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
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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
Application number
JP2009246508A
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Japanese (ja)
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JP2011094490A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2009246508A priority Critical patent/JP2011094490A/en
Priority claimed from JP2009246508A external-priority patent/JP2011094490A/en
Priority to EP10826644A priority patent/EP2495441A1/en
Priority to PCT/JP2010/068736 priority patent/WO2011052512A1/en
Priority to US13/504,346 priority patent/US20120213656A1/en
Priority to CN2010800482127A priority patent/CN102713285A/en
Priority to KR1020127010754A priority patent/KR20120106726A/en
Publication of JP2011094490A publication Critical patent/JP2011094490A/en
Publication of JP2011094490A5 publication Critical patent/JP2011094490A5/ja
Pending legal-status Critical Current

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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.

第1実施形態に係るピストンシューの摺動面の構成図である。It is a block diagram of the sliding surface of the piston shoe which concerns on 1st Embodiment. 第1実施形態に係るピストンシューの図1A−B断面におけるピストンシュー斜板の配置及びピストンシュー斜板の間の圧力変化を示すグラフ図である。It is a graph which shows arrangement | positioning of the piston shoe and a swash plate in FIG. 1A-B cross section of the piston shoe which concerns on 1st Embodiment, and the pressure change between a piston shoe and a swash plate. 実施形態に係るアキシャルピストン型液圧回転機械の断面図である。It is sectional drawing of the axial piston type hydraulic rotary machine which concerns on embodiment. 第2実施形態に係るピストンシューの摺動面の構成図である。It is a block diagram of the sliding surface of the piston shoe which concerns on 2nd Embodiment. 従来例に係るピストンシューの摺動面の構成図である。It is a block diagram of the sliding surface of the piston shoe which concerns on a prior art example. 従来例に係るピストンシューの図5A−B断面におけるピストンシュー斜板の配置及びピストンシュー斜板の間の圧力変化を示すグラフ図である。It is a graph which shows arrangement | positioning of the piston shoe and a swash plate in the FIG. 5A-B cross section of the piston shoe which concerns on a prior art example, and the pressure change between a piston shoe and a swash plate. 実施形態に係るアキシャルピストン型液圧回転機械の起動から時間に対する回転速度の変化を従来品と比較して示すグラフ図である。It is a graph which shows the change of the rotational speed with respect to time after starting of the axial piston type hydraulic rotary machine which concerns on embodiment compared with a conventional product.

JP2009246508A 2009-10-27 2009-10-27 Axial piston type hydraulic rotary machine Pending JP2011094490A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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