JPS61166204U - - Google Patents
Info
- Publication number
- JPS61166204U JPS61166204U JP4990585U JP4990585U JPS61166204U JP S61166204 U JPS61166204 U JP S61166204U JP 4990585 U JP4990585 U JP 4990585U JP 4990585 U JP4990585 U JP 4990585U JP S61166204 U JPS61166204 U JP S61166204U
- Authority
- JP
- Japan
- Prior art keywords
- discharge passage
- actuator
- pump
- switching valve
- closed
- 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
- 230000007935 neutral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は従来例の回路図である。
Ｐ１は第１ポンプ、Ｐ２は第２ポンプ、１は吐
出路、２は逆止弁、３は補助路、４は第１切換弁
、８は第１アクチユエータ、９は吐出路、１０は
第２切換弁、１２は第２アクチユエータ。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional example. P1 is the first pump, P2 is the second pump, 1 is the discharge path, 2 is the check valve, 3 is the auxiliary path, 4 is the first switching valve, 8 is the first actuator, 9 is the discharge path, 10 is the a second switching valve; 12 is a second actuator;
Claims (1)
補助路３に接続し、この補助路３を第２ポンプＰ
２の吐出路９に接続すると共に、前記吐出路１と
吐出路９とには第１アクチユエータ８と第２アク
チユエータ１２に圧油を供給する第１切換弁４と
第２切換弁１０とをそれぞれ設け、この第１切換
弁４を、吐出路１を第２切換弁１０に接続し補助
路３を閉じ第１アクチユエータ８をドレーンに接
続する中立位置Ｎ、吐出路１を第２切換弁１０に
接続し補助路３を第１アクチユエータ８に接続す
る第１位置、吐出路１を閉じて補助路３を第１
アクチユエータ８に接続する第２位置とを有す
るものとし、第２切換弁１０を、第１ポンプＰ１
の吐出路１をドレーンに接続し第２ポンプＰ２の
吐出路９を閉じ第２アクチユエータ１２をドレー
ンに接続する中立位置Ｎ、第１ポンプＰ１の吐出
路１をドレーンに接続し第２ポンプＰ２の吐出路
９を第２アクチユエータ１２に接続する第１位置
、第１ポンプＰ１の吐出路１を閉じ第２ポンプ
Ｐ２の吐出路９を第２アクチユエータ１２に接続
する第２位置とを有するものとしたことを特徴
とするアクチユエータの駆動回路。 The discharge path 1 of the first pump P1 is connected to the auxiliary path 3 via the check valve 2, and this auxiliary path 3 is connected to the second pump P1.
A first switching valve 4 and a second switching valve 10 are connected to the discharge passage 9 of No. 2 and supply pressure oil to the first actuator 8 and the second actuator 12 in the discharge passage 1 and the discharge passage 9, respectively. The first switching valve 4 is placed in a neutral position N where the discharge passage 1 is connected to the second switching valve 10, the auxiliary passage 3 is closed and the first actuator 8 is connected to the drain, and the discharge passage 1 is connected to the second switching valve 10. a first position in which the discharge passage 1 is closed and the auxiliary passage 3 is connected to the first actuator 8;
and a second position connected to the actuator 8, and the second switching valve 10 is connected to the first pump P1.
A neutral position N in which the discharge passage 1 of the first pump P1 is connected to the drain and the discharge passage 9 of the second pump P2 is closed and the second actuator 12 is connected to the drain; A first position in which the discharge passage 9 of the first pump P2 is connected to the second actuator 12, and a second position in which the discharge passage 1 of the first pump P1 is closed and the discharge passage 9 of the second pump P2 is connected to the second actuator 12 . An actuator drive circuit characterized by having:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4990585U JPS61166204U (en) | 1985-04-05 | 1985-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4990585U JPS61166204U (en) | 1985-04-05 | 1985-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61166204U true JPS61166204U (en) | 1986-10-15 |
Family
ID=30567523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4990585U Pending JPS61166204U (en) | 1985-04-05 | 1985-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61166204U (en) |
-
1985
- 1985-04-05 JP JP4990585U patent/JPS61166204U/ja active Pending
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