JPS55152901A - Hydraulic control circuit - Google Patents

Hydraulic control circuit

Info

Publication number
JPS55152901A
JPS55152901A JP5909279A JP5909279A JPS55152901A JP S55152901 A JPS55152901 A JP S55152901A JP 5909279 A JP5909279 A JP 5909279A JP 5909279 A JP5909279 A JP 5909279A JP S55152901 A JPS55152901 A JP S55152901A
Authority
JP
Japan
Prior art keywords
valves
control
valve
hydraulic
throttle valve
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5909279A
Other languages
Japanese (ja)
Inventor
Hitoshi Hara
Kenichi Miyai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP5909279A priority Critical patent/JPS55152901A/en
Publication of JPS55152901A publication Critical patent/JPS55152901A/en
Pending legal-status Critical Current

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
    • F15B11/02—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"
    • F15B11/0426—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 the number of pumps or parallel valves switched on
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40592—Assemblies of multiple valves with multiple valves in parallel flow paths
    • 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
    • F15B2211/455—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
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • 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

Abstract

PURPOSE: To improve the responsibility of a hydraulic control circuit and provide stepless flow control with a compact and low-cost variable throttle valve, by combining stepped control using fixed throttle valves with stepless control using the variable throttle valve.
CONSTITUTION: Oil under control of a hydraulic pressure source 2 including a hydraulic pump is introduced in a hydraulic cylinder 1 through a reversing valve 3 which is connected with the hydraulic pressure source 2 through a group of fixed throttle valves A composed of fixed throttle valves 4W4" in parallel and reversing valves 5W5" connected in series with those fixed valves respectively. The valve group A is also connected with a variable throttle valve 6. The transfer speed of the hydraulic cylinder 1 is detected by a detector 7 and the signals are put in an operation unit 8 to control the variable throttle valve 6 in accordance with the deviation from a set value of a setting device 9. The reversing valves 5W5" are controlled according to the set value.
COPYRIGHT: (C)1980,JPO&Japio
JP5909279A 1979-05-16 1979-05-16 Hydraulic control circuit Pending JPS55152901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5909279A JPS55152901A (en) 1979-05-16 1979-05-16 Hydraulic control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5909279A JPS55152901A (en) 1979-05-16 1979-05-16 Hydraulic control circuit

Publications (1)

Publication Number Publication Date
JPS55152901A true JPS55152901A (en) 1980-11-28

Family

ID=13103341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5909279A Pending JPS55152901A (en) 1979-05-16 1979-05-16 Hydraulic control circuit

Country Status (1)

Country Link
JP (1) JPS55152901A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827213A (en) * 1981-08-12 1983-02-17 Matsushita Electric Works Ltd Temperature compensating circuit
JPS5831500U (en) * 1981-08-26 1983-03-01 昭和電線電纜株式会社 gas valve
JPS5865395A (en) * 1981-10-12 1983-04-19 椛山　隼夫 Stepped type variable decompression device
JPS58102805A (en) * 1981-12-10 1983-06-18 Toshiba Mach Co Ltd Closed loop speed control circuit for oil pressure actuator
JPS5937302A (en) * 1982-08-26 1984-02-29 Ube Ind Ltd Speed control method of cylinder in hydraulic system
JPS608502A (en) * 1983-06-29 1985-01-17 Amada Metoretsukusu:Kk Hydraulic cylinder and cylinder control method
JPH05309710A (en) * 1992-05-13 1993-11-22 Mitsubishi Heavy Ind Ltd Hydraulically mold transferring device in injection molding machine
JPH0778032A (en) * 1993-07-30 1995-03-20 Perkin Elmer Corp:The Valve device for change of flow rate of fluid
JP2002256983A (en) * 2001-03-02 2002-09-11 Mitsubishi Motors Corp Exhaust gas recirculating device
WO2002086327A1 (en) * 2001-04-23 2002-10-31 Matti Linjama A control system and a method for controlling an actuator and for optimizing the control by means of sets of valves coupled in parallel
JP2005127203A (en) * 2003-10-23 2005-05-19 Hitachi Ltd Control device for gas turbine facilities
JP2012528364A (en) * 2009-05-29 2012-11-12 メッツォ ペーパー インコーポレイテッド Control method of digital hydraulic pressure control device
CN105673590A (en) * 2016-03-10 2016-06-15 李阳 Pressing machine control method, oil way control system and pressing machine
JP2018532969A (en) * 2015-11-06 2018-11-08 プライガー マシーネンバウ ゲーエムベーハー ウント コンパニ カーゲーＰｌｅｉｇｅｒ Ｍａｓｃｈｉｎｅｎｂａｕ Ｇｍｂｈ ＆ Ｃｏ．Ｋｇ Method and apparatus for controlling a hydraulically actuated drive of a valve

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827213A (en) * 1981-08-12 1983-02-17 Matsushita Electric Works Ltd Temperature compensating circuit
JPS5831500U (en) * 1981-08-26 1983-03-01 昭和電線電纜株式会社 gas valve
JPS5865395A (en) * 1981-10-12 1983-04-19 椛山　隼夫 Stepped type variable decompression device
JPS6246756B2 (en) * 1981-10-12 1987-10-05 Hayao Kabayama
JPS58102805A (en) * 1981-12-10 1983-06-18 Toshiba Mach Co Ltd Closed loop speed control circuit for oil pressure actuator
JPS5937302A (en) * 1982-08-26 1984-02-29 Ube Ind Ltd Speed control method of cylinder in hydraulic system
JPH0241645B2 (en) * 1982-08-26 1990-09-18
JPS608502A (en) * 1983-06-29 1985-01-17 Amada Metoretsukusu:Kk Hydraulic cylinder and cylinder control method
JPH05309710A (en) * 1992-05-13 1993-11-22 Mitsubishi Heavy Ind Ltd Hydraulically mold transferring device in injection molding machine
JPH0778032A (en) * 1993-07-30 1995-03-20 Perkin Elmer Corp:The Valve device for change of flow rate of fluid
JP2002256983A (en) * 2001-03-02 2002-09-11 Mitsubishi Motors Corp Exhaust gas recirculating device
WO2002086327A1 (en) * 2001-04-23 2002-10-31 Matti Linjama A control system and a method for controlling an actuator and for optimizing the control by means of sets of valves coupled in parallel
JP2005127203A (en) * 2003-10-23 2005-05-19 Hitachi Ltd Control device for gas turbine facilities
JP2012528364A (en) * 2009-05-29 2012-11-12 メッツォ ペーパー インコーポレイテッド Control method of digital hydraulic pressure control device
JP2018532969A (en) * 2015-11-06 2018-11-08 プライガー マシーネンバウ ゲーエムベーハー ウント コンパニ カーゲーＰｌｅｉｇｅｒ Ｍａｓｃｈｉｎｅｎｂａｕ Ｇｍｂｈ ＆ Ｃｏ．Ｋｇ Method and apparatus for controlling a hydraulically actuated drive of a valve
CN105673590A (en) * 2016-03-10 2016-06-15 李阳 Pressing machine control method, oil way control system and pressing machine

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