EP1650442B1 - Dispositif de commande - Google Patents

Dispositif de commande Download PDF

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Publication number
EP1650442B1
EP1650442B1 EP05022317A EP05022317A EP1650442B1 EP 1650442 B1 EP1650442 B1 EP 1650442B1 EP 05022317 A EP05022317 A EP 05022317A EP 05022317 A EP05022317 A EP 05022317A EP 1650442 B1 EP1650442 B1 EP 1650442B1
Authority
EP
European Patent Office
Prior art keywords
valve
control device
tools
operating
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.)
Not-in-force
Application number
EP05022317A
Other languages
German (de)
English (en)
Other versions
EP1650442A1 (fr
Inventor
Wolfgang Bertleff
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.)
Lukas Hydraulik GmbH
Original Assignee
Lukas Hydraulik 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 Lukas Hydraulik GmbH filed Critical Lukas Hydraulik GmbH
Publication of EP1650442A1 publication Critical patent/EP1650442A1/fr
Application granted granted Critical
Publication of EP1650442B1 publication Critical patent/EP1650442B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/001—Double valve requiring the use of both hands simultaneously
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members

Definitions

  • the invention relates to a control device according to the preamble of patent claim 1.
  • Such control devices are used in particular in rescue technology. They serve by means of a pump, for. As a portable motorized pump to operate several tools needed for the rescue operation. For rescue missions namely often have to use the tools such. As lifting cylinder, scissors, spreader or rescue cylinder especially loads (often several at the same time) are lifted. These are always tools with cylinders without a control attached to the tool. For this reason, it comes z. B. in daily use quite often, that in addition to a lifting cylinder, another lifting cylinder is operated by one and the same pump.
  • the object of the present invention is to provide a novel control device with which the aforementioned problem is avoided. At the same time the controller should have a simple, inexpensive to implement construction.
  • the present object is achieved with the control device according to claim 1.
  • the control device including the so-called deadman function, can be operated by the operator with two hands, i. H. especially easy to use. However, however, the controller ensures increased reliability.
  • the change-over valve and / or control valve can be driven manually or by means of a drive and an operating element (for example push-button) to be operated by the operator.
  • a position is provided in which the resource located in the respective resource line can not, at least but not in significant quantities, flow to the changeover valve. For example, this is made possible by the fact that in the basic position of the control valve, each operating medium line is connected against a check valve. The operating medium can thus not flow away, as a result of which a "load-holding state" is established.
  • control valve is designed such that intermediate positions on the manual actuation of the control valve in the manner of a joystick by the operator can be fixed, such that this can vary the division ratios of the supply of resources to the individual tools accordingly.
  • control valve in that a so-called proportional valve is used as the control valve.
  • the output side of the control valve is expediently connected directly via operating medium lines with the tools, so that the control of the individual tools takes place directly from the control valve.
  • control valve also has means for an automatic return of the control valve to a basic position when the control valve is released by the operator. This is particularly useful when the current operating state of the respective tool should be "frozen” to a risk of failure of the operator due to subsequent tool movements such. As a lowering of the lifting cylinder to prevent widening of a spreader or the like.
  • control element is provided on the control valve as a control lever.
  • the respective return line from the respective tool runs bypassing the control valve in a common collection channel directly to the changeover valve and from there depending on the switching position back into the reservoir of the pump.
  • the basic position of the changeover valve is expediently a position in which a non-pressurized circulation takes place via the pump. In this basic position, no pressure build-up in the area of the tools is possible, although the pump continues to run.
  • control valve and / or changeover valve in the respective basic position is advantageously carried out by means of an elastic bias, for example by using a spring arrangement.
  • an operating element in particular in the form of a preselection lever, is also provided in the case of the changeover valve.
  • control device is provided as a self-contained, manageable unit, which is in each case connected in use with the pump and the tools via appropriate operating lines and return lines.
  • a pressure relief valve which connects the pump to the reservoir. This pressure relief valve serves to deliver the resulting in the basic position of the changeover valve pressure to the reservoir of the pump.
  • control device is in particular for a max.
  • Operating pressure from 300 bar, preferably up to 500 bar, preferably from 330 bar to 430 bar, provided.
  • oil is provided as operating fluid.
  • the tools are in particular those of rescue and rescue technology such.
  • Reference numeral 1 denotes the portable according to the invention, d. H. independently manageable control device whose components are arranged within the dot-dashed area.
  • the control device 1 is connected to a pump 4 as well as to a plurality of tools (in the case of the drawing figure, for example, two hydraulically operated tools). These are z. Example, to a first lifting cylinder 2 and a second lifting cylinder 3, which are to be operated by the single pump 4 simultaneously. In this specific case of an embodiment of the invention, the two lifting cylinders 2, 3 work in the same direction, d. H. in the same direction.
  • the pump 4 is a motor-driven pump or a hand pump.
  • the operating pressure is z. B. at about 350 bar.
  • the control device 1 serves to allow the operator to coordinate the operation of the two tools as needed using a single pump 4.
  • control device 1 comprises a switching valve 5 with which three switching positions can be realized in the example of the drawing figure, namely crossover (retraction of the tools to the initial position), basic position (no operation of the tools) and parallel position (operation of the tools) Tools).
  • crossover retract of the tools to the initial position
  • basic position no operation of the tools
  • parallel position operation of the tools
  • the pressure relief valve 17 provides relief in possibly building up overpressure.
  • the switching valve 5 is designed so that it automatically passes in a release of the selector lever 6 by the operator due to a spring assembly 14 in the center figure shown in the single figure, in which only a non-pressurized circulation of the resource. If the operator thus releases the preselector lever 6 of the changeover valve 5, no return of the operating medium from the changeover valve to the tools occurs due to the return of the changeover valve 5 to the basic position.
  • a resilient bias may be provided, for example in the form of the aforementioned spring assembly 14.
  • the control unit 1 further comprises an additional control module, in particular a control valve 7, which is provided between the switching valve 5 and the tools.
  • the pressure medium line between the changeover valve 5 and the individual tools thus runs via the control valve. 7
  • the control valve 7 is manually operated in its position, expediently also by an operating element 8 z. B. a control lever.
  • the control valve 7 also has an automatic reset function upon release of the operating lever by the operator in a basic position (in drawing figure central position), in which the two Operating medium lines 10, 11 of the tools are each switched to a check valve 20, This can - since resources do not flow to the changeover valve 5 - set a lasthaltender state of the tools. There is thus no change in the respective instantaneous position of the first lifting cylinder 2 or second lifting cylinder 3.
  • a resilient bias for example in the form of a spring assembly 15.
  • the control valve 7 is designed as a so-called proportional valve, with the result that the operator over the control element 8 with one hand share the information about the control valve to be split volume flows from the pump 4 to the individual tools and thus individually control the individual tools.
  • the operator can operate the control valve 7 in the manner of a joystick control with one hand, wherein it determines the function of the switching valve 5 with the other hand.
  • a conventional changeover valve can be used, which can be used without design changes.
  • the control valve 7 and / or switching valve 5 can be driven manually or by motor.
  • a pump can also be a pump with several independent resource circuits such. B. a so-called. Zweistrompumpe be used. In the latter case, two lifting cylinders and a rescue scissors could be operated in parallel with the control unit according to the invention.
  • the present invention ensures the simultaneous operation of multiple tools using a pump with a high operator comfort, a safe "deadman function" and a simple, low-cost realizable design.
  • the invention therefore represents a very special contribution in the relevant field of the prior art.

Claims (14)

  1. Dispositif de commande (1), comprenant :
    une soupape de commutation (5),
    une pompe (4) pompant un fluide de fonctionnement, en particulier une pompe motorisée ou une pompe manuelle,
    des dispositifs de raccordement, pour relier le dispositif de commande à au moins deux outils, en particulier un premier vérin de levage (2) et un deuxième vérin de levage (3) ou analogue, la soupape de commutation (5) étant manoeuvrable à la main, où la soupape de commutation (5), lorsque l'opérateur la relâche, est susceptible d'être placée automatiquement en une position de base, pour laquelle il est impossible qu'une pression s'établisse dans la zone des outils,
    caractérisé en ce que :
    a) une soupape de commande (7) est prévue entre la soupape de commutation (5) et les outils, le côté sortie de la soupape de commande (7) étant relié aux outils par l'intermédiaire de conduites à fluide de fonctionnement (10, 11), la soupape de commande (7) présentant une position de base, pour laquelle le fluide de fonctionnement se trouvant dans la conduite à fluide de fonctionnement (10, ou 11) respective peut ou non s'échapper en des quantités notables vers la soupape de commutation (5),
    b) la soupape de commande (7) est une soupape proportionnelle et peut être manoeuvrée également à la main par un opérateur,
    c) un état de maintien de la charge prédomine lorsque la soupape de commutation (5) ainsi que la soupape de commande (7) sont à la position de base,
    d) deux outils ou plus peuvent être commandés avec la soupape de commande (7).
  2. Dispositif de commande selon la revendication 1,
    caractérisé en ce que
    le côté sortie de la soupape de commande (7) est directement relié aux outils, par l'intermédiaire de conduites à fluide de fonctionnement (10, 11).
  3. Dispositif de commande selon la revendication 1,
    caractérisé en ce que
    la soupape de commande (7) présente des moyens pour le rappel automatique de la soupape de commande (7) à la position de base, lorsque la soupape de commande (7) est relâchée par l'opérateur.
  4. Dispositif de commande selon l'une des revendications 2 à 3,
    caractérisé en ce que,
    lorsque la soupape de commande (7) se trouve à la position de base, chaque conduite à fluide de fonctionnement (10, 11) est commuté vers un clapet anti-retour (20).
  5. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que
    la soupape de commande (7) présente un élément de manoeuvre (8), en particulier un levier de manoeuvre.
  6. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que
    la conduite de retour (12, 13) respective des outils s'étend directement vers la soupape de commutation (5).
  7. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que
    la position de base de la soupape de commutation (5) est une position pour laquelle une circulation sans pression se fait par l'intermédiaire de la pompe (4).
  8. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce qu'
    un agencement à ressort (15) est prévu en tant que moyen d'obtention d'un rappel de la soupape de commande (7) à la position de base.
  9. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce qu'
    un élément de manoeuvre (6), en particulier un levier de présélection, est prévu pour l'actionnement de la soupape de commutation (5).
  10. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de commande (1) est prévu en tant qu'unité autonome, reliée à la pompe (4) et aux outils, chaque fois par l'intermédiaire des conduites à fluide de fonctionnement (10, 11) et des conduites de retour (12, 13).
  11. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce qu'
    une soupape de décharge par surpression (17), reliée au réservoir (18) de la pompe (4), est branchée dans l'alimentation (19), entre pompe (4) et soupape de commutation (5).
  12. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif est prévu en particulier pour des pressions maximales de fonctionnement allant de 300 bar à de préférence 500 bar, de préférence allant de 330 bar à 430 bar.
  13. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que
    de l'huile hydraulique est prévue comme fluide de fonctionnement.
  14. Dispositif de commande selon l'une des revendications précédentes,
    caractérisé en ce que,
    concernant l'outil, il s'agit d'outils de la technique de sauvetage, en particulier sauvetage par fuite, repêchage, mise en sécurité.
EP05022317A 2004-10-20 2005-10-13 Dispositif de commande Not-in-force EP1650442B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004051213A DE102004051213B3 (de) 2004-10-20 2004-10-20 Steuereinrichtung

Publications (2)

Publication Number Publication Date
EP1650442A1 EP1650442A1 (fr) 2006-04-26
EP1650442B1 true EP1650442B1 (fr) 2008-08-06

Family

ID=35614180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05022317A Not-in-force EP1650442B1 (fr) 2004-10-20 2005-10-13 Dispositif de commande

Country Status (9)

Country Link
US (1) US7409828B2 (fr)
EP (1) EP1650442B1 (fr)
JP (1) JP2006118707A (fr)
CN (1) CN100478573C (fr)
AT (1) ATE403806T1 (fr)
AU (1) AU2005225054B2 (fr)
DE (2) DE102004051213B3 (fr)
ES (1) ES2309636T3 (fr)
PT (1) PT1650442E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024886B3 (de) * 2009-06-09 2010-12-02 Lukas Hydraulik Gmbh Steuereinrichtung
EP2268069A2 (fr) 2009-06-23 2010-12-29 Swissphone Telecom AG Terminal pour un réseau de télécommunication, procédé de fonctionnement d'un tel terminal et procédé d'établissement d'un terminal auxiliaire

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JP5185107B2 (ja) * 2005-04-28 2013-04-17 ベスローテン・フェンノートシャップ・ホルマトロ・インダストリアル・イクウィップメント 液圧バルブシステムを備えたツール
SE534002C2 (sv) * 2009-06-24 2011-03-29 Nordhydraulic Ab Förfarande och anordning för styrning av ett hydraliskt system
WO2011100655A2 (fr) * 2010-02-15 2011-08-18 Altair Engineering, Inc. Outil de sauvetage portable et procédé d'utilisation
CN101886640A (zh) * 2010-07-02 2010-11-17 哈尔滨工程大学 手动可调式低压三通道液压驱动系统
CN103727294B (zh) * 2014-01-20 2017-01-25 河南华润电力首阳山有限公司 一种控制装置及气压系统
CN104500470B (zh) * 2014-12-04 2017-09-29 徐州徐工挖掘机械有限公司 一种具有一阀两用的液压系统
CN104481943A (zh) * 2014-12-12 2015-04-01 吕珩 一种液压单级减压系统
US9862137B2 (en) 2015-04-20 2018-01-09 Milwaukee Electric Tool Corporation PEX expanding tool
US10000007B2 (en) 2015-06-10 2018-06-19 Milwaukee Electric Tool Corporation PEX expanding tool
CN105289928B (zh) * 2015-10-21 2018-06-12 承德市开发区富泉石油机械有限公司 一种注脂液控装置
CN106402059A (zh) * 2016-12-26 2017-02-15 徐工集团工程机械有限公司 负载口独立阀、液压总线控制系统及工程机械

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024886B3 (de) * 2009-06-09 2010-12-02 Lukas Hydraulik Gmbh Steuereinrichtung
EP2261512A2 (fr) 2009-06-09 2010-12-15 Lukas Hydraulik GmbH Dispositif de commande hydraulique
EP2268069A2 (fr) 2009-06-23 2010-12-29 Swissphone Telecom AG Terminal pour un réseau de télécommunication, procédé de fonctionnement d'un tel terminal et procédé d'établissement d'un terminal auxiliaire

Also Published As

Publication number Publication date
ATE403806T1 (de) 2008-08-15
DE502005004933D1 (de) 2008-09-18
PT1650442E (pt) 2008-10-10
AU2005225054A1 (en) 2006-05-04
CN100478573C (zh) 2009-04-15
DE102004051213B3 (de) 2006-06-01
EP1650442A1 (fr) 2006-04-26
CN1779277A (zh) 2006-05-31
AU2005225054B2 (en) 2008-11-20
JP2006118707A (ja) 2006-05-11
US7409828B2 (en) 2008-08-12
US20060081120A1 (en) 2006-04-20
ES2309636T3 (es) 2008-12-16

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