KR870007372A - 유압 제어장치 - Google Patents

유압 제어장치 Download PDF

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Publication number
KR870007372A
KR870007372A KR870000735A KR870000735A KR870007372A KR 870007372 A KR870007372 A KR 870007372A KR 870000735 A KR870000735 A KR 870000735A KR 870000735 A KR870000735 A KR 870000735A KR 870007372 A KR870007372 A KR 870007372A
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KR
South Korea
Prior art keywords
pilot
valve
flow control
output port
throttle
Prior art date
Application number
KR870000735A
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English (en)
Other versions
KR940008824B1 (ko
Inventor
카즈오 우에하라
타다오 가라까마
사다오 누노타니
나오끼 이시자끼
마사유끼 타나아미
Original Assignee
노가와 쇼지
가부시끼 가이샤 고마쓰 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
Priority claimed from JP61135011A external-priority patent/JP2561819B2/ja
Priority claimed from JP61230029A external-priority patent/JPS62270804A/ja
Application filed by 노가와 쇼지, 가부시끼 가이샤 고마쓰 세이사꾸쇼 filed Critical 노가와 쇼지
Publication of KR870007372A publication Critical patent/KR870007372A/ko
Application granted granted Critical
Publication of KR940008824B1 publication Critical patent/KR940008824B1/ko

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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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
    • 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
    • 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
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant 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
    • F15B2211/405—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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • 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
    • F15B2211/41572—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and an output member
    • 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
    • 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
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/67—Methods for controlling pilot pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Check Valves (AREA)

Abstract

내용 없음

Description

유압 제어장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제6도는 본 발명의 유압 제어장치를 개략적으로 나타낸 것으로서, 특히 그 장치에 있어서의 유량 제어밸브를 단면으로 나타내고 있다.
제7도는 본 발명의 그밖의 유압 제어장치를 개략적으로 나타낸 것으로서, 특히 그 장치에 있어서의 유량제어밸브를 단면으로 나타내고 있다.
제8도는 본 발명의 또 다른 유압제어장치를 개략적으로 나타낸 것으로서, 그 장치에 있어서의 유량 제어밸브를 단면으로 나타내고 있다.
* 도면의 주요부분에 대한 부호의 설명
10 : 파이롯트 밸브 20 : 유량 제어밸브 21,51,71,122:케 이 싱
25,55,81,128 : 배부 압력실 30,57,75 : 포핏(poppet) 34 : 스풀(spool)
42,101 : 작 동 기 50,70 : 유량 제어밸브 104 : 유압 펌프
105 : 탱 크 108,115,137 : 스 프 링 120 : 첵크 밸브

Claims (6)

  1. 유량 제어밸브에 밸브체의 이동정도에 따라 개방상태를 변화시키기 위해 입력포오트에서부터 파이롯트 출력포오트까지 뻗어 있는 파이롯트 유압통로에 설치되어 있는 제1가변드로틀, 배부압력실, 파이롯트 출력포오트, 출력포오트, 입력포오트 및 밸브체가 있고, 상기 입력포오트가 파이롯트 출력포으트와 배부압력실에 통하도록 설치되어 있으며, 파이롯트 밸브에 제2가변드로틀이 있고, 유량 제어밸브의 파이롯트 출력포오트가 파이롯트 밸브를 통해 상기 유량 제어밸브의 출력 포오트에 연결되어서 밸브체의 위치를 제어하며, 유량 제어밸브에 배부 압력실 쪽으로 향한 제2파이롯트 압유 통로에 배치된 고정드로틀이 설치되어 있는 것이 특징으로 하는 유압 제어장치.
  2. 제1항에 있어서, 유량 제어밸브의 제1가변드로틀이 밸브체의 이동정도에 따라 개방 면적을 증가시키도록 되어 있고, 제2파이롯트 압유 통로가 파이롯트 출력 포오트와 배부 압력실을 연결시키며, 제1드로틀이 파이롯트 출력 포오트에 설치되어 있는 것을 특징으로 하는 장치.
  3. 제1항에 있어서, 유량 제어밸브의 제1가변드로틀이 밸브체의 이동정도에 따라 개방 면적을 감소시키도록 되어 있고, 상기 고정드로틀과 다른 또 하나의 고정드로틀이 제1파이롯트 압유 통로에 있는 제1가변드로틀의 상향 라인에 설치되어 있으며, 제2파이롯트 압유통로가 상기 다른 고정드로틀과 제1파이롯트 압유 통로에 있는 제1가변드로틀 사이의 부분과 배부 압력실을 연결시키고, 배부 압력실용 제1드로틀이 제2파이롯트 압유 통로에 설치되어 있는 것을 특징으로 하는 장치.
  4. 유량 제어밸브가 밸브체의 위치를 조절하기 위해 제1가변 드로틀을 가진 파이롯트 밸브와 밸브체를 가지고 있고, 상기 유량 제어밸브가 밸브체의 이동 상태에 따라 개방지역을 변화시키기 위해 파이롯트 입력포오트에서부터 출력포오트까지 뻗어 있는 제1파이롯트 압유통로에 설치된 제2가변드로틀, 배부압력실, 출력포오트, 파이롯트 입력포오트 및 입력포오트로 구성되어 있으며, 제2압유 통로에 설치된 고정드로틀이 파이롯트 입력 포오트에서부터 배부 압력실까지 뻗어 있고, 파이롯트 입력포오트가 출력포오트와 배부 압력실을 연결시키며, 파이롯트 밸브에 제2가변드로틀이 있고, 유량 제어밸브의 파이롯트 입력포오트가 파이롯트 밸브를 통해 상기 유량 제어밸브에 연결되어 있는 것을 특징으로 하는 유압제어장치.
  5. 제4항에 있어서, 첵크밸브가 제1가변 드로틀과 출력포오트 사이에 있는 제1파이롯트 압유 통로에 설치되어 있는 것을 특징으로 하는 장치.
  6. 제4항에 있어서, 첵크밸브가 출력포오트에 설치되어 있는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870000735A 1986-01-30 1987-01-30 유압 제어장치 KR940008824B1 (ko)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP1693486 1986-01-30
JP61-16934 1986-01-30
JP61-135011 1986-06-12
JP61135011A JP2561819B2 (ja) 1986-06-12 1986-06-12 流量制御弁
JP135011 1986-06-12
JP230029 1986-09-30
JP61-230029 1986-09-30
JP61230029A JPS62270804A (ja) 1986-01-30 1986-09-30 油圧制御装置
JP16934 1989-01-26

Publications (2)

Publication Number Publication Date
KR870007372A true KR870007372A (ko) 1987-08-18
KR940008824B1 KR940008824B1 (ko) 1994-09-26

Family

ID=68392637

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870000735A KR940008824B1 (ko) 1986-01-30 1987-01-30 유압 제어장치

Country Status (1)

Country Link
KR (1) KR940008824B1 (ko)

Also Published As

Publication number Publication date
KR940008824B1 (ko) 1994-09-26

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