CN1011526B - 液压传动系统 - Google Patents

液压传动系统

Info

Publication number
CN1011526B
CN1011526B CN88104005A CN88104005A CN1011526B CN 1011526 B CN1011526 B CN 1011526B CN 88104005 A CN88104005 A CN 88104005A CN 88104005 A CN88104005 A CN 88104005A CN 1011526 B CN1011526 B CN 1011526B
Authority
CN
China
Prior art keywords
pressure
valve
hydraulic
mentioned
control
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
Application number
CN88104005A
Other languages
English (en)
Chinese (zh)
Other versions
CN1031270A (zh
Inventor
和泉锐机
平田东一
野沢勇作
下乌正彦
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Publication of CN1031270A publication Critical patent/CN1031270A/zh
Publication of CN1011526B publication Critical patent/CN1011526B/zh
Expired legal-status Critical Current

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Images

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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet 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
    • E02F9/2221—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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
CN88104005A 1987-06-30 1988-06-30 液压传动系统 Expired CN1011526B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP162703/87 1987-06-30
JP16270387 1987-06-30
JP234992/87 1987-09-21
JP23499287 1987-09-21

Publications (2)

Publication Number Publication Date
CN1031270A CN1031270A (zh) 1989-02-22
CN1011526B true CN1011526B (zh) 1991-02-06

Family

ID=26488401

Family Applications (1)

Application Number Title Priority Date Filing Date
CN88104005A Expired CN1011526B (zh) 1987-06-30 1988-06-30 液压传动系统

Country Status (7)

Country Link
US (1) US4945723A (enExample)
EP (1) EP0297682B1 (enExample)
KR (1) KR920007653B1 (enExample)
CN (1) CN1011526B (enExample)
AU (1) AU603907B2 (enExample)
DE (1) DE3876518T2 (enExample)
IN (1) IN171522B (enExample)

Families Citing this family (36)

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IN171213B (enExample) * 1988-01-27 1992-08-15 Hitachi Construction Machinery
EP0354972B1 (en) * 1988-02-24 1994-06-01 Hitachi Construction Machinery Co., Ltd. Valve device
KR920006546B1 (ko) * 1988-03-23 1992-08-08 히다찌 겐끼 가부시기가이샤 유압구동장치
US5186000A (en) * 1988-05-10 1993-02-16 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system for construction machines
KR940009219B1 (ko) * 1989-03-30 1994-10-01 히다찌 겐끼 가부시기가이샤 장궤식차량의 유압구동장치
DE69120818T2 (de) * 1990-05-15 1996-12-05 Kabushiki Kaisha Komatsu Seisakusho, Tokio/Tokyo Hydraulisches system
US5137254A (en) * 1991-09-03 1992-08-11 Caterpillar Inc. Pressure compensated flow amplifying poppet valve
WO1993009350A1 (en) * 1991-11-04 1993-05-13 Caterpillar Inc. Pressure compensated flow amplifying poppet valve
US5170692A (en) * 1991-11-04 1992-12-15 Vickers, Incorporated Hydraulic control system
EP0862698B1 (en) * 1995-12-15 2003-03-05 Parker Hannifin Plc Control valves
US6050090A (en) * 1996-06-11 2000-04-18 Kabushiki Kaisha Kobe Seiko Sho Control apparatus for hydraulic excavator
JP3567051B2 (ja) * 1996-06-12 2004-09-15 新キャタピラー三菱株式会社 油圧アクチュエータ用の操作制御装置
US6293181B1 (en) 1998-04-16 2001-09-25 Caterpillar Inc. Control system providing a float condition for a hydraulic cylinder
US6089528A (en) * 1998-12-18 2000-07-18 Caterpillar Inc. Poppet valve control with sealing element providing improved load drift control
DE19904616A1 (de) * 1999-02-05 2000-08-10 Mannesmann Rexroth Ag Steueranordnung für wenigstens zwei hydraulische Verbraucher und Druckdifferenzventil dafür
US6360538B1 (en) 1999-07-27 2002-03-26 Caterpillar Inc. Method and an apparatus for an electro-hydraulic system on a work machine
US6173572B1 (en) 1999-09-23 2001-01-16 Caterpillar Inc. Method and apparatus for controlling a bypass valve of a fluid circuit
US6918248B2 (en) * 2001-04-17 2005-07-19 Caterpillar Inc Independent metering valve assembly for multiple hydraulic load functions
DE10340504B4 (de) * 2003-09-03 2006-08-24 Sauer-Danfoss Aps Ventilanordnung zur Steuerung eines Hydraulikantriebs
EP1676963A3 (en) * 2004-12-30 2008-12-31 Doosan Infracore Co., Ltd. Fluid pump control system for excavators
DE602006006676D1 (de) * 2006-09-01 2009-06-18 Parker Hannifin Ab Ventilanordnung
GB0722669D0 (en) * 2007-11-20 2007-12-27 Goodrich Control Sys Ltd Fuel staging system
CN101851940B (zh) * 2010-05-12 2012-01-11 三一重机有限公司 挖掘机的液压控制管路
EP2461045B1 (de) * 2010-12-01 2013-03-27 FESTO AG & Co. KG Ventilanordnung
JP5849023B2 (ja) * 2012-06-19 2016-01-27 株式会社クボタ 作業機
KR101719384B1 (ko) 2012-09-13 2017-03-24 (주) 한주반도체 노즐유닛
EP2790072A1 (de) 2013-04-11 2014-10-15 Siemens Aktiengesellschaft Hydraulikanordnung mit entkoppeltem Betrieb zweier Ventileinrichtungen
KR20160040715A (ko) * 2013-08-22 2016-04-14 얀마 가부시키가이샤 작업 차량
JP6262054B2 (ja) * 2014-03-28 2018-01-17 株式会社クボタ 作業機の油圧システム
US10161112B2 (en) * 2015-05-22 2018-12-25 Philip Paull Valve systems and method for enhanced grading control
DE102015121719A1 (de) * 2015-12-14 2017-06-14 Abb Schweiz Ag Ventilanordnung zur hydraulischen Ansteuerung einer Kolben-Zylinderanordnung eines Hoch- oder Mittelspannungsleistungsschalters
JP6940447B2 (ja) * 2018-03-28 2021-09-29 株式会社日立建機ティエラ 建設機械の油圧駆動装置
CN109630491B (zh) * 2018-12-26 2021-01-08 太原理工大学 一种电控补偿二通比例流量阀
CN116201781B (zh) * 2023-03-03 2026-01-06 徐州重型机械有限公司 液压系统、工程机械和压力补偿阀
CN119062904B (zh) * 2024-11-05 2025-01-24 成都航天万欣科技有限公司 无人机气动弹射供气系统及供气控制方法
CN119987470B (zh) * 2025-04-15 2025-08-01 湖南勋辉科技有限公司 一种立式制氧机氧气输送智能控制系统

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565242A (en) * 1945-06-18 1951-08-21 Vickers Inc Flow-control circuit
US3340897A (en) * 1965-05-07 1967-09-12 Ohio Brass Co Fluid control mechanism
JPS5032378A (enExample) * 1973-07-24 1975-03-29
US4383412A (en) * 1979-10-17 1983-05-17 Cross Manufacturing, Inc. Multiple pump load sensing system
US4362018A (en) * 1980-06-12 1982-12-07 Kobe Steel, Ltd. Hydraulic rotation control circuit
DE3044144A1 (de) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden Hydrostatisches antriebssystem mit einer einstellbaren pumpe und mehreren verbrauchern
SE439342C (sv) * 1981-09-28 1996-11-18 Bo Reiner Andersson Ventilanordning för styrning av en linjär eller roterande hydraulmotor
US4437385A (en) * 1982-04-01 1984-03-20 Deere & Company Electrohydraulic valve system
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
KR910009257B1 (ko) * 1985-09-07 1991-11-07 히다찌 겡끼 가부시기가이샤 유압건설기계의 제어시스템
CN1010794B (zh) * 1986-01-11 1990-12-12 日立建机株式会社 液压泵输入功率控制系统
DE3764824D1 (de) * 1986-01-25 1990-10-18 Hitachi Construction Machinery Hydraulisches antriebssystem.
JPH0349286Y2 (enExample) * 1986-09-01 1991-10-22
IT1195178B (it) * 1986-09-24 1988-10-12 Chs Vickers Spa Sistema di recupero di portata per circuiti idraulici con pompe e di stributori compensati in pressione per organi di lavoro di macchine movimento terra
US4712376A (en) * 1986-10-22 1987-12-15 Caterpillar Inc. Proportional valve control apparatus for fluid systems
JPH05131A (ja) * 1991-01-09 1993-01-08 Nec Corp ユーザー個別の心電図診断解析システム

Also Published As

Publication number Publication date
EP0297682B1 (en) 1992-12-09
EP0297682A2 (en) 1989-01-04
KR890000799A (ko) 1989-03-16
AU603907B2 (en) 1990-11-29
US4945723A (en) 1990-08-07
IN171522B (enExample) 1992-11-07
EP0297682A3 (en) 1989-04-12
DE3876518T2 (de) 1993-05-06
CN1031270A (zh) 1989-02-22
DE3876518D1 (de) 1993-01-21
KR920007653B1 (en) 1992-09-14
AU1842688A (en) 1989-01-05

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Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
PB01 Publication
SE01 Entry into force of request for substantive examination
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
C17 Cessation of patent right
CX01 Expiry of patent term