KR910700415A - 유압제어장치 - Google Patents

유압제어장치

Info

Publication number
KR910700415A
KR910700415A KR1019900701732A KR900701732A KR910700415A KR 910700415 A KR910700415 A KR 910700415A KR 1019900701732 A KR1019900701732 A KR 1019900701732A KR 900701732 A KR900701732 A KR 900701732A KR 910700415 A KR910700415 A KR 910700415A
Authority
KR
South Korea
Prior art keywords
opening degree
degree characteristic
characteristic
hydraulic control
hydraulic
Prior art date
Application number
KR1019900701732A
Other languages
English (en)
Inventor
사다오 누노타니
토시로 다까노
나오끼 이시자끼
Original Assignee
가따다 데쯔야
가부시끼가이샤 고마쯔 세이사꾸쇼
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 가따다 데쯔야, 가부시끼가이샤 고마쯔 세이사꾸쇼 filed Critical 가따다 데쯔야
Publication of KR910700415A publication Critical patent/KR910700415A/ko

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
    • F15B11/0423—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling pump output or bypass, other than to maintain constant speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/634—Electronic controllers using input signals representing a state of a valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6654—Flow rate control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7052—Single-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

내용 없음.

Description

유압제어장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관한 유압제어장치의 유압회로의 한 예를 나타낸 회로도.
제2도는 유량제어용 전자밸브를 제어하는 장치를 개념적으로 나타낸 블록도.
제3도는 유량제어용 전자밸브를 제어하기 위한 열리는 정도 특성을 예시한 그래프.

Claims (5)

  1. 유압펌프와 복수의 유압액튜에이터 사이에 이들 유압액튜에이터로의 공급유량을 제어하는 별도의 조작밸브를 개재시킨 유압 제어장치에 있어서, 상기 유압펌프에 병렬접속한 유량제어용 전자밸브와, 상기 각 조작밸브의 단독조작시에 각각 적용하는 별도의 단독 조작용 열리는 정도 특성과 상기 각 조작밸브의 복합 조작시에 적용하는 복합 조작용 열리는 정도 특성을 상기 전자밸브의 열리는 정도 특성으로 미리 설정하는 열리는 정도 특성 설정장치와, 상기 각 조작밸브의 조작량을 각각 검출하는 조작검출장치와, 상기 조작량 검출장치의 검출결과에 따라 상기 각 조작밸브내의 어느 것이 단독으로 조작되어 있는 경우에는 그 조작밸브의 조작시에 적용하는 상기 단독 조작용 열리는 정도 특성에 따라 상기 전자밸브의 열리는 정도를 제어하고, 상기 각 조작밸브가 복합적으로 조작되어 있는 경우에는 상기 복합 조작용 열리는 정도 특성에 따라 상기 전자밸브의 열리는 정도를 제어하는 제어장치를 구비하고 있는 것을 특징으로 하는 유압제어장치.
  2. 제1항에 있어서, 상기 각 단독 조작용 열리는 정도 특성 및 복합 조작용 열리는 정도 특성은 각각 상기 각 조작밸브의 조작량의 증가에 따라 상기 전자밸브의 열리는 정도를 감소시키도록 설정된 것을 특징으로 하는 유압제어장치.
  3. 제1항에 있어서,상기 각 단독 조작용 열리는 정도 특성은 상기 각 유압액튜에이터에 작용하는 부하의 크기에 따라 설정되는 것을 특징으로 하는 유압제어장치.
  4. 제1항에 있어서, 상기 복합조작용 열리는 정도 특성은 이 특성에 따른 열리는 정도가 상기 각 단독 조작용 열리는 정도 특성에 따른 열리는 정도보다도 낮게 설정된 것을 특징으로 하는 유압 제어장치.
  5. 제1항에 있어서, 상기 복합 조작용 열리는 정도 특성으로 상기 각 단독 조작용 열리는 정도 특성내의 열리는 정도량이 가장 적은 열리는 정도 특성을 적용한 것을 특징으로 하는 유압 제어장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900701732A 1988-12-27 1989-12-27 유압제어장치 KR910700415A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1988167789U JPH0288005U (ko) 1988-12-27 1988-12-27
JP???63-167789 1988-12-27
PCT/JP1989/001309 WO1990007651A1 (en) 1988-12-27 1989-12-27 Hydraulic controller

Publications (1)

Publication Number Publication Date
KR910700415A true KR910700415A (ko) 1991-03-15

Family

ID=15856144

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900701732A KR910700415A (ko) 1988-12-27 1989-12-27 유압제어장치

Country Status (4)

Country Link
EP (1) EP0451274A4 (ko)
JP (1) JPH0288005U (ko)
KR (1) KR910700415A (ko)
WO (1) WO1990007651A1 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5468126A (en) * 1993-12-23 1995-11-21 Caterpillar Inc. Hydraulic power control system
US5525043A (en) * 1993-12-23 1996-06-11 Caterpillar Inc. Hydraulic power control system
US5701933A (en) * 1996-06-27 1997-12-30 Caterpillar Inc. Hydraulic control system having a bypass valve
JP4532725B2 (ja) * 2000-12-11 2010-08-25 ヤンマー株式会社 掘削旋回作業車のブーム用方向切換弁
JP4585607B2 (ja) * 2009-12-25 2010-11-24 ヤンマー株式会社 作業車の方向切換弁
WO2012121427A1 (ko) * 2011-03-07 2012-09-13 볼보 컨스트럭션 이큅먼트 에이비 파이프 레이어용 유압회로
CN103032393A (zh) * 2012-12-14 2013-04-10 长春新试验机有限责任公司 一种准静态加载液压泵伺服控制装置
JP6726127B2 (ja) * 2017-03-30 2020-07-22 川崎重工業株式会社 油圧システム
EP3652444B1 (en) * 2017-07-14 2021-09-29 Nordhydraulic AB Dynamic open center hydraulic system control
JP7418278B2 (ja) 2020-04-30 2024-01-19 キャタピラー エス エー アール エル 油圧制御回路
SI26379A (sl) * 2022-07-13 2024-01-31 Tajfun Liv, Proizvodnja In Razvoj D.O.O. Hidravlični tokokrog mobilnega hidravličnega dvigala
CN115875447A (zh) * 2023-01-09 2023-03-31 索特传动设备有限公司 一种液压控制系统、换挡机构及工程机械

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DE1807173A1 (de) * 1968-11-06 1970-06-18 Bosch Gmbh Robert Einrichtung zur elektrohydraulischen Fernsteuerung hydraulischer Wegeventile
JPS50117296U (ko) * 1974-03-08 1975-09-25
DE2630468A1 (de) * 1976-07-07 1978-01-12 Bosch Gmbh Robert Hydraulisches steuersystem fuer wenigstens zwei verbraucher
DE2952963C1 (de) * 1978-07-13 1984-04-12 Unic Corp., Tokyo Fernsteuerung fuer einen hydraulisch betriebenen Kran
JPS5985765U (ja) * 1982-12-02 1984-06-09 内田油圧機器工業株式会社 テ−ルゲ−トリフタ−用油圧回路装置
JPS622805U (ko) * 1985-06-20 1987-01-09
EP0235545B1 (en) * 1986-01-25 1990-09-12 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system

Also Published As

Publication number Publication date
WO1990007651A1 (en) 1990-07-12
EP0451274A4 (en) 1991-11-13
EP0451274A1 (en) 1991-10-16
JPH0288005U (ko) 1990-07-12

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