JPH0352402U - - Google Patents
Info
- Publication number
- JPH0352402U JPH0352402U JP11204889U JP11204889U JPH0352402U JP H0352402 U JPH0352402 U JP H0352402U JP 11204889 U JP11204889 U JP 11204889U JP 11204889 U JP11204889 U JP 11204889U JP H0352402 U JPH0352402 U JP H0352402U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- discharge circuit
- control device
- load sensing
- valve
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は従来のロードセンシング装置を備えた
油圧駆動回路の線図、第２図は本考案の実施例の
線図、第３図は第２図の圧力補償付方向切換弁の
具体的断面図である。
１…可変容量ポンプ、２…吐出回路、３…油圧
アクチユエータ、５…圧力補償付方向切換弁、７
…吐出量制御装置、８…ロードセンシング回路、
９…負荷保持弁。
Fig. 1 is a diagram of a hydraulic drive circuit equipped with a conventional load sensing device, Fig. 2 is a diagram of an embodiment of the present invention, and Fig. 3 is a specific cross section of the pressure compensated directional control valve of Fig. 2. It is a diagram. DESCRIPTION OF SYMBOLS 1... Variable displacement pump, 2... Discharge circuit, 3... Hydraulic actuator, 5... Directional switching valve with pressure compensation, 7
...Discharge rate control device, 8...Load sensing circuit,
9...Load holding valve.
Claims (1)
る油圧アクチユエータを接続し、該吐出回路に該
油圧アクチユエータの作動を制御する圧力補償付
方向切換弁を設け、該可変容量ポンプに設けた吐
出量制御装置に、該吐出回路の該切換弁の前方の
圧力を導くロードセンシング回路を接続するよう
にしたものに於て、該圧力補償付方向切換弁のス
プールに、該切換弁のアクチユエータポートから
タンクポートヘブリードオフする絞りを設けたこ
とを特徴とするロードセンシング装置を備えた油
圧駆動回路における慣性制御装置。 ２ 前記吐出回路の圧力補償付方向切換弁の前方
に、前記油圧アクチユエータの作動保持機能を有
する負荷保持弁を設けたことを特徴とする請求項
１に記載のロードセンシング装置を備えた油圧駆
動回路における慣性制御装置。[Claims for Utility Model Registration] 1. A hydraulic actuator for driving an inertial body is connected to a discharge circuit of a variable displacement pump, and a pressure compensated directional valve for controlling the operation of the hydraulic actuator is provided in the discharge circuit, In a device in which a load sensing circuit that guides the pressure in front of the switching valve of the discharge circuit is connected to a discharge amount control device provided in the displacement pump, the spool of the directional switching valve with pressure compensation is An inertia control device in a hydraulic drive circuit equipped with a load sensing device, characterized in that a throttle is provided to bleed off from an actuator port of a switching valve to a tank port. 2. The hydraulic drive circuit equipped with a load sensing device according to claim 1, further comprising a load holding valve having a function of holding the operation of the hydraulic actuator in front of the pressure compensated directional switching valve of the discharge circuit. Inertial control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11204889U JPH0352402U (en) | 1989-09-27 | 1989-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11204889U JPH0352402U (en) | 1989-09-27 | 1989-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0352402U true JPH0352402U (en) | 1991-05-21 |
Family
ID=31660501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11204889U Pending JPH0352402U (en) | 1989-09-27 | 1989-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352402U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931658B2 (en) * | 1977-04-30 | 1984-08-03 | 株式会社東芝 | ventilation fan |
| JPS60260704A (en) * | 1984-06-08 | 1985-12-23 | Toshiba Mach Co Ltd | Oil pressure control system |
-
1989
- 1989-09-27 JP JP11204889U patent/JPH0352402U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931658B2 (en) * | 1977-04-30 | 1984-08-03 | 株式会社東芝 | ventilation fan |
| JPS60260704A (en) * | 1984-06-08 | 1985-12-23 | Toshiba Mach Co Ltd | Oil pressure control system |