EP0615024B1 - Commande de vitesse, ne dépendant pas de la pression de charge pour éléments hydrauliques de réglage sur des machines de construction - Google Patents

Commande de vitesse, ne dépendant pas de la pression de charge pour éléments hydrauliques de réglage sur des machines de construction Download PDF

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Publication number
EP0615024B1
EP0615024B1 EP94101011A EP94101011A EP0615024B1 EP 0615024 B1 EP0615024 B1 EP 0615024B1 EP 94101011 A EP94101011 A EP 94101011A EP 94101011 A EP94101011 A EP 94101011A EP 0615024 B1 EP0615024 B1 EP 0615024B1
Authority
EP
European Patent Office
Prior art keywords
pressure
control
line
load
spool
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.)
Expired - Lifetime
Application number
EP94101011A
Other languages
German (de)
English (en)
Other versions
EP0615024A2 (fr
EP0615024A3 (fr
Inventor
Walter Kolb
Gustav Leidinger
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel 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 O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Publication of EP0615024A2 publication Critical patent/EP0615024A2/fr
Publication of EP0615024A3 publication Critical patent/EP0615024A3/fr
Application granted granted Critical
Publication of EP0615024B1 publication Critical patent/EP0615024B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
    • F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • 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
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and 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
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/3055—In combination with a pressure compensating valve the pressure compensating valve is arranged between directional control valve and return line
    • 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
    • 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
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • 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
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle 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
    • F15B2211/75—Control of speed of the output member

Definitions

  • Control piston 21, 22 as well as the control piston 5 can be used in load-sensing systems usually with pressure compensators, not shown here for the mutually unaffected simultaneous actuation of pushing Loads in the lines 20 from the pump 17 to the respective control piston 5,21,22.
  • F ground pressure

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Claims (3)

  1. Commande de vitesse, indépendante de la pression d'une charge, pour des éléments de positionnement hydrauliques tels que des cylindres (3), des moteurs hydrauliques (28) ou similaires, dans le cas de charges qui se déplacent en avance de marche sur des machines de chantier, comme par exemple des chargeurs à roues, des pelles mécaniques, des niveleuses ou similaires, comprenant au moins une pompe (17) qui refoule un agent sous pression depuis un réservoir (9) avec un volume de refoulement modifié par un régulateur (16) et au moins un tiroir de commande (4), comprenant au moins un piston de commande (5) pour l'actionnement du ou des éléments de positionnement (3, 28), dans laquelle est prévue une balance de pression (11) et la zone de retour du piston de commande (5) est réalisée sous forme de diaphragme à pression différentielle (8), la pression de l'écoulement d'huile avant la traversée du diaphragme à pression différentielle (8) pouvant être transmise via une conduite (7) vers le côté (10) de la balance de pression (11) détourné de la chambre à ressort (14),
    caractérisée en ce que la balance de pression (11) est mise en place dans la conduite de liaison (6) qui va depuis la chambre (2) qu'il s'agit de vider, de l'élément (3) ou des éléments (28) de positionnement, jusqu'au piston de commande (5), et en ce qu'il est prévu une conduite de commande (12) qui palpe la pression après le diaphragme à pression différentielle (8) ainsi qu'une conduite (15) servant à annoncer la pression de charge, qui palpe la pression de charge engendrée par la pompe (17), lesdites conduites menant respectivement à une valve d'inversion commune (13), de sorte que seule la pression respectivement plus élevée provenant de la valve d'inversion (13) est transmise depuis la conduite de commande (12) et depuis la conduite servant à annoncer la pression de charge (15), via une autre conduite de commande (24) vers la chambre à ressort (14) de la balance de pression (11).
  2. Commande de vitesse, indépendante de la pression d'une charge, pour des éléments de positionnement hydrauliques tels que des cylindres (3), des moteurs hydrauliques (28) ou similaires, dans le cas de charges qui se déplacent en avance de marche sur des machines de chantier, comme par exemple des chargeurs à roues, des pelles mécaniques, des niveleuses ou similaires, comprenant au moins une pompe (17) qui refoule un agent sous pression depuis un réservoir (9) avec un volume de refoulement modifié par un régulateur (16) et au moins un tiroir de commande (4), comprenant au moins un piston de commande (5) pour l'actionnement du ou des éléments de positionnement, dans laquelle est prévue une balance de pression (11) dans la conduite entre la sortie (25) du piston de commande (5) et le réservoir (9), la zone de retour du piston de commande (5) étant réalisée sous forme de diaphragme à pression différentielle (8) et la pression de l'écoulement d'huile avant la traversée du diaphragme à pression différentielle (8) peut être transmise via une conduite (29) vers le côté (27) de la balance de pression (11) détourné de la chambre à ressort (14),
    caractérisée en ce qu'il est prévu une conduite de commande (26) qui palpe la pression après le diaphragme à pression différentielle (8) ainsi qu'une conduite (15) servant à annoncer la pression de charge, qui palpe la pression de charge engendrée par la pompe (17), lesdites conduites menant respectivement à une valve d'inversion commune (13), de sorte que seule la pression respectivement plus élevée provenant de la valve d'inversion (13) est transmise depuis la conduite de commande (26) et depuis la conduite servant à annoncer la pression de charge (15), via une conduite de commande (24) vers la chambre à ressort (14) de la balance de pression (11).
  3. Commande selon l'une ou l'autre des revendications 1 et 2,
    caractérisée en ce qu'il est prévu une valve (19) de post-aspiration, agencée dans la région de la conduite (20') d'admission de fluide sous pression, ladite valve remplissant l'espace annulaire (18) de l'élément de positionnement réalisé sous forme de cylindre (3), ou alimentant le moteur hydraulique (28) faisant alors office de pompe.
EP94101011A 1993-03-12 1994-01-25 Commande de vitesse, ne dépendant pas de la pression de charge pour éléments hydrauliques de réglage sur des machines de construction Expired - Lifetime EP0615024B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4307872 1993-03-12
DE4307872A DE4307872C2 (de) 1993-03-12 1993-03-12 Lastdruckunabhängige Steuerung der Geschwindigkeit von hydraulischen Stellelementen

Publications (3)

Publication Number Publication Date
EP0615024A2 EP0615024A2 (fr) 1994-09-14
EP0615024A3 EP0615024A3 (fr) 1996-09-25
EP0615024B1 true EP0615024B1 (fr) 2001-04-11

Family

ID=6482620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101011A Expired - Lifetime EP0615024B1 (fr) 1993-03-12 1994-01-25 Commande de vitesse, ne dépendant pas de la pression de charge pour éléments hydrauliques de réglage sur des machines de construction

Country Status (4)

Country Link
EP (1) EP0615024B1 (fr)
AT (1) ATE200538T1 (fr)
DE (2) DE4307872C2 (fr)
ES (1) ES2155837T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632201A1 (de) * 1996-08-09 1998-02-12 Bosch Gmbh Robert Hydraulische Steuereinrichtung
DE10321914A1 (de) 2003-05-15 2004-12-02 Bosch Rexroth Ag Hydraulische Steueranordnung
CN104314896A (zh) * 2014-09-26 2015-01-28 山东恒堃机械有限公司 一种移动模架模板控制系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906670A1 (de) * 1979-02-21 1980-09-04 Bosch Gmbh Robert Ventileinrichtung zur lastkompensierten steuerung eines hydraulischen verbrauchers
DE3321483A1 (de) * 1983-06-14 1984-12-20 Linde Ag, 6200 Wiesbaden Hydraulische einrichtung mit einer pumpe und mindestens zwei von dieser beaufschlagten verbrauchern hydraulischer energie
DE3532816A1 (de) * 1985-09-13 1987-03-26 Rexroth Mannesmann Gmbh Steueranordnung fuer mindestens zwei von mindestens einer pumpe gespeiste hydraulische verbraucher
DE3644737C2 (de) * 1985-09-13 1995-11-23 Rexroth Mannesmann Gmbh Steueranordnung für mindestens zwei von mindestens einer Pumpe gespeiste hydraulische Verbraucher
DE3536218A1 (de) * 1985-10-10 1987-04-16 Heilmeier & Weinlein Zweiwege-stromregler
DE3817218A1 (de) * 1987-06-11 1988-12-22 Mannesmann Ag Hydraulisches steuersystem fuer einen hydraulikbagger
DE3800188A1 (de) * 1988-01-07 1989-07-20 Danfoss As Hydraulische sicherheitsbremsventilanordnung
WO1989009343A1 (fr) * 1988-03-23 1989-10-05 Hitachi Construction Machinery Co., Ltd. Unite d'entrainement hydraulique
JP2520314B2 (ja) * 1990-01-18 1996-07-31 株式会社小松製作所 油圧掘削機の走行速度切換装置
DE4027047A1 (de) * 1990-08-27 1992-03-05 Rexroth Mannesmann Gmbh Ventilanordnung zur lastunabhaengigen steuerung mehrerer hydraulischer verbraucher
DE69115271T2 (de) * 1991-03-07 1996-05-15 Caterpillar Inc Negativen lastdruck und energie ausnutzendes system.
WO1992018711A1 (fr) * 1991-04-15 1992-10-29 Hitachi Construction Machinery Co., Ltd. Systeme d'entrainement hydraulique dans un engin de chantier
DE4210252C1 (fr) * 1992-03-28 1993-09-02 O & K Orenstein & Koppel Ag, 13581 Berlin, De

Also Published As

Publication number Publication date
DE4307872A1 (de) 1994-09-22
DE59409720D1 (de) 2001-05-17
ATE200538T1 (de) 2001-04-15
ES2155837T3 (es) 2001-06-01
EP0615024A2 (fr) 1994-09-14
DE4307872C2 (de) 2001-05-17
EP0615024A3 (fr) 1996-09-25

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