EP1589232A3 - Hydraulic control device - Google Patents

Hydraulic control device Download PDF

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Publication number
EP1589232A3
EP1589232A3 EP05008582A EP05008582A EP1589232A3 EP 1589232 A3 EP1589232 A3 EP 1589232A3 EP 05008582 A EP05008582 A EP 05008582A EP 05008582 A EP05008582 A EP 05008582A EP 1589232 A3 EP1589232 A3 EP 1589232A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic
control device
hydraulic control
piston
sliding piston
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Withdrawn
Application number
EP05008582A
Other languages
German (de)
French (fr)
Other versions
EP1589232A2 (en
Inventor
Dieter Knopff
Original Assignee
Botschafter-Knopff IIse
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 Botschafter-Knopff IIse filed Critical Botschafter-Knopff IIse
Priority to EP07017554A priority Critical patent/EP1890044A1/en
Publication of EP1589232A2 publication Critical patent/EP1589232A2/en
Publication of EP1589232A3 publication Critical patent/EP1589232A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • 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
    • F15B20/005—Leakage; Spillage; Hose burst
    • 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
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
    • 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
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Abstract

Bei einer Hydraulik-Ventileinrichtung mit einem einen Schiebekolben aufweisenden doppeltwirkenden Zylinder mit zwei Ein- oder Ausgängen für das der Steuerung des Schiebekolbens im Zylinder dienende Hydraulikmedium wie ein Hydrauliköl ist wenigstens einem Ein- oder Ausgang ein manuell, gesteuert oder automatisch einstellbares Sitzventil zugeordnet. Dadurch werden Nachteile auf Grund Leckage des Schubkolbens vermieden. Durch diese Maßnahme kann die Lebensdauer von Hydraulik-Ventil-Einrichtungen auch bei Alterung und Verschleiß verlängert werden.

Figure imgaf001
In a hydraulic valve device with a sliding piston having double-acting cylinder with two inputs or outputs for the control of the sliding piston in the cylinder serving hydraulic medium such as hydraulic oil is associated with at least one input or output a manually controlled or automatically adjustable seat valve. As a result, disadvantages due to leakage of the thrust piston are avoided. By this measure, the life of hydraulic valve devices can be extended even with aging and wear.
Figure imgaf001
EP05008582A 2004-04-23 2005-04-20 Hydraulic control device Withdrawn EP1589232A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07017554A EP1890044A1 (en) 2004-04-23 2005-04-20 Hydraulic control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410020371 DE102004020371A1 (en) 2004-04-23 2004-04-23 Hydraulic control device
DE102004020371 2004-04-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07017554A Division EP1890044A1 (en) 2004-04-23 2005-04-20 Hydraulic control device

Publications (2)

Publication Number Publication Date
EP1589232A2 EP1589232A2 (en) 2005-10-26
EP1589232A3 true EP1589232A3 (en) 2006-03-29

Family

ID=34935420

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07017554A Withdrawn EP1890044A1 (en) 2004-04-23 2005-04-20 Hydraulic control device
EP05008582A Withdrawn EP1589232A3 (en) 2004-04-23 2005-04-20 Hydraulic control device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07017554A Withdrawn EP1890044A1 (en) 2004-04-23 2005-04-20 Hydraulic control device

Country Status (2)

Country Link
EP (2) EP1890044A1 (en)
DE (1) DE102004020371A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2837833A3 (en) * 2013-08-05 2015-05-27 Tries GmbH & CO. KG Manual controller for a hydraulic control system
CN113970008B (en) * 2021-10-16 2024-02-27 山东锐凯工程机械有限公司 Automatic control method and system for multi-way valve for hydraulic excavator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754018A (en) * 1953-07-13 1956-07-10 Yale & Towne Mfg Co Hydraulic power lines for industrial truck
GB1264495A (en) * 1968-05-22 1972-02-23
EP0056770A2 (en) * 1981-01-19 1982-07-28 Bendix Automation Company A regenerative and anti-cavitation hydraulic system for an excavator
DE8416495U1 (en) * 1984-08-23 Knopff, Dieter, 3330 Helmstedt Control device for hydraulic working links
US5331882A (en) * 1993-04-05 1994-07-26 Deere & Company Control valve system with float valve
JPH08218419A (en) * 1995-02-16 1996-08-27 Shin Caterpillar Mitsubishi Ltd Hydraulic circuit of tilt type two-way dozer
JP2001221204A (en) * 2000-02-07 2001-08-17 Sanyo Kiki Co Ltd Oil pressure control device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536106A1 (en) * 1975-08-13 1977-02-24 Hubert Odenthal Safety valve for holding hydraulic motor under load - is biased into closed position by motor outlet pressure
DE2834480C2 (en) * 1978-08-05 1986-01-02 Baas Technik GmbH, 2000 Wedel Control device of a shovel loader or the like.
DE8029716U1 (en) * 1980-11-07 1982-04-15 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic control device for two working cylinders
DE3705170C1 (en) * 1987-02-18 1988-08-18 Heilmeier & Weinlein Hydraulic control device
US5207059A (en) * 1992-01-15 1993-05-04 Caterpillar Inc. Hydraulic control system having poppet and spool type valves
KR0145143B1 (en) * 1992-10-29 1998-08-01 오까다 하지메 Hydraulic control valve apparatus and hydraulic drive system
DE4436548C2 (en) * 1994-10-13 2000-12-21 Mannesmann Rexroth Ag Valve arrangement for actuating a hydraulic consumer
JP3691593B2 (en) * 1996-07-05 2005-09-07 株式会社豊田自動織機 Hydraulic equipment for cargo handling
DE29716082U1 (en) * 1997-09-06 1997-11-27 Hans Sauter Gmbh Landtechnik S 413-way ball valve combination for installation in the supply line of double-acting cylinders
DE19834955B4 (en) * 1998-08-03 2008-02-07 Linde Material Handling Gmbh Hydrostatic drive system
DE10006908A1 (en) * 2000-02-16 2001-08-23 Caterpillar Sarl Genf Geneva Hydraulic cylinder unit for raising and lowering front arm on root harvester has branch pipe leading back to oil tank which is fitted with shut-off valve and pressure-regulating valve
DE10034931B4 (en) * 2000-07-18 2011-03-10 Linde Material Handling Gmbh Control valve means
DE10150993A1 (en) * 2001-10-12 2003-04-17 Weidemann Gmbh & Co Kg High speed tipper valve for loader shovel is located in volume flow return pipe on piston rod side of cylinder to increase cylinder speed
JP2005098455A (en) * 2003-09-26 2005-04-14 Mitsubishi Heavy Ind Ltd Hydraulic controller of industrial machinery

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8416495U1 (en) * 1984-08-23 Knopff, Dieter, 3330 Helmstedt Control device for hydraulic working links
US2754018A (en) * 1953-07-13 1956-07-10 Yale & Towne Mfg Co Hydraulic power lines for industrial truck
GB1264495A (en) * 1968-05-22 1972-02-23
EP0056770A2 (en) * 1981-01-19 1982-07-28 Bendix Automation Company A regenerative and anti-cavitation hydraulic system for an excavator
US5331882A (en) * 1993-04-05 1994-07-26 Deere & Company Control valve system with float valve
JPH08218419A (en) * 1995-02-16 1996-08-27 Shin Caterpillar Mitsubishi Ltd Hydraulic circuit of tilt type two-way dozer
JP2001221204A (en) * 2000-02-07 2001-08-17 Sanyo Kiki Co Ltd Oil pressure control device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12 26 December 1996 (1996-12-26) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25 12 April 2001 (2001-04-12) *

Also Published As

Publication number Publication date
DE102004020371A1 (en) 2005-11-10
EP1890044A1 (en) 2008-02-20
EP1589232A2 (en) 2005-10-26

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