JPH07133773A - Scroll type fluid machine - Google Patents
Scroll type fluid machineInfo
- Publication number
- JPH07133773A JPH07133773A JP30218993A JP30218993A JPH07133773A JP H07133773 A JPH07133773 A JP H07133773A JP 30218993 A JP30218993 A JP 30218993A JP 30218993 A JP30218993 A JP 30218993A JP H07133773 A JPH07133773 A JP H07133773A
- Authority
- JP
- Japan
- Prior art keywords
- balance weight
- boss
- scroll
- oil supply
- peripheral surface
- 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.)
- Granted
Links
Classifications
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/807—Balance weight, counterweight
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は圧縮機、膨張機等として
用いられるスクロール型流体機械に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scroll type fluid machine used as a compressor, an expander or the like.
【０００２】[0002]
【従来の技術】本出願人は図３に示すスクロール型流体
機械について特願平３−292483号により特許出願中であ
る。2. Description of the Related Art The applicant has applied for a patent for a scroll type fluid machine shown in FIG. 3 by Japanese Patent Application No. 3-292483.
【０００３】図３において、１は固定スクロールで、端
板11とこの内面に立設されたうず巻状ラップ12よりな
り、端板11には吐出ポート13が設けられている。In FIG. 3, reference numeral 1 denotes a fixed scroll, which comprises an end plate 11 and a spiral wrap 12 erected on the inner surface of the end plate 11. The end plate 11 is provided with a discharge port 13.
【０００４】２は旋回スクロールで、端板21とこの内面
に立設されたうず巻状ラップ22と端板21の下面中央部に
突設されたボス23よりなり、このボス23内にはドライブ
ブッシュ54が旋回軸受73を介して回転自在に嵌装されて
いる。そして、このドライブブッシュ54に穿設された孔
55内には回転シヤフト５の上端に突設されて上方に伸び
る偏心駆動ピン53が嵌合されている。Reference numeral 2 is an orbiting scroll which comprises an end plate 21, a spiral wrap 22 standing upright on the inner surface of the end plate 21, and a boss 23 projecting from the center of the lower surface of the end plate 21. A bush 54 is rotatably fitted through a swivel bearing 73. Then, the holes formed in the drive bush 54
An eccentric drive pin 53, which is provided on the upper end of the rotary shaft 5 and extends upward, is fitted in the shaft 55.
【０００５】84は旋回スクロール２の公転旋回運動によ
る動的アンバランスを平衡させるためのバランスウェイ
トで、ボス４のまわりに回転自在に嵌装されている。こ
のバランスウェイト84の下面に突設されて下方に伸びる
突起82は回転シヤフト５の上端に設けられた上部フラン
ジ5aに穿設された穴85を貫通し、この突起82はその先端
に取り付けられたストッパ86により抜出を阻止されてい
る。Reference numeral 84 is a balance weight for balancing the dynamic unbalance due to the revolution orbiting motion of the orbiting scroll 2, which is rotatably fitted around the boss 4. A protrusion 82 protruding from the lower surface of the balance weight 84 and extending downward penetrates a hole 85 formed in the upper flange 5a provided at the upper end of the rotary shaft 5, and the protrusion 82 is attached to the tip thereof. The stopper 86 prevents the withdrawal.
【０００６】しかして、回転シヤフト５が回転すると、
この回転力は偏心駆動ピン53の直線部53a から穴55の直
線部55a を経てドライブブッシュ54に伝達され、更に、
旋回軸受73、ボス23を経て旋回スクロール２に伝達され
る。When the rotary shaft 5 rotates,
This rotational force is transmitted from the straight portion 53a of the eccentric drive pin 53 to the drive bush 54 via the straight portion 55a of the hole 55, and
It is transmitted to the orbiting scroll 2 via the orbiting bearing 73 and the boss 23.
【０００７】すると、旋回スクロール２は図示しない自
転阻止機構によってその自転を阻止された状態で回転シ
ヤフト５の軸芯Ｏ1 を中心としてこの軸芯Ｏ1 と偏心駆
動ピン53の軸芯Ｏ2 と距離ｒを半径とする円軌道上を公
転旋回運動する。[0007] Then, the orbiting scroll 2 and the axis O 2 of the shaft core O 1 and the eccentric drive pin 53 about the axis O 1 of rotation the shaft 5 in a state of being prevented its rotation by rotation inhibiting mechanism (not shown) It makes an orbital revolving motion on a circular orbit having a radius of the distance r.
【０００８】これと同時に回転シヤフト５の回転力はそ
の上部フランジ5aに穿設された穴85及び突起82を経てバ
ランスウェイト84に伝達され、バランスウェイト84はボ
ス23のまわりを自由に回転して、旋回スクロール２に作
用する遠心力と方向が反対の遠心力を発生して動的アン
バランスを軽減する。At the same time, the rotational force of the rotary shaft 5 is transmitted to the balance weight 84 through the hole 85 and the projection 82 formed in the upper flange 5a thereof, and the balance weight 84 is freely rotated around the boss 23. A centrifugal force having a direction opposite to that of the centrifugal force acting on the orbiting scroll 2 is generated to reduce the dynamic imbalance.
【０００９】旋回スクロール２が公転旋回運動すると、
ガスが固定スクロール１と旋回スクロール２とを噛み合
わせることによって限界された複数の密閉空間24内に吸
入される。そして、旋回スクロール２の公転旋回運動に
より密閉空間24の容積が減少するのに伴って圧縮されな
がら中央部に至り、ここから吐出ポート13を通って吐出
される。When the orbiting scroll 2 revolves orbitally,
Gas is sucked into the plurality of closed spaces 24 that are limited by the engagement of the fixed scroll 1 and the orbiting scroll 2. Then, as the volume of the closed space 24 decreases due to the orbiting motion of the orbiting scroll 2, the air reaches the central portion while being compressed and discharged from there through the discharge port 13.
【００１０】一方、旋回スクロール２の公転旋回運動
時、旋回スクロール２にはその偏心方向に向かう遠心力
と密閉空間24内の圧縮ガスによるガス力が作用し、これ
ら合成力によって旋回スクロール２はその旋回半径が増
加する方向に押推され、そのうず巻状ラップ22の側壁が
固定スクロール１のうず巻状ラップ12の側壁と密接して
密閉空間24内のガスの漏洩を阻止する。On the other hand, when the orbiting scroll 2 orbits, the orbiting scroll 2 is acted on by the centrifugal force in the direction of eccentricity and the gas force of the compressed gas in the closed space 24. The side wall of the spiral wrap 22 is pushed in the direction in which the orbiting radius increases, and comes close to the side wall of the spiral wrap 12 of the fixed scroll 1 to prevent the gas in the closed space 24 from leaking.
【００１１】そして、うず巻状ラップ12の側壁とうず巻
状ラップ22の側壁とが密接しながら摺動するのに伴って
旋回スクロール２の旋回半径が自動的に変化し、これに
伴って偏心駆動ピン53は孔55内をスライドし、かつ、ド
ライブブッシュ54及びバランスウェイト84の下端面は上
部フランジ5aの上端面と摺動する。Then, as the side wall of the spiral wrap 12 and the side wall of the spiral wrap 22 slide in close contact with each other, the orbiting radius of the orbiting scroll 2 automatically changes, and accordingly, the eccentricity changes. The drive pin 53 slides in the hole 55, and the lower end surfaces of the drive bush 54 and the balance weight 84 slide on the upper end surface of the upper flange 5a.
【００１２】これと同時に図示しない油ポンプによって
吸上げられた潤滑油が回転シヤフト５に穿設された給油
孔52を通って上昇し、偏心駆動ピン53の上端から噴出す
る。そして、旋回軸受73、偏心駆動ピン53と孔55との摺
動面、ボス33の外周面とバランスウェイト84の内周面と
の摺動面、上部フランジ5aの上端面とドライブブッシュ
54及びバランスウェイト84の下端面との摺動面、穴85と
突起82との摺動面等を潤滑する。At the same time, the lubricating oil sucked up by an oil pump (not shown) rises through the oil supply hole 52 formed in the rotary shaft 5 and is jetted from the upper end of the eccentric drive pin 53. The orbiting bearing 73, the sliding surface between the eccentric drive pin 53 and the hole 55, the sliding surface between the outer peripheral surface of the boss 33 and the inner peripheral surface of the balance weight 84, the upper end surface of the upper flange 5a and the drive bush.
Lubricate the sliding surface of the balance weight 84 and the lower end surface of the balance weight 84, the sliding surface of the hole 85 and the projection 82, and the like.
【００１３】[0013]
【発明が解決しようとする課題】上記従来のスクロール
型流体機械においては、ボス23の外周面とこれに摺接す
るバランスウェイト84の内周面に十分な潤滑油が供給さ
れないため、この摺動抵抗が大きくなるのみならずこれ
ら摺動面に異常摩耗が生じたり焼付きが発生するおそれ
があった。In the conventional scroll type fluid machine described above, since sufficient lubricating oil is not supplied to the outer peripheral surface of the boss 23 and the inner peripheral surface of the balance weight 84 which is in sliding contact with the boss 23, the sliding resistance is increased. Not only becomes large, but also abnormal wear or seizure may occur on these sliding surfaces.
【００１４】[0014]
【課題を解決するための手段】本発明は上記課題を解決
するために発明されたものであって、その要旨とすると
ころは、それぞれ端板の内面にうず巻状ラップを立設し
てなる固定スクロールと旋回スクロールとを互いに噛み
合わせ、上記旋回スクロールの端板の下面中央部に突設
されたボス内にドライブブッシュを回転自在に嵌装し、
このドライブブッシュに穿設された孔内に回転シヤフト
に突設された偏心駆動ピンを嵌合し、上記旋回スクロー
ルの公転旋回運動による動的アンバランスを平衡させる
ためのバランスウェイトを上記ボスのまわりに相対回転
自在に嵌装して上記回転シヤフトに連動連結し、上記偏
心駆動ピンの上端に開口する給油孔から噴出する潤滑油
によって上記ボスの外周面及びこれに摺接する上記バラ
ンスウェイトの内周面を潤滑するスクロール型流体機械
において、上記バランスウェイトの内周面にこのバラン
スウェイトの上面から下面に亘って上下に伸びる給油溝
を穿設したことを特徴とするスクロール型流体機械にあ
る。The present invention has been invented in order to solve the above-mentioned problems, and the gist of the invention is that spiral wraps are erected on the inner surface of each end plate. A fixed scroll and an orbiting scroll are meshed with each other, and a drive bush is rotatably fitted in a boss projecting in the lower surface central portion of the end plate of the orbiting scroll.
An eccentric drive pin protruding from the rotary shaft is fitted in the hole formed in the drive bush, and a balance weight for balancing the dynamic unbalance due to the orbiting motion of the orbiting scroll is provided around the boss. Is rotatably fitted relative to the boss and is interlockingly connected to the rotary shaft, and is lubricated by a lubricating oil ejected from an oil supply hole opened at the upper end of the eccentric drive pin and the inner periphery of the balance weight slidably contacting the outer peripheral surface of the boss. A scroll type fluid machine for lubricating a surface is characterized in that an oil supply groove extending vertically is bored from the upper surface to the lower surface of the balance weight on the inner peripheral surface of the balance weight.
【００１５】上記バランスウェイトの上面に内端が上記
給油溝に連通して放射方向に伸びる第２の給油溝を穿設
することができる。A second oil supply groove having an inner end communicating with the oil supply groove and extending in the radial direction may be formed on the upper surface of the balance weight.
【００１６】[0016]
【作用】本発明においては、給油孔から噴出した潤滑油
は給油溝を通ってボスの外周面とこれに摺接するバラン
スウェイトの内周面に円滑に供給される。In the present invention, the lubricating oil ejected from the oil supply hole is smoothly supplied through the oil supply groove to the outer peripheral surface of the boss and the inner peripheral surface of the balance weight which is in sliding contact with the boss.
【００１７】[0017]
【実施例】本発明の第１の実施例が図１に示されてい
る。バランスウェイト84の内周面84a にはバランスウェ
イト84の上面84b から下面84c に亘って上下に伸びる給
油溝87が穿設されている。他の構成は図３に示す従来の
ものと同様であり、対応する部材には同じ符号が付され
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A first embodiment of the invention is shown in FIG. The inner peripheral surface 84a of the balance weight 84 is provided with an oil supply groove 87 extending vertically from the upper surface 84b to the lower surface 84c of the balance weight 84. Other configurations are similar to those of the conventional one shown in FIG. 3, and corresponding members are designated by the same reference numerals.
【００１８】しかして、給油孔52の上端から噴出した潤
滑油は、矢印で示すように、孔55及び旋回軸受73を潤滑
した後、給油溝87に入り、ここからバランスウェイト84
の内周面84a とボス23の外周面との摺動面に供給され
て、これら摺動面を十分に潤滑する。Lubricating oil ejected from the upper end of the oil supply hole 52, after lubricating the hole 55 and the orbiting bearing 73, enters the oil supply groove 87, as shown by the arrow, from which the balance weight 84
It is supplied to the sliding surface between the inner peripheral surface 84a and the outer peripheral surface of the boss 23 to sufficiently lubricate these sliding surfaces.
【００１９】図２には本発明の第２の実施例が示されて
いる。この第２の実施例においては、バランスウェイト
84の上面84b に第２の給油溝88が穿設され、この給油溝
88はその内端が給油溝87に連通して放射方向に伸びてい
る。FIG. 2 shows a second embodiment of the present invention. In this second embodiment, the balance weight
A second oil supply groove 88 is formed on the upper surface 84b of the 84, and this oil supply groove is formed.
88 has its inner end communicating with the oil supply groove 87 and extends in the radial direction.
【００２０】この第２の実施例においては、潤滑油が給
油溝87を流過し易くなるとともにバランスウェイト84の
上面84b をも潤滑しうる。In the second embodiment, the lubricating oil can easily flow through the oil supply groove 87 and can also lubricate the upper surface 84b of the balance weight 84.
【００２１】なお、上記実施例においては、給油溝87を
突起82側に一本設けたが、任意の位置に設けることがで
き、また、複数本設けることもできる。In the above embodiment, one oil supply groove 87 is provided on the projection 82 side, but it may be provided at any position, or a plurality of oil supply grooves 87 may be provided.
【００２２】[0022]
【発明の効果】本発明においては、給油孔から噴出した
潤滑油は給油溝を通ってボスの外周面及びこれに摺接す
るバランスウェイトの内周面に円滑に供給されるので、
これら摺動面の異常摩耗や焼付きを防止することができ
る。According to the present invention, the lubricating oil ejected from the oil supply hole is smoothly supplied to the outer peripheral surface of the boss and the inner peripheral surface of the balance weight slidingly contacting the boss through the oil supply groove.
It is possible to prevent abnormal wear and seizure of these sliding surfaces.
【図１】本発明の第１の実施例を示し、 (A)は部分的縦
断面図、 (B)は (A)のＢ−Ｂ矢に沿う断面図である。1 shows a first embodiment of the present invention, (A) is a partial longitudinal sectional view, and (B) is a sectional view taken along the line BB of (A).
【図２】本発明の第２の実施例を示し、 (A)は部分的縦
断面図、 (B)は (A)のＢ−Ｂ矢に沿う断面図である。FIG. 2 shows a second embodiment of the present invention, (A) is a partial longitudinal sectional view, and (B) is a sectional view taken along the line BB of (A).
【図３】従来のスクロール型流体機械の１例を示し、
(A)は部分的縦断面図、 (B)は (A)のＢ−Ｂ矢に沿う断
面図である。FIG. 3 shows an example of a conventional scroll type fluid machine,
(A) is a partial longitudinal sectional view, and (B) is a sectional view taken along the line BB of (A).
１ 固定スクロール 11 端板 12 うず巻状ラップ ２ 旋回スクロール 21 端板 22 うず巻状ラップ 23 ボス 54 ドライブブッシュ 55 孔 ５ 回転シヤフト 53 偏心駆動ピン 84 バランスウェイト 84a 内周面 52 給油孔 87 給油溝 1 fixed scroll 11 end plate 12 spiral wrap 2 orbiting scroll 21 end plate 22 spiral wrap 23 boss 54 drive bush 55 hole 5 rotary shaft 53 eccentric drive pin 84 balance weight 84a inner surface 52 oil supply hole 87 oil supply groove
Claims (2)
立設してなる固定スクロールと旋回スクロールとを互い
に噛み合わせ、上記旋回スクロールの端板の下面中央部
に突設されたボス内にドライブブッシュを回転自在に嵌
装し、このドライブブッシュに穿設された孔内に回転シ
ヤフトに突設された偏心駆動ピンを嵌合し、上記旋回ス
クロールの公転旋回運動による動的アンバランスを平衡
させるためのバランスウェイトを上記ボスのまわりに相
対回転自在に嵌装して上記回転シヤフトに連動連結し、
上記偏心駆動ピンの上端に開口する給油孔から噴出する
潤滑油によって上記ボスの外周面及びこれに摺接する上
記バランスウェイトの内周面を潤滑するスクロール型流
体機械において、上記バランスウェイトの内周面にこの
バランスウェイトの上面から下面に亘って上下に伸びる
給油溝を穿設したことを特徴とするスクロール型流体機
械。1. A fixed scroll and an orbiting scroll, each of which has a spiral wrap standing upright on the inner surface of the end plate, are meshed with each other, and are placed in a boss projecting from the central portion of the lower surface of the end plate of the orbiting scroll. The drive bush is rotatably fitted, and the eccentric drive pin protruding from the rotary shaft is fitted in the hole formed in this drive bush to balance the dynamic unbalance due to the orbiting motion of the orbiting scroll. A balance weight for making the relative rotatably fit around the boss and interlockingly connected to the rotary shaft,
In a scroll fluid machine that lubricates the outer peripheral surface of the boss and the inner peripheral surface of the balance weight slidably contacting the outer peripheral surface of the boss with lubricating oil ejected from an oil supply hole that opens at the upper end of the eccentric drive pin, the inner peripheral surface of the balance weight A scroll type fluid machine characterized in that an oil supply groove extending vertically is bored from the upper surface to the lower surface of the balance weight.
記給油溝に連通して放射方向に伸びる第２の給油溝を穿
設したことを特徴とする請求項１記載のスクロール型流
体機械。2. The scroll type fluid machine according to claim 1, wherein a second oil supply groove having an inner end communicating with the oil supply groove and extending in a radial direction is provided on an upper surface of the balance weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05302189A JP3105720B2 (en) | 1993-11-09 | 1993-11-09 | Scroll type fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05302189A JP3105720B2 (en) | 1993-11-09 | 1993-11-09 | Scroll type fluid machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07133773A true JPH07133773A (en) | 1995-05-23 |
| JP3105720B2 JP3105720B2 (en) | 2000-11-06 |
Family
ID=17906010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05302189A Expired - Lifetime JP3105720B2 (en) | 1993-11-09 | 1993-11-09 | Scroll type fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3105720B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2973083A1 (en) * | 2011-03-23 | 2012-09-28 | Danfoss Scroll Technologies Llc | COUNTERWEIGHT INCORPORATED IN A SLIDING BLOCK FOR A SPIRAL COMPRESSOR |
| CN103375402A (en) * | 2012-04-11 | 2013-10-30 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
| CN104131974A (en) * | 2013-10-25 | 2014-11-05 | 柳州易舟汽车空调有限公司 | Scroll compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101901030B1 (en) * | 2016-12-01 | 2018-09-20 | 천영선 | A fish luring lamp using optical fiber |
-
1993
- 1993-11-09 JP JP05302189A patent/JP3105720B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2973083A1 (en) * | 2011-03-23 | 2012-09-28 | Danfoss Scroll Technologies Llc | COUNTERWEIGHT INCORPORATED IN A SLIDING BLOCK FOR A SPIRAL COMPRESSOR |
| CN103375402A (en) * | 2012-04-11 | 2013-10-30 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
| US9879673B2 (en) | 2012-04-11 | 2018-01-30 | Emerson Climate Technologies (Suzhou) Co., Ltd. | Scroll compressor |
| CN104131974A (en) * | 2013-10-25 | 2014-11-05 | 柳州易舟汽车空调有限公司 | Scroll compressor |
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| Publication number | Publication date |
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| JP3105720B2 (en) | 2000-11-06 |
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