JPS6388294A - Blade of rotary compressor - Google Patents
Blade of rotary compressorInfo
- Publication number
- JPS6388294A JPS6388294A JP23177786A JP23177786A JPS6388294A JP S6388294 A JPS6388294 A JP S6388294A JP 23177786 A JP23177786 A JP 23177786A JP 23177786 A JP23177786 A JP 23177786A JP S6388294 A JPS6388294 A JP S6388294A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- rotary compressor
- blades
- sintered body
- cylinder
- 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
- 229910000997 High-speed steel Inorganic materials 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000005470 impregnation Methods 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 229910052804 chromium Inorganic materials 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 3
- 229910052721 tungsten Inorganic materials 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract 2
- 229910052720 vanadium Inorganic materials 0.000 abstract 2
- 239000011651 chromium Substances 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 206010010904 Convulsion Diseases 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は焼結体で形成したロータリコンプレッサのブレ
ードに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a rotary compressor blade formed of a sintered body.
（従来の技術）
空気調和機などに用いられるロータリコンプレッサは、
図面で示すようにシリンダ１の内部に回転軸２に偏心し
て取付けたロータ３を回転自在に設け、シリンダの壁部
に内外に貫通して形成した孔４にブレード５を摺動自在
に挿通し、このブレード５の先端をロータ３の外周面に
接触させ、ざらにばね６によりブレード５にロータへの
接触力を与えた構成をなしている。そして、回転軸２に
よりロータ３を回転させ、シリンダ１に形成した吸込ロ
アからロータ３とブレード５により仕切られたシリンダ
１の一方の内部空間にガスを吸込み、さらにロータ３の
回転によりガスを圧縮してシリンダ１に形成した吐出口
８から吐出するものである。(Conventional technology) Rotary compressors used in air conditioners, etc.
As shown in the drawing, a rotor 3 eccentrically attached to a rotating shaft 2 is rotatably provided inside a cylinder 1, and a blade 5 is slidably inserted into a hole 4 formed through the wall of the cylinder from the inside and outside. The tip of the blade 5 is brought into contact with the outer circumferential surface of the rotor 3, and a spring 6 applies a contact force to the rotor to the blade 5. Then, the rotor 3 is rotated by the rotating shaft 2, gas is sucked into one internal space of the cylinder 1 partitioned by the rotor 3 and the blades 5 from the suction lower formed in the cylinder 1, and the gas is further compressed by the rotation of the rotor 3. The liquid is then discharged from a discharge port 8 formed in the cylinder 1.
しかして、このロータリコンプレッサに用いるブレード
はその用途のために、次ぎの様なことが要求されている
。ブレード５は回転するロータ３に摺接するために、基
本的にはロータ３との摺接に耐えうる優れた耐摩耗性が
要求される。これに加えてブレード５はシリンダ１の孔
４に摺接するために、この孔４に摺接する部分の表面に
孔４の局面に対する初期潤滑性を有することが要求され
る。すなわち、ロータリコンプレッサを運転するに際し
て、その初期においては、ブレードがシリンダの孔に対
してかじりや焼き付けが生じないように良好な潤滑状態
で摺接することが重要であって、運転初期にブレード５
がシリンダー１に良好な潤滑状態で摺接することにより
、その後の運転においてブレード５が円滑に動作するこ
とが出来る。しかし、ブレード５の初期潤滑性が悪いと
、ロータリコンプレッサの運転中にブレード５のシリン
ダ１に対する潤滑状態が悪化して焼付きなどを生じてブ
レード５が動作しなくなりロータリコンプレッサの運転
に支障をきたすことになる。The blades used in this rotary compressor are required to meet the following requirements for their intended use. Since the blades 5 come into sliding contact with the rotating rotor 3, they are basically required to have excellent wear resistance to withstand the sliding contact with the rotor 3. In addition, since the blade 5 comes into sliding contact with the hole 4 of the cylinder 1, the surface of the portion that comes into sliding contact with the hole 4 is required to have initial lubricity with respect to the surface of the hole 4. In other words, when operating a rotary compressor, it is important that the blades slide against the cylinder holes in a well-lubricated state to prevent galling or seizing.
By slidingly contacting the cylinder 1 with good lubrication, the blade 5 can operate smoothly during subsequent operations. However, if the initial lubricity of the blades 5 is poor, the lubrication condition of the blades 5 to the cylinder 1 deteriorates during operation of the rotary compressor, resulting in seizure, etc., which prevents the blades 5 from operating and impedes the operation of the rotary compressor. It turns out.
（発明が解決しようとする問題点）
しかして、本発明の発明者は、ロータリコンプレッサに
おいては、前記に要望に対処してブレードに耐摩耗性を
持たせるためにブレードを溶製材料のダイス鋼または高
速度鋼により形成することを試みた。一方、鉄系材料に
潤滑性をもたせる方法としてりん酸塩被膜処理を試みた
。(Problems to be Solved by the Invention) In order to meet the above-mentioned demands and to provide the blades with abrasion resistance, the inventors of the present invention have developed a method for making blades made of die steel made of ingot material in order to provide wear resistance to the blades of rotary compressors. Alternatively, an attempt was made to form it using high-speed steel. On the other hand, we attempted phosphate coating treatment as a method of imparting lubricity to iron-based materials.
しかるに、ダイス鋼および高速度鋼を持たせるために他
の鉄系材料に比較して多くのクロムを含有している。し
かし、りん酸塩被膜処理は前記の様なハイ・クロム材料
に対しては処理することができないという欠点があるこ
とが判った。このため、ダイス鋼または高速度鋼で形成
したブレードにりん酸塩被膜処理を施すことができず、
ブレードに初期潤滑性をもたせることができない。そこ
で、シリンダを鋳鉄で形成し、このシリンダの孔の内周
面にりん酸塩被膜処理を施して、シリンダとブレードと
の間に潤滑作用をもたせる様にしている。しかしながら
、この場合には十分な初期潤滑性を持たせることができ
ず、しかもシリンダに被膜を形成する作業のコストが高
くなる。However, in order to make it a die steel and a high-speed steel, it contains more chromium than other iron-based materials. However, it has been found that phosphate coatings have the disadvantage of not being able to treat high chromium materials such as those mentioned above. For this reason, it is not possible to apply a phosphate coating to blades made of die steel or high-speed steel.
It is not possible to provide initial lubricity to the blade. Therefore, the cylinder is made of cast iron, and the inner peripheral surface of the cylinder hole is treated with a phosphate coating to provide a lubricating effect between the cylinder and the blade. However, in this case, sufficient initial lubricity cannot be provided, and the cost of forming the coating on the cylinder increases.
本発明は前記事情に基づいてなされたもので、優れた耐
摩耗性と初期ｒＡＷ４性を併せ持ったブレードを備えた
ロータリコンプレッサのブレードを提供することを目的
とする。The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to provide a rotary compressor blade having both excellent wear resistance and initial rAW4 properties.
（問題点を解決するための手段と作用）前記目的を達成
するために本発明のロータリコンプレッサのブレードは
、鉄系酸化物が体積比で１５〜３０％存在する高速度鋼
またはダイス鋼の焼結体で形成され、且つ含油処理を施
してなることを特徴とするものである。(Means and effects for solving the problems) In order to achieve the above object, the blades of the rotary compressor of the present invention are made of high speed steel or die steel in which iron-based oxides exist in an amount of 15 to 30% by volume. It is characterized by being formed of solids and subjected to oil impregnation treatment.
以下本発明について説明する。The present invention will be explained below.
本発明のロータリコンプレッサのブレードは、高速度鋼
またはダイス鋼からなる焼結体で形成している。高速度
鋼およびダイス鋼は、大きな摩耗抵抗と高温強度を有し
ており、ブレードに要求される優れた耐摩耗性をもたせ
ることができる。本発明で用いる高速度鋼の代表的な組
成は、重量比でカーボン（Ｃ）０．８〜１．５％、クロ
ム（Ｃｒ）３〜５％、タングステン（Ｗ）５〜７％、バ
ナジウム（Ｖ）１〜３％、コバルト（Ｃｏ）１％以下、
残部実質的に鉄（Ｆｅ）からなるものである。また、ダ
イス鋼の代表的な組成は、重量比でカーボン（Ｃ）１．
５〜２．５％、クロム（Ｃｒ）１〜３％、モリブデン（
Ｍｏ）０．５〜２％、バナジウム（Ｖ）１〜３％、残部
実質的に鉄（Ｆｅ）からなるものである。The blades of the rotary compressor of the present invention are made of a sintered body made of high-speed steel or die steel. High speed steel and die steel have high wear resistance and high temperature strength, and can provide the excellent wear resistance required for blades. The typical composition of the high-speed steel used in the present invention is carbon (C) 0.8-1.5%, chromium (Cr) 3-5%, tungsten (W) 5-7%, vanadium ( V) 1 to 3%, cobalt (Co) 1% or less,
The remainder essentially consists of iron (Fe). In addition, the typical composition of die steel is carbon (C) 1.
5-2.5%, chromium (Cr) 1-3%, molybdenum (
Mo) 0.5 to 2%, vanadium (V) 1 to 3%, and the remainder substantially iron (Fe).
焼結体の焼結密度は、６．０〜６．５ｇ／ａ３、好まし
くは６．３９／α３とする。これは焼結体にコンプレッ
サのブレードとして必要な気密性をもたせ、さらに焼結
体に後述する所定量の鉄系酸化物を生成させるためであ
る。The sintered density of the sintered body is 6.0 to 6.5 g/a3, preferably 6.39/α3. This is to provide the sintered body with airtightness necessary for a compressor blade, and also to generate a predetermined amount of iron-based oxide, which will be described later, in the sintered body.
焼結体には体積比で１５〜３０％、好ましくは２０％の
鉄系酸化物を保有させる。これは焼結体の空孔を鉄系酸
化物で封止し、含油処理により焼結体の空孔に十分な油
を保有させるためである。The sintered body contains iron-based oxide in a volume ratio of 15 to 30%, preferably 20%. This is because the pores of the sintered body are sealed with iron-based oxide and the pores of the sintered body are made to retain sufficient oil through oil impregnation treatment.
焼結体には含油処理を施している。この含油処理により
焼結体の空孔に充分油を保有させ、その表面に高い保油
性をもたせることができる。The sintered body is subjected to oil impregnation treatment. This oil impregnation treatment allows the pores of the sintered body to retain sufficient oil, thereby imparting high oil retention to its surface.
本発明のブレードは下記の様にして製造する。The blade of the present invention is manufactured as follows.
高速度鋼またはダイス鋼の組成をもつ材料粉末により圧
粉体を加圧成形し、その後脱脂工程を経て圧粉体を焼結
し、次いで得られた焼結体に水蒸気処理（封孔処理）を
行い、さらに焼結体に含油処理を行なう。A green compact is pressure-formed using material powder having the composition of high-speed steel or die steel, and then the green compact is sintered through a degreasing process, and then the resulting sintered body is subjected to steam treatment (sealing treatment). The sintered body is then subjected to oil impregnation treatment.
このように構成した本発明のロータリコンプレッサのブ
レードは、高速度鋼またはダイス鋼からなるものである
から優れた耐摩耗性を有し、また焼結体で形成して含油
処理を行なうことにより、シリンダと摺接する表面に保
油性つまりすぐれた潤滑性を有している。The blades of the rotary compressor of the present invention constructed in this way have excellent wear resistance because they are made of high-speed steel or die steel, and are formed of a sintered body and subjected to oil impregnation treatment. The surface that makes sliding contact with the cylinder has oil-retaining properties, that is, excellent lubricity.
図面で示すロータリコンプレッサについて説明すると、
ブレード５に本発明を適用する。そうするとブーレド５
の先端部は、回転するロータ３の周面との摺接による摩
耗を充分抑制することができる。また、ブレード５が動
作する時に、ブレード５の表面がシリンダ１の孔４の周
面に摺接するが、ブレード５を形成する焼結体の空孔に
保有された油の潤滑作用によりブレード５とシリンダ１
の摺接面間を潤滑状態とすることができる。通常、シリ
ンダ１は鋳鉄で形成されている。このため、ロータリコ
ンプレッサの運転の初期において、シリンダ１に対して
焼付きやかじりなどを生じることなく良好に摺接して動
作することができる。To explain the rotary compressor shown in the drawing,
The present invention is applied to the blade 5. Then Buredo 5
The tip of the rotor 3 can sufficiently suppress wear caused by sliding contact with the circumferential surface of the rotating rotor 3. Furthermore, when the blade 5 operates, the surface of the blade 5 comes into sliding contact with the circumferential surface of the hole 4 of the cylinder 1, but due to the lubricating action of the oil held in the pores of the sintered body forming the blade 5, cylinder 1
It is possible to keep the sliding surfaces in a lubricated state. Usually, the cylinder 1 is made of cast iron. Therefore, at the initial stage of operation of the rotary compressor, the rotary compressor can operate in good sliding contact with the cylinder 1 without seizure or galling.
（実施例）
本発明例二 重量比でカーボン（Ｃ）１．０〜１．２％
、クロム（Ｃｒ）３．８〜４．５％、タングステン（Ｗ
）５．５〜６．８％、バナジウム（Ｖ）１．８〜２．２
％、モリブデン（Ｍｏ）４．５〜５．５％、コバルト（
Ｃｏ）０．２〜０．６％、残部実質的に鉄（Ｆｅ）から
なる混合粉末成形圧６トン／ＣＩｉで加圧して圧粉体を
成形し、そののち脱脂工程をへて圧粉体を非酸化雰囲気
中にて、温度１１７０’Ｃ１６０分の条件で焼結し、焼
結密度６．４ｇ／α３の焼結体を得た。この焼結体に温
度６００℃、３時間の条件で水蒸気処理を行い、さらに
焼結体に温度８０℃、３時間の条件で含油処理を行いブ
レードを製作した。このブレードをロータリコンプレッ
サに組込み、コンプレッサを回転数２１０セで５０００
時間運転した結果、ブレードは焼付きなどを生じること
なく良好に動作できた。(Example) Invention Example 2 Carbon (C) 1.0 to 1.2% by weight
, chromium (Cr) 3.8-4.5%, tungsten (W
) 5.5-6.8%, vanadium (V) 1.8-2.2
%, molybdenum (Mo) 4.5-5.5%, cobalt (
A mixed powder consisting of 0.2 to 0.6% Co) and the remainder substantially iron (Fe) is pressurized at a compacting pressure of 6 tons/CIi to form a compact, and then undergoes a degreasing process to form a compact. was sintered in a non-oxidizing atmosphere at a temperature of 1170'C for 160 minutes to obtain a sintered body with a sintered density of 6.4 g/α3. This sintered body was subjected to steam treatment at a temperature of 600° C. for 3 hours, and the sintered body was further subjected to oil impregnation treatment at a temperature of 80° C. for 3 hours to produce a blade. This blade is installed in a rotary compressor, and the compressor is rotated at 5000 rpm at 210 rpm.
After several hours of operation, the blades were able to operate well without any seizures.
比較例： 高速度鋼の溶製材料からなるブレードをロー
タリコンプレッサに組込みコンプレッサを同一条件で運
転した結果、ブレードは５０００時間を経過する前に焼
付きを生じて動作できなくなった。Comparative Example: As a result of incorporating blades made of high-speed steel into a rotary compressor and operating the compressor under the same conditions, the blades seized and became inoperable before 5000 hours had passed.
以上説明したように本発明のロータリコンプレッサのブ
レードによれば、優れた耐摩耗性と初期潤滑性を併せも
ち、ロータリコンプレッサの安定した運転に寄与できる
。。As explained above, the rotary compressor blade of the present invention has both excellent wear resistance and initial lubricity, and can contribute to stable operation of the rotary compressor. .
図面はロータリコンプレッサの概略的構成を示す断面図
である
１・・・シリンダ、３・・・ロータ、５・・・ブレード
。The drawing is a sectional view showing a schematic configuration of a rotary compressor. 1...Cylinder, 3...Rotor, 5...Blades.
Claims (2)
速度鋼またはダイス鋼の焼結体で形成され、且つ含油処
理を施してなることを特徴とするロータリコンプレッサ
のブレード。(1) A blade for a rotary compressor, characterized in that it is formed of a sintered body of high-speed steel or die steel containing 15 to 30% by volume of iron-based oxides, and is subjected to oil impregnation treatment.
３である特許請求の範囲１項記載のロータリコンプレッ
サのブレード(2) The sintered density of the sintered body is 6.0 to 6.5 g/cm^
3. The rotary compressor blade according to claim 1, which is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23177786A JPS6388294A (en) | 1986-09-30 | 1986-09-30 | Blade of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23177786A JPS6388294A (en) | 1986-09-30 | 1986-09-30 | Blade of rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6388294A true JPS6388294A (en) | 1988-04-19 |
Family
ID=16928871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23177786A Pending JPS6388294A (en) | 1986-09-30 | 1986-09-30 | Blade of rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6388294A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02102392A (en) * | 1988-10-07 | 1990-04-13 | Matsushita Electric Ind Co Ltd | Rotary type enclosed compressor |
| US5055016A (en) * | 1989-05-19 | 1991-10-08 | Atsugi Unisia Corporation | Alloy material to reduce wear used in a vane type rotary compressor |
| CN105275814A (en) * | 2015-08-04 | 2016-01-27 | 广东美芝制冷设备有限公司 | Multi-cylinder rotation type compressor |
| US11555404B2 (en) * | 2019-06-26 | 2023-01-17 | Lg Electronics Inc. | Rotary compressor having a combined vane-roller structure including a ferrosoferric oxide film on a surface of a coupling groove of the roller |
-
1986
- 1986-09-30 JP JP23177786A patent/JPS6388294A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02102392A (en) * | 1988-10-07 | 1990-04-13 | Matsushita Electric Ind Co Ltd | Rotary type enclosed compressor |
| US5055016A (en) * | 1989-05-19 | 1991-10-08 | Atsugi Unisia Corporation | Alloy material to reduce wear used in a vane type rotary compressor |
| CN105275814A (en) * | 2015-08-04 | 2016-01-27 | 广东美芝制冷设备有限公司 | Multi-cylinder rotation type compressor |
| US11555404B2 (en) * | 2019-06-26 | 2023-01-17 | Lg Electronics Inc. | Rotary compressor having a combined vane-roller structure including a ferrosoferric oxide film on a surface of a coupling groove of the roller |
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