JPS61197304U - - Google Patents
Info
- Publication number
- JPS61197304U JPS61197304U JP8000485U JP8000485U JPS61197304U JP S61197304 U JPS61197304 U JP S61197304U JP 8000485 U JP8000485 U JP 8000485U JP 8000485 U JP8000485 U JP 8000485U JP S61197304 U JPS61197304 U JP S61197304U
- Authority
- JP
- Japan
- Prior art keywords
- variable displacement
- displacement hydraulic
- pump
- control
- control pump
- 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 4
- 238000010586 diagram Methods 0.000 description 8
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Servomotors (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は回路図、第２図は操作レバーによる出
力信号の特性線図、第３図はコントローラの増幅
特性線図、第４図は電磁ソレノイドの特性線図、
第５図はリリーフバルブの構成を示す断面図、第
６図は操作レバーストロークとリリーフバルブセ
ツト圧の特性線図、第７図はコントロール用ポン
プの圧力―吐出量特性線図、第８図は操作弁を機
械的なリンクで操作するようにした例を示す構成
説明図である。
４，５は可変容量型油圧ポンプ、８，９は操作
弁、１９はコントロール用ポンプ、２１，２２は
操作レバー。
Fig. 1 is a circuit diagram, Fig. 2 is a characteristic diagram of the output signal from the operating lever, Fig. 3 is an amplification characteristic diagram of the controller, and Fig. 4 is a characteristic diagram of the electromagnetic solenoid.
Fig. 5 is a sectional view showing the configuration of the relief valve, Fig. 6 is a characteristic diagram of the operating lever stroke and relief valve set pressure, Fig. 7 is a pressure-discharge rate characteristic diagram of the control pump, and Fig. 8 is a characteristic diagram of the control pump pressure. FIG. 3 is a configuration explanatory diagram showing an example in which a control valve is operated by a mechanical link. 4 and 5 are variable displacement hydraulic pumps, 8 and 9 are operating valves, 19 is a control pump, and 21 and 22 are operating levers.
Claims (1)
油圧ポンプ４，４の突出油の流れ方向及び流量を
制御する操作弁８，９及びコントロール用ポンプ
１９をもつ制御回路において、操作弁８，９の操
作レバー２１，２２のストローク位置に応じてコ
ントロール用ポンプ１９のセツト圧を変更するよ
うにしたことを特徴とする可変容量型油圧ポンプ
のコントロール用ポンプの制御回路。 In a control circuit having variable displacement hydraulic pumps 4, 5, operation valves 8, 9 for controlling the flow direction and flow rate of oil protruding from the variable displacement hydraulic pumps 4, 4, and a control pump 19, the operation valves 8, 9 1. A control circuit for a control pump of a variable displacement hydraulic pump, characterized in that the set pressure of a control pump 19 is changed according to the stroke positions of operating levers 21 and 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8000485U JPS61197304U (en) | 1985-05-30 | 1985-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8000485U JPS61197304U (en) | 1985-05-30 | 1985-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61197304U true JPS61197304U (en) | 1986-12-09 |
Family
ID=30625446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8000485U Pending JPS61197304U (en) | 1985-05-30 | 1985-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61197304U (en) |
-
1985
- 1985-05-30 JP JP8000485U patent/JPS61197304U/ja active Pending
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