JP2000054973A - Rotary compressor - Google Patents
Rotary compressorInfo
- Publication number
- JP2000054973A JP2000054973A JP10224808A JP22480898A JP2000054973A JP 2000054973 A JP2000054973 A JP 2000054973A JP 10224808 A JP10224808 A JP 10224808A JP 22480898 A JP22480898 A JP 22480898A JP 2000054973 A JP2000054973 A JP 2000054973A
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- rotary compressor
- compressor according
- hardness
- density
- 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.)
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ロータリコンプ
レッサに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary compressor.
【０００２】[0002]
【従来の技術】一般にロータリコンプレッサは、シリン
ダと、シリンダに対して偏心回転が与えられるローラ
と、シリンダ内に延長突出され、前記ローラの外周面と
常時先端が接触し合うベーンとを有し、ローラの偏心回
転により、吸込ポートから取入れた冷媒を、シリンダ、
ローラ、ベーンとで構成される圧縮室で圧縮し、吐出ポ
ートから吐出するようになっている。2. Description of the Related Art Generally, a rotary compressor has a cylinder, a roller provided with eccentric rotation with respect to the cylinder, and a vane extended and protruded into the cylinder, the tip of which always contacts the outer peripheral surface of the roller. By the eccentric rotation of the roller, the refrigerant taken in from the suction port is
Compressed in a compression chamber composed of rollers and vanes, and discharged from a discharge port.
【０００３】[0003]
【発明が解決しようとする課題】ロータリコンプレッサ
のベーンとローラについては、加工の都合から、ベーン
を工具鋼（ＳＫＨ）、ローラを合金鋳鉄としたものが多
い。The vanes and rollers of a rotary compressor are often made of tool steel (SKH) and the rollers of alloy cast iron for the convenience of machining.
【０００４】一方、近年は、オゾン層破壊による地球環
境の問題からＣＦＣ冷媒の使用禁止、ＨＣＦＣ冷媒の使
用制限とＨＦＣ冷媒の採用に加え、地球温暖化防止に対
応したＨＣ冷媒が採用されている。新たに採用されたこ
れらの冷媒は、コンプレッサの摺動部において、極圧剤
としての働きをする物質（塩素）がなくなり、コンプレ
ッサの摺動部（特に、混合潤滑部、境界潤滑部）の耐摩
耗性が低下するという問題があった。[0004] On the other hand, in recent years, the use of CFC refrigerants has been banned, the use of HCFC refrigerants has been restricted and the use of HFC refrigerants has been adopted due to the problem of the global environment due to the depletion of the ozone layer. . These newly adopted refrigerants are free of the substance (chlorine) acting as an extreme pressure agent in the sliding parts of the compressor, and the sliding parts of the compressor (particularly, the mixed lubricating part and boundary lubricating part) are resistant. There was a problem that abrasion property was reduced.
【０００５】そこで、この発明は、前記問題点の解消を
図ったロータリコンプレッサを提供することを目的とし
ている。Accordingly, an object of the present invention is to provide a rotary compressor which solves the above-mentioned problems.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、この発明の請求項１にあっては、摺動し合う複数の
摺動部品を有し、摺動する２面間で、負荷の加わる部品
の総面積が小さい方となる摺動密度が高い摺動部品の硬
度を、摺動密度の低い摺動部品の硬度より、高くしたロ
ータリコンプレッサにおいて、前記硬度が高い摺動部品
の面粗さを、硬度の低い摺動部品の面粗さより、小さく
する。In order to achieve the above object, according to the first aspect of the present invention, there are provided a plurality of sliding parts which slide, and a load is applied between two sliding surfaces. In a rotary compressor in which the hardness of a sliding component having a high sliding density, in which the total area of the components to be added is smaller, is higher than the hardness of a sliding component having a low sliding density, the surface of the sliding component having the higher hardness is higher. The roughness is made smaller than the surface roughness of a sliding component having low hardness.
【０００７】これにより、摺動する２面間の一方の磨耗
量が著しく増大するのを回避することが可能となるの
で、長時間に亘り安定した運転状態が得られるようにな
り、高い信頼性のコンプレッサが実現できる。As a result, it is possible to avoid a remarkable increase in the amount of wear of one of the two sliding surfaces, so that a stable operating state can be obtained for a long time, and high reliability can be obtained. Can be realized.
【０００８】また、この発明の請求項２にあっては、摺
動密度が高い摺動部品と摺動密度が低い摺動部品の２面
間の硬度差がビッカース硬さＨＶで２５０以上となる材
料組合せとする。According to the second aspect of the present invention, the hardness difference between the two surfaces of the sliding component having a high sliding density and the sliding component having a low sliding density is 250 or more in Vickers hardness HV. Use a combination of materials.
【０００９】これにより、摺動密度が高い摺動部品の摩
耗量が著しく改善される。As a result, the amount of wear of a sliding component having a high sliding density is remarkably improved.
【００１０】また、この発明の請求項３にあっては、摺
動密度が高い摺動部品と摺動密度が低い摺動部品の２面
間の硬度差がビッカース硬さＨＶで２５０以上となるよ
う摺動密度が高い摺動部品に表面処理を施す。According to a third aspect of the present invention, the hardness difference between the two surfaces of the sliding component having a high sliding density and the sliding component having a low sliding density is 250 or more in Vickers hardness HV. Surface treatment is applied to sliding parts with high sliding density.
【００１１】これにより、摺動密度が高い摺動部品の摩
耗量が著しく改善される。As a result, the amount of wear of the sliding parts having a high sliding density is remarkably improved.
【００１２】また、この発明の請求項４によれば、表面
処理を窒化処理する。According to a fourth aspect of the present invention, the surface treatment is performed by nitriding.
【００１３】これにより、摺動密度が高い摺動部品の摩
耗量がさらに改善され、長期間に亘り安定した運転状態
が得られる。As a result, the amount of wear of the sliding component having a high sliding density is further improved, and a stable operating state can be obtained for a long period of time.
【００１４】また、この発明の請求項５によれば、窒化
処理された摺動部品と相対摺動する摺動部品が、硬度
（ＨｒＣ）４５以上の合金鋳鉄であり、面粗さが、窒化
処理された摺動部品でＲｚ＝２．５以下，合金鋳鉄でＲ
ｚ＝３．０以下であることを特徴とする。According to a fifth aspect of the present invention, the sliding part which slides relative to the sliding part subjected to the nitriding treatment is an alloy cast iron having a hardness (HrC) of 45 or more, and the surface roughness is reduced. Rz = 2.5 or less for treated sliding parts, R for alloy cast iron
It is characterized in that z is not more than 3.0.
【００１５】これにより、窒化処理された摺動部品と、
合金鋳鉄は、面粗さがそれぞれＲｚ＝２．５以下と３．
０以下となるため、トータルの摩耗量をさらに低減でき
る。また、この発明の請求項６によれば、窒化処理され
た摺動部品はベーンであり、合金鋳鉄から成る摺動部品
はローラであると共に、各摺動部品の面とりを、Ｃ０．
０１以上０．１以下とする。[0015] Thereby, the sliding part subjected to the nitriding treatment,
The alloy cast iron has a surface roughness of Rz = 2.5 or less, respectively.
Since it is 0 or less, the total wear amount can be further reduced. According to a sixth aspect of the present invention, the sliding part subjected to the nitriding treatment is a vane, the sliding part made of alloy cast iron is a roller, and the chamfer of each sliding part is C0.
It is set to be 01 or more and 0.1 or less.
【００１６】これにより、圧縮室の気密性が向上し、性
能効率のアップが図れる。Thus, the airtightness of the compression chamber is improved, and the performance efficiency can be improved.
【００１７】また、この発明の請求項７によれば、表面
処理は、窒化処理後、バレル処理あるいはバフ研磨ある
いはショットピーニング処理を行なう。According to a seventh aspect of the present invention, the surface treatment is performed by a barrel treatment, a buff polishing, or a shot peening treatment after the nitriding treatment.
【００１８】これにより、摺動密度が高い摺動部品の面
粗さが、良り改善するだけでなく、表面の圧縮残留応力
を増加し、摺動し合う２面間の硬度差と相俟って摩耗量
が著しく低減するようになる。As a result, not only the surface roughness of the sliding component having a high sliding density is improved, but also the compressive residual stress on the surface is increased, which is combined with the hardness difference between the two sliding surfaces. As a result, the amount of wear is significantly reduced.
【００１９】また、この発明の請求項８によれば、ショ
ットピーニング処理は、０．４ｍｍ以下のショット材を
用い、噴出速度１００ｍ／ｓ以上で行なわれ、圧縮残留
応力を１０００ＭＰａとする。According to the eighth aspect of the present invention, the shot peening is performed using a shot material of 0.4 mm or less at a jetting speed of 100 m / s or more, and the compressive residual stress is set to 1000 MPa.
【００２０】これにより、摺動密度が高い摺動部品の表
面に、一時にエネルギが負荷されると共に、１０００Ｍ
Ｐａとなる圧縮残留応力により、優れた耐摩耗性が確保
される。As a result, energy is applied to the surface of the sliding component having a high sliding density at a time,
Due to the compressive residual stress of Pa, excellent wear resistance is secured.
【００２１】また、この発明の請求項９によれば、ベー
ンは窒化処理した後、その上層に、周期律表ＩＶ族ある
いはＶ族あるいはＶＩ族の金属あるいは、それらの複合
金属の窒化物層を形成する。According to a ninth aspect of the present invention, after the vane is nitrided, a nitride layer of a metal belonging to Group IV, V, or VI of the periodic table, or a composite metal thereof is formed on the vane. Form.
【００２２】これにより、ベーンは、窒化処理のみの場
合に比べて、さらに良好な耐摩耗性の向上が図れる。As a result, the vane can have better wear resistance as compared with the case where only the nitriding treatment is performed.
【００２３】また、この発明の請求項１０によれば、ベ
ーンの表面粗さを、Ｒｚ＝２．０以下、相手材を合金鋳
鉄としその表面粗さをＲｚ＝２．５以下とする。According to a tenth aspect of the present invention, the surface roughness of the vane is set to Rz = 2.0 or less, and the mating material is made of alloy cast iron and the surface roughness is set to Rz = 2.5 or less.
【００２４】これにより、ベーンの表面粗さと合金鋳鉄
の表面粗さが改善されてトータルの耐摩耗性が向上す
る。As a result, the surface roughness of the vane and the surface roughness of the alloy cast iron are improved, and the total wear resistance is improved.
【００２５】また、この発明の請求項１１によれば、ベ
ーンは、面取りをＣ０．０１以上、０．１以下とする。Further, according to the eleventh aspect of the present invention, the chamfer of the vane is C0.01 or more and 0.1 or less.
【００２６】これにより、圧縮室の気密性が向上し良好
な圧縮性能が得られる。Thus, the airtightness of the compression chamber is improved, and good compression performance can be obtained.
【００２７】また、この発明の請求項１２によれば、使
用する冷媒は、ＨＦＣ冷媒，あるいはＨＣ冷媒，あるい
はＣＯ2 と塩素を含まない冷媒とする。According to a twelfth aspect of the present invention, the refrigerant used is an HFC refrigerant, an HC refrigerant, or a refrigerant containing neither CO 2 nor chlorine.
【００２８】これにより、摺動部品の少なくとも一方で
鉄系金属となるため、塩素を含む冷媒下で発生するよう
な鉄の塩化物が形成されないため、耐摩耗的効果が現わ
れ、信頼性の向上が図れる。As a result, since at least one of the sliding parts is made of an iron-based metal, an iron chloride, which is generated under a refrigerant containing chlorine, is not formed. Can be achieved.
【００２９】[0029]
【発明の実施の形態】以下、図１乃至図４の図面を参照
しながらこの発明の実施形態について具体的に説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to FIGS.
【００３０】図１において、１はロータリコンプレッサ
３の密閉ケースを示している。密閉ケース１は、上端部
に吐出管５を有すると共に、内部には、電動機構部７と
圧縮機構部９がそれぞれ配置されている。In FIG. 1, reference numeral 1 denotes a sealed case of the rotary compressor 3. The sealed case 1 has a discharge pipe 5 at the upper end, and an electric mechanism 7 and a compression mechanism 9 are respectively disposed inside.
【００３１】電動機構部７は、密閉ケース１の内壁面に
固着されたステータ１１と、シャフト１３に装着された
ロータ１５とから成り、ステータ１１が通電されること
でロータ１５を介して前記シャフト１３に回転動力が与
えられるようになっている。The electric mechanism 7 comprises a stator 11 fixed to the inner wall surface of the sealed case 1 and a rotor 15 mounted on the shaft 13. 13 is provided with rotational power.
【００３２】圧縮機構部９は、フレーム１６を介して密
閉ケース１の内壁面に固着されたシリンダ１７と、シリ
ンダ１７内に配置されたローラ１９とで構成され、この
実施形態ではシングルタイプとなっているが、ツインタ
イプであってもよい。The compression mechanism 9 is composed of a cylinder 17 fixed to the inner wall surface of the sealed case 1 via a frame 16 and a roller 19 arranged in the cylinder 17. In this embodiment, a single type is used. However, it may be a twin type.
【００３３】ローラ１９は、前記シャフト１３に設けら
れた偏心軸部２１に嵌挿され、偏心軸部２１の回転によ
って偏心回転が与えられるようになっている。The roller 19 is fitted into an eccentric shaft 21 provided on the shaft 13 so that eccentric rotation is given by rotation of the eccentric shaft 21.
【００３４】シャフト１３は、主軸受部材２３と副軸受
部材２５とにより回転自在に軸支され、主軸受部材２３
には吐出ポート２７が設けられている。The shaft 13 is rotatably supported by a main bearing member 23 and a sub bearing member 25.
Is provided with a discharge port 27.
【００３５】シリンダ１７には、吸込管２９と連通し合
う吸込ポート３１と、ばね等による付勢手段３２によっ
て前記ローラ１９の外周面と常時接触し合うプレート状
のベーン３３が設けられ、シリンダ１７，ローラ１９，
ベーン３３とにより冷媒を圧縮する圧縮室３５が作られ
るようになっている。冷媒は、ＨＦＣ冷媒が用いられる
が、ＨＣ冷媒，あるいはＣＯ2 と塩素を含まない冷媒で
あってもよい。The cylinder 17 is provided with a suction port 31 communicating with a suction pipe 29 and a plate-shaped vane 33 which is always in contact with the outer peripheral surface of the roller 19 by a biasing means 32 such as a spring. , Roller 19,
A compression chamber 35 for compressing the refrigerant is formed by the vane 33. As the refrigerant, an HFC refrigerant is used, but an HC refrigerant or a refrigerant containing neither CO 2 nor chlorine may be used.
【００３６】圧縮室３５は、前記吐出ポート２７と連通
し、吐出ポート２７はマフラ３７により覆われると共
に、吐出弁３９と吐出弁３９の開度を制限する弁ストッ
パ４１を有している。The compression chamber 35 communicates with the discharge port 27. The discharge port 27 is covered with a muffler 37 and has a discharge valve 39 and a valve stopper 41 for limiting the opening of the discharge valve 39.
【００３７】なお、マフラ３７の周縁フランジは、ボル
ト４３により前記主軸受部材２３に固着され、上面に
は、マフラ吐出口４５が設けられている。The peripheral flange of the muffler 37 is fixed to the main bearing member 23 by bolts 43, and a muffler discharge port 45 is provided on the upper surface.
【００３８】このように構成されたロータリコンプレッ
サ３において、負荷の加わる部分の総面積が小さい方と
なる摺動密度が高いベーン３３を、ステンレス鋼あるい
は工具鋼に窒化処理を施し、表面硬度をＨＶ１０００以
上とする一方、ベーン３３と相対摺動し合う摺動密度の
低いローラ１９を、モリブデン，ニッケル，クロムを含
有する硬度ＨｒＣ５０（ＨＶ５２０相当）程度の合金鋳
鉄を用いると、硬度差がビッカース硬さＨＶで２５０以
上となる。このため、例えば、図４に示す如く一方のベ
ーン３３をＨｒＣ６０（ＨＶ７００相当）軸受け鋼にし
て硬度差が充分でない時に比較して、トータル摩耗量が
著しく改善されることがわかる。また、冷媒は、一方が
鉄系金属となるため、塩度を含む冷媒下で発生するよう
な塩化物が形成されないことと相俟って確実な潤滑が確
保され、信頼性の高いロータリコンプレッサが実現でき
る。In the rotary compressor 3 configured as described above, a vane 33 having a high sliding density, which has a smaller total area of a portion to which a load is applied, is subjected to nitriding treatment on stainless steel or tool steel to have a surface hardness of HV1000. On the other hand, when the roller 19 having a low sliding density, which slides relatively with the vane 33, is made of an alloy cast iron having a hardness of about HrC50 (equivalent to HV520) containing molybdenum, nickel, and chromium, the hardness difference becomes Vickers hardness. It becomes 250 or more in HV. Therefore, for example, as shown in FIG. 4, it can be seen that the total wear amount is significantly improved as compared with a case where one of the vanes 33 is made of HrC60 (HV700 equivalent) bearing steel and the hardness difference is not sufficient. In addition, since one of the refrigerants is an iron-based metal, reliable lubrication is ensured in combination with the formation of chlorides generated under a refrigerant containing salinity, and a highly reliable rotary compressor is provided. realizable.
【００３９】一方、窒化処理されたベーン３３と、相対
摺動するローラ１９の硬度（ＨｒＣ）４５以上の合金鋳
鉄の面粗さ（Ｒｚ）が窒化処理された場合でＲｚ＝３．
０以下、合金鋳鉄でＲｚ＝２．５以下とすることで、図
５に示す如くトータル摩耗量を低い所で抑えることが可
能となる。On the other hand, when the surface roughness (Rz) of the alloy cast iron having a hardness (HrC) of 45 or more of the vane 33 subjected to the nitriding treatment and the roller 19 sliding relative to each other is subjected to the nitriding treatment, Rz = 3.
By setting Rz to be equal to or less than 0 and Rz being equal to or less than 2.5 for the alloy cast iron, it is possible to suppress the total wear amount at a low place as shown in FIG.
【００４０】ちなみに、ステンレス鋼に窒化処理を施し
たベーン３３と、モリブデン，ニッケル，クロムを含有
した合金鋳鉄のローラ１９とにおいて、ローラ１９の面
粗さＲｚ＝２．５とし、ベーン３３の面粗さを割付耐久
試験（Ｒ４１０Ａ冷媒下で、吐出圧力４．３ＭＰａ、吸
込み圧力１．０ＭＰａ、吐出ガス温度１２５℃にて１０
００ｈ）を行なった時に、図５に示す如くベーン３３の
面粗さがＲｚ＝３．０を越えると、トータル摩耗量が急
速に増加することがわかる。In the meantime, in the vane 33 obtained by nitriding stainless steel and the roller 19 made of alloy cast iron containing molybdenum, nickel and chromium, the surface roughness of the roller 19 is set to Rz = 2.5, Roughness is assigned to a durability test (under R410A refrigerant at a discharge pressure of 4.3 MPa, a suction pressure of 1.0 MPa, and a discharge gas temperature of 125 ° C.
00h), when the surface roughness of the vane 33 exceeds Rz = 3.0 as shown in FIG. 5, it can be seen that the total wear increases rapidly.
【００４１】前記実施形態にあっては、表面を窒化処理
した手段となっているが、窒化処理後、バレル処理、バ
フ研磨、ショットピーニング処理を用いることにより、
表面粗さを改善するだけでなく、表面の圧縮残留応力を
１０００ＭＰａとなるよう増加させることが可能とな
り、さらに良好な耐摩耗性が得られる。In the above-described embodiment, the surface is nitrified, but after nitriding, barrel processing, buffing, and shot peening are used.
In addition to improving the surface roughness, it is possible to increase the compressive residual stress on the surface so as to be 1000 MPa, and to obtain better wear resistance.
【００４２】この場合、例えばショットピーニング処理
にあっては、０．４ｍｍ以下のショット材を用い、噴出
速度１００ｍ／ｓ以上で行なうことで、表面にエネルギ
ーが負荷され、圧縮残留応力を１０００ＭＰａに出来る
ようになる。In this case, for example, in the shot peening process, by using a shot material of 0.4 mm or less and performing ejection at a speed of 100 m / s or more, energy is applied to the surface and the compressive residual stress can be made 1000 MPa. Become like
【００４３】また、窒化処理されたベーン３３につい
て、表面粗さを向上させた後に、さらにその上層に、周
期律表ＩＶ，Ｖ，ＶＩ、あるいはそれらの複合金属の窒
化物層を形成し、ベーン３３の表面粗さをＲｚ＝２．５
以下、ローラ１９を合金鋳鉄で表面粗さＲｚ＝２．０以
下とすることで、窒化処理のみに比べて、さらに良好な
耐摩耗性が得られるようになり、信頼性の高いロータリ
コンプレッサが実現できる。After the surface roughness of the nitrided vane 33 is improved, a nitride layer of the periodic table IV, V, VI, or a composite metal thereof is further formed thereon to form a vane. Rz = 2.5
Hereinafter, by setting the roller 19 to a surface roughness Rz of 2.0 or less with alloy cast iron, a better wear resistance can be obtained as compared with only the nitriding treatment, and a highly reliable rotary compressor is realized. it can.
【００４４】また、図３に示す如く、ベーン３３及びロ
ーラ１９の面取りＲを、Ｃ０．０１以上０．１以下とす
ることで、圧縮室３５の良好な気密を確保し、性能向上
が図れる。Further, as shown in FIG. 3, by setting the chamfer R of the vane 33 and the roller 19 to C0.01 or more and 0.1 or less, good airtightness of the compression chamber 35 is ensured, and performance can be improved.
【００４５】特に、面取りＲが０．１を越えるとローラ
１９、ベーン３３及びシリンダ１７とにより形成される
圧縮室３５の気密性が急激に低下し、体積効率が悪化す
ることがわかっている。これは、面取りＲを０．０１以
下とすると、平面あるいは曲面加工時に発生するバリが
完全に除去できないこと、また、適当な油膜が保持でき
ない等の理由により、焼付きや異常摩耗等の信頼性問題
が発生するものと考えられる。In particular, it has been found that when the chamfer R exceeds 0.1, the airtightness of the compression chamber 35 formed by the roller 19, the vane 33 and the cylinder 17 sharply decreases, and the volume efficiency deteriorates. This is because if the chamfer R is 0.01 or less, the burrs generated during flat or curved surface processing cannot be completely removed, and the reliability such as seizure and abnormal wear cannot be maintained because an appropriate oil film cannot be retained. It is likely that a problem will occur.
【００４６】[0046]
【発明の効果】以上、説明したように、この発明のロー
タリコンプレッサによれば、摺動する２面間の耐摩耗性
の向上を図ることが出来るため、長期間に亘り安定した
運転状態が得られる。これにより信頼性の高いロータリ
コンプレッサが実現できる。As described above, according to the rotary compressor of the present invention, the wear resistance between the two sliding surfaces can be improved, so that a stable operation state can be obtained for a long period of time. Can be As a result, a highly reliable rotary compressor can be realized.
【図１】この発明にかかるロータリコンプレッサの概要
切断面図。FIG. 1 is a schematic sectional view of a rotary compressor according to the present invention.
【図２】シリンダ、ローラ、ベーンの関係を示した断面
図。FIG. 2 is a cross-sectional view illustrating a relationship among a cylinder, a roller, and a vane.
【図３】ローラとベーンの斜視図。FIG. 3 is a perspective view of a roller and a vane.
【図４】材質によるベーンとローラのトータル摩耗量の
説明図。FIG. 4 is an explanatory diagram of a total wear amount of a vane and a roller depending on a material.
【図５】面粗さによるベーンとローラのトータル摩耗量
の説明図。FIG. 5 is an explanatory diagram of a total wear amount of a vane and a roller due to surface roughness.
１９ ローラ（摺動部品） ３３ ベーン（摺動部品） 19 Rollers (sliding parts) 33 Vane (sliding parts)
Claims (12)
する２面間で、負荷の加わる部品の総面積が小さい方と
なる摺動密度が高い摺動部品の硬度を、摺動密度の低い
摺動部品の硬度より、高くしたロータリコンプレッサに
おいて、前記硬度が高い摺動部品の面粗さを、硬度の低
い摺動部品の面粗さより、小さくしたことを特徴とする
ロータリコンプレッサ。1. The hardness of a sliding part having a high sliding density, which has a plurality of sliding parts sliding on each other and has a smaller total area of the parts to which a load is applied between two sliding surfaces, A rotary compressor having a higher hardness than a sliding component having a low sliding density, wherein a surface roughness of the sliding component having a high hardness is smaller than a surface roughness of a sliding component having a low hardness. compressor.
い摺動部品の２面間の硬度差がビッカース硬さＨＶで２
５０以上となる材料組合せとしたことを特徴とする請求
項１記載のロータリコンプレッサ。2. A hardness difference between two surfaces of a sliding component having a high sliding density and a sliding component having a low sliding density is 2 in Vickers hardness HV.
2. The rotary compressor according to claim 1, wherein the material combination is 50 or more.
い摺動部品の２面間の硬度差がビッカース硬さＨＶで２
５０以上となるよう摺動密度が高い摺動部品に表面処理
を施したことを特徴とする請求項１記載のロータリコン
プレッサ。3. The hardness difference between two surfaces of a sliding component having a high sliding density and a sliding component having a low sliding density is 2 in Vickers hardness HV.
2. The rotary compressor according to claim 1, wherein a surface treatment is applied to a sliding part having a high sliding density so as to be 50 or more.
とする請求項３記載のロータリコンプレッサ。4. The rotary compressor according to claim 3, wherein the surface treatment is a nitriding treatment.
摺動部品が、硬度（ＨｒＣ）４５以上の合金鋳鉄であ
り、面粗さが、窒化処理された摺動部品でＲｚ＝２．５
以下，合金鋳鉄でＲｚ＝３．０以下であることを特徴と
する請求項４記載のロータリコンプレッサ。5. A sliding part which slides relative to a nitriding-treated sliding part is an alloy cast iron having a hardness (HrC) of 45 or more, and has a surface roughness Rz = 2 in a nitriding-treated sliding part. .5
5. The rotary compressor according to claim 4, wherein Rz is 3.0 or less in alloy cast iron.
り、合金鋳鉄から成る摺動部品はローラであると共に、
各摺動部品の面とりが、Ｃ０．０１以上０．１以下であ
ることを特徴とする請求項４又は５のいずれかに記載の
ロータリコンプレッサ。6. The sliding part subjected to the nitriding treatment is a vane, and the sliding part made of alloy cast iron is a roller.
The rotary compressor according to any one of claims 4 and 5, wherein a chamfer of each sliding component is C0.01 or more and 0.1 or less.
るいはバフ研磨あるいはショットピーニング処理を行な
うことを特徴とする請求項３記載のロータリコンプレッ
サ。7. The rotary compressor according to claim 3, wherein the surface treatment includes a barrel treatment, a buff polishing, or a shot peening treatment after the nitriding treatment.
以下のショット材を用い、噴出速度１００ｍ／ｓ以上で
行なわれ、圧縮残留応力が１０００ＭＰａであることを
特徴とする請求項７記載のロータリコンプレッサ。8. The shot peening process is performed by 0.4 mm
The rotary compressor according to claim 7, wherein the following shot material is used and the ejection speed is 100 m / s or more, and the compressive residual stress is 1000 MPa.
周期律表ＩＶ族あるいはＶ族あるいはＶＩ族の金属ある
いは、それらの複合金属の窒化物層を形成したことを特
徴とする請求項６記載のロータリコンプレッサ。9. After the vane is nitrided, the vane is
7. The rotary compressor according to claim 6, wherein a nitride layer of a metal of Group IV, V, or VI of the periodic table or a composite metal thereof is formed.
下、相手材を合金鋳鉄としその表面粗さをＲｚ＝２．５
以下としたことを特徴とする請求項９記載のロータリコ
ンプレッサ。10. A vane having a surface roughness of Rz = 2.0 or less and a mating material of an alloy cast iron having a surface roughness of Rz = 2.5.
The rotary compressor according to claim 9, wherein:
０．１以下であることを特徴とする請求項１０記載のロ
ータリコンプレッサ。11. The vane has a chamfer of C0.01 or more,
The rotary compressor according to claim 10, wherein the value is 0.1 or less.
はＨＣ冷媒，あるいはＣＯ2 と塩素を含まない冷媒であ
ることを特徴とする請求項１から１１記載のロータリコ
ンプレッサ。12. The rotary compressor according to claim 1, wherein the refrigerant used is an HFC refrigerant, an HC refrigerant, or a refrigerant containing no CO 2 and chlorine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22480898A JP3958443B2 (en) | 1998-08-07 | 1998-08-07 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22480898A JP3958443B2 (en) | 1998-08-07 | 1998-08-07 | Rotary compressor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000054973A true JP2000054973A (en) | 2000-02-22 |
| JP2000054973A5 JP2000054973A5 (en) | 2005-08-25 |
| JP3958443B2 JP3958443B2 (en) | 2007-08-15 |
Family
ID=16819540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22480898A Expired - Fee Related JP3958443B2 (en) | 1998-08-07 | 1998-08-07 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3958443B2 (en) |
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