JPS5816264U - Operation circuit of hydraulic actuator in construction machinery - Google Patents
Operation circuit of hydraulic actuator in construction machineryInfo
- Publication number
- JPS5816264U JPS5816264U JP10924981U JP10924981U JPS5816264U JP S5816264 U JPS5816264 U JP S5816264U JP 10924981 U JP10924981 U JP 10924981U JP 10924981 U JP10924981 U JP 10924981U JP S5816264 U JPS5816264 U JP S5816264U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic actuator
- circuit
- hydraulic
- valve
- pilot
- 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)
- Component Parts Of Construction Machinery (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図は従来の建設機械用走行装置の操作回路図、第２
図は本考案の一実施例である建設機械用走行装置の操作
回路図である。
１・・・・・・走行用油圧モータ、２１・・・・・油圧
モータ駆動用の油圧ポンプ、３・・・・・・油圧パイロ
ット方向切換弁、４・・・・・・パイロット弁、５・・
・・・・操作用油圧ポンプ、６・・・・・・・回路、９
・・・・・・電磁弁、１０・・・・・・スイッチ。Figure 1 is an operating circuit diagram of a conventional traveling device for construction machinery, Figure 2
The figure is an operation circuit diagram of a traveling device for construction machinery, which is an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Hydraulic motor for traveling, 21...Hydraulic pump for driving the hydraulic motor, 3...Hydraulic pilot direction switching valve, 4...Pilot valve, 5・・・
...Operating hydraulic pump, 6...Circuit, 9
...Solenoid valve, 10...Switch.
Claims (1)
圧ポンプと、両者を接続する駆動回路に介在されて油圧
アクチュエータへの圧油供給方向″ を制御する油圧
パイロット方向切換弁と、操作用油圧ポンプの圧油を一
次圧力とし、その二次圧力によって前記油圧パイロット
方向切換弁を切換制御するパイロット弁とを備えた建設
機械における油圧アクチュエータの操作回路において、
前記操作用油圧ポンプと前記パイロット弁とを接続する
回路の途中に、励磁されると該回路を連通させ、かつ消
磁されると回路を遮断しうる電磁弁を設け、該電磁弁の
電気回路にはそのＯＮ、ＯＦＦ用のスイッチを挿入した
ことを特徴とする建設機械における油圧アクチュエータ
の操作回路。A hydraulic actuator and a hydraulic pump for driving the hydraulic actuator, a hydraulic pilot direction switching valve that controls the direction of pressure oil supply to the hydraulic actuator through a drive circuit that connects both, and a hydraulic pilot direction switching valve that controls the direction of pressure oil supply to the hydraulic actuator, and An operation circuit for a hydraulic actuator in a construction machine, comprising a pilot valve that controls switching of the hydraulic pilot direction switching valve using the secondary pressure.
A solenoid valve is provided in the middle of a circuit connecting the operating hydraulic pump and the pilot valve, and is capable of connecting the circuit when energized and interrupting the circuit when demagnetized, and connecting the electric circuit of the solenoid valve with the solenoid valve. An operating circuit for a hydraulic actuator in construction machinery, characterized in that a switch for turning it on and off is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10924981U JPS5816264U (en) | 1981-07-24 | 1981-07-24 | Operation circuit of hydraulic actuator in construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10924981U JPS5816264U (en) | 1981-07-24 | 1981-07-24 | Operation circuit of hydraulic actuator in construction machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5816264U true JPS5816264U (en) | 1983-02-01 |
Family
ID=29903630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10924981U Pending JPS5816264U (en) | 1981-07-24 | 1981-07-24 | Operation circuit of hydraulic actuator in construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816264U (en) |
-
1981
- 1981-07-24 JP JP10924981U patent/JPS5816264U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60157946U (en) | Engine control device for hydraulically driven vehicles | |
| JPS5816264U (en) | Operation circuit of hydraulic actuator in construction machinery | |
| JPS5816265U (en) | Operation circuit of hydraulic actuator in construction machinery | |
| JPS59164803U (en) | Hydraulic actuator operation circuit | |
| JPS61152842U (en) | ||
| JPS59164802U (en) | Hydraulic actuator operation circuit | |
| JPS5980555U (en) | Bucket vibration drive device for excavation work vehicle | |
| JPS6125552U (en) | Engine control device for hydraulically driven vehicles | |
| JPS59102651U (en) | Control device for push-pull device in motor scraper | |
| JPS6132589U (en) | Engine control device for machines equipped with variable displacement hydraulic pumps | |
| JPS60159799U (en) | Special vehicle control device | |
| JPS6062559U (en) | Hydraulic breaker attachment device for work trolley | |
| JPS5885523U (en) | Hydraulic drive vehicle control circuit | |
| JPS58114905U (en) | Actuator hydraulic circuit | |
| JPS6097403U (en) | Emergency pump drive device | |
| JPS5864691U (en) | Hook operation mechanism | |
| JPS60100583U (en) | Concrete pump control device | |
| JPS59146649U (en) | hydraulic power transmission device | |
| JPS61151985U (en) | ||
| JPS6071773U (en) | Spring return/solenoid operated spool type directional valve for hydraulic equipment of agricultural machinery | |
| JPS62138906U (en) | ||
| JPS59195206U (en) | Travel hydraulic circuit | |
| JPS5814031U (en) | Hydraulic pump drive structure of work vehicle | |
| JPS6259686U (en) | ||
| JPS5957486U (en) | hydraulic drive winch |