KR900012310U - Hydraulic control device for excavator - Google Patents

Hydraulic control device for excavator

Info

Publication number
KR900012310U
KR900012310U KR2019880021921U KR880021921U KR900012310U KR 900012310 U KR900012310 U KR 900012310U KR 2019880021921 U KR2019880021921 U KR 2019880021921U KR 880021921 U KR880021921 U KR 880021921U KR 900012310 U KR900012310 U KR 900012310U
Authority
KR
South Korea
Prior art keywords
excavator
control device
hydraulic control
hydraulic
control
Prior art date
Application number
KR2019880021921U
Other languages
Korean (ko)
Other versions
KR920008658Y1 (en
Inventor
김주경
Original Assignee
삼성중공업 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 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR2019880021921U priority Critical patent/KR920008658Y1/en
Publication of KR900012310U publication Critical patent/KR900012310U/en
Application granted granted Critical
Publication of KR920008658Y1 publication Critical patent/KR920008658Y1/en

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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • 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
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
    • 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)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
KR2019880021921U 1988-12-29 1988-12-29 Oil-pressure control device of excavator KR920008658Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880021921U KR920008658Y1 (en) 1988-12-29 1988-12-29 Oil-pressure control device of excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880021921U KR920008658Y1 (en) 1988-12-29 1988-12-29 Oil-pressure control device of excavator

Publications (2)

Publication Number Publication Date
KR900012310U true KR900012310U (en) 1990-07-03
KR920008658Y1 KR920008658Y1 (en) 1992-12-12

Family

ID=19282677

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880021921U KR920008658Y1 (en) 1988-12-29 1988-12-29 Oil-pressure control device of excavator

Country Status (1)

Country Link
KR (1) KR920008658Y1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100610881B1 (en) * 2004-04-29 2006-08-11 주식회사수산중공업 An Oil Control Device of Construction Machine
KR100621976B1 (en) * 2002-04-24 2006-09-13 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 construction heavy equipment of having boom down function

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100621985B1 (en) * 2005-08-02 2006-09-11 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 System for driving
EP2955284B1 (en) * 2013-02-08 2019-05-08 Doosan Infracore Co., Ltd. Apparatus and method for controlling oil hydraulic pump for excavator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100621976B1 (en) * 2002-04-24 2006-09-13 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 construction heavy equipment of having boom down function
KR100610881B1 (en) * 2004-04-29 2006-08-11 주식회사수산중공업 An Oil Control Device of Construction Machine

Also Published As

Publication number Publication date
KR920008658Y1 (en) 1992-12-12

Similar Documents

Publication Publication Date Title
KR920701580A (en) Control device for linear excavation of hydraulic excavator
DE68909393D1 (en) Hydraulic control device for construction machines.
DE68928625D1 (en) Dredging device
ATA154789A (en) HYDRAULIC DAMPING DEVICE
DE59204690D1 (en) HYDRAULIC CONTROL DEVICE
DE68929285T2 (en) Control device
DE69117774D1 (en) HYDRAULIC LOAD-INDEPENDENT CONTROL DEVICE
DE68923934D1 (en) HYDRAULIC CONTROL UNIT FOR HYDRAULIC EXCAVATORS.
DE68906043D1 (en) HYDRAULIC SETTING DEVICE.
DK177189D0 (en) HYDROSTATIC CONTROL DEVICE
KR890012092A (en) Hydraulic system
DE59207959D1 (en) HYDRAULIC CONTROL DEVICE
FR2629848B3 (en) EXCAVATOR
KR900702150A (en) Hydraulic speed control device
KR900012310U (en) Hydraulic control device for excavator
GB2234297B (en) Load-independent control device for hydraulic devices
ATA3588A (en) HYDRAULIC CONTROL UNIT
NO171425C (en) HYDRAULIC CONTROL BLOCK
IT1202618B (en) HYDRAULIC CONTROL DEVICE
DK197690D0 (en) HYDRAULIC CONTROL UNIT
GB2222868B (en) Hydraulic control device
IT1223102B (en) HYDRAULIC CONTROL DEVICE
DE59205255D1 (en) HYDRAULIC CONTROL DEVICE
DE59405062D1 (en) Hydraulic control device
IT1178513B (en) HYDRAULIC CONTROL DEVICE

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19960311

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee