JPH04179885A - Scroll type compressor - Google Patents

Scroll type compressor

Info

Publication number
JPH04179885A
JPH04179885A JP2305299A JP30529990A JPH04179885A JP H04179885 A JPH04179885 A JP H04179885A JP 2305299 A JP2305299 A JP 2305299A JP 30529990 A JP30529990 A JP 30529990A JP H04179885 A JPH04179885 A JP H04179885A
Authority
JP
Japan
Prior art keywords
key groove
key
scroll
orbiting scroll
alumite
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
Application number
JP2305299A
Other languages
Japanese (ja)
Inventor
Tsukasa Chiyotani
千代谷　司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2305299A priority Critical patent/JPH04179885A/en
Publication of JPH04179885A publication Critical patent/JPH04179885A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
    • F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling
    • 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
    • F04C18/0253—Details concerning the base
    • 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
    • F04C2230/92—Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F05C2201/0439—Cast iron
    • F05C2201/0442—Spheroidal graphite cast iron, e.g. nodular iron, ductile iron

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE:To increase surface hardness of key groove parts and improve a lubricating ability between key parts and the key groove parts by treating the key groove parts of a turning scroll consisting of aluminum alloy with alumite impregnated with molybdenum disulfide. CONSTITUTION:Key groove parts 26 arranged on an end plate 23 of a turning scroll 21 are treated with alumite impregnated electrically with molybdenum disulfide, and obverses of wall surfaces 28 and bottom surfaces 29 are coated with oxide film created simultaneously with this alumite treatment. Meanwhile, an Oldham's ring 22 consists, for example, of ductile iron and/or the like. Since the key groove parts 26 of the turning scroll 21 made of aluminum alloy are treated with the alumite, surface hardness can be increased so that abrasion resistance of the key groove parts 26 can be improved. Furthermore, since the alumite is impregnated electrically with the molybdenum disulfide in the case of carrying out the alumite treatment, a self lubricating ability of the oxide film created simultaneously with the alumite treatment can be improved.

Description

【発明の詳細な説明】 ［発明の目的コ （産業上の利用分野） 本発明は、例えば、旋回スクロールの自転防止機構とし
てオルダムリングを採用したスクロール形圧縮機に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Application Field) The present invention relates to a scroll compressor that employs an Oldham ring as a rotation prevention mechanism for an orbiting scroll, for example.

（従来の技術） 例えば、第６図に示すようなスクロール形圧縮機（以下
、圧縮機と称する）１は、それぞれが渦巻状のラップを
有する固定スクロール２と旋回スクロール３とを備えて
おり、両スクロール２．３を互いに偏心した状態で組合
わせて両スクロール２．３間に圧縮空間４・・・を形成
している。そして、圧縮機１は、固定スクロール２をケ
ース５に、フレーム６とともに固定している。(Prior Art) For example, a scroll type compressor (hereinafter referred to as a compressor) 1 as shown in FIG. 6 includes a fixed scroll 2 and an orbiting scroll 3, each of which has a spiral wrap. Both scrolls 2.3 are combined in an eccentric state to form a compression space 4 between both scrolls 2.3. In the compressor 1, a fixed scroll 2 is fixed to a case 5 together with a frame 6.

さらに、圧縮機１は、ケース５の中央部にクランクシャ
フト７を配置しており、このクランクシャフト７の上端
部に形成されたクランク軸部８を旋回スクロール３に下
方から差込んでいる。そして、圧縮機１は、クランクシ
ャフト７の主軸部９に外装された電動モータ１０により
クランクシャフト７を回転させ、旋回スクロール３を固
定スクロール２に対して旋回させる。Furthermore, the compressor 1 has a crankshaft 7 disposed in the center of the case 5, and a crankshaft portion 8 formed at the upper end of the crankshaft 7 is inserted into the orbiting scroll 3 from below. The compressor 1 then rotates the crankshaft 7 using an electric motor 10 mounted on the main shaft portion 9 of the crankshaft 7, thereby causing the orbiting scroll 3 to orbit relative to the fixed scroll 2.

つまり、圧縮機１は、旋回スクロール３の旋回に伴い、
両スクロール２．３間に冷媒ガス等の流体を吸込み、圧
縮空間４・・・の容積を徐々に小さくなるよう変化させ
て上記流体を圧縮する。In other words, as the orbiting scroll 3 rotates, the compressor 1
A fluid such as refrigerant gas is sucked between both scrolls 2 and 3, and the volume of the compression space 4 is gradually decreased to compress the fluid.

また、このような圧縮機１においては、旋回スクロール
３をその旋回時に自転しないよう規制する必要がある。Moreover, in such a compressor 1, it is necessary to restrict the orbiting scroll 3 from rotating when it orbits.

そして、旋回スクロール３の自転防止機構として、オル
ダムリング１１が採用されることかある。The Oldham ring 11 is sometimes employed as a rotation prevention mechanism for the orbiting scroll 3.

すなわち、このオルダムリング１１は、金属材料等を断
面矩形状の円環体に成形してなり、その両表面に２組の
キー部（１組のみ図示）１２．１２を一体に突設されて
いる。さらに、オルダムリング１１は、旋回スクロール
３とフレーム６とに略挾まれた状態で配置されており、
略９０度毎に逆向きに突出したキー部１２．１２を、旋
回スクロール３およびフレーム６のそれぞれに形成され
たキー溝部（１組のみ図示）１３．１３に差込んでいる
。That is, this Oldham ring 11 is formed by molding a metal material or the like into a toric body with a rectangular cross section, and has two sets of key parts (only one set shown) 12 and 12 integrally protruding from both surfaces thereof. There is. Further, the Oldham ring 11 is arranged approximately between the orbiting scroll 3 and the frame 6,
Key portions 12.12 protruding in opposite directions approximately every 90 degrees are inserted into key groove portions (only one set is shown) 13.13 formed in each of the orbiting scroll 3 and the frame 6.

そして、オルダムリング１１は、旋回スクロール３が旋
回した際に、キー部１２．１２をキー溝部１３．１３に
噛合せたままキー溝部１３．１３の壁面に摺動させて、
旋回スクロール３の自転を規制する。Then, when the orbiting scroll 3 rotates, the Oldham ring 11 slides on the wall surface of the key groove part 13.13 while keeping the key part 12.12 engaged with the key groove part 13.13.
The rotation of the orbiting scroll 3 is restricted.

ここで、第６図においては、旋回スクロール３の側のキ
ー溝部１３．１３、および、このキー溝部１３．１３に
係止する旋回スクロール３の側のキー部１２．１２のみ
を示している。Here, in FIG. 6, only the keyway portion 13.13 on the side of the orbiting scroll 3 and the key portion 12.12 on the side of the orbiting scroll 3 that is engaged with this keyway portion 13.13 are shown.

（発明が解決しようとする課題） ところで、オルダムリング１１のキー部１２．１２と旋
回スクロール３のキー溝部１３．１３との間に給油によ
る潤滑を行った圧縮機１は少なく、互いに摺動するキー
部１２．１２とキー溝部１３．１３とは、一般に、厳し
い摺動条件下におかれている。このため、例えば特開昭
６２−１亀９９９８２号公報や実開平１−１５７２９３
号公報に鉛載されているように、オルダムリング１１、
或いは、旋回スクロール３に表面処理を施すことが行わ
れている。(Problem to be Solved by the Invention) By the way, there are few compressors 1 in which the key part 12.12 of the Oldham ring 11 and the key groove part 13.13 of the orbiting scroll 3 are lubricated by oil supply, and the key part 12.12 of the Oldham ring 11 and the key groove part 13.13 of the orbiting scroll 3 are lubricated by oil supply. The key portion 12.12 and the keyway portion 13.13 are generally subjected to severe sliding conditions. For this reason, for example, Japanese Unexamined Patent Publication No. 62-1 Kame99982 and Utility Model Application No. 1-157293
As stated in the publication, Oldham ring 11,
Alternatively, the orbiting scroll 3 is subjected to surface treatment.

そして、アルミ合金製の旋回スクロールと鋳鉄製のオル
ダムリングとを組合せたスクロール形圧縮機においては
、旋回スクロールの表面硬度よりもオルダムリングの表
面硬度の方が高く、旋回スクロールのキー溝部が摩耗し
易い。In a scroll compressor that combines an aluminum alloy orbiting scroll and a cast iron Oldham ring, the surface hardness of the Oldham ring is higher than that of the orbiting scroll, and the key groove portion of the orbiting scroll may wear out. easy.

本発明の目的とするところは、アルミ合金製の旋回スク
ロールと鋳鉄製のオルダムリングとを組合せたスクロー
ル形圧縮機において、キー溝部の表面硬度を高めるとと
もにキー部とキー溝部との間の潤滑性を向上し、耐摩耗
性および摺動性に優れ、信頼性の高（１スクロ一ル形圧
縮機を提供することにある。The object of the present invention is to improve the surface hardness of the keyway part and improve the lubricity between the keyway part and the keyway part in a scroll compressor that combines an orbiting scroll made of aluminum alloy and an Oldham ring made of cast iron. Our objective is to provide a single-scroll type compressor with improved wear resistance, sliding properties, and high reliability.

［発明の構成］ （課題を解決するための手段および作用）上記目的を達
成するために本発明は、鋳鉄からなり複数のキー部を突
出させたオルダムリングと、アルミ合金からなりキー部
が差込まれるキー溝部を有し、固定スクロールと組合い
、キー溝部とキー部とを摺動させながら固定スクロール
に対して旋回する旋回スクロールとを備えたスクロール
形圧縮機において、キー溝部に二硫化モリブデンを含浸
したアルマイト処理を施したことにある。[Structure of the Invention] (Means and Effects for Solving the Problem) In order to achieve the above object, the present invention provides an Oldham ring made of cast iron with a plurality of protruding key parts, and an Oldham ring made of aluminum alloy with different key parts. Molybdenum disulfide is added to the keyway in a scroll compressor, which is equipped with an orbiting scroll that is combined with a fixed scroll and rotates relative to the fixed scroll while sliding the keyway and the key. This is due to the alumite treatment impregnated with.

こうすることによって本発明は、キー溝部の表面硬度を
高めるとともにキー部とキー溝部との間の潤滑性を向上
し、スクロール形圧縮機の信頼性を向上できるようにし
たことにある。By doing so, the present invention is capable of increasing the surface hardness of the key groove portion, improving the lubricity between the key portion and the key groove portion, and improving the reliability of the scroll compressor.

（実施例） 以下、本発明の一実施例の要部を第１図（ａ）〜第５図
に基づいて説明する。(Example) Hereinafter, main parts of an example of the present invention will be described based on FIGS. 1(a) to 5.

第１図（ａ）〜第２図（ｂ）は本発明の一実施例の要部
を示すもので、第１図（ａ）および（ｂ）中の２１は旋
回スクロール、第２図（ａ）および（ｂ）中の２２はオ
ルダムリングを示している。1(a) to 2(b) show the main parts of an embodiment of the present invention, 21 in FIGS. 1(a) and 2(b) is an orbiting scroll; 22 in ) and (b) indicates Oldham's ring.

これらのうち旋回スクロール２１は、例えばＡＣ８Ｃ等
のアルミ合金からなるものであり、円板状の鏡板２３の
両板面２３ａ、２３ｂに渦巻状のラップ２４とボス部２
５とをそれぞれ突設されている。さらに、旋回スクロー
ル２１はこれらラップ２４とボス部２５とを、鏡板２３
の両板面２３ａ、２３ｂの中央部に配置している。Among these, the orbiting scroll 21 is made of an aluminum alloy such as AC8C, and has a spiral wrap 24 and a boss portion 2 on both plate surfaces 23a and 23b of a disk-shaped end plate 23.
5 are protruded from each other. Furthermore, the orbiting scroll 21 connects these wraps 24 and boss portions 25 to the end plate 23.
It is arranged at the center of both plate surfaces 23a and 23b.

そして、旋回スクロール２１は、ラップ２４を図示しな
い固定スクロールのラップに噛合せて固定スクロールと
組合うとともに、ボス部２５に同じく図示しないクラン
クシャフトのクランク軸部を差込まれる。The orbiting scroll 21 is combined with the fixed scroll by meshing the wrap 24 with the wrap of the fixed scroll (not shown), and a crankshaft portion of a crankshaft (also not shown) is inserted into the boss portion 25.

さらに、旋回スクロール２１の鏡板２３には２つのキー
溝部２６．２６が設けられている。これらキー溝部２６
．２６は、ボス部２５が位置する側の板面２３ｂに配置
されており、互いに略１８０度離間している。さらに、
キー溝部２６．２６は、鏡板２３の周面２７と上記一方
の板面２３ｂとに開口するとともに、鏡板２３の外周側
から中心側に向って直線状に延びている。そして、キー
溝部２６．２６は略全体を同幅に設定されており、さら
に、その先端部の形状を半円状に設定されている。また
、キー溝部２６．２６はその深さを、略全体に亘って等
しく設定されている。Further, the end plate 23 of the orbiting scroll 21 is provided with two keyway portions 26 and 26. These key groove portions 26
．． 26 are arranged on the plate surface 23b on the side where the boss portion 25 is located, and are spaced apart from each other by approximately 180 degrees. moreover,
The keyway portions 26.26 are open to the circumferential surface 27 of the end plate 23 and the one plate surface 23b, and extend linearly from the outer circumferential side of the end plate 23 toward the center. The key groove portions 26, 26 are set to have substantially the same width throughout, and furthermore, the shape of the tip portion thereof is set to be semicircular. Further, the depth of the key groove portions 26, 26 is set to be equal over substantially the entirety thereof.

さらに、キー溝部２６．２６は、二硫化モリブデン（Ｍ
ＯＳ２）を電気的に含浸させたアルマイト処理を施され
ており、壁面２８．２８および底面２９．２９の表面を
、このアルマイト処理に伴って生じた酸化被膜により覆
われている。Furthermore, the keyway portion 26.26 is molybdenum disulfide (M
Alumite treatment is performed by electrically impregnating OS2), and the surfaces of wall surfaces 28, 28 and bottom surfaces 29, 29 are covered with an oxide film produced as a result of this alumite treatment.

一方、オルダムリング２２は、例えばＦＣＤ４５（ダク
タイル鋳鉄）等からなるものであり、断面矩形状の円環
体からなる本体３０と、この本体３０の両表面に交互に
突設された４つの直方体状のキー部３１．３１．３２．
３２とにより構成されている。そして、オルダムリング
２２は、キー部３１．３１．３２．３２を、２つを１組
として本体３０の各表面に１８０度間隔で並べるととも
に、全体として略９０度間隔で並べている。On the other hand, the Oldham ring 22 is made of, for example, FCD45 (ductile cast iron), and includes a main body 30 consisting of a toric body with a rectangular cross section, and four rectangular parallelepipeds protruding alternately from both surfaces of the main body 30. Key part 31.31.32.
32. In the Oldham ring 22, the key portions 31, 31, 32, and 32 are arranged in sets of two on each surface of the main body 30 at 180 degree intervals, and are arranged at approximately 90 degree intervals as a whole.

そして、オルダムリング２２は、旋回スクロール２１と
例えばフレーム（図示しない）との間に挾み込まれた状
態で配置され、同一方向に突田した１組のキー部３１．
３１を、旋回スクロール２１のキー溝部２６．２６に差
込んで旋回スクロール２１に係合させる。The Oldham ring 22 is placed between the orbiting scroll 21 and, for example, a frame (not shown), and includes a set of key portions 31 projected in the same direction.
31 is inserted into the keyway portion 26.26 of the orbiting scroll 21 and engaged with the orbiting scroll 21.

そして、オルダムリング２２は、旋回スクロール２１が
旋回した際に、旋回スクロール２１１；対して相対変位
し、キー部３１．３１をキー溝部２６．２６に噛合せた
ままキー溝部３１．３１の壁面２８．２８等に摺動させ
る。そして、オルダムリング２２は、キー部３１．３１
、を旋回スクロール２１に係止させ、旋回スクロール２
１を自転しないよう規制する。When the orbiting scroll 21 rotates, the Oldham ring 22 is displaced relative to the orbiting scroll 211; and the wall surface 28 of the key groove 31.31 remains in mesh with the key groove 26.26. .28 etc. slide it. The Oldham ring 22 has key parts 31 and 31.
, is locked to the orbiting scroll 21, and the orbiting scroll 2
1 so that it does not rotate.

すなわち、上述のような旋回スクロール２１とオルダム
リング２２とを組合せたスクロール形圧縮機においては
、アルミ合金製の旋回スクロール２１のキー溝部２６．
２６にアルマイト処理が施されているので、キー溝部２
６に酸化被膜を形成することができる。そして、キー溝
部２６．２６の表面硬度を高めることができ、キー溝部
２６．２６の耐摩耗性が向上する。That is, in the scroll compressor in which the orbiting scroll 21 and the Oldham ring 22 are combined as described above, the keyway portion 26 of the orbiting scroll 21 made of aluminum alloy.
26 is anodized, so the key groove part 2
An oxide film can be formed on 6. Then, the surface hardness of the key groove portion 26.26 can be increased, and the wear resistance of the key groove portion 26.26 is improved.

さらに、アルマイト処理の際に二硫化モリブデンが電気
的に含浸されているので、アルマイト処理に伴って生じ
る酸化被膜の自己潤滑性を向上させることができる。Furthermore, since molybdenum disulfide is electrically impregnated during the alumite treatment, the self-lubricating properties of the oxide film produced during the alumite treatment can be improved.

したがって、キー溝部２６．２６の耐摩耗性と摺動性と
を同時に向上させることができる。そして、スクロール
形圧縮機の信頼性を向上させることができる。Therefore, the wear resistance and sliding properties of the keyway portions 26.26 can be improved at the same time. In addition, the reliability of the scroll compressor can be improved.

ここで、第３図〜第５図は、従来のスクロール形圧縮機
の特性と、上述の旋回スクロール２１とオルダムリング
２２とを備えたスクロール形圧縮機の特性とを比較して
いる。そして、第３図は運転時間と旋回スクロールのキ
ー溝部の摩耗量との関係を示しており、第４図は同じく
運転時間とオルダムリングのキー部の摩耗量との関係を
示している。さらに、第５図はキー溝部の摩耗量とキー
部の摩耗量との合計を示している。Here, FIGS. 3 to 5 compare the characteristics of a conventional scroll compressor and the characteristics of a scroll compressor equipped with the above-mentioned orbiting scroll 21 and Oldham ring 22. FIG. 3 shows the relationship between the operating time and the amount of wear on the keyway portion of the orbiting scroll, and FIG. 4 similarly shows the relationship between the operating time and the amount of wear on the keyway portion of the Oldham ring. Furthermore, FIG. 5 shows the sum of the wear amount of the key groove portion and the wear amount of the key portion.

そして、各図中において本実施例のスクロール形圧縮機
の特性は実線３３ａ、３４ａｓ　３５ａによって表され
ており、従来のスクロール形圧縮機の特性は一点鎖線３
３ｂ、３４ｂ、３５ｂによって表されている。In each figure, the characteristics of the scroll compressor of this embodiment are represented by solid lines 33a, 34as 35a, and the characteristics of the conventional scroll compressor are represented by the dashed line 3.
3b, 34b, 35b.

［発明の効果コ 以上説明したように本発明は、鋳鉄からなり複数のキー
部を突出させたオルダムリングと、アルミ合金からなり
キー部が差込まれるキー溝部を有し、固定スクロールと
組合い、キー溝部とキー部とを摺動させながら固定スク
ロールに対して旋回する旋回スクロールとを備えたスク
ロール形圧縮機において、キー溝部に二硫化モリブデン
を含浸したアルマイト処理を施したものである。[Effects of the Invention] As explained above, the present invention has an Oldham ring made of cast iron with a plurality of protruding key parts, and a key groove part made of aluminum alloy into which the key parts are inserted, and which is combined with a fixed scroll. , a scroll compressor equipped with an orbiting scroll that rotates relative to a fixed scroll while sliding the key groove, and the key groove is alumite-treated by impregnating it with molybdenum disulfide.

したがって本発明は、キー溝部の表面硬度を高めるとと
もにキー部とキー溝部との間の潤滑性を向上させること
ができ、スクロール形圧縮機の信頼性を向上できるとい
う効果がある。Therefore, the present invention has the effect of increasing the surface hardness of the keyway portion and improving the lubricity between the keyway portion and the keyway portion, thereby improving the reliability of the scroll compressor.

【図面の簡単な説明】[Brief explanation of drawings]

第１図（ａ）〜第５図は本発明の一実施例の要部を示す
もので、ｊ＠１図（ａ）旋回スクロールの側断面図、第
１図（ｂ）は同じく旋回スクロールの平面図、第２図（
ａ）はオルダムリングの側面図、第２図（ｂ）は同じく
オルダムリングの平面図、第３図はキー溝部の摩耗量の
変化を示すグラフ、ｊＩ４図はキー部の摩耗量の変化を
示す同じくグラフ、第５図は摩耗量の合計を示す同じく
グラフである。 第６図は従来のスクロール形圧縮機を示す側断面図であ
る。 ２・・・固定スクロール、２１・・・旋回スクロール、
２２・・・オルダムリング、２６．２６・・・キー溝部
、３１．３１・・・キー部。 出願人代理人　弁理士　鈴江武彦 第３図 ＃１４図 第１図 １１２図Figures 1(a) to 5 show essential parts of an embodiment of the present invention, and Figure 1(a) is a side sectional view of an orbiting scroll, and Figure 1(b) is a side sectional view of an orbiting scroll. Plan view, Figure 2 (
a) is a side view of the Oldham ring, Figure 2(b) is a plan view of the Oldham ring, Figure 3 is a graph showing changes in the amount of wear on the keyway, and Figure jI4 shows changes in the amount of wear on the key. Similarly, FIG. 5 is a graph showing the total amount of wear. FIG. 6 is a side sectional view showing a conventional scroll compressor. 2...Fixed scroll, 21...Orbiting scroll,
22...Oldham ring, 26.26...Key groove part, 31.31...Key part. Applicant's agent Patent attorney Takehiko Suzue Figure 3 #14 Figure 1 Figure 112

Claims (1)

【特許請求の範囲】[Claims] 　鋳鉄からなり複数のキー部を突出させたオルダムリン
グと、アルミ合金からなり上記キー部が差込まれるキー
溝部を有し、固定スクロールと組合い、上記キー溝部と
上記キー部とを摺動させながら上記固定スクロールに対
して旋回する旋回スクロールとを備えたスクロール形圧
縮機において、上記キー溝部に二硫化モリブデンを含浸
したアルマイト処理を施したことを特徴とするスクロー
ル形圧縮機。It has an Oldham ring made of cast iron with a plurality of protruding key parts, and a key groove part made of aluminum alloy into which the key parts are inserted, and combined with a fixed scroll, the key groove part and the key part slide. A scroll compressor comprising an orbiting scroll that revolves relative to the fixed scroll, wherein the key groove portion is subjected to an alumite treatment impregnated with molybdenum disulfide.
JP2305299A 1990-11-09 1990-11-09 Scroll type compressor Pending JPH04179885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2305299A JPH04179885A (en) 1990-11-09 1990-11-09 Scroll type compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2305299A JPH04179885A (en) 1990-11-09 1990-11-09 Scroll type compressor

Publications (1)

Publication Number Publication Date
JPH04179885A true JPH04179885A (en) 1992-06-26

Family

ID=17943433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2305299A Pending JPH04179885A (en) 1990-11-09 1990-11-09 Scroll type compressor

Country Status (1)

Country Link
JP (1) JPH04179885A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679809A2 (en) * 1994-04-28 1995-11-02 Kabushiki Kaisha Toshiba Compressor and refrigerating unit
JPH10103261A (en) * 1996-09-27 1998-04-21 Sanyo Electric Co Ltd Scroll compressor
US6358028B1 (en) * 1998-10-15 2002-03-19 Hitachi, Ltd. Scroll compressor
WO2008035690A1 (en) * 2006-09-21 2008-03-27 Daikin Industries, Ltd. Rotation preventing member and scroll compressor
JP2010037975A (en) * 2008-08-01 2010-02-18 Panasonic Corp Sliding member for compressor
US8241022B2 (en) 2006-09-21 2012-08-14 Daikin Industries, Ltd. Rotation-preventing member and scroll compressor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679809A2 (en) * 1994-04-28 1995-11-02 Kabushiki Kaisha Toshiba Compressor and refrigerating unit
EP0679809A3 (en) * 1994-04-28 1996-11-20 Toshiba Kk Compressor and refrigerating unit.
JPH10103261A (en) * 1996-09-27 1998-04-21 Sanyo Electric Co Ltd Scroll compressor
SG101916A1 (en) * 1996-09-27 2004-02-27 Sanyo Electric Co Scroll compressor
KR100470433B1 (en) * 1996-09-27 2005-05-31 산요덴키가부시키가이샤 Scroll compressor
US6358028B1 (en) * 1998-10-15 2002-03-19 Hitachi, Ltd. Scroll compressor
WO2008035690A1 (en) * 2006-09-21 2008-03-27 Daikin Industries, Ltd. Rotation preventing member and scroll compressor
US8241022B2 (en) 2006-09-21 2012-08-14 Daikin Industries, Ltd. Rotation-preventing member and scroll compressor
JP2010037975A (en) * 2008-08-01 2010-02-18 Panasonic Corp Sliding member for compressor

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