JP7373406B2 - 油圧回路および建設機械 - Google Patents

油圧回路および建設機械 Download PDF

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Publication number
JP7373406B2
JP7373406B2 JP2020001488A JP2020001488A JP7373406B2 JP 7373406 B2 JP7373406 B2 JP 7373406B2 JP 2020001488 A JP2020001488 A JP 2020001488A JP 2020001488 A JP2020001488 A JP 2020001488A JP 7373406 B2 JP7373406 B2 JP 7373406B2
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JP
Japan
Prior art keywords
oil
actuator
pump
valve
supplied
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.)
Active
Application number
JP2020001488A
Other languages
English (en)
Japanese (ja)
Other versions
JP2021110361A (ja
Inventor
泰輔 岡田
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.)
Nabtesco Corp
Original Assignee
Nabtesco Corp
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 Nabtesco Corp filed Critical Nabtesco Corp
Priority to JP2020001488A priority Critical patent/JP7373406B2/ja
Priority to KR1020210000676A priority patent/KR20210089582A/ko
Priority to CN202110021727.8A priority patent/CN113089758B/zh
Publication of JP2021110361A publication Critical patent/JP2021110361A/ja
Application granted granted Critical
Publication of JP7373406B2 publication Critical patent/JP7373406B2/ja
Active 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
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more 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
    • 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
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
JP2020001488A 2020-01-08 2020-01-08 油圧回路および建設機械 Active JP7373406B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020001488A JP7373406B2 (ja) 2020-01-08 2020-01-08 油圧回路および建設機械
KR1020210000676A KR20210089582A (ko) 2020-01-08 2021-01-05 유압 회로 및 건설 기계
CN202110021727.8A CN113089758B (zh) 2020-01-08 2021-01-08 液压回路和施工机械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020001488A JP7373406B2 (ja) 2020-01-08 2020-01-08 油圧回路および建設機械

Publications (2)

Publication Number Publication Date
JP2021110361A JP2021110361A (ja) 2021-08-02
JP7373406B2 true JP7373406B2 (ja) 2023-11-02

Family

ID=76664152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020001488A Active JP7373406B2 (ja) 2020-01-08 2020-01-08 油圧回路および建設機械

Country Status (3)

Country Link
JP (1) JP7373406B2 (zh)
KR (1) KR20210089582A (zh)
CN (1) CN113089758B (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004278241A (ja) 2003-03-18 2004-10-07 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 建設機械の油圧回路

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49137724U (zh) * 1973-03-23 1974-11-27
JP5424668B2 (ja) * 2009-02-18 2014-02-26 Ｉｈｉ建機株式会社 建設機械の油圧回路
JP6124045B2 (ja) * 2012-11-06 2017-05-10 武田レッグウェアー株式会社 くつ下およびくつ下の製造方法
JP6196499B2 (ja) * 2013-08-20 2017-09-13 ナブテスコ株式会社 建設機械の多連方向切換弁
JP6196567B2 (ja) * 2014-03-06 2017-09-13 川崎重工業株式会社 建設機械の油圧駆動システム
JP6324825B2 (ja) * 2014-07-03 2018-05-16 ナブテスコ株式会社 建設機械用油圧回路
JP6555709B2 (ja) * 2015-04-17 2019-08-07 キャタピラー エス エー アール エル 流体圧回路および作業機械
JP6639130B2 (ja) * 2015-07-15 2020-02-05 ナブテスコ株式会社 建設機械用油圧回路および建設機械
JP6506146B2 (ja) * 2015-09-14 2019-04-24 株式会社神戸製鋼所 作業機械の油圧駆動装置
WO2018084332A1 (ko) * 2016-11-02 2018-05-11 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 유압 제어 시스템
JP6755814B2 (ja) * 2017-02-09 2020-09-16 ナブテスコ株式会社 方向切換弁
JP6873726B2 (ja) * 2017-02-09 2021-05-19 ナブテスコ株式会社 油圧システム
JP3211514U (ja) * 2017-05-08 2017-07-20 ハンス株式会社 フットカバー

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004278241A (ja) 2003-03-18 2004-10-07 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 建設機械の油圧回路

Also Published As

Publication number Publication date
CN113089758B (zh) 2024-05-17
JP2021110361A (ja) 2021-08-02
CN113089758A (zh) 2021-07-09
KR20210089582A (ko) 2021-07-16

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