CN1170831A - 动力装载机的液压*** - Google Patents

动力装载机的液压*** Download PDF

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Publication number
CN1170831A
CN1170831A CN97112245A CN97112245A CN1170831A CN 1170831 A CN1170831 A CN 1170831A CN 97112245 A CN97112245 A CN 97112245A CN 97112245 A CN97112245 A CN 97112245A CN 1170831 A CN1170831 A CN 1170831A
Authority
CN
China
Prior art keywords
branch
oil
pump
oil circuit
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.)
Pending
Application number
CN97112245A
Other languages
English (en)
Chinese (zh)
Inventor
阿罗土利池利
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.)
Samsung Heavy Industries Co Ltd
Original Assignee
Samsung Heavy Industries 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 Samsung Heavy Industries Co Ltd filed Critical Samsung Heavy Industries Co Ltd
Publication of CN1170831A publication Critical patent/CN1170831A/zh
Pending legal-status Critical Current

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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
    • 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"
    • 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
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2282—Systems using center bypass type changeover 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
    • E02F9/2285—Pilot-operated systems

Landscapes

  • 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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
CN97112245A 1996-07-10 1997-07-10 动力装载机的液压*** Pending CN1170831A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR27837/96 1996-07-10
KR1019960027837A KR100205568B1 (ko) 1996-07-10 1996-07-10 로우더의 유압장치

Publications (1)

Publication Number Publication Date
CN1170831A true CN1170831A (zh) 1998-01-21

Family

ID=19465927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97112245A Pending CN1170831A (zh) 1996-07-10 1997-07-10 动力装载机的液压***

Country Status (5)

Country Link
JP (1) JPH1082368A (ja)
KR (1) KR100205568B1 (ja)
CN (1) CN1170831A (ja)
DE (1) DE19729167A1 (ja)
GB (1) GB2315102A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100378343C (zh) * 2003-03-17 2008-04-02 日立建机株式会社 工作机的液压回路
CN102635144A (zh) * 2012-05-04 2012-08-15 山东理工大学 装载机液压***

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008015729A1 (de) * 2007-12-28 2009-07-02 Robert Bosch Gmbh Regeneratives hydrostatisches Antriebssystem
JP5714703B2 (ja) * 2010-06-30 2015-05-07 ボルボ コンストラクション イクイップメント アーベー 建設機械の油圧ポンプ制御装置
CN102384115A (zh) * 2011-11-14 2012-03-21 上海电气液压气动有限公司 书籍压槽液压装置
CN103206421B (zh) * 2013-04-16 2015-08-12 三一重机有限公司 装载机及其液压***
US11280357B1 (en) * 2018-12-26 2022-03-22 Linde Hydraulics (China) Co., Ltd. Hydraulic variable pump set and excavator
CN113757203B (zh) * 2021-09-13 2022-04-15 徐工集团工程机械股份有限公司科技分公司 一种装载机电控液压***及装载机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1311188A (en) * 1970-06-18 1973-03-21 Wilkins B C Hydrostatic power transmission system
US3754400A (en) * 1972-04-20 1973-08-28 Deere & Co Variable pressure hydraulic system
FR2259256B1 (ja) * 1974-01-24 1977-06-10 Yumbo
DE3817218A1 (de) * 1987-06-11 1988-12-22 Mannesmann Ag Hydraulisches steuersystem fuer einen hydraulikbagger
JPH04210101A (ja) * 1990-11-30 1992-07-31 Komatsu Ltd 油圧回路
WO1993021395A1 (en) * 1992-04-20 1993-10-28 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit device for construction machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100378343C (zh) * 2003-03-17 2008-04-02 日立建机株式会社 工作机的液压回路
CN102635144A (zh) * 2012-05-04 2012-08-15 山东理工大学 装载机液压***
CN102635144B (zh) * 2012-05-04 2014-06-11 山东理工大学 装载机液压***

Also Published As

Publication number Publication date
JPH1082368A (ja) 1998-03-31
DE19729167A1 (de) 1998-01-15
KR980009964A (ko) 1998-04-30
GB9714578D0 (en) 1997-09-17
KR100205568B1 (ko) 1999-07-01
GB2315102A (en) 1998-01-21

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication