ES2043304T3 - Circuito de control de bombas hidraulicas para maquinas moviles para la construccion. - Google Patents

Circuito de control de bombas hidraulicas para maquinas moviles para la construccion.

Info

Publication number
ES2043304T3
ES2043304T3 ES90400994T ES90400994T ES2043304T3 ES 2043304 T3 ES2043304 T3 ES 2043304T3 ES 90400994 T ES90400994 T ES 90400994T ES 90400994 T ES90400994 T ES 90400994T ES 2043304 T3 ES2043304 T3 ES 2043304T3
Authority
ES
Spain
Prior art keywords
pilot
control circuit
valve
proportionality
pumps
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
ES90400994T
Other languages
English (en)
Inventor
Kasuhiko Fujii
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Application granted granted Critical
Publication of ES2043304T3 publication Critical patent/ES2043304T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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
    • E02F9/2292—Systems with two or more pumps
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/255—Flow control functions
    • 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
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of 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
    • F15B2211/355—Pilot pressure 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
    • F15B2211/36—Pilot pressure sensing
    • 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
    • F15B2211/575—Pilot pressure 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
    • F15B2211/70—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
    • 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

Abstract

SE DESCRIBE UN CIRCUITO DE CONTROL DE BOMBA HIDRAULICA PARA UNA MAQUINA DE CONSTRUCCION MOVIL, SIENDO EL CIRCUITO DEL TIPO QUE INCLUYE DIVERSOS ACTUADORES HIDRAULICOS DIVIDIDOS EN DOS GRUPOS AL SER ACCIONADOS POR UNAS BOMBAS PRIMERA Y SEGUNDA (11, 12), RESPECTIVAMENTE, ESTANDO DISPUESTOS UNOS MOTORES DE ACCIONAMIENTO DEL VEHICULO IZQUIERDO Y DERECHO EN LOS GRUPOS RESPECTIVOS, Y UNA VALVULA DE CARGA SITUADA EN EL LADO DE DESCARGA DE LAS BOMBAS PRIMERA Y SEGUNDA (11, 12) Y CONMUTABLE A UNA POSICION PARA SUMINISTRAR LA PRESION DE ACEITE DE LA SEGUNDA BOMBA (12) EN PARALELO A LOS MOTORES DE ACCIONAMIENTO DEL VEHICULO IZQUIERDO Y DERECHO. DE ACUERDO CON LA INVENCION, EL CIRCUITO DE CONTROL ESTA DISPUESTO CON UNA VALVULA DE PROPORCIONALIDAD PILOTO (28) SITUADA ENTRE UN REGULADOR DE CONTROL DE CAUDAL DE DESCARGA PARA LA SEGUNDA BOMBA (12) Y UNA FUENTE DE PRESION PILOTO, Y MEDIOS PARA APLICAR LAS PRESIONES PILOTOS QUE ACTUAN SOBRE LAS VALVULAS DE ACCIONAMIENTO DEL VEHICULO IZQUIERDA Y DERECHA A PUERTOS PILOTO DE LA VALVULA DE PROPORCIONALIDAD (28) PILOTO, SIENDO MANEJADA LA VALVULA DE PROPORCIONALIDAD (28) MEDIANTE LA SUMA DE LAS PRESIONES PILOTO APLICADAS A LOS PUERTOS PILOTO, PARA PRODUCIR UNA PRESION DE CONTROL PARA EL SEGUNDO REGULADOR DE BOMBA (14'')
ES90400994T 1989-07-07 1990-04-11 Circuito de control de bombas hidraulicas para maquinas moviles para la construccion. Expired - Lifetime ES2043304T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1176591A JPH07122276B2 (ja) 1989-07-07 1989-07-07 建設機械の油圧ポンプ制御回路

Publications (1)

Publication Number Publication Date
ES2043304T3 true ES2043304T3 (es) 1993-12-16

Family

ID=16016245

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90400994T Expired - Lifetime ES2043304T3 (es) 1989-07-07 1990-04-11 Circuito de control de bombas hidraulicas para maquinas moviles para la construccion.

Country Status (6)

Country Link
US (1) US5052179A (es)
EP (1) EP0407231B1 (es)
JP (1) JPH07122276B2 (es)
KR (1) KR940009216B1 (es)
DE (1) DE69002895T2 (es)
ES (1) ES2043304T3 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251232B (en) * 1990-09-29 1995-01-04 Samsung Heavy Ind Automatic actuating system for actuators of excavator
DE4100988C2 (de) * 1991-01-15 2001-05-10 Linde Ag Hydraulisches Antriebssystem
US5063739A (en) * 1991-02-19 1991-11-12 Caterpillar Inc. Load sensing hydraulic control system
KR100200028B1 (ko) * 1994-10-29 1999-06-15 토니 헬샴 중장비의 직진주행장치
GB9425273D0 (en) * 1994-12-14 1995-02-08 Trinova Ltd Hydraulic control system
IT1289120B1 (it) * 1996-07-04 1998-09-25 Fki Fai Komatsu Ind Spa Circuito idraulico di comando per organi di lavoro,in particolare in macchine movimento terra
US6003313A (en) * 1996-10-21 1999-12-21 Farrar; Johnny High pressure to low pressure exchange system for hydraulic drives
JP4111286B2 (ja) * 1998-06-30 2008-07-02 コベルコ建機株式会社 建設機械の走行制御方法及び同装置
KR100503611B1 (ko) * 1998-07-24 2005-09-26 두산인프라코어 주식회사 텔레스코픽 핸들러의 유압 제어 시스템
JP3491600B2 (ja) * 2000-04-13 2004-01-26 コベルコ建機株式会社 建設機械の油圧制御回路
JP4290861B2 (ja) * 2000-07-28 2009-07-08 コベルコクレーン株式会社 クレーンの油圧回路
JP3614121B2 (ja) * 2001-08-22 2005-01-26 コベルコ建機株式会社 建設機械の油圧装置
EP1666711B1 (en) * 2003-09-02 2016-07-20 Komatsu Ltd. Method and device for controlling power output of engine for working machine
JP2006329341A (ja) * 2005-05-26 2006-12-07 Kobelco Contstruction Machinery Ltd 作業機械の油圧制御装置
FR2890944B1 (fr) * 2005-09-19 2007-10-26 Seb Sa Appareil electromenager comportant des moyens pour detecter l'ouverture d'un bouchon.
JP4380643B2 (ja) * 2006-02-20 2009-12-09 コベルコ建機株式会社 作業機械の油圧制御装置
ITMO20070097A1 (it) * 2007-03-20 2008-09-21 Safim S P A "apparato idraulico"
KR100974283B1 (ko) * 2008-08-08 2010-08-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 굴삭 및 파이프 레잉 작업을 위한 유량 분배 시스템
CN103649554B (zh) * 2011-03-15 2016-05-04 胡斯可国际股份有限公司 基于优先权将流体从多个泵分配至多个液压功能的系统
KR101975062B1 (ko) * 2011-12-27 2019-05-03 두산인프라코어 주식회사 건설기계의 유압시스템
WO2016072535A1 (ko) * 2014-11-05 2016-05-12 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 주행직진장치 및 그 제어방법
KR102388136B1 (ko) * 2016-05-18 2022-04-19 현대두산인프라코어(주) 건설 기계의 안전 시스템
KR102540110B1 (ko) * 2017-01-10 2023-06-05 에이치디현대인프라코어 주식회사 건설 기계의 유압 시스템
US11566400B2 (en) 2018-03-19 2023-01-31 Volvo Construction Equipment Ab Electrically powered hydraulic system and a method for controlling an electrically powered hydraulic system
JP6992721B2 (ja) * 2018-09-28 2022-01-13 コベルコ建機株式会社 走行式作業機械の油圧駆動装置
JP7268504B2 (ja) * 2019-06-28 2023-05-08 コベルコ建機株式会社 油圧制御装置

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US3987623A (en) * 1976-01-23 1976-10-26 Caterpillar Tractor Co. Controlled priority fluid system of a crawler type vehicle
US4055046A (en) * 1976-12-22 1977-10-25 Caterpillar Tractor Co. Control system having override for fluid operated work elements
US4073141A (en) * 1977-03-17 1978-02-14 Caterpillar Tractor Co. Fluid control system with priority flow
US4087968A (en) * 1977-04-28 1978-05-09 Caterpillar Tractor Co. Flow control valve for combining two dissimilar independent systems to a common pressure source
JPS55135342A (en) * 1979-04-06 1980-10-22 Victor Co Of Japan Ltd Reproducing stylus of reproducing element of variation detection type for electrostatic capacity value
US4426194A (en) * 1981-03-06 1984-01-17 Sundstrand Corporation Viscosity compensating circuits
JPS57197336A (en) * 1981-05-29 1982-12-03 Komatsu Ltd Oil-pressure circuit for turning excavator
DE3237095A1 (de) * 1982-10-07 1984-04-12 Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter Ventil und anwendungen des ventils
DE3609399A1 (de) * 1985-03-23 1986-10-16 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Hydrauliksystem
CN1007632B (zh) * 1985-12-28 1990-04-18 日立建机株式会社 液压建筑机械的控制系统

Also Published As

Publication number Publication date
US5052179A (en) 1991-10-01
JPH0339528A (ja) 1991-02-20
EP0407231B1 (en) 1993-08-25
DE69002895T2 (de) 1994-01-13
DE69002895D1 (de) 1993-09-30
KR940009216B1 (ko) 1994-10-01
EP0407231A1 (en) 1991-01-09
JPH07122276B2 (ja) 1995-12-25
KR910003223A (ko) 1991-02-27

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