JPH045830B2 - - Google Patents
Info
- Publication number
- JPH045830B2 JPH045830B2 JP58094565A JP9456583A JPH045830B2 JP H045830 B2 JPH045830 B2 JP H045830B2 JP 58094565 A JP58094565 A JP 58094565A JP 9456583 A JP9456583 A JP 9456583A JP H045830 B2 JPH045830 B2 JP H045830B2
- Authority
- JP
- Japan
- Prior art keywords
- swash plate
- hardened layer
- silicon
- base material
- compressor
- 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.)
- Expired - Lifetime
Links
- 239000010410 layer Substances 0.000 claims description 41
- 229910052710 silicon Inorganic materials 0.000 claims description 35
- 239000010703 silicon Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 29
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 40
- 239000011863 silicon-based powder Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229910000676 Si alloy Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- -1 aluminum-silicon-copper Chemical compound 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 1
- 229940081735 acetylcellulose Drugs 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical group [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
-
- 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
-
- 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
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
【発明の詳細な説明】
［技術分野］
本発明は斜板式コンプレツサに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a swash plate compressor.
［従来技術］
従来より、自動車の空調システムには、軸と平
行に設けられた複数個のシリンダボアをもつシリ
ンダブロツクと、該シリンダブロツク内において
回転軸により回転される斜板と、該シリンダボア
内に摺動自在に嵌合されたピストンと、該ピスト
ンと該傾斜板との間に介在し、該斜板の回転によ
り該ピストンを往復運動させるシユーとで構成さ
れる斜板式コンプレツサが使用されている。この
コンプレツサでは、回転軸の回転により斜板が揺
動し、これによりピストンが往復運動をしてシリ
ンダ内のガスを圧縮する。[Prior Art] Conventionally, an air conditioning system for an automobile includes a cylinder block having a plurality of cylinder bores provided in parallel with an axis, a swash plate rotated by a rotating shaft within the cylinder block, and a swash plate within the cylinder bore. A swash plate type compressor is used, which is composed of a piston that is slidably fitted, and a shoe that is interposed between the piston and the inclined plate and causes the piston to reciprocate by rotation of the swash plate. . In this compressor, the swash plate swings as the rotating shaft rotates, causing the piston to reciprocate and compress the gas in the cylinder.
この斜板式コンプレツサにおいて、例えば摺動
条件のきびしい斜板には、シリコンを17〜25％と
共晶組成以上含有させた過共晶アルミニウム−シ
リコン合金が使用されている。シリコン含有率を
17〜25％と高くした場合には、シリコンを共晶組
成以上含有することから、硬質粗大粒子である初
晶シリコンが母材の内部にも表面にも生じてお
り、表面に生じた硬質の初晶シリコンによつて耐
摩耗性が優れたものとなる。 In this swash plate type compressor, for example, a hypereutectic aluminum-silicon alloy containing 17 to 25% silicon at a eutectic composition or higher is used for the swash plate, which is subject to severe sliding conditions. Silicon content
When the content is as high as 17 to 25%, since silicon is contained in a eutectic composition or higher, primary crystal silicon, which is a hard coarse particle, is generated both inside and on the surface of the base material, and the hard particles formed on the surface are Primary silicon provides excellent wear resistance.
然しながら、この場合には表面加工方法によつ
ては、第１図に示すように、表面に生じている硬
質粗大粒子である初晶シリコン１が表面から脱落
することがある。 However, in this case, depending on the surface processing method, as shown in FIG. 1, primary crystal silicon 1, which is a hard coarse particle formed on the surface, may fall off from the surface.
このように初晶シリコン１が脱落すると、過共
晶アルミニウム−シリコン合金でありながら、耐
摩耗性がそれだけ低下し、潤滑剤等が不足となつ
たときに焼付きを生じ易い。 When the primary silicon 1 falls off in this way, the wear resistance decreases even though it is a hypereutectic aluminum-silicon alloy, and seizure is likely to occur when lubricant or the like is insufficient.
また、母材のシリコン含有量が高いと、耐摩耗
性が優れたものとなる反面、母材がもろくなるた
め、加工が困難、機械的強度が十分でないといつ
た問題が生ずる。 Further, when the silicon content of the base material is high, although the wear resistance is excellent, the base material becomes brittle, resulting in problems such as difficulty in processing and insufficient mechanical strength.
即ち母材全体のシリコンの含有量を高める手段
では、上記した強度上の問題があるため、シリコ
ン含有量に一定の上限がある。 That is, with the means of increasing the silicon content of the entire base material, there is a certain upper limit to the silicon content because of the above-mentioned strength problem.
［発明の目的］
本発明は上記した従来の問題点を克服するもの
であり、母材強度を低下させることなく耐摩耗性
や耐焼付性を向上し得る斜板式コンプレツサを提
供することを目的とする。[Object of the invention] The present invention overcomes the above-mentioned conventional problems, and aims to provide a swash plate compressor that can improve wear resistance and seizure resistance without reducing the strength of the base material. do.
［発明の構成］
すなわち本発明の斜板式コンプレツサにおける
斜板は、アルミニウム合金の母材からなり、その
摺動面の少なくとも一部には、30〜70重量％のシ
リコンを含有し母材表層と融合凝固した硬化層を
有している。[Structure of the Invention] That is, the swash plate in the swash plate type compressor of the present invention is made of an aluminum alloy base material, and at least a portion of its sliding surface contains 30 to 70% by weight of silicon, and has a surface layer of the base material. It has a hardened layer that is fused and solidified.
本発明の斜板式コンプレツサにおいては、シリ
ンダーブロツク、斜板、ピストン等主たる構成要
素の形状は従来の斜板式コンプレツサのそれらと
同一である。 In the swash plate type compressor of the present invention, the shapes of the main components such as the cylinder block, swash plate, and piston are the same as those of the conventional swash plate type compressor.
本発明の斜板母材には、共晶組成若しくはそれ
以上のシリコンを含有するアルミニウム−シリコ
ン系合金が好適に使用されるが、とくにシリコン
含有率は機械的強度を主体として選択される。こ
のほか該斜板母材として、アルミニウム−マグネ
シウム系合金、アルミニウム−シリコン−銅系合
金、アルミニウム−マグネシウム−シリコン系合
金などを用いることができる。また、該斜板母材
は鋳・鍛造その他いかなる成形手段によるもので
あつても差支えない。 For the swash plate base material of the present invention, an aluminum-silicon alloy containing silicon having a eutectic composition or higher is preferably used, and the silicon content is selected mainly based on mechanical strength. In addition, an aluminum-magnesium alloy, an aluminum-silicon-copper alloy, an aluminum-magnesium-silicon alloy, or the like can be used as the swash plate base material. Further, the swash plate base material may be formed by casting, forging, or any other forming method.
硬化層は、上記斜板の母材表面に一体的に形成
され、極めて高濃度のシリコンを含有する。硬化
層のシリコン含有率は30〜70重量％が好適であ
る。この硬化層には高密度の初晶シリコンが含ま
れている。従つて硬化層は、アルミニウム合金の
摺動面の母材よりも著しく硬い。硬化層の厚さは
0.2〜0.8mm程度が好ましい。 The hardened layer is integrally formed on the surface of the base material of the swash plate and contains extremely high concentration of silicon. The silicon content of the hardened layer is preferably 30 to 70% by weight. This hardened layer contains a high density of primary silicon. Therefore, the hardened layer is significantly harder than the base material of the aluminum alloy sliding surface. The thickness of the hardened layer is
Approximately 0.2 to 0.8 mm is preferable.
硬化層は、摺動面の全面にわたつて形成されて
いても一部に形成されていてもよい。従つて硬化
層は、適数条の線状として形成されていてもよ
い。線状に形成する場合には、摺動方向に倣つた
リング状、摺動方向と交わる放射状などなど随意
の形態を選択することができる。 The hardened layer may be formed over the entire surface of the sliding surface or may be formed on a portion of the sliding surface. Therefore, the cured layer may be formed into an appropriate number of linear strips. When forming it in a linear shape, any form can be selected, such as a ring shape that follows the sliding direction, a radial shape that intersects with the sliding direction, etc.
なお、上記したように硬化層を線状に形成した
場合には、その摺動面を研磨すると、第２図にそ
の断面を示すように、硬化層４よりも柔らかい母
材３の表面がある深さＬ、例えば0.2〜0.5μｍ程
度深くけずられ、これによつて摺動面に上下のう
ねりが生じる。このうねりは油膜形成を助けるこ
とから、摺動面の潤滑性を向上させ得る。 In addition, when the hardened layer is formed in a linear shape as described above, when its sliding surface is polished, there is a surface of the base material 3 that is softer than the hardened layer 4, as shown in the cross section in FIG. It is deeply scratched to a depth L, for example, about 0.2 to 0.5 μm, thereby creating vertical undulations on the sliding surface. Since this undulation helps in the formation of an oil film, it can improve the lubricity of the sliding surface.
第３図〜第５図に本発明を特色づける代表的な
摺動面を形成する部分の断面顕微鏡写真を示す。
この部分は母材にアルミニウム合金鋳物（JIS−
AC9A）を使用し、その表面にシリコン粉末を線
状に塗布し、このシリコン粉末にレーザビームを
照射して、シリコン粉末及びその周囲の母材を溶
融させ、その後凝固させて母材表面に硬化層を形
成したものである。第３図の右側の1/3の白い部
分が母材、中央部のレンズ状のものが硬化層であ
る。なお、第３図の倍率は50倍である。第３図の
母材及び硬化層の組織をそれぞれ200倍の倍率で
拡大した顕微鏡写真を第４図、第５図に示す。第
４図、第５図において黒い部分が初晶シリコン、
白い部分がマトリツクスのアルミ合金である。第
５図の硬化層の初晶シリコンは、第４図の母材の
初晶シリコンに比較し、形状が大きく、密集して
存在するのがわかる。 3 to 5 show cross-sectional micrographs of a portion forming a typical sliding surface that characterizes the present invention.
This part is made of aluminum alloy casting (JIS-
AC9A), apply silicon powder in a line on the surface, irradiate the silicon powder with a laser beam, melt the silicon powder and the surrounding base material, and then solidify and harden on the base material surface. It is made up of layers. The white part on the right side of Figure 3 is the base material, and the lens-shaped part in the center is the hardened layer. The magnification in Figure 3 is 50x. FIGS. 4 and 5 are micrographs of the structures of the base material and hardened layer shown in FIG. 3, each enlarged at a magnification of 200 times. In Figures 4 and 5, the black part is primary silicon,
The white part is the aluminum alloy matrix. It can be seen that the primary crystal silicon in the hardened layer in FIG. 5 is larger in shape and is present in a denser manner than the primary silicon in the base material in FIG. 4.
次に本発明に係る硬化層を製造する代表的な方
法を第６図Ａ，Ｂ，Ｃを参照して説明する。まず
鋳造又は鍛造によつて、アルミニウム合金を、斜
板の所定形状に成形した後、摺動面となる表面を
研磨あるいは研削する。次にシリコン粉末を樹脂
で混練したシリコンペースト５を、研磨研削した
表面に塗布する。樹脂としては、アセチルセルロ
ース等を使用することができる。なお、シリコン
ペーストを塗布することに代えて、シリコン粉末
自体を塗布することもできる。次に塗布したシリ
コンペースト５にレーザビームを照射する。照射
条件は例えば、照射ビーム径1.5mm、レーザパワ
ー密度1.4KW／mm2、移動速度0.6ｍ／minとする。
この様にレーザビームを照射するとシリコンペー
スト５は溶融し、同様にシリコンペースト５周域
の母材も局部的に溶融する。この状態でレーザビ
ームの照射をやめると、溶融した部分が凝固し硬
化層４が形成される。硬化層４はシリコン含有量
が極めて高いことから、硬化層４中には初晶シリ
コンが高密度に晶出する。しかも硬化層４は急熱
急冷されるため初晶シリコンが細かく分散し、脱
落し難いうえ、耐摩耗性にも優れる。 Next, a typical method for manufacturing the hardened layer according to the present invention will be described with reference to FIGS. 6A, B, and C. First, aluminum alloy is formed into the predetermined shape of the swash plate by casting or forging, and then the surface that will become the sliding surface is polished or ground. Next, a silicon paste 5 made by kneading silicon powder with a resin is applied to the polished surface. As the resin, acetylcellulose or the like can be used. Note that instead of applying silicon paste, silicon powder itself may be applied. Next, the applied silicon paste 5 is irradiated with a laser beam. The irradiation conditions are, for example, an irradiation beam diameter of 1.5 mm, a laser power density of 1.4 KW/mm 2 , and a moving speed of 0.6 m/min.
When the laser beam is irradiated in this manner, the silicon paste 5 is melted, and the base material around the silicon paste 5 is also locally melted. When the laser beam irradiation is stopped in this state, the melted portion solidifies and a hardened layer 4 is formed. Since the hardened layer 4 has an extremely high silicon content, primary silicon crystallizes in the hardened layer 4 at a high density. Moreover, since the hardened layer 4 is rapidly heated and cooled, the primary silicon is finely dispersed, and it is difficult to fall off and has excellent wear resistance.
硬化層４を摺動面にリング状又は放射状を描く
ように形成する場合には、シリコンペースト５を
摺動面にリング状又は放射状に塗布し、この塗布
したシリコンペースト５に沿つてレーザビームを
照射すればよい。 When forming the hardened layer 4 in a ring shape or radial shape on the sliding surface, silicon paste 5 is applied on the sliding surface in a ring shape or radial shape, and a laser beam is applied along the applied silicon paste 5. Just irradiate it.
以上のようにして斜板の摺動面に硬化層４を形
成したならば、硬化層４で若干盛り上つた摺動面
の表面を平滑に仕上げる。仕上げは、ラツプ仕上
げ、ペーパ仕上げ、砥石仕上げ等を行ない、更に
バフ研磨すればよい。 Once the hardened layer 4 is formed on the sliding surface of the swash plate as described above, the slightly raised surface of the sliding surface is smoothed with the hardened layer 4. For finishing, lap finishing, paper finishing, grindstone finishing, etc. may be performed, and then buffing is performed.
なお、場合によつてはレーザビームに代えて電
子ビームを照射することによりシリコンペースト
５を溶融してもよい。 Note that, depending on the case, the silicon paste 5 may be melted by irradiating with an electron beam instead of the laser beam.
［発明の効果］
本発明の斜板式コンプレツサにおける斜板は、
アルミニウム合金の母材からなり、その摺動面の
少なくとも一部には、30〜70重量％のシリコンを
含有し母材表層と融合凝固した硬化層を有するも
のであるから、母材の強度と摺動表面の耐摩耗性
とを共に高水準で両立させることができ、しかも
上記硬化層は、局部的な熱エネルギの付与によつ
て急熱急冷される結果、30〜70重量％とシリコン
濃度を極端に高くしても初晶シリコンは細かく分
散し、苛酷な摺動にも脱落することなく良好な耐
摩耗性を発揮するので、耐焼付性の向上とも相ま
つて斜板式コンプレツサの耐用度を格段と向上さ
せることができる。[Effect of the invention] The swash plate in the swash plate compressor of the present invention is
It is made of an aluminum alloy base material, and at least a portion of its sliding surface has a hardened layer that contains 30 to 70% by weight of silicon and is fused and solidified with the surface layer of the base material, so the strength of the base material and It is possible to achieve both a high level of wear resistance on the sliding surface, and the hardened layer has a silicon concentration of 30 to 70% by weight as a result of being rapidly heated and cooled by applying local thermal energy. Even if the temperature is extremely high, the primary silicon is finely dispersed and exhibits good wear resistance without falling off even under severe sliding conditions.This, combined with improved seizure resistance, improves the durability of swash plate type compressors. It can be improved significantly.
実施例 １
本発明の１実施例の斜板式コンプレツサの断面
図を第７図に示す。第７図において７はシリンダ
ブロツクであり、このシリンダブロツク７内には
回転軸８が軸受９，１０を介して回転自在に軸支
され、この回転軸８には、斜板１１がピンにより
連結固定されている。そして前記シリンダブロツ
ク７には放射状等間隔位置にシリンダボア１３が
それぞれ形成され、各ボア１３内には、ピストン
１４が摺動自在に嵌合されている。このシリンダ
ブロツク７の左端開口部には、バルブプレート１
５及びフロントシリンダヘツド１６とにより閉塞
され、右端開口部にはバルブプレート１７及びリ
ヤシリンダヘツド１８により閉塞されている。Embodiment 1 A sectional view of a swash plate compressor according to an embodiment of the present invention is shown in FIG. In FIG. 7, 7 is a cylinder block, and a rotating shaft 8 is rotatably supported in this cylinder block 7 via bearings 9 and 10, and a swash plate 11 is connected to this rotating shaft 8 by a pin. Fixed. Cylinder bores 13 are formed in the cylinder block 7 at equal radial intervals, and a piston 14 is slidably fitted into each bore 13. A valve plate 1 is provided at the left end opening of the cylinder block 7.
5 and a front cylinder head 16, and the right end opening is closed by a valve plate 17 and a rear cylinder head 18.
前記ピストン１４の中央部分には斜板１１の外
周部分を受け入れる凹陥部１４ａが形成され、こ
の凹陥部１４ａの軸方向対向面には、それぞれ球
状凹陥部１４ｂが形成されている。そして斜板１
１の端面には、半球状のシユー１９が摺接され、
前記斜板１１の回転をピストン１４に往復動とし
て伝達するようになつている。なお以上の構成は
基本的には従来の斜板式コンプレツサの構造と同
一である。 A concave portion 14a for receiving the outer peripheral portion of the swash plate 11 is formed in the center portion of the piston 14, and spherical concave portions 14b are formed on axially opposing surfaces of the concave portion 14a. and swash plate 1
A hemispherical shoe 19 is slidably connected to the end surface of 1,
The rotation of the swash plate 11 is transmitted to the piston 14 as reciprocating motion. The above structure is basically the same as that of a conventional swash plate compressor.
本実施例では、斜板１１の摺動面が従来のもの
と異なつている。即ち、第８図に示すように、本
実施例にかかる斜板１１′の母材には、アルミニ
ウム合金鋳物（JIS−AC8A）を用い、その表面
に巾約2.5mm、厚さ約400μｍの複数条の硬化層２
０を放射状に形成した。放射状に形成した結果、
硬化層２０は摺動方向と交わる方向へ指向してい
る。硬化層の形成はレーザビームでシリコン粉末
を溶融して形成したものである。 In this embodiment, the sliding surface of the swash plate 11 is different from the conventional one. That is, as shown in FIG. 8, the base material of the swash plate 11' according to this embodiment is an aluminum alloy casting (JIS-AC8A), and the surface thereof has a plurality of holes each having a width of about 2.5 mm and a thickness of about 400 μm. hardened layer 2
0 were formed radially. As a result of radial formation,
The hardened layer 20 is oriented in a direction intersecting the sliding direction. The hardened layer is formed by melting silicon powder with a laser beam.
シユーの母材としては機械構造用炭素鋼（JIS
−S55C）を焼入れし、表面に浸ボロン処理を行
い、ホウ化鉄層を形成した。 The base material for the shoe is carbon steel for mechanical structures (JIS
-S55C) was quenched and the surface was subjected to boron immersion treatment to form an iron boride layer.
本実施例の斜板式コンプレツサーは以上の構成
をもつ。 The swash plate compressor of this embodiment has the above configuration.
つぎに、本実施例の斜板式コンプレツサーの性
能を見るため、次の実験を実施した。すなわち第
８図に示す斜板１１を用いた本実施例の斜板式コ
ンプレツサを駆動し、当初120c.c.封入されたオイ
ルを５時間ごとに順次20c.c.づつ減少させ、オイル
が何c.c.まで減少したときに焼き付きが生じるかの
試験を行つた。この試験では摺動条件を次のよう
にした。 Next, in order to examine the performance of the swash plate compressor of this example, the following experiment was conducted. That is, the swash plate type compressor of this embodiment using the swash plate 11 shown in FIG. A test was conducted to determine whether burn-in occurs when the power is reduced to . In this test, the sliding conditions were as follows.
(1) 回転数 750r.p.m
(2) 吐出圧 20Kg／cm2
(3) 吸入圧 １Kg／cm2
この試験結果によると、オイルが40c.c.とかなり
少なくなつたときに初めて焼付きが生じた。(1) Rotation speed 750r.pm (2) Discharge pressure 20Kg/cm 2 (3) Suction pressure 1Kg/cm 2According to the test results, seizure only occurred when the oil level became considerably low at 40c.c. Ta.
さらにシユーをセラミツク製のシユーに代えた
場合についても同様に試験を行なつた。結果は同
じくオイルが40c.c.とかなり少なくなつたときに初
めて焼付きが生じた。 Furthermore, similar tests were conducted in the case where the shoe was replaced with a shoe made of ceramic. As a result, seizure occurred for the first time when the oil became quite low at 40 c.c.
なお、参考のために硬化層をもたない斜板を具
備した従来の斜板式コンプレツサーの試験結果を
示す。この斜板は母材としてアルミニウム合金鋳
物（JIS−AC9A）を用いたもので、この摺動面
は母材表面で形成されている。また、シユーとし
ては高炭素クロム軸受鋼（JIS−SUJ2）で作つた
ものとセラミツクで作つたものとの二種類を用い
た。従来の斜板式コンプレツサーの試験結果は、
シユーに高炭素クロム軸受鋼（JIS−SUJ2）製の
シユーを用いたときでは、オイルが60c.c.で焼付き
が生じ、セラミツク製のシユーを用いたときでは
オイルが100c.c.で焼付きが生じた。 For reference, test results of a conventional swash plate compressor equipped with a swash plate without a hardened layer are shown. This swash plate uses cast aluminum alloy (JIS-AC9A) as a base material, and the sliding surface is formed on the surface of the base material. Two types of shoes were used: one made of high carbon chromium bearing steel (JIS-SUJ2) and one made of ceramic. The test results for the conventional swash plate compressor are as follows:
When a shoe made of high carbon chrome bearing steel (JIS-SUJ2) is used, oil seizes at 60 c.c., and when a ceramic shoe is used, oil seizes at 100 c.c. A problem occurred.
第９図に示す斜板１１はアルミニウム合金鋳物
（JIS−AC8A）で作られその摺動面に硬化層２１
をほぼ同心リング状に２条形成したものである。
この硬化層２１の巾は約2.5mmで、厚さは約400μ
ｍである。この硬化層２１はリング状に形成され
ているから摺動方向と平行となつている。 The swash plate 11 shown in FIG. 9 is made of aluminum alloy casting (JIS-AC8A) and has a hardened layer 21 on its sliding surface.
Two strips are formed in a substantially concentric ring shape.
The width of this hardened layer 21 is approximately 2.5 mm, and the thickness is approximately 400 μm.
It is m. Since this hardened layer 21 is formed in a ring shape, it is parallel to the sliding direction.
なお、シユーは実施例の斜板式コンプレツサー
のように半球状のシユーを用いてもよいが、第１
０図に示すように板状のシユー２４とボール２５
を用いてもよい。この斜板式コンプレツサーでは
板状のシユー２４が斜板と摺接し、ピストン１４
の球状凹陥部１４ｂとシユー２４の球状凹陥部と
の間にボール２５が介装されている。 Note that the shoe may be a hemispherical shoe like the swash plate compressor of the embodiment, but the first
As shown in Figure 0, a plate-shaped shoe 24 and a ball 25
may also be used. In this swash plate type compressor, a plate-shaped shoe 24 is in sliding contact with the swash plate, and the piston 14 is in sliding contact with the swash plate.
A ball 25 is interposed between the spherical recess 14b of the shoe 24 and the spherical recess 14b of the shoe 24.
第１図は従来の摺動材料の表面の初晶シリコン
が脱落した状態を模式的に示す断面図である。第
２図は本発明に係る硬化層の一例を示したもので
あり、摺動面を研磨した状態を模式的に示す断面
図である。第３図、第４図および第５図は本発明
に係る硬化層の一例を示す断面顕微鏡写真であ
る。第６図Ａ，Ｂ，Ｃは本発明の硬化層の製造工
程を模式的に示す断面図である。第７図は本発明
の一実施例の斜板式コンプレツサの縦断面図であ
る。第８図は第７図の斜板式コンプレツサーの斜
板の拡大斜視図であり、第９図は他の斜板の拡大
斜視図、第１０図は他の斜板式コンプレツサを示
す縦断面図である。
１１……斜板、１９……半球状のシユー、２４
……平板状のシユー、２０，２１，２６……硬化
層。
FIG. 1 is a cross-sectional view schematically showing a state in which primary crystal silicon on the surface of a conventional sliding material has fallen off. FIG. 2 shows an example of a hardened layer according to the present invention, and is a sectional view schematically showing a state in which the sliding surface has been polished. FIG. 3, FIG. 4, and FIG. 5 are cross-sectional micrographs showing an example of a cured layer according to the present invention. FIGS. 6A, B, and C are cross-sectional views schematically showing the manufacturing process of the hardened layer of the present invention. FIG. 7 is a longitudinal sectional view of a swash plate compressor according to an embodiment of the present invention. FIG. 8 is an enlarged perspective view of the swash plate of the swash plate compressor shown in FIG. 7, FIG. 9 is an enlarged perspective view of another swash plate, and FIG. 10 is a vertical sectional view showing another swash plate compressor. . 11... Swash plate, 19... Hemispherical shoe, 24
...Flat-shaped shoe, 20, 21, 26... Hardened layer.
Claims (1)
をもつシリンダブロツクと、該シリンダブロツク
内において回転軸により回転される斜板と、該シ
リンダボア内に摺動自在に嵌合されたピストン
と、該ピストンと該斜板との間に摺動自在に介在
し、該斜板の回転により該ピストンを往復運動さ
せるシユーとで構成されるコンプレツサにおい
て、前記斜板はアルミニウム合金の母材からな
り、その摺動面の少なくとも一部には、30〜70重
量％のシリコンを含有し母材表層と融合凝固した
硬化層を有することを特徴とする斜板式コンプレ
ツサ。 ２ 前記硬化層は、母材表面よりわずかに突出し
て形成されている特許請求の範囲第１項記載の斜
板式コンプレツサ。 ３ 前記硬化層は、適数条の線状に形成されてい
る特許請求の範囲第１項記載の斜板式コンプレツ
サ。 ４ 前記硬化層は、摺動方向に做つたリング状に
形成されている特許請求の範囲第３項記載の斜板
式コンプレツサ。 ５ 前記硬化層は、摺動方向と交わる放射状に形
成されている特許請求の範囲第３項記載の斜板式
コンプレツサ。[Scope of Claims] 1. A cylinder block having a plurality of cylinder bores provided parallel to an axis, a swash plate rotated by a rotating shaft within the cylinder block, and a swash plate slidably fitted within the cylinder bore. In the compressor, the compressor is composed of a piston and a shoe that is slidably interposed between the piston and the swash plate and that reciprocates the piston by rotation of the swash plate, the swash plate being made of an aluminum alloy matrix. 1. A swash plate type compressor comprising a hardened layer containing 30 to 70% by weight of silicon, which is fused and solidified with the surface layer of the base material, on at least a portion of its sliding surface. 2. The swash plate compressor according to claim 1, wherein the hardened layer is formed to slightly protrude from the surface of the base material. 3. The swash plate type compressor according to claim 1, wherein the hardened layer is formed in an appropriate number of lines. 4. The swash plate compressor according to claim 3, wherein the hardened layer is formed in a ring shape extending in the sliding direction. 5. The swash plate compressor according to claim 3, wherein the hardened layer is formed radially intersecting the sliding direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58094565A JPS59221479A (en) | 1983-05-27 | 1983-05-27 | Swash plate type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58094565A JPS59221479A (en) | 1983-05-27 | 1983-05-27 | Swash plate type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59221479A JPS59221479A (en) | 1984-12-13 |
| JPH045830B2 true JPH045830B2 (en) | 1992-02-03 |
Family
ID=14113837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58094565A Granted JPS59221479A (en) | 1983-05-27 | 1983-05-27 | Swash plate type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59221479A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000179453A (en) * | 1998-12-17 | 2000-06-27 | Taiho Kogyo Co Ltd | Swash plate of swash plate type compressor |
| JP4072132B2 (en) | 2004-03-31 | 2008-04-09 | 大同メタル工業株式会社 | Sliding bearing manufacturing method |
| PL1835175T3 (en) * | 2004-12-28 | 2011-12-30 | Taiho Kogyo Co Ltd | Shoe for swash plate compressor |
| JP3931990B2 (en) | 2005-04-27 | 2007-06-20 | 大豊工業株式会社 | Sliding device |
-
1983
- 1983-05-27 JP JP58094565A patent/JPS59221479A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59221479A (en) | 1984-12-13 |
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