JPS6154062U - - Google Patents
Info
- Publication number
- JPS6154062U JPS6154062U JP13887584U JP13887584U JPS6154062U JP S6154062 U JPS6154062 U JP S6154062U JP 13887584 U JP13887584 U JP 13887584U JP 13887584 U JP13887584 U JP 13887584U JP S6154062 U JPS6154062 U JP S6154062U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- circuit
- switching
- throttle
- hydraulic
- 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 2
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の一実施例の油圧回路図、第２
図は従来例の油圧回路図である。
１ａ，１ｂ…供給回路、２…アンロード回路、
３…絞り、４…逆止弁、Ｖ１…第１切換弁、Ｖ２
…第２切換弁、Ｐ…油圧ポンプ、Ｔ…タンク、Ｘ
…バケツトシリンダ、Ｙ…旋回モータ。
Figure 1 is a hydraulic circuit diagram of one embodiment of the present invention, Figure 2 is a hydraulic circuit diagram of an embodiment of the present invention.
The figure is a hydraulic circuit diagram of a conventional example. 1a, 1b...supply circuit, 2...unload circuit,
3... Throttle, 4... Check valve, V 1 ... First switching valve, V 2
...Second switching valve, P...Hydraulic pump, T...Tank, X
...bucket cylinder, Y...swivel motor.
Claims (1)
弁と、旋回モータへの圧油を給排する第２切換弁
と、これら第１、第２切換弁を油圧ポンプに対し
て並列に接続する供給回路と、前記第１、第２切
換弁の各々が中立位置にある時、油圧ポンプの吐
出側を第２切換弁、第１切換弁を介してタンクに
接続するアンロード回路と、を備えて成る建設機
械の油圧回路において、前記第１切換弁側の供給
回路に絞りを設け、この絞りと第１切換弁との間
を、供給回路側を順方向とする逆止弁を介して第
１切換弁と第２切換弁との間のアンロード回路に
接続した建設機構の油圧回路。 A first switching valve that supplies and discharges pressure oil to the bucket cylinder, a second switching valve that supplies and discharges pressure oil to the swing motor, and these first and second switching valves are connected in parallel to the hydraulic pump. and an unload circuit that connects the discharge side of the hydraulic pump to the tank via the second switching valve and the first switching valve when each of the first and second switching valves is in a neutral position. In the hydraulic circuit of the construction machine, a throttle is provided in the supply circuit on the first switching valve side, and a check valve is connected between the throttle and the first switching valve with the supply circuit side facing forward. A hydraulic circuit of a construction mechanism connected to an unload circuit between the first switching valve and the second switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13887584U JPS6154062U (en) | 1984-09-12 | 1984-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13887584U JPS6154062U (en) | 1984-09-12 | 1984-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6154062U true JPS6154062U (en) | 1986-04-11 |
Family
ID=30697266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13887584U Pending JPS6154062U (en) | 1984-09-12 | 1984-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6154062U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726463B2 (en) * | 1974-06-20 | 1982-06-04 |
-
1984
- 1984-09-12 JP JP13887584U patent/JPS6154062U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726463B2 (en) * | 1974-06-20 | 1982-06-04 |
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