JPS6251783A - Scroll compressor - Google Patents
Scroll compressorInfo
- Publication number
- JPS6251783A JPS6251783A JP60189503A JP18950385A JPS6251783A JP S6251783 A JPS6251783 A JP S6251783A JP 60189503 A JP60189503 A JP 60189503A JP 18950385 A JP18950385 A JP 18950385A JP S6251783 A JPS6251783 A JP S6251783A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- resin
- scroll
- metallic base
- metal base
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/90—Improving properties of machine parts
- F04C2230/91—Coating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、冷凍用あるいｆ″ｉ空調用として用いられる
スクロール圧縮機の構成に係り、特に生産性及び信頼性
の向上に有利な構造を提供するものである。Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to the structure of a scroll compressor used for refrigeration or f''i air conditioning, and particularly relates to a structure advantageous for improving productivity and reliability. This is what we provide.
第３図、第４図にスクロール圧縮機の動作概念図および
拡大断面図を示す。板状の歯を渦巻き伏に形成した固定
スクロールと、この固定スクロールと同−庇状の両全形
成した揺動スクロールとを対向して吠め合わせている。FIG. 3 and FIG. 4 show a conceptual diagram of the operation of the scroll compressor and an enlarged sectional view. A fixed scroll in which plate-shaped teeth are spirally formed, and an oscillating scroll in which both the fixed scroll and the fixed scroll have the same eave-like structure are placed facing each other.
揺動スクロールの回転により、歯は揺動運動して固定ス
クロールと揺動スクロールの歯の間に形成された圧縮室
の体積を頭次、縮小させながら中心部に移動させ、中心
部から圧縮気体を吐出するという動作機構である以上の
様な動作機構であるため、固定、揺動スクロールの歯の
先端、側面、底面の面精度および歯の寸法精度が悪い場
合、圧縮ガスの洩れにより圧縮比が低下したり、歯同志
のカジリにより歯が破損したりすることがあるので、非
常に高い寸法精度が必要とされる。このため、従来のス
クロール部材は、金属の精密切削加工に〔って製作され
ており多数の工数と加工時間を要するという欠点があっ
た。この欠点を改善するため、特開昭５８−９１３８８
号公報に記載されている様に、金属母材に樹脂層？精密
成ルすることにより、金属の高精密仕上げの工数を減ら
すという発明が提出されている。しかし金属母材と樹脂
層の密着性に関しては、何ら触れられておらず、特開昭
５９−２１８８８２号公報に、被覆面に複数条のＶ字形
溝を形成する発明が提出されているが、これは、精度向
上のためであシ、金属母材と樹脂層の密着性の向上には
効果がない。この様に、金属母材と樹脂層の密着性・接
着性を確保するための具体的なものではなく、信頼性に
対する配慮に欠けていて、実用化には困難である。As the oscillating scroll rotates, the teeth oscillate and move to the center while gradually reducing the volume of the compression chamber formed between the teeth of the fixed scroll and the oscillating scroll, and compressed gas is removed from the center. Because the operating mechanism is as described above, if the surface accuracy of the tips, sides, and bottom of the teeth of fixed and oscillating scrolls and the dimensional accuracy of the teeth are poor, the compression ratio may be affected due to leakage of compressed gas. Extremely high dimensional accuracy is required, as this may result in a decrease in the dimensional accuracy or damage to the teeth due to galling between the teeth. For this reason, conventional scroll members have been manufactured by precision cutting of metal, and have had the disadvantage of requiring a large number of man-hours and processing time. In order to improve this drawback, Japanese Patent Application Laid-Open No. 58-91388
As stated in the publication, is there a resin layer on the metal base material? An invention has been proposed that reduces the number of man-hours required for high-precision finishing of metals by precision molding. However, there is no mention of the adhesion between the metal base material and the resin layer, and although JP-A-59-218882 discloses an invention in which multiple V-shaped grooves are formed on the coated surface, This is done to improve accuracy, but has no effect on improving the adhesion between the metal base material and the resin layer. As described above, it is not a concrete method for ensuring adhesion and adhesion between the metal base material and the resin layer, and it lacks consideration for reliability, making it difficult to put into practical use.
本発明の目的は金属母材に樹脂を被覆する複合スクロー
ル部材において、表面粗さが粗い素材を用い、金属母材
と樹脂層の密着または接着強度の高いスクロール部材を
製作し、高い信頼性を有しかつ生産性に優れたスクロー
ル圧縮機の構成を提供することにある。The purpose of the present invention is to manufacture a composite scroll member in which a metal base material is coated with a resin by using a material with a rough surface and with high adhesion or adhesive strength between the metal base material and the resin layer, thereby achieving high reliability. An object of the present invention is to provide a configuration of a scroll compressor that has excellent productivity.
本発明は、スクロールの稼動時にかかるストレス条件と
して、高温、高圧、臨反サイクル等を考えた場合、金属
母材に、樹脂を単に被覆しただけでは実現できないとい
う認識と実験結果に基づいてなされた、すなわちスクロ
ールの歯部には稼動時常に繰り返えし曲げ応力がかかる
。このため金属母材と樹脂の間に何らかの接合力法を用
いなければ、短時間で金属母材と樹脂の剥離が起り、ス
クロール歯が破損したり、圧縮比が急激に低下すること
を見い出した。The present invention was made based on the recognition and experimental results that considering the stress conditions that occur during the operation of a scroll, such as high temperature, high pressure, and cycles of stress, it cannot be achieved by simply coating a metal base material with resin. That is, the teeth of the scroll are constantly subjected to repeated bending stress during operation. For this reason, it was discovered that unless some kind of bonding force method is used between the metal base material and the resin, the metal base material and the resin will peel off in a short period of time, resulting in damage to the scroll teeth and a sudden drop in the compression ratio. .
すなわち、金属母材との接合強度を増すためにシェル型
より安価な通常の砂を用いて砂型を造ルし鋳放しの鋳肌
を故意に粗くすることにより表面積（ｉ−増加させ、同
時に表面に凹凸をつけた金属母材を製作する。この金属
素材を型内に入れ高圧力にて樹脂を成ゼすることにより
、金属母材と樹脂の接触面積が広く、かつ金属母材の凹
凸に樹脂が入り込むことにより、金属母材と樹脂の接合
強度が高く、信頼性にすぐれた金属、プラスチック複合
スクロールが具現できることを、見い出した。In other words, in order to increase the bonding strength with the metal base material, a sand mold is made using regular sand, which is cheaper than that of a shell mold, and the as-cast surface is intentionally roughened, thereby increasing the surface area (i-) and at the same time increasing the surface area. A metal base material with unevenness is produced.By placing this metal material in a mold and forming a resin under high pressure, the contact area between the metal base material and the resin is wide and the unevenness of the metal base material is created. It has been discovered that by incorporating the resin, a metal/plastic composite scroll with high bonding strength between the metal base material and the resin and excellent reliability can be realized.
以下、本発明の実施例を第１図、第２図によシ説明する
。Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.
固定スクロールおよび揺動スクロールの母材は、鋳鉄あ
るいはアルミダイキャストなどの鋳造可能なもの、ある
いは熱間鍛造可能なもので、疲労強度が強く、剛性の高
いもの全周いる。The base materials of fixed scrolls and oscillating scrolls are cast iron, die-cast aluminum, or other castable materials, or hot forged materials that have strong fatigue strength and high rigidity.
鋳鉄で金属母材を製作する場合、砂型に用いる砂は最大
粒径３０〜４０μｍ程度のものを用いて鋳肌が面粗さ２
０Ｓ〜８０Ｂとなる様にする。また、アルミまたは熱間
鍛造可能な材料を金属母材として用いる場合は、鋳造ま
たμ鍛造後、シ、ットゴラスト等の方法によυ樹脂を被
覆する面の面粗さｆＫ ２０ Ｓ〜８０Ｂとなる様に、
粗面処理を行なう。樹脂の被覆は、射出成形、圧縮成形
、トランスファー成形等の、一般的な成形方法によるが
金属母材の粗面化処理することによりできる金属母材の
表面の凹凸に、樹脂をよくなじませるため射出圧等の、
成形時の圧力をやや高めにセットする。When manufacturing a metal base material from cast iron, the sand used for the sand mold should have a maximum grain size of about 30 to 40 μm, and the casting surface should have a surface roughness of 2.
Set it to 0S to 80B. In addition, when aluminum or a material that can be hot-forged is used as the metal base material, after casting or μ-forging, the surface roughness of the surface coated with μ-resin by a method such as Shi, Togorast, etc. will be fK 20 S ~ 80B. As,
Perform surface roughening. The resin coating is done by common molding methods such as injection molding, compression molding, and transfer molding, but in order to make the resin blend well with the irregularities on the surface of the metal base material, which are created by roughening the metal base material. Injection pressure, etc.
Set the molding pressure slightly higher.
以、上の様にして成形した、金属母材に樹脂を被返し曲
げ彼方試験においても剥離は認められず、実機に組込ん
での試験においても、明らかな剥離は認められなかった
。As mentioned above, no peeling was observed in the bending test in which the resin was applied to the metal base material molded as described above, and no obvious peeling was observed in the test using the resin in an actual machine.
以下、詳細な本発明の実施例を示す。Detailed examples of the present invention will be shown below.
金属母材を切削加工より６Ｓ程度に仕上げたものに対し
樹脂を成形したものの接合強度は、ばらつきが大きかっ
たが６０〜７０に９ｆ／ｃｄ程度であった。これに対し
砂型を使用して製作した金属母材に樹脂を成ルしたもの
の接合強度は約ｉｏ０に９／ｄと４０〜８０Ｋｇ／ｃｔ
１強度が増加する。また成形時のシリンダ一温度、射出
圧も接合強度に大きく影響を与え、通常のシリンダ一温
度より約２０°Ｃ温度金高くセットし、射出圧はマイコ
ン側倒方式を用い２段階の加圧とすることにより第８図
に示す様に金属母材の凹凸に樹脂がよくなじんだ成形複
合スクロール部材が得られた。通常の射出条件で成形し
たものは、金属母材の凹凸に樹脂が入り込まず、接合強
度も６０〜８０Ｋｑ／ｄと強度層はみられなかった。The bonding strength of the metal base material finished by cutting to about 6S and the resin molded was about 9 f/cd between 60 and 70, although there was a large variation. On the other hand, the bonding strength of resin molded onto a metal base material manufactured using a sand mold is approximately io0 to 9/d and 40 to 80 kg/ct.
1 strength increases. In addition, the cylinder temperature and injection pressure during molding greatly affect the bonding strength, so the temperature is set approximately 20°C higher than the normal cylinder temperature, and the injection pressure is set in two stages using a microcomputer tilting system. As a result, a molded composite scroll member was obtained in which the resin was well adapted to the irregularities of the metal base material, as shown in FIG. In those molded under normal injection conditions, the resin did not penetrate into the irregularities of the metal base material, and the bonding strength was 60 to 80 Kq/d, with no strength layer observed.
また第２図は粗面化処理した金属母材に金属とのぬれ性
がよい接着剤を塗布しその後、樹脂層をもうけた例を示
す。Further, FIG. 2 shows an example in which an adhesive having good wettability with metal is applied to a roughened metal base material, and then a resin layer is formed.
本発明によれば金属母材と樹脂間の接合強度が増加する
ので、複合スクロールの強度の耐久性が向上した。この
ため従来の機械加工による精密切削加工によるスクロー
ルの製作に比べ、工程を大巾に低減することができ、大
幅な設備投資効率の改善ができた。According to the present invention, the bonding strength between the metal base material and the resin is increased, so that the strength and durability of the composite scroll is improved. As a result, compared to manufacturing scrolls using conventional precision machining, the number of processes can be significantly reduced, resulting in a significant improvement in equipment investment efficiency.
第１図は本発明の一実施例により成形したスクロール部
材の歯部の断面図、第２図は本発明の一実施例により金
属母材に接着剤を塗布し樹脂を成形したスクロール部材
の歯部の断面図、第８図は従来の固定スクロール間を揺
動スクロールが揺動して気体を圧縮する機構の説明図、
第４図は固定スクロールと揺動スクロールの歯の部分の
拡大断面図である。FIG. 1 is a cross-sectional view of the teeth of a scroll member molded according to an embodiment of the present invention, and FIG. 2 is a sectional view of the teeth of a scroll member in which adhesive is applied to a metal base material and resin is molded according to an embodiment of the present invention. FIG. 8 is an explanatory diagram of a mechanism in which an oscillating scroll oscillates between fixed scrolls to compress gas;
FIG. 4 is an enlarged sectional view of the teeth of the fixed scroll and the swinging scroll.
Claims (1)
の固定スクロールの歯と同一形状の歯を形成した揺動ス
クロールとを対向して嵌め合わせ、上記揺動スクロール
の揺動運動により気体を圧縮、吐出しするもので、該固
定スクロール及び揺動スクロールの双方あるいはいずれ
かの一方の歯を構成する金属母材をグラファイト等の無
機物充填剤及びアラミッド繊維又はフッ素樹脂等の有機
物の双方あるいはいずれかの一方を充填した樹脂材料に
より被覆したスクロール圧縮機において、金属母材の表
面あるいは樹脂被覆面の面粗さが粗いものを使用するこ
とを特徴とするスクロール圧縮機。1. A fixed scroll with plate-shaped teeth formed in a spiral shape and an oscillating scroll with teeth of the same shape as the teeth of this fixed scroll are fitted facing each other, and gas is compressed by the oscillating motion of the oscillating scroll. , the metal base material constituting the teeth of both or one of the fixed scroll and the oscillating scroll is filled with an inorganic filler such as graphite and/or an organic material such as aramid fiber or fluororesin. 1. A scroll compressor coated with a resin material filled with one of the elements, characterized in that the surface of the metal base material or the resin-coated surface is rough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60189503A JPS6251783A (en) | 1985-08-30 | 1985-08-30 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60189503A JPS6251783A (en) | 1985-08-30 | 1985-08-30 | Scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6251783A true JPS6251783A (en) | 1987-03-06 |
Family
ID=16242359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60189503A Pending JPS6251783A (en) | 1985-08-30 | 1985-08-30 | Scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6251783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015046513A1 (en) * | 2013-09-27 | 2015-04-02 | 大豊工業株式会社 | Scroll member and scroll-type fluid machine |
-
1985
- 1985-08-30 JP JP60189503A patent/JPS6251783A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015046513A1 (en) * | 2013-09-27 | 2015-04-02 | 大豊工業株式会社 | Scroll member and scroll-type fluid machine |
| JP2015068208A (en) * | 2013-09-27 | 2015-04-13 | 大豊工業株式会社 | Scroll member and scroll type fluid machine |
| US9752579B2 (en) | 2013-09-27 | 2017-09-05 | Taiho Kogyo Co., Ltd. | Scroll member and scroll-type fluid machine |
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