JPH0533298B2 - - Google Patents
Info
- Publication number
- JPH0533298B2 JPH0533298B2 JP16901684A JP16901684A JPH0533298B2 JP H0533298 B2 JPH0533298 B2 JP H0533298B2 JP 16901684 A JP16901684 A JP 16901684A JP 16901684 A JP16901684 A JP 16901684A JP H0533298 B2 JPH0533298 B2 JP H0533298B2
- Authority
- JP
- Japan
- Prior art keywords
- vane
- rotor
- cam ring
- vanes
- rotating body
- 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.)
- Expired - Lifetime
Links
- 239000002245 particle Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 6
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 229910000676 Si alloy Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000011362 coarse particle Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 231100000241 scar Toxicity 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- NHWNVPNZGGXQQV-UHFFFAOYSA-J [Si+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O Chemical compound [Si+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O NHWNVPNZGGXQQV-UHFFFAOYSA-J 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はベーン型回転圧縮機やベーン型ポンプ
に用いられるベーンに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vane used in a vane-type rotary compressor or a vane-type pump.
（従来技術）
ベーンを備えた回転機、例えばベーン型回転圧
縮機は、シヤフトに軸着されたロータ（回転体）
がカムリング内に回転可能に収納され、このロー
タ内には、中圧の潤滑油が充填される複数の背圧
通路がその軸方向に、また底部が各背圧通路にそ
れぞれ連通しロータ外周面で開口する放射方向に
延在するスリツトが複数個設けられており、この
各スリツト内にベーンが摺動自在に収納されてい
る。これらの各ベーンは、背圧通路内に供給され
る潤滑油により放射外方にベーン背圧が加えら
れ、ロータの回転に伴つてベーンの先端がカムリ
ングの内周面に摺接しながら移動し、カムリング
とロータとの間に隣り合うベーンにより拡縮する
ポンプ室を画成する構成となつている。(Prior art) A rotating machine equipped with vanes, for example a vane type rotary compressor, is a rotor (rotating body) that is attached to a shaft.
is rotatably housed in the cam ring, and inside this rotor, there are multiple back pressure passages filled with medium pressure lubricating oil in the axial direction, and the bottom part communicates with each back pressure passage and connects to the outer peripheral surface of the rotor. A plurality of slits extending in the radial direction are provided, and a vane is slidably housed in each of the slits. Vane back pressure is applied radially outward to each of these vanes by lubricating oil supplied into the back pressure passage, and as the rotor rotates, the tips of the vanes move while sliding in contact with the inner peripheral surface of the cam ring. A pump chamber that expands and contracts is defined by adjacent vanes between the cam ring and the rotor.
（発明が解決しようとする問題点）
ところが、上記従来のベーンにおいては、カム
リングが鋳鉄により形成される一方、ベーンがシ
リコンSiを10〜20％含み粒径が１〜100μｍの初晶
シリコンからなるアルミニユームシリコンAl−
Si合金により形成されていたため、耐摩耗性や耐
焼付性に欠ける問題点があつた。つまり、アルミ
ニユームシリコンAl−Si合金の製造上、初晶シ
リコンには問題とならぬ小さい粒子から摩耗の要
因となる粗い粒子まで含まれており、粒子の大き
さが不均一で粗い粒子自体の硬度が低いため、カ
ムリングの内周面を摺動するベーン先端の粗い粒
子が剥離し、これにより摩耗粉が発生してベーン
先端やスリツトと摺接するベーンの背面の摩耗、
焼付きを促進し、ベーンの耐久性を低下させると
いう欠点があつた。(Problem to be Solved by the Invention) However, in the conventional vane described above, the cam ring is made of cast iron, while the vane is made of primary crystal silicon containing 10 to 20% silicon and having a particle size of 1 to 100 μm. Aluminum Silicon Al−
Since it was made of a Si alloy, it had the problem of lacking wear resistance and seizure resistance. In other words, in the production of aluminum silicon Al-Si alloy, primary silicon contains everything from small particles that are not a problem to coarse particles that can cause wear. Due to the low hardness, coarse particles at the tips of the vanes that slide on the inner circumferential surface of the cam ring peel off, which generates abrasion powder that causes wear and tear on the back of the vanes that slide against the vane tips and slits.
This had the disadvantage of promoting seizure and reducing the durability of the vane.
（発明の目的）
そこで、本発明は粒径を小さく均一にして粒子
の硬度を高めることにより、粒子の剥離を抑制
し、その結果耐摩耗性や耐焼付性及び耐久性を向
上したベーンを提供することを目的とする。(Purpose of the Invention) Therefore, the present invention provides a vane that suppresses peeling of particles by reducing the particle size and making them uniform and increasing the hardness of the particles, thereby improving wear resistance, seizure resistance, and durability. The purpose is to
（問題点の解決手段）
本発明のベーンは、上記問題点を解決するため
に、粒径が５〜50μｍのセラミツクス粉体を２〜
７重量％混入したアルミニユームシリコン合金に
より形成したものである。(Means for solving the problem) In order to solve the above problem, the vane of the present invention is made of ceramic powder having a particle size of 5 to 50 μm.
It is made of an aluminum-silicon alloy mixed with 7% by weight.
（実施例）
以下に本発明の一実施例について説明する。な
お、本実施例においては、ベーン型回転圧縮機に
用いられるベーンに適用した場合について説明す
る。(Example) An example of the present invention will be described below. In this example, a case where the present invention is applied to a vane used in a vane-type rotary compressor will be described.
ベーン型回転圧縮機は、第１図に示すように、
シヤフト１にロータ（回転体）２が軸着され、こ
のロータ２がカムリング３内に回転可能に収納さ
れている。このロータ２内には、複数の背圧通路
４がその軸方向に形成され、この背圧通路４に底
部がそれぞれ連通する一方ロータ外周面で開口す
るスリツト５が放射方向に複数個設けられてい
る。また、これらの各スリツト５内にはベーン６
が摺動自在に収納され、これらの各ベーン６が背
圧通路４内に供給される中圧の潤滑油により放射
外方にベーン背圧が加えられている。したがつ
て、ロータ２の回転に伴いベーン６先端がカムリ
ング３の内周面に摺接しながら移動し、カムリン
グ３とロータ２との間に隣接するベーン６により
拡縮するポンプ室７が画成される。 The vane type rotary compressor, as shown in Figure 1,
A rotor (rotating body) 2 is pivotally attached to a shaft 1, and this rotor 2 is rotatably housed in a cam ring 3. Inside the rotor 2, a plurality of back pressure passages 4 are formed in the axial direction, and a plurality of slits 5 are provided in the radial direction, the bottoms of which communicate with the back pressure passages 4, and which open on the outer peripheral surface of the rotor. There is. Further, a vane 6 is provided in each of these slits 5.
are slidably housed, and each of these vanes 6 is applied with vane back pressure radially outward by medium-pressure lubricating oil supplied into the back pressure passage 4. Therefore, as the rotor 2 rotates, the tip of the vane 6 moves while slidingly contacting the inner peripheral surface of the cam ring 3, and a pump chamber 7 that expands and contracts is defined by the adjacent vane 6 between the cam ring 3 and the rotor 2. Ru.
本実施例のベーンは、上記ロータ３およびカム
リング２を鋳鉄で形成する一方、上記ベーン６
を、５〜50μｍの均一な粒径を有し硬度がHv1000
〜2000のセラミツクス流体を２〜７重量％混入し
たアルミニユームシリコン合金で形成したもので
ある。セラミツクス粉体としては、本実施例で
は、シリコンカーバイトSiC或いはシリコンナイ
トライトSi3N4の粉体を５〜50μｍの均一な粒径
に形成したものを用い、これを２〜７重量％混入
してベーン６を形成したものである。 In the vane of this embodiment, the rotor 3 and cam ring 2 are made of cast iron, while the vane 6 is made of cast iron.
It has a uniform particle size of 5 to 50 μm and a hardness of Hv1000.
It is made of an aluminum-silicon alloy mixed with 2-7% by weight of ceramic fluid of ~2000. As the ceramic powder, in this example, silicon carbide SiC or silicon nitrite Si 3 N 4 powder formed into a uniform particle size of 5 to 50 μm was used, and 2 to 7% by weight of this was mixed. The vane 6 is formed by doing this.
このようなベーンにおいては、粒径が従来に比
べて小さくしかも均一に製造できるので、従来の
如き粗い粒子の混入がなく、また粒子のばらつき
が小さく粒子自体の硬度が増大するため、従来の
如き粗い粒子の剥離を防止できる。 In such vanes, the particle size is smaller and can be manufactured uniformly than in the past, so there is no mixing of coarse particles as in the past, and the variation in the particles is small and the hardness of the particles themselves increases, making them more difficult to manufacture than in the past. It can prevent coarse particles from peeling off.
本発明者らが行つた試験結果を第２図に示す。
第２図は、ピン・ドラム型摩耗試験によるベーン
先端のすべり速度に対する摩耗痕幅を示したもの
であり、曲線ａはベーンが従来のAl−Si合金で
形成された場合を、曲線ｂ，ｃは本発明のSiC添
加の場合、Si3N4添加の場合をそれぞれ示してい
る。なお、この条件として、潤滑油が80℃、その
供給量が300ml／min、ベーンの荷重が３Kg／mm2、
カムリングがねずみ鋳鉄性とする。このグラフか
らも理解できるように、ベーンを従来のAl−Si
合金で形成した場合に比べ、本発明のSiC添加、
Si3N4添加によりベーンを形成した場合には、摩
耗痕幅が大巾に小さくなり、しかもすべり速度に
対しても均一になる。このようにベーンの摩耗を
低減できるため、カムリング内周面に摺接するベ
ーン先端やロータのスリツトに摺接するベーン背
面の耐摩耗性、耐焼付性を向上させることがで
き、ベーンの耐久性を大巾に向上することがで
き、また、耐摩耗性の向上に伴い高温度となるベ
ーン先端の高温強度が増大するため、高負荷、高
速運転に適用することが可能となる。 FIG. 2 shows the test results conducted by the present inventors.
Figure 2 shows the wear scar width versus the sliding speed of the vane tip in a pin-drum type wear test.Curve a represents the case where the vane is made of a conventional Al-Si alloy, curves b and c shows the case of SiC addition and the case of Si 3 N 4 addition of the present invention, respectively. The conditions for this are: lubricating oil is 80℃, its supply rate is 300ml/min, the vane load is 3Kg/ mm2 ,
The cam ring is made of gray cast iron. As can be understood from this graph, the vanes are replaced with conventional Al-Si.
Compared to the case of forming an alloy, the SiC addition of the present invention,
When vanes are formed by adding Si 3 N 4 , the width of the wear scar becomes significantly smaller and becomes uniform with respect to the sliding speed. Since vane wear can be reduced in this way, it is possible to improve the wear resistance and seizure resistance of the vane tips that slide against the inner peripheral surface of the cam ring and the vane back that slides against the rotor slits, greatly increasing the durability of the vanes. Furthermore, as the wear resistance improves, the high-temperature strength of the vane tip, which is exposed to high temperatures, increases, making it possible to apply it to high-load, high-speed operations.
（発明の効果）
以上説明したように本発明によれば、ベーンを
形成する材質の粒子を微小で均一なものとしたの
で、粒子自体の硬度が高まり、摺動するベーンの
先端の耐摩耗性を向上することができる。その結
果、ベーン摺接部、例えばベーン先端や背面の耐
摩耗性、耐焼付性を向上することができ、ベーン
の耐久性を向上できるとともに高負荷、高速運転
に適用できるものとすることが可能となつた。(Effects of the Invention) As explained above, according to the present invention, the particles of the material forming the vanes are made fine and uniform, which increases the hardness of the particles themselves and improves the wear resistance of the tips of the sliding vanes. can be improved. As a result, it is possible to improve the wear resistance and seizure resistance of the vane sliding contact parts, such as the vane tip and back surface, which improves the durability of the vane and makes it applicable to high-load and high-speed operation. It became.
第１図および第２図は本発明の一実施例に係
り、第１図はベーン型回転圧縮機の横断面図、第
２図はベーンのすべり速度と摩耗痕幅との関係を
示すグラフである。
２……ロータ（回転体）、３……カムリング、
５……スリツト、６……ベーン。
Figures 1 and 2 relate to one embodiment of the present invention, with Figure 1 being a cross-sectional view of a vane-type rotary compressor, and Figure 2 being a graph showing the relationship between vane sliding speed and wear scar width. be. 2... Rotor (rotating body), 3... Cam ring,
5...slit, 6...vane.
Claims (1)
収納され、回転体の回転に伴いその先端が回転体
を収納するカムリングの内周面に沿つて摺動する
ベーンにおいて、粒径が５〜50μｍのセラミツク
ス粉体を２〜７重量％混入したアルミニユームシ
リコン合金により形成してなることを特徴とする
ベーン。1 A vane that is retractably stored in a slit formed in a rotating body, and whose tip slides along the inner peripheral surface of a cam ring that houses the rotating body as the rotating body rotates, has a particle size of 5 to 50 μm. A vane characterized in that it is formed of an aluminum silicon alloy mixed with 2 to 7% by weight of ceramic powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16901684A JPS6148556A (en) | 1984-08-13 | 1984-08-13 | Vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16901684A JPS6148556A (en) | 1984-08-13 | 1984-08-13 | Vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6148556A JPS6148556A (en) | 1986-03-10 |
| JPH0533298B2 true JPH0533298B2 (en) | 1993-05-19 |
Family
ID=15878766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16901684A Granted JPS6148556A (en) | 1984-08-13 | 1984-08-13 | Vane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6148556A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270973A (en) * | 1987-04-28 | 1988-11-08 | Kato Hatsujo Kaisha Ltd | Manufacture of high friction pulley |
| JP2987704B2 (en) * | 1988-07-15 | 1999-12-06 | 財団法人鉄道総合技術研究所 | Brake disc material for high-speed railway vehicles |
| US5403372A (en) * | 1991-06-28 | 1995-04-04 | Hitachi Metals, Ltd. | Vane material, vane, and method of producing vane |
| US5723800A (en) * | 1996-07-03 | 1998-03-03 | Nachi-Fujikoshi Corp. | Wear resistant cermet alloy vane for alternate flon |
-
1984
- 1984-08-13 JP JP16901684A patent/JPS6148556A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6148556A (en) | 1986-03-10 |
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