JPH045491A - Scroll type fluid machine - Google Patents
Scroll type fluid machineInfo
- Publication number
- JPH045491A JPH045491A JP10357890A JP10357890A JPH045491A JP H045491 A JPH045491 A JP H045491A JP 10357890 A JP10357890 A JP 10357890A JP 10357890 A JP10357890 A JP 10357890A JP H045491 A JPH045491 A JP H045491A
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- fluid machine
- type fluid
- alloy
- fixed scroll
- 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
- 239000012530 fluid Substances 0.000 title claims description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007747 plating Methods 0.000 claims abstract description 12
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims abstract description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 11
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 239000013078 crystal Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 230000004520 agglutination Effects 0.000 abstract 1
- 230000005496 eutectics Effects 0.000 abstract 1
- 229910000676 Si alloy Inorganic materials 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011856 silicon-based particle Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- TVQLLNFANZSCGY-UHFFFAOYSA-N disodium;dioxido(oxo)tin Chemical compound [Na+].[Na+].[O-][Sn]([O-])=O TVQLLNFANZSCGY-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229940079864 sodium stannate Drugs 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は圧縮機、膨張機、モータ等として用いられるス
クロール型流体機械に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a scroll type fluid machine used as a compressor, an expander, a motor, etc.
（従来の技術）
スクロール型流体機械は第１図及び第２図に示されるよ
うに、固定スクロール１と旋回スクロール２とを備え、
これら固定スクロール１と旋回スクロール２はそのうす
巻き状ラップ１ａ、２ａの中心が所定の距離だけ偏心し
、かつ、これらの位相が相対的に１８０°ずれた状態で
その側面が相互に接触し、かつ、各うず巻き状ラップ１
ａ、２ａの先端面１ｃ、２ｃが相手側の端板２ｂ、１ｂ
の内面２ｄ、１ｄに接触する状態に噛み合わせられる。(Prior Art) As shown in FIGS. 1 and 2, a scroll type fluid machine includes a fixed scroll 1 and an orbiting scroll 2,
The fixed scroll 1 and the orbiting scroll 2 have the centers of their thinly wound wraps 1a and 2a eccentric by a predetermined distance, and their sides are in contact with each other while their phases are relatively shifted by 180 degrees, And each spiral wrap 1
The tip surfaces 1c, 2c of a, 2a are the opposite end plates 2b, 1b
are engaged in a state in which they are in contact with the inner surfaces 2d and 1d of.
そして、旋回スクロール２を固定スクロールｌに対して
上記偏心距離を半径する円軌道上をその自転を禁止した
状態で公転旋回運動させることによりこれら一対の固定
スクロール及び旋回スクロール２の噛み合いによって限
界される密閉小室３．４をうす巻きの中心方向へ移動さ
せながらその容積を漸次減少させて密閉小室３．４内の
ガスを圧縮し、中心部の吐出口５より吐出するようにな
っている。Then, by causing the orbiting scroll 2 to revolve around the fixed scroll 1 on a circular orbit having a radius of the above-mentioned eccentric distance in a state in which rotation is prohibited, the limit is determined by the meshing of the pair of fixed scrolls and the orbiting scroll 2. While moving the closed chamber 3.4 toward the center of the thin winding, its volume is gradually reduced to compress the gas inside the closed chamber 3.4 and discharge it from the discharge port 5 in the center.
従来の固定スクロール１及び旋回スクロール２はＡｌ−
Ｓｉ合金（Ｓｉ＞６ｗｔ％）からなり、旋回スクロール
２の噛合面、即ち、ラップ２ａの両側面及び先端面２ｃ
並びに端板２ｂの内面２ｄに硬質アルマイト処理を施す
ことによって耐焼付性及び耐摩耗性を向上している。The conventional fixed scroll 1 and orbiting scroll 2 are made of Al-
Made of Si alloy (Si>6wt%), the meshing surface of the orbiting scroll 2, that is, both sides of the wrap 2a and the tip surface 2c
Furthermore, the inner surface 2d of the end plate 2b is subjected to hard alumite treatment to improve seizure resistance and wear resistance.
（発明が解決しようとする課１５）
Ａｊ！−３ｉ合金はＳｉ成文が増える程鋳造の際に晶出
する初晶Ｓｉの量が多くなり、この初晶Ｓ■
声アルマイト処理に際しアルマイト皮膜の均一成長を阻
害するのみならずその表面限度を悪化させる。(Lesson 15 that the invention attempts to solve) Aj! In -3i alloys, as the Si composition increases, the amount of primary Si that crystallizes during casting increases, and this primary Si crystal not only inhibits the uniform growth of the alumite film during alumite treatment, but also worsens its surface limit. let
アルマイト皮膜の厚さを均一にするには電解電流密度を
均一に保つためのチタン製特殊電極や処理面の温度上昇
を抑制するための電解液強制攪拌装置等を要し、かつ、
処理時間も１５〜３０分を要するのでその処理コストが
嵩む。In order to make the thickness of the alumite film uniform, special titanium electrodes are required to keep the electrolytic current density uniform, and an electrolyte forced stirring device is required to suppress the temperature rise on the treated surface.
Since the processing time also takes 15 to 30 minutes, the processing cost increases.
また、アルマイト皮膜の表面粗度を向上するためには、
ラッピング加工等を施す必要があるため、そのコストが
嵩む等の不具合があった。In addition, in order to improve the surface roughness of the alumite film,
Since it is necessary to perform wrapping processing, etc., there are problems such as increased costs.
（課題を解決しようとする手段）
本発明は上記課題に対処するために発明されたものであ
って、第１の発明の要旨とするところは、固定スクロー
ルと旋回スクロールとを相互に噛合せてなるスクロール
型流体機械において、上記固定スクロール及び旋回スク
ロールをＡｆ−５ｉ合金で構成し、そのいずれか一方の
噛合面に錫メッキを施したことを特徴とするスクロール
型流体機械にある。(Means for Solving the Problems) The present invention was invented in order to solve the above problems, and the gist of the first invention is that a fixed scroll and an orbiting scroll are meshed with each other. The scroll type fluid machine is characterized in that the fixed scroll and the orbiting scroll are made of an Af-5i alloy, and the meshing surface of one of them is tin-plated.
第２の発明の要旨とするところは、固定スクロールと旋
回スクロールとを相互に噛合してなるスクロール型流体
機械において、上記固定スクロール及び旋回スクロール
をＡｌ１−３ｉ合金で構成し、合金そのいずれか一方の
噛合面に二硫化モリブデンのコーティングを施したこと
を特徴とするスクロール型流体機械にある。The gist of the second invention is a scroll type fluid machine in which a fixed scroll and an orbiting scroll are meshed with each other, wherein the fixed scroll and the orbiting scroll are made of an Al1-3i alloy, and either one of the alloys is A scroll-type fluid machine characterized by having molybdenum disulfide coating applied to the meshing surfaces of the scroll-type fluid machine.
（作用）
本発明においては、上記構成を具えているため、錫メッ
キ皮膜又は二硫化モリブデンのコーティング皮膜は固定
スクロールと旋回スクロールとの摺動接触面に介在して
自己潤滑作用をなし、摺動接触面の相互凝着を防止する
。そして、摺動接触面に介在する微少異物は錫メッキ皮
膜又は二硫化モリブデンのコーティング皮膜中に埋没し
、摺動接触面の引っ掻き傷及びこれが進展して発生する
相互凝着を防止する。(Function) Since the present invention has the above configuration, the tin plating film or the molybdenum disulfide coating film is interposed on the sliding contact surface between the fixed scroll and the orbiting scroll and has a self-lubricating effect, so that the sliding Prevents mutual adhesion of contact surfaces. The minute foreign matter present on the sliding contact surface is buried in the tin plating film or the molybdenum disulfide coating film, thereby preventing scratches on the sliding contact surface and mutual adhesion caused by the progress of the scratches.
（実施例１ン
固定スクロール１及び旋回スクロール２をＡｆ−６，９
％Ｓｉ合金（ＪＩＳＡＣ４Ｃ相当）により高圧凝固法で
鋳造した後、これを切削加工して所定の形状に仕上げる
。そして、旋回スクロール２をアルカリ液を用いて脱脂
洗浄した後、８０℃の錫酸ソーダ４５〜５０％ｇ／ｌ！
の化学メッキ液に３０秒間浸漬することによって厚さ５
μｍの錫メッキを施す。(Example 1) Fixed scroll 1 and orbiting scroll 2 were assembled into Af-6, 9
%Si alloy (equivalent to JISAC4C) by high-pressure solidification, and then cut into a predetermined shape. After degreasing and cleaning the orbiting scroll 2 using an alkaline solution, sodium stannate at 80° C. 45 to 50% g/l!
The thickness of 5.
Apply µm tin plating.
このようにして形成された旋回スクロール２と錫メッキ
を施さない固定スクロールｌとを互いに噛合させること
によって構成した圧縮機を運転し、両スクロールの噛合
面に焼付きが発生する限界吐出圧力を駆動ｉｔ流の変化
から求めると、この限界吐出圧力は３０Ｋｇ／ａＪ程度
となり、固定スクロール１及び旋回スクロール２の双方
に錫メッキを施していない圧縮機のそれの約１．５倍に
向上した。A compressor constructed by meshing the orbiting scroll 2 formed in this way with a fixed scroll l that is not tin-plated is driven to a critical discharge pressure at which seizing occurs on the meshing surfaces of both scrolls. As determined from the change in the IT flow, this critical discharge pressure was approximately 30 Kg/aJ, which was approximately 1.5 times higher than that of a compressor in which both the fixed scroll 1 and the orbiting scroll 2 were not tin-plated.
（実施例２）
Ａ １−２３．５％Ｓｉ合金（ＪＩＳＡＣＱＡ相当）を
用いて実施例１同様の方法で固定スクロールｌ及び旋回
スクロール２を鋳造し、かつ、所定の形状に仕上加工す
る。(Example 2) A Fixed scroll 1 and orbiting scroll 2 are cast using a method similar to Example 1 using a 1-23.5% Si alloy (equivalent to JISACQA), and are finished into a predetermined shape.
そして、旋回スクロール２を実施例１と同様にアルカリ
洗浄後、同し化学メッキ液に８２℃で１２０秒間浸漬し
て厚さ２０ｐｍの錫メッキを施す。Then, the orbiting scroll 2 is washed with alkali in the same manner as in Example 1, and then immersed in the same chemical plating solution at 82° C. for 120 seconds to provide tin plating to a thickness of 20 pm.
しかる後、実施例１と同様の方法で限界吐出圧力を求め
たら、上記錫メッキを施していない一対のスクロールを
有する圧縮機のそれに比し約２倍向上した。Thereafter, when the critical discharge pressure was determined in the same manner as in Example 1, it was approximately twice as high as that of the compressor having a pair of scrolls that were not tin-plated.
（実施例３）
旋回スクロール２を実施例２と同様の方法でアルカリ洗
浄後、ユボキシレジンをバインダとして焼付コーティン
グを施すことにより厚さ約５μｍの二硫化モリブデンの
皮膜を形成した。(Example 3) After the orbiting scroll 2 was washed with alkali in the same manner as in Example 2, a coating of molybdenum disulfide having a thickness of about 5 μm was formed by baking coating using uboxy resin as a binder.
しかる後、実施例１と同様の方法で限界吐出圧力を求め
ると、二硫化モリブデンのコーティングを施さない一対
のスクロールを有する圧縮機のそれの約２．５倍に向上
した。Thereafter, when the critical discharge pressure was determined in the same manner as in Example 1, it was found to be approximately 2.5 times higher than that of a compressor having a pair of scrolls not coated with molybdenum disulfide.
上記実施例１〜３においては、それぞれ旋回スクロール
に錫メッキ、又は、二硫化モリブデンのコーティングを
施したが、これに代えて固定スクロールに施すこともで
き、また、噛合面のみに施すこともできる。In Examples 1 to 3 above, the orbiting scroll was coated with tin or molybdenum disulfide, but the coating may be applied to the fixed scroll instead of this, or it may be applied only to the meshing surface. .
また、Ａｌ１−Ｓｉ合金のＳｉの含有率は５〜２５ｗｔ
１０とすることができ、錫メッキ皮膜の厚さは２〜２０
μｍとすることができ、二硫化モリブデンのコーティン
グ皮膜の厚さは３〜１０μ蒙とすることができる。In addition, the Si content of the Al1-Si alloy is 5 to 25 wt.
10, and the thickness of the tin plating film is 2 to 20.
The thickness of the molybdenum disulfide coating film can be 3 to 10 μm.
（発明の効果）
本発明においては、固定スクロール及び旋回スクロール
をＡｌ−Ｓｉ合金で構成し、そのいずれか一方の噛合面
に錫メッキ又は二硫化モリブデンのコーティングを施し
たため、これら一対のスクロールの摺動接触面の相互凝
着を防止できる。(Effects of the Invention) In the present invention, the fixed scroll and the orbiting scroll are made of an Al-Si alloy, and the meshing surface of one of them is coated with tin or molybdenum disulfide, so that the sliding of these pair of scrolls is Mutual adhesion of dynamic contact surfaces can be prevented.
これは、錫メッキ皮膜又は二硫化モリブデンのコーティ
ング皮膜は表面粗度が良く、かつ、軟質で展延性に冨み
、自己潤滑性を有するため、表面アラザの影響を少なく
でき、また、これら皮膜が切削加工によって表面から突
出した硬質の初晶Ｓ又は供晶Ｓｉ粒子を隠蔽して、Ｓｉ
粒子同志或いはＳｉ粒子と基地合金との直接接触を防止
するため初期なしみ性が向上するためと考えられる。This is because the tin plating film or molybdenum disulfide coating film has a good surface roughness, is soft, highly malleable, and has self-lubricating properties, so it can reduce the influence of surface roughness. By hiding the hard primary S or donor Si particles protruding from the surface by cutting, the Si
This is thought to be because the initial stain resistance is improved because direct contact between particles or Si particles and the base alloy is prevented.
かくして、枯渇潤滑条件となるスクロール型流体機械の
起動時や固定スクロールと旋回スクロルとの接触面圧が
高くなる運転条件下でもスクロール型流体機械が運転不
能となったり、その寿命が低下するのを防止できる。This prevents the scroll-type fluid machine from becoming inoperable or shortening its life even when the scroll-type fluid machine is started up under depleted lubrication conditions or under operating conditions where the contact surface pressure between the fixed scroll and the orbiting scroll is high. It can be prevented.
また、錫メッキは硬質アルマイト処理の１７５〜１／１
０の処理時間で施すことができる。また、二硫化モリブ
デンの焼付コーティングには時間を要するが、無人化す
ることができるので、安価に実施できる。In addition, tin plating is 175 to 1/1 that of hard alumite treatment.
It can be applied in a processing time of 0. Furthermore, although baking coating with molybdenum disulfide takes time, it can be done unmanned and therefore can be carried out at low cost.
第１図及び第２図はスクロール型流体機械の固定スクロ
ールと旋回スクロールの噛合状態を示し、第１図は第２
図のＩ−１線に沿う断面図、第２図は第１図の■−■線
に沿う断面図である。1 and 2 show the meshing state of the fixed scroll and the orbiting scroll of a scroll-type fluid machine, and FIG.
FIG. 2 is a sectional view taken along the line I-1 in the figure, and FIG. 2 is a sectional view taken along the line ■-■ in FIG.
Claims (2)
せてなるスクロール型流体機械において、上記固定スク
ロール及び旋回スクロールをＡｌ−Ｓｉ合金で構成し、
そのいずれか一方の噛合面に錫メッキを施したことを特
徴とするスクロール型流体機械。 スクロール型流体機械は第１図及び第２図に示されるよ
うに、固定スクロール１と旋回スクロール２とを備え、
これら固定スクロール１と旋回スクロール２はそのうず
巻き状ラップ１ａ、２ａの中心が所定の距離だけ偏心し
、かつ、これらの位相が相対的に１８０゜ずれた状態で
その側面が相互に接触し、かつ、各うず巻き状ラップ１
ａ、２ａの先端面１ｃ、２ｃが相手側の端板２ｂ、１ｂ
の内面２ｄ、１ｄに接触する状態に噛み合わせられる。(1) In a scroll type fluid machine in which a fixed scroll and an orbiting scroll are meshed with each other, the fixed scroll and the orbiting scroll are composed of an Al-Si alloy,
A scroll-type fluid machine characterized by tin plating on one of the engaging surfaces. As shown in FIGS. 1 and 2, the scroll type fluid machine includes a fixed scroll 1 and an orbiting scroll 2,
The fixed scroll 1 and the orbiting scroll 2 have the centers of their spiral wraps 1a and 2a eccentric by a predetermined distance, and their sides contact each other with their phases shifted by 180 degrees, and , each spiral wrap 1
The tip surfaces 1c, 2c of a, 2a are the opposite end plates 2b, 1b
are engaged in a state in which they are in contact with the inner surfaces 2d and 1d of.
してなるスクロール型流体機械において、上記固定スク
ロール及び旋回スクロールをＡｌ−Ｓｉ合金で構成し、
そのいずれか一方の噛合面に二硫化モリブデンのコーテ
ィングを施したことを特徴とするスクロール型流体機械
。(2) In a scroll type fluid machine formed by mutually meshing a fixed scroll and an orbiting scroll, the fixed scroll and the orbiting scroll are constructed of an Al-Si alloy,
A scroll type fluid machine characterized in that one of the engaging surfaces is coated with molybdenum disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10357890A JPH045491A (en) | 1990-04-19 | 1990-04-19 | Scroll type fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10357890A JPH045491A (en) | 1990-04-19 | 1990-04-19 | Scroll type fluid machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH045491A true JPH045491A (en) | 1992-01-09 |
Family
ID=14357669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10357890A Pending JPH045491A (en) | 1990-04-19 | 1990-04-19 | Scroll type fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045491A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7905715B2 (en) | 2003-06-17 | 2011-03-15 | Panasonic Corporation | Scroll compressor having a fixed scroll part and an orbiting scroll part |
| US11286141B2 (en) | 2018-03-30 | 2022-03-29 | Manitou Italia S.R.L. | Articulated self-propelled work machine |
| US11447379B2 (en) | 2018-10-09 | 2022-09-20 | J.C. Bamford Excavators Limited | Machine, controller and control method |
-
1990
- 1990-04-19 JP JP10357890A patent/JPH045491A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7905715B2 (en) | 2003-06-17 | 2011-03-15 | Panasonic Corporation | Scroll compressor having a fixed scroll part and an orbiting scroll part |
| US11286141B2 (en) | 2018-03-30 | 2022-03-29 | Manitou Italia S.R.L. | Articulated self-propelled work machine |
| US11447379B2 (en) | 2018-10-09 | 2022-09-20 | J.C. Bamford Excavators Limited | Machine, controller and control method |
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