JPS6436826A - Drive controller for slewing body - Google Patents

Drive controller for slewing body

Info

Publication number
JPS6436826A
JPS6436826A JP19025587A JP19025587A JPS6436826A JP S6436826 A JPS6436826 A JP S6436826A JP 19025587 A JP19025587 A JP 19025587A JP 19025587 A JP19025587 A JP 19025587A JP S6436826 A JPS6436826 A JP S6436826A
Authority
JP
Japan
Prior art keywords
flow rate
slewing
lever
working machine
control input
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
JP19025587A
Other languages
Japanese (ja)
Other versions
JPH0745748B2 (en
Inventor
Toichi Hirata
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 JP19025587A priority Critical patent/JPH0745748B2/en
Publication of JPS6436826A publication Critical patent/JPS6436826A/en
Publication of JPH0745748B2 publication Critical patent/JPH0745748B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)

Abstract

PURPOSE:To raise the efficiency and durability of working machine by a method in which the revolving number of motor and the control input of lever are loaded into the control circuit of working machine with a slewing body having great inertia and flow rate for optimal opening degree of control valve is commanded on the basis of the reading of the control circuit. CONSTITUTION:Revolving number N sent from a sensor 17 provided for a slewing motor 4 and the control input X of a slewing lever are read by a controller 12' where the values S1, necessary flow rate QS of slewing motor, and command flow rate QL for the control input X of lever are calculated S2. Only when the difference QL-QS of these values exceeds a fixed value DELTAg, command flow rate for the opening degree of control valve is increased by the fixed value DELTAg S3-S5. The procedure is repeated. The loss of energy can thus be greatly reduced, and unfair operation of the working machine can also be controlled.
JP19025587A 1987-07-31 1987-07-31 Revolving structure drive control device Expired - Lifetime JPH0745748B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19025587A JPH0745748B2 (en) 1987-07-31 1987-07-31 Revolving structure drive control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19025587A JPH0745748B2 (en) 1987-07-31 1987-07-31 Revolving structure drive control device

Publications (2)

Publication Number Publication Date
JPS6436826A true JPS6436826A (en) 1989-02-07
JPH0745748B2 JPH0745748B2 (en) 1995-05-17

Family

ID=16255093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19025587A Expired - Lifetime JPH0745748B2 (en) 1987-07-31 1987-07-31 Revolving structure drive control device

Country Status (1)

Country Link
JP (1) JPH0745748B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015075171A (en) * 2013-10-09 2015-04-20 日立住友重機械建機クレーン株式会社 Rotation control unit of construction machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19920867A1 (en) * 1999-05-06 2001-02-08 Orenstein & Koppel Ag Method for braking a rotatable superstructure of a work machine and swivel brake device
JP4884124B2 (en) * 2006-08-07 2012-02-29 住友建機株式会社 Hydraulic control circuit for construction machinery
JP5738674B2 (en) * 2011-05-25 2015-06-24 コベルコ建機株式会社 Swivel work machine
JP6118705B2 (en) * 2013-10-09 2017-04-19 日立住友重機械建機クレーン株式会社 Swivel control device for construction machinery
JP6335093B2 (en) * 2014-10-10 2018-05-30 川崎重工業株式会社 Hydraulic drive system for construction machinery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015075171A (en) * 2013-10-09 2015-04-20 日立住友重機械建機クレーン株式会社 Rotation control unit of construction machine

Also Published As

Publication number Publication date
JPH0745748B2 (en) 1995-05-17

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