JPS5482574A - Control circuit of actuator - Google Patents

Control circuit of actuator

Info

Publication number
JPS5482574A
JPS5482574A JP15033277A JP15033277A JPS5482574A JP S5482574 A JPS5482574 A JP S5482574A JP 15033277 A JP15033277 A JP 15033277A JP 15033277 A JP15033277 A JP 15033277A JP S5482574 A JPS5482574 A JP S5482574A
Authority
JP
Japan
Prior art keywords
lever
rises
check valves
motor
revolution
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.)
Granted
Application number
JP15033277A
Other languages
Japanese (ja)
Other versions
JPS5740922B2 (en
Inventor
Atsuro Akiyama
Satoru Torii
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP15033277A priority Critical patent/JPS5482574A/en
Priority to NL7812137A priority patent/NL7812137A/en
Priority to DE19782853794 priority patent/DE2853794A1/en
Publication of JPS5482574A publication Critical patent/JPS5482574A/en
Publication of JPS5740922B2 publication Critical patent/JPS5740922B2/ja
Granted 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
    • 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

Landscapes

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

Abstract

PURPOSE: To simply control the direction, speed, etc. of an actuator by operating a lever at a time and to easily operate a crane in a turning flowing condition, by combining check valves and variable relief valves.
CONSTITUTION: When tilting a lever 9 in the A direction, the set pressure of a relief valve 5 rises in response to the operating angle, pushing force to check valves 42, 44 rises and pressure discharged from a port 22 rises in response to the rise of pushing force. Thus, the speed of the revolution and acceleration of a motor 3 can be controlled by operating the lever 9. When returning the lever 9 to a neutral location, check valves 41, 42, 43, 44 become free, the motor 3 continuously turns by the inertia force of a body of revolution 4 and so-called flowing operation in the turning of a crane can be performed. When tilting the lever 9 in the B direction, the set pressure of a relief valve 6 rises, the check valves 41, 43 are pushed, fluid returned from the motor 3 is blocked and said revolution stops.
COPYRIGHT: (C)1979,JPO&Japio
JP15033277A 1977-12-13 1977-12-13 Control circuit of actuator Granted JPS5482574A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP15033277A JPS5482574A (en) 1977-12-13 1977-12-13 Control circuit of actuator
NL7812137A NL7812137A (en) 1977-12-13 1978-12-13 CONTROL CHAIN FOR DRIVE GEAR.
DE19782853794 DE2853794A1 (en) 1977-12-13 1978-12-13 Hydraulic drive control circuit - has intersecting passages with regulator valves controlled by release valves (NL 15.6.79)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15033277A JPS5482574A (en) 1977-12-13 1977-12-13 Control circuit of actuator

Publications (2)

Publication Number Publication Date
JPS5482574A true JPS5482574A (en) 1979-06-30
JPS5740922B2 JPS5740922B2 (en) 1982-08-31

Family

ID=15494688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15033277A Granted JPS5482574A (en) 1977-12-13 1977-12-13 Control circuit of actuator

Country Status (3)

Country Link
JP (1) JPS5482574A (en)
DE (1) DE2853794A1 (en)
NL (1) NL7812137A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913704U (en) * 1982-07-19 1984-01-27 豊興工業株式会社 directional control valve device
JPS6073106A (en) * 1983-09-30 1985-04-25 Bridgestone Corp Drive control device for connecting parts of elastic contraction body
JPS60125401A (en) * 1983-12-08 1985-07-04 Bridgestone Corp Servo mechanism of cylinder

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011088A1 (en) * 1979-03-26 1980-10-09 Sperry Corp HYDRAULIC DRIVE CONTROL
NL8201638A (en) * 1982-04-20 1983-11-16 Jacobus Hendrikus Van Leusden HOISTING EQUIPMENT.
DE3601563A1 (en) * 1986-01-21 1987-07-23 Herbert Franke Pneumatic control valve
US5046312A (en) * 1988-07-08 1991-09-10 Kubota, Ltd. Swivel speed control circuit for working vehicle
DE19500748C2 (en) * 1995-01-12 2000-12-14 Danfoss As Three-way or multi-way valve
DE19500747C2 (en) * 1995-01-12 2000-03-09 Danfoss As Two-way poppet valve
DE19500749C2 (en) * 1995-01-12 2000-12-07 Danfoss As Three-way or multi-way valve
WO1997022809A1 (en) * 1995-12-15 1997-06-26 Commercial Intertech Limited Control valves

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120952A (en) * 1974-08-16 1976-02-19 Yuken Kogyo Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120952A (en) * 1974-08-16 1976-02-19 Yuken Kogyo Co Ltd

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913704U (en) * 1982-07-19 1984-01-27 豊興工業株式会社 directional control valve device
JPS6073106A (en) * 1983-09-30 1985-04-25 Bridgestone Corp Drive control device for connecting parts of elastic contraction body
JPH05561B2 (en) * 1983-09-30 1993-01-06 Bridgestone Corp
JPS60125401A (en) * 1983-12-08 1985-07-04 Bridgestone Corp Servo mechanism of cylinder

Also Published As

Publication number Publication date
JPS5740922B2 (en) 1982-08-31
DE2853794A1 (en) 1979-06-21
NL7812137A (en) 1979-06-15

Similar Documents

Publication Publication Date Title
JPS5482574A (en) Control circuit of actuator
GB1307068A (en) Pressure fluid operated control system
JPS5482573A (en) Control circuit of actuator
JPS5715103A (en) Falloff preventive circuit for liquid pressure cylinder
JPS5628302A (en) Speed control circuit of crane or the like
JPS5486077A (en) Actuator brake circuit
JPS5663102A (en) Turning oil-pressure circuit for oil-pressure shovel, etc.
JPS57173657A (en) Inertial mass driving oil pressure closed circuit
JPS5469676A (en) Oil pressure control system
JPS57201434A (en) Oil-pressure circuit for hydraulic shovel
JPS5614603A (en) Control circuit for actuator
JPS55139505A (en) Hydraulic circuit for rotary machine
JPS5751003A (en) Control circuit for actuator
JPS5490465A (en) Joining hydraulic circuit
JPS5368388A (en) Fluid servo-device
JPS53140479A (en) Hydraulic pressure controller
JPS57177454A (en) Control device of oil pressure system
JPS5729860A (en) Direction control valve
JPS5279195A (en) Piston positional shift regulating controller
JPS52121804A (en) Variable capacity liquid pressure pump
JPS5781536A (en) Turnable oil-pressure closed circuit for construction machinery
JPS55139502A (en) Control circuit for actuator
JPS54120123A (en) Device for controlling load box descending speed in dump car
JPS60182377A (en) Control valve for variable displacement pump and circuit thereof
JPS53137403A (en) Controller for variable-discharge hydraulic pump