JP3922577B2 - 両回転形液圧ポンプ装置 - Google Patents
両回転形液圧ポンプ装置 Download PDFInfo
- Publication number
- JP3922577B2 JP3922577B2 JP2003274019A JP2003274019A JP3922577B2 JP 3922577 B2 JP3922577 B2 JP 3922577B2 JP 2003274019 A JP2003274019 A JP 2003274019A JP 2003274019 A JP2003274019 A JP 2003274019A JP 3922577 B2 JP3922577 B2 JP 3922577B2
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- JP
- Japan
- Prior art keywords
- pressure
- pump
- swash plate
- piston
- hydraulic 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.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Description
3 両回転形液圧ポンプ(斜板式二圧二流量可変容量型ピストンポンプ)
4 可変速モータ
5 制御装置
6 斜板
7 スプリング
8a、8b 圧力ピストン
9a、9b 二位置弁
10 タンク
21、31 両回転形液圧ポンプ装置
P 負荷圧力
P1 所定圧力
Claims (1)
- 相互に液体を吸入排出可能にされた一組の吸排口を有する両回転形液圧ポンプと、前記両回転形液圧ポンプを駆動する可変速モータと、前記可変速モータの回転方向及び回転数を制御し前記両回転形液圧ポンプの吸排出量を制御するようにされた制御装置と、を備えた両回転形液圧ポンプ装置であって、前記両回転形液圧ポンプは、斜板の傾転角の増減により一回転当たり吐出量が増減する斜板式可変容量型ピストンポンプであり、前記斜板の傾斜角を増す方向に付勢するスプリングと、を有しており、外部からの供給圧力を受けて前記斜板の傾斜角を減ずる方向へ付勢する圧力ピストンと、供給されるポンプの負荷圧力が所定圧力より高い時に前記圧力ピストンに前記負荷圧力を供給し、所定圧より低いときに前記圧力ピストン内の供給圧力をタンク側へ開放するようにされた二位置弁と、を一組として、二組設け、前記一組の吸排口のそれぞれから、前記二位置弁のそれぞれの組にポンプ負荷圧力を供給するようにされた二圧二流量可変ピストンポンプであることを特徴とする両回転形液圧ポンプ装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003274019A JP3922577B2 (ja) | 2003-07-14 | 2003-07-14 | 両回転形液圧ポンプ装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003274019A JP3922577B2 (ja) | 2003-07-14 | 2003-07-14 | 両回転形液圧ポンプ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005036870A JP2005036870A (ja) | 2005-02-10 |
JP3922577B2 true JP3922577B2 (ja) | 2007-05-30 |
Family
ID=34211095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003274019A Expired - Fee Related JP3922577B2 (ja) | 2003-07-14 | 2003-07-14 | 両回転形液圧ポンプ装置 |
Country Status (1)
Country | Link |
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JP (1) | JP3922577B2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008215504A (ja) * | 2007-03-05 | 2008-09-18 | Hitachi Constr Mach Co Ltd | 作業機械の油圧駆動装置 |
JP4365870B2 (ja) | 2007-03-30 | 2009-11-18 | 三菱重工業株式会社 | 流体圧アクチュエータ |
JP2009264525A (ja) | 2008-04-28 | 2009-11-12 | Nabtesco Corp | 作動流体供給装置及び電動アクチュエータ |
JP5689447B2 (ja) * | 2012-09-27 | 2015-03-25 | ナブテスコ株式会社 | 電動アクチュエータ |
JP6147021B2 (ja) * | 2013-02-22 | 2017-06-14 | 三菱重工業株式会社 | 流体圧ポンプ |
CN104728196B (zh) * | 2015-03-18 | 2017-08-25 | 北京航空航天大学 | 负载敏感的电动静液作动器 |
CN104747514A (zh) * | 2015-03-18 | 2015-07-01 | 北京航空航天大学 | 负载敏感的电动静液作动器 |
JP6704716B2 (ja) * | 2015-11-26 | 2020-06-03 | 株式会社モリタ環境テック | 切断処理装置及び切断処理装置の運転方法 |
JP6689683B2 (ja) * | 2016-06-17 | 2020-04-28 | 株式会社堀内機械 | 電動式の可変容量型両回転ポンプ |
JP6886381B2 (ja) * | 2017-09-29 | 2021-06-16 | 川崎重工業株式会社 | 液圧システム |
CN107795278B (zh) * | 2017-11-16 | 2023-08-01 | 恒天九五重工有限公司 | 桩机工作装置限速方法及液压限速*** |
-
2003
- 2003-07-14 JP JP2003274019A patent/JP3922577B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2005036870A (ja) | 2005-02-10 |
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