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JPS5690158A - Slewing drive controller - Google Patents

Slewing drive controller

Info

Publication number
JPS5690158A
JPS5690158A JP16473979A JP16473979A JPS5690158A JP S5690158 A JPS5690158 A JP S5690158A JP 16473979 A JP16473979 A JP 16473979A JP 16473979 A JP16473979 A JP 16473979A JP S5690158 A JPS5690158 A JP S5690158A
Authority
JP
Japan
Prior art keywords
pressure
joy stick
pressures
control unit
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.)
Granted
Application number
JP16473979A
Other languages
Japanese (ja)
Other versions
JPS5825907B2 (en
Inventor
Minoru Uchida
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.)
Uchida Oil Hydraulics Mfg Co Ltd
Original Assignee
Uchida Oil Hydraulics Mfg 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 Uchida Oil Hydraulics Mfg Co Ltd filed Critical Uchida Oil Hydraulics Mfg Co Ltd
Priority to JP16473979A priority Critical patent/JPS5825907B2/en
Publication of JPS5690158A publication Critical patent/JPS5690158A/en
Publication of JPS5825907B2 publication Critical patent/JPS5825907B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

PURPOSE: To improve the controlling property by providing the first control unit operated by the pressure of a closed oil-pressure circuit and the pressures from a joy stick valve and the second control unit operated according to the pressure controlled by the joy stick valve.
CONSTITUTION: Provided is the first control unit 9 which is operated by the pressure difference between the circuits on the supply and return sides of a closed oil- pressure circuit 6 and two pressures from a joy stick valve 17 provided in the circuit leading to an external pilot pressure source 11 and controls operations of said pressure source 11. Moreover provided is the second control unit 10 which is operated by the pressure difference between the two pressures from the joy stick valve 17 and selects either the pressure of the external pilot pressure source 11 or the two pressures from the joy stick valve 17 as well as makes a throttle change-over valve 8 perform its change-over operation. Thereby, a precise operation control such as inching operation is made possible.
COPYRIGHT: (C)1981,JPO&Japio
JP16473979A 1979-12-20 1979-12-20 Swing drive control device Expired JPS5825907B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16473979A JPS5825907B2 (en) 1979-12-20 1979-12-20 Swing drive control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16473979A JPS5825907B2 (en) 1979-12-20 1979-12-20 Swing drive control device

Publications (2)

Publication Number Publication Date
JPS5690158A true JPS5690158A (en) 1981-07-22
JPS5825907B2 JPS5825907B2 (en) 1983-05-30

Family

ID=15798977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16473979A Expired JPS5825907B2 (en) 1979-12-20 1979-12-20 Swing drive control device

Country Status (1)

Country Link
JP (1) JPS5825907B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844573U (en) * 1981-09-18 1983-03-25 カヤバ工業株式会社 Circuit valve structure that allows replacement of hydraulic power source circuit
JPS59183562U (en) * 1983-05-24 1984-12-06 株式会社小松製作所 Hydraulic closed circuit control device
JP2011241952A (en) * 2010-05-20 2011-12-01 Komatsu Ltd Control device for electric actuator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844573U (en) * 1981-09-18 1983-03-25 カヤバ工業株式会社 Circuit valve structure that allows replacement of hydraulic power source circuit
JPS6235971Y2 (en) * 1981-09-18 1987-09-12
JPS59183562U (en) * 1983-05-24 1984-12-06 株式会社小松製作所 Hydraulic closed circuit control device
JP2011241952A (en) * 2010-05-20 2011-12-01 Komatsu Ltd Control device for electric actuator
US9617713B2 (en) 2010-05-20 2017-04-11 Komatsu Ltd. Control device for an electric actuator

Also Published As

Publication number Publication date
JPS5825907B2 (en) 1983-05-30

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