KR900012312U - 굴삭기의 어태치먼트 구동 유압회로 - Google Patents

굴삭기의 어태치먼트 구동 유압회로

Info

Publication number
KR900012312U
KR900012312U KR2019880021971U KR880021971U KR900012312U KR 900012312 U KR900012312 U KR 900012312U KR 2019880021971 U KR2019880021971 U KR 2019880021971U KR 880021971 U KR880021971 U KR 880021971U KR 900012312 U KR900012312 U KR 900012312U
Authority
KR
South Korea
Prior art keywords
excavator
hydraulic circuit
circuit driving
driving attachment
attachment
Prior art date
Application number
KR2019880021971U
Other languages
English (en)
Other versions
KR920004538Y1 (ko
Inventor
박종호
김진국
Original Assignee
대우중공업 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 대우중공업 주식회사 filed Critical 대우중공업 주식회사
Priority to KR2019880021971U priority Critical patent/KR920004538Y1/ko
Publication of KR900012312U publication Critical patent/KR900012312U/ko
Application granted granted Critical
Publication of KR920004538Y1 publication Critical patent/KR920004538Y1/ko

Links

Classifications

    • 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
    • E02F3/425—Drive systems 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
    • E02F9/2282—Systems using center bypass type changeover valves
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
KR2019880021971U 1988-12-29 1988-12-29 굴삭기의 어태치먼트 구동 유압회로 KR920004538Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880021971U KR920004538Y1 (ko) 1988-12-29 1988-12-29 굴삭기의 어태치먼트 구동 유압회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880021971U KR920004538Y1 (ko) 1988-12-29 1988-12-29 굴삭기의 어태치먼트 구동 유압회로

Publications (2)

Publication Number Publication Date
KR900012312U true KR900012312U (ko) 1990-07-03
KR920004538Y1 KR920004538Y1 (ko) 1992-07-03

Family

ID=19282710

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880021971U KR920004538Y1 (ko) 1988-12-29 1988-12-29 굴삭기의 어태치먼트 구동 유압회로

Country Status (1)

Country Link
KR (1) KR920004538Y1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102529298B1 (ko) 2021-01-28 2023-05-08 (주)에스앤지코리아 피난로 안내 시스템

Also Published As

Publication number Publication date
KR920004538Y1 (ko) 1992-07-03

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee