JPH0830473B2 - Vane holding device for rotary compressor - Google Patents
Vane holding device for rotary compressorInfo
- Publication number
- JPH0830473B2 JPH0830473B2 JP63252579A JP25257988A JPH0830473B2 JP H0830473 B2 JPH0830473 B2 JP H0830473B2 JP 63252579 A JP63252579 A JP 63252579A JP 25257988 A JP25257988 A JP 25257988A JP H0830473 B2 JPH0830473 B2 JP H0830473B2
- Authority
- JP
- Japan
- Prior art keywords
- vane
- cylinder
- spring
- rotor
- rotary compressor
- 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 - Fee Related
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
- 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
- F01C21/0818—Vane tracking; control therefor
- F01C21/0827—Vane tracking; control therefor by mechanical means
- F01C21/0845—Vane tracking; control therefor by mechanical means comprising elastic means, e.g. springs
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〕 この発明は,回転式圧縮機にかかわり,特にベーン保
持装置の改良に関するものである。Description: TECHNICAL FIELD The present invention relates to a rotary compressor, and more particularly to improvement of a vane holding device.
第6図は例えば実開昭59−188993号公報に示された従
来の回転式圧縮機の要部を示す断面図であり,図におい
て,(1)はシリンダ,(2)は偏心回転軸,(3)は
偏心回転軸に嵌合されたロータ,(4)はロータ(3)
の外周面に常時圧接して前記シリンダ(1)を低圧室と
高圧室とに区分するベーンであり,(5)はベーン
(4)をロータ(3)に圧接させるためのベーンスプリ
ングであり,(6)はシリンダ(1)のベーン(4)を
収納するスリットの背部にベーンスプリング(5)を収
納するために設けられたスプリング穴である。FIG. 6 is a sectional view showing a main part of a conventional rotary compressor disclosed in, for example, Japanese Utility Model Laid-Open No. 59-188993, in which (1) is a cylinder, (2) is an eccentric rotary shaft, and FIG. (3) is a rotor fitted to an eccentric rotation shaft, (4) is a rotor (3)
Is a vane that constantly presses the outer peripheral surface of the cylinder to divide the cylinder (1) into a low pressure chamber and a high pressure chamber, and (5) is a vane spring for pressing the vane (4) to the rotor (3). Reference numeral (6) is a spring hole provided at the back of the slit for storing the vane (4) of the cylinder (1) for storing the vane spring (5).
次に動作について説明する。シリンダ(1)と,フレ
ーム及びシリンダヘッド(共に図示せず)とにより形成
された空間内を偏心回転軸(2)の回転によりロータ
(3)が転動し,このロータ(3)の外周面に常時圧接
するベーン(4)が前記シリンダ(1)空間を低圧室と
高圧室に区分することにより,圧接動作が行なわれる回
転式圧縮機において,シリンダ(1)のベーン収納スリ
ットの背部に設けられたスプリング穴(6)にスプリン
グ(5)を収納し,運転中のシリンダ内圧力に打ち勝つ
スプリング力をこのスプリング(5)に与えることによ
り,正常な圧縮動作を行うことができる。Next, the operation will be described. Rotation of the eccentric rotation shaft (2) causes the rotor (3) to roll in the space formed by the cylinder (1), the frame and the cylinder head (both not shown), and the outer peripheral surface of the rotor (3) In the rotary compressor in which the vane (4) constantly in pressure contact with the cylinder (1) divides the space of the cylinder (1) into a low pressure chamber and a high pressure chamber, the vane (4) is provided at the back of the vane storage slit of the cylinder (1). By storing the spring (5) in the provided spring hole (6) and applying a spring force that overcomes the in-cylinder pressure during operation to this spring (5), a normal compression operation can be performed.
従来の回転式圧縮機は以上のように構成されているの
で,シリンダ(1)の例えばベーンスプリング(5)の
スプリング力を大きくする必要がある場合,スプリング
(5)の形状は必然的に大形となるので,シリンダ
(1)の背部に設けられたスプリング穴(6)を大きく
する必要があり,シリンダ(1)の剛性が低下するとい
う課題があった。Since the conventional rotary compressor is configured as described above, when it is necessary to increase the spring force of the vane spring (5) of the cylinder (1), the shape of the spring (5) is inevitably large. Since it is shaped, the spring hole (6) provided in the back part of the cylinder (1) needs to be large, and there is a problem that the rigidity of the cylinder (1) is reduced.
この発明は,上記のような課題を解消するためになさ
れたもので,ベーンスプリングのスプリング力を大きく
する場合,シリンダの剛性を低下させることのない,信
頼性の優れた回転式圧縮機のベーン保持装置を得ること
を目的とする。The present invention has been made to solve the above problems, and when increasing the spring force of a vane spring, the vane of a rotary compressor having excellent reliability without lowering the rigidity of the cylinder is provided. The purpose is to obtain a holding device.
この発明に係る回転式圧縮機のベーン保持装置は、シ
リンダと、偏心回転軸と、この偏心回転軸に嵌合された
ロータと、このロータの外周面に常時圧接して前記シリ
ンダを低圧室と高圧室とに区分するベーンと、このベー
ンの背部に設けられた溝とを有する回転式圧縮機におい
て、 のベーン保持具を設け、このベーン保持具の一端が前記
シリンダの上部外側面に当接保持され、かつ他端が前記
一端の対称位置のシリンダ上部外側面に沿って配置され
た単一のスプリングに係止され、このベーン保持具の中
央部が、前記シリンダに形成された前記溝内を往復摺動
する前記ベーンの背部と接し、前記ベーンを前記シリン
ダ内の前記ロータに常時圧接する方向に前記単一のスプ
リングにより付勢されることを特徴とするものである。A vane holding device for a rotary compressor according to the present invention includes a cylinder, an eccentric rotation shaft, a rotor fitted to the eccentric rotation shaft, and a cylinder which is constantly in pressure contact with an outer peripheral surface of the rotor to form the cylinder as a low pressure chamber. In a rotary compressor having a vane that is divided into a high-pressure chamber and a groove provided at the back of the vane, A vane holder, one end of which is held in contact with the outer surface of the upper portion of the cylinder, and the other end of which is arranged along the outer surface of the upper portion of the cylinder at a symmetrical position of the one end. The center of the vane holder is in contact with the back of the vane that reciprocally slides in the groove formed in the cylinder, and the vane is constantly pressed against the rotor in the cylinder. It is characterized in that it is biased by the single spring.
この発明における回転式圧縮機のベーン保持装置は,
ベーン保持具がスプリングのスプリング力を増幅するの
で小さなスプリング力で大きなベーン付勢が得られる。The vane holding device of the rotary compressor according to the present invention is
Since the vane holder amplifies the spring force of the spring, a large spring force can be obtained with a small spring force.
第1図はこの発明の一実施例を示す断面図,第2図は
同正面図であり,(1)〜(6)は上記従来例と全く同
一のものである。(7)はベーン(4)の背部に設けら
れた溝,(8)はこの溝(7)に収納されるベーン保持
具,(9)はシリンダ(1)に固着され上記ベーン保持
具(8)の一端が当接する取付金具,(10)は上記ベー
ン保持具(8)の他端にその一端が係止され他端がシリ
ンダ(1)の外周部に係止されるベーンスプリングであ
る。上記のように構成された回転式圧縮機においては,
シリンダ(1)としてフレーム及びシリンダヘッド(図
示せず)とにより形成された空間内に,偏心回転軸
(2)に摺動自在に嵌合されたロータ(3)と,このロ
ータ(3)の外周面に常時圧接し,シリンダ(1)に設
けたスリットに往復運動可能なように収納されたベーン
(4)を配置している。偏心回転軸(2)が回転すると
ロータ(3)が転動し,このロータ(3)とベーン
(4)とシリンダ(1)壁により形成される低圧室と高
圧室は回転に伴いその容積を変化させスムーズな圧縮動
作をくり返す。この際ベーンの背部に設けたベーン保持
具(8)は,一端が取付金具(9)に当接し他端がベー
ンスプリング(10)により係止される。そして己字状の
ベーン保持具(8)の中央がベーン(4)の背部を押
し,ロータ(3)にベーン(4)を圧接させる。FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a front view thereof, and (1) to (6) are exactly the same as the above-mentioned conventional example. (7) is a groove provided at the back of the vane (4), (8) is a vane holder accommodated in the groove (7), (9) is fixed to the cylinder (1), and the vane holder (8) is fixed. ) Is a vane spring whose one end is locked to the other end of the vane holder (8) and the other end is locked to the outer peripheral portion of the cylinder (1). In the rotary compressor configured as described above,
A rotor (3) slidably fitted to an eccentric rotation shaft (2) in a space formed by a frame and a cylinder head (not shown) as a cylinder (1), and the rotor (3) A vane (4), which is constantly in pressure contact with the outer peripheral surface and is housed in a slit provided in the cylinder (1) so as to be able to reciprocate, is arranged. When the eccentric rotation shaft (2) rotates, the rotor (3) rolls, and the low-pressure chamber and the high-pressure chamber formed by the rotor (3), the vane (4) and the cylinder (1) wall change in volume with rotation. Change and repeat smooth compression operation. At this time, one end of the vane holder (8) provided at the back of the vane abuts on the fitting (9) and the other end is locked by the vane spring (10). Then, the center of the self-shaped vane holder (8) pushes the back of the vane (4), and the vane (4) is pressed against the rotor (3).
したがって,例えば己字状の中央をベーン(4)の背
部と接し,この接する部分から対称な位置に,ベーン保
持具(8)が取付金具(9)に当接する単純支持点と,
ベーン保持具(8)がベーンスプリング(10)に係止さ
れる弾性支持点とを設けたことになり,従来例のベーン
スプリング力に比べて半分のスプリング力で従来と同等
のスプリング性能を発揮することができ,しかもシリン
ダの剛性低下,ベーンスプリングの摩耗等の問題も生じ
ない。Therefore, for example, the center of the self-shape is brought into contact with the back of the vane (4), and a simple support point at which the vane holder (8) comes into contact with the mounting bracket (9) at a symmetrical position from this contacting portion,
The vane holder (8) is provided with an elastic support point that is locked to the vane spring (10), and exhibits the same spring performance as the conventional vane spring force with half the spring force. In addition, the rigidity of the cylinder is not deteriorated and the vane spring is not worn.
なお,上記実施例ではスプリング(10)がシリンダの
外周壁に固定された例を示したが,取付金具(9)にベ
ーン保持具(8)を単純支持する機能とベーンスプリン
グ(10)を係止する機能の両方を持たせてもよい。Although the spring (10) is fixed to the outer peripheral wall of the cylinder in the above embodiment, the function of simply supporting the vane holder (8) on the mounting bracket (9) and the vane spring (10) are related. You may have both the function to stop.
第3図は取付金具にベーン保持具を単純支持する機能
とベーンスプリングを係止する機能の両方を持たせた場
合の他の実施例を示す断面図,第4図は同正面図,第5
図は同要部斜視図であり,図において,(11)は取付金
具,(12)はこの取付金具(11)のほぼ中央部に設けら
れてこの取付金具(11)を例えばシリンダ(1)に取り
付ける取付穴,(13)は取付金具(11)の一端に設けら
れ,ベーン保持具(8)が当接するベーン保持具当接
部,(14)は取付金具(11)の他端に設けられベーンス
プリング(10)を係止するスプリング係止部である。第
3図〜第5図によれば取付金具(11)はベーン保持具当
接部(13)とスプリング係止部(14)が一体に構成され
ているから,取付穴(12)により例えばシリンダ(1)
に取付金具(11)を螺合等により取り付ける際にずれが
生じても,ベーン(4)をロータ(3)に圧接する圧接
力は変わらないという効果を奏する。FIG. 3 is a cross-sectional view showing another embodiment in which the mounting bracket has both the function of simply supporting the vane holder and the function of locking the vane spring, and FIG. 4 is the front view and FIG.
The figure is a perspective view of the same main part. In the figure, (11) is a mounting bracket, and (12) is provided almost at the center of this mounting bracket (11). A mounting hole, (13), is provided at one end of the mounting bracket (11), and a vane holder contact portion with which the vane holder (8) abuts, (14) is provided at the other end of the mounting bracket (11). The spring lock portion locks the vane spring (10). According to FIGS. 3 to 5, the mounting bracket (11) has the vane holder abutment portion (13) and the spring locking portion (14) integrated with each other. (1)
Even if the mounting bracket (11) is displaced due to screwing or the like, the press contact force for pressing the vane (4) to the rotor (3) does not change.
また通常ベーン保持具(8)は熱処理され硬度が高い
のでこのベーン保持具(8)が当接摺動する取付金具
(9)(11)のベーン当接部は無潤滑故,摩耗すること
もあるが,取付金具(9)(11)をベーン保持具(8)
の硬度よりもやや低い硬度になるように熱処理すること
により,取付金具(9)(11)のベーン当接部の摩耗を
抑制することも可能である。Further, since the vane holder (8) is usually heat-treated and has a high hardness, the vane contact portions of the fittings (9) and (11) with which the vane holder (8) abuts and slides are not lubricated and may be worn. Install the mounting brackets (9) (11) into the vane holder (8)
It is also possible to suppress the wear of the vane abutting portions of the mounting brackets (9) and (11) by heat-treating so as to have a hardness slightly lower than the hardness of.
この発明によれば,回転式圧縮機のシリンダの適宜位
置に一端が当接保持され,他端がスプリングを介して前
記シリンダの適宜位置に係止され,中央部が前記シリン
ダに形成されたスリット内を往復摺動するベーンを前記
シリンダ内のロータに常時圧接する方向に前記スプリン
グにより付勢するベーン保持具を備えた構成にしたの
で、ベーン保持具がスプリングの力を増幅するので小さ
なスプリング力で大きなベーン付勢力が得られるから、
小さなスプリング力のものを使えばよく、スプリングが
小型化されるので、それだけで圧縮機が小型・軽量化さ
れ、組立性もよくなり、ベーンがシリンダに内蔵されて
いるのでシリンダの剛性が損なわず、スプリングをシリ
ンダの上部外側面に沿って配置したのでスペースの有効
利用ができるという格別の効果を奏するAccording to this invention, one end of the cylinder of the rotary compressor is held in contact with the cylinder at an appropriate position, the other end of the cylinder is locked at an appropriate position of the cylinder through a spring, and the central portion of the slit is formed in the cylinder. Since the vane holder that biases the vane that slides and reciprocates inside the cylinder in the direction of constantly being pressed against the rotor in the cylinder is provided by the spring, the vane holder amplifies the force of the spring so that a small spring force is applied. Because a big vane bias can be obtained with,
Since a spring with a small spring force can be used and the spring can be made smaller, the compressor can be made smaller and lighter and the assemblability can be improved, and since the vane is built in the cylinder, the rigidity of the cylinder is not impaired. Since the springs are arranged along the outer surface of the upper part of the cylinder, it is possible to effectively use the space.
第1図はこの発明の一実施例を示す断面図,第2図は同
正面図,第3図は他の実施例を示す断面図,第4図は同
正面図,第5図は同要部斜視図,第6図は従来の回転圧
縮機の断面図である。 図において,(1)はシリンダ,(2)は偏心回転軸,
(3)はロータ,(4)はベーン,(7)は溝,(8)
はベーン保持具,(9)は取付金具,(10)はベーンス
プリングである。 なお,各図中,同一符号は同一又は相当部分を示す。FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view showing another embodiment, FIG. 4 is the same front view, and FIG. FIG. 6 is a sectional view of a conventional rotary compressor. In the figure, (1) is a cylinder, (2) is an eccentric rotary shaft,
(3) is a rotor, (4) is a vane, (7) is a groove, (8)
Is a vane holder, (9) is a fitting, and (10) is a vane spring. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 隆史 静岡県静岡市小鹿3丁目18番1号 三菱電 機株式会社静岡製作所内 (72)発明者 前山 英明 静岡県静岡市小鹿3丁目18番1号 三菱電 機株式会社静岡製作所内 (72)発明者 石嶋 孝次 静岡県静岡市小鹿3丁目18番1号 三菱電 機株式会社静岡製作所内 (56)参考文献 実開 昭58−118286(JP,U) 特公 昭53−123(JP,B2) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takashi Yamamoto, Inventor Takashi Yamamoto, 3-18-1, Oka, Shizuoka-shi, Shizuoka Mitsubishi Electric Corporation Shizuoka Plant (72) Inventor Hideaki Maeyama 3--18-1, Oga, Shizuoka-shi No. Mitsubishi Electric Co., Ltd. Shizuoka Works (72) Inventor, Koji Ishijima 3-18-1, Oga, Shizuoka City, Shizuoka Prefecture Mitsubishi Electric Co., Ltd. Shizuoka Works (56) References: 58-118286 (JP, U) ) Japanese Patent Publication Sho 53-123 (JP, B2)
Claims (1)
軸に嵌合されたロータと、このロータの外周面に常時圧
接して前記シリンダを低圧室と高圧室とに区分するベー
ンと、このベーンの背部に設けられた溝とを有する回転
式圧縮機において、 状のベーン保持具を設け、このベーン保持具の一端が前
記シリンダの上部外側面に当接保持され、かつ他端が前
記一端の対称位置のシリンダ上部外側面に沿って配置さ
れた単一のスプリングに係止され、このベーン保持具の
中央部が、前記シリンダに形成された前記溝内を往復摺
動する前記ベーンの背部と接し、前記ベーンを前記シリ
ンダ内の前記ロータに常時圧接する方向に前記単一のス
プリングにより付勢されることを特徴とする回転式圧縮
機のベーン保持装置。1. A cylinder, an eccentric rotary shaft, a rotor fitted to the eccentric rotary shaft, and a vane which is in constant pressure contact with the outer peripheral surface of the rotor to divide the cylinder into a low pressure chamber and a high pressure chamber. In a rotary compressor having a groove provided on the back of this vane, A vane holder is provided, one end of which is held in contact with the upper outer surface of the cylinder, and the other end of which is arranged along the outer surface of the cylinder at a symmetrical position of the one end. A direction in which the central portion of the vane holder, which is locked by a spring, contacts the back portion of the vane that reciprocally slides in the groove formed in the cylinder, and the vane is constantly in pressure contact with the rotor in the cylinder. A vane holding device for a rotary compressor, wherein the vane holding device is urged by the single spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63252579A JPH0830473B2 (en) | 1988-03-24 | 1988-10-06 | Vane holding device for rotary compressor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-70119 | 1988-03-24 | ||
| JP7011988 | 1988-03-24 | ||
| JP63252579A JPH0830473B2 (en) | 1988-03-24 | 1988-10-06 | Vane holding device for rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01315688A JPH01315688A (en) | 1989-12-20 |
| JPH0830473B2 true JPH0830473B2 (en) | 1996-03-27 |
Family
ID=26411275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63252579A Expired - Fee Related JPH0830473B2 (en) | 1988-03-24 | 1988-10-06 | Vane holding device for rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0830473B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123A (en) * | 1976-06-23 | 1978-01-05 | Canon Inc | Automatic exposure control device for camera which can flash-photograph |
| JPS58118286U (en) * | 1982-02-05 | 1983-08-12 | 松下冷機株式会社 | rotary compressor |
-
1988
- 1988-10-06 JP JP63252579A patent/JPH0830473B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01315688A (en) | 1989-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |