EP2503161B1 - Dispositif de vanne de commande hydraulique - Google Patents

Dispositif de vanne de commande hydraulique Download PDF

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Publication number
EP2503161B1
EP2503161B1 EP12157756.3A EP12157756A EP2503161B1 EP 2503161 B1 EP2503161 B1 EP 2503161B1 EP 12157756 A EP12157756 A EP 12157756A EP 2503161 B1 EP2503161 B1 EP 2503161B1
Authority
EP
European Patent Office
Prior art keywords
line
control
valve
pressure
lowering brake
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.)
Active
Application number
EP12157756.3A
Other languages
German (de)
English (en)
Other versions
EP2503161A2 (fr
EP2503161A3 (fr
Inventor
Dr. Wolfgang Kraft
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.)
Linde Hydraulics GmbH and Co KG
Original Assignee
Linde Hydraulics GmbH and Co KG
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Publication date
Application filed by Linde Hydraulics GmbH and Co KG filed Critical Linde Hydraulics GmbH and Co KG
Publication of EP2503161A2 publication Critical patent/EP2503161A2/fr
Publication of EP2503161A3 publication Critical patent/EP2503161A3/fr
Application granted granted Critical
Publication of EP2503161B1 publication Critical patent/EP2503161B1/fr
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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
    • F15B11/003—Systems with load-holding 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding 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
    • F15B2211/50—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
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F15B2211/50527—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves using cross-pressure relief 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
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members

Claims (3)

  1. Dispositif de vanne de commande hydraulique (1) pour la commande d'un cylindre hydraulique à double effet (7) avec une vanne de commande (2) par étranglement dans des positions intermédiaires, qui est en communication avec une conduite de refoulement (3) d'une pompe (4), avec une conduite de réservoir (6) menée à un réservoir (5) et avec des conduites de consommateurs (8a, 8b) menées au cylindre hydraulique (7), dans lequel la vanne de commande (2) est actionnée chaque fois par une pression de commande hydraulique (pA; pB) en direction d'une position de commande (2b; 2d), dans laquelle une conduite de consommateur (8a; 8b) forme un côté d'arrivée raccordé à la conduite de refoulement (3) et l'autre conduite de consommateur (8b; 8a) forme un côté d'écoulement raccordé au réservoir (5) et dans lequel une vanne de freinage de descente (15a, 15b) à siège étanche est disposée respectivement dans les conduites de consommateur (8a, 8b) pour l'arrêt sans fuite d'huile du cylindre hydraulique (7), laquelle présente une position d'arrêt sans fuite (17a, 17b) et une position de passage (18a, 18b), dans lequel la vanne de freinage de descente à siège étanche (15b; 15a) disposée dans le côté d'écoulement peut être actionnée par la pression de commande (pA; pB) de la vanne de commande (2) en direction de la position de passage (18b; 18a), caractérisé en ce que dans le cas d'une charge négative agissant sur le cylindre hydraulique (7) la pression de commande (pA; pB) poussant la vanne de freinage de descente (15b; 15a) dans la position de passage peut être influencée en fonction de la pression d'arrivée régnant dans le côté d'arrivée du cylindre hydraulique (7), dans lequel une conduite de commande primaire (20a; 20b) de la vanne de freinage de descente (15a; 15b) menant la pression de commande (pA; pB) est raccordée à la conduite de consommateur côté arrivée (8a; 8b) au moyen d'une conduite d'évacuation (22a; 22b), dans laquelle est disposée une vanne d'arrêt (24a; 24b), dans lequel dans le cas d'une baisse de la pression d'arrivée dans la conduite de consommateur côté arrivée (8a; 8b) en dessous de la pression de commande (pA; pB) la vanne d'arrêt (24a; 24b) dans la conduite d'évacuation (22a; 22b) s'ouvre et il se produit une baisse de pression de la pression de commande (pA; pB) régnant dans la conduite de commande primaire (20a; 20b) et activant la vanne de freinage de descente (15a; 15b) côté écoulement dans la position de passage (18a; 18b).
  2. Dispositif de vanne de commande hydraulique selon la revendication 1, caractérisé en ce que la conduite de commande primaire (20a; 20b) prévue pour l'actionnement de la vanne de freinage de descente (15b; 15a) est menée d'une face de commande de la vanne de freinage de descente (15b; 15a) agissant en direction de la position de passage (18b; 18a) jusqu'à une conduite de pression de commande (10a; 10b) portant la pression de commande (pA; pB) de la vanne de commande (2), dans lequel un dispositif d'étranglement (21a; 21b) est disposé dans la conduite de commande primaire (20a; 20b) et la conduite de commande primaire (20a; 20b) est raccordée entre le dispositif d'étranglement (21a; 21b) et la vanne de freinage de descente (15b; 15a) à la conduite d'évacuation (22a; 22b) menée vers le côté d'arrivée, dans laquelle sont disposés un autre dispositif d'étranglement (23a; 23b) et en aval de l'autre dispositif d'étranglement (23a; 23b) la vanne d'arrêt (24a; 24b) s'ouvrant en direction du côté d'arrivée.
  3. Dispositif de vanne de commande hydraulique selon la revendication 2, caractérisé en ce que le dispositif d'étranglement (21a; 21b; 23a; 23b) sont réalisés en forme d'obturateurs ou de buses.
EP12157756.3A 2011-03-22 2012-03-01 Dispositif de vanne de commande hydraulique Active EP2503161B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110014685 DE102011014685A1 (de) 2011-03-22 2011-03-22 Hydraulische Steuerventileinrichtung

Publications (3)

Publication Number Publication Date
EP2503161A2 EP2503161A2 (fr) 2012-09-26
EP2503161A3 EP2503161A3 (fr) 2016-02-10
EP2503161B1 true EP2503161B1 (fr) 2017-10-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157756.3A Active EP2503161B1 (fr) 2011-03-22 2012-03-01 Dispositif de vanne de commande hydraulique

Country Status (4)

Country Link
EP (1) EP2503161B1 (fr)
JP (1) JP5959252B2 (fr)
CN (1) CN102691683B (fr)
DE (1) DE102011014685A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105593438B (zh) 2013-05-31 2019-07-05 伊顿智能动力有限公司 用于通过平衡保护来降低动臂跳动的液压系统及方法
EP3039301B1 (fr) 2013-08-30 2018-10-03 Eaton Corporation Procédé et système de commande pour l'utilisation d'une paire de soupapes de dosage à commande hydraulique indépendantes pour réduire des oscillations de flèche
CN105940241B (zh) 2013-11-14 2018-11-20 伊顿公司 降低动臂振荡的控制策略
US10344783B2 (en) 2013-11-14 2019-07-09 Eaton Intelligent Power Limited Pilot control mechanism for boom bounce reduction
US10323663B2 (en) 2014-07-15 2019-06-18 Eaton Intelligent Power Limited Methods and apparatus to enable boom bounce reduction and prevent un-commanded motion in hydraulic systems
EP3615814A4 (fr) 2017-04-28 2021-01-27 Eaton Intelligent Power Limited Système d'amortissement de vibrations induites par la masse dans des machines ayant des bras ou des éléments allongés à commande hydraulique
CN111542703B (zh) 2017-04-28 2022-12-06 丹佛斯动力系统Ii技术有限公司 具有用于抑制机器中的质量感应振动的运动传感器的系统

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Publication number Priority date Publication date Assignee Title
JPS6424163U (fr) * 1987-08-03 1989-02-09
FR2627838B1 (fr) * 1988-02-25 1991-01-11 Bennes Marrel Valve de securite pour recepteur hydraulique et circuit hydraulique la comportant
JP2001002371A (ja) * 1999-06-25 2001-01-09 Kobe Steel Ltd 建設機械のアクチュエータ駆動装置
JP2002022054A (ja) * 2000-07-05 2002-01-23 Hitachi Constr Mach Co Ltd 方向制御弁
DE10224731B4 (de) 2001-06-29 2012-09-20 Linde Material Handling Gmbh Hydrostatisches Antriebssystem
US6912849B2 (en) * 2002-04-09 2005-07-05 Komatsu Ltd. Cylinder driving system and energy regenerating method thereof
DE10253340B4 (de) * 2002-04-26 2007-02-15 Volkmann Gmbh Betätigungsventil für einen zweiseitig wirksamen Pneumatikzylinder sowie Verwendung eines solchen Betätigungsventils für mittels Pneumatikzylindern ansteuerbare Spulengatter
JP3776067B2 (ja) * 2002-08-12 2006-05-17 株式会社クボタ 水田作業機の昇降装置
JP4890147B2 (ja) * 2006-08-04 2012-03-07 日立建機株式会社 油圧アクチュエータ回路の負荷保持装置
WO2009102740A2 (fr) * 2008-02-12 2009-08-20 Parker-Hannifin Corporation Système de gestion d'écoulement pour machine de travail hydraulique

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
CN102691683A (zh) 2012-09-26
JP2012197937A (ja) 2012-10-18
EP2503161A2 (fr) 2012-09-26
EP2503161A3 (fr) 2016-02-10
JP5959252B2 (ja) 2016-08-02
CN102691683B (zh) 2016-02-03
DE102011014685A1 (de) 2012-09-27

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