WO2001038733A1 - Dispositif de coulissement - Google Patents
Dispositif de coulissement Download PDFInfo
- Publication number
- WO2001038733A1 WO2001038733A1 PCT/JP2000/008268 JP0008268W WO0138733A1 WO 2001038733 A1 WO2001038733 A1 WO 2001038733A1 JP 0008268 W JP0008268 W JP 0008268W WO 0138733 A1 WO0138733 A1 WO 0138733A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hemispherical
- sliding
- hemisphere
- sliding device
- sliding contact
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
- F04B27/0878—Pistons
- F04B27/0886—Piston shoes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0403—Refractory metals, e.g. V, W
- F05C2201/0409—Molybdenum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Definitions
- the present invention relates to a sliding device provided with a hemispherical shoe, and more particularly to a sliding device suitable as, for example, a piston in a swash plate type compressor and a hemispherical shoe interposed therebetween.
- a hemispherical shroud there is known a hemispherical shroud in which a top side is cut out in a direction orthogonal to the axis and a flat surface is formed there (see, for example, Japanese Patent Application Laid-Open No. 57-76281). Gazette, Jpn.
- a space is formed between the hemispherical recess and the flat surface on the top side of the hemispherical shoe in a state where the hemispherical surface of the hemispherical shoe is fitted into the hemispherical recess of the piston.
- the lubricating oil is stored in the space.
- the present invention provides a first movable member having a hemispherical concave portion, a second movable member having a flat surface, a hemispherical surface fitted into the hemispherical concave portion of the first movable member, and the second movable member.
- a hemispherical surface is formed with a sliding contact portion that is in sliding contact with the hemispherical concave portion between the top portion and the end surface of the hemispherical surface.
- a gap is formed between the drawn-in portion and the hemispherical concave portion facing the drawn-in portion so that the top side of the hemispherical surface gradually increases.
- the gap is formed between the drawn-in portion and the hemispherical concave portion facing the drawn-in portion, so that the lubrication stored in the space between the hemispherical concave portion and the portion on the top side of the shoe is formed. Oil will be introduced into the sliding contact portion through the gap. Therefore, it is possible to provide a sliding device having better sliding characteristics than the conventional one.
- FIG. 1 is a cross-sectional view showing an embodiment of the present invention
- FIG. 2 is an enlarged cross-sectional view of the hemispherical shroud shown in FIG. 1
- FIG. 3 is a hemispherical shroud when the swash plate type compressor shown in FIG. 1 is operated.
- FIG. 4 is a cross-sectional view showing a conventional hemispherical shell
- FIG. 5 is a front view showing a second embodiment of the present invention
- FIG. 6 is a cross-sectional view showing a third embodiment of the present invention.
- FIGS. 1 and 2 show an embodiment in which the sliding device of the present invention is applied to a swash plate compressor. That is, the swash plate compressor includes a hemispherical shoe 1, a piston 2 reciprocated in the vertical direction in the drawing, and a flat swash plate 3 rotated by a rotating shaft. Up A hemispherical concave portion 2B is formed on the end surface 2A of the piston 2. In this embodiment, in forming the hemispherical concave portion 2B, the entire area is made to have the same curvature.
- the hemispherical shroud 1 includes a hemispherical hemisphere 1A and a smooth end surface 1B.
- the top part of the hemisphere 1 A in the axial direction (upper side in Fig. 1) is slightly notched so as to be orthogonal to the axis C, and a shallow circular-arc-shaped recess 1 C is formed in that part. Has formed.
- a substantially conical hole 1D is also formed at the shaft (center) of the end face 1B.
- the depth of the recess 1C on the top side described above is set to about one third of the depth of the hole 1D in the shaft of the end face 1B.
- the hemispherical surface 1 A is fitted into the hemispherical concave portion 2 B of the piston 2, and the end surface 1 B is in contact with the swash plate 3.
- the hemispherical shell 1 interposed between the hemispherical concave portion 2B and the swash plate 3 has a hemispherical surface 1A which is closer to the boundary 1E between the hemispherical surface 1A and the end surface 1B. Is exposed in the space between the end face 2 A of the piston 2 and the swash plate 3.
- a space 4 is formed by the recess 1C and the hemispherical recess 2B of the piston 2, and a space 5 is formed by the hole 1D and the swash plate 3. These spaces 4 and 5 function as chambers for temporarily storing lubricating oil.
- the piston 2 reciprocates via the hemispherical shroud 1.
- the end surface 1B of the hemispherical housing 1 slides on the swash plate 3, and the hemispherical surface 1A slides on the hemispherical recess 2B.
- the lubricating oil stored in the space portions 4 and 5 penetrates into the sliding contact portion between the hemispherical surface 1A and the end surface 1B to lubricate and cool the portion.
- the diameter D 2 of 1b is different. That is, in the hemispherical housing 1 of the present embodiment, the entire area of the hemispherical surface 1A does not slide with the hemispherical concave portion 2A, but is placed between the end face 1C and the concave portion 1C on the top side.
- An annular region near the concave portion 1C is a sliding contact portion 1a that is in sliding contact with the hemispherical concave portion 2A.
- the annular area on the hemispherical surface 1A that is on the top side (concave section 1C side) of the sliding contact portion 1a is defined as the retracted portion 1b, and is further on the end surface 1B side than the sliding contact portion 1a. Is a non-sliding contact portion 1d that does not slide with the hemispherical concave portion 2A.
- the spherical diameter D2 of the retracted portion 1b in the hemispherical surface 1A is larger than the spherical diameter D1 of the sliding contact portion 1a in the hemispherical surface 1A.
- a gap 8 is formed between the retracted portion 1b and the hemispherical concave portion 2A of the piston 2 facing the retracted portion 1b, in which the top side (the concave portion 1C side) gradually expands. 1).
- the size of each part is adjusted so that the maximum dimension of the gap 8 is 5 to 500 tm.
- the lubricating oil stored in the space 4 formed between the hemispherical concave portion 2B and the concave portion 1C of the hemispherical housing 1 is directed to the sliding contact portion 1a via the gap 8 described above. Introduced smoothly.
- the ball diameter D3 of the non-sliding portion 1d on the end surface 1B side is smaller than the ball diameter D1 of the sliding portion 1a.
- a gap 9 is formed between the non-sliding portion 1d and the hemispherical concave portion 2B of the piston 2 facing the non-sliding portion 1d, in which the end face 1B side gradually increases.
- the lubricating oil interposed in the sliding portion 1a is easily discharged to the end face 1B through the gap 9.
- the surface of the sliding portion 1a of the hemisphere 1A may be covered with a resin film containing Mo 2 , Gr, or the like. Alternatively, it may be coated with a film of a resin such as M o S 2, G r from subjected to soft nitriding treatment on the surface of the sliding contact portion 1 a of the hemispherical surface 1 A. Further, the surface of the sliding contact portion 1a of the hemispherical surface 1A is coated with a hard coating layer made of one of DLC (amorphous carbon film), Ni-P-based plating, and Ni-B-based plating. Cover Is also good. By covering the surface of the sliding contact portion 1a in this way, it is possible to prevent seizure of the sliding contact portion la.
- DLC amorphous carbon film
- Ni-P-based plating Ni-B-based plating
- the end face 1B of the hemispherical shroud 1 causes the area on the shaft side (hole 1D side) to bulge toward the swash plate 3 side from the boundary 1E which is the outer peripheral edge. ing.
- An area formed of a flat surface located on the shaft portion side is defined as a sliding contact portion 1F that is in sliding contact with the swash plate 3.
- a region extending from the outer edge 1F 'of the sliding contact portion 1F to the boundary 1E has a gentle arc shape in cross section, and this region does not slide on the swash plate 3.
- the sliding part is 1 G.
- the outer edge 1F ′ of the sliding portion 1F is formed on the top side of the sliding portion 1a of the hemispherical surface 1A.
- the la portion la 'of the (recess 1C side) is located closer to the axis C than the distance R (radius) separated from the axis C (Fig. 2).
- the axial distance between the sliding portion 1F and the boundary portion 1E ie, the swelling amount of the sliding portion 1F
- the sliding portion 1F is In the present embodiment, when the axial distance between the point X and the point X is C2, C2ZC1 ⁇ 0.3 is set.
- the shaft portion side (sliding portion 1F) of the end surface 1B is bulged more than the boundary portion 1E which is the outer peripheral edge by the above-described dimension setting.
- part of the sliding contact portion 1a of the hemispherical surface 1A is exposed to the space between the end face 2A of the piston 2 and the swash plate 3, and The lubricating oil is guided to the sliding contact portion between the sliding contact portion 1a and the hemispherical concave portion 2B by a part of the sliding contact portion 1a.
- the hemispherical shroud 1 of the present embodiment is configured such that the ball diameter D 2 of the retracted portion lb is larger than the ball diameter D 1 of the sliding contact portion 1a, and the hemispherical shroud 1 is
- the above-mentioned gap 8 is formed when fitted into the hemispherical concave portion 2B. Therefore, the lubricating oil stored in the space 4 between the concave portion 1C of the hemispherical housing 1 and the hemispherical concave portion 2B of the piston 2 slides through the gap 8 as shown by the arrow in FIG. Introduced smoothly to contact 1a. Therefore, the sliding characteristics of the hemispherical shoe 1 can be improved as compared with the conventional case.
- Fig. 4 shows a conventional hemispherical show 1.
- a flat surface 1C is formed by notching the top side of the hemispherical surface 1A, and a region 1b close to the flat surface 1C in the hemispherical surface 1A and adjacent thereto.
- the ball diameters Dl and D2 of the sliding contact portion 1a are the same. Therefore, a gap is hardly formed substantially between the region 1b of the hemispheric surface 1A close to the flat surface 1C and the hemispherical concave portion 2B of the piston 2.
- the top of the hemispherical housing 1 has a notched flat surface 1C in the related art, so that there is a disadvantage that the amount of lubricating oil that can be stored in the space 4 is small. there were.
- a concave portion 1C is formed at the top of the hemispherical shroud 11. Therefore, the volume of the space portion 4 formed between the concave portion 1C and the hemispherical concave portion 2B of the piston 2 can be made larger than before, and the storage portion can be stored there. The amount of lubricating oil that can be cut can be increased as compared with the conventional case. Therefore, the sliding characteristics of the hemispherical shoe 1 can be further improved.
- the shaft portion side (sliding contact sound [51F]) of the end face 1B is bulged more than the outer peripheral side (non-sliding contact portion 1G) by the above-described dimension setting.
- FIG. 5 shows a second embodiment relating to the hemispherical housing 1.
- the hole 1D on the end face 1B side in the hemispherical shroud 11 of the first embodiment is omitted.
- Other configurations are the same as those in the first embodiment. Even with such a configuration of the second embodiment, the same operation and effect as those of the first embodiment can be obtained.
- FIG. 6 shows a third embodiment of the present invention. While each of the above-described embodiments is an improvement of the hemispherical shoe 1, the third embodiment is an improvement of the piston 2 side.
- the sliding contact portion 1a and the top-side retracted portion 1b of the hemispherical surface 1A of the hemispherical shroud 1 have the same spherical diameter as the conventional hemispherical shroud 1 shown in FIG.
- the ball diameter D 1 of the portion of the hemispherical concave portion 2 of the piston 2 that comes into sliding contact with the sliding portion 1 a is larger than the ball diameter D 2 of the portion of the hemispherical concave portion 2 that faces the drawing portion 1 b. Is also bigger.
- the hemispherical recess 2 as the spherical diameter D 2, it between the retracted portion 1 b of the opposing hemisphere 1 A, t the same gap 8 in the case of the first embodiment is formed Therefore, even in the configuration of the third embodiment, since the lubricating oil stored in the space 4 is introduced into the sliding portion 1a through the gap 8, the hemispherical shroud 1 And the sliding characteristics of BISTON 2 can be improved as compared with the conventional case.
- the sliding device of the present invention is applied to a piston, a hemispherical shoe, and a swash plate of a swash plate type compressor has been described. it can. Further, the sliding device of the present invention can also be used for a mechanical component having a hemispherical concave portion, in which a hemispherical shoe is fitted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Compressor (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/889,708 US6644172B1 (en) | 1999-11-26 | 2000-11-24 | Sliding device |
BRPI0007617-1A BR0007617B1 (pt) | 1999-11-26 | 2000-11-24 | sistema de deslizamento. |
HU0200153A HU222947B1 (hu) | 1999-11-26 | 2000-11-24 | Sikló mozgatórendszer |
EP00977889A EP1148237B1 (en) | 1999-11-26 | 2000-11-24 | Sliding device |
DE60044181T DE60044181D1 (de) | 1999-11-26 | 2000-11-24 | Gleitvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33561099A JP3298571B2 (ja) | 1999-11-26 | 1999-11-26 | 摺動装置 |
JP11/335610 | 1999-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001038733A1 true WO2001038733A1 (fr) | 2001-05-31 |
Family
ID=18290522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/008268 WO2001038733A1 (fr) | 1999-11-26 | 2000-11-24 | Dispositif de coulissement |
Country Status (9)
Country | Link |
---|---|
US (1) | US6644172B1 (ja) |
EP (1) | EP1148237B1 (ja) |
JP (1) | JP3298571B2 (ja) |
KR (1) | KR100444424B1 (ja) |
CN (1) | CN1115481C (ja) |
BR (1) | BR0007617B1 (ja) |
DE (1) | DE60044181D1 (ja) |
HU (1) | HU222947B1 (ja) |
WO (1) | WO2001038733A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100926405B1 (ko) * | 2003-04-17 | 2009-11-12 | 가부시키가이샤 발레오 서멀 시스템즈 | 경사판식 압축기 |
JP3925730B2 (ja) * | 2004-12-28 | 2007-06-06 | 大豊工業株式会社 | シュー |
EP1750009B1 (en) * | 2005-08-05 | 2019-07-03 | Poclain Hydraulics | A spherical joint of a hydrostatic piston machine |
DE102006008437A1 (de) * | 2006-02-23 | 2007-10-04 | Schaeffler Kg | Gleitschuh für ein Taumelscheibengetriebe |
WO2007142958A2 (en) * | 2006-05-31 | 2007-12-13 | Ggb, Inc. | Plastic shoes for compressors |
WO2008014736A1 (de) * | 2006-07-29 | 2008-02-07 | Ixetic Mac Gmbh | Vorrichtung zum ankoppeln eines kolbens an eine ringscheibe |
JP5033432B2 (ja) * | 2007-01-30 | 2012-09-26 | 株式会社豊田自動織機 | 摺動部品 |
DE102007012869A1 (de) * | 2007-03-17 | 2008-09-18 | Schaeffler Kg | Taumelscheibengetriebe, insbesondere für einen Axialkolbenkompressor |
KR101348854B1 (ko) * | 2007-08-28 | 2014-01-15 | 한라비스테온공조 주식회사 | 압축기 |
JP5259526B2 (ja) * | 2009-08-18 | 2013-08-07 | 内藤 秀一 | 斜板式圧縮機用シュー |
JP5518650B2 (ja) * | 2010-09-13 | 2014-06-11 | 内藤 秀一 | 斜板式圧縮機用シュー |
CN102141028A (zh) * | 2011-02-12 | 2011-08-03 | 上海光裕汽车空调压缩机有限公司 | 双向斜板式压缩机的滑履结构 |
EP3173622B1 (en) * | 2014-07-23 | 2021-11-17 | NTN Corporation | Semispherical shoe for swash plate compressor, and swash plate compressor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09280166A (ja) * | 1996-04-09 | 1997-10-28 | Riken Corp | 斜板式圧縮機用シュー |
JPH1150960A (ja) * | 1997-08-01 | 1999-02-23 | Ntn Corp | 斜板式コンプレッサ用シュー及びその組込み構造 |
JPH11159457A (ja) * | 1997-11-28 | 1999-06-15 | Sanden Corp | 斜板式コンプレッサー用シュー及び斜板式コンプレッサー用ピストンジョイント |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53129311A (en) * | 1977-04-19 | 1978-11-11 | Toyoda Autom Loom Works Ltd | Shoe for swash plate type compressor |
US4568252A (en) * | 1980-03-07 | 1986-02-04 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash-plate type compressor |
WO1981002767A1 (en) * | 1980-03-28 | 1981-10-01 | Taiho Kogyo Co Ltd | Shoe for swash plate type compressor and method for manufacturing the same |
JPS6026188A (ja) * | 1983-07-20 | 1985-02-09 | Taiho Kogyo Co Ltd | 斜板式コンプレツサ |
JPH075259Y2 (ja) * | 1986-07-01 | 1995-02-08 | 株式会社豊田自動織機製作所 | 斜板式圧縮機におけるピストンとシューの係合構造 |
JP3588725B2 (ja) * | 1993-09-10 | 2004-11-17 | 株式会社ゼクセルヴァレオクライメートコントロール | 斜板式圧縮機の摺動構造 |
JP3642077B2 (ja) * | 1995-01-27 | 2005-04-27 | 大豊工業株式会社 | 斜板式コンプレッサーの斜板 |
JP3039762B2 (ja) * | 1995-03-07 | 2000-05-08 | 株式会社豊田自動織機製作所 | 往復動型圧縮機 |
JPH1122640A (ja) * | 1997-07-08 | 1999-01-26 | Riken Corp | 斜板式圧縮機用シュー |
US6024010A (en) * | 1997-08-01 | 2000-02-15 | Ntn Corporation | Shoe for swash plate type compressor and shoe assembly |
JP2000018153A (ja) * | 1998-06-30 | 2000-01-18 | Sanden Corp | 斜板式圧縮機 |
JP4149056B2 (ja) * | 1998-12-10 | 2008-09-10 | Ntn株式会社 | 斜板式コンプレッサの軸受装置 |
-
1999
- 1999-11-26 JP JP33561099A patent/JP3298571B2/ja not_active Expired - Lifetime
-
2000
- 2000-11-24 CN CN00803152A patent/CN1115481C/zh not_active Expired - Lifetime
- 2000-11-24 HU HU0200153A patent/HU222947B1/hu not_active IP Right Cessation
- 2000-11-24 EP EP00977889A patent/EP1148237B1/en not_active Expired - Lifetime
- 2000-11-24 WO PCT/JP2000/008268 patent/WO2001038733A1/ja active IP Right Grant
- 2000-11-24 DE DE60044181T patent/DE60044181D1/de not_active Expired - Lifetime
- 2000-11-24 KR KR10-2001-7009279A patent/KR100444424B1/ko active IP Right Grant
- 2000-11-24 US US09/889,708 patent/US6644172B1/en not_active Expired - Lifetime
- 2000-11-24 BR BRPI0007617-1A patent/BR0007617B1/pt not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09280166A (ja) * | 1996-04-09 | 1997-10-28 | Riken Corp | 斜板式圧縮機用シュー |
JPH1150960A (ja) * | 1997-08-01 | 1999-02-23 | Ntn Corp | 斜板式コンプレッサ用シュー及びその組込み構造 |
JPH11159457A (ja) * | 1997-11-28 | 1999-06-15 | Sanden Corp | 斜板式コンプレッサー用シュー及び斜板式コンプレッサー用ピストンジョイント |
Non-Patent Citations (1)
Title |
---|
See also references of EP1148237A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1148237B1 (en) | 2010-04-14 |
JP2001153040A (ja) | 2001-06-05 |
US6644172B1 (en) | 2003-11-11 |
JP3298571B2 (ja) | 2002-07-02 |
DE60044181D1 (de) | 2010-05-27 |
BR0007617B1 (pt) | 2008-11-18 |
HU222947B1 (hu) | 2004-01-28 |
HUP0200153A2 (en) | 2002-05-29 |
KR100444424B1 (ko) | 2004-08-16 |
BR0007617A (pt) | 2001-10-16 |
CN1115481C (zh) | 2003-07-23 |
KR20010108123A (ko) | 2001-12-07 |
EP1148237A1 (en) | 2001-10-24 |
EP1148237A4 (en) | 2006-05-24 |
CN1338028A (zh) | 2002-02-27 |
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