JPS60111958U - Actuator operating circuit in construction machinery - Google Patents
Actuator operating circuit in construction machineryInfo
- Publication number
- JPS60111958U JPS60111958U JP19937483U JP19937483U JPS60111958U JP S60111958 U JPS60111958 U JP S60111958U JP 19937483 U JP19937483 U JP 19937483U JP 19937483 U JP19937483 U JP 19937483U JP S60111958 U JPS60111958 U JP S60111958U
- Authority
- JP
- Japan
- Prior art keywords
- construction machinery
- electric signal
- operating circuit
- actuator operating
- main 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.)
- Pending
Links
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来公知のアクチュエーター作動用油圧回路。
第2図は本考案に係る油圧回路。第3図と第4図は増幅
器によるeH−eo’(又はi。)関係グラフ。
図において;1・・・油圧シリンダー、2・・・油圧ポ
ンプ、3・・・エンジン、4・・・メインバルブ、5・
・・タンク、6・・・リリーフ弁、7・・・リリーフ弁
、8・・・チェック弁、9・・・リリーフ弁、10・・
・チェック弁、11・・・チェック弁、12・・・操作
レバー、13・・・変位検出器、14・・・増幅器、1
5・・・変換器、16・・・回転数検出器、17・・・
接点、18・・・コイル、−19・・・固定絞り、20
・・・チェック弁、21・・・負荷。Figure 1 shows a conventionally known hydraulic circuit for operating an actuator. Figure 2 shows a hydraulic circuit according to the present invention. FIGS. 3 and 4 are eH-eo' (or i.) relationship graphs according to the amplifier. In the figure: 1... Hydraulic cylinder, 2... Hydraulic pump, 3... Engine, 4... Main valve, 5...
...Tank, 6...Relief valve, 7...Relief valve, 8...Check valve, 9...Relief valve, 10...
・Check valve, 11...Check valve, 12...Operation lever, 13...Displacement detector, 14...Amplifier, 1
5...Converter, 16...Rotation speed detector, 17...
Contact, 18... Coil, -19... Fixed aperture, 20
...Check valve, 21...Load.
Claims (1)
を電気信号として出力する手段と、該手段からの電気信
号によってメインバルブ操作用の電気信号のゲインを変
換する手段を有し、前記ゲイン変換でメインバルブのス
プールストロ−クラ制御するようにして油圧シリンダー
の速度制御を電気信号で作動するメインバルブで行なう
ようにしたことを特徴とする建設機械におけるアクチュ
エータの作動回路。It has a means for detecting the rotational speed of the engine for driving the pump and outputting the rotational speed as an electric signal, and a means for converting the gain of the electric signal for operating the main valve by the electric signal from the means, and the gain 1. An actuator operating circuit for construction machinery, characterized in that the main valve operated by an electric signal controls the speed of a hydraulic cylinder by controlling the spool stroker of the main valve by conversion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19937483U JPS60111958U (en) | 1983-12-28 | 1983-12-28 | Actuator operating circuit in construction machinery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19937483U JPS60111958U (en) | 1983-12-28 | 1983-12-28 | Actuator operating circuit in construction machinery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60111958U true JPS60111958U (en) | 1985-07-29 |
Family
ID=30759238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19937483U Pending JPS60111958U (en) | 1983-12-28 | 1983-12-28 | Actuator operating circuit in construction machinery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60111958U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009127296A (en) * | 2007-11-22 | 2009-06-11 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Swing drive control unit and construction machinery including the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840561U (en) * | 1971-09-20 | 1973-05-23 | ||
JPS5491687A (en) * | 1977-12-28 | 1979-07-20 | Hitachi Constr Mach Co Ltd | Hydraulic driving system |
-
1983
- 1983-12-28 JP JP19937483U patent/JPS60111958U/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840561U (en) * | 1971-09-20 | 1973-05-23 | ||
JPS5491687A (en) * | 1977-12-28 | 1979-07-20 | Hitachi Constr Mach Co Ltd | Hydraulic driving system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009127296A (en) * | 2007-11-22 | 2009-06-11 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Swing drive control unit and construction machinery including the same |
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