JPS6297302U - - Google Patents
Info
- Publication number
- JPS6297302U JPS6297302U JP18850785U JP18850785U JPS6297302U JP S6297302 U JPS6297302 U JP S6297302U JP 18850785 U JP18850785 U JP 18850785U JP 18850785 U JP18850785 U JP 18850785U JP S6297302 U JPS6297302 U JP S6297302U
- Authority
- JP
- Japan
- Prior art keywords
- oil motor
- circuit
- throttle
- pump
- pilot
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Details Of Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は従来例の線図、第２図は本考案の実施
例の線図である。
１……オイルモータ、２……戻り回路、３……
タンク、４……絞り、５……可変容量形油圧ポン
プ、６……ポンプ容量制御装置、９……パイロツ
ト回路、１３……パイロツト弁、１５……チエツ
ク弁。
FIG. 1 is a diagram of a conventional example, and FIG. 2 is a diagram of an embodiment of the present invention. 1...Oil motor, 2...Return circuit, 3...
Tank, 4... Throttle, 5... Variable displacement hydraulic pump, 6... Pump capacity control device, 9... Pilot circuit, 13... Pilot valve, 15... Check valve.
Claims (1)
を介在させ、該オイルモータに流量を供給する可
変容量形油圧ポンプのポンプ容量制御装置に該ポ
ンプの吐出圧を導いて該ポンプ容量を減少させる
パイロツト回路を設け、該パイロツト回路に該絞
りの前後の圧力差が設定値を越えると作動して該
パイロツト回路を開通させるパイロツト弁を介在
させ、該絞りとオイルモータの間の戻り回路をチ
エツク弁を介してオイルモータの１次側に接続し
て成る負荷変動の大きいオイルモータの駆動回路
装置。 A pilot circuit is provided in which a throttle is interposed in the return circuit returning from the oil motor to the tank, and the discharge pressure of the pump is guided to the pump displacement control device of the variable displacement hydraulic pump that supplies flow to the oil motor to reduce the pump displacement. A pilot valve is provided in the pilot circuit that operates to open the pilot circuit when the pressure difference before and after the throttle exceeds a set value, and a return circuit between the throttle and the oil motor is connected via a check valve. An oil motor drive circuit device that is connected to the primary side of the oil motor and is subject to large load fluctuations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18850785U JPH0414644Y2 (en) | 1985-12-09 | 1985-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18850785U JPH0414644Y2 (en) | 1985-12-09 | 1985-12-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6297302U true JPS6297302U (en) | 1987-06-20 |
| JPH0414644Y2 JPH0414644Y2 (en) | 1992-04-02 |
Family
ID=31139939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18850785U Expired JPH0414644Y2 (en) | 1985-12-09 | 1985-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0414644Y2 (en) |
-
1985
- 1985-12-09 JP JP18850785U patent/JPH0414644Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0414644Y2 (en) | 1992-04-02 |
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