JPH0689750B2 - Oldham joint structure of scroll compressor - Google Patents
Oldham joint structure of scroll compressorInfo
- Publication number
- JPH0689750B2 JPH0689750B2 JP22958086A JP22958086A JPH0689750B2 JP H0689750 B2 JPH0689750 B2 JP H0689750B2 JP 22958086 A JP22958086 A JP 22958086A JP 22958086 A JP22958086 A JP 22958086A JP H0689750 B2 JPH0689750 B2 JP H0689750B2
- Authority
- JP
- Japan
- Prior art keywords
- orbiting scroll
- boss
- scroll
- orbiting
- oldham coupling
- 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
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
- 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
-
- 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
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 本発明は旋回スクロールと機械のケーシング間に架設さ
れ、旋回スクロールの自転を拘束しながらこれを移動さ
せるスクロール圧縮機のオルダム継手構造に関するもの
である。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an Oldham coupling structure for a scroll compressor which is installed between an orbiting scroll and a casing of a machine and moves the orbiting scroll while restraining its rotation.
従来の技術 第５図および第６図に示す如く、旋回スクロールのボス
部に係合するオルダム継手1Aは互に直交する係止部2A,3
Aをそれぞれ逆方向に突出形成するリング状部材から一
般に形成される。オルダム継手1Aは係止部の内の１つ、
例えば係止部2Aをスクロール圧縮機の不動側たるケーシ
ングに係止すると共に、もう１つの係止部を旋回スクロ
ールに係止せしめて配設される。これにより旋回スクロ
ールの自転を拘束しながら旋回半径分だけ旋回スクロー
ルを移動可能に保持する。2. Description of the Related Art As shown in FIGS. 5 and 6, the Oldham's joint 1A engaged with the boss portion of the orbiting scroll has locking portions 2A, 3 orthogonal to each other.
It is generally formed from ring-shaped members that project A in opposite directions. Oldham coupling 1A is one of the locking parts,
For example, the locking portion 2A is locked to the stationary side casing of the scroll compressor, and the other locking portion is locked to the orbiting scroll. As a result, the orbiting scroll is held movably by the orbiting radius while restraining the rotation of the orbiting scroll.
発明が解決しようとする問題点 前記の如く、オルダム継手1Aは相互に逆方向に突出する
２つの係止部2A,3Aから形成されると共に、両者の直角
度が要求されることから、係止部2A,3Aの加工に時間を
要し、かつ加工精度の確保が難しい欠点があった。Problems to be Solved by the Invention As described above, the Oldham coupling 1A is formed of two locking portions 2A and 3A protruding in mutually opposite directions, and the squareness of both is required, so The parts 2A and 3A require a long time to process, and it is difficult to secure the processing accuracy.
本発明は前記欠点を解決するもので、加工精度の確保が
でき、加工容易で多量生産ができ、加工コストを低減し
得るスクロール圧縮機のオルダム継手構造を提供するこ
とにある。The present invention solves the above-mentioned drawbacks, and an object of the present invention is to provide an Oldham coupling structure for a scroll compressor that can secure processing accuracy, can be easily processed, can be mass-produced, and can reduce processing cost.
問題点を解決するための手段 本発明はこのために、オルダム継手をグランド状の輪状
部材から形成し、その一方向の内面寸法を前記輪状部材
が緩挿される旋回スクロールのラップの背面側に突出形
成されるボス外径よりもやや大き目に形成し、直交する
他方向を少くとも前記ボス外径に旋回スクロールの旋回
半径の２倍を加算した寸法以上に形成すると共に、前記
輪状部材の表面に沿って外方に伸延する係止部を前記直
交する方向にそれぞれ設けてなるスクロール圧縮機のオ
ルダム継手構造を構成するものである。Means for Solving the Problems For this purpose, the present invention forms the Oldham coupling from a gland-shaped ring-shaped member, and projects the inner surface dimension in one direction to the back side of the wrap of the orbiting scroll in which the ring-shaped member is loosely inserted. It is formed slightly larger than the outer diameter of the boss to be formed, and the other direction orthogonal to the boss is formed to be at least equal to or larger than the outer diameter of the boss plus twice the orbiting radius of the orbiting scroll, and on the surface of the ring-shaped member. The present invention constitutes an Oldham coupling structure of a scroll compressor in which locking portions extending outward along the orthogonal direction are provided.
実施例 以下、本発明の実施例を図面に基づき説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図および第２図に本実施例のオルダム継手１を示
す。1 and 2 show the Oldham's joint 1 of this embodiment.
オルダム継手１は第１図に示す如く、グランド状の輪状
部材から形成され、その小径側の内面寸法Ｍは旋回スク
ロール４（第４図）のボス4B（第４図）の外径よりやや
大き目に形成される。また前記小径側と直交する大径側
の内面寸法Ｌは少くともボス4Bの外径に旋回スクロール
４の旋回半径の２倍を加算した寸法に形成される。内面
寸法Ｍがボス外径よりも大きいのは、前記の如く、オル
ダム継手１をボス4Bに緩挿せしめて配設するためであ
り、内面寸法Ｌを前記の如く定めたのは旋回スクロール
４の移動によりボス4Bとオルダム継手１の内面との干渉
を防止するためである。As shown in FIG. 1, the Oldham coupling 1 is formed of a gland-shaped annular member, and the inner diameter dimension M on the small diameter side is slightly larger than the outer diameter of the boss 4B (FIG. 4) of the orbiting scroll 4 (FIG. 4). Is formed. The inner surface dimension L on the large diameter side orthogonal to the small diameter side is formed to be at least the outer diameter of the boss 4B plus twice the orbiting radius of the orbiting scroll 4. The inner surface dimension M is larger than the boss outer diameter because the Oldham coupling 1 is loosely inserted in the boss 4B as described above, and the inner surface dimension L is determined as described above because the orbiting scroll 4 moves. This is to prevent interference between the boss 4B and the inner surface of the Oldham coupling 1.
前記輪状部材の直交する前記２方向（小径および大径方
向）には輪状部材の表面と同一レベル上において外方に
適宜長だけ伸延する細長は係止部2,3がそれぞれ形成さ
れる。In the two directions (small-diameter and large-diameter direction) orthogonal to the ring-shaped member, locking portions 2 and 3 are respectively formed on the same level as the surface of the ring-shaped member and extending outwardly by an appropriate length.
以上の構造によりオルダム継手１は方向からの輪郭加工
により仕上げられ、重ねる事により同時に複数個の加工
が出来る。また場合により精密打抜き成形して形成する
ことができる。従って極めて加工し易いと共に、多量生
産が可能となり、加工コスト，製品コストと低減するこ
とができる。また従来技術の如く、逆方向から係止部2
A,3Aを加工する必要がなく、加工精度を向上することが
可能となる。With the above structure, the Oldham's joint 1 is finished by contour processing from the direction, and a plurality of processings can be simultaneously performed by stacking. In some cases, it can be formed by precision punching. Therefore, it is extremely easy to process, mass production is possible, and processing cost and product cost can be reduced. In addition, as in the prior art, the locking portion 2
Since it is not necessary to process A and 3A, the processing accuracy can be improved.
第３図および第４図により前記形状のオルダム継手１の
取付け状態を説明する。第４図に示す如く、旋回スクロ
ール４は鏡板4Cから突出するラップ4Aとこの背面側に突
出するボス4Bとから形成される。ボス4B内には軸受10を
介し主軸（回転軸）11のクランク軸12が枢着される。ま
た鏡板4Cのボス4B側表面にはオルダム継手１の係止部３
が係止する溝７を有するガイド部材６が設けられてい
る。The attached state of the Oldham coupling 1 having the above-described shape will be described with reference to FIGS. 3 and 4. As shown in FIG. 4, the orbiting scroll 4 is formed of a wrap 4A projecting from the end plate 4C and a boss 4B projecting to the back side. A crankshaft 12 of a main shaft (rotary shaft) 11 is pivotally mounted in the boss 4B via a bearing 10. Also, on the surface of the end plate 4C on the boss 4B side, the locking portion 3 of the Oldham coupling 1 is provided.
A guide member 6 having a groove 7 for locking is provided.
固定スクロール５は機械不動側のケーシング９に固定さ
れ、旋回スクロール４と係合するラップ5Aを突出形成す
る旋回スクロール４と固定スクロール５のラップ4A,5A
内に導入された媒体は旋回スクロール４の移動によりラ
ップ4A,5A間で圧縮され所望圧力の圧縮媒体を発生させ
る。The fixed scroll 5 is fixed to the casing 9 on the stationary side of the machine, and the wraps 4A and 5A of the orbiting scroll 4 and the fixed scroll 5 projectingly form a wrap 5A that engages with the orbiting scroll 4.
The medium introduced therein is compressed between the wraps 4A and 5A by the movement of the orbiting scroll 4, and a compressed medium having a desired pressure is generated.
ケーシング９の旋回スクロール４のガイド部材６線上と
直交する方向にはオルダム継手１の係止部２が摺動可能
に係合するガイド溝８が形成される。A guide groove 8 with which the locking portion 2 of the Oldham coupling 1 is slidably engaged is formed in a direction orthogonal to the guide member 6 line of the orbiting scroll 4 of the casing 9.
オルダム継手１はボス4B廻りに緩挿されると共に、その
係止部２をケーシング９のガイド溝８に係着し、もう１
つの係止部３を旋回スクロール４のガイド部６の溝７に
係止せしめて組付けられる。The Oldham coupling 1 is loosely inserted around the boss 4B, and the engaging portion 2 thereof is engaged with the guide groove 8 of the casing 9,
The two locking parts 3 are locked in the groove 7 of the guide part 6 of the orbiting scroll 4 and assembled.
次に、本実施例の作用を説明する。Next, the operation of this embodiment will be described.
オルダム継手１は前記の如く、係止部２とケーシングの
ガイド溝８に摺動可能に挿設されるので、摺動直角方向
には拘束保持される。また旋回スクロール４は主軸11の
回転により、これと偏心するクランク軸12の旋回半径分
だけ移動するが、この場合オルダム継手１の係止部３が
ガイド部６の溝７に一方向のみ摺動可能に、他方向には
拘束されているので自転しない。As described above, the Oldham coupling 1 is slidably inserted into the locking portion 2 and the guide groove 8 of the casing, and thus is held in the direction perpendicular to the sliding direction. Further, the orbiting scroll 4 moves by the orbiting radius of the crankshaft 12 which is eccentric with the rotation of the main shaft 11, but in this case, the locking portion 3 of the Oldham coupling 1 slides in the groove 7 of the guide portion 6 in only one direction. Possibly, it does not rotate because it is constrained in the other direction.
以上により、旋回スクロール４は自転を拘束されながら
旋回半径だけを移動することになる。旋回スクロール４
が旋回半径だけ移動してもオルダム継手１の移動方向に
おける内面寸法Ｌが前記の如く、少くともボス4Bの外周
と旋回半径の２倍寸法を加算したものから形成されるた
め、旋回スクロール４とオルダム継手１との干渉は生じ
ない。以上により旋回スクロールは円滑に作動する。As described above, the orbiting scroll 4 moves only the orbiting radius while being restrained from rotating. Orbiting scroll 4
Even if is moved by the orbiting radius, since the inner surface dimension L in the moving direction of the Oldham coupling 1 is formed by adding at least the outer circumference of the boss 4B and twice the orbiting radius as described above, No interference with the Oldham coupling 1 occurs. As described above, the orbiting scroll operates smoothly.
発明の効果 以上の説明によって明らかな如く、本発明によれば、オ
ルダム継手の加工が容易となると共に、オルダム継手が
ケーシングおよび旋回スクロールに円滑に支持されると
共に、多量生産も可能となることにより、加工コスト、
製品コストを低下せしめると共に、加工精度を向上し得
る効果が上げられる。EFFECTS OF THE INVENTION As is apparent from the above description, according to the present invention, the Oldham coupling can be easily processed, and the Oldham coupling can be smoothly supported by the casing and the orbiting scroll and can be mass-produced. , Processing cost,
This has the effect of reducing the product cost and improving the processing accuracy.
第１図は本発明一実施例の平面図、第２図は第１図の正
面図、第３図は実施例の取付け状態を示す平面図、第４
図は第３図のIV−IV線一部断面図、第５図は従来のオル
ダム継手の平面図、第６図は第５図の正面図である。 1,1A……オルダム継手、2,2A,3,3A……係止部、４……
旋回スクロール、4A,5A……ラップ、4B……ボス、4C…
…鏡板、５……固定スクロール、６……ガイド部、７…
…溝、８……ガイド溝、９……ケーシング、10……主
軸、11……軸受、12……クランク軸。FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a plan view showing a mounting state of the embodiment, and FIG.
The drawing is a partial sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a plan view of a conventional Oldham coupling, and FIG. 6 is a front view of FIG. 1,1A …… Oldham coupling, 2,2A, 3,3A …… Locking part, 4 ……
Orbiting scroll, 4A, 5A …… lap, 4B …… boss, 4C…
… End plate, 5 …… Fixed scroll, 6 …… Guide part, 7…
… Groove, 8 …… Guide groove, 9 …… Casing, 10 …… Main shaft, 11 …… Bearing, 12 …… Crankshaft.
Claims (1)
成されるボス廻りに緩挿される輪状部材であって、前記
旋回スクロールと機械不動側のケーシング間に係止し、
前記旋回スクロールの自転を防止するスクロール圧縮機
のオルダム継手構造において、前記輪状部材の一方向の
内面寸法を前記ボス外径よりやや大き目に形成し、これ
と直交する他方向の内面寸法を少くとも前記ボス外径に
前記旋回スクロールの旋回半径の２倍を加算した寸法以
上に形成すると共に、前記輪状部材の表面に沿いながら
外方に伸延し、一つは前記ケーシングに、他方は前記旋
回スクロールに達する係止部を前記２方向にそれぞれ形
成することを特徴とするスクロール圧縮機のオルダム継
手構造。1. A ring-shaped member that is loosely inserted around a boss that is formed on the back side of a wrap of an orbiting scroll and that is engaged between the orbiting scroll and a casing on the machine immovable side.
In an Oldham coupling structure of a scroll compressor for preventing rotation of the orbiting scroll, an inner surface dimension in one direction of the annular member is formed to be slightly larger than the outer diameter of the boss, and an inner surface dimension in the other direction orthogonal to this is at least. The boss is formed to have a size equal to or larger than the outer diameter of the boss by adding twice the orbiting radius of the orbiting scroll, and extends outward along the surface of the ring-shaped member, one in the casing and the other in the orbiting scroll. An Oldham joint structure for a scroll compressor, characterized in that the engaging portions reaching the above are respectively formed in the two directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22958086A JPH0689750B2 (en) | 1986-09-30 | 1986-09-30 | Oldham joint structure of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22958086A JPH0689750B2 (en) | 1986-09-30 | 1986-09-30 | Oldham joint structure of scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6388288A JPS6388288A (en) | 1988-04-19 |
| JPH0689750B2 true JPH0689750B2 (en) | 1994-11-14 |
Family
ID=16894407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22958086A Expired - Lifetime JPH0689750B2 (en) | 1986-09-30 | 1986-09-30 | Oldham joint structure of scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689750B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130143325A (en) * | 2012-06-21 | 2013-12-31 | 학교법인 두원학원 | Oldham coupling for scroll compressor |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2758193B2 (en) * | 1989-02-28 | 1998-05-28 | 株式会社東芝 | Scroll fluid machinery and Oldham couplings for scroll fluid machinery |
| JPH08319958A (en) * | 1995-05-24 | 1996-12-03 | Sanden Corp | Scroll type fluid device |
| JPH1122658A (en) * | 1997-07-04 | 1999-01-26 | Sanden Corp | Scroll compressor |
| JP3865478B2 (en) * | 1997-08-29 | 2007-01-10 | サンデン株式会社 | Scroll compressor |
| US6231324B1 (en) * | 2000-02-02 | 2001-05-15 | Copeland Corporation | Oldham coupling for scroll machine |
| US10400770B2 (en) | 2016-02-17 | 2019-09-03 | Emerson Climate Technologies, Inc. | Compressor with Oldham assembly |
| US11136977B2 (en) | 2018-12-31 | 2021-10-05 | Emerson Climate Technologies, Inc. | Compressor having Oldham keys |
-
1986
- 1986-09-30 JP JP22958086A patent/JPH0689750B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130143325A (en) * | 2012-06-21 | 2013-12-31 | 학교법인 두원학원 | Oldham coupling for scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6388288A (en) | 1988-04-19 |
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