JPS6436826A - Drive controller for slewing body - Google Patents
Drive controller for slewing bodyInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-07-31 JP JP19025587A patent/JPH0745748B2/en not_active Expired - Lifetime
Cited By (1)
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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