JP2011094490A5 - - Google Patents
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- Publication number
- JP2011094490A5 JP2011094490A5 JP2009246508A JP2009246508A JP2011094490A5 JP 2011094490 A5 JP2011094490 A5 JP 2011094490A5 JP 2009246508 A JP2009246508 A JP 2009246508A JP 2009246508 A JP2009246508 A JP 2009246508A JP 2011094490 A5 JP2011094490 A5 JP 2011094490A5
- Authority
- JP
- Japan
- Prior art keywords
- piston
- piston shoe
- swash plate
- concerns
- shoe
- 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
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Description
アキシャルピストン型液圧回転機械のピストン端部に取り付けられるピストンシューと斜板との摺動面は、その中央部に静圧ポケット及びこれに連通する給油口が設けられた静圧軸受となっている。この構成により、給油口からピストンシューに供給された潤滑油の液圧は、ピストンからの押し付け力とバランスして、適正な厚みの油膜がピストンシューと斜板の間に形成され、ピストンシューは斜板と接触することなく円滑に摺動することができる。しかし、特に可変容量型斜板式の液圧回転機械では、斜板の傾転角が変化すると、ピストンからの押し付け力の水平及び垂直成分が変化して、ピストンシューが斜板と接触する場合があり、ピストンシューに摩耗を生じやすいという課題があった。 The sliding surface of the piston shoe and the swash plate attached to the piston end of the axial piston type hydraulic rotary machine is a hydrostatic bearing in which a hydrostatic pocket and an oil supply port communicating therewith are provided at the center. Yes. With this configuration, the hydraulic pressure of the lubricating oil supplied from the oil supply port to the piston shoe is balanced with the pressing force from the piston, and an oil film with an appropriate thickness is formed between the piston shoe and the swash plate. It can slide smoothly without contacting. However, especially in variable displacement swash plate type hydraulic rotating machines, when the tilt angle of the swash plate changes, the horizontal and vertical components of the pressing force from the piston change, and the piston shoe may come into contact with the swash plate. There is a problem that the piston shoe is easily worn.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009246508A JP2011094490A (en) | 2009-10-27 | 2009-10-27 | Axial piston type hydraulic rotary machine |
EP10826644A EP2495441A1 (en) | 2009-10-27 | 2010-10-22 | Axial piston hydraulic rotating machine |
PCT/JP2010/068736 WO2011052512A1 (en) | 2009-10-27 | 2010-10-22 | Axial piston hydraulic rotating machine |
US13/504,346 US20120213656A1 (en) | 2009-10-27 | 2010-10-22 | Axial piston hydraulic rotating machine |
CN2010800482127A CN102713285A (en) | 2009-10-27 | 2010-10-22 | Axial piston hydraulic rotating machine |
KR1020127010754A KR20120106726A (en) | 2009-10-27 | 2010-10-22 | Axial piston hydraulic rotating machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009246508A JP2011094490A (en) | 2009-10-27 | 2009-10-27 | Axial piston type hydraulic rotary machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011094490A JP2011094490A (en) | 2011-05-12 |
JP2011094490A5 true JP2011094490A5 (en) | 2012-01-26 |
Family
ID=43921934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009246508A Pending JP2011094490A (en) | 2009-10-27 | 2009-10-27 | Axial piston type hydraulic rotary machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120213656A1 (en) |
EP (1) | EP2495441A1 (en) |
JP (1) | JP2011094490A (en) |
KR (1) | KR20120106726A (en) |
CN (1) | CN102713285A (en) |
WO (1) | WO2011052512A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6246582B2 (en) * | 2013-12-16 | 2017-12-13 | 日立建機株式会社 | Hydraulic rotating machine |
JP6275502B2 (en) * | 2014-02-12 | 2018-02-07 | 川崎重工業株式会社 | Hydraulic rotating device shoe and hydraulic rotating device |
EP3109468B1 (en) * | 2015-06-26 | 2022-06-29 | Danfoss A/S | Hydraulic machine |
ES2731358T3 (en) | 2015-06-26 | 2019-11-15 | Danfoss As | Hydraulic machine layout |
EP3109473B1 (en) | 2015-06-26 | 2021-03-10 | Danfoss A/S | Vane cell machine |
DE102020203679A1 (en) | 2020-03-23 | 2021-09-23 | Robert Bosch Gesellschaft mit beschränkter Haftung | Slide shoe for a piston of an axial piston machine |
CN113586382B (en) * | 2021-08-23 | 2022-11-08 | 苏州力源液压有限公司 | Eccentric wear eliminating method for oil distribution disc of high-pressure plunger variable pump |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB983310A (en) * | 1962-01-29 | 1965-02-17 | Hans Thoma | Improvements in or relating to swash plate or like pumps or motors |
JPS4842103U (en) * | 1971-09-20 | 1973-05-30 | ||
JPS5842103U (en) * | 1981-09-17 | 1983-03-19 | 中国文化実業株式会社 | T-shorts for Japanese clothing |
JPS648366A (en) * | 1987-06-29 | 1989-01-12 | Mitsubishi Heavy Ind Ltd | Piston pump-motor |
JPH01105095A (en) | 1987-10-15 | 1989-04-21 | Mitsubishi Heavy Ind Ltd | Leaking fluid sensing heat-insulating material and manufacture thereof |
JPH021476U (en) * | 1988-06-13 | 1990-01-08 | ||
JP3703610B2 (en) * | 1997-08-06 | 2005-10-05 | カヤバ工業株式会社 | Axial piston pump or motor |
JP2000018151A (en) * | 1998-07-02 | 2000-01-18 | Honda Motor Co Ltd | Hydraulic equipment of axial plunger type |
JP2001263218A (en) * | 2000-03-14 | 2001-09-26 | Hitachi Constr Mach Co Ltd | Hydraulic rotating machine |
JP4427211B2 (en) * | 2001-05-16 | 2010-03-03 | ヤンマー株式会社 | Structure of valve plate |
-
2009
- 2009-10-27 JP JP2009246508A patent/JP2011094490A/en active Pending
-
2010
- 2010-10-22 CN CN2010800482127A patent/CN102713285A/en active Pending
- 2010-10-22 US US13/504,346 patent/US20120213656A1/en not_active Abandoned
- 2010-10-22 KR KR1020127010754A patent/KR20120106726A/en not_active Application Discontinuation
- 2010-10-22 WO PCT/JP2010/068736 patent/WO2011052512A1/en active Application Filing
- 2010-10-22 EP EP10826644A patent/EP2495441A1/en not_active Withdrawn
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