JPS62117306U - - Google Patents
Info
- Publication number
- JPS62117306U JPS62117306U JP519686U JP519686U JPS62117306U JP S62117306 U JPS62117306 U JP S62117306U JP 519686 U JP519686 U JP 519686U JP 519686 U JP519686 U JP 519686U JP S62117306 U JPS62117306 U JP S62117306U
- Authority
- JP
- Japan
- Prior art keywords
- cylinders
- hydraulic circuit
- flow rate
- pipe connecting
- flow
- 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
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の作業機械の油圧回路の一実施
例を示す回路図、第２図は第１図のＹ部拡大断面
図、第３図は一般的な油圧シヨベルを示す斜視図
、第４図は従来の作業機械の油圧回路を示す回路
図である。
１……作業リンク（ブーム）、２，３……シリ
ンダ、５，６……パイロツト式逆止弁、７〜１０
……主管路、１１……管路、１２，１３……流量
制御弁（開放バネ付チエツク弁）。
Fig. 1 is a circuit diagram showing an embodiment of the hydraulic circuit of the working machine of the present invention, Fig. 2 is an enlarged sectional view of the Y section in Fig. 1, and Fig. 3 is a perspective view showing a general hydraulic excavator. FIG. 4 is a circuit diagram showing a hydraulic circuit of a conventional working machine. 1...Work link (boom), 2, 3...Cylinder, 5, 6...Pilot type check valve, 7-10
...Main pipe line, 11...Pipe line, 12, 13...Flow control valve (check valve with opening spring).
Claims (1)
のシリンダの少なくとも一方側の室をそれぞれパ
イロツト式逆止弁を介して油圧源に接続する主管
路と、同期的に作動するために複数のシリンダ間
を連絡する管路とからなる作業機械の油圧回路に
おいて、前記複数のシリンダ間を連絡する管路に
、予め定めた流量以上が流れようとした時に該管
路を閉じる流量制御弁を設けたことを特徴とする
作業機械の油圧回路。 A plurality of cylinders for swinging the work link, a main pipe connecting at least one chamber of each cylinder to a hydraulic power source via a pilot check valve, and a connection between the plurality of cylinders for synchronous operation. In a hydraulic circuit of a working machine consisting of connecting pipes, the pipe connecting the plurality of cylinders is provided with a flow control valve that closes the pipe when a flow rate exceeding a predetermined flow rate is about to flow. Features: Hydraulic circuit for working machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP519686U JPS62117306U (en) | 1986-01-20 | 1986-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP519686U JPS62117306U (en) | 1986-01-20 | 1986-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62117306U true JPS62117306U (en) | 1987-07-25 |
Family
ID=30786556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP519686U Pending JPS62117306U (en) | 1986-01-20 | 1986-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62117306U (en) |
-
1986
- 1986-01-20 JP JP519686U patent/JPS62117306U/ja active Pending
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