JPH0318260U - - Google Patents
Info
- Publication number
- JPH0318260U JPH0318260U JP7837889U JP7837889U JPH0318260U JP H0318260 U JPH0318260 U JP H0318260U JP 7837889 U JP7837889 U JP 7837889U JP 7837889 U JP7837889 U JP 7837889U JP H0318260 U JPH0318260 U JP H0318260U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- port
- steering
- pilot 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
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の油圧回路図、第２図は従来の
一般的な油圧回路図である。
１……直進用パイロツトバルブ、２，３……左
右操向用パイロツトバルブ、４，５……左右走行
用主コントロールバルブ、６，７……油圧ポンプ
、８……タンク、９……パイロツト油圧源。
FIG. 1 is a hydraulic circuit diagram of the present invention, and FIG. 2 is a conventional general hydraulic circuit diagram. 1... Pilot valve for straight travel, 2, 3... Pilot valve for left and right steering, 4, 5... Main control valve for left and right travel, 6, 7... Hydraulic pump, 8... Tank, 9... Pilot oil pressure source.
Claims (1)
用主コントロールバルブの作動方向を切り換える
ようにした操向制御回路において、前記左右操向
用パイロツトバルブと並列に直進用パイロツトバ
ルブを設け、該直進用パイロツトバルブの前進用
ポートは前記主コントロールバルブの前進側パイ
ロツトポートに、後進用ポートは同じく後進側パ
イロツトポートにそれぞれ接続してなることを特
徴とする建設機械の操向制御回路。 In a steering control circuit in which the operating direction of a main control valve for left and right travel is switched by a pilot valve for left and right steering, a pilot valve for straight travel is provided in parallel with the pilot valve for left and right steering, and the pilot valve for straight travel is provided in parallel with the pilot valve for left and right steering. A steering control circuit for construction machinery, characterized in that a forward port of the valve is connected to a forward pilot port of the main control valve, and a reverse port is connected to a reverse pilot port of the main control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7837889U JPH0318260U (en) | 1989-07-04 | 1989-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7837889U JPH0318260U (en) | 1989-07-04 | 1989-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318260U true JPH0318260U (en) | 1991-02-22 |
Family
ID=31621604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7837889U Pending JPH0318260U (en) | 1989-07-04 | 1989-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101397448B1 (en) * | 2013-03-19 | 2014-05-20 | 국방과학연구소 | Wireless firing system and method thereof |
-
1989
- 1989-07-04 JP JP7837889U patent/JPH0318260U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101397448B1 (en) * | 2013-03-19 | 2014-05-20 | 국방과학연구소 | Wireless firing system and method thereof |