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EP2503161A3 - Hydraulic control valve device - Google Patents

Hydraulic control valve device Download PDF

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Publication number
EP2503161A3
EP2503161A3 EP12157756.3A EP12157756A EP2503161A3 EP 2503161 A3 EP2503161 A3 EP 2503161A3 EP 12157756 A EP12157756 A EP 12157756A EP 2503161 A3 EP2503161 A3 EP 2503161A3
Authority
EP
European Patent Office
Prior art keywords
control valve
control
line
container
consumer
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
EP12157756.3A
Other languages
German (de)
French (fr)
Other versions
EP2503161B1 (en
EP2503161A2 (en
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
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 Linde Hydraulics GmbH and Co KG filed Critical Linde Hydraulics GmbH and Co KG
Publication of EP2503161A2 publication Critical patent/EP2503161A2/en
Publication of EP2503161A3 publication Critical patent/EP2503161A3/en
Application granted granted Critical
Publication of EP2503161B1 publication Critical patent/EP2503161B1/en
Active 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
    • F15B11/003—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Die Erfindung betrifft eine Hydraulische Steuerventileinrichtung (1) zur Steuerung eines doppeltwirkenden Hydraulikzylinders (7) mit einem in Zwischenstellungen drosselnden Steuerventil (2), das mit einer Förderleitung (3) einer Pumpe (4), einer zu einem Behälter (5) geführten Behälterleitung (6) und zu dem Hydraulikzylinder (7) geführten Verbraucherleitungen (8a, 8b) in Verbindung steht, wobei das Steuerventil (2) von jeweils einem hydraulischen Ansteuerdruck (pA ; pB) in Richtung einer Steuerstellung (2b; 2d) betätigt ist, in der eine Verbraucherleitung (8a; 8b) eine mit der Förderleitung (3) verbundene Zulaufseite und die weitere Verbraucherleitung (8b; 8a) eine mit dem Behälter (5) verbundene Ablaufseite bildet und wobei in den Verbraucherleitungen (8a, 8b) jeweils ein sitzdichtes Senkbremsventil (15a, 15b) zur leckölfreien Absperrung des Hydraulikzylinders (7) angeordnet ist, das eine leckagedichte Sperrstellung (17a, 17b) und eine Durchflussstellung (18a, 18b) aufweist. Die Aufgabe, eine derartige Steuerventileinrichtung zur Verfügung zu stellen, bei der ein stabiles Regelverhalten erzielt wird und Leistungsverluste bei der Ansteuerung der Senkbremsventile vermieden werden, wird erfindungsgemäß dadurch gelöst, dass das in der Ablaufseite angeordnete sitzdichte Senkbremsventil (15b; 15a) von dem Ansteuerdruck (pA ; pB) des Steuerventils (2) in Richtung der Durchflussstellung (18b; 18a) betätigbar ist.

Figure imgaf001
The invention relates to a hydraulic control valve device (1) for controlling a double-acting hydraulic cylinder (7) with a control valve (2) throttling in intermediate positions, which is connected to a delivery line (3) of a pump (4), a container line (5) guided to a container (5). 6) and to the hydraulic cylinder (7) guided consumer lines (8a, 8b) is in communication, wherein the control valve (2) by a respective hydraulic actuation pressure (p A , p B ) in the direction of a control position (2b, 2d) is actuated in which a consumer line (8a; 8b) forms an inlet side connected to the delivery line (3) and the further consumer line (8b; 8a) forms a discharge side connected to the container (5) and wherein in the consumer lines (8a, 8b) in each case a seat-tight Senkbremsventil (15a, 15b) is arranged for leak oil-free shut-off of the hydraulic cylinder (7) having a leak-tight blocking position (17a, 17b) and a flow position (18a, 18b) t. The object to provide such a control valve device, in which a stable control behavior is achieved and power losses are avoided in the control of Senkbremsventile is inventively achieved in that the arranged in the discharge side seat-tight lowering brake valve (15b, 15a) of the control pressure ( p A ; p B ) of the control valve (2) in the direction of the flow position (18b, 18a) can be actuated.
Figure imgaf001
EP12157756.3A 2011-03-22 2012-03-01 Hydraulic control valve device Active EP2503161B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110014685 DE102011014685A1 (en) 2011-03-22 2011-03-22 Hydraulic control valve device

Publications (3)

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

Family

ID=45841217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157756.3A Active EP2503161B1 (en) 2011-03-22 2012-03-01 Hydraulic control valve device

Country Status (4)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102152148B1 (en) 2013-05-31 2020-09-04 이턴 코포레이션 Hydraulic system and method for reducing boom bounce with counter-balance protection
EP3039301B1 (en) 2013-08-30 2018-10-03 Eaton Corporation Control method and system for using a pair of independent hydraulic metering valves to reduce boom oscillations
WO2015073330A1 (en) 2013-11-14 2015-05-21 Eaton Corporation Control strategy for reducing boom oscillation
CN105849421B (en) 2013-11-14 2019-01-15 伊顿公司 For reducing the pilot control mechanism of swing arm bounce
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 (en) 2017-04-28 2021-01-27 Eaton Intelligent Power Limited System for damping mass-induced vibration in machines having hydraulically controlled booms or elongate members
EP3615813A4 (en) 2017-04-28 2021-01-27 Eaton Intelligent Power Limited System with motion sensors for damping mass-induced vibration in machines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6424163U (en) * 1987-08-03 1989-02-09
DE10224731A1 (en) * 2001-06-29 2003-01-16 Linde Ag Method by which a hydraulic operating circuit is protected from overload has a safety valve system incorporated which reacts to a load signal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627838B1 (en) * 1988-02-25 1991-01-11 Bennes Marrel SAFETY VALVE FOR HYDRAULIC RECEIVER AND HYDRAULIC CIRCUIT COMPRISING SAME
JP2001002371A (en) * 1999-06-25 2001-01-09 Kobe Steel Ltd Actuator drive device for construction machine
JP2002022054A (en) * 2000-07-05 2002-01-23 Hitachi Constr Mach Co Ltd Directional control valve
US6912849B2 (en) * 2002-04-09 2005-07-05 Komatsu Ltd. Cylinder driving system and energy regenerating method thereof
DE10253340B4 (en) * 2002-04-26 2007-02-15 Volkmann Gmbh Actuation valve for a two-sided effective pneumatic cylinder and use of such an actuating valve for by means of pneumatic cylinders creel
JP3776067B2 (en) * 2002-08-12 2006-05-17 株式会社クボタ Elevator for paddy field machine
JP4890147B2 (en) * 2006-08-04 2012-03-07 日立建機株式会社 Load holding device for hydraulic actuator circuit
WO2009102740A2 (en) * 2008-02-12 2009-08-20 Parker-Hannifin Corporation Flow management system for hydraulic work machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6424163U (en) * 1987-08-03 1989-02-09
DE10224731A1 (en) * 2001-06-29 2003-01-16 Linde Ag Method by which a hydraulic operating circuit is protected from overload has a safety valve system incorporated which reacts to a load signal

Also Published As

Publication number Publication date
CN102691683B (en) 2016-02-03
EP2503161B1 (en) 2017-10-04
EP2503161A2 (en) 2012-09-26
JP2012197937A (en) 2012-10-18
JP5959252B2 (en) 2016-08-02
CN102691683A (en) 2012-09-26
DE102011014685A1 (en) 2012-09-27

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