betätigungseinrichtung und Arbeitsgerätschaft mit einer solchen Betätigungseinrichtung |
US9494168B2 (en) | 2014-08-26 | 2016-11-15 | Ut-Battelle, Llc | Energy efficient fluid powered linear actuator with variable area and concentric chambers |
US9441644B2 (en) | 2014-08-26 | 2016-09-13 | Ut-Battelle, Llc | Energy efficient fluid powered linear actuator with variable area |
DE102015009111A1 (de) * | 2015-07-19 | 2017-01-19 | Johannes Burde | Eine Vorrichtung um die hydraulischen Antriebe einer mobilen Arbeitsmaschine in ihrer Antriebsbewegung und -kraft zu unterstützen. |
EP3805469B1 (fr) * | 2015-08-14 | 2024-01-17 | Parker-Hannifin Corporation | Récupération d'énergie potentielle de flèche d'une excavatrice hydraulique |
CN105421510A (zh) * | 2015-12-14 | 2016-03-23 | 福建工程学院 | 一种采用变径平衡液压缸的动臂节能系统 |
CN107829988A (zh) * | 2017-11-02 | 2018-03-23 | 中科聚信洁能热锻装备研发股份有限公司 | 一种液压机回程的无泵蓄能器闭式油路及其控制方法 |
WO2021035477A1 (fr) * | 2019-08-26 | 2021-03-04 | Guangxi Liugong Machinery Co., Ltd. | Excavatrice électrique |
DE202022101057U1 (de) | 2022-02-24 | 2022-03-08 | Timur Serbay | Hydraulische Betätigungseinrichtung für ein hydraulisch betätigtes Arbeitsgerät |
US11668072B1 (en) * | 2022-10-26 | 2023-06-06 | Bourgault Industries Ltd. | Potential energy storage and control system for a hydraulically actuated element |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2238811A1 (fr) * | 1973-07-24 | 1975-02-21 | Poclain Sa | |
JPS60250128A (ja) * | 1984-05-25 | 1985-12-10 | Mitsubishi Heavy Ind Ltd | 液圧再生回路 |
JPH0336333A (ja) * | 1989-06-30 | 1991-02-18 | Komatsu Ltd | 油圧式掘削機の位置エネルギー回収再生装置 |
JPH04120324A (ja) * | 1990-09-10 | 1992-04-21 | Komatsu Ltd | 作業機の位置エネルギー回収・活用装置 |
WO1993011363A1 (fr) * | 1991-12-04 | 1993-06-10 | Hydac Technology Gmbh | Recuperateur d'energie |
JPH05163745A (ja) * | 1991-12-13 | 1993-06-29 | Komatsu Ltd | 昇降作業機の位置エネルギ回収装置 |
JPH09310379A (ja) * | 1996-05-21 | 1997-12-02 | Shin Caterpillar Mitsubishi Ltd | 作業機械における油圧シリンダの制振装置 |
WO1998033989A1 (fr) * | 1997-01-31 | 1998-08-06 | Lars Bruun | Dispositif pour engin hydraulique |
JP2004116676A (ja) * | 2002-09-26 | 2004-04-15 | Komatsu Ltd | 作業機械 |
JP2004116675A (ja) * | 2002-09-26 | 2004-04-15 | Komatsu Ltd | 作業機の位置エネルギ回収・再生装置 |
JP2004125094A (ja) * | 2002-10-03 | 2004-04-22 | Komatsu Ltd | 作業車両の油圧システム |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2365407B (en) * | 2000-05-25 | 2003-10-08 | Bamford Excavators Ltd | Hydraulic system for wheeled loader |
US6655136B2 (en) | 2001-12-21 | 2003-12-02 | Caterpillar Inc | System and method for accumulating hydraulic fluid |
US6748738B2 (en) | 2002-05-17 | 2004-06-15 | Caterpillar Inc. | Hydraulic regeneration system |
US6918247B1 (en) * | 2003-11-19 | 2005-07-19 | Jack E Warner | Assisted hydraulic system for moving a structural member |
-
2004
- 2004-07-07 DE DE102004032868A patent/DE102004032868A1/de not_active Withdrawn
-
2005
- 2005-07-05 EP EP05014569A patent/EP1614814A3/fr not_active Withdrawn
- 2005-07-06 US US11/175,753 patent/US7434391B2/en active Active
-
2008
- 2008-09-02 US US12/231,390 patent/US20090071139A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2238811A1 (fr) * | 1973-07-24 | 1975-02-21 | Poclain Sa | |
JPS60250128A (ja) * | 1984-05-25 | 1985-12-10 | Mitsubishi Heavy Ind Ltd | 液圧再生回路 |
JPH0336333A (ja) * | 1989-06-30 | 1991-02-18 | Komatsu Ltd | 油圧式掘削機の位置エネルギー回収再生装置 |
JPH04120324A (ja) * | 1990-09-10 | 1992-04-21 | Komatsu Ltd | 作業機の位置エネルギー回収・活用装置 |
WO1993011363A1 (fr) * | 1991-12-04 | 1993-06-10 | Hydac Technology Gmbh | Recuperateur d'energie |
JPH05163745A (ja) * | 1991-12-13 | 1993-06-29 | Komatsu Ltd | 昇降作業機の位置エネルギ回収装置 |
JPH09310379A (ja) * | 1996-05-21 | 1997-12-02 | Shin Caterpillar Mitsubishi Ltd | 作業機械における油圧シリンダの制振装置 |
WO1998033989A1 (fr) * | 1997-01-31 | 1998-08-06 | Lars Bruun | Dispositif pour engin hydraulique |
JP2004116676A (ja) * | 2002-09-26 | 2004-04-15 | Komatsu Ltd | 作業機械 |
JP2004116675A (ja) * | 2002-09-26 | 2004-04-15 | Komatsu Ltd | 作業機の位置エネルギ回収・再生装置 |
JP2004125094A (ja) * | 2002-10-03 | 2004-04-22 | Komatsu Ltd | 作業車両の油圧システム |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2148014A3 (fr) * | 2008-07-24 | 2016-06-22 | Liebherr-Hydraulikbagger GmbH | Appareil de travail |
WO2012013253A1 (fr) * | 2010-07-27 | 2012-02-02 | Hydac Technology Gmbh | Dispositif pour la récupération d'énergie |
EP2952773A1 (fr) * | 2010-07-27 | 2015-12-09 | Hydac Technology Gmbh | Dispositif de recuperation d'energie |
EP2690292A1 (fr) * | 2011-03-21 | 2014-01-29 | Shuanglai Yang | Système de relevage et procédé de relevage pour la flèche d'un engin de chantier, et engin de chantier pour ce procédé |
EP2690292A4 (fr) * | 2011-03-21 | 2015-04-15 | Shuanglai Yang | Système de relevage et procédé de relevage pour la flèche d'un engin de chantier, et engin de chantier pour ce procédé |
Also Published As
Publication number | Publication date |
---|---|
US20060053666A1 (en) | 2006-03-16 |
US7434391B2 (en) | 2008-10-14 |
US20090071139A1 (en) | 2009-03-19 |
EP1614814A3 (fr) | 2007-05-02 |
DE102004032868A1 (de) | 2006-02-09 |
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