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JP2017072171A - 建設機械 - Google Patents

建設機械 Download PDF

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Publication number
JP2017072171A
JP2017072171A JP2015198413A JP2015198413A JP2017072171A JP 2017072171 A JP2017072171 A JP 2017072171A JP 2015198413 A JP2015198413 A JP 2015198413A JP 2015198413 A JP2015198413 A JP 2015198413A JP 2017072171 A JP2017072171 A JP 2017072171A
Authority
JP
Japan
Prior art keywords
boom
pressure
variable throttle
control valve
oil chamber
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
JP2015198413A
Other languages
English (en)
Japanese (ja)
Inventor
頼人 清水
Yorito Shimizu
頼人 清水
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
Priority to JP2015198413A priority Critical patent/JP2017072171A/ja
Priority to PCT/JP2016/076165 priority patent/WO2017061220A1/fr
Publication of JP2017072171A publication Critical patent/JP2017072171A/ja
Pending 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
    • 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
    • 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
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • 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
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP2015198413A 2015-10-06 2015-10-06 建設機械 Pending JP2017072171A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015198413A JP2017072171A (ja) 2015-10-06 2015-10-06 建設機械
PCT/JP2016/076165 WO2017061220A1 (fr) 2015-10-06 2016-09-06 Machines de construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015198413A JP2017072171A (ja) 2015-10-06 2015-10-06 建設機械

Publications (1)

Publication Number Publication Date
JP2017072171A true JP2017072171A (ja) 2017-04-13

Family

ID=58487500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015198413A Pending JP2017072171A (ja) 2015-10-06 2015-10-06 建設機械

Country Status (2)

Country Link
JP (1) JP2017072171A (fr)
WO (1) WO2017061220A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019183980A (ja) * 2018-04-11 2019-10-24 株式会社加藤製作所 建設機械の油圧回路
JP2020094643A (ja) * 2018-12-13 2020-06-18 キャタピラー エス エー アール エル 建設機械の油圧制御回路
JP2020526713A (ja) * 2017-07-14 2020-08-31 ノルトハイドローリック アクティエボラーグ 動的オープンセンタ液圧システム制御

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6738782B2 (ja) * 2017-09-14 2020-08-12 日立建機株式会社 建設機械の駆動装置
JP7305968B2 (ja) 2019-01-28 2023-07-11 コベルコ建機株式会社 作業機械における油圧シリンダの駆動装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006292068A (ja) * 2005-04-11 2006-10-26 Hitachi Constr Mach Co Ltd 油圧作業機
JP2011127727A (ja) * 2009-12-21 2011-06-30 Sumitomo (Shi) Construction Machinery Co Ltd 建設機械の油圧回路
KR102107579B1 (ko) * 2012-11-07 2020-05-07 히다찌 겐끼 가부시키가이샤 건설 기계의 유압 구동 장치

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020526713A (ja) * 2017-07-14 2020-08-31 ノルトハイドローリック アクティエボラーグ 動的オープンセンタ液圧システム制御
JP2019183980A (ja) * 2018-04-11 2019-10-24 株式会社加藤製作所 建設機械の油圧回路
JP2020094643A (ja) * 2018-12-13 2020-06-18 キャタピラー エス エー アール エル 建設機械の油圧制御回路
CN113302403A (zh) * 2018-12-13 2021-08-24 卡特彼勒Sarl 用于工程机器的液压控制回路
JP7208701B2 (ja) 2018-12-13 2023-01-19 キャタピラー エス エー アール エル 建設機械の油圧制御回路
US11566640B2 (en) 2018-12-13 2023-01-31 Caterpillar Sarl Hydraulic control circuit for a construction machine
CN113302403B (zh) * 2018-12-13 2024-10-01 卡特彼勒Sarl 用于工程机器的液压控制回路

Also Published As

Publication number Publication date
WO2017061220A1 (fr) 2017-04-13

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