JPH01166162U - - Google Patents
Info
- Publication number
- JPH01166162U JPH01166162U JP5599688U JP5599688U JPH01166162U JP H01166162 U JPH01166162 U JP H01166162U JP 5599688 U JP5599688 U JP 5599688U JP 5599688 U JP5599688 U JP 5599688U JP H01166162 U JPH01166162 U JP H01166162U
- Authority
- JP
- Japan
- Prior art keywords
- unload valve
- start pressure
- main circuits
- hydraulic
- relief start
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Fluid Gearings (AREA)
Description
第1図は本考案の実施例を示す回路図、第2図
は回転数の差と圧力コントロール信号の関係を示
す図表、第3図は圧力コントロール信号とリリー
フ開始圧力の関係を示す図表、第4図は従来の回
路図である。
1は油圧ポンプ、2は油圧モータ、3は第1主
回路、4は第2主回路、12,13は第1、第2
アンロード弁。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a chart showing the relationship between the rotation speed difference and the pressure control signal, and Fig. 3 is a chart showing the relationship between the pressure control signal and the relief start pressure. FIG. 4 is a conventional circuit diagram. 1 is a hydraulic pump, 2 is a hydraulic motor, 3 is a first main circuit, 4 is a second main circuit, 12 and 13 are first and second
Unload valve.
Claims (1)
路3,4で閉回路接続し、その第1、第2主回路
3,4を、リリーフ開始圧力を任意に設定できる
アンロード弁を介して短絡すると共に、このアン
ロード弁のリリーフ開始圧力を速度コントロール
信号に基づいて設定するようにしたことを特徴と
する油圧駆動装置。 The hydraulic pump 1 and the hydraulic motor 2 are connected in a closed circuit through first and second main circuits 3 and 4, and the first and second main circuits 3 and 4 are connected through an unload valve that can arbitrarily set the relief start pressure. A hydraulic drive device characterized in that the unload valve is short-circuited and the relief start pressure of the unload valve is set based on a speed control signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988055996U JPH07765Y2 (en) | 1988-04-27 | 1988-04-27 | Hydraulic drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988055996U JPH07765Y2 (en) | 1988-04-27 | 1988-04-27 | Hydraulic drive |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01166162U true JPH01166162U (en) | 1989-11-21 |
JPH07765Y2 JPH07765Y2 (en) | 1995-01-11 |
Family
ID=31281882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988055996U Expired - Lifetime JPH07765Y2 (en) | 1988-04-27 | 1988-04-27 | Hydraulic drive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07765Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018087898A1 (en) * | 2016-11-11 | 2018-05-17 | 株式会社小松製作所 | Working machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS574276U (en) * | 1980-06-07 | 1982-01-09 | ||
JPS601319U (en) * | 1983-06-18 | 1985-01-08 | 小沢 啓一 | lighted umbrella |
-
1988
- 1988-04-27 JP JP1988055996U patent/JPH07765Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS574276U (en) * | 1980-06-07 | 1982-01-09 | ||
JPS601319U (en) * | 1983-06-18 | 1985-01-08 | 小沢 啓一 | lighted umbrella |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018087898A1 (en) * | 2016-11-11 | 2018-05-17 | 株式会社小松製作所 | Working machine |
JP6335340B1 (en) * | 2016-11-11 | 2018-05-30 | 株式会社小松製作所 | Work machine |
Also Published As
Publication number | Publication date |
---|---|
JPH07765Y2 (en) | 1995-01-11 |
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