KR920018190U - 굴삭기의 미세작업을 위한 유압장치 - Google Patents

굴삭기의 미세작업을 위한 유압장치

Info

Publication number
KR920018190U
KR920018190U KR2019910003842U KR910003842U KR920018190U KR 920018190 U KR920018190 U KR 920018190U KR 2019910003842 U KR2019910003842 U KR 2019910003842U KR 910003842 U KR910003842 U KR 910003842U KR 920018190 U KR920018190 U KR 920018190U
Authority
KR
South Korea
Prior art keywords
excavator
hydraulic system
fine work
fine
work
Prior art date
Application number
KR2019910003842U
Other languages
English (en)
Other versions
KR950005248Y1 (ko
Inventor
권영민
Original Assignee
현대중장비산업 주식회사
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 현대중장비산업 주식회사 filed Critical 현대중장비산업 주식회사
Priority to KR2019910003842U priority Critical patent/KR950005248Y1/ko
Publication of KR920018190U publication Critical patent/KR920018190U/ko
Application granted granted Critical
Publication of KR950005248Y1 publication Critical patent/KR950005248Y1/ko

Links

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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • 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
    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
KR2019910003842U 1991-03-22 1991-03-22 굴삭기의 미세작업을 위한 유압장치 KR950005248Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910003842U KR950005248Y1 (ko) 1991-03-22 1991-03-22 굴삭기의 미세작업을 위한 유압장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910003842U KR950005248Y1 (ko) 1991-03-22 1991-03-22 굴삭기의 미세작업을 위한 유압장치

Publications (2)

Publication Number Publication Date
KR920018190U true KR920018190U (ko) 1992-10-17
KR950005248Y1 KR950005248Y1 (ko) 1995-07-03

Family

ID=19311955

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019910003842U KR950005248Y1 (ko) 1991-03-22 1991-03-22 굴삭기의 미세작업을 위한 유압장치

Country Status (1)

Country Link
KR (1) KR950005248Y1 (ko)

Also Published As

Publication number Publication date
KR950005248Y1 (ko) 1995-07-03

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