JPS6293489A - Scroll fluid machine - Google Patents
Scroll fluid machineInfo
- Publication number
- JPS6293489A JPS6293489A JP23377285A JP23377285A JPS6293489A JP S6293489 A JPS6293489 A JP S6293489A JP 23377285 A JP23377285 A JP 23377285A JP 23377285 A JP23377285 A JP 23377285A JP S6293489 A JPS6293489 A JP S6293489A
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- oldham
- pressure chamber
- back pressure
- lubricating oil
- 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
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
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
- F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
-
- 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
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
- F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
- F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- 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、冷凍空調用、冷蔵庫用等の冷媒圧縮機あるい
は空気圧縮機として用いられる給油式スクロール流体機
械に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an oil-fed scroll fluid machine used as a refrigerant compressor or an air compressor for refrigeration and air conditioning, refrigerators, and the like.
２６ 、・
従来の技術
給油式スクロール流体機械を冷凍空調用圧縮機を例に挙
げ、第３図から第８図を参照してその基本的構成及び潤
滑方式等について説明する。第３図は、従来の空蝋機用
密閉形スクロール圧縮機の全体構造を示す。該圧縮機は
、圧縮要素部である固定スクロール部材１と旋回スクロ
ール部材２の両スクロール部材と、旋回スクロール２の
自転を防止するオルダムリング３及び主軸４、これを支
える三個の軸受部、即ち、旋回軸受５と主軸受６及び補
助軸受７Ｌ電動機８．固定スクロール１を固定するブロ
ック９などから構成される。これらの構成部品は、密閉
容器１０の内部に収納されている。第１図は密閉容器１
０が吐出圧力（高圧側圧力）の雰囲気にある高庄チャン
バ方式の構造例である。オルダムリング３（７１１、旋
回スクロール２とブロック９との間にはさｔ ｆｔ、そ
れぞれの側に設けられたオルダムキー（３２ａ、３２ｂ
、３９ａ。26. Prior Art Taking a refrigerating and air conditioning compressor as an example of a conventional oil-supplied scroll fluid machine, its basic structure, lubrication system, etc. will be explained with reference to FIGS. 3 to 8. FIG. 3 shows the overall structure of a conventional hermetic scroll compressor for an empty wax machine. The compressor includes two scroll members, a fixed scroll member 1 and an orbiting scroll member 2, which are compression element parts, an Oldham ring 3 and a main shaft 4 that prevent rotation of the orbiting scroll 2, and three bearings that support the scroll members, namely, , slewing bearing 5, main bearing 6 and auxiliary bearing 7L electric motor 8. It is composed of a block 9 for fixing the fixed scroll 1 and the like. These components are housed inside the closed container 10. Figure 1 shows airtight container 1
0 is an example of a structure of a high-pressure chamber type in which the atmosphere has a discharge pressure (high pressure side pressure). Oldham ring 3 (711, t ft between orbiting scroll 2 and block 9, Oldham keys (32a, 32b) provided on each side)
, 39a.
３９ｂ）を有し、旋回スクロール２のオルダムキー溝（
２ａ、２ｂ）とブロック９のオルダムキー３１、−
溝（９ａ、９ｂ）上を往復運動する。以上のように構成
されたスクロール流体装置において、潤滑油の流れにつ
いて説明する。39b), and the Oldham keyway of the orbiting scroll 2 (
2a, 2b) and the Oldham key 31 of the block 9 - reciprocate on the grooves (9a, 9b). In the scroll fluid device configured as above, the flow of lubricating oil will be explained.
潤滑油１１は密閉容器１ｏの下部に溜められる。Lubricating oil 11 is stored in the lower part of the closed container 1o.
主軸４の下端は容器底油の油中に浸漬し、主軸上部には
偏心軸部４ａを備え、該偏心軸部４ａが旋回軸受５を介
して、スクロール圧縮要素部である旋回スクロール部材
２と係合している。主軸４には、各軸受部への給油を行
うための縦穴４ｂが主軸下端から主軸の上端面捷で形成
される。偏心軸部４ａの下部には、旋回スクロールボス
部２Ｃの先端面を対向せる主軸受上部にバランスウエー
ト１２が、主軸４と係合し一体化して形成されている。The lower end of the main shaft 4 is immersed in oil at the bottom of the container, and the upper part of the main shaft is provided with an eccentric shaft portion 4a. engaged. In the main shaft 4, a vertical hole 4b for supplying oil to each bearing portion is formed from the lower end of the main shaft to the upper end surface of the main shaft. At the lower part of the eccentric shaft part 4a, a balance weight 12 is formed so as to be engaged with and integrated with the main shaft 4 at the upper part of the main bearing facing the tip end surface of the orbiting scroll boss part 2C.
このバランスウェート１２のある背圧室１３ケ、旋回ス
クロール２のランプの外側に小孔２ｄ。There are 13 back pressure chambers with this balance weight 12, and a small hole 2d on the outside of the lamp of the orbiting scroll 2.
２ｅを設けて、冷媒及び潤滑油を低圧室１４に導くため
、吐出圧力と低圧圧力の中間の圧力となる。2e is provided to guide the refrigerant and lubricating oil to the low pressure chamber 14, so the pressure is intermediate between the discharge pressure and the low pressure.
潤滑油１１内に浸漬された主軸４下端は高圧圧力Ｐｄの
雰囲気にあり、他方下流となる旋回軸受６のまわりは、
中間圧力Ｐｍの雰囲気にあるだめ、Ｐｄ−Ｐｍの圧力差
によって、容器底部の潤滑油１１は縦孔４ｂ内を一上列
する。縦孔４ｂ内をト列した潤滑油１１は、補助軸受７
．主軸受６へ給油されるとともに偏心ｉ１１＋部４ａの
土部空間（油用室）１６に至る。旋回ＩＴｈ受５及び主
＋１ｉＩｔ受６に至った潤滑油は、おのおのの軸受隙間
を通−）て背圧室１３へ排油される。オルダムリング３
への潤滑は、背圧室１３内へ導かれた潤滑油が噴霧潤滑
に近い状態で行なわれている。The lower end of the main shaft 4 immersed in the lubricating oil 11 is in an atmosphere of high pressure Pd, while the area around the swing bearing 6 downstream is
Since it is in an atmosphere of intermediate pressure Pm, the lubricating oil 11 at the bottom of the container is aligned one above the other in the vertical hole 4b due to the pressure difference between Pd and Pm. The lubricating oil 11 flowing through the vertical hole 4b is transferred to the auxiliary bearing 7.
．． The oil is supplied to the main bearing 6 and reaches the soil space (oil chamber) 16 of the eccentric i11+ portion 4a. The lubricating oil that has reached the swing ITh receiver 5 and the main +1iIt receiver 6 is drained into the back pressure chamber 13 through the respective bearing gaps. oldham ring 3
The lubricating oil introduced into the back pressure chamber 13 is used in a state similar to spray lubrication.
発明が解決しようとする問題点
しかしながら上記の４１：うな構成では、ブロック側の
オルダムキー溝に←１：潤滑油が溜捷るけれども、旋回
スクロール側のオルダムキー溝には潤滑油が溜まるこ々
がなくオルダムリングの旋回スクロール側の潤滑不良に
」：る摺動面の摩耗を促進させ、圧縮機の性能低下及び
信頼性の低下を助長させるという問題がある。Problems to be Solved by the Invention However, in the above-mentioned 41: U shape, lubricating oil accumulates in the Oldham key groove on the block side, but there is no possibility of lubricating oil accumulating in the Oldham key groove on the orbiting scroll side. Insufficient lubrication on the orbiting scroll side of the Oldham ring causes wear on the sliding surface, leading to a decline in compressor performance and reliability.
本発明はこのような従来の問題点を解消するものであり
、簡単な構成で旋回スクロールのオルダムキー溝に潤滑
油を導き、オルダムリング部の潤５ ベー〕
滑を向上させ、高性能で信頼性の高いスクロール流体機
械を提供するものである。The present invention solves these conventional problems, and uses a simple structure to guide lubricating oil into the Oldham keyway of the orbiting scroll, improve the lubrication of the Oldham ring, and achieve high performance and reliability. This provides a scroll fluid machine with high performance.
問題点を解決するだめの手段
上記問題点を解決するために、本発明の旋回スクロール
のオルダムキー溝に孔を設けて、吸入室と背圧室を連通
させたものである。Means for Solving the Problems In order to solve the above problems, a hole is provided in the Oldham key groove of the orbiting scroll of the present invention, so that the suction chamber and the back pressure chamber are communicated with each other.
作 用
本発明は上記した構成によって、背圧室に導かれた潤滑
油は旋回スクロールのオルダムキー溝の孔を必ず通るこ
とによって、旋回スクロールとオルダムリングの潤滑を
向上させ、圧縮機の性能低下や信頼性の低下を防止した
ものである。Effect of the Invention With the above-described configuration, the present invention improves lubrication between the orbiting scroll and the Oldham ring by ensuring that the lubricating oil guided to the back pressure chamber passes through the hole in the Oldham keyway of the orbiting scroll, thereby preventing a decrease in the performance of the compressor. This prevents a decrease in reliability.
実施例
以下、本発明の一実施例のスクロール流体機械について
図面を参照しながら説明するが図中従来と同一部分は同
一符号を付してその詳細な説明を省略する。Embodiment Hereinafter, a scroll fluid machine according to an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same parts as in the conventional art are given the same reference numerals, and detailed explanation thereof will be omitted.
第１図と第２図において、１６．１７は旋回スクロール
２のオルダムキー溝２ａ、２ｂに設けた低圧室１４と背
圧室１３とを連通させる孔である。In FIGS. 1 and 2, 16 and 17 are holes provided in the Oldham key grooves 2a and 2b of the orbiting scroll 2, which communicate the low pressure chamber 14 and the back pressure chamber 13.
６ベ。6 be.
以上のように構成され／こスクロール流体機械において
、密閉容器１０の下部に溜められ／こ潤滑油１１はＰｄ
−Ｐｍの圧力差によって、旋回軸受５及び主軸受６を潤
？ｉｔ ｌ〜だ後、背圧室１３に導か′ｉする。In this scroll fluid machine configured as described above, the lubricating oil 11 is stored in the lower part of the closed container 10.
- Is the swing bearing 5 and main bearing 6 moistened by the pressure difference of Pm? After that, it is introduced into the back pressure chamber 13.
背圧室１３の潤滑油は、旋回スクロール２のオルダムキ
ー溝２ａ、２ｂに設けられた小孔１６．１７を通って背
圧室１３よりも圧力の低い低圧室１４に導かｔｌて固定
スクロール１と旋回スフＩ：１− ／し２のラップの潤
滑をする。The lubricating oil in the back pressure chamber 13 passes through small holes 16.17 provided in the Oldham keyways 2a and 2b of the orbiting scroll 2, and is led to the low pressure chamber 14, which has a lower pressure than the back pressure chamber 13, and is then connected to the fixed scroll 1. Lubricate the laps of the rotating shaft I: 1-/2.
以−にのように本発明によれば、オルダム洩リング３の
キー（３２ａ、３２ｂ ）と旋回スクロール２のキー溝
（２ａ、２ｂ）の摺動部には、噴霧潤滑だけでなく孔（
１６，１７）を設けたことに」こる強制潤滑が可能とな
る。As described above, according to the present invention, the sliding parts of the keys (32a, 32b) of the Oldham leak ring 3 and the keyways (2a, 2b) of the orbiting scroll 2 are provided with not only spray lubrication but also holes (
16, 17) enables forced lubrication.
発明の効牙ｉ
以上のように本発明ｋｌ１、旋回スクロールのオルダム
キー溝に、背圧室と吸入室を連通させる小孔を設けるこ
とに、１：す、旋回スクロールとオルダムリングの潤滑
性を向上させることで摩耗を防ぎ、圧縮機の性能低下や
信４１’ｉ ＋′Ｉの低下を防屯する効宋７ ．１．−
がある。Effects of the Invention As described above, the present invention kl1 has the following advantages: 1. Improving the lubricity of the orbiting scroll and the Oldham ring by providing a small hole that communicates the back pressure chamber and the suction chamber in the Oldham key groove of the orbiting scroll. This effect prevents wear and prevents a decline in compressor performance and reliability.Song 7. 1. - There is.
第１図は本発明の一実施例を示すスクロール流体機械の
旋回スクロールの平面図、第２図は第１図のＩ−Ｉ線に
おける矢視断面図、第３図は従来の密閉形スクロール圧
縮機の縦断面図、第４図と第６図はオルダムリングとオ
ルダムキーの位置関係を示す平面図と縦断面図、第６図
は従来技術の旋回スクロールの平面図、第７図は第６図
のｎ−■′線における矢視断面図、第８図は第６図の■
−■′線における矢視断面図である。
１・・・・・・固定スクロール、２・・・・・・旋回ス
クロール、２ａ、２ｂ・・・・・・旋回スクロールのオ
ルダムキー溝、１３・・・・・・背圧室、１４・・・・
・・低圧室、１６．１７・・・・・・孔。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名／６
． ／１−Ｊ＋
／３−−−−￥工豊
１４−−一啜、人里
第６図
第８図Fig. 1 is a plan view of an orbiting scroll of a scroll fluid machine showing an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line I-I in Fig. 1, and Fig. 3 is a conventional closed scroll compressor. A vertical sectional view of the machine, FIGS. 4 and 6 are a plan view and a vertical sectional view showing the positional relationship between the Oldham ring and the Oldham key, FIG. 6 is a plan view of a conventional orbiting scroll, and FIG. Figure 8 is a sectional view taken along the line n-■' of Figure 6.
It is a sectional view taken along the line -■'. 1... Fixed scroll, 2... Orbiting scroll, 2a, 2b... Oldham key groove of orbiting scroll, 13... Back pressure chamber, 14...・
...Low pressure chamber, 16.17...hole. Name of agent: Patent attorney Toshio Nakao and 1 other person/6
．． /1-J+ /3-----￥Koho 14--One sip, human village Figure 6 Figure 8
Claims (1)
スクロール部材は鏡板とこれに直立した渦巻状のラップ
とからなり、両スクロール部材を互いにラップを内側に
してかみ合せ、一方の旋回スクロールが見かけ上自転し
ないように旋回運動させ両スクロール部材により形成さ
れる密閉空間を、外側から中心へ移動せしめ、容積を減
少させて流体を圧縮する装置であって、前記旋回スクロ
ールのオルダムキー溝に孔を設けて、背圧室と吸入室と
を連通させたことを特徴とするスクロール流体機械。It has a fixed scroll and an orbiting scroll, and these pair of scroll members consist of an end plate and a spiral wrap standing upright on the end plate. Both scroll members are engaged with each other with the wrap inside, and one orbiting scroll apparently rotates on its axis. A device for compressing fluid by moving a closed space formed by both scroll members from the outside to the center to reduce the volume, the device comprising: providing a hole in the Oldham keyway of the orbiting scroll; A scroll fluid machine characterized in that a back pressure chamber and a suction chamber are communicated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23377285A JPS6293489A (en) | 1985-10-18 | 1985-10-18 | Scroll fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23377285A JPS6293489A (en) | 1985-10-18 | 1985-10-18 | Scroll fluid machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6293489A true JPS6293489A (en) | 1987-04-28 |
Family
ID=16960330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23377285A Pending JPS6293489A (en) | 1985-10-18 | 1985-10-18 | Scroll fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6293489A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870081A (en) * | 1981-10-23 | 1983-04-26 | Hitachi Ltd | Scroll compressor |
| JPS61157782A (en) * | 1984-12-28 | 1986-07-17 | Toshiba Corp | Scroll compressor |
-
1985
- 1985-10-18 JP JP23377285A patent/JPS6293489A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870081A (en) * | 1981-10-23 | 1983-04-26 | Hitachi Ltd | Scroll compressor |
| JPS61157782A (en) * | 1984-12-28 | 1986-07-17 | Toshiba Corp | Scroll compressor |
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