CN104246225A - 斜板 - Google Patents

斜板 Download PDF

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CN104246225A
CN104246225A CN201380017610.6A CN201380017610A CN104246225A CN 104246225 A CN104246225 A CN 104246225A CN 201380017610 A CN201380017610 A CN 201380017610A CN 104246225 A CN104246225 A CN 104246225A
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swash plate
coating layer
face
base material
inclination
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CN104246225B (zh
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柴田正人
山根恭平
后藤真吾
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Taiho Kogyo Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H23/00Wobble-plate gearings; Oblique-crank gearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/0804Multi-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
    • F04B27/0821Multi-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
    • F04B27/086Multi-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • F04B27/1054Actuating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • F04B27/109Lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/02Lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/02Lubrication
    • F04B39/0215Lubrication characterised by the use of a special lubricant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00Sliding-contact bearings for exclusively rotary movement
    • F16C17/04Sliding-contact bearings for exclusively rotary movement for axial load only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/20Sliding surface consisting mainly of plastics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/66Special parts or details in view of lubrication
    • F16C33/6696Special parts or details in view of lubrication with solids as lubricant, e.g. dry coatings, powder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00Other material characteristics; Treatment of material
    • F05C2253/12Coating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00Other material characteristics; Treatment of material
    • F05C2253/20Resin
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/30Angles, e.g. inclinations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00Engines or pumps
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
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    • Y10T74/18336Wabbler type

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  • Mechanical Engineering (AREA)
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Abstract

斜板(2)在其表面(2A)、背面(2B)处形成有树脂被膜层(12),该处成为与滑靴(4)发生滑动的滑动面。树脂被膜层(12)处的内周部(12A)为润滑油容易越过的倾斜面。即,角度θ1小于等于10°,上升部(12D)的角度θ2设定为小于等于20°,当从斜板(2)的内周部侧提供润滑油时,则该润滑油容易地越过为倾斜面的所述内周部(12A),而迅速地被提供给为其外侧的表面(2A)(滑动面)。由于润滑油被迅速地提供给斜板(2)的表面(2A)、背面(2B)(滑动面),因此能良好地防止斜板(2)的热粘。

Description

斜板
技术领域
本发明涉及一种斜板,更详细地,涉及一种斜板式压缩机的斜板,其在表面具备成为滑动面的涂覆层。
背景技术
以往,提案一种如下斜板,其作为斜板式压缩机的斜板,在基材的表面形成树脂被膜层(涂覆层),以该树脂被膜层作为滑动面(例如专利文献1~专利文献3)。
在这样处理而得的以往的斜板中,当斜板借助旋转轴而旋转时,与作为对象件的滑靴发生滑动,从斜板的内周部侧提供润滑油从而使两构件的滑动部分润滑。
现有技术文献
专利文献
专利文献1:日本特开2002-317759号公报
专利文献2:日本特开2003-42061号公报
专利文献3:日本特开2003-184743号公报
发明内容
发明所要解决的问题
然而,在如上述具备树脂被膜层的以往的斜板中,当从斜板的内周部侧向滑动面提供润滑油时,会有润滑油难以提供至滑动面的全范围的问题。即,如图4至图5所示,以往的斜板在基材的表面形成有树脂被膜层,比该树脂被膜层的内周部靠内侧为基材的端面露出的状态。而且,树脂被膜层的内周部为其半径方向的剖面相对于基材的端面上升了40度以上的台阶差。更详细地,当作出连结作为与内周部处的所述基材的端面的边界的内侧缘、以及作为与内周部处的滑动面的边界的外侧缘的假想的直线L1时,该假想的直线L1与基材的端面所形成的角度θ1大于等于40°。进而,作为内周部的内侧缘的邻接部分的上升部与基材的端面所形成的角度θ2为接近90°的角度。因此,在以往的斜板中,当从内周部侧提供润滑油时,当该润滑油沿着露出的基材端面向圆周方向外侧的滑动面移动时,容易因所述树脂被膜层的内周部的台阶差而溅起(参照图5)。因此,在以往的斜板中,存在润滑油难以越过树脂被膜层的内周部而提供给其半径方向外侧的滑动面的问题。由此,以往的斜板被指出存在造成润滑不充分而容易产生热粘的缺点。
用于解决问题的方案
鉴于上述的情况,本发明提供一种斜板,其具备圆板状的基材、以及施加于该基材的端面的涂覆层,该涂覆层成为与滑靴发生滑动的滑动面,
所述斜板的特征在于:所述涂覆层处的内周部为如下倾斜面,即为相对于成为与所述基材的端面的边界部的内侧缘,成为所述滑动面的内周部侧的缘部的外侧缘位于半径方向外侧的倾斜面,该倾斜面中,连结所述内侧缘与外侧缘的假想的直线与所述基材的端面所形成的角度θ1设定为小于等于10°,并且,与所述内侧缘邻接的上升部与端面所形成的角度θ2设定为小于等于20°,并且,在倾斜面的任意一处与所述基材的端面所形成的角度都不足90°。
发明的效果
根据这样的结构,涂覆层的内周部成为上述的倾斜面。因此,当从斜板的内周部侧(基材的内周部侧)提供润滑油时,润滑油无阻碍地越过成为了所述倾斜面的内周部,而提供给外侧的滑动面。因此,能防止在滑动面处的润滑不足,从而能良好地防止斜板的热粘。
附图说明
图1是表示本发明的一个实施例的主要部分的主视图。
图2是表示图1示出的斜板的主要部分的剖视图。
图3是图2的主要部分的放大图。
图4是表示现有产品的斜板的主要部分的剖视图。
图5是图4的主要部分的放大图。
图6是表示本发明的第二实施例的主要部分的剖视图。
图7是表示本发明的第三实施例的主要部分的剖视图。
图8是表示本发明的第四实施例的主要部分的剖视图。
图9是表示本发明的第五实施例的主要部分的剖视图。
图10是表示本发明的第六实施例的主要部分的剖视图。
具体实施方式
以下,就图示实施例来说明本发明,图1示出了斜板式压缩机的主要部分。该斜板式压缩机具备:圆板状的斜板2,倾斜地安装于旋转轴1的外周部;多个活塞3,利用一端的缺口部3A将斜板2的外周部包入并沿着所述旋转轴1配置;以及多个半球形的滑靴4,配置在形成于各活塞3的缺口部3A内的一对半球形的凹部3B、3B与斜板2的表面2A、背面2B之间。
滑靴4具备与活塞3的凹部3B嵌合的半球面4A、以及与作为斜板2的滑动面的表面2A或背面2B发生滑动的平坦的端面4B。滑靴4由SUJ2构成,对半球面4A以及端面4B进行了淬火和其后的精加工。
当斜板2伴随着旋转轴1的旋转而旋转时,作为斜板2的滑动面的表面2A或背面2B与一对滑靴4的端面4B发生滑动,并且一对滑靴4的半球面4A与活塞3的凹部3B、3B发生滑动,由此,使得各活塞3沿着旋转轴1的轴向往复运动。
另外,当旋转轴1以及斜板2旋转时,从旋转轴1所贯通了的斜板2的内周部提供润滑油,润滑油伴随着斜板2的旋转而被提供给作为滑动面的表面2A和背面2B。
如图2至图3所示,本实施例的斜板2由在中心部穿置了用于贯通所述旋转轴1的贯通孔11A的圆板状的基材11、以及作为施加于该基材11的两侧端面11B的涂覆层的树脂被膜层12构成。此外,在图2、图3中,仅示出了成为表面2A一侧的端面11B和施加于该处的树脂被膜层12,省略了背面2B地进行显示。
基材11由铁系的材料构成,遍及全部范围地设定成同一厚度。该基材11的贯通孔11A为斜板2的内周部。
作为涂覆层的树脂被膜层12设置成覆盖遍及从端面11B的外周部(斜板2的外周部2C)到比贯通孔11A靠外侧的区域。因此,成为贯通孔11A的邻接外侧部分的端面11B遍及圆周方向全部范围地呈环状露出。
于是,本实施例以上述结构的斜板2为前提,设为润滑油容易越过树脂被膜层12的内周部12A的倾斜面,由此,使润滑油容易提供给作为滑动面的表面2A和背面2B。更详细地,本实施例的树脂被膜层12将内周部12A和外周部以外的部分的壁厚设定为同一厚度,具体地,将壁厚设定为2~50μm。内周部12A为如下倾斜面,即为相对于成为与基材11的露出的端面11B的边界的内侧缘12B,成为所述表面2A(滑动面)的内周部侧的缘部的外侧缘12C位于半径方向外侧的倾斜面。而且,连结内周部12A的内侧缘12B与外侧缘12C的假想直线L1与所述基材11的端面11B所形成的角度θ1设定为小于等于10°。另外,成为内侧缘12B的邻接部分的上升部12D与端面11B所形成的角度θ2设定为小于等于20°,并且,在作为倾斜面的内周部12A的任意一处与端面11B所形成的角度都设定为不足90°。为了获得更优选的效果,所述角度θ1设定为小于等于5°并且所述角度θ2设定为小于等于15°。
另外,作为在基材11的端面11B形成树脂被膜层12的方法,能使用如下的方法。即,能采用喷涂、辊涂、印(stamp)涂。进而,更适合的是,通过旋涂形成树脂被膜层12为宜。在采用旋涂的情况下,首先在基材11的两侧端面11B以辊涂来涂敷树脂涂料,其后使基材11在保持于旋转机构的状态下以适宜的旋转次数旋转所需时间即可。由此,树脂涂料由于离心力从基材11的端面的内周侧向外周侧流动,由此,能制造具有上述结构的树脂被膜层12的斜板2。
本实施例的斜板2以如上的方式构成。在这样的本实施例的斜板2中,树脂被膜层12的内周部12A成为润滑油容易越过的倾斜面。因此,当从基材11的贯通孔11A(斜板2的内周部)提供了润滑油时,润滑油无阻碍地越过成为所述缓坡倾斜面的树脂被膜层12的内周部12A,而提供给成为其外侧的表面2A、背面2B(滑动面)。因此,能防止作为滑动面的表面2A、背面2B处的润滑不足,从而能良好地防止因润滑不足造成的斜板2的热粘。
接着,图6示出了成为本发明的第二实施例的斜板2的主要部分。在该第二实施例中,与所述第一实施例相比将上升部12D的半径方向尺寸缩小,并且内周部12A的半径方向的剖面设成为大致圆弧状的倾斜面。其他的结构与所述图3所示的第一实施例的结构没有不同,对与所述第一实施例相对应的各构件标记同一编号。即使是这样的第二实施例的斜板2,也能获得与所述第一实施例同样的作用、效果。
接着,图7示出了作为本发明的第三实施例的斜板2的主要部分。该第三实施例与所述图6所示的第二实施例相比树脂被膜层12的内周部12A的膨出量扩大至了三倍左右。因此,作为倾斜面的剖面为曲率比第二实施例更大的大致圆弧状。其他的结构与所述第一实施例的结构没有不同,对与第一实施例对应的各构件标记同一编号。即使是这样的第三实施例,也能获得与所述第一实施例同样的作用、效果。
接着,图8示出了作为本发明的第四实施例的斜板2的主要部分。在该第四实施例中,将树脂被膜层12的内周部12A设成半径方向的剖面为向下方凹陷的大致圆弧状的倾斜面。因此,在该第四实施例中,上升部12D的角度θ2比假想的直线L1与端面11B所形成的角度θ1小。其他的结构与所述图3所示的第一实施例的结构没有不同,对与第一实施例相对应的各构件标记同一编号。即使是这样的第四实施例,也能获得与所述第一实施例同样的作用、效果。
接着,图9示出了作为本发明的第五实施例的斜板2的主要部分。在该第五实施例中,在基材11的端面11B处的树脂被膜层12的内周部12A的邻接位置形成有圆周方向的环状槽11C。虽然该环状槽11C的底部为平坦面,但是两方的侧壁的剖面呈圆弧状。而且,树脂被膜层12的内周部12A越过环状槽11C的一方的侧壁进入到环状槽11C的内部而形成。在该第五实施例中因为形成有所述环状槽11C的关系,所以所述角度θ1、θ2变得比上述各实施例大。其他的结构与所述图3所示的第一实施例的结构没有不同,对与第一实施例相对应的各构件标记同一编号。即使是这样的第五实施例,也能获得与所述第一实施例同样的作用、效果。
接着,图10示出了作为本发明的第六实施例的斜板2的主要部分。该第六实施例为与图9所示的第五实施例类似的实施例,将所述第五实施例中的环状槽11C的剖面形状整体形成为圆弧状。而且,树脂被膜层12的内周部12A形成为进入至环状槽11C内的大致中央位置。其他的结构与第五实施例相同,对与第五实施例相对应的各构件标记同一编号。即使是这样的第六实施例,也能获得与所述第一实施例同样的作用、效果。
此外,在所述各实施例中,虽然将树脂被膜层12假设为涂覆层,但是也可以将树脂被膜层之外的构件用作涂覆层。
附图标记说明
2:斜板;2A:表面(滑动面);2B:背面(滑动面);12:树脂被膜层(涂覆层);12A:内周部;12B:内侧缘;12C:外侧缘;12D:上升部。
产业上的利用领域
本发明为斜板式压缩机的斜板,可利用于在表面具备成为滑动面的涂覆层的斜板。

Claims (5)

1.一种斜板,其具备圆板状的基材、以及施加于该基材的端面的涂覆层,该涂覆层成为与滑靴发生滑动的滑动面,所述斜板的特征在于:
所述涂覆层处的内周部为如下倾斜面,即,为相对于成为与所述基材的端面的边界部的内侧缘,成为所述滑动面的内周部侧的缘部的外侧缘位于半径方向外侧的倾斜面,该倾斜面中,连结所述内侧缘与外侧缘的假想的直线与所述基材的端面所形成的角度θ1设定为小于等于10°,并且,与所述内侧缘邻接的上升部与端面所形成的角度θ2设定为小于等于20°,并且,在倾斜面的任意一处与所述基材的端面所形成的角度都不足90°。
2.根据权利要求1所述的斜板,其特征在于:
所述涂覆层由树脂被膜层构成,所述角度θ1设定为小于等于5°,并且所述角度θ2设定为小于等于15°。
3.根据权利要求1或2所述的斜板,其特征在于:
所述倾斜面是半径方向的剖面向上方膨出为大致圆弧状的倾斜面,或是半径方向的剖面向下方凹陷的大致圆弧状的倾斜面。
4.根据权利要求1所述的斜板,其特征在于:
在成为所述涂覆层的邻接内侧位置的端面形成有圆周方向的环状槽,所述涂覆层的内周部进入至所述环状槽内而形成。
5.根据权利要求1~4中任一项所述的斜板,其特征在于:
所述涂覆层的厚度设定为2~50μm。
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