KR20210045302A - 유압 제어 장치 및 건설 기계 - Google Patents

유압 제어 장치 및 건설 기계 Download PDF

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Publication number
KR20210045302A
KR20210045302A KR1020200117637A KR20200117637A KR20210045302A KR 20210045302 A KR20210045302 A KR 20210045302A KR 1020200117637 A KR1020200117637 A KR 1020200117637A KR 20200117637 A KR20200117637 A KR 20200117637A KR 20210045302 A KR20210045302 A KR 20210045302A
Authority
KR
South Korea
Prior art keywords
pressure
hydraulic
flow path
unit
valve
Prior art date
Application number
KR1020200117637A
Other languages
English (en)
Korean (ko)
Inventor
도미오 시가키
Original Assignee
나부테스코 가부시키가이샤
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 나부테스코 가부시키가이샤 filed Critical 나부테스코 가부시키가이샤
Publication of KR20210045302A publication Critical patent/KR20210045302A/ko

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    • 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
    • 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
    • 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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
KR1020200117637A 2019-10-16 2020-09-14 유압 제어 장치 및 건설 기계 KR20210045302A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019189386A JP7332424B2 (ja) 2019-10-16 2019-10-16 油圧制御装置及び建設機械
JPJP-P-2019-189386 2019-10-16

Publications (1)

Publication Number Publication Date
KR20210045302A true KR20210045302A (ko) 2021-04-26

Family

ID=75404010

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200117637A KR20210045302A (ko) 2019-10-16 2020-09-14 유압 제어 장치 및 건설 기계

Country Status (3)

Country Link
JP (1) JP7332424B2 (zh)
KR (1) KR20210045302A (zh)
CN (1) CN112664496A (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019052702A (ja) 2017-09-15 2019-04-04 川崎重工業株式会社 建設機械の油圧駆動システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010196266A (ja) * 2009-02-23 2010-09-09 Caterpillar Japan Ltd 建設機械の油圧回路における圧力検出システム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019052702A (ja) 2017-09-15 2019-04-04 川崎重工業株式会社 建設機械の油圧駆動システム

Also Published As

Publication number Publication date
JP2021063566A (ja) 2021-04-22
CN112664496A (zh) 2021-04-16
JP7332424B2 (ja) 2023-08-23

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A201 Request for examination