EP2551232B1 - Système de commande de grue - Google Patents

Système de commande de grue Download PDF

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Publication number
EP2551232B1
EP2551232B1 EP20120005495 EP12005495A EP2551232B1 EP 2551232 B1 EP2551232 B1 EP 2551232B1 EP 20120005495 EP20120005495 EP 20120005495 EP 12005495 A EP12005495 A EP 12005495A EP 2551232 B1 EP2551232 B1 EP 2551232B1
Authority
EP
European Patent Office
Prior art keywords
crane
block
subcontrol
hydraulic
control system
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.)
Not-in-force
Application number
EP20120005495
Other languages
German (de)
English (en)
Other versions
EP2551232A1 (fr
Inventor
Erwin Morath
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.)
Liebherr Werk Ehingen GmbH
Original Assignee
Liebherr Werk Ehingen 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 Liebherr Werk Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP2551232A1 publication Critical patent/EP2551232A1/fr
Application granted granted Critical
Publication of EP2551232B1 publication Critical patent/EP2551232B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/20—Control systems or devices for non-electric drives
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/082—Servomotor systems incorporating electrically operated control means with different modes
    • 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
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control

Definitions

  • the present invention relates to a crane control system for the control and / or hydraulic supply of hydraulic consumers of a crane and a crane with at least one crane control system.
  • Crane control systems with so-called load-sensing are known in cranes with hydraulically actuated crane actuators. Various crane movements can be driven independently of each other.
  • the controller determines the pressure required by each crane actuator and determines the maximum pressure required. The controller then automatically adjusts the hydraulic pump to the pressure determined.
  • each crane actuator needs an individual hydraulic pressure and an individual hydraulic quantity.
  • the rocker cylinder requires a high hydraulic pressure, a winch often requires a large amount of hydraulic oil.
  • the font DE 11 2009 001 293 T5 discloses a crane control system according to the preamble of claim 1.
  • a crane control system for controlling and / or hydraulic supply hydraulic consumers of a crane with at least a first pump means and at least one second pump means, at least a first sub-control block and is provided at least a second sub-control block, by means of which in each case at least one hydraulic consumer of the crane can be supplied with hydraulic medium, wherein the first pumping means is connected to the first sub-control block and is operable with a first hydraulic pressure and wherein the second pumping means is connected to the second sub-control block and can be operated with a second hydraulic pressure.
  • first hydraulic consumers of a crane which must be supplied with a small or comparatively lower operating pressure with hydraulic medium can be supplied without corresponding reduction of the operating pressure of the hydraulic medium, for example by the first pump means and the first sub-control block.
  • second hydraulic consumers which have to be supplied with a high or comparatively higher operating pressure with hydraulic medium, can be supplied directly with a corresponding operating pressure of the hydraulic medium, for example through the second pumping means and the second sub-control block.
  • first sub-control block and the second sub-control block at least one valve means is arranged or provided, by means of which the first sub-control block and the second sub-control block are hydraulically connectable and / or separable.
  • At least one switch means is provided, by means of which the valve means can be actuated.
  • the switch means which may be a switch or a so-called "eco-switch”
  • the crane operator can deliberately switch to the energy-saving crane control with mutually separated by the valve means Um Kunststoffblöcken, ie not hydraulically shorted Um Kunststoffblöcken.
  • the division into the at least two Um Kunststoffblöcke can thus always then be activated by the crane operator, if the current work situation allows energy to be saved. In this case, the crane operator actively activates the "eco-switch" to activate the energy-saving function.
  • the eco-switch is not activated or switched accordingly or deactivated.
  • a second valve means is arranged or provided, by means of which the third sub-control block with the first sub-control block and / or the second sub-control block hydraulically connectable and / or separable is.
  • At least one further switch means is provided, by means of which the second valve means is actuated and / or by means of the switch means, by means of which the valve means is actuated, and the second valve means is actuated.
  • At least one crane control element in particular a crane control is provided, by means of which the at least one first hydraulic pressure and / or the at least one second hydraulic pressure is adjustable, wherein it is further preferably provided that the third hydraulic pressure can be adjusted by means of the crane control element.
  • the respective at least one hydraulic consumer of the crane is a crane actuator, wherein in particular the crane actuator is a slewing gear, a rocking cylinder, a winch, a telescopic drive and / or a caterpillar drive.
  • Hydraulic consumers ie crane actuators
  • the present invention relates to a crane with the features of claim 10. Thereafter, it is provided that a crane with at least one crane control system according to one of claims 1 to 9.
  • the crane may be, for example, a mobile crane.
  • Fig. 1 shows a schematic side view of a crane with a crane control system according to the invention.
  • a crane 1 has a superstructure 3 and an undercarriage 2 with a plurality of crane actuators, such as a slewing gear 4, luffing cylinder 5, winches 6 or a lifting mechanism 6 and a telescopic drive 7.
  • various encoders 8 and input and output units 9, here control transmitter with touch displays 9 and a so-called LICCON screen 9 with display and input means, and a crane control 10 are provided. Whether it is the crane 8 is a single or twin-engine crane is irrelevant.
  • the crane has an internal combustion engine 12, namely a diesel engine 12.
  • This internal combustion engine 12 drives directly or indirectly various pumps 13.
  • at least one pump 13 is provided.
  • the pumps 13 of the crane actuators for the load-sensing system are in an open hydraulic circuit.
  • the bus system 14 for data and energy transfer is by means of a line with hatching in the FIG. 2 shown. Further, a control block 15 is provided, which supplies the Kranaktuatoren with hydraulic medium. Volume flow Q and hydraulic pressure p for each crane actuator is individually set in the control block via the controlled proportional shifters 16. So there is a pressure compensator available.
  • FIG. 2 shows a schematic view of a crane control system according to the prior art. I'm in the FIG. 2 the system according to the invention can not be implemented, since only one pump 13 for the load-sensing system are present, as already explained above.
  • the pump 13 is a variable displacement pump 13 and may be a gear pump coupled to and driven by the diesel engine 12.
  • FIG. 3 now shows schematically the crane control system according to the invention, which can also be referred to as a load-sensing system, namely in particular as a “combined load-sensing pump control”.
  • FIG. 4 shows the solution with 3 pumps 13 'and 13 "and 13"' and with three independent load-sensing systems. It is self-explanatory that, after short-circuiting the various previously independent load-sensing systems, the systems are no longer independent but form a common load-sensing system.
  • the division into the at least two sub-control blocks 15 'and 15 can then always be run in order to save energy, and it could also be possible for the crane operator to actively actuate an" eco-switch "in order to activate or deactivate the energy-saving function according to the invention It can then be efficient if the crane operator already knows that he often needs the high volume flow Q in the upcoming lifting work, in which case he does not actuate the eco-switch.
  • the valve 50 is a valve that operates either fully open or fully closed. Thus arise in the valve 50 no losses. However, since the required hydraulic pressure p is set beforehand, the opening or closing of the valve 50 is not appreciable or otherwise detrimental to the performance of the crane 1.
  • the internal combustion engine 12 can not be designed to be switched off, since, for example, the air conditioning compressor has to continue to be operated.
  • the fuel savings result solely from the "combined load-sensing pump control".
  • the encoders 8 may be different sensors at various locations, e.g. Pressure sensors, angle encoders, etc.
  • FIG. 5 shows a solution in which the maximum pressure is measured by the encoders 8 in each of the at least 2 independent load-sensing systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)

Claims (9)

  1. Système de commande de grue pour la commande et/ou l'alimentation hydraulique de consommateurs hydrauliques d'une grue comprenant au moins un premier moyen de pompe (13') et au moins un second moyen de pompe (13"), au moins un premier sous-bloc de commande (15') et au moins un second sous-bloc de commande (15"), au moyen desquels respectivement au moins un consommateur hydraulique de la grue peut être alimenté en fluide hydraulique, dans lequel le premier moyen de pompe (13') est relié au premier sous-bloc de commande (15') et peut être exploité avec une première pression hydraulique et dans lequel le second moyen de pompe (13") est relié au second sous-bloc de commande (15") et peut être exploité avec une seconde pression hydraulique, caractérisé en ce qu'entre le premier sous-bloc de commande (15') et le second sous-bloc de commande (15") au moins un moyen de vanne (50) est disposé ou prévu, au moyen duquel une liaison hydraulique entre le premier sous-bloc de commande (15') et le second sous-bloc de commande (15") peut être établie et/ou interrompue.
  2. Système de commande de grue selon la revendication 1, caractérisé en ce qu'au moins un moyen de commutateur est prévu, au moyen duquel le moyen de vanne (50) peut être actionné.
  3. Système de commande de grue selon l'une des revendications précédentes, caractérisé en ce qu'en outre au moins un troisième moyen de pompe (13"') et au moins un troisième sous-bloc de commande (15"') est prévu, au moyen duquel au moins un consommateur hydraulique de la grue peut être alimenté en fluide hydraulique, dans lequel le troisième moyen de pompe (13"') est relié au troisième sous-bloc de commande (15"') et peut être exploité avec une troisième pression hydraulique.
  4. Système de commande de grue selon la revendication 3, caractérisé en ce qu'entre le troisième sous-bloc de commande (15"') et le premier sous-bloc de commande (15') et/ou le second sous-bloc de commande (15") au moins un second moyen de vanne (50') est disposé ou prévu, au moyen duquel une liaison hydraulique entre le troisième sous-bloc de commande (15') et le premier sous-bloc de commande (15') et/ou le second sous-bloc de commande (15") peut être établie et/ou interrompue.
  5. Système de commande de grue selon la revendication 4, caractérisé en ce qu'au moins un autre moyen de commutateur est prévu, au moyen duquel le second moyen de vanne (50') peut être actionné et/ou en ce que le second moyen de vanne (50') également peut être actionné au moyen du moyen de commutateur, au moyen duquel le moyen de vanne (50) peut être actionné.
  6. Système de commande de grue selon l'une des revendications précédentes, caractérisé en ce qu'au moins un élément de commande de grue (10), en particulier une commande de grue (10), est prévu(e), au moyen duquel/de laquelle l'au moins une première pression hydraulique et/ou l'au moins une seconde pression hydraulique est/sont réglable(s), dans lequel il est en outre de préférence prévu que la troisième pression hydraulique soit réglable au moyen de l'élément de commande de grue (10).
  7. Système de commande de grue selon la revendication 6, caractérisé en ce que la première ou la seconde pression hydraulique peuvent être harmonisées au moyen de l'élément de commande de grue (10), dans lequel de préférence la pression hydraulique respectivement la plus faible est harmonisée avec la pression hydraulique plus élevée, et par conséquent augmentée.
  8. Système de commande de grue selon l'une des revendications précédentes, caractérisé en ce que le respectivement au moins un consommateur hydraulique de la grue est un actionneur de grue, dans lequel en particulier l'actionneur de grue est un dispositif de rotation (4), un vérin de relevage de flèche (5), un treuil (6), un entraînement de dispositif télescopique (7) et/ou un entraînement à chenille.
  9. Grue comprenant au moins un système de commande de grue selon l'une des revendications précédentes.
EP20120005495 2011-07-28 2012-07-27 Système de commande de grue Not-in-force EP2551232B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110108851 DE102011108851A1 (de) 2011-07-28 2011-07-28 Kransteuerungssystem

Publications (2)

Publication Number Publication Date
EP2551232A1 EP2551232A1 (fr) 2013-01-30
EP2551232B1 true EP2551232B1 (fr) 2013-11-20

Family

ID=46603523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120005495 Not-in-force EP2551232B1 (fr) 2011-07-28 2012-07-27 Système de commande de grue

Country Status (4)

Country Link
US (1) US9096414B2 (fr)
EP (1) EP2551232B1 (fr)
CN (1) CN102897668B (fr)
DE (1) DE102011108851A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015189761A1 (fr) * 2014-06-09 2015-12-17 Sabic Global Technologies B.V. Compositions thermoconductrices ayant une bonne performance de résistance au choc
DE102014009996A1 (de) * 2014-07-05 2016-01-07 Hydac Fluidtechnik Gmbh Ventil-Baukastensystem

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3764824D1 (de) * 1986-01-25 1990-10-18 Hitachi Construction Machinery Hydraulisches antriebssystem.
DE3901207C2 (de) * 1989-01-17 1994-06-23 Rexroth Mannesmann Gmbh Ventilanordnung für mehrere hydraulische Antriebe, insbesondere für die Antriebe eines Krans
JPH0662268B2 (ja) * 1989-04-21 1994-08-17 株式会社神戸製鋼所 移動式クレーンの変位抑制装置
US5189605A (en) * 1989-10-10 1993-02-23 The Manitowoc Company, Inc. Control and hydraulic system for a liftcrane
DE4100988C2 (de) * 1991-01-15 2001-05-10 Linde Ag Hydraulisches Antriebssystem
JP3013225B2 (ja) * 1995-01-11 2000-02-28 新キャタピラー三菱株式会社 吊り作業制御装置
JP4290861B2 (ja) 2000-07-28 2009-07-08 コベルコクレーン株式会社 クレーンの油圧回路
JP4137431B2 (ja) * 2001-11-09 2008-08-20 ナブテスコ株式会社 油圧回路
GB2422876B (en) * 2003-11-14 2007-12-12 Komatsu Mfg Co Ltd Hydraulic pressure control device of construction machine
JP4541209B2 (ja) * 2005-03-31 2010-09-08 ナブテスコ株式会社 油圧回路
JP2006329248A (ja) * 2005-05-24 2006-12-07 Kobelco Contstruction Machinery Ltd 作業機械の油圧供給装置
DE202005020462U1 (de) * 2005-12-08 2007-04-19 Liebherr-Werk Ehingen Gmbh Kran
JP4795875B2 (ja) * 2006-07-06 2011-10-19 ナブテスコ株式会社 建設機械の昇圧回路、建設機械の昇圧回路の供給部体
JP5172477B2 (ja) * 2008-05-30 2013-03-27 カヤバ工業株式会社 ハイブリッド建設機械の制御装置
KR100974283B1 (ko) 2008-08-08 2010-08-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 굴삭 및 파이프 레잉 작업을 위한 유량 분배 시스템
JP2011052372A (ja) 2009-08-31 2011-03-17 Caterpillar Sarl ショベルクレーン
CN201670659U (zh) 2010-05-13 2010-12-15 卢宇 液控操作三联泵液压系统

Also Published As

Publication number Publication date
EP2551232A1 (fr) 2013-01-30
CN102897668B (zh) 2016-06-01
CN102897668A (zh) 2013-01-30
DE102011108851A1 (de) 2013-01-31
US9096414B2 (en) 2015-08-04
US20130026123A1 (en) 2013-01-31

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