ES2043915T3 - Un circuito hidraulico para un cilindro. - Google Patents

Un circuito hidraulico para un cilindro.

Info

Publication number
ES2043915T3
ES2043915T3 ES89103400T ES89103400T ES2043915T3 ES 2043915 T3 ES2043915 T3 ES 2043915T3 ES 89103400 T ES89103400 T ES 89103400T ES 89103400 T ES89103400 T ES 89103400T ES 2043915 T3 ES2043915 T3 ES 2043915T3
Authority
ES
Spain
Prior art keywords
cylinder
directional control
control valve
hydraulic circuit
valve
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
ES89103400T
Other languages
English (en)
Inventor
Sachio Hidaka
Hiroshi Shibata
Hideaki Yoshimatu
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 ES2043915T3 publication Critical patent/ES2043915T3/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
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
    • 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
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks

Landscapes

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

Abstract

SE DESCRIBE UN CIRCUITO HIDRAULICO ADECUADO PARA UTILIZAR CON UNA EXCAVADORA MECANICA U OTRA MAQUINA DEL CAMPO DE LA CONSTRUCCION, MAS ESPECIFICAMENTE CIRCUITO HIDRAULICO PARA UN CILINDRO DE TRANSMISION DE ENERGIA HIDRAULICA DEL TIPO QUE ESTA ADAPTADO PARA CONTROLAR LA CIRCULACION DE ACEITE A PRESION A Y DESDE DOS CAMARAS DE ACEITE DEL CILINDRO (4) MEDIANTE LA CONMUTACION DE LA POSICION DE UNA VALVULA DE CONTROL DIRECCIONAL (2) QUE ESTA EN COMUNICACION CON UNA FUENTE DE ACEITE A PRESION (35), CONSTANDO EL CIRCUITO HIDRAULICO DE: UNA VALVULA LOGICA (5) SITUADA ENTRE LA VALVULA DE CONTROL DIRECCIONAL (2) Y UNA CAMARA DE ACEITE DE CARGA DEL CILINDRO (42), Y TIENE UN PRIMER (51) Y UN SEGUNDO (52) ACCESOS CONECTADOS A LA VALVULA DE CONTROL DIRECCIONAL (2) Y A LA CAMARA DE ACEITE DE CARGA (42), RESPECTIVAMENTE; Y UNA VALVULA DE SELECCION (6) QUE OPERA EN RELACION CON LA CONMUTACION DE LA VALVULA DE CONTROL DIRECCIONAL (2) PARA COMUNICAR UNA CAMARA DE RESORTE (55) DE LA VALVULA LOGICA (5) CON UNCONDUCTO ENTRE EL PRIMER ACCESO (51) Y LA VALVULA DE CONTROL DIRECCIONAL (2) EN UNA FASE OPERACIONAL DE SUMINISTRO DE ACEITE A PRESION A UNA CAMARA DE DESCENSO DE CARGA (41) DEL CILINDRO (4) Y PARA COMUNICAR LA CAMARA DE RESORTE (55) CON EL SEGUNDO ACCESO (52) EN OTRAS FASES OPERACIONALES.
ES89103400T 1988-03-03 1989-02-27 Un circuito hidraulico para un cilindro. Expired - Lifetime ES2043915T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988028563U JPH01133503U (es) 1988-03-03 1988-03-03

Publications (1)

Publication Number Publication Date
ES2043915T3 true ES2043915T3 (es) 1994-01-01

Family

ID=12252110

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89103400T Expired - Lifetime ES2043915T3 (es) 1988-03-03 1989-02-27 Un circuito hidraulico para un cilindro.

Country Status (6)

Country Link
US (1) US4955283A (es)
EP (1) EP0331076B1 (es)
JP (1) JPH01133503U (es)
KR (1) KR930005274B1 (es)
DE (1) DE68909069T2 (es)
ES (1) ES2043915T3 (es)

Families Citing this family (43)

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JPH0663521B2 (ja) * 1988-02-29 1994-08-22 株式会社小松製作所 操作弁装置
JP2559612B2 (ja) * 1988-02-29 1996-12-04 株式会社小松製作所 操作弁装置
WO1990001588A1 (fr) * 1988-08-02 1990-02-22 Kabushiki Kaisha Komatsu Seisakusho Regulation de vitesse de deplacement pour machines de chantier a moteur hydraulique
DE3922553C2 (de) * 1989-07-08 2002-03-14 Mannesmann Rexroth Ag Vorrichtung zur Entlastung eines unter hohem Druck stehenden mit Hydraulikflüssigkeit gefüllten Arbeitsraumes
IT1244021B (it) * 1990-11-21 1994-06-28 Siti Circuito idraulico per un apparato di pressatura e apparato di pressatura impiegante il circuito idraulico
US5207059A (en) * 1992-01-15 1993-05-04 Caterpillar Inc. Hydraulic control system having poppet and spool type valves
SE470446B (sv) * 1992-08-21 1994-03-28 Electrolux Ab Hydraulmotor försedd med en by-pass-ledning mellan in- och utloppsledning, i vilken by-pass-ledning är anordnad en huvudventil för pådrag respektive stopp av hydraulmotorn
US5349151A (en) * 1993-02-08 1994-09-20 Savair Inc. Low impact flow control device
US5331882A (en) * 1993-04-05 1994-07-26 Deere & Company Control valve system with float valve
DE4496043T1 (de) * 1993-08-13 1996-06-27 Komatsu Mfg Co Ltd Durchflussregelkreis in einer hydraulischen Schaltung
JPH07127607A (ja) * 1993-09-07 1995-05-16 Yutani Heavy Ind Ltd 作業機械の油圧装置
JPH07139507A (ja) * 1993-11-15 1995-05-30 Shin Caterpillar Mitsubishi Ltd 建設機械のアクチュエータ制御装置
KR970702456A (ko) * 1994-03-29 1997-05-13 안자키 사토루 파일럿압 작동식 방향 제어 밸브 및 작동실린더 제어장치(Pilot pressure operated directional control valve and operation cylinder control device)
JPH08114202A (ja) * 1994-09-30 1996-05-07 Samsung Heavy Ind Co Ltd ホールディングチェックコントロールバルブ
US5490384A (en) * 1994-12-08 1996-02-13 Caterpillar Inc. Hydraulic flow priority system
DE19528981C1 (de) * 1995-08-07 1996-10-02 Heilmeier & Weinlein Verfahren zum Steuern eines Hydroverbrauchers und hydraulische Steuervorrichtung zur Durchführung des Verfahrens
AU1087997A (en) * 1995-12-15 1997-07-14 Commercial Intertech Limited Control valves
US5921165A (en) * 1996-08-08 1999-07-13 Hitachi Construction Machinery Co., Ltd. Hydraulic control system
JP3478931B2 (ja) * 1996-09-20 2003-12-15 新キャタピラー三菱株式会社 油圧回路
JP3919399B2 (ja) * 1998-11-25 2007-05-23 カヤバ工業株式会社 油圧制御回路
DE60019500T2 (de) * 1999-07-23 2006-02-23 Kabushiki Kaisha Toyota Jidoshokki, Kariya Steuervorrichtung für Zylinder
EP1143151B1 (en) * 1999-10-20 2007-01-03 Hitachi Construction Machinery Co., Ltd. Pipe breakage control valve device
JP3727828B2 (ja) * 2000-05-19 2005-12-21 日立建機株式会社 配管破断制御弁装置
KR20030052031A (ko) * 2001-12-20 2003-06-26 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설중장비용 유압밸브의 제어장치
JP3915622B2 (ja) * 2002-07-30 2007-05-16 コベルコ建機株式会社 油圧アクチュエータ回路の負荷保持装置
KR100611718B1 (ko) * 2005-06-17 2006-08-11 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 홀딩밸브를 갖는 압력보상형 유압회로
US7213502B2 (en) * 2005-09-09 2007-05-08 Caterpillar Inc Robustly stable servo-controlled metering poppet valve
WO2007069748A1 (ja) * 2005-12-14 2007-06-21 Kayaba Industry Co., Ltd. アクチュエータ制御装置
WO2007079041A2 (en) * 2005-12-30 2007-07-12 Roger Hirsch Resistance welding machine pinch point safety sensor
EP1895168B1 (en) * 2006-09-01 2009-05-06 Parker Hannifin Aktiebolag Valve arrangement
EP1895169A1 (en) * 2006-09-04 2008-03-05 OIL CONTROL S.p.A. A high pressure relief and control valve assembly
WO2011003210A1 (de) * 2009-07-06 2011-01-13 Bucher Hydraulics Ag Anordnung zur bereitstellung eines veränderbaren drosselquerschnitts für einen fluidstrom
US8944103B2 (en) 2011-08-31 2015-02-03 Caterpillar Inc. Meterless hydraulic system having displacement control valve
US8863509B2 (en) * 2011-08-31 2014-10-21 Caterpillar Inc. Meterless hydraulic system having load-holding bypass
US8966891B2 (en) * 2011-09-30 2015-03-03 Caterpillar Inc. Meterless hydraulic system having pump protection
US9670943B2 (en) * 2013-04-22 2017-06-06 Parker-Hannifin Corporation Method for controlling pressure in a hydraulic actuator
CN104019072A (zh) * 2014-06-11 2014-09-03 山重建机有限公司 一种先导式多路阀系统和液压系统
US20170023149A1 (en) * 2015-07-22 2017-01-26 Cnh Industrial America Llc Hydraulic signal control system and method
DE102016006545A1 (de) * 2016-05-25 2017-11-30 Hydac System Gmbh Ventilvorrichtung
DE102016124118B4 (de) * 2016-12-13 2021-12-09 Voith Patent Gmbh Hydraulischer Antrieb mit Eil- und Lasthub
KR102638727B1 (ko) * 2018-03-22 2024-02-19 스미도모쥬기가이고교 가부시키가이샤 쇼벨
US12135046B2 (en) 2020-05-22 2024-11-05 Volvo Construction Equipment Ab Hydraulic machine
WO2022241586A1 (zh) 2021-05-16 2022-11-24 浙江吉利控股集团有限公司 一种液压控制阀、液压控制系统及变速器

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DE2314590A1 (de) * 1973-03-23 1974-09-26 Parker Hannifin Corp Ventilanordnung
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US4204459A (en) * 1978-04-19 1980-05-27 Caterpillar Tractor Co. Combination check and flow control valve for hydraulic systems
SE419021B (sv) * 1979-02-22 1981-07-06 Ellemtel Utvecklings Ab Festanordning elektrisk komponent med tva cylindriska i forhallande till varandra vridbara delar
IT1118648B (it) * 1979-05-18 1986-03-03 Chs Cinotto Giuseppe Hydraulic Dispositivo di sicurezza per circuiti idraulici particolarmente di scavatrici sollevatori e simili
US4509406A (en) * 1980-06-16 1985-04-09 Caterpillar Tractor Co. Pressure reducing valve for dead engine lowering
US4417502A (en) * 1980-11-17 1983-11-29 Dresser Industries, Inc. Load supporting hydraulic circuit with emergency automatic load restraint
US4571941A (en) * 1980-12-27 1986-02-25 Hitachi Construction Machinery Co, Ltd. Hydraulic power system
DE3128044A1 (de) * 1981-07-16 1983-02-03 Mannesmann Rexroth GmbH, 8770 Lohr "vorrichtung zum betaetigen eines doppeltwirkenden arbeitszylinders"
JPS61186804U (es) * 1985-05-15 1986-11-21
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Also Published As

Publication number Publication date
JPH01133503U (es) 1989-09-12
US4955283A (en) 1990-09-11
EP0331076B1 (en) 1993-09-15
KR930005274B1 (ko) 1993-06-17
DE68909069T2 (de) 1994-02-03
EP0331076A1 (en) 1989-09-06
KR890014843A (ko) 1989-10-25
DE68909069D1 (de) 1993-10-21

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