JPS5614605A - Hydraulic driving method and system for actuator - Google Patents

Hydraulic driving method and system for actuator

Info

Publication number
JPS5614605A
JPS5614605A JP8742179A JP8742179A JPS5614605A JP S5614605 A JPS5614605 A JP S5614605A JP 8742179 A JP8742179 A JP 8742179A JP 8742179 A JP8742179 A JP 8742179A JP S5614605 A JPS5614605 A JP S5614605A
Authority
JP
Japan
Prior art keywords
actuators
pump
valves
controlled
output
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
JP8742179A
Other languages
Japanese (ja)
Other versions
JPS6314201B2 (en
Inventor
Yasuo Tanaka
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP8742179A priority Critical patent/JPS5614605A/en
Publication of JPS5614605A publication Critical patent/JPS5614605A/en
Publication of JPS6314201B2 publication Critical patent/JPS6314201B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To improve the operability of various actuators upon a simultaneous operation of the actuators, by detecting the condition and magnitude of the load of each of the actuators and effecting a meter-out control and pump output control of each antuator in accordance with the thus-detected condition and magnitude of the load.
CONSTITUTION: Change-over valves 32, 34 are respectively provided with output lines 35, 36 of a pump 37 to control the fluid communications between the pump 37 and actuators 27, 30 or tank 44 respectively. Throttle valves 39, 42 and open/close valves 40, 43 are provided parallelly with their corresponding return lines 38, 41 from the actuators 27, 30. The change-over valves 32, 34 can be controlled in accordance with the conditions and magnitudes of the loads of their corresponding actuators 27, 30. Thus, when the actuators 27, 30 are operated as motors, they are controlled by the output from the pump 37. On the other hand, when the actuators 27, 30 are operated as pumps, they are meter-out controlled by their respective throttle valves 39, 42. Consequently, the operability of the actuators has been improved.
COPYRIGHT: (C)1981,JPO&Japio
JP8742179A 1979-07-12 1979-07-12 Hydraulic driving method and system for actuator Granted JPS5614605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8742179A JPS5614605A (en) 1979-07-12 1979-07-12 Hydraulic driving method and system for actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8742179A JPS5614605A (en) 1979-07-12 1979-07-12 Hydraulic driving method and system for actuator

Publications (2)

Publication Number Publication Date
JPS5614605A true JPS5614605A (en) 1981-02-12
JPS6314201B2 JPS6314201B2 (en) 1988-03-30

Family

ID=13914405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8742179A Granted JPS5614605A (en) 1979-07-12 1979-07-12 Hydraulic driving method and system for actuator

Country Status (1)

Country Link
JP (1) JPS5614605A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837238A (en) * 1981-08-28 1983-03-04 Iseki & Co Ltd Flow rate controller in loader
JPS5991238A (en) * 1982-09-23 1984-05-25 ヴイツカ−ズ・インコ−ポレ−テツド System for controlling hydraulic force distribution between electromotor and machinery in engine driven vehicle
JPS6051508A (en) * 1983-08-31 1985-03-23 Toyota Motor Corp Apparatus for removing moisture in recirculated oil
JPS6233947A (en) * 1985-08-07 1987-02-13 Hitachi Constr Mach Co Ltd Oil-pressure driver
JPS6233948A (en) * 1985-08-07 1987-02-13 Hitachi Constr Mach Co Ltd Oil-pressure driver
JPS6294622A (en) * 1985-10-22 1987-05-01 Komatsu Ltd Controller for construction machine
JPS62206127A (en) * 1986-03-06 1987-09-10 Hitachi Constr Mach Co Ltd Hydraulic controller for civil construction machine
JPS6412106A (en) * 1987-07-06 1989-01-17 Kayaba Industry Co Ltd Priority operation control device for high-load actuator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246277A (en) * 1975-10-08 1977-04-12 Daikin Ind Ltd Fluid system
JPS5316174A (en) * 1976-07-27 1978-02-14 Budzich Tadeusz Load control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246277A (en) * 1975-10-08 1977-04-12 Daikin Ind Ltd Fluid system
JPS5316174A (en) * 1976-07-27 1978-02-14 Budzich Tadeusz Load control device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837238A (en) * 1981-08-28 1983-03-04 Iseki & Co Ltd Flow rate controller in loader
JPS5991238A (en) * 1982-09-23 1984-05-25 ヴイツカ−ズ・インコ−ポレ−テツド System for controlling hydraulic force distribution between electromotor and machinery in engine driven vehicle
JPH0421019B2 (en) * 1982-09-23 1992-04-08 Vickers Inc
JPS6051508A (en) * 1983-08-31 1985-03-23 Toyota Motor Corp Apparatus for removing moisture in recirculated oil
JPS6233947A (en) * 1985-08-07 1987-02-13 Hitachi Constr Mach Co Ltd Oil-pressure driver
JPS6233948A (en) * 1985-08-07 1987-02-13 Hitachi Constr Mach Co Ltd Oil-pressure driver
JPS6294622A (en) * 1985-10-22 1987-05-01 Komatsu Ltd Controller for construction machine
JPS62206127A (en) * 1986-03-06 1987-09-10 Hitachi Constr Mach Co Ltd Hydraulic controller for civil construction machine
JPS6412106A (en) * 1987-07-06 1989-01-17 Kayaba Industry Co Ltd Priority operation control device for high-load actuator

Also Published As

Publication number Publication date
JPS6314201B2 (en) 1988-03-30

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