JPS6336703U - - Google Patents
Info
- Publication number
- JPS6336703U JPS6336703U JP13056686U JP13056686U JPS6336703U JP S6336703 U JPS6336703 U JP S6336703U JP 13056686 U JP13056686 U JP 13056686U JP 13056686 U JP13056686 U JP 13056686U JP S6336703 U JPS6336703 U JP S6336703U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- valve
- spring chamber
- pilot
- connects
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第１図及び第２図はそれぞれ本考案の実施例の
油圧回路図、第３図は従来装置の油圧回路図であ
る。
１……油圧ポンプ、２……供給管路、７……絞
り弁、８……リリーフ弁（電磁比例リリーフ弁）
、９……パイロツトライン、１０……サーボシリ
ンダ、１１……パイロツト弁、１１ｂ……ばね室
、１２……パイロツト切換弁、１３……安全弁。
1 and 2 are hydraulic circuit diagrams of an embodiment of the present invention, and FIG. 3 is a hydraulic circuit diagram of a conventional device. 1... Hydraulic pump, 2... Supply pipe line, 7... Throttle valve, 8... Relief valve (electromagnetic proportional relief valve)
, 9...Pilot line, 10...Servo cylinder, 11...Pilot valve, 11b...Spring chamber, 12...Pilot switching valve, 13...Safety valve.
Claims (1)
応型油圧ポンプにウオーミングアツプ機能を付加
した流量制御回路において、油圧ポンプのサーボ
シリンダを制御するパイロツト弁のばね室と油圧
ポンプに接続する供給管路に絞り弁を介して連通
するリリーフ弁の１次側とを接続したパイロツト
ラインに、定常位置において前記リリーフ弁の１
次側と前記ばね室とを接続し、切換位置において
前記ばね室にポンプ吐出圧を導くパイロツト切換
弁を配設したことを特徴とする負荷感応型油圧ポ
ンプの流量制御回路。 In a flow control circuit in which a warming-up function is added to a load-sensitive hydraulic pump equipped with a flow control function and a pressure control function, the spring chamber of the pilot valve that controls the servo cylinder of the hydraulic pump and the supply pipe line that connects to the hydraulic pump. One of the relief valves in the normal position is connected to the pilot line connecting the primary side of the relief valve which communicates with the first side of the relief valve through the throttle valve.
1. A flow rate control circuit for a load-sensitive hydraulic pump, characterized in that a pilot switching valve is provided that connects the next side and the spring chamber and guides pump discharge pressure to the spring chamber at a switching position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13056686U JPS6336703U (en) | 1986-08-27 | 1986-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13056686U JPS6336703U (en) | 1986-08-27 | 1986-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6336703U true JPS6336703U (en) | 1988-03-09 |
Family
ID=31028186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13056686U Pending JPS6336703U (en) | 1986-08-27 | 1986-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6336703U (en) |
-
1986
- 1986-08-27 JP JP13056686U patent/JPS6336703U/ja active Pending