JPH10246192A - Plural layer dry lubricating film for sliding member in compressor and device using thereof - Google Patents
Plural layer dry lubricating film for sliding member in compressor and device using thereofInfo
- Publication number
- JPH10246192A JPH10246192A JP6530697A JP6530697A JPH10246192A JP H10246192 A JPH10246192 A JP H10246192A JP 6530697 A JP6530697 A JP 6530697A JP 6530697 A JP6530697 A JP 6530697A JP H10246192 A JPH10246192 A JP H10246192A
- Authority
- JP
- Japan
- Prior art keywords
- solid lubricant
- compressor
- dry lubricating
- film
- sliding member
- 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)
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、圧縮機内摺動部材
用複層乾性潤滑被膜およびその被膜を用いた装置に関
し、特に、圧縮機内の摺動部の摩擦係数を低減させ、耐
焼付き性を向上させる摺動部材用複層乾性潤滑被膜およ
びその被膜を用いた空調装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer dry lubricating film for a sliding member in a compressor and an apparatus using the film, and more particularly to a device for reducing the coefficient of friction of a sliding portion in a compressor and improving seizure resistance. The present invention relates to a multi-layer dry lubricating coating for a sliding member to be improved and an air conditioner using the coating.
【０００２】[0002]
【従来の技術】圧縮機内の摺動部に対して、冷媒である
フロンガスに潤滑油を添加して潤滑を行ってきた。近年
のフロン代替に伴い、代替フロンガスの潤滑性不足が摺
動面間の焼付けを増加させ、圧縮機の製品寿命が従来よ
り著しく短くなるという重大な問題が生じた。そのた
め、冷媒中に添加する潤滑油を代替する方法、摺動部材
を単層の乾性潤滑被膜で被覆する方法などで焼付けを防
止し、製品寿命を向上させる試みがなされている。2. Description of the Related Art Lubricating oil has been added to sliding parts in a compressor by adding lubricating oil to Freon gas as a refrigerant. With the recent substitution of CFCs, the lack of lubricity of CFC substitutes has increased seizure between the sliding surfaces, causing a serious problem that the product life of the compressor is significantly shorter than before. For this reason, attempts have been made to prevent seizure by using a method of substituting a lubricating oil to be added to a refrigerant or a method of coating a sliding member with a single-layered dry lubricating film to improve the product life.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記いずれの
方法によっても圧縮機の十分な製品寿命は得られなかっ
た。However, no sufficient product life of the compressor has been obtained by any of the above methods.
【０００４】したがって、本発明の目的は、圧縮機内の
摺動部材の摩擦係数を低減させ、耐焼付け性を向上させ
て製品寿命を延長させることができる圧縮機内摺動部材
用複層乾性潤滑被膜を提供することにある。Accordingly, an object of the present invention is to provide a multi-layer dry lubricating coating for a sliding member in a compressor which can reduce the coefficient of friction of the sliding member in the compressor, improve the seizure resistance and extend the product life. Is to provide.
【０００５】本発明は、さらに、前述のように構成され
た複層乾性潤滑被膜を施した摺動部材および該摺動部材
を用いた空調装置を提供することにある。Another object of the present invention is to provide a sliding member provided with the multilayer dry lubricating film constituted as described above, and an air conditioner using the sliding member.
【０００６】[0006]
【課題を解決するための手段】前述の目的を達成するた
めに、本発明は、圧縮機内摺動部材の摺動面に対して成
膜された固体潤滑剤と結合剤とからなる乾性潤滑被膜
と、該乾性潤滑被膜上に、固体潤滑剤微粉末と合成樹脂
粉末とを高圧ガス体の流れに載せ、固体潤滑剤微粉末と
合成樹脂粉末とを含む高圧ガス体をノズルから部材の摺
動面に噴射するブラストコーティング法によって成膜さ
れた固体潤滑剤被膜とからなることを特徴とする圧縮機
内摺動部材用複層乾性潤滑被膜を採用するものである。In order to achieve the above-mentioned object, the present invention provides a dry lubricating coating comprising a solid lubricant and a binder formed on a sliding surface of a sliding member in a compressor. And placing the solid lubricant fine powder and the synthetic resin powder on the flow of the high-pressure gas on the dry lubricating film, and sliding the high-pressure gas containing the solid lubricant fine powder and the synthetic resin powder from the nozzle through the nozzle. A multi-layer dry lubricating film for a sliding member in a compressor, comprising a solid lubricant film formed by a blast coating method sprayed on a surface.
【０００７】本発明は、さらに、前述のように構成され
た複層乾性潤滑被膜を施した摺動部材および該摺動部材
を用いる空調装置を採用するものである。The present invention further employs a sliding member provided with the multilayer dry lubricating film constructed as described above, and an air conditioner using the sliding member.
【０００８】[0008]
【発明の実施の形態】本発明は、圧縮機内摺動部材の摺
動面に対して固体潤滑剤と結合剤とからなる乾性潤滑被
膜を成膜し、その成膜した乾性潤滑被膜上に特定のブラ
ストコーティング法により固体潤滑剤被膜を成膜させる
ことにより、摺動部材の摩擦係数を著しく低減し、耐焼
付け性を向上させ、その結果圧縮機の製品寿命を延長さ
せるものである。BEST MODE FOR CARRYING OUT THE INVENTION The present invention forms a dry lubricating film composed of a solid lubricant and a binder on a sliding surface of a sliding member in a compressor, and specifies the dry lubricating film on the formed dry lubricating film. By forming a solid lubricant film by the blast coating method described above, the friction coefficient of the sliding member is significantly reduced, the seizure resistance is improved, and as a result, the product life of the compressor is extended.
【０００９】本発明の摺動部材の表面上に成膜される乾
性潤滑被膜の固体潤滑剤は特に限定されないが、グラフ
ァイト及びＰＴＦＥなどが適当である。また、結合剤と
して使用される樹脂も特に限定されないが、熱硬化型の
樹脂が好ましく、ポリアミドイミドが特に好ましい。さ
らに、塗膜の機械的強度を上げ、耐摩耗性を向上させる
ために任意に配合されるフィラーの種類も特に限定され
ないが、グラファイト・ＳｉＣ等のウィスカーが好まし
い。The solid lubricant for the dry lubricating film formed on the surface of the sliding member of the present invention is not particularly limited, but graphite and PTFE are suitable. The resin used as the binder is not particularly limited, but a thermosetting resin is preferable, and polyamideimide is particularly preferable. Furthermore, the type of filler arbitrarily added to increase the mechanical strength of the coating film and improve the wear resistance is not particularly limited, but whiskers such as graphite and SiC are preferable.
【００１０】この乾性潤滑被膜の塗布方法は、ディッピ
ング、スプレー、電着など多くの方法があるが可能であ
るが、スプレーが最も簡便である。また、結合剤に熱硬
化型のポリアミドイミド樹脂を用いた場合には、２００
°Ｃ〜２５０°Ｃの温度範囲で焼成し成膜する。As a method for applying the dry lubricating film, there are many methods such as dipping, spraying and electrodeposition, but spraying is the simplest. When a thermosetting polyamide-imide resin is used as the binder, 200
It is baked in a temperature range of ° C to 250 ° C to form a film.
【００１１】上記方法により成膜した乾性潤滑被膜の表
面にブラストコーティング法により、さらに固体潤滑剤
被膜を形成させて複層乾性潤滑被膜とする。本発明で用
いられるブラストコーティング法としては、特開平８−
１９６９５１号公報に記載のブラストコーティング法
（固体潤滑剤被膜形成方法）が特に好ましく、また、固
体潤滑被膜を形成する原料となる固体潤滑剤組成物とし
ては、上記特開平８−１９６９５１号公報に記載の固体
潤滑剤組成物が特に好ましいので、後述するが、詳細に
は、上記特開平８−１９６９５１号公報を参照された
い。[0011] A solid lubricant film is further formed on the surface of the dry lubricating film formed by the above method by a blast coating method to form a multilayer dry lubricating film. The blast coating method used in the present invention is disclosed in
A blast coating method (a method for forming a solid lubricant film) described in 196951 is particularly preferred. A solid lubricant composition which is a raw material for forming a solid lubricant film is described in JP-A-8-196951. The solid lubricant composition is particularly preferable, and will be described later. For details, refer to JP-A-8-196951.
【００１２】特開平８−１９６９５１号公報に記載のブ
ラストコーティング法は、固体潤滑剤微粉末と合成樹脂
粉末とを高圧ガス体の流れに載せ、固体潤滑剤微粉末と
合成樹脂粉末とを含む高圧ガス体をノズルから加工物
（部材）の表面に噴射し、部材の表面に固体潤滑剤被膜
を成膜するものである。In the blast coating method described in Japanese Patent Application Laid-Open No. 8-196951, a solid lubricant fine powder and a synthetic resin powder are placed in a flow of a high-pressure gas body, and a high-pressure liquid containing the solid lubricant fine powder and the synthetic resin powder. A gas body is sprayed from a nozzle onto the surface of a workpiece (member) to form a solid lubricant film on the surface of the member.
【００１３】成膜する固体潤滑剤は二硫化モリブデン、
グラファイト、ＰＴＦＥなどいずれでも良いが、方法及
び性能上二硫化モリブデンが好ましい。二硫化モリブデ
ンを使用する場合、平均粒径は１０μｍ以上が好まし
く、２０μｍ以上が適当である。ブラストコーティング
法の成膜条件は部材の形状と下地乾性潤滑被膜の材質に
より若干変動するが、噴射圧力０．２ＭＰａ〜０．５Ｍ
Ｐａ、固体潤滑粉末とブラスト用ビーズの容量比１：２
〜２：１の範囲内が好ましい。噴射時間も部材形状によ
り、変動するが、およそ１０秒間〜３０秒間である。The film-forming solid lubricant is molybdenum disulfide,
Any of graphite, PTFE and the like may be used, but molybdenum disulfide is preferred in terms of method and performance. When molybdenum disulfide is used, the average particle size is preferably at least 10 μm, and more preferably at least 20 μm. The film forming conditions of the blast coating method slightly vary depending on the shape of the member and the material of the underlying dry lubricating film, but the injection pressure is 0.2 MPa to 0.5 M.
Pa, volume ratio of solid lubricating powder to blast beads 1: 2
It is preferably in the range of ２2: 1. The injection time also varies depending on the shape of the member, but is about 10 seconds to 30 seconds.
【００１４】（作用）以下に説明するように、本発明で
用いる複層乾性潤滑被膜はそれぞれの単層の潤滑被膜の
欠点を補い、かつ相乗効果を発現するものである。(Function) As described below, the multi-layer dry lubricating coating used in the present invention compensates for the disadvantages of each single-layer lubricating coating and exhibits a synergistic effect.
【００１５】結合樹脂を含む下地の乾性潤滑被膜は比較
的硬度が高く、固体潤滑剤を長期に摺動面に保持するた
め耐久性に優れている。ただし、これらの性能を発現す
るには相手摺動面に固体潤滑剤微粒子を移着させ、結合
樹脂と相手金属面の凝着を防止する、いわゆる初期なじ
みが必要である。この初期なじみに成功しない場合、樹
脂と相手金属面間の凝着を生じ、被膜層剥離の発生、大
型摩耗粉の発生および摩耗粉の研磨による被膜摩耗の急
増、さらには焼付けの発生へと至る。The underlying dry lubricating film containing the binder resin has a relatively high hardness, and has excellent durability because the solid lubricant is held on the sliding surface for a long period of time. However, in order to exhibit these performances, it is necessary to transfer solid lubricant fine particles to the sliding surface of the mating member and to prevent adhesion between the binder resin and the mating metal surface, so-called initial adaptation. If this initial break-in is not successful, adhesion between the resin and the mating metal surface occurs, leading to peeling of the coating layer, generation of large wear powder, rapid increase in film wear due to polishing of the wear powder, and furthermore, the occurrence of seizure. .
【００１６】この初期なじみは相手材に被膜中の固体潤
滑剤を移着させ、その移着部分と結合樹脂が滑るのを持
つという極めて確率的な現象である。樹脂に対する固体
潤滑剤の比率を増加させれば移着する確率は増加するた
め初期なじみは良好になる。しかし、樹脂比率が減少す
るため摺動面での固体潤滑剤の保持力が低下し、耐久性
は低下する。逆に、ある一定の樹脂比率以上とすれば、
樹脂間の凝着が増加するため異常摩耗を起こし易くなり
寿命は極端に短くなる。これらの問題から、乾性潤滑被
膜の耐久性と摩擦係数にはある程度の限界がある。This initial break-in is a very stochastic phenomenon in which the solid lubricant in the coating is transferred to the mating material, and the transferred portion and the binder resin have slippage. If the ratio of the solid lubricant to the resin is increased, the probability of transfer increases, so that the initial adaptation becomes better. However, since the resin ratio decreases, the holding force of the solid lubricant on the sliding surface decreases, and the durability decreases. Conversely, if the resin ratio is more than a certain
Since the adhesion between the resins increases, abnormal wear is apt to occur, and the life is extremely shortened. Due to these problems, the durability and coefficient of friction of the dry lubricating coating have some limits.
【００１７】一方、ブラストコーティング法によって得
られた潤滑被膜は二硫化モリブデンの摺動面に対する結
晶配向が被膜形成時に終了しているため、摺動の初期か
ら極めて低い摩擦係数を示すが、被膜厚は１μｍ前後が
限界であり、持続性に劣る。また、結合剤を含まないた
め、下地との密着性に劣り、被加工材が硬い場合で、鏡
面加工など高精度仕上げなどに対しては、十分な密着性
が得られないため耐久性が劣る欠点を有する。On the other hand, the lubricating film obtained by the blast coating method shows a very low coefficient of friction from the beginning of sliding because the crystal orientation of the molybdenum disulfide on the sliding surface is completed at the time of film formation. Has a limit of about 1 μm, and is inferior in persistence. In addition, since it does not contain a binder, it has poor adhesion to the base, and when the work material is hard, it does not have sufficient adhesion for high-precision finishing such as mirror finishing, so that durability is poor. Has disadvantages.
【００１８】本発明の複層乾性潤滑被膜は、下地の結合
剤を含む乾性潤滑被膜上に結晶配向を終了させた１μｍ
程度の膜厚の二硫化モリブデンのような固体潤滑剤被膜
を成膜することによって、摩擦の初期での樹脂と相手部
材との凝着を防止する。通常の初期なじみでは結合剤の
若干の凝着は防止できないため、ある一定以上の比摩耗
率を示すが、本発明の複層潤滑被膜の場合は、樹脂の相
手部材への凝着を完全に防止するため比摩耗率が低減す
る。そのため、乾性潤滑被膜が完全に摩耗するまでの時
間が大幅に増加し、潤滑寿命が極端に長くなる。The multi-layer dry lubricating film of the present invention has a crystal orientation of 1 μm on a dry lubricating film containing an underlying binder.
By forming a solid lubricant film such as molybdenum disulfide with a film thickness of about a degree, adhesion between the resin and the mating member in the initial stage of friction is prevented. Although some adhesion of the binder cannot be prevented by ordinary initial running-in, a specific wear rate exceeding a certain level is exhibited.However, in the case of the multilayer lubricating coating of the present invention, adhesion of the resin to the mating member is completely prevented. To prevent this, the specific wear rate is reduced. Therefore, the time until the dry lubricating coating is completely worn is greatly increased, and the lubrication life is extremely prolonged.
【００１９】一方、ブラストコーティング法によって成
膜された被膜に関しても、被加工材の表面が下地金属よ
り軟らかい乾性潤滑被膜であり、十分な潤滑被膜の形成
が可能となり、単独の潤滑被膜より耐久性が向上する。
以上の相乗効果により単独の乾性潤滑被膜より潤滑寿命
は大幅に長くなる。On the other hand, with respect to the film formed by the blast coating method, the surface of the workpiece is a dry lubricating film that is softer than the underlying metal, and a sufficient lubricating film can be formed. Is improved.
Due to the above synergistic effect, the lubrication life is significantly longer than that of a single dry lubricating coating.
【００２０】[0020]
（実施例１）以下に、台上試験機による評価を行った本
発明の実施例を詳細に説明する。台上試験機として、東
京試験機製のリングオンディスク型摩擦摩耗試験機を用
いた。この試験機は下側円盤状試験片（ディスク）を回
転させ、上部円筒状試験片（リング：外径２６ｍｍ、内
径：２３ｍｍ）を空気圧により負荷した場合に発生する
摺動面間の摩擦力を、上部円筒状試験片固定軸のねじり
力をして検出する。(Embodiment 1) Hereinafter, an embodiment of the present invention evaluated by a bench tester will be described in detail. As a bench tester, a ring-on-disk friction and wear tester manufactured by Tokyo Testing Machine was used. This tester rotates a lower disc-shaped test piece (disk) and applies a friction force between sliding surfaces generated when an upper cylindrical test piece (ring: outer diameter 26 mm, inner diameter: 23 mm) is loaded by air pressure. The torsion force of the fixed shaft of the upper cylindrical test piece is detected.
【００２１】リングにはＳ４５Ｃを用い、表面粗さＲ
ｙ：０．３μｍ程度に研磨装置で研磨した。ディスクは
ＳＵＳ３０４を用い、表面粗さＲｙ：１μｍ程度に同一
の研磨装置で研磨した。このディスク上に、別紙の表１
の比較例１〜４に示す乾性潤滑被膜及びブラストコーテ
ィング法で成膜した二硫化モリブデン被膜単独（膜厚約
１μｍ）と、実施例１〜３に示す複層乾性潤滑被膜をそ
れぞれ処理し試験を行った。処理膜厚はそれぞれ１５±
３μｍとして。The ring is made of S45C and has a surface roughness R
y: Polished to about 0.3 μm with a polishing apparatus. The disk was polished using SUS304 to have a surface roughness Ry of about 1 μm using the same polishing apparatus. On this disc, the attached table 1
The dry lubricating film shown in Comparative Examples 1 to 4 and the molybdenum disulfide film alone (thickness: about 1 μm) formed by the blast coating method and the multilayer dry lubricating film shown in Examples 1 to 3 were treated and tested. went. Processing film thickness is 15 ±
As 3 μm.
【００２２】主な試験条件は、下側回転数６３０ｒｐ
ｍ、平均滑り速度７５ｃｍ／ｓ、垂直荷重２９４Ｎ〜６
８６Ｎ、接触面圧１．４７ＭＰａ〜３．４３ＭＰａ、各
荷重での試験時間１６００ｓｅｃである。試験は複数回
行い、それぞれの摩擦係数の平均を別紙の表２に記す。The main test conditions were that the lower rotational speed was 630 rpm.
m, average sliding speed 75 cm / s, vertical load 294N-6
86N, a contact surface pressure of 1.47 MPa to 3.43 MPa, and a test time of 1600 sec under each load. The test was performed a plurality of times, and the average of the respective friction coefficients is shown in Table 2 of the attached sheet.
【００２３】さらに、同一の実施例と比較例を、下側回
転数６３０ｒｐｍ、平均滑り速度７５ｃｍ／ｓ、垂直荷
重５８８Ｎ、接触面圧２．９４ＭＰａの試験条件の下で
持続試験を行い、焼付けに至るまでの時間を測定した。
これらの結果を別紙の表３に示す。Further, the same example and comparative example were subjected to a continuous test under the test conditions of a lower rotational speed of 630 rpm, an average sliding speed of 75 cm / s, a vertical load of 588 N, and a contact surface pressure of 2.94 MPa, and were baked. The time to reach was measured.
The results are shown in Table 3 of the attached document.
【００２４】表３から明らかなように、本発明の複層乾
性潤滑被膜は、台上試験機において、極めて低い摩擦係
数と非常に長い耐久寿命を示す。As is clear from Table 3, the multilayer dry lubricating coating of the present invention shows a very low coefficient of friction and a very long durability life on a bench tester.
【００２５】（実施例２）次に、実機試験による評価を
行った本発明の実施例を図面を参照しながら詳細に説明
する。図１は本発明の一実施例として車両空調装置のロ
ータリーベーンタイプ圧縮機の構成を示す断面図であ
り、そのうち、図１ａは軸線方向断面図であり、図１ｂ
は半径方向断面図である。(Embodiment 2) Next, an embodiment of the present invention evaluated by an actual machine test will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing a configuration of a rotary vane type compressor of a vehicle air conditioner as one embodiment of the present invention, in which FIG. 1a is an axial sectional view and FIG.
Is a sectional view in the radial direction.
【００２６】図１において、シリンダー１には、吸入孔
１２、吐出孔９が配設されている。ロータ４はシリンダ
ー１とトップ隙間を介して配設され、ロータ４のベーン
スロット７内には出没自在のベーン８が挿入されてい
る。ベーン８は、シリンダー１の内壁と、前部側板２
と、後部側板３に対して摺動する。本発明の実施例で
は、ベーン８の側板２（または３）に対して摺動する面
に、前述の固体潤滑剤と結合剤からなる乾性被膜潤滑剤
（乾性潤滑被膜）２２−１を成膜し、成膜した処理表面
に前述のブラストコーティング法によって固体潤滑剤被
膜２２−２を成膜させて複層乾性潤滑被膜２２を成膜す
るIn FIG. 1, the cylinder 1 is provided with a suction hole 12 and a discharge hole 9. The rotor 4 is arranged with a top clearance from the cylinder 1, and a vane 8 that can freely move in and out is inserted into a vane slot 7 of the rotor 4. The vane 8 includes the inner wall of the cylinder 1 and the front side plate 2.
Slides on the rear side plate 3. In the embodiment of the present invention, a dry film lubricant (dry lubricating film) 22-1 composed of the above-described solid lubricant and a binder is formed on the surface of the vane 8 sliding on the side plate 2 (or 3). Then, the solid lubricant film 22-2 is formed on the processed surface by the blast coating method to form the multilayer dry lubricating film 22.
【００２７】圧縮室１９は、シリンダー６と、ロータ４
と、ベーン８と、前部側板２と、後部側板３によって形
成されている。エンジンとベルト（共に図示せず）を介
して圧縮機に動力が伝達され、ロータ４が回転すること
により吸入孔１２より圧縮室１９中に冷媒を吸入し、冷
媒は圧縮室１９によって圧縮され吐出孔９より吐出され
る。なお、図１中、符号５は駆動軸を示し、６は軸受を
示し、１０は高圧ガス室を示し、１１は吐出弁を示し、
１３は給油室を示し、１４は通路を示し、１５は油溜り
部を示し、１６は給油通路を示し、１７は円周溝を示
し、１８はシール用部材を示し、２０は油溝を示し、２
１はベーン背部空間を示す。The compression chamber 19 includes the cylinder 6 and the rotor 4
, The vane 8, the front side plate 2, and the rear side plate 3. Power is transmitted to the compressor via an engine and a belt (both not shown), and the rotation of the rotor 4 draws refrigerant into the compression chamber 19 from the suction hole 12, and the refrigerant is compressed by the compression chamber 19 and discharged. It is discharged from the hole 9. 1, reference numeral 5 denotes a drive shaft, 6 denotes a bearing, 10 denotes a high-pressure gas chamber, 11 denotes a discharge valve,
Reference numeral 13 denotes an oil supply chamber, 14 denotes a passage, 15 denotes an oil reservoir, 16 denotes an oil supply passage, 17 denotes a circumferential groove, 18 denotes a sealing member, and 20 denotes an oil groove. , 2
1 shows the space behind the vane.
【００２８】図２は、ベーンの断面図と、ベーンの一部
を拡大して示す部分拡大断面図である。ベーン８の前後
の表面、即ち、前部側板２（図１参照）と後部側板３
（図１参照）と摺動する面に固体潤滑剤と結合剤からな
る乾性被膜潤滑剤２２−１が成膜され、その成膜された
処理表面にブラストコーティング法により固体潤滑剤被
膜２２−２が成膜されて複層乾性潤滑被膜２２が形成さ
れている。FIG. 2 is a sectional view of the vane and a partially enlarged sectional view showing a part of the vane in an enlarged manner. The front and rear surfaces of the vane 8, namely, the front side plate 2 (see FIG. 1) and the rear side plate 3
(See FIG. 1) A dry film lubricant 22-1 composed of a solid lubricant and a binder is formed on the surface that slides, and the solid lubricant film 22-2 is formed on the processed surface by blast coating. Is formed to form a multi-layer dry lubricating film 22.
【００２９】本実施例と比較例を無潤滑条件での圧縮機
運転において比較実験を行った。主な評価条件として
は、回転数：３０００ｒ／ｍｉｎ、冷媒：ＨＦＣ１３４
ａ、潤滑油なし、液冷媒で吸入する膨張弁全開とし、こ
れらの条件の下で、１．５時間運転し、焼付けに至るま
での時間を測定した。これらの結果を別紙の表４に示
す。A comparative experiment was conducted between this embodiment and a comparative example in compressor operation under non-lubricated conditions. The main evaluation conditions were: rotation speed: 3000 r / min, refrigerant: HFC134
a, no lubricating oil, the expansion valve sucked by the liquid refrigerant was fully opened, operated under these conditions for 1.5 hours, and the time until burning was measured. The results are shown in Table 4 of the attached document.
【００３０】表４から明らかなように、本発明の複層乾
性潤滑被膜は、台上試験機と同様に、実機の無潤滑運転
においても長い寿命を得ることができる。As is clear from Table 4, the multi-layer dry lubricating film of the present invention can provide a long life even in the non-lubricating operation of the actual machine, similarly to the bench test machine.
【００３１】本実施例では、ロータリーベーンタイプ圧
縮機において、ベーン側に複層乾性潤滑被膜を施したも
のについて説明したが、ロータの側面または側板の表面
に本発明の複層乾性潤滑被膜を施しても同様の効果が得
ることができる。また、斜板式の往復ピストンタイプ圧
縮機、スクロールタイプ圧縮機等の空調装置の圧縮機内
の摺動面を持つ部材に被膜を施しても同様の効果が得ら
れることは明確である。In this embodiment, a rotary vane type compressor having a multi-layer dry lubricating film on the vane side is described. However, the multi-layer dry lubricating film of the present invention is formed on the side surface of the rotor or the surface of the side plate. The same effect can be obtained. Also, it is clear that the same effect can be obtained by applying a coating to a member having a sliding surface in a compressor of an air conditioner such as a swash plate type reciprocating piston type compressor or a scroll type compressor.
【００３２】[0032]
【発明の効果】以上説明したように、本発明によれば、
低摩擦係数と耐焼付け性を向上した圧縮機が得られ、該
圧縮機を用いることにより製品寿命を長期化できる空調
装置が得られる。As described above, according to the present invention,
A compressor having a low coefficient of friction and improved seizure resistance can be obtained, and an air conditioner capable of extending the product life by using the compressor can be obtained.
【表１】 [Table 1]
【表２】 [Table 2]
【表３】 [Table 3]
【表４】 [Table 4]
【図１】図１は本発明の一実施例として車両空調装置の
ロータリーベーンタイプ圧縮機の構成を示す断面図であ
り、そのうち、図１ａは軸線方向断面図であり、図１ｂ
は半径方向断面図である。FIG. 1 is a sectional view showing a configuration of a rotary vane type compressor of a vehicle air conditioner as one embodiment of the present invention, in which FIG. 1a is an axial sectional view and FIG.
Is a sectional view in the radial direction.
【図２】図２は、ベーンの断面図と、ベーンの一部を拡
大して示す部分拡大断面図である。FIG. 2 is a sectional view of a vane and a partially enlarged sectional view showing a part of the vane in an enlarged manner.
１ シリンダー ２ 前部側板 ３ 後部側板 ４ ロータ ５ 駆動軸 ６ 軸受 ７ ベーンスロット ８ ベーン ９ 吐出孔 １０ 高圧ガス室 １１ 吐出弁 １２ 吸入孔 １３ 給油室 １４ 通路 １５ 油溜り部 １６ 給油通路 １７ 円周溝 １８ シール用部材 １９ 圧縮室 ２０ 油溝 ２１ ベーン背後空間 ２２ 複層乾性潤滑被膜 ２２−１ 乾性被膜潤滑剤（乾性潤滑被膜） ２２−２ 固体潤滑剤被膜 Reference Signs List 1 cylinder 2 front side plate 3 rear side plate 4 rotor 5 drive shaft 6 bearing 7 vane slot 8 vane 9 discharge hole 10 high-pressure gas chamber 11 discharge valve 12 suction hole 13 oil supply chamber 14 passage 15 oil reservoir 16 oil supply passage 17 circumferential groove Reference Signs List 18 sealing member 19 compression chamber 20 oil groove 21 space behind vane 22 multilayer dry lubricating coating 22-1 dry coating lubricant (dry lubricating coating) 22-2 solid lubricant coating
───────────────────────────────────────────────────── フロントページの続き (72)発明者 北村 武男 大阪府門真市大字門真1006 松下電器産業 株式会社内 (72)発明者 足立 徹 大阪府門真市大字門真1006 松下電器産業 株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeo Kitamura 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Toru 1006 Kadoma Kadoma, Osaka Pref.
Claims (3)
された固体潤滑剤と結合剤とからなる乾性潤滑被膜と、
該乾性潤滑被膜上に、固体潤滑剤微粉末と合成樹脂粉末
とを高圧ガス体の流れに載せ、固体潤滑剤微粉末と合成
樹脂粉末とを含む高圧ガス体をノズルから部材の摺動面
に噴射するブラストコーティング法によって成膜された
固体潤滑剤被膜とからなることを特徴とする圧縮機内摺
動部材用複層乾性潤滑被膜。1. A dry lubricating coating comprising a solid lubricant and a binder formed on a sliding surface of a sliding member in a compressor,
On the dry lubricating film, the solid lubricant fine powder and the synthetic resin powder are placed in a flow of a high-pressure gas body, and the high-pressure gas body containing the solid lubricant fine powder and the synthetic resin powder is applied from the nozzle to the sliding surface of the member. A multi-layer dry lubricating film for a sliding member in a compressor, comprising a solid lubricant film formed by a blast coating method of spraying.
れる摺動部材において、前記摺動部材は圧縮機のシリン
ダの圧縮室内で移動するベーンであり、前記複層乾性潤
滑被膜はシリンダの開口部を閉じるように配置された前
部側板または後部側板に対して摺動するベーンの摺動面
に施されることを特徴とする摺動部材。2. A sliding member provided with a multilayer dry lubricating coating according to claim 1, wherein the sliding member is a vane that moves within a compression chamber of a cylinder of a compressor, and wherein the multilayer dry lubricating coating is A sliding member provided on a sliding surface of a vane that slides on a front side plate or a rear side plate arranged to close an opening of a cylinder.
れた摺動部材または請求項２に記載された摺動部材を用
いる圧縮機を用いたことを特徴とする空調装置。3. An air conditioner using a sliding member provided with the multilayer dry lubricating coating according to claim 1 or a compressor using the sliding member according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530697A JPH10246192A (en) | 1997-03-04 | 1997-03-04 | Plural layer dry lubricating film for sliding member in compressor and device using thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530697A JPH10246192A (en) | 1997-03-04 | 1997-03-04 | Plural layer dry lubricating film for sliding member in compressor and device using thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10246192A true JPH10246192A (en) | 1998-09-14 |
Family
ID=13283102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6530697A Pending JPH10246192A (en) | 1997-03-04 | 1997-03-04 | Plural layer dry lubricating film for sliding member in compressor and device using thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10246192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7377754B2 (en) | 2003-04-14 | 2008-05-27 | Kabushiki Kaisha Toyota Jidoshokki | Compressor |
| US8097569B2 (en) | 2003-04-14 | 2012-01-17 | Kabushiki Kaisha Toyota Jidoshokki | Coating composition for use in sliding parts |
-
1997
- 1997-03-04 JP JP6530697A patent/JPH10246192A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7377754B2 (en) | 2003-04-14 | 2008-05-27 | Kabushiki Kaisha Toyota Jidoshokki | Compressor |
| US8097569B2 (en) | 2003-04-14 | 2012-01-17 | Kabushiki Kaisha Toyota Jidoshokki | Coating composition for use in sliding parts |
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