JPH0484775U - - Google Patents
Info
- Publication number
- JPH0484775U JPH0484775U JP12899490U JP12899490U JPH0484775U JP H0484775 U JPH0484775 U JP H0484775U JP 12899490 U JP12899490 U JP 12899490U JP 12899490 U JP12899490 U JP 12899490U JP H0484775 U JPH0484775 U JP H0484775U
- Authority
- JP
- Japan
- Prior art keywords
- section
- hydraulic pump
- hydraulic
- switching valve
- servo amplifier
- 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 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す系統図である
。第２図は公知の油圧ポンプ駆動システムを示す
系統図である。
１……サーボアンプ部、２……油圧切換弁、３
……可変型オリフイス、４……容積式流量計、５
，６……圧力センサー、７……差圧発生用オリフ
イス、８……油圧ポンプユニツト、０１……流量
指令出力、０２……コントローラー部、０５……
油圧ポンプ部、０６……油圧シリンダー、０７…
…方向切換弁、０８，０９……タンク。
FIG. 1 is a system diagram showing an embodiment of the present invention. FIG. 2 is a system diagram showing a known hydraulic pump drive system. 1... Servo amplifier section, 2... Hydraulic switching valve, 3
...Variable orifice, 4...Positive flow meter, 5
, 6... Pressure sensor, 7... Orifice for generating differential pressure, 8... Hydraulic pump unit, 01... Flow rate command output, 02... Controller section, 05...
Hydraulic pump section, 06...Hydraulic cylinder, 07...
...Directional switching valve, 08,09...Tank.
Claims (1)
圧ポンプ部から吐出される油圧が方向切換弁を介
してアクチユエータに供給される油圧ポンプ駆動
システムにおいて、上記コントローラー部と上記
油圧ポンプ部とを接続するリード線に挿入され上
記流量指令出力を補償するサーボアンプ部と、上
記油圧ポンプ部と上記方向切換弁とを接続する管
路に挿入された油圧切換弁と、上記油圧切換弁と
タンクとを接続する管路に挿入された可変型オリ
フイスと、上記油圧ポンプ部と上記油圧切換弁と
を接続する管路に挿入され検出回転速度を上記サ
ーボアンプ部へフイードバツクする容積式流量計
及び又は圧力差を上記サーボアンプ部へフイード
バツクする圧力計付き差圧発生用オリフイスとを
具えたことを特徴とする油圧ポンプ駆動システム
。 In a hydraulic pump drive system in which hydraulic pressure discharged from a hydraulic pump section is supplied to an actuator via a directional control valve in response to a flow rate command output from a controller section, it is inserted into a lead wire that connects the controller section and the hydraulic pump section. a servo amplifier section that compensates for the flow rate command output, a hydraulic switching valve inserted in a pipe connecting the hydraulic pump section and the directional switching valve, and a pipe connecting the hydraulic switching valve and the tank. The inserted variable orifice, the positive displacement flowmeter inserted into the pipeline connecting the hydraulic pump section and the hydraulic switching valve and feeding back the detected rotational speed to the servo amplifier section, and/or the servo amplifier section to measure the pressure difference. A hydraulic pump drive system characterized by being equipped with an orifice for generating differential pressure with a pressure gauge that feeds back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12899490U JPH0484775U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12899490U JPH0484775U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0484775U true JPH0484775U (en) | 1992-07-23 |
Family
ID=31876425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12899490U Pending JPH0484775U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0484775U (en) |
-
1990
- 1990-11-30 JP JP12899490U patent/JPH0484775U/ja active Pending
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