WO2017170954A1 - シュー及び当該シューを具備する斜板式コンプレッサー - Google Patents
シュー及び当該シューを具備する斜板式コンプレッサー Download PDFInfo
- Publication number
- WO2017170954A1 WO2017170954A1 PCT/JP2017/013447 JP2017013447W WO2017170954A1 WO 2017170954 A1 WO2017170954 A1 WO 2017170954A1 JP 2017013447 W JP2017013447 W JP 2017013447W WO 2017170954 A1 WO2017170954 A1 WO 2017170954A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- swash plate
- sliding surface
- shoe
- outer peripheral
- sliding
- Prior art date
Links
Images
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
- 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
- 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
- F04B27/10—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 having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
-
- 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
- F04B27/10—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 having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1054—Actuating elements
- F04B27/1072—Pivot mechanisms
-
- 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
- F04B27/10—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 having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/109—Lubrication
-
- 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
- F05C2253/20—Resin
Definitions
- Patent Document 1 describes a shoe (slider) used in a swash plate type compressor.
- the shoe comprises a spherical portion sliding with a recess provided in the piston and a flat portion sliding with the surface of the swash plate.
- the flat portion of the shoe is a smooth convex curved surface having a very large radius of curvature, the height of which is 15 ⁇ m or less, with the center as a vertex.
- the present invention has been made in view of the above circumstances, and the problem to be solved is to provide a shoe capable of suppressing deformation of a member to be slid.
- the shoe according to the present invention is formed so that the first sliding surface sliding on the concave curved surface of the first movable member and bulging to the opposite side to the first sliding surface, and the second movable member is flat.
- a second sliding surface that slides with the surface, and the second sliding surface is a curved outer peripheral portion provided along the outer periphery of the second sliding surface, and the second sliding And a central portion provided continuously with the outer peripheral portion at the center of the surface and having a radius of curvature larger than that of the outer peripheral portion.
- the central portion is formed to have a diameter of 5 mm or more and a bulging height of 3 ⁇ m or less.
- the swash plate type compressor according to the present invention comprises the shoe and the swash plate which is the second movable member and has a resin coating layer on the flat surface.
- the swash plate type compressor of the present invention even if the resin coating layer is formed on the flat surface of the swash plate, the deformation of the swash plate can be suppressed.
- the swash plate type compressor 1 is a swash plate type compressor used for, for example, an air conditioner for vehicles.
- the swash plate type compressor 1 mainly comprises a housing 10, a rotating shaft 20, a rotor 30, a swash plate 40, a piston 50, a shoe 200, a spring 70, a control valve 80 and a transmission mechanism 100.
- the housing 10 shown in FIG. 1 is formed in a substantially box shape. Inside the housing 10, a crank chamber 10a is provided. A cylinder block 11 is provided at the front and rear midway portion of the housing 10.
- a cylinder bore 11 a is formed in the cylinder block 11.
- the cylinder bore 11a is formed to have a circular cross section with the axial direction directed in the front-rear direction. Although only one cylinder bore 11a is shown in FIG. 1, a plurality of cylinder bores 11a are formed at intervals in the circumferential direction.
- a compression chamber 11 b is formed behind the piston 50 described later in the cylinder bore 11 a.
- the rotor 30 shown in FIGS. 1 to 4 is a substantially disk-shaped member whose axial direction is directed in the front-rear direction.
- the rotor 30 is fixed to the rotating shaft 20 so that the axial direction coincides with the axial direction of the rotating shaft 20.
- the rotor 30 is formed integrally rotatable with the rotation shaft 20.
- the rotor 30 comprises a rotor side arm 31.
- the rotor side arm 31 is provided at the rear of the rotor 30 (the side facing the swash plate 40).
- the rotor side arm 31 is formed to project rearward from the rotor 30.
- the rotor side arm 31 is integrally formed with the rotor 30 at the rear of the rotor 30.
- Two rotor side arms 31 are formed at intervals in the circumferential direction of the rotor 30 (see FIG. 4).
- the piston 50 shown in FIGS. 1 and 5 slides on a cylinder bore 11 a formed in the cylinder block 11.
- the piston 50 mainly includes an engaging portion 51 and a head 52.
- the engagement portion 51 constitutes a front portion of the piston 50.
- a notch 53 is formed in the engaging portion 51.
- the head 52 constitutes the rear of the piston 50.
- the head 52 is slidably disposed relative to the cylinder bore 11a.
- the head 52 is formed at the rear of the engaging portion 51.
- the head 52 is formed to have a circular cross section with the axial direction directed in the front-rear direction.
- the outer diameter of the head 52 is formed to be substantially the same as the inner diameter of the cylinder bore 11a.
- the shoe 200 shown in FIGS. 1 and 5 engages with the swash plate 40 and the piston 50.
- the shoe 200 is formed in a substantially hemispherical shape.
- the shoe 200 is accommodated in a recess formed in the notch 53 of the piston 50, and is disposed before and after the outer peripheral end of the swash plate 40 (see FIG. 5). Details of the configuration of the shoe 200 will be described later.
- the spring 70 shown in FIG. 1 biases the swash plate 40.
- the spring 70 is a compression spring.
- the rotation shaft 20 is inserted through the central portion of the spring 70.
- the springs 70 are disposed at the front and the back of the swash plate 40, respectively, with the expansion and contraction direction oriented in the front and back direction. Thus, the spring 70 biases the swash plate 40 from the front and back.
- the control valve 80 shown in FIG. 1 adjusts the internal pressure of the crank chamber 10a.
- the control valve 80 is disposed at the rear of the housing 10.
- the transmission mechanism 100 rotates the swash plate 40 as the rotor 30 rotates. Further, the transmission mechanism 100 guides the tilting of the swash plate 40. 1, 2 and 4 show the state where the displacement of the swash plate type compressor 1 is at the minimum, and FIG. 3 shows the state where the displacement of the swash plate type compressor 1 is at the maximum. There is.
- connection arm 110 is a portion which connects the rotor side arm 31 and the swash plate side arm 41 in the transmission mechanism 100.
- the connection arm 110 is formed in a block shape extending substantially in the front-rear direction.
- the front part of the connecting arm 110 is disposed between the two rotor side arms 31.
- the rear portion of the connection arm 110 is divided into two in the circumferential direction.
- a front end portion of the swash plate side arm 41 is disposed at the divided portion of the connection arm 110.
- the rotor side connection pin 120 rotatably connects the rotor side arm 31 and the connection arm 110.
- the rotor side connection pin 120 is formed in a substantially cylindrical shape extending leftward and rightward.
- the rotor side connection pin 120 is inserted through the two rotor side arms 31 and the connection arm 110 so as to be rotatable. As a result, the rotor side arm 31 and the connection arm 110 are connected so as to be relatively rotatable around the rotor side connection pin 120.
- the swash plate side connection pin 130 rotatably connects the swash plate side arm 41 and the connection arm 110.
- the swash plate side connection pin 130 is formed in a substantially cylindrical shape extending leftward and rightward.
- the swash plate side connection pin 130 is inserted through the rear portion (portion divided into two) of the connection arm 110 and the swash plate side arm 41 so as to be rotatable. As a result, the swash plate side arm 41 and the connection arm 110 are connected so as to be relatively rotatable around the swash plate side connection pin 130.
- the shoe 200 engages the swash plate 40 and the piston 50.
- the shoe 200 comprises a first sliding surface 210 and a second sliding surface 220.
- the first sliding surface 210 is a surface on the lower side of the shoe 200 and is a surface (see FIG. 5) that slides on the concave curved surface 53 a of the piston 50.
- the first sliding surface 210 is formed to bulge downward.
- the first sliding surface 210 is formed in a hemispherical shape along the concave curved surface 53 a of the piston 50.
- the rotor 30 rotates integrally with the rotary shaft 20 around the axis of the rotary shaft 20. Do. Then, the rotor side arm 31 provided on the rotor 30 also rotates about the axis of the rotation shaft 20.
- the swash plate type compressor 1 is formed so that the discharge capacity can be changed by tilting the swash plate 40 (the inclination angle of the swash plate 40 is changed).
- the control of the displacement is performed by adjusting the difference in internal pressure between the crank chamber 10a and the compression chamber 11b by the control valve 80, thereby changing the inclination angle of the swash plate 40.
- the swash plate 40 rotates clockwise in left side view.
- the connection arm 110 can appropriately guide the rotation (tilting) of the swash plate 40 by rotating counterclockwise in left side view.
- the inclination angle of the swash plate 40 is increased (see FIG. 3).
- the displacement of the swash plate type compressor 1 is increased.
- the connection arm 110 can appropriately guide the rotation (tilting) of the swash plate 40 by rotating clockwise in left side view. Thereby, the inclination angle of the swash plate 40 is reduced (see FIG. 2). As the inclination angle of the swash plate 40 is reduced, the displacement of the swash plate compressor 1 is reduced.
- the shoe 200 slides on the swash plate 40. More specifically, the second sliding surface 220 of the shoe 200 slides with the resin coating layer 42 formed on the plate surface of the swash plate 40.
- a wedge-shaped gap G is formed between the second sliding surface 220 and the resin coating layer 42 of the swash plate 40 (see FIG. 7B).
- the gap G is formed such that the angle between the second sliding surface 220 and the surface of the resin coating layer 42 of the swash plate 40 smoothly decreases toward the center of the second sliding surface 220. This makes it easy to draw in the lubricating oil from the large clearance to the small clearance. Therefore, an oil film pressure can be generated between the second sliding surface 220 and the resin coating layer 42.
- the bulging height h1 of the second sliding surface 220 is 15 ⁇ m or less, an oil film can be easily formed (easily maintained) between the second sliding surface 220 and the resin coating layer 42. be able to. Therefore, the occurrence of burn-in can be suppressed.
- the shoe 200 bulges to the side opposite to the first sliding surface 210 and the first sliding surface 210 sliding on the concave curved surface 53 a of the piston 50 (first movable member).
- a second sliding surface 220 which slides with the flat surface of the swash plate 40 (second movable member), and the second sliding surface 220 is the second sliding surface 220.
- an outer peripheral portion 221 provided along the outer periphery of the second sliding surface 220 continuously with the outer peripheral portion 221 so that the radius of curvature is larger than that of the outer peripheral portion 221.
- the central portion 222 is formed to have a diameter of 5 mm or more and a bulging height h2 of 3 ⁇ m or less. With such a configuration, the deformation of the swash plate 40 can be further suppressed.
- the second sliding surface 220 is formed so that the bulging height h1 is 15 ⁇ m or less. With this configuration, the oil film can be easily formed on the second sliding surface 220 even under severe lubricating conditions where the amount of lubricating oil supplied is small.
- the swash plate type compressor 1 is provided with the shoe 200 and the swash plate 40 having the resin coating layer 42 on the flat surface.
- the resin coating layer 42 is formed on the plate surface (flat surface) of the swash plate 40, but the present invention is not limited to this.
- the plate surface of the swash plate 40 The resin coating layer 42 may not be formed.
- the swash plate 40 itself may be formed of a synthetic resin.
- the present invention can be applied to a shoe and a swash plate compressor equipped with the shoe.
Abstract
Description
このように構成することにより、斜板40の変形を抑制することができる。
このように構成することにより、斜板40の変形をより抑制することができる。
このように構成することにより、潤滑油の供給量が少ない過酷な潤滑条件の場合でも、第二摺動面220に油膜を形成し易くすることができる。
このように構成することにより、斜板40の平坦面に樹脂コーティング層42が形成されていても、斜板40の変形を抑制することができる。
また、本実施形態に係る斜板40は、本発明に係る第二可動部材の一形態である。
40 斜板
42 樹脂コーティング層
50 ピストン
53a 凹状曲面
200 シュー
210 第一摺動面
220 第二摺動面
221 外周部
222 中央部
Claims (4)
- 第一可動部材の凹状曲面と摺動する第一摺動面と、
前記第一摺動面と反対側へ膨出するように形成されて第二可動部材の平坦面と摺動する第二摺動面と、
を具備し、
前記第二摺動面は、
当該第二摺動面の外周に沿って設けられた曲面状の外周部と、
当該第二摺動面の中央に当該外周部と連続して設けられ、当該外周部よりも曲率半径が大きくなるように形成された中央部と、
を具備する、
シュー。 - 前記中央部は、
直径5mm以上の範囲に亘って、且つ、膨出高さが3μm以下となるように形成されている、
請求項1に記載のシュー。 - 前記第二摺動面は、
膨出高さが15μm以下となるように形成されている、
請求項1又は請求項2に記載のシュー。 - 請求項1から請求項3までのいずれか一項に記載のシューと、
前記第二可動部材であって、前記平坦面に樹脂コーティング層を有する斜板と、
を具備する、
斜板式コンプレッサー。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/087,877 US11015586B2 (en) | 2016-03-31 | 2017-03-30 | Shoe and swash plate compressor including the shoe |
KR1020187030752A KR20180124116A (ko) | 2016-03-31 | 2017-03-30 | 슈 및 상기 슈를 구비하는 사판식 압축기 |
EP17775488.4A EP3438452B1 (en) | 2016-03-31 | 2017-03-30 | Shoe and swashplate type compressor equipped with said shoe |
CN201780021031.7A CN108884819B (zh) | 2016-03-31 | 2017-03-30 | 滑履及具备该滑履的斜板式压缩机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016073126A JP6867751B2 (ja) | 2016-03-31 | 2016-03-31 | シュー及び当該シューを具備する斜板式コンプレッサー |
JP2016-073126 | 2016-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017170954A1 true WO2017170954A1 (ja) | 2017-10-05 |
Family
ID=59965947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/013447 WO2017170954A1 (ja) | 2016-03-31 | 2017-03-30 | シュー及び当該シューを具備する斜板式コンプレッサー |
Country Status (6)
Country | Link |
---|---|
US (1) | US11015586B2 (ja) |
EP (1) | EP3438452B1 (ja) |
JP (1) | JP6867751B2 (ja) |
KR (1) | KR20180124116A (ja) |
CN (1) | CN108884819B (ja) |
WO (1) | WO2017170954A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751977A (en) * | 1980-09-11 | 1982-03-27 | Taiho Kogyo Co Ltd | Swash-plate type compressor |
JPH1122640A (ja) * | 1997-07-08 | 1999-01-26 | Riken Corp | 斜板式圧縮機用シュー |
JP2002089438A (ja) * | 2000-09-18 | 2002-03-27 | Toyota Industries Corp | 斜板式圧縮機 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4568252A (en) * | 1980-03-07 | 1986-02-04 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash-plate type compressor |
JPS5749081A (en) * | 1980-09-09 | 1982-03-20 | Taiho Kogyo Co Ltd | Swash plate type compressor |
JP3503154B2 (ja) * | 1993-10-01 | 2004-03-02 | 株式会社豊田自動織機 | 斜板式圧縮機 |
GB9504962D0 (en) | 1995-03-11 | 1995-04-26 | Tioxide Group Services Ltd | Composite pigmentary material |
JP4001257B2 (ja) * | 1999-03-17 | 2007-10-31 | 株式会社豊田自動織機 | 圧縮機 |
CN201068848Y (zh) * | 2007-06-25 | 2008-06-04 | 桐乡市易锋机械厂 | 空调压缩机滑履 |
JP5298838B2 (ja) * | 2008-12-25 | 2013-09-25 | 大豊工業株式会社 | 斜板とその製造方法 |
-
2016
- 2016-03-31 JP JP2016073126A patent/JP6867751B2/ja active Active
-
2017
- 2017-03-30 US US16/087,877 patent/US11015586B2/en active Active
- 2017-03-30 WO PCT/JP2017/013447 patent/WO2017170954A1/ja active Application Filing
- 2017-03-30 KR KR1020187030752A patent/KR20180124116A/ko not_active Application Discontinuation
- 2017-03-30 CN CN201780021031.7A patent/CN108884819B/zh active Active
- 2017-03-30 EP EP17775488.4A patent/EP3438452B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751977A (en) * | 1980-09-11 | 1982-03-27 | Taiho Kogyo Co Ltd | Swash-plate type compressor |
JPH1122640A (ja) * | 1997-07-08 | 1999-01-26 | Riken Corp | 斜板式圧縮機用シュー |
JP2002089438A (ja) * | 2000-09-18 | 2002-03-27 | Toyota Industries Corp | 斜板式圧縮機 |
Also Published As
Publication number | Publication date |
---|---|
CN108884819B (zh) | 2020-11-20 |
EP3438452A1 (en) | 2019-02-06 |
US20190113030A1 (en) | 2019-04-18 |
KR20180124116A (ko) | 2018-11-20 |
JP6867751B2 (ja) | 2021-05-12 |
EP3438452B1 (en) | 2020-10-14 |
JP2017180433A (ja) | 2017-10-05 |
US11015586B2 (en) | 2021-05-25 |
EP3438452A4 (en) | 2019-09-18 |
CN108884819A (zh) | 2018-11-23 |
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