JPS643101U - - Google Patents
Info
- Publication number
- JPS643101U JPS643101U JP9706887U JP9706887U JPS643101U JP S643101 U JPS643101 U JP S643101U JP 9706887 U JP9706887 U JP 9706887U JP 9706887 U JP9706887 U JP 9706887U JP S643101 U JPS643101 U JP S643101U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- pressure
- cylinder
- control valve
- speed control
- 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.)
- Granted
Links
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の実施例を示す油圧回路構成図
、第２図は同実施例における速度制御弁の具体構
成を示す断面図である。
２…シリンダ、２ａ…同シリンダのロツド側油
室、３…コントロールバルブ、４…縮小側管路、
５…速度制御弁、１２…同弁のスプール、１３…
絞り、１４…同第１圧力室、２０…第２圧力室、
ａ１，ａ２…流量制御位置、ｂ…非制御位置。
FIG. 1 is a hydraulic circuit configuration diagram showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a specific configuration of a speed control valve in the same embodiment. 2...Cylinder, 2a...Rod side oil chamber of the same cylinder, 3...Control valve, 4...Reduction side pipe line,
5...Speed control valve, 12...Spool of the same valve, 13...
Throttle, 14...first pressure chamber, 20...second pressure chamber,
a1 , a2 ...flow control position, b...non-control position.
Claims (1)
ルブとシリンダのロツド側油室とを結ぶ管路中に
速度制御弁が設けられ、この速度制御弁は、上記
コントロールバルブ側のポートの圧力が導入され
る第１圧力室とこの第１圧力室と絞りを介して連
通し第１圧力室に対抗する圧力が作用する第２圧
力室とを有し、この両圧力室の圧力の差に応じて
、上記シリンダのロツド側油室に対する供給油量
を絞つて一定に制御する状態と、供給油量を制御
しない状態とに切換わり作動するように構成され
、かつ、この速度制御弁の上記第２圧力室とタン
クとの間に、これら第２圧力室とタンクとを連通
させる位置とこの連通を遮断する位置とに切換操
作される開閉弁が設けられてなることを特徴とす
るシリンダ速度制御装置。 A speed control valve is provided in a pipe connecting a control valve that selects expansion/contraction operation of the cylinder and an oil chamber on the rod side of the cylinder. It has a pressure chamber and a second pressure chamber that communicates with the first pressure chamber via a throttle and receives pressure opposing the first pressure chamber, and the pressure of the cylinder is adjusted according to the difference in pressure between the two pressure chambers. The speed control valve is configured to operate by switching between a state in which the amount of oil supplied to the rod side oil chamber is throttled and controlled to a constant state and a state in which the amount of oil supplied is not controlled, and the speed control valve is connected to the second pressure chamber and the tank. A cylinder speed control device characterized in that an on-off valve is provided between the second pressure chamber and the tank and is operated to switch between a position for communicating the second pressure chamber and the tank and a position for cutting off the communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9706887U JPH047369Y2 (en) | 1987-06-24 | 1987-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9706887U JPH047369Y2 (en) | 1987-06-24 | 1987-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS643101U true JPS643101U (en) | 1989-01-10 |
| JPH047369Y2 JPH047369Y2 (en) | 1992-02-27 |
Family
ID=31322279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9706887U Expired JPH047369Y2 (en) | 1987-06-24 | 1987-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047369Y2 (en) |
-
1987
- 1987-06-24 JP JP9706887U patent/JPH047369Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH047369Y2 (en) | 1992-02-27 |