JPH01134088A - Rotary compressor - Google Patents
Rotary compressorInfo
- Publication number
- JPH01134088A JPH01134088A JP62291076A JP29107687A JPH01134088A JP H01134088 A JPH01134088 A JP H01134088A JP 62291076 A JP62291076 A JP 62291076A JP 29107687 A JP29107687 A JP 29107687A JP H01134088 A JPH01134088 A JP H01134088A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- bearing
- oil groove
- vane
- lower bearing
- 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
- 239000003921 oil Substances 0.000 abstract description 37
- 239000010687 lubricating oil Substances 0.000 abstract description 14
- 239000003507 refrigerant Substances 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010721 machine oil Substances 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
- F01C21/02—Arrangements of bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、と−トポンプ利用の空気調和機等のフロン系
冷媒ガスを圧縮するアウターロータ式回転圧縮機に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an outer rotor rotary compressor for compressing fluorocarbon-based refrigerant gas, such as in an air conditioner using a toto pump.
従来の技術
従来、アウターロータ式回転圧縮機として、第４図、第
５図に示す如く、ピストン部２を有する固定軸６と、前
記ピストン部２を回転するシリンダ９、上軸受１１、下
軸受１３で囲まれたシリンダ容積を前記シリンダ９に設
けられたベーンで仕切って容積変化させる圧縮部構成と
し、その外周に前記下軸受に連結された回転ヨーク１４
と永久磁石１５、さらに前記永久磁石１５の外周にステ
ータ１６を設けて駆動部を構成して小型化をはかること
が考えられている。しかし、シャフト１と前記上軸受１
１及び下軸受との摺動面の潤滑は、回転する前記下軸受
１３の内周にラセン油溝４を設けてポンプ作用で前記油
溝４内に潤滑油を流しているけれども、第６図に示す如
く、、前記油溝４内の潤滑油１４は回転による遠心力で
外側に寄って前記シャフト１０面から離れて流れる為に
焼付きという問題があり、信頼性に欠ける。2. Description of the Related Art Conventionally, as shown in FIGS. 4 and 5, an outer rotor type rotary compressor has a fixed shaft 6 having a piston portion 2, a cylinder 9 that rotates the piston portion 2, an upper bearing 11, and a lower bearing. 13 is partitioned by a vane provided on the cylinder 9 to change the volume, and a rotating yoke 14 connected to the lower bearing is attached to the outer periphery of the compression section.
It has been considered to provide a permanent magnet 15 and a stator 16 around the outer periphery of the permanent magnet 15 to form a driving section to achieve miniaturization. However, the shaft 1 and the upper bearing 1
In order to lubricate the sliding surfaces between the rotating lower bearing 13 and the lower bearing 13, a helical oil groove 4 is provided on the inner periphery of the rotating lower bearing 13, and lubricating oil is flowed into the oil groove 4 by a pump action. As shown in FIG. 2, the lubricating oil 14 in the oil groove 4 flows outward and away from the surface of the shaft 10 due to centrifugal force due to rotation, which causes a problem of seizure and lacks reliability.
本発明はかかる従来の問題点を解消して信頼性確保をは
かるものである。The present invention aims to solve these conventional problems and ensure reliability.
問題点を解決するための手段
上記問題点を解決するために本発明のアウターロータ式
回転圧縮機は、軸線方向に吸入ポートを有するとともに
外周にラセン形状の油溝を設けたシャフトと、前記シャ
フト径より大きくかつ偏心してなり前記シャフトの吸入
ポートと連通したポートを径方向に有するとともに軸線
方向に油流通路を設けたピストン部を一体構成とした固
定軸と、出没可能に設けられたベーン、前記ベーンの溝
を有し前記固定軸のピストン部外周を回転する同心円筒
形状のシリンダーと、前記シリンダーの端面に設けられ
た上軸受と下軸受とから圧縮部を設け、前記シリンダー
と前記上軸受と前記下軸受は回転自在構成とし、前記下
軸受と連結され前記シリンダの外周に設けられた回転ヨ
ーク及び永久磁石と、前記永久磁石の外周にステータを
設けて小型化構成としたものである。又、回転しない前
記シャフトにラセン油溝を設けているとともに下軸受側
のシャフトのラセン油溝から吸い上げられた潤滑油をピ
ストン部の油流通路を介して上軸受側のシャフトのラセ
ン油溝に供給する構成としている為にラセン油溝内で潤
滑油が摺動面から離れることもなく充分に軸受部を潤滑
する。Means for Solving the Problems In order to solve the above problems, an outer rotor type rotary compressor of the present invention includes a shaft having a suction port in the axial direction and a helical oil groove on the outer periphery, and the shaft. a fixed shaft that is integrally configured with a piston portion that is larger than the diameter and eccentric and has a port communicating with the suction port of the shaft in the radial direction and an oil flow passage in the axial direction, and a vane that is retractably provided; A compression section is provided from a concentric cylindrical cylinder having a groove in the vane and rotating around the outer periphery of the piston portion of the fixed shaft, and an upper bearing and a lower bearing provided on an end surface of the cylinder, and the compression section is formed by the cylinder and the upper bearing. The lower bearing is configured to be freely rotatable, and a rotary yoke and a permanent magnet are connected to the lower bearing and provided on the outer periphery of the cylinder, and a stator is provided on the outer periphery of the permanent magnet to achieve a compact structure. In addition, a helical oil groove is provided on the shaft that does not rotate, and the lubricating oil sucked up from the helical oil groove on the shaft on the lower bearing side is transferred to the helical oil groove on the shaft on the upper bearing side via the oil flow passage in the piston part. Since it is configured to supply lubricating oil within the helical oil groove, it does not separate from the sliding surface and sufficiently lubricates the bearing part.
作 用
本発明は上記構成によって、ステータへの通電によシ永
久磁石と回転ヨークを駆動し、前記回転ヨークと連結さ
れている下軸受、ベーンを有するシリンダー、上軸受を
回転させることにより回転しないピストン部との空間を
前記ベーンで囲い容積変化により前記シャフトの吸入ポ
ートから吸入した低圧のフロン系冷媒ガスを圧縮する。According to the above-mentioned configuration, the present invention drives the permanent magnet and the rotating yoke by energizing the stator, and rotates the lower bearing, the cylinder having the vane, and the upper bearing connected to the rotating yoke, so that the stator does not rotate. The vane encloses the space between the piston part and compresses the low-pressure fluorocarbon-based refrigerant gas sucked in from the intake port of the shaft by changing the volume.
又、軸受部の潤滑油は回転する下軸受と回転しないシャ
フトの微少すきまを粘性ポンプ作用でシャフトのラセン
形状油溝を下から上へ流れ、ピストン部の油流通路を通
って上軸受側のシャフトのラセン形状油溝に流れ、同じ
作用で上方へ流れ出る。In addition, the lubricating oil in the bearing flows through the small gap between the rotating lower bearing and the non-rotating shaft through the helical oil groove of the shaft from bottom to top through the action of a viscous pump, passes through the oil flow passage in the piston, and is transferred to the upper bearing side. It flows into the helical oil groove of the shaft and flows upward by the same action.
実施例
以下、本発明の実施例を添付図面にもとづいて説明する
。Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.
第１図、第２図、第３図において、２１はシャフト、２
２はピストン部であり、前記シャフト２１の直径より大
きく、又、軸の中心が前記シャフト２１の軸中心とは偏
心してなる。２３は吸入ポートであり、前記シャフト２
１の軸方向と前記ピストン部２２の径方向を連通してな
る。２４は油溝であり、前記シャフト２１の外周をラセ
ン状に切欠いである。２５は油流通路であり、前記ピス
トン部２２を軸線方向に設けである。２６は固定軸であ
り、前記シャフト２１と前記ピストン部２２を一体構成
してなる。２７はベーン、２８はベーンバネであり、前
記ベー７２７の先端を前記ピストン部２２に押しつける
働きをする。２９はシリンダーであり、同心円筒形状を
なし前記ベーン２７の溝を有する。３ｏは吐出ポート、
ａｌは上軸受であり、前記吐出ポー）３０を有している
。In Figures 1, 2, and 3, 21 is a shaft;
Reference numeral 2 denotes a piston portion, which is larger in diameter than the shaft 21 and whose center is offset from the shaft center. 23 is a suction port, and the shaft 2
The axial direction of the piston portion 1 and the radial direction of the piston portion 22 are communicated with each other. Reference numeral 24 denotes an oil groove, which is cut out in the outer circumference of the shaft 21 in a helical shape. Reference numeral 25 denotes an oil flow passage, which is provided in the axial direction of the piston portion 22. 26 is a fixed shaft, and the shaft 21 and the piston portion 22 are integrally formed. 27 is a vane, and 28 is a vane spring, which functions to press the tip of the vane 727 against the piston portion 22. A cylinder 29 has a concentric cylindrical shape and has the groove of the vane 27. 3o is the discharge port,
al is an upper bearing and has the above-mentioned discharge port) 30.
３２は吐出弁であり、前記上軸受３１に固定されている
。３３は下軸受、３４は回転ヨーク、３５は永久磁石で
ある。又、前記回転ヨーク３４と前記永久磁石３５は前
記シリンダー２９の外周に設けられ、前記下軸受３３と
連結されている。前記シリンダー ２９、前記上軸受３
１、前記下軸受３３、前記回転ヨーク３４、前記永久磁
石３５は一体となって前記固定軸２６の前記シャフト２
１の軸心を中心として回転する。３６はステータ、３７
はハウジング、３８は潤滑油である。32 is a discharge valve, which is fixed to the upper bearing 31. 33 is a lower bearing, 34 is a rotating yoke, and 35 is a permanent magnet. Further, the rotating yoke 34 and the permanent magnet 35 are provided on the outer periphery of the cylinder 29 and connected to the lower bearing 33. The cylinder 29, the upper bearing 3
1. The lower bearing 33, the rotating yoke 34, and the permanent magnet 35 are integrally connected to the shaft 2 of the fixed shaft 26.
Rotates around the 1st axis. 36 is a stator, 37
38 is a housing, and 38 is a lubricating oil.
上記構成において、次に作用を説明する。In the above configuration, the operation will be explained next.
前記ステータ３６に通電されると磁界により前記永久磁
石３５は回転し、それによって前記永久磁石３５と連結
されている前記回転ヨーク３４、前記下軸受３３、前記
シリンダー２９、前記上軸受３１、前記ベーン２７、前
記吐出弁３２は回転する。そして、低圧の冷媒ガスは前
記シャフト２１、前記ピストン部２２に設けられている
吸入ポート２３を通って前記シリンダー２９、前記上軸
受３１、前記下軸受３３と前記ピストン部２２で囲まれ
た空間に吸入される。ここで、前記シリンダー２９の回
転にともなう前記ベーン２７の回転により生ずる容積変
化で冷媒ガスは圧縮されて高圧となり、前記吐出弁３２
は開となって前記上軸受３１に設けられている前記吐出
ポート３０から前記ハウジング３７の内部空間に吐出さ
れる。When the stator 36 is energized, the permanent magnet 35 rotates due to the magnetic field, thereby causing the rotating yoke 34 connected to the permanent magnet 35, the lower bearing 33, the cylinder 29, the upper bearing 31, and the vane to rotate. 27. The discharge valve 32 rotates. Then, the low-pressure refrigerant gas passes through the intake port 23 provided in the shaft 21 and the piston portion 22 and enters the space surrounded by the cylinder 29, the upper bearing 31, the lower bearing 33, and the piston portion 22. Inhaled. Here, the refrigerant gas is compressed to high pressure due to a change in volume caused by the rotation of the vane 27 as the cylinder 29 rotates, and the discharge valve 32
is opened and discharged from the discharge port 30 provided in the upper bearing 31 into the internal space of the housing 37.
又、前記ハウジング３７の下部に溜っている潤滑油（冷
凍機油）３８は前記下軸受３３の回転により粘性ポンプ
作用で回転しない前記シャフト２１のラセン状油溝２４
に吸上げられ、前記シャフト２１と前記下軸受３３のク
リアランスをシールと潤滑作用して前記油溝２４を通り
、前記ピストン部２２の前記油流通路２５を流れ、次に
前記上軸受３１０回転による同作用で前記上軸受３１側
の前記シャフト２１のラセン状油溝２４を通って前記ハ
ウジング３７の内部空間に吐出され、落下して再び前記
ハウジング３７の下部に溜まる。よって、回転する上軸
受３１及び下軸受３３には潤滑油の油溝を設けず、回転
しないシャフト２１に設けているため、油溝２４内の潤
滑油は遠心力を受けて外側に寄ることもなく、摺動面全
体を充分に潤滑する。Furthermore, the lubricating oil (refrigerating machine oil) 38 accumulated in the lower part of the housing 37 flows into the helical oil groove 24 of the shaft 21, which does not rotate due to the viscous pump action due to the rotation of the lower bearing 33.
The oil is sucked up by the shaft 21 and the lower bearing 33, acts to seal and lubricate the clearance between the shaft 21 and the lower bearing 33, passes through the oil groove 24, flows through the oil flow passage 25 of the piston portion 22, and then is caused by the rotation of the upper bearing 310. By the same action, oil is discharged into the internal space of the housing 37 through the helical oil groove 24 of the shaft 21 on the upper bearing 31 side, falls down, and accumulates in the lower part of the housing 37 again. Therefore, since oil grooves for lubricating oil are not provided in the rotating upper bearing 31 and lower bearing 33, but are provided in the non-rotating shaft 21, the lubricating oil in the oil groove 24 may be subjected to centrifugal force and move to the outside. The entire sliding surface is sufficiently lubricated.
発明の効果
以上のように本発明の回転圧縮機によれば次の効果が得
られる。Effects of the Invention As described above, the rotary compressor of the present invention provides the following effects.
（１） ピストン部を有する固定軸と、ピストン部を
回転する上軸受とシリンダーと下軸受で囲った空間を前
記シリンダーに設けられたベーンで仕切って容積変化さ
せる圧縮構成とし、その外周に前記下軸受に固着された
回転ヨークと永久磁石、さらに前記永久磁石の外周にヌ
テーターを設けて駆動部を構成しているので小型化可能
となる。(1) A compression structure is adopted in which a space surrounded by a fixed shaft having a piston part, an upper bearing rotating the piston part, a cylinder, and a lower bearing is partitioned by a vane provided in the cylinder to change the volume, and the lower part is attached to the outer periphery of the space. Since the drive unit is composed of a rotating yoke fixed to a bearing, a permanent magnet, and a nutator provided around the outer periphery of the permanent magnet, it is possible to reduce the size.
（２）回転しないシャフト外周にラセン油溝を設け、さ
らに上軸受側と下軸受側のシャフト部を連通ずる油流通
路をピストン部に設け、下軸受の回転にともなう粘性ポ
ンプ作用でハウジング下部に溜っている潤滑油を下軸受
側のシャフトのラセン状油溝内に吸上げ、ピストン部の
油流通路を通って同作用で上軸受側のシャフトのう七ン
状油溝内を流す構成としている為に潤滑性も非常に良い
。(2) A helical oil groove is provided on the outer periphery of the non-rotating shaft, and an oil flow passage is provided in the piston section that communicates the shaft sections on the upper and lower bearing sides. The lubricating oil that has accumulated is sucked up into the helical oil groove of the shaft on the lower bearing side, passes through the oil flow passage in the piston part, and flows through the helical oil groove of the shaft on the upper bearing side in the same way. It also has very good lubricity.
第１図は本発明の一実施例における回転圧縮機の断面図
、第２図は第１図のＸ−Ｘ線断面図、第３図は同回転圧
縮機の固定軸の斜視図、第４図は従来の圧縮機の断面図
、第５図は従来の圧縮機の上軸受、固定軸、下軸受の斜
視図、第６図は従来の圧縮機の軸受の油溝内の潤滑油の
状態図である。
２１・・・・・シャフト、２２・・・・・・ピストン部
、２３・・吸入ポート、２４・・・・・・油溝、２５・
・・・・油流通路、２６・・・・・・固定軸、２７・・
・・・ベーン、２８・・・・・・ベーンバネ、２９・・
・・シリンダ、３０・・・・・・吐出ポート、３１・・
・・・・上軸受、３２・・・・・吐出弁、３３・・・・
・・下軸受、３４・・・・回転ヨーク、３５・・・・永
久磁石、３６ ・・−ステータ、３７・・・・・ハウジ
ング、３８・・・・潤滑油。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名２１
−−シマフト
２２−°−ピストン佑
囮−吸入ポート
２４−・−油 溝
２５− 油流ｉ路
ｄ−シリンダ
３〇−吐出ポート
３Ｉ−下軸受
３３− 下柚、受
第４図
第５図
第６図FIG. 1 is a sectional view of a rotary compressor according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. The figure is a sectional view of a conventional compressor, Figure 5 is a perspective view of the upper bearing, fixed shaft, and lower bearing of a conventional compressor, and Figure 6 is the state of lubricating oil in the oil groove of the bearing of a conventional compressor. It is a diagram. 21...Shaft, 22...Piston part, 23...Suction port, 24...Oil groove, 25...
...Oil flow passage, 26...Fixed shaft, 27...
... Vane, 28 ... Vane spring, 29 ...
...Cylinder, 30...Discharge port, 31...
...Upper bearing, 32...Discharge valve, 33...
...lower bearing, 34...rotating yoke, 35...permanent magnet, 36...stator, 37...housing, 38...lubricating oil. Name of agent: Patent attorney Toshio Nakao and 1 other person21
--Shimafuft 22-°-Piston decoy-Suction port 24--Oil groove 25-Oil flow i path d-Cylinder 3〇-Discharge port 3I-Lower bearing 33-Shimoyu, Uke Fig. 4 Fig. 5 Figure 6
Claims (1)
有するシャフトと、前記シャフト径より大きくかつ偏心
し前記シャフトの吸入ポートと連通したポートを径方向
に有するとともに軸線方向に油流通路を設けたピストン
部を一体構成とした固定軸と、出没可能に設けられたベ
ーン、前記ベーンの溝を有し前記固定軸のピストン部外
周を回転する同心円筒形状のシリンダーと、前記シリン
ダーの端面に上軸受及び下軸受を設け、前記下軸受と連
結され前記シリンダーの外周に設けられた回転ヨーク及
び永久磁石と、前記永久磁石の外周にステータを設けた
回転圧縮機。a shaft having a suction port in the axial direction and a helical oil groove on the outer periphery; a port having a diameter larger than the shaft diameter and eccentrically communicating with the suction port of the shaft in the radial direction; and an oil flow passage in the axial direction. a fixed shaft integrally comprising a piston portion provided with a piston portion, a vane provided so as to be retractable and retractable, a concentric cylindrical cylinder having a groove for the vane and rotating around the outer periphery of the piston portion of the fixed shaft, and an end surface of the cylinder. A rotary compressor comprising: an upper bearing and a lower bearing; a rotating yoke and a permanent magnet connected to the lower bearing and provided on the outer periphery of the cylinder; and a stator provided on the outer periphery of the permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62291076A JPH01134088A (en) | 1987-11-18 | 1987-11-18 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62291076A JPH01134088A (en) | 1987-11-18 | 1987-11-18 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01134088A true JPH01134088A (en) | 1989-05-26 |
Family
ID=17764120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62291076A Pending JPH01134088A (en) | 1987-11-18 | 1987-11-18 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01134088A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196814B1 (en) | 1998-06-22 | 2001-03-06 | Tecumseh Products Company | Positive displacement pump rotatable in opposite directions |
| CN102626971A (en) * | 2012-05-03 | 2012-08-08 | 西南铝业（集团）有限责任公司 | Method for manufacturing rubber roll of stretching straightening machine |
| CN105545750A (en) * | 2016-01-21 | 2016-05-04 | 珠海凌达压缩机有限公司 | Rotary compressor and air conditioner |
-
1987
- 1987-11-18 JP JP62291076A patent/JPH01134088A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196814B1 (en) | 1998-06-22 | 2001-03-06 | Tecumseh Products Company | Positive displacement pump rotatable in opposite directions |
| CN102626971A (en) * | 2012-05-03 | 2012-08-08 | 西南铝业（集团）有限责任公司 | Method for manufacturing rubber roll of stretching straightening machine |
| CN105545750A (en) * | 2016-01-21 | 2016-05-04 | 珠海凌达压缩机有限公司 | Rotary compressor and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6264446B1 (en) | Horizontal scroll compressor | |
| JP3851971B2 (en) | CO2 compressor | |
| US5593297A (en) | Scroll type compressor | |
| EP0683321B1 (en) | Swinging rotary compressor | |
| KR100321687B1 (en) | Fluid pump | |
| JPWO2002061285A1 (en) | Scroll compressor | |
| JPS63186988A (en) | Rotary compressor | |
| JPH01134088A (en) | Rotary compressor | |
| US5788472A (en) | Hermetic rotary compressor with eccentric roller | |
| JP2603028Y2 (en) | Hermetic compressor and lubricating oil supply device | |
| JPS63100291A (en) | Rotary compressor | |
| JPH021997B2 (en) | ||
| JPH029982A (en) | Rotary compressor | |
| JPS5960091A (en) | Horizontal type scroll compressor | |
| KR100299589B1 (en) | Fluid appatus | |
| JPH01138392A (en) | Rotary compressor | |
| JPH01134089A (en) | Rotary compressor | |
| JPH08219043A (en) | Scroll type compressor | |
| WO2004038225A1 (en) | Compressor | |
| JPH10169579A (en) | Rotary compressor | |
| KR200284265Y1 (en) | Rotor of rotary comrressor | |
| JPH029981A (en) | Rotary compressor | |
| KR200315066Y1 (en) | Rotary compressor | |
| JPH06103033B2 (en) | Oil supply device for horizontal two-cylinder rotary compressor | |
| JPH05256283A (en) | Rolling piston type compressor |