WO2013146682A1 - 斜板 - Google Patents
斜板 Download PDFInfo
- Publication number
- WO2013146682A1 WO2013146682A1 PCT/JP2013/058583 JP2013058583W WO2013146682A1 WO 2013146682 A1 WO2013146682 A1 WO 2013146682A1 JP 2013058583 W JP2013058583 W JP 2013058583W WO 2013146682 A1 WO2013146682 A1 WO 2013146682A1
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- WO
- WIPO (PCT)
- Prior art keywords
- swash plate
- coating layer
- base material
- inner peripheral
- angle
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H23/00—Wobble-plate gearings; Oblique-crank gearings
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- 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
- F04B27/0804—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 rotary cylinder block
- F04B27/0821—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 rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/086—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 rotary cylinder block component parts, details, e.g. valves, sealings, lubrication swash plate
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- 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
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- 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
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- 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
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- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
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- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0215—Lubrication characterised by the use of a special lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6696—Special parts or details in view of lubrication with solids as lubricant, e.g. dry coatings, powder
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/30—Angles, e.g. inclinations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18296—Cam and slide
- Y10T74/18336—Wabbler type
Definitions
- the present invention relates to a swash plate, and more particularly, to a swash plate of a swash plate compressor, and a swash plate having a coating layer serving as a sliding surface.
- a swash plate for a swash plate compressor has been proposed in which a resin film layer (coating layer) is formed on the surface of a base material and the resin film layer is used as a sliding surface (for example, Patent Documents 1 to 5). Reference 3).
- a resin film layer coating layer
- Reference 3 when the swash plate is rotated by a rotating shaft, it slides with a shoe as a mating member, and lubricating oil is supplied from the inner peripheral side of the swash plate to both members.
- the sliding part is lubricated.
- the conventional swash plate provided with the resin coating layer as described above, when lubricating oil is supplied to the sliding surface from the inner peripheral side of the swash plate, the lubricating oil is supplied to the entire sliding surface. There was a problem that it was difficult. That is, as shown in FIGS. 4 to 5, in the conventional swash plate, a resin coating layer is formed on the surface of the substrate, and the inner side of the inner periphery of the resin coating layer is the end surface of the substrate. Is exposed.
- the inner peripheral portion of the resin coating layer is a step whose radial cross section rises by 40 ° or more with respect to the end surface of the substrate.
- the angle ⁇ 1 formed by the virtual straight line L1 and the end face of the base material is 40 ° or more.
- the angle ⁇ 2 formed by the rising portion adjacent to the inner edge of the inner peripheral portion with the end surface of the base material is an angle close to 90 °. Therefore, in the conventional swash plate, when the lubricating oil is supplied from the inner peripheral side, when the lubricating oil moves to the outer circumferential sliding surface along the exposed end surface of the base material, The resin film layer is likely to be rebounded by a step in the inner peripheral portion (see FIG. 5).
- the conventional swash plate has a problem that it is difficult to supply the lubricating oil to the radially outer sliding surface over the inner peripheral portion of the resin coating layer. Therefore, it has been pointed out that the conventional swash plate is insufficiently lubricated and tends to be seized.
- the present invention provides a swash plate that includes a disk-shaped base material and a coating layer applied to an end surface of the base material, and the coating layer serves as a sliding surface that slides on the shoe.
- the inner peripheral portion of the coating layer has an outer edge serving as an edge portion on the inner peripheral portion side of the sliding surface in a radially outward direction with respect to an inner edge serving as a boundary portion with the end surface of the base material.
- the inclined surface is located, and the inclined surface has an angle ⁇ 1 formed by an imaginary straight line connecting the inner edge and the outer edge with the end surface of the base material set to 10 ° or less, and The angle ⁇ 2 formed by the rising portion adjacent to the inner edge with the end surface is set to 20 ° or less, and the angle formed with the end surface of the base material is less than 90 ° in any part of the inclined surface. It is characterized by this.
- the inner peripheral portion of the coating layer has the above-described inclined surface. Therefore, when the lubricating oil is supplied from the inner peripheral side of the swash plate (the inner peripheral side of the base material), the lubricating oil passes over the inner peripheral portion having the inclined surface without any trouble, and the outer side To the sliding surface. Therefore, insufficient lubrication on the sliding surface can be prevented, and therefore seizure of the swash plate can be well prevented.
- FIG. 1 The front view of the principal part which shows one Example of this invention.
- Sectional drawing which shows the principal part of the swash plate shown in FIG. The enlarged view of the principal part of FIG. Sectional drawing which shows the principal part of the swash plate of a conventional product.
- FIG. 1 shows a main part of a swash plate compressor.
- This swash plate compressor wraps the outer peripheral portion of the swash plate 2 by a disc-shaped swash plate 2 attached to the outer peripheral portion of the rotating shaft 1 and a notch portion 3A at one end along the rotating shaft 1.
- a plurality of pistons 3 arranged between the pair of hemispherical recesses 3B and 3B formed in the notch 3A of each piston 3 and the front surface 2A and back surface 2B of the swash plate 2.
- a hemispherical shoe 4 arranged between the pair of hemispherical recesses 3B and 3B formed in the notch 3A of each piston 3 and the front surface 2A and back surface 2B of the swash plate 2.
- a hemispherical shoe 4 arranged between the pair of hemispherical recesses 3B and 3B formed in the notch 3A of each piston 3 and the front surface 2A and back surface 2B of the s
- the shoe 4 includes a hemispherical surface 4A fitted in the recess 3B of the piston 3 and a flat end surface 4B that slides with the front surface 2A or the rear surface 2B that is the sliding surface of the swash plate 2.
- the shoe 4 is made of SUJ2, and the hemispherical surface 4A and the end surface 4B are quenched and then finished.
- the swash plate 2 is rotated along with the rotation of the rotary shaft 1, the front surface 2 ⁇ / b> A or the rear surface 2 ⁇ / b> B that is a sliding surface of the swash plate 2 and the end surfaces 4 ⁇ / b> B of the pair of shoes 4 slide and the pair of shoes 4.
- Each of the pistons 3 is reciprocated along the axial direction of the rotary shaft 1 by sliding the hemispherical surface 4A and the recesses 3B, 3B of the piston 3. Further, when the rotary shaft 1 and the swash plate 2 are rotated, the lubricating oil is supplied from the inner peripheral portion of the swash plate 2 through which the rotary shaft 1 passes. With rotation, it is supplied to the front surface 2A and the back surface 2B which are sliding surfaces.
- the swash plate 2 of the present embodiment includes a disk-shaped base material 11 having a through hole 11 ⁇ / b> A through which the rotary shaft 1 penetrates at the center, and the base material 11. And a resin film layer 12 as a coating layer applied to both end faces 11B. 2 and 3, only the end surface 11B on the front surface 2A side and the resin coating layer 12 applied thereto are shown, and the back surface 2B is omitted.
- the base material 11 is made of an iron-based material, and is set to the same thickness over the entire area.
- a through hole 11 ⁇ / b> A of the base material 11 is an inner peripheral portion of the swash plate 2.
- the resin coating layer 12 as a coating layer is provided so as to cover a region extending from the outer peripheral portion of the end surface 11B (the outer peripheral portion 2C of the swash plate 2) to the outside of the through hole 11A. Therefore, the end surface 11B which becomes the adjacent outer portion of the through hole 11A is exposed annularly over the entire circumferential direction.
- the inner peripheral portion 12A of the resin coating layer 12 is formed as an inclined surface on which lubricating oil can easily get over, and thereby the surface 2A which is a sliding surface.
- the lubricating oil is easily supplied to the back surface 2B.
- the thickness of the portions other than the inner peripheral portion 12A and the outer peripheral portion is set to the same thickness, specifically, the thickness is set to 2 to 50 ⁇ m. Has been.
- the inner peripheral portion 12A has an outer edge 12C serving as an edge portion on the inner peripheral portion side of the surface 2A (sliding surface) with respect to the inner edge 12B serving as a boundary with the exposed end surface 11B of the base material 11.
- the inclined surface is located outward in the radial direction.
- the angle ⁇ 1 formed by the virtual straight line L1 connecting the inner edge 12B and the outer edge 12C of the inner peripheral portion 12A and the end surface 11B of the base material 11 is set to 10 ° or less.
- an angle ⁇ 2 formed by the rising portion 12D adjacent to the inner edge 12B and the end surface 11B is set to 20 ° or less, and the end surface 11B is located at any location of the inner peripheral portion 12A that is an inclined surface.
- the angle formed is set to be less than 90 °.
- the angle ⁇ 1 is set to 5 ° or less and the angle ⁇ 2 is set to 15 ° or less.
- the resin coating layer 12 is formed by spin coating. In the case of spin coating, first, resin coating is applied to both end surfaces 11B of the base material 11 by roll coating, and then the base material 11 is held in a rotating mechanism and rotated at an appropriate number of revolutions for a required time. Good. Thereby, the swash plate 2 which has the resin film layer 12 of the structure mentioned above can be manufactured because a resin coating material flows into the outer peripheral side from the inner peripheral side of the end surface of the base material 11 with a centrifugal force.
- the swash plate 2 of the present embodiment is configured as described above.
- the inner peripheral portion 12A of the resin film layer 12 has an inclined surface on which lubricating oil can easily get over. Therefore, when the lubricating oil is supplied from the through-hole 11A of the base material 11 (the inner peripheral portion of the swash plate 2), the lubricating oil passes through the inner peripheral portion 12A of the resin coating layer 12 having the gently inclined surface. It gets over without any trouble and is supplied to the outer surface 2A and the rear surface 2B (sliding surface). Therefore, insufficient lubrication on the front surface 2A and the rear surface 2B, which are sliding surfaces, can be prevented, and therefore seizure of the swash plate 2 due to insufficient lubrication can be well prevented.
- FIG. 6 shows a main part of the swash plate 2 according to the second embodiment of the present invention.
- the radial dimension of the rising portion 12D is made smaller than that of the first embodiment, and the inner circumferential portion 12A has an inclined surface with a substantially arc-shaped cross section in the radial direction. is there.
- Other configurations are the same as those of the first embodiment shown in FIG. 3, and the same reference numerals are given to the respective members corresponding to those of the first embodiment. Even with the swash plate 2 of the second embodiment, the same operation and effect as the first embodiment can be obtained.
- FIG. 7 shows a main part of the swash plate 2 as a third embodiment of the present invention.
- the bulging amount of the inner peripheral portion 12A of the resin coating layer 12 is about three times as large as that of the second embodiment shown in FIG. Therefore, the curvature of the cross section which is an inclined surface has a substantially arc shape larger than that of the second embodiment.
- the other configuration is the same as that of the first embodiment, and the same reference numerals are given to the members corresponding to the first embodiment. Even in the third embodiment, the same operation and effect as the first embodiment can be obtained.
- FIG. 8 shows a main part of the swash plate 2 as the fourth embodiment of the present invention.
- the inner peripheral portion 12A of the resin coating layer 12 is formed as a substantially arc-shaped inclined surface whose radial cross section is recessed downward. Therefore, in the fourth embodiment, the angle ⁇ 2 of the rising portion 12D is smaller than the angle ⁇ 1 formed by the virtual straight line L1 and the end surface 11B.
- Other configurations are the same as those of the first embodiment shown in FIG. 3, and the same reference numerals are given to the respective members corresponding to the first embodiment. Even in the fourth embodiment, it is possible to obtain the same operation and effect as the first embodiment.
- FIG. 9 shows a main part of the swash plate 2 as the fifth embodiment of the present invention.
- a circumferential annular groove 11 ⁇ / b> C is formed at a position adjacent to the inner peripheral portion 12 ⁇ / b> A of the resin coating layer 12 on the end surface 11 ⁇ / b> B of the base material 11.
- the bottom of this annular groove 11C is a flat surface, but the cross sections of both side walls are arcuate.
- the inner peripheral portion 12A of the resin coating layer 12 is formed so as to penetrate into the inside of the annular groove 11C beyond one side wall of the annular groove 11C.
- the angles .theta.1 and .theta.2 are larger than those in the above-described embodiments because the annular groove 11C is formed.
- Other configurations are the same as those of the first embodiment shown in FIG. 3, and the same reference numerals are given to the respective members corresponding to the first embodiment. Even in the fifth embodiment, it is possible to obtain the same operation and effect as the first embodiment.
- FIG. 10 shows the principal part of the swash plate 2 as 6th Example of this invention.
- the sixth embodiment is an embodiment similar to the fifth embodiment shown in FIG. 9, and the sectional shape of the annular groove 11C in the fifth embodiment is formed in an arc shape as a whole.
- And 12 A of inner peripheral parts of the resin film layer 12 are formed so that it may penetrate to the substantially center position in 11 C of annular grooves.
- Other configurations are the same as those of the fifth embodiment, and the same reference numerals are given to the respective members corresponding to those of the fifth embodiment. Even in the sixth embodiment, it is possible to obtain the same operation and effect as the first embodiment.
- the resin coating layer 12 is assumed as the coating layer, but a coating layer other than the resin coating layer may be used.
- the present invention is a swash plate of a swash plate type compressor, and can be used for a swash plate having a coating layer serving as a sliding surface on the surface.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
Description
こうした従来の斜板においては、回転軸によって斜板が回転される際に相手材となるシューと摺動するようになっており、斜板の内周部側から潤滑油が供給されて両部材の摺動部分が潤滑されるようになっている。
上記コーティング層における内周部は、上記基材の端面との境界部となる内方縁に対して、上記摺動面の内周部側の縁部となる外方縁が半径方向外方に位置する傾斜面となっており、該傾斜面は、上記内方縁と外方縁とを結んだ仮想の直線が上記基材の端面と成す角度θ1が10°以下に設定されるとともに、上記内方縁に隣接する立上り部が端面と成す角度θ2が20°以下に設定されており、かつ、傾斜面のいずれの箇所においても上記基材の端面となす角度が90°未満となっていることを特徴とするものである。
シュー4は、ピストン3の凹部3Bに嵌合される半球面4Aと、斜板2の摺動面である表面2A又は裏面2Bと摺動する平坦な端面4Bとを備えている。シュー4はSUJ2からなり、半球面4Aおよび端面4Bに焼入れとその後の仕上げ加工がなされている。
回転軸1の回転に伴って斜板2が回転されると、斜板2の摺動面である表面2A又は裏面2Bと一対のシュー4の端面4Bとが摺動するとともに、一対のシュー4の半球面4Aとピストン3の凹部3B、3Bとが摺動することにより、各ピストン3が回転軸1の軸方向に沿って往復動されるようになっている。
また、回転軸1および斜板2が回転される際には、回転軸1が貫通した斜板2の内周部から潤滑油が供給されるようになっており、潤滑油は斜板2の回転に伴って摺動面である表面2Aと裏面2Bに供給されるようになっている。
基材11は鉄系の材料からなり、全域にわたって同一の厚さに設定されている。この基材11の貫通孔11Aが斜板2の内周部となっている。
コーティング層としての樹脂被膜層12は、端面11Bの外周部(斜板2の外周部2C)から貫通孔11Aよりも外方にわたる領域を被覆して設けられている。そのため、貫通孔11Aの隣接外方部分となる端面11Bは、円周方向全域にわたって環状に露出している。
また、基材11の端面11Bに樹脂被膜層12を形成する方法としては、次のような方法を用いることができる。つまり、スプレー塗装、ロール塗装、スタンプ塗装を採用することができる。さらに、より好適には、スピン塗装によって樹脂被膜層12を形成するのが良い。スピン塗装による場合には、先ず基材11の両方の端面11Bに樹脂塗料をロール塗装で塗布し、その後に基材11を回転機構に保持した状態で適切な回転数で所要時間回転させればよい。それにより、遠心力によって樹脂塗料が基材11の端面の内周側から外周側へ流動することで、上述した構成の樹脂被膜層12を有する斜板2を製造することができる。
なお、上記各実施例においては、コーティング層として樹脂被膜層12を想定しているが、コーティング層として樹脂被膜層以外のものを用いても良い。
2A‥表面(摺動面)
2B‥裏面(摺動面)
12‥樹脂被膜層(コーティング層)
12A‥内周部
12B‥内方縁
12C‥外方縁
12D‥立上り部
Claims (5)
- 円板状の基材と、この基材の端面に施されたコーティング層とを備え、該コーティング層がシューと摺動する摺動面となる斜板にあって、
上記コーティング層における内周部は、上記基材の端面との境界部となる内方縁に対して、上記摺動面の内周部側の縁部となる外方縁が半径方向外方に位置する傾斜面となっており、該傾斜面は、上記内方縁と外方縁とを結んだ仮想の直線が上記基材の端面と成す角度θ1が10°以下に設定されるとともに、上記内方縁に隣接する立上り部が端面と成す角度θ2が20°以下に設定されており、かつ、傾斜面のいずれの箇所においても上記基材の端面となす角度が90°未満となっていることを特徴とする斜板。 - 上記コーティング層は樹脂被膜層からなり、上記角度θ1は5°以下に設定されるとともに、上記角度θ2は15°以下に設定されていることを特徴とする請求項1に記載の斜板。
- 上記傾斜面は、半径方向の断面が上方に向けて略円弧状に膨出する傾斜面、或いは、半径方向の断面が下方へ窪んだ略円弧状の傾斜面であることを特徴とする請求項1又は請求項2に記載の斜板。
- 上記コーティング層の隣接内方位置となる端面に円周方向の環状溝が形成されており、上記コーティング層の内周部は上記環状溝内に入り込んで形成されていることを特徴とする請求項1に記載の斜板。
- 上記コーティング層の厚さは2~50μmに設定されていることを特徴とする請求項1~請求項4のいずれかに記載の斜板。
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CN201380017610.6A CN104246225B (zh) | 2012-03-29 | 2013-03-25 | 斜板 |
EP13769325.5A EP2832997B1 (en) | 2012-03-29 | 2013-03-25 | Swash plate |
US14/387,869 US9206890B2 (en) | 2012-03-29 | 2013-03-25 | Swash plate |
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JP2003120520A (ja) * | 2001-10-05 | 2003-04-23 | Sanden Corp | 斜板式圧縮機 |
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JP2008274762A (ja) * | 2007-04-25 | 2008-11-13 | Toyota Industries Corp | 圧縮機用斜板及びその製造方法 |
JP5841471B2 (ja) * | 2012-03-26 | 2016-01-13 | 大豊工業株式会社 | 斜板 |
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JP2002021719A (ja) * | 2000-07-12 | 2002-01-23 | Toyota Industries Corp | 圧縮機用の斜板 |
JP2002317759A (ja) | 2001-04-25 | 2002-10-31 | Toyota Industries Corp | 斜板式圧縮機用シューおよびそれが配設された斜板式圧縮機 |
JP2003042061A (ja) | 2001-05-21 | 2003-02-13 | Toyota Industries Corp | 斜板式圧縮機 |
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EP2832997A1 (en) | 2015-02-04 |
JP5810020B2 (ja) | 2015-11-11 |
CN104246225A (zh) | 2014-12-24 |
EP2832997A4 (en) | 2016-03-30 |
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HUE035394T2 (en) | 2018-05-02 |
JP2013204574A (ja) | 2013-10-07 |
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