JPH08144975A - Rotary compressor vane and manufacture thereof - Google Patents
Rotary compressor vane and manufacture thereofInfo
- Publication number
- JPH08144975A JPH08144975A JP28513994A JP28513994A JPH08144975A JP H08144975 A JPH08144975 A JP H08144975A JP 28513994 A JP28513994 A JP 28513994A JP 28513994 A JP28513994 A JP 28513994A JP H08144975 A JPH08144975 A JP H08144975A
- Authority
- JP
- Japan
- Prior art keywords
- vane
- sliding member
- rotary compressor
- protective film
- roller
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷凍冷蔵装置や空調機等
に用いられるロータリー圧縮機のベーンおよびその製造
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vane of a rotary compressor used for a refrigerating machine, an air conditioner and the like, and a method for manufacturing the vane.
【０００２】[0002]
【従来の技術】近年、ロータリー圧縮機の主要構成部品
であるベーンの耐摩耗性を良化して、ロータリー圧縮機
の信頼性を高くした発明がなされている（例えば、実開
平４−１０４１９３号公報参照）。2. Description of the Related Art In recent years, inventions have been made in which the wear resistance of vanes, which are the main components of a rotary compressor, is improved to improve the reliability of the rotary compressor (for example, Japanese Utility Model Laid-Open No. 4-104193). reference).
【０００３】以下、従来のロータリー圧縮機のベーンの
一例について説明する。図６に示すようにロータリー圧
縮機の本体１は、密閉シェル２に焼きばめされたステー
タ３と、ステータ３と一対でモータを構成するロータ４
と、ロータ４に焼きばめされたシャフト５を備え、ま
た、シャフト５の偏心部に組み込まれたローラ６と、ロ
ーラ６を収納するシリンダ７と、シャフト５の主軸受け
８および副軸受け９と、密閉シェル２に溶接され、かつ
一端が副軸受け９に圧入された吸入管１０を備えてい
る。なお、図中の１１は吐出管、１２は冷凍機油１３を
吸い上げるポンプである。An example of a conventional vane of a rotary compressor will be described below. As shown in FIG. 6, a main body 1 of the rotary compressor includes a stator 3 shrink-fitted in a hermetic shell 2, and a rotor 4 that constitutes a motor with the stator 3 as a pair.
A rotor 6 having a shaft 5 shrink-fitted to the rotor 4, a roller 6 incorporated in an eccentric part of the shaft 5, a cylinder 7 for housing the roller 6, a main bearing 8 and a sub-bearing 9 of the shaft 5. The suction pipe 10 is welded to the closed shell 2 and has one end press-fitted into the auxiliary bearing 9. In the figure, 11 is a discharge pipe, and 12 is a pump for sucking up the refrigerating machine oil 13.
【０００４】図７は図６のＢ−Ｂ’断面であり、先端が
円弧状のベーン１４がシリンダ７の溝１５内に収納さ
れ、かつその先端部がローラ６の外周部と接触摺動し、
シリンダ７内を吸入室と吐出室に分割した構成となって
いる。なお、ベーン１４は、スプリング１６によるバネ
力およびシリンダ７の内外の圧力差による力によって、
ローラ６の外周面に押し付けられる。また、ベーン１４
とローラ６の接触部を拡大して図８に示す。ベーン１４
の先端部はＲ＝３．２ｍｍの凸曲面を有し、ベーン幅お
よび高さ（奥行き）はそれぞれ３．２ｍｍと１６．５ｍ
ｍ程度である。なお、シリンダ７の溝１５および主軸受
け８、副軸受け９と接触摺動するベーン１４の側面部は
平面状である。FIG. 7 is a sectional view taken along the line BB 'of FIG. 6, in which the vane 14 having an arcuate tip is housed in the groove 15 of the cylinder 7, and the tip of the vane 14 slides in contact with the outer peripheral portion of the roller 6. ,
The inside of the cylinder 7 is divided into a suction chamber and a discharge chamber. In addition, the vane 14 is changed by the spring force of the spring 16 and the force due to the pressure difference between the inside and the outside of the cylinder 7.
It is pressed against the outer peripheral surface of the roller 6. Also, vane 14
The contact portion between the roller 6 and the roller 6 is enlarged and shown in FIG. Vane 14
Has a convex curved surface with R = 3.2 mm, and the vane width and height (depth) are 3.2 mm and 16.5 m, respectively.
m. The side surface of the vane 14 that slides in contact with the groove 15 of the cylinder 7 and the main bearing 8 and the sub bearing 9 is flat.
【０００５】以上のように構成されたロータリー圧縮機
について、以下その動作を説明する。ステータ３とロー
タ４で構成するモータによりシャフト５が回転し、これ
に伴ってローラ６が偏心回転することにより、吸入管１
０を通ってシリンダ７内に導入された冷媒ガスが圧縮さ
れる。シリンダ７内で圧縮された冷媒ガスは、密閉シェ
ル２内に吐出された後、吐出管１１から密閉シェル２外
に噴出する。このようにロータリー圧縮機では、ベーン
１４がローラ６の偏心回転運動に応じて、シリンダ７の
溝１５に沿って往復運動を行う際に、ベーン１４の先端
部は、バネ力及びシリンダ内外の圧力差によって荷重さ
れた状態で、ローラ６の外周面と摺動するので、ベーン
１４の先端とローラ６の外周面に摩耗が起こる。さら
に、シャフト５は、シャフト５の回転を支持する主軸受
け８および副軸受け９の軸受け部と摺動するので、シャ
フト５および軸受け面が摩耗しやすい。The operation of the rotary compressor configured as described above will be described below. The shaft 5 is rotated by a motor composed of the stator 3 and the rotor 4, and the roller 6 is eccentrically rotated accordingly.
The refrigerant gas introduced into the cylinder 7 through 0 is compressed. The refrigerant gas compressed in the cylinder 7 is discharged into the closed shell 2 and then ejected from the discharge pipe 11 to the outside of the closed shell 2. As described above, in the rotary compressor, when the vane 14 reciprocates along the groove 15 of the cylinder 7 according to the eccentric rotational movement of the roller 6, the tip end of the vane 14 has a spring force and pressures inside and outside the cylinder. Since the roller slides on the outer peripheral surface of the roller 6 while being loaded by the difference, the tip of the vane 14 and the outer peripheral surface of the roller 6 are worn. Furthermore, since the shaft 5 slides on the bearing portions of the main bearing 8 and the auxiliary bearing 9 that support the rotation of the shaft 5, the shaft 5 and the bearing surface are easily worn.
【０００６】そこで、摺動部の動作を円滑にするため、
本体１の密閉シェル２内には冷凍機油１３が収容されて
いて、冷凍機油１３はポンプ１２によって吸い上げら
れ、副軸受け９を潤滑した後、シリンダ７内に導入さ
れ、ローラ６とベーン１４の摺動部に供給される。ま
た、冷凍機油１３は、シリンダ７の内外の圧力差によっ
ても、ベーン１４とシリンダ７の溝１５との隙間を通し
て、シリンダ７内に導入され、ローラ６とベーン１４の
摺動部に供給される。このようにして摺動部に供給され
た冷凍機油は、摺動部を潤滑し摩耗を減少させる。Therefore, in order to make the operation of the sliding portion smooth,
The refrigerating machine oil 13 is housed in the closed shell 2 of the main body 1. The refrigerating machine oil 13 is sucked up by the pump 12, lubricates the auxiliary bearing 9, and then is introduced into the cylinder 7 to slide the rollers 6 and the vanes 14. It is supplied to the moving part. The refrigerating machine oil 13 is also introduced into the cylinder 7 through the gap between the vane 14 and the groove 15 of the cylinder 7 by the pressure difference between the inside and the outside of the cylinder 7, and is supplied to the sliding portion between the roller 6 and the vane 14. . The refrigerating machine oil thus supplied to the sliding portion lubricates the sliding portion and reduces wear.
【０００７】一般にベーン１４は硬度がロックウエルＣ
スケールで５５〜６５の高速度工具鋼製、ローラ６は硬
度がロックウエルＣスケールで４５〜５５の鋳鉄製、シ
ャフト５、主軸受け８、副軸受け９およびシリンダ７は
硬度がビッカースで１６０〜２５０の鋳鉄製が用いられ
ている。Generally, the hardness of the vane 14 is Rockwell C.
The scale is made of high speed tool steel of 55 to 65, the roller 6 is made of cast iron having a hardness of 45 to 55 on the Rockwell C scale, and the shaft 5, the main bearing 8, the auxiliary bearing 9 and the cylinder 7 have a hardness of Vickers of 160 to 250. Cast iron is used.
【０００８】なお、シャフト５および軸受け面の摩耗に
ついては、軸受け部の長さを大きくし、単位面積当たり
の荷重を減少させことにより、改善が可能である。The wear of the shaft 5 and the bearing surface can be improved by increasing the length of the bearing portion and reducing the load per unit area.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、上記の
従来の構成では、ベーン１４の先端部が、(1)バネ力及
びシリンダ内外の大きな圧力差によって荷重された状態
で、ローラ６ の外周面と接触摺動するため、さらに
(2)ローラ６が偏心回転運動することにより、ベーン１
４とローラ６の摺動速度が 最大１ｍ／ｓｅｃ程度と非
常に高速で摺動するため、ベーン１４とローラ６の接触
摺動条件は非常に過酷なものとなる。このため、ベーン
１４の先端部およびローラ６の外周面に著しく大きな摩
耗が発生するという問題点を有していた。However, in the above-mentioned conventional structure, the tip of the vane 14 is (1) loaded with the spring force and the large pressure difference between the inside and the outside of the cylinder and the outer peripheral surface of the roller 6. Because of sliding contact,
(2) Due to the eccentric rotational movement of the roller 6, the vane 1
Since the sliding speed of the roller 4 and the roller 6 slides at a very high speed of about 1 m / sec at the maximum, the contact sliding condition of the vane 14 and the roller 6 becomes extremely severe. Therefore, there is a problem in that the tip of the vane 14 and the outer peripheral surface of the roller 6 are significantly worn.
【００１０】本発明は上記従来のロータリー圧縮機の課
題を解決するもので、ベーンおよびローラの耐摩耗性が
良くて信頼性が高く、ロータリー圧縮機の長寿命化を可
能とするロータリー圧縮機のベーン、およびそのベーン
を歩留り良く低コストで量産できる製造方法を提供する
ことを目的とする。The present invention solves the above-mentioned problems of the conventional rotary compressor, and provides a highly reliable rotary vane and roller with high wear resistance, and a rotary compressor having a long service life. An object of the present invention is to provide a vane and a manufacturing method capable of mass-producing the vane with a good yield at a low cost.
【００１１】[0011]
【課題を解決するための手段】本発明のロータリー圧縮
機のベーンは、ローラの外周と接触摺動する先端部に回
転可能な摺動部材を設けた構成、あるいは、回転可能な
摺動部材の表面にセラミックス系保護膜を形成した構
成、あるいは、回転可能な摺動部材を収納したベーン基
材の、回転可能な摺動部材と接触摺動する部分に樹脂系
の摺動材料もしくはセラミックス系保護膜を設けた構
成、あるいは、回転可能な摺動部材とその摺動部材を収
納するベーン基材の隙間に潤滑油を供給する給油孔をベ
ーン基材中に設けた構成としたものである。A vane of a rotary compressor according to the present invention has a structure in which a rotatable sliding member is provided at a tip end portion which is in sliding contact with the outer periphery of a roller, or a vane of the rotatable sliding member. A structure in which a ceramic-based protective film is formed on the surface, or a resin-based sliding material or ceramic-based protection on the part of the vane base material that houses the rotatable sliding member in sliding contact with the rotatable sliding member A film is provided, or an oil supply hole for supplying lubricating oil to the gap between the rotatable sliding member and the vane base material housing the sliding member is provided in the vane base material.
【００１２】また、そのベーンの製造方法は、ベーン先
端部に回転可能な摺動部材を形成した後に、摺動部材を
回転させながらその摺動部材の表面にセラミックス系保
護膜を製膜する方法である。The vane manufacturing method is a method of forming a rotatable sliding member on the tip of the vane, and then forming a ceramic protective film on the surface of the sliding member while rotating the sliding member. Is.
【００１３】[0013]
【作用】本発明は、ローラの外周と接触摺動するベーン
先端部に回転可能な摺動部材を設けているため、ロータ
とベーンの相対運動は従来の「すべり運動」から「転が
り運動」となり、ロータとベーン間の摩擦係数が著しく
減少し、ロータとベーンともに摩耗量が減少する。According to the present invention, since the rotatable sliding member is provided at the tip of the vane that slides in contact with the outer circumference of the roller, the relative movement between the rotor and the vane is changed from the conventional "sliding movement" to "rolling movement". The coefficient of friction between the rotor and the vane is significantly reduced, and the wear amount of both the rotor and the vane is reduced.
【００１４】また、回転可能な摺動部材の表面にセラミ
ックス系保護膜を形成することにより、ベーンの耐アブ
レッシブ摩耗性が一層高くなる。さらに、ベーン基材の
回転可能な摺動部材と接触摺動する部分に樹脂系の摺動
材料もしくはセラミックス系保護膜を設けることによ
り、回転可能な摺動部材およびそれと接触するベーン基
材の耐アブレッシブ摩耗性が高くなるとともに、摩擦係
数が低下し摺動損失が減少する。Further, by forming a ceramic-based protective film on the surface of the rotatable sliding member, the vane has a further higher abrasion resistance. Furthermore, by providing a resin-based sliding material or a ceramic-based protective film on the portion of the vane base material that slides in contact with the rotatable slide member, the resistance of the rotatable slide member and the vane base material that comes into contact therewith is improved. Abrasive wear is increased, and the friction coefficient is reduced to reduce sliding loss.
【００１５】さらに、ベーン先端に設けた回転摺動部材
とその摺動部材を収納するベーン基材の隙間に潤滑油を
供給する給油孔をベーン基材中に設けることにより、回
転摺動部材とベーン基材の間に油膜が形成され流体潤滑
状態となるため、回転可能な摺動部材の回転に伴う機械
的損失を低減し、回転摺動部材およびそれと接触するベ
ーン基材の耐摩耗性を高くするのみならず、回転摺動部
材に給油された潤滑油が、ローラとベーンの摺動部にも
供給されることになるため、ローラとベーンの摺動部へ
の冷凍機油供給が確実なものとなる。この結果、ローラ
とベーンの摺動も流体潤滑状態になり易く、両者の摩耗
量が減少する。Further, by providing an oil supply hole for supplying lubricating oil in the gap between the rotary sliding member provided at the tip of the vane and the vane base material housing the sliding member, the rotary sliding member is provided. Since an oil film is formed between the vane base materials to create a fluid lubrication state, the mechanical loss due to the rotation of the rotatable sliding member is reduced, and the wear resistance of the rotary sliding member and the vane base material in contact with it is reduced. In addition to raising the temperature, the lubricating oil supplied to the rotary sliding member is also supplied to the sliding parts of the rollers and vanes, so it is possible to reliably supply the refrigeration oil to the sliding parts of the rollers and vanes. Will be things. As a result, the sliding of the roller and the vane is likely to be in a fluid lubrication state, and the amount of wear of both is reduced.
【００１６】また、本発明の製造方法においては、ベー
ン先端部に回転可能な摺動部材を形成した後に、摺動部
材を回転させながらその摺動部材の表面にセラミックス
系保護膜を製膜するため、小さなベーン材を容易にしか
も大量に製膜ホルダー上に保持し、一挙に製膜可能とな
る。In the manufacturing method of the present invention, after the rotatable sliding member is formed at the tip of the vane, the ceramic-based protective film is formed on the surface of the sliding member while rotating the sliding member. Therefore, a small amount of vane material can be easily and in large quantities held on the film forming holder, and the film can be formed all at once.
【００１７】また、セラミックス系保護膜の切削等の後
加工がないため、加工欠陥の無い保護膜を形成すること
ができる。Further, since there is no post-processing such as cutting of the ceramic-based protective film, it is possible to form a protective film having no processing defects.
【００１８】[0018]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１９】本発明の一実施例のロータリー圧縮機の構
成は、ベーンを除いて図６〜８で説明した構成部分と同
じ部分については、同一符号を付し、その説明を省略す
る。In the structure of the rotary compressor of one embodiment of the present invention, the same parts as those described in FIGS. 6 to 8 except for the vane are designated by the same reference numerals and the description thereof will be omitted.
【００２０】（実施例１）図１（ａ）は本発明の第１の
実施例におけるロータリー圧縮機のベーンとローラの接
触部の要部断面図、および（ｂ）はベーンの斜視図であ
る。ローラ６は外径φ３１ｍｍ、内径φ２１ｍｍ、高さ
（奥行き）１６．５ｍｍの円筒形状である。ベーン１７
は、ベーン基材１８とその先端部に収納した回転可能な
摺動部材１９から構成されている。ベーン基材１８は幅
３．２ｍｍ、高さ（奥行き）１６．５ｍｍの板状であ
り、回転摺動部材１９は径φ２ｍｍ、長さ１６．５ｍｍ
の円柱形状である。ベーン基材１８の先端部には、回転
摺動部材１９の径φ２ｍｍよりも僅かに大きく、断面が
円弧状である窪み２０が形成され、この窪み２０の中に
回転摺動部材１９が収納されている。回転摺動部材１９
とベーン基材１８の隙間は約２５μｍである。ベーン基
材１８と回転摺動部材１９の材質はともに高速度工具鋼
（ＪＩＳ：ＳＫＨ５１、硬度ＨＲＣ６０）であり、ロー
ラ６の材質はＮｉＣｒＭｏ鋳鉄（硬度ＨＲＣ５０）であ
る。(Embodiment 1) FIG. 1 (a) is a sectional view of a main part of a contact portion between a vane and a roller of a rotary compressor according to a first embodiment of the present invention, and FIG. 1 (b) is a perspective view of the vane. . The roller 6 has a cylindrical shape with an outer diameter of 31 mm, an inner diameter of 21 mm, and a height (depth) of 16.5 mm. Vane 17
Is composed of a vane base material 18 and a rotatable sliding member 19 housed at the tip thereof. The vane base material 18 is a plate having a width of 3.2 mm and a height (depth) of 16.5 mm, and the rotary sliding member 19 has a diameter of 2 mm and a length of 16.5 mm.
It has a cylindrical shape. At the tip of the vane base material 18, there is formed a recess 20 having a circular cross section which is slightly larger than the diameter φ2 mm of the rotary sliding member 19, and the rotary sliding member 19 is housed in this recess 20. ing. Rotary sliding member 19
The gap between the vane base material 18 is about 25 μm. The vane base material 18 and the rotary sliding member 19 are both made of high speed tool steel (JIS: SKH51, hardness HRC60), and the roller 6 is made of NiCrMo cast iron (hardness HRC50).
【００２１】ロータリー圧縮機では、ベーン１７の先端
部はローラ６の偏心回転運動に応じて、バネ力及びシリ
ンダ内外の圧力差によって加重された状態で、ローラ６
の外周面と接触摺動するが、本実施例ではベーン１７の
先端に、回転可能な摺動部材１９を設けているため、そ
の回転摺動部材１９はローラ６の外周と接触しながら回
転することになる。In the rotary compressor, the tip of the vane 17 is weighted by the spring force and the pressure difference between the inside and the outside of the cylinder in accordance with the eccentric rotational movement of the roller 6, and the roller 6 is rotated.
Although it slides in contact with the outer peripheral surface of the roller 6, in the present embodiment, since the rotatable sliding member 19 is provided at the tip of the vane 17, the rotating sliding member 19 rotates while contacting the outer periphery of the roller 6. It will be.
【００２２】したがって、ロータとベーンの相対運動は
従来の「すべり運動」から「転がり運動」となるため、
ロータとベーン間にはせん断力が作用しなくなる。この
ため、ロータとベーン間の摩擦係数が著しく減少し、ロ
ーラとベーンともに摩耗量が減少する。Therefore, the relative motion of the rotor and the vane is changed from the conventional "sliding motion" to "rolling motion".
Shearing force no longer acts between the rotor and the vanes. Therefore, the friction coefficient between the rotor and the vane is significantly reduced, and the wear amount of both the roller and the vane is reduced.
【００２３】以上のことから本実施例によれば、ベーン
先端とローラ外周面の摺動条件が著しく緩和されること
になり、ベーン先端とローラ外周面の耐摩耗特性を向上
でき、両者の摩耗量を減少させることができる。As described above, according to this embodiment, the sliding condition between the tip of the vane and the outer peripheral surface of the roller is remarkably alleviated, the wear resistance of the tip of the vane and the outer peripheral surface of the roller can be improved, and the wear of both can be improved. The amount can be reduced.
【００２４】なお、本実施例では、回転可能な摺動部材
１９をベーン基材１７と同じ高速度工具鋼（ＳＫＨ５１
材）としたが、ＰＴＦＥ材、ＰＥＥＫ材、ＰＥＴ材、ナ
イロン６６材、ポリイミド系樹脂材などのエンジニアリ
ングプラスチック樹脂材料を用いた場合には、摺動面に
冷凍機油が乏しい摺動状態でも、樹脂摺動材の自己潤滑
性のため、ローラ外周面が摩耗することはなく、ローラ
の耐摩耗特性をさらに向上できる。In this embodiment, the rotatable sliding member 19 is made of the same high speed tool steel as the vane base material 17 (SKH51).
However, when an engineering plastic resin material such as PTFE material, PEEK material, PET material, nylon 66 material, or polyimide resin material is used, even if the sliding surface is low in refrigerating machine oil, the resin Due to the self-lubricating property of the sliding material, the outer peripheral surface of the roller is not worn and the wear resistance of the roller can be further improved.
【００２５】また、回転可能な摺動部材１９を窒化クロ
ム、窒化珪素、炭化珪素、カーボン系などのセラミック
ス材料とした場合にも、ローラ材がＮｉＣｒＭｏ鋳鉄材
であり、ローラとベーン間の摺動は全く異種材料の摺動
となるため、ローラとベーンの凝着摩耗が発生すること
はなく、ローラとベーンともに摩耗量が一層減少する。When the rotatable sliding member 19 is made of a ceramic material such as chromium nitride, silicon nitride, silicon carbide or carbon, the roller material is NiCrMo cast iron material, and the sliding between the roller and the vane. Since the different types of materials are slid on each other, adhesive wear between the roller and the vane does not occur, and the wear amount of the roller and the vane is further reduced.
【００２６】（実施例２）以下本発明の第２の実施例に
ついて図面を参照しながら説明する。(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.
【００２７】図２は本発明の第２の実施例におけるロー
タリー圧縮機のベーンとローラの接触部の要部断面図で
ある。本実施例が前述の実施例１と異なるのは、回転可
能な摺動部材２１の表面に炭素主成分のダイヤモンド状
薄膜（ＤＬＣ薄膜）２２を約１μm形成している点であ
る。なお、製造方法については第５の実施例の説明の所
で詳述する。FIG. 2 is a sectional view of the essential parts of the contact portion between the vane and the roller of the rotary compressor according to the second embodiment of the present invention. The present embodiment is different from the above-described first embodiment in that a diamond-like thin film (DLC thin film) 22 containing carbon as a main component is formed on the surface of a rotatable sliding member 21 in a thickness of about 1 μm. The manufacturing method will be described in detail in the explanation of the fifth embodiment.
【００２８】このように、ベーン基材２３の先端部に設
置した回転可能な摺動部材２１の表面にＤＬＣ膜２２を
形成すれば、ＤＬＣ膜２２自体が高硬度であるため耐ア
ブレッシブ摩耗性が一層高くなるのみならず、摩擦係数
を低減することが可能となる。したがって、回転摺動部
材２１とローラ６間、および回転摺動部材２１とベーン
基材２３間の摩擦損失による機械損失の低減に効果を有
するのみならず、ローラとベーンの摩耗量が減少する。As described above, when the DLC film 22 is formed on the surface of the rotatable sliding member 21 installed at the tip of the vane base material 23, the DLC film 22 itself has a high hardness, so that the abrasive wear resistance is high. Not only is it higher, but it is possible to reduce the coefficient of friction. Therefore, not only is it effective in reducing mechanical loss due to friction loss between the rotary sliding member 21 and the roller 6 and between the rotary sliding member 21 and the vane base material 23, but also the amount of wear of the roller and the vane is reduced.
【００２９】したがって、上記構成によれば、ベーン先
端とローラ外周面の耐摩耗特性を一層向上でき、さら
に、機械的損失を減少させ、圧縮機の高効率化を図るこ
とが可能となる。Therefore, according to the above construction, it is possible to further improve the wear resistance characteristics of the vane tip and the roller outer peripheral surface, further reduce the mechanical loss, and improve the efficiency of the compressor.
【００３０】なお、本実施例では、回転摺動部材２１の
表面にダイヤモンド状薄膜（ＤＬＣ薄膜）２２を形成し
たが、窒化クロムＣｒ2Ｎ膜などのセラミックス系保護
膜を回転摺動部材の表面に形成したしても、上述と同様
な効果が得られることは言うまでもない。Although the diamond-like thin film (DLC thin film) 22 is formed on the surface of the rotary sliding member 21 in this embodiment, a ceramic-based protective film such as a chromium nitride Cr 2 N film is used on the surface of the rotary sliding member. It goes without saying that the same effect as described above can be obtained even if the above-mentioned structure is formed.
【００３１】（実施例３）図３は本発明の他の実施例で
あるロータリー圧縮機のベーンとローラの接触部の要部
断面図である。図３に示すように、本実施例の特徴とす
るところは、前述の実施例１のベーンにおいて、回転可
能な摺動部材２４と接触摺動するベーン基材２５先端部
に形成した、断面が円弧状である窪み２６の表面にポリ
イミド系樹脂材料層２７（厚さ０．３ｍｍ）を設けた点
である。ベーン基材２５とポリイミド系樹脂材料層２７
の接着強度を高めるため、ベーン基材２５先端部の円弧
状の窪み２６の表面は大きな表面粗さとしている。(Embodiment 3) FIG. 3 is a sectional view of a main portion of a contact portion between a vane and a roller of a rotary compressor according to another embodiment of the present invention. As shown in FIG. 3, the feature of the present embodiment is that the cross section formed in the tip of the vane base material 25 that slides in contact with the rotatable sliding member 24 in the vane of the above-described first embodiment is The point is that a polyimide resin material layer 27 (thickness 0.3 mm) is provided on the surface of the arc-shaped depression 26. Vane base material 25 and polyimide resin material layer 27
In order to increase the adhesive strength of the above, the surface of the arc-shaped depression 26 at the tip of the vane base material 25 has a large surface roughness.
【００３２】回転可能な摺動部材２４と接触摺動するベ
ーン基材２５先端部の断面が円弧状である窪み２６の表
面に自己潤滑性のあるポリイミド系樹脂材料層２７を形
成することにより、回転可能な摺動部材の耐アブレッシ
ブ摩耗性がさらに高くなるとともに、摩擦係数が低下し
摺動損失が減少する。By forming a self-lubricating polyimide-based resin material layer 27 on the surface of the recess 26 having a circular arc-shaped cross section at the tip of the vane base material 25 that slides in contact with the rotatable sliding member 24, The abrasion resistance of the rotatable sliding member is further increased, the friction coefficient is reduced, and the sliding loss is reduced.
【００３３】なお、本実施例では、ポリイミド系樹脂材
料を用いたが、他のＰＴＦＥ材、ＰＥＥＫ材、ＰＥＴ
材、ナイロン６６材などのエンジニアリングプラスチッ
ク樹脂材料、あるいは炭素もしくは炭素を主成分とする
保護膜、窒化クロム保護膜などのセラミックス系保護膜
でも同様な効果を得る。In this embodiment, the polyimide resin material is used, but other PTFE materials, PEEK materials, PET materials are used.
Material, engineering plastic resin material such as nylon 66 material, or a ceramic-based protective film such as carbon or a protective film containing carbon as a main component, chromium nitride protective film, and the like, the same effect can be obtained.
【００３４】（実施例４）図４は本発明の他の実施例で
あるロータリー圧縮機のベーンとローラの接触部の要部
断面図である。本実施例が前述の実施例１と異なるの
は、ベーン基材２８の先端に設けた回転摺動部材２９と
その摺動部材２９を収納する断面が円弧状の窪み３０の
間に生じる約２５μｍの隙間に潤滑油を供給する給油孔
３１を、ベーン基材２８中に設けた点である。この給油
孔３１は径がφ１ｍｍで、ベーン下部からベーン先端の
断面が円弧状の窪み３０の表面まで貫通している。(Embodiment 4) FIG. 4 is a cross-sectional view of a main part of a contact portion between a vane and a roller of a rotary compressor according to another embodiment of the present invention. The present embodiment is different from the above-described first embodiment in that the rotary sliding member 29 provided at the tip of the vane base material 28 and the recess 30 having the arcuate cross section for accommodating the sliding member 29 have a diameter of about 25 μm. The point is that an oil supply hole 31 for supplying lubricating oil to the gap is provided in the vane base material 28. The oil supply hole 31 has a diameter of 1 mm and penetrates from the lower part of the vane to the surface of the recess 30 having a circular arc-shaped cross section from the tip of the vane.
【００３５】したがって、ロータリー圧縮機の密閉シェ
ル２内下部に溜った冷凍機油１３は、シリンダ内外の圧
力差のために、給油孔３１を通して、上記回転摺動部材
２９とその摺動部材２９を収納する円弧状の窪み３０の
間に生じる隙間に供給される。Therefore, the refrigerating machine oil 13 accumulated in the lower portion of the closed shell 2 of the rotary compressor passes through the oil supply hole 31 to accommodate the rotary sliding member 29 and its sliding member 29 due to the pressure difference between the inside and the outside of the cylinder. It is supplied to the gap formed between the arc-shaped depressions 30 that form.
【００３６】この結果、回転摺動部材２９とベーン基材
２８の間に油膜が形成され流体潤滑状態となるため、回
転可能な摺動部材２９の回転に伴う機械的損失を低減
し、回転摺動部材２９およびそれと接触するベーン基材
２８の耐摩耗性を高くするのみならず、回転摺動部材２
９に給油された潤滑油が、ローラ外周面とベーン先端の
摺動部にも供給されることになるため、ローラとベーン
の摺動部への冷凍機油供給が確実なものとなる。この結
果、ローラとベーンの摺動も流体潤滑状態になり易く、
両者の摩耗量が減少する。As a result, an oil film is formed between the rotary sliding member 29 and the vane base material 28 to bring about a fluid lubrication state, so that the mechanical loss due to the rotation of the rotatable sliding member 29 is reduced and the rotary sliding member is rotated. Not only is the wear resistance of the moving member 29 and the vane base material 28 in contact therewith increased, but also the rotary sliding member 2
Since the lubricating oil supplied to 9 is also supplied to the sliding portion between the outer peripheral surface of the roller and the tip of the vane, the refrigerating machine oil is reliably supplied to the sliding portion between the roller and the vane. As a result, the sliding of the rollers and vanes is likely to be in a fluid lubrication state,
The amount of wear of both is reduced.
【００３７】以上のことから、ベーンとローラの摺動部
が摩耗することによって、圧縮機の能力が低下するとい
うことは無くなり、耐久性・信頼性の高い圧縮機を実現
する事が可能となる。From the above, it is possible to realize a compressor having high durability and reliability, because the sliding part between the vane and the roller is not worn and the capacity of the compressor is not reduced. .
【００３８】（実施例５）次に、前述の実施例２のベー
ンの製造方法における炭素主成分のＤＬＣ薄膜２２の形
成について説明する。(Embodiment 5) Next, the formation of the DLC thin film 22 containing carbon as a main component in the vane manufacturing method of Embodiment 2 will be described.
【００３９】図５に示すように薄膜形成装置は、原料ガ
スをイオン化するガス導入ポート３２と熱フィラメント
３３を有するイオン銃３４と、駆動装置（図示せず）を
有する試料ホルダー部３５を配設した真空槽３６で構成
されている。試料ホルダー部３５は磁性材料製で、高速
度工具鋼（ＳＫＨ５１材）製のベーン基材２３を、磁力
を利用して保持でき、かつ、駆動装置によって矢印Ａ方
向に駆動可能な構成としている。また、試料ホルダー部
３５の下方には、メッシュ電極３７を配設し、矢印Ａ方
向への試料ホルダー部３５の駆動により、ベーン基材２
３の先端部に形成した回転可能な摺動部材２１がメッシ
ュ電極３７と接触摺動する構成としている。なお、ベー
ン基材２３には、試料ホルダー部３５およびメッシュ電
極３７を介してバイアス電圧が印加できる構成としてい
る。As shown in FIG. 5, the thin film forming apparatus is provided with a gas introduction port 32 for ionizing a source gas, an ion gun 34 having a hot filament 33, and a sample holder portion 35 having a driving device (not shown). It is composed of a vacuum chamber 36. The sample holder portion 35 is made of a magnetic material, and is capable of holding the vane base material 23 made of high-speed tool steel (SKH51 material) using magnetic force, and can be driven in the direction of arrow A by a driving device. Further, a mesh electrode 37 is arranged below the sample holder portion 35, and the vane base material 2 is driven by driving the sample holder portion 35 in the direction of arrow A.
The rotatable sliding member 21 formed at the tip of the No. 3 is in contact with the mesh electrode 37 to slide. A bias voltage can be applied to the vane base material 23 via the sample holder portion 35 and the mesh electrode 37.
【００４０】以上のよう構成されたに薄膜形成装置を用
いたベーンの製造方法について説明する。イオン銃３４
内にガス導入ポート３２から白抜き矢印Ｂで示す方向に
流れる原料ガス（Ｃ6Ｈ6ガス）は熱フィラメント３３か
ら放出される熱電子によってプラズマ化され、プラズマ
中のイオン３８はメッシュ電極３７およびベーン基材２
３に印加されたバイアス電圧により引き出され、エネル
ギーが与えられて、ベーン基材２３の先端部に設けた回
転軸摺動部材２１の表面に衝突して炭素主成分のＤＬＣ
薄膜２２となる。A method for manufacturing a vane using the thin film forming apparatus configured as described above will be described. Ion gun 34
The raw material gas (C 6 H 6 gas) flowing in the direction indicated by the white arrow B from the gas introduction port 32 is turned into plasma by the thermoelectrons emitted from the hot filament 33, and the ions 38 in the plasma become the mesh electrode 37 and Vane base material 2
3 is extracted by the bias voltage applied to 3 and is given energy, and collides with the surface of the rotary shaft sliding member 21 provided at the tip of the vane base material 23 to collide with DLC containing carbon as a main component.
It becomes the thin film 22.
【００４１】このとき、矢印Ａ方向への試料ホルダー部
３５の駆動により、ベーン基材２３の先端部に形成した
回転可能な摺動部材２１はメッシュ電極３７と接触摺動
する構成としているため、上記回転可能な摺動部材２１
はメッシュ電極３７との摩擦力によって自転することに
なる。したがって、回転摺動部材２１の表面上に均一な
ＤＬＣ膜２２が形成されることになる。At this time, by driving the sample holder portion 35 in the direction of arrow A, the rotatable sliding member 21 formed at the tip of the vane base material 23 comes into contact with and slides on the mesh electrode 37. The rotatable sliding member 21
Will rotate by the frictional force with the mesh electrode 37. Therefore, the uniform DLC film 22 is formed on the surface of the rotary sliding member 21.
【００４２】本実施例でＤＬＣ薄膜を成膜したときの主
要な成膜条件を（表１）に示す。The main film forming conditions when forming a DLC thin film in this example are shown in (Table 1).
【００４３】[0043]
【表１】 [Table 1]
【００４４】なお、本実施例では、炭素主成分の薄膜を
成膜するための原料炭化水素ガスとしてＣ6Ｈ6ガスを用
いたが、本発明はこれに限るものでなく炭素元素を含む
いかなるガスであってもかまわない。またＡｒガスやＨ
2ガス等を混入できることはもちろんである。In this embodiment, C 6 H 6 gas was used as a raw material hydrocarbon gas for forming a thin film containing carbon as a main component, but the present invention is not limited to this and any carbon element containing carbon is used. It may be gas. Ar gas and H
Of course, 2 gases can be mixed.
【００４５】次に、回転摺動部材の表面に、窒化クロム
Ｃｒ2Ｎ膜などのセラミックス系保護膜を形成する方法
について説明する。前述の実施例５の試料ホルダー部３
５およびメッシュ電極３７と同様な構成の磁性材料製の
ホルダーを用いて、先端部に回転摺動部材を内含した鉄
系金属製のベーン基材を保持し、通常のリアクティブス
パッタ法を用いて、摺動部材を回転させながらその摺動
部材の表面に約１μｍの窒化クロムＣｒ2Ｎ膜を形成す
る。Next, a method for forming a ceramic-based protective film such as a chromium nitride Cr 2 N film on the surface of the rotary sliding member will be described. Sample holder part 3 of the above-mentioned Example 5
5 and a holder made of a magnetic material having the same configuration as the mesh electrode 37 are used to hold a vane base material made of an iron-based metal including a rotary sliding member at its tip, and a normal reactive sputtering method is used. Then, while rotating the sliding member, a chromium nitride Cr 2 N film of about 1 μm is formed on the surface of the sliding member.
【００４６】以上のように、ベーン先端部に回転可能な
摺動部材を形成した後に、摺動部材を回転させながらそ
の摺動部材の表面にセラミックス系保護膜を製膜するた
め、小さなベーン材を容易にしかも大量に製膜ホルダー
上に保持し、一挙に製膜可能となり、品質が安定し量産
性に優れる。また、セラミックス系保護膜の切削等の後
加工がないため、加工欠陥の無い高品質の耐摩耗性の良
好な保護膜を有するベーンを製造することができる。As described above, after the rotatable sliding member is formed at the tip of the vane, the ceramic-based protective film is formed on the surface of the sliding member while rotating the sliding member. The film can be easily and in large quantities held on the film-forming holder, and the film can be formed all at once, resulting in stable quality and excellent mass productivity. Further, since there is no post-processing such as cutting of the ceramic-based protective film, it is possible to manufacture a vane having a high-quality protective film with good abrasion resistance without processing defects.
【００４７】[0047]
【発明の効果】以上述べたところから明らかなように、
本発明は、ローラの外周と接触摺動する先端部に回転摺
動部材を設けた構成、あるいは、回転摺動部材の表面に
セラミックス系保護膜を形成した構成、あるいは、回転
摺動部材を収納したベーン基材の、回転摺動部材と接触
摺動する部分に樹脂系の摺動材料もしくはセラミックス
系保護膜を設けた構成、あるいは、回転可能な摺動部材
とその摺動部材を収納するベーン基材の隙間に潤滑油を
供給する給油孔をベーン基材中に設けた構成により、ベ
ーンおよびローラの耐摩耗性が向上し、信頼性が高く、
長寿命化した優れたロータリー圧縮機のベーンを実現で
きるものである。As is apparent from the above description,
The present invention has a structure in which a rotary sliding member is provided at the tip end portion that is in sliding contact with the outer circumference of a roller, a structure in which a ceramic-based protective film is formed on the surface of the rotary sliding member, or a rotary sliding member is stored. Of the vane base material provided with a resin-based sliding material or a ceramic-based protective film on the portion that comes into contact with and slides on the rotary sliding member, or a rotatable sliding member and a vane accommodating the sliding member. With the structure that the oil supply hole for supplying lubricating oil to the gap of the base material is provided in the vane base material, the wear resistance of the vane and the roller is improved, and the reliability is high.
An excellent rotary compressor vane with a long life can be realized.
【００４８】また、ベーン先端部に回転可能な摺動部材
を形成した後に、摺動部材を回転させながらその摺動部
材の表面にセラミックス系保護膜を製膜する方法によ
り、耐摩耗性が良くて信頼性が高く長寿命化したベーン
を安定した品質と低コストで量産できる優れたベーンの
製造方法を実現できるものである。Further, by forming a rotatable sliding member at the tip of the vane and then forming a ceramic protective film on the surface of the sliding member while rotating the sliding member, wear resistance is improved. Therefore, it is possible to realize an excellent vane manufacturing method capable of mass-producing highly reliable and long-life vanes with stable quality and at low cost.
【図１】（ａ）は本発明の第１の実施例のロータリー圧
縮機のベーンとローラの接触状態を示す断面図である。
（ｂ）は（ａ）に示すベーンの斜視図である。FIG. 1A is a sectional view showing a contact state between a vane and a roller of a rotary compressor according to a first embodiment of the present invention.
(B) is a perspective view of the vane shown in (a).
【図２】本発明の第２の実施例のロータリー圧縮機のベ
ーンを示す断面図である。FIG. 2 is a sectional view showing a vane of a rotary compressor according to a second embodiment of the present invention.
【図３】本発明の第３の実施例のロータリー圧縮機のベ
ーンを示す断面図である。FIG. 3 is a sectional view showing a vane of a rotary compressor according to a third embodiment of the present invention.
【図４】（ａ）は本発明の第４の実施例のロータリー圧
縮機のベーンを示す断面図である。（ｂ）は（ａ）に示
すベーンの斜視図である。FIG. 4A is a sectional view showing a vane of a rotary compressor according to a fourth embodiment of the present invention. (B) is a perspective view of the vane shown in (a).
【図５】本発明の実施例２のロータリー圧縮機のベーン
の製造方法に用いる薄膜形成装置の構成図である。FIG. 5 is a configuration diagram of a thin film forming apparatus used in a method for manufacturing a vane of a rotary compressor according to a second embodiment of the present invention.
【図６】従来のロータリー圧縮機の断面略図である。FIG. 6 is a schematic sectional view of a conventional rotary compressor.
【図７】同ロータリー圧縮機のＢ−Ｂ’断面図である。FIG. 7 is a sectional view taken along the line B-B ′ of the rotary compressor.
【図８】同ロータリー圧縮機のベーンとローラの接触状
態を示す要部断面図である。FIG. 8 is a cross-sectional view of essential parts showing a contact state between a vane and a roller of the rotary compressor.
６ ローラ １７ ベーン １８ ベーン基材 １９ 回転摺動部材 ２０ 窪み ２１ ＤＬＣ薄膜 ２７ ポリイミド系樹脂層 ３１ 給油孔 ３５ 試料ホルダー部 ３７ メッシュ電極 6 roller 17 vane 18 vane base material 19 rotary sliding member 20 dent 21 DLC thin film 27 polyimide resin layer 31 oiling hole 35 sample holder part 37 mesh electrode
───────────────────────────────────────────────────── フロントページの続き (72)発明者 新宅 秀信 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidenobu Shintaku 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (8)
転するローラの外周と接触摺動する、先端部に回転可能
な摺動部材を設けたことを特徴とするロータリー圧縮機
のベーン。1. A vane for a rotary compressor, wherein a rotatable sliding member is provided at a tip end portion of the vane, which comes into contact with and slides on an outer periphery of a roller that eccentrically rotates in a cylinder of the rotary compressor.
プラスチックなどの樹脂系の摺動材料である請求項１記
載のロータリー圧縮機のベーン。2. The vane for a rotary compressor according to claim 1, wherein the rotatable sliding member is a resin-based sliding material such as engineering plastic.
珪素、炭化珪素などのセラミックス材料である請求項１
記載のロータリー圧縮機のベーン。3. The rotatable sliding member is made of a ceramic material such as chromium nitride, silicon nitride or silicon carbide.
The rotary compressor vanes listed.
くは炭素を主成分とする保護膜あるいは窒化クロム保護
膜などのセラミックス系保護膜を備えたことを特徴とす
る請求項１記載のロータリー圧縮機のベーン。4. The rotary according to claim 1, wherein a surface of the rotatable sliding member is provided with a ceramic-based protective film such as carbon, a carbon-based protective film, or a chromium nitride protective film. Compressor vane.
材の、回転可能な摺動部材と接触摺動する部分にエンジ
ニアリングプラスチックなどの樹脂系の摺動材料を設け
たことを特徴とする請求項１記載のロータリー圧縮機の
ベーン。5. A resin-based sliding material such as engineering plastic is provided in a portion of a vane base material that houses a rotatable sliding member in contact with the rotatable sliding member. The vane of the rotary compressor according to claim 1.
する保護膜、あるいは窒化クロム保護膜などのセラミッ
クス系保護膜である請求項５記載のロータリー圧縮機の
ベーン。6. The vane for a rotary compressor according to claim 5, wherein the sliding material is carbon or a protective film containing carbon as a main component, or a ceramic-based protective film such as a chromium nitride protective film.
納するベーン基材の隙間に潤滑油を供給する給油孔を、
ベーン基材中に設けたことを特徴とする請求項１記載の
ロータリー圧縮機のベーン。7. An oil supply hole for supplying lubricating oil to a gap between a rotatable sliding member and a vane base material housing the sliding member,
The vane for a rotary compressor according to claim 1, wherein the vane is provided in a vane base material.
成した後、前記摺動部材を回転させながらその表面に、
炭素もしくは炭素を主成分とする保護膜あるいは窒化ク
ロム保護膜などのセラミックス系保護膜を製膜すること
を特徴とするロータリー圧縮機ベーンの製造方法。8. A rotatable sliding member is formed on the tip of the vane, and the surface of the sliding member is rotated while the sliding member is rotated.
A method for manufacturing a rotary compressor vane, which comprises forming a protective film mainly made of carbon or a ceramic-based protective film such as a chromium nitride protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28513994A JPH08144975A (en) | 1994-11-18 | 1994-11-18 | Rotary compressor vane and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28513994A JPH08144975A (en) | 1994-11-18 | 1994-11-18 | Rotary compressor vane and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08144975A true JPH08144975A (en) | 1996-06-04 |
Family
ID=17687611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28513994A Pending JPH08144975A (en) | 1994-11-18 | 1994-11-18 | Rotary compressor vane and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08144975A (en) |
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|---|---|---|---|---|
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| KR100720543B1 (en) * | 2000-12-29 | 2007-05-22 | 엘지전자 주식회사 | device for decreasing friction resistance in rotary compressor |
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| WO2007058072A1 (en) * | 2005-11-15 | 2007-05-24 | Idemitsu Kosan Co., Ltd. | Refrigerator oil |
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-
1994
- 1994-11-18 JP JP28513994A patent/JPH08144975A/en active Pending
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|---|---|---|---|---|
| KR20000044721A (en) * | 1998-12-30 | 2000-07-15 | 전주범 | Rotary compressor for air conditioner |
| KR100720543B1 (en) * | 2000-12-29 | 2007-05-22 | 엘지전자 주식회사 | device for decreasing friction resistance in rotary compressor |
| WO2007058082A1 (en) * | 2005-11-15 | 2007-05-24 | Idemitsu Kosan Co., Ltd. | Refrigerator oil composition |
| WO2007058072A1 (en) * | 2005-11-15 | 2007-05-24 | Idemitsu Kosan Co., Ltd. | Refrigerator oil |
| CN101305084A (en) * | 2005-11-15 | 2008-11-12 | 出光兴产株式会社 | Refrigerating machine oil composition |
| US8062543B2 (en) | 2005-11-15 | 2011-11-22 | Idemitsu Kosan Co., Ltd. | Refrigerator oil |
| JP5179192B2 (en) * | 2005-11-15 | 2013-04-10 | 出光興産株式会社 | Refrigeration oil |
| US8425796B2 (en) | 2005-11-15 | 2013-04-23 | Idemitsu Kosan Co., Ltd. | Refrigerator oil |
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| CN103206379A (en) * | 2012-01-16 | 2013-07-17 | 广东美芝制冷设备有限公司 | Sliding vane used in rotary compressor, and manufacturing method thereof |
| CN102797677A (en) * | 2012-04-18 | 2012-11-28 | 宁波甬微集团有限公司 | Slide vane compressor |
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| CN108757459A (en) * | 2018-06-01 | 2018-11-06 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
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| CN110792599A (en) * | 2018-08-03 | 2020-02-14 | 广东美芝制冷设备有限公司 | Slide assembly, compressor and refrigeration equipment |
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| CN111287964B (en) * | 2018-12-06 | 2022-07-12 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
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