KR950006160A - Automatic boosting method and apparatus of construction heavy equipment - Google Patents

Automatic boosting method and apparatus of construction heavy equipment Download PDF

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Publication number
KR950006160A
KR950006160A KR1019930016686A KR930016686A KR950006160A KR 950006160 A KR950006160 A KR 950006160A KR 1019930016686 A KR1019930016686 A KR 1019930016686A KR 930016686 A KR930016686 A KR 930016686A KR 950006160 A KR950006160 A KR 950006160A
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KR
South Korea
Prior art keywords
pressure
signal
controller
stage
equipment
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KR1019930016686A
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Korean (ko)
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KR970009527B1 (en
Inventor
김관수
Original Assignee
김형벽
현대중장비산업 주식회사
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Priority to KR1019930016686A priority Critical patent/KR970009527B1/en
Publication of KR950006160A publication Critical patent/KR950006160A/en
Application granted granted Critical
Publication of KR970009527B1 publication Critical patent/KR970009527B1/en

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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
    • E02F9/2221—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
    • E02F9/2264—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
    • E02F9/2285—Pilot-operated systems

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  • 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)

Abstract

장비의 굴삭업 또는 고르기 작업시에 암석이나 나무뿌리 등에 의한 작업장애가 발생할 경우 장비가 스스로 판단하여 장애물을 제거할 수 있도록 자동적으로 처리함으로써 작업의 편의를 도모하고 작업능률을 향상시킬 수 있게 한 것으로서 건설중장비인 굴삭기에 있어서, 어테치먼트가 달려 있고, 작업시 주 펌프 토출압력을 측정하는 주관로(m)상의 압력센서(c1)(c2)와 작동레버의 암컬 작업시 그때의 파이롯트 압력 감지기구로서 압력스위치(d)가 장착되어 있고 이 압력감지신호를 받아 연산후 제어신호를 출력하는 컨트롤러(k)와 이 컨트롤러(k)의 전기적 신호에 의해서 출력 조절 가능하고 쓰로틀 레버(f)와 가버너모터(g)가 장치된 엔진(i) 및 전자 비례 감압밸브(e)가 설치된 펌프가 있으며, 작동기에 걸리는 압력을 2단으로 할 수 있는 2단 릴리프밸브(a1)(a2), 그리고 파이롯트 압력에 의해 2단 릴리프밸브(a1)(a2)를 구동시킬 수 있는 솔레노이드밸브(b)가 장착된 것을 특징으로 하는 건설중장비의 자동 승압방법과 장치.When working obstacles caused by rocks or tree roots occur during the excavation or picking of equipment, the equipment automatically judges itself and removes obstacles. As a heavy-duty excavator, it has an attachment, and it is a pilot pressure sensor tool at the time of the female work of the pressure sensor (c1) (c2) on the main pipe line (m) which measures the main pump discharge pressure during operation and the actuating lever. The controller is equipped with a pressure switch (d), which receives the pressure sensing signal and outputs a control signal after operation, and the output is adjustable by the electrical signal of the controller (k). The throttle lever (f) and the governor motor There is a pump equipped with an engine (i) equipped with (g) and an electromagnetic proportional pressure reducing valve (e), and a two-stage relief valve (a1) capable of making the pressure applied to the actuator two-stage ( and a solenoid valve (b) capable of driving a two-stage relief valve (a1) (a2) by a pilot pressure.

Description

건설중장비의 자동승압방법과 장치Automatic boosting method and device of construction equipment

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명 장치의 최근 구성도.1 is a recent configuration diagram of the device of the present invention.

제2도는 본 발명에 사용되는 컨트롤러의 블럭다이어그램.2 is a block diagram of a controller used in the present invention.

Claims (4)

건설중장비인 굴삭기에 있어서, 어태치먼트가 달려있고, 작업시 주펌프 토출압력을 측정하는 주관로(m)상의 압력센서(c1)(c2)와 작동레버의 암컬 작업시 그때의 파이롯트 압력 감지기구로서 압력스위치(d)가 장착되어 있고 이 압력감지신호를 받아 연산후 제어신호를 출력하는 컨트롤러(k)와 이 컨트롤러(k)의 전기적 신호에 의해서 출력 조절 가능하고 쓰로틀 레버(f)와 가버너 모터(g)가 장치된 엔진(i) 및 전자 비례 감압밸브(e)가 설치된 펌프가 있으며, 작동기에 걸리는 압력을 2단으로 할 수 있는 2단 릴리프밸브(a1),(a2), 그리고 파이롯트 압력에 의해 2단 릴리프밸브(a1),(a2)를 구동시킬 수 있는 솔레노이드밸브(b)가 장착된 것을 특징으로 하는 건설중장비의 자동 승압장치.In the excavator under construction, the attachment is attached, and the pressure sensor (c1) (c2) on the main line (m) to measure the discharge pressure of the main pump during the operation, and the pressure as the pilot pressure sensor at the time of the arm work of the operating lever. The controller (k) is equipped with a switch (d) and receives the pressure sensing signal and outputs a control signal after the calculation, and the output is adjustable by the electrical signal of the controller (k) and the throttle lever (f) and the governor motor ( There is a pump equipped with an engine (i) equipped with g) and an electromagnetic proportional pressure reducing valve (e), and two-stage relief valves (a1), (a2) and pilot pressure that can make the pressure applied to the actuator two-stage. And a solenoid valve (b) capable of driving two-stage relief valves (a1) and (a2) by means of an automatic boosting device for heavy construction equipment. 건설중장비인 굴삭기에 있어서, 굴삭 또는 고르기 작업시의 그 작업모드신호와 암컬 작업신호 그리고 장비의 작업시 장애물 등에 의해 작동기내의 압력이 주관로(m) 압력감지기구에 의해 1단 릴리프압으로 일정 설정 시간동안 유지될 경우의 입력신호 조건에서, 그 신호들을 컨트롤러(k) 명령에 의해서 자동적으로 일정시간의 범위내에서 솔레노이드밸브(b)를 작동시켜 2단 릴리프 압력까지 승압시킴과 동시에 엔진출력마력과 펌프 토출량을 최대로 유지시키고, 이 작업에 의해 장애물이 제거되고 난 후에는 주관로(m)내의 압력이 하강하므로 이 하강하는 압력신호를 컨트롤러(k)가 인식하여 승압이 자동적으로 해제되고, 컨트롤러(k) 기억수단에 의해 이전 작업상태로 자동 복귀시킴을 특징으로 하는 건설중장비의 자동 승압방법.In the excavator under construction, the pressure in the actuator is fixed to the first stage relief pressure by the main pipeline pressure sensing mechanism due to the work mode signal, the falcon work signal during the excavation or picking operation, and the obstacle during operation of the equipment. Under the condition of the input signal when it is maintained for the set time, the signals are automatically operated by the controller (k) command to operate the solenoid valve (b) within a certain time range to boost the pressure to the second stage relief pressure and at the same time the engine output horsepower. And the pump discharge amount is kept to the maximum, and after the obstacle is removed by this operation, the pressure in the main pipe (m) falls, so that the controller (k) recognizes this falling pressure signal, and the boosting pressure is automatically released. An automatic boosting method for heavy construction equipment, characterized by automatically returning to a previous working state by a controller (k) storage means. 제2항에 있어서, 작업기의 자동 승압시간이 설정시단 이상 초과하면 자동 승압기능이 해제되어 이전상태로 돌아가며, 암컬 시의 압력감지신호가 해제된 후 다시 위의 청구범위 1의 조건이 될 경우 자동 승압기능으로 복귀함을 특징으로 하는 건설중장비의 자동 승압방법.According to claim 2, If the automatic boosting time of the working machine exceeds the set time limit, the automatic boosting function is released and returns to the previous state, and if the pressure detection signal at the time of releasing is released and the condition of claim 1 above is automatically Automatic boosting method of heavy equipment, characterized in that to return to the boosting function. 제2항에 있어서, 작동레버로서 전기 조이스틱을 사용할 경우 암컬 신호가 다른 작업조작레버와 구별될 수 있게 함을 특징으로 하는 건설중장비의 자동승압방법.The method of claim 2, wherein when using an electric joystick as an actuating lever, a female signal can be distinguished from other work operating levers. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930016686A 1993-08-26 1993-08-26 Method for automatically lifting up oil pressure in the excavator KR970009527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930016686A KR970009527B1 (en) 1993-08-26 1993-08-26 Method for automatically lifting up oil pressure in the excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930016686A KR970009527B1 (en) 1993-08-26 1993-08-26 Method for automatically lifting up oil pressure in the excavator

Publications (2)

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KR950006160A true KR950006160A (en) 1995-03-20
KR970009527B1 KR970009527B1 (en) 1997-06-14

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KR1019930016686A KR970009527B1 (en) 1993-08-26 1993-08-26 Method for automatically lifting up oil pressure in the excavator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100433186B1 (en) * 2001-07-27 2004-05-27 현대중공업 주식회사 Control system of an engine and pump output for Excavator
KR100426877B1 (en) * 1998-08-25 2004-06-12 현대중공업 주식회사 Power Control Method of Excavator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100426877B1 (en) * 1998-08-25 2004-06-12 현대중공업 주식회사 Power Control Method of Excavator
KR100433186B1 (en) * 2001-07-27 2004-05-27 현대중공업 주식회사 Control system of an engine and pump output for Excavator

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Publication number Publication date
KR970009527B1 (en) 1997-06-14

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