JP3147547B2 - Hermetic compressor - Google Patents
Hermetic compressorInfo
- Publication number
- JP3147547B2 JP3147547B2 JP30430692A JP30430692A JP3147547B2 JP 3147547 B2 JP3147547 B2 JP 3147547B2 JP 30430692 A JP30430692 A JP 30430692A JP 30430692 A JP30430692 A JP 30430692A JP 3147547 B2 JP3147547 B2 JP 3147547B2
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- crankshaft
- shaft
- pump
- electric motor
- 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
- 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
- F04C29/025—Lubrication; Lubricant separation using a lubricant pump
Landscapes
- Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷凍空調用等の冷媒圧
縮機あるいは空気圧縮機として用いられる密閉型圧縮機
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor used as a refrigerant compressor or air compressor for refrigeration and air conditioning.
【０００２】[0002]
【従来の技術】従来、この種の圧縮機は、図４に示すよ
うに、密閉容器１０１の内部に圧縮機構１０２を駆動す
る電動機１０３の固定子１０４が固定され、この電動機
１０３の回転子１０５に圧縮機構１０２を駆動するクラ
ンク軸１０６が結合され、このクランク軸１０６の回転
軸はほぼ水平に配置されている。また密閉容器１０１の
下部が潤滑油溜１０７となっている。2. Description of the Related Art Conventionally, in this type of compressor, as shown in FIG. 4, a stator 104 of a motor 103 for driving a compression mechanism 102 is fixed inside a closed vessel 101, and a rotor 105 of the motor 103 is fixed. A crankshaft 106 for driving the compression mechanism 102 is connected to the crankshaft 106, and the rotation axis of the crankshaft 106 is disposed substantially horizontally. The lower part of the sealed container 101 is a lubricating oil reservoir 107.
【０００３】圧縮機構１０２は固定枠体１０８に固定渦
巻羽根１０９を一体に形成した固定渦巻羽根部材１１０
と、この固定渦巻羽根１０９と噛み合って複数個の圧縮
作業空間１１４を形成する旋回渦巻羽根１１１を旋回鏡
板１１２の上に形成した旋回渦巻羽根部材１１３と、こ
の旋回渦巻羽根部材１１３の自転を防止して旋回のみさ
せる自転拘束部材１１５を有し、この旋回鏡板１１２の
旋回渦巻羽根１１１とは反対側に設けた旋回駆動軸１１
６は、クランク軸１０６の一端に形成した主軸１１７の
内方に設けられた偏心軸受１１８に嵌入され、このクラ
ンク軸１０６はその主軸１１７を支承する主軸受１１９
を有する主軸受部材１２０と、主軸とは反対側のクラン
ク軸１０６の軸部を支承する副軸受１２１で支持されて
いる。また副軸受１２１はクランク軸１０６の端部に給
油機構１２２を設けるためにケーシング１２３が形成さ
れており、このケーシング１２３にはアウターロータ１
２４とインナーロータ１２５からなるトロコイドポンプ
が装着され、インナーロータ１２５はクランク軸１０６
の端部に形成されたポンプ軸１２６に嵌装している。更
にケーシング１２３には油吸込み管１２７が接続され、
この油吸込み管１２７の下端は潤滑油溜１０７に没入し
ている。A compression mechanism 102 is a fixed spiral blade member 110 in which a fixed spiral blade 109 is formed integrally with a fixed frame 108.
And a swirling spiral blade member 113 in which a swirling spiral blade 111 meshing with the fixed swirl blade 109 to form a plurality of compression working spaces 114 is formed on a swiveling end plate 112, and prevents the swirling spiral blade member 113 from rotating. And a turning drive shaft 11 provided on the opposite side of the swirling vanes 111 of the turning end plate 112.
6 is fitted into an eccentric bearing 118 provided inside a main shaft 117 formed at one end of the crankshaft 106, and the crankshaft 106 supports a main bearing 119 supporting the main shaft 117.
And a sub bearing 121 that supports the shaft of the crankshaft 106 on the opposite side of the main shaft. The auxiliary bearing 121 is provided with a casing 123 for providing an oil supply mechanism 122 at an end of the crankshaft 106.
24 and a trochoid pump consisting of an inner rotor 125 are mounted.
Is fitted on a pump shaft 126 formed at the end of the pump shaft 126. Further, an oil suction pipe 127 is connected to the casing 123,
The lower end of the oil suction pipe 127 is immersed in the lubricating oil reservoir 107.
【０００４】一方クランク軸１０６およびポンプ軸１２
６内には送油路１２８が形成されており、一方がトロコ
イドポンプに連結し、他方が圧縮機構１０２の各摺動部
に連結されている。On the other hand, the crankshaft 106 and the pump shaft 12
An oil feed passage 128 is formed in 6, one of which is connected to the trochoid pump, and the other is connected to each sliding portion of the compression mechanism 102.
【０００５】圧縮機の吸入管１２９から吸入した冷媒
は、圧縮機構１０２内の圧縮作業空間１１４で圧縮され
吐出孔１３０を経て、密閉容器１０１に設けられた吐出
管１３１を通り圧縮機の外へ吐出される（特開昭５９−
６００９２）。The refrigerant sucked from the suction pipe 129 of the compressor is compressed in the compression working space 114 in the compression mechanism 102, passes through the discharge hole 130, passes through the discharge pipe 131 provided in the closed casing 101, and goes out of the compressor. Ejected (Japanese Unexamined Patent Publication No.
60092).
【０００６】[0006]
【発明が解決しようとする課題】上記に述べた従来例の
圧縮機は、トロコイドポンプのインナーロータ１２５に
ポンプ軸１２６を嵌装し、且つ潤滑油が低粘度状態で使
用されているため圧縮機運転中、特に圧縮機の寝込み始
動時や除霜運転時等に潤滑油溜り中に冷媒の気泡が発生
することで、トロコイドポンプに気泡を噛み込んだ場合
にその隙間分でインナーロータ１２５が振動し、騒音が
発生するという課題を有していた。In the conventional compressor described above, the pump shaft 126 is fitted on the inner rotor 125 of the trochoid pump, and the lubricating oil is used in a low viscosity state. During operation, in particular, when the compressor is laid down or when the defrosting operation is performed, bubbles of the refrigerant are generated in the lubricating oil reservoir, and when the bubbles are caught in the trochoid pump, the inner rotor 125 is vibrated by the gap. However, there is a problem that noise is generated.
【０００７】本発明は上記の課題に鑑み、密閉型圧縮機
に組み込める低騒音な給油装置を供給することを目的と
するものである。SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a low-noise oil supply device that can be incorporated in a hermetic compressor.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
の技術手段は、密閉容器の内部に、電動機と、この電動
機で駆動する圧縮機構と、底部に潤滑油溜を配設し、前
記圧縮機構を前記電動機の回転力を伝えるクランク軸と
このクランク軸に形成した主軸を支承する主軸受を有す
る主軸受部材とを含んで構成し、前記クランク軸の主軸
とは反対側の端部を支承する副軸受を前記密閉容器の内
壁に固定した隔壁部材に配設固定し、この隔壁部材にケ
ーシングと、このケーシング内に外歯と内歯が相対的に
偏心回転可能に装着された歯車ポンプと、前記クランク
軸の主軸とは反対側の端部に前記内歯と嵌装するポンプ
軸と、一方が前記ポンプ軸内に形成された送油路に挿入
固定されるとともに他方が前記内歯と前記ポンプ軸の嵌
装部の隙間に弾性的に挟まれる保持器を配設固定した給
油装置を設けてなることである。The technical means for solving the above-mentioned problems is as follows. An electric motor, a compression mechanism driven by the electric motor, and a lubricating oil reservoir are provided at the bottom in a closed container. The mechanism includes a crankshaft for transmitting the rotational force of the electric motor and a main bearing member having a main bearing for supporting the main shaft formed on the crankshaft, and an end of the crankshaft opposite to the main shaft is supported. A sub-bearing to be mounted and fixed to a partition member fixed to the inner wall of the closed container, a casing mounted to the partition member, and a gear pump in which external teeth and internal teeth are relatively eccentrically mounted in the casing. A pump shaft fitted with the internal teeth at an end of the crankshaft opposite to the main shaft, one of which is inserted and fixed in an oil feed passage formed in the pump shaft, and the other is the internal teeth. Elastic in the gap of the fitting part of the pump shaft Is that formed by providing the arranged fixed fueling device cage sandwiched.
【０００９】[0009]
【作用】上述した本発明の技術的手段の作用は、歯車ポ
ンプの内歯と嵌装するポンプ軸の隙間に弾性的に挟まれ
る保持器を設けてあるため圧縮機の運転中に内歯が振動
することが防止され、給油装置の圧縮機運転中における
騒音低下が図れる。The operation of the technical means of the present invention described above is based on the fact that a retainer is provided which is elastically sandwiched in the gap between the internal gear of the gear pump and the pump shaft to be fitted. Vibration is prevented, and noise reduction during operation of the compressor of the oil supply device can be achieved.
【００１０】[0010]
【実施例】本発明の一実施例を、図１、図２および図３
に示す。同図において密閉容器１の内部に圧縮機構２を
駆動する電動機３の固定子４が固定され、この電動機３
の回転子５に圧縮機構２を駆動するクランク軸６が結合
され、このクランク軸６の回転軸はほぼ水平に配置され
ている。また密閉容器１の下部が潤滑油溜７となってい
る。FIG. 1, FIG. 2 and FIG.
Shown in In FIG. 1, a stator 4 of an electric motor 3 for driving a compression mechanism 2 is fixed inside a closed container 1.
A crankshaft 6 for driving the compression mechanism 2 is connected to the rotor 5 of this embodiment, and the rotation axis of the crankshaft 6 is disposed substantially horizontally. The lower part of the sealed container 1 is a lubricating oil reservoir 7.
【００１１】圧縮機構２は、固定枠体８に固定渦巻羽根
９を一体に形成した固定渦巻羽根部材１０と、この固定
渦巻羽根９と噛み合って複数個の圧縮作業空間１４を形
成する旋回渦巻羽根１１を旋回鏡板１２の上に形成した
旋回渦巻羽根部材１３の自転を防止して旋回のみをさせ
る自転拘束部材１５とを有し、この旋回鏡板１２の旋回
渦巻羽根１１とは反対側に設けた旋回駆動軸１６はクラ
ンク軸６の一端に形成した主軸１７の内方に設けられた
偏心軸受１８に嵌入され、このクランク軸６はその主軸
１７を支承する主軸受１９を有する主軸受部材２０と、
主軸１７とは反対側のクランク軸６の軸部を支承する副
軸受２２を有する隔壁部材２１で支持されている。この
隔壁部材２１は前記密閉容器１の内壁に固定されてお
り、前記副軸受２２は前記隔壁部材２１に設けられた取
付孔２３に配設固定されている。またこの隔壁部材２１
には前記取付孔２３に嵌合挿入する凸部２４を有するケ
ーシング２５とこのケーシング２５に外歯２６と内歯２
７が相対的に偏心回転可能に装着された歯車ポンプ２８
と、前記クランク軸６の主軸１７とは反対側の端部２９
に前記内歯２７と嵌装するポンプ軸３０と、一方が前記
ポンプ軸３０内に形成された送油路３１に挿入固定され
るとともに他方が前記内歯２７と前記ポンプ軸３０の嵌
装部の隙間に弾性的に挟まれる保持器３２で構成した給
油装置３３が設けられてある。The compression mechanism 2 includes a fixed spiral blade member 10 integrally formed with a fixed spiral blade 9 on a fixed frame body 8, and a swirling spiral blade that meshes with the fixed spiral blade 9 to form a plurality of compression working spaces 14. A rotation restricting member 15 formed on the revolving head plate 12 for preventing the revolving spiral blade member 13 from rotating and performing only revolving, and provided on the opposite side of the revolving spiral blade 11 of the revolving head plate 12. The turning drive shaft 16 is fitted into an eccentric bearing 18 provided inside a main shaft 17 formed at one end of the crankshaft 6. The crankshaft 6 includes a main bearing member 20 having a main bearing 19 supporting the main shaft 17. ,
The main shaft 17 is supported by a partition member 21 having an auxiliary bearing 22 for supporting the shaft portion of the crankshaft 6 on the opposite side. The partition member 21 is fixed to the inner wall of the closed casing 1, and the auxiliary bearing 22 is disposed and fixed in a mounting hole 23 provided in the partition member 21. Also, this partition member 21
A casing 25 having a convex portion 24 fitted and inserted into the mounting hole 23, and external teeth 26 and internal teeth 2
Gear pump 28 mounted so as to be relatively eccentrically rotatable
And an end 29 of the crankshaft 6 opposite to the main shaft 17.
A pump shaft 30 fitted with the internal teeth 27, one of which is inserted and fixed in an oil feed passage 31 formed in the pump shaft 30, and the other of which is a fitting portion between the internal teeth 27 and the pump shaft 30. Is provided with a lubricating device 33 constituted by a retainer 32 elastically sandwiched in the gap.
【００１２】また、前記ケーシング２５には吸入口３４
が形成され前記潤滑油溜７に没入してあり、前記給油装
置３３により吸入された潤滑油が、前記送油路３１を通
して各部に給油される。The casing 25 has a suction port 34.
Is formed and is immersed in the lubricating oil reservoir 7, and the lubricating oil sucked by the lubricating device 33 is supplied to each part through the oil supply path 31.
【００１３】[0013]
【発明の効果】密閉容器の内部に、電動機と、この電動
機で駆動する圧縮機構と、底部に潤滑油溜を配設し、前
記圧縮機構を前記電動機の回転力を伝えるクランク軸と
このクランク軸に形成した主軸を支承する主軸受を有す
る主軸受部材とを含んで構成し、前記クランク軸の主軸
とは反対側の端部を支承する副軸受を前記密閉容器の内
壁に固定した隔壁部材に配設固定し、この隔壁部材にケ
ーシングと、このケーシング内に外歯と内歯が相対的に
偏心回転可能に装着された歯車ポンプと、前記クランク
軸の主軸とは反対側の端部に前記内歯と嵌装するポンプ
軸と、一方が前記ポンプ軸内に形成された送油路に挿入
固定されるとともに他方が前記内歯と前記ポンプ軸の嵌
装部の隙間に弾性的に挟まれる保持器を配設固定した給
油装置を設けたもので、歯車ポンプの内歯と嵌装するポ
ンプ軸の隙間に弾性的に挟まれる保持器を設けてあるた
め、潤滑油が低粘度状態で使用される圧縮機運転中、特
に圧縮機の寝込み始動時や除霜運転時等に潤滑油溜り中
に冷媒の気泡が発生し、トロコイドポンブに気泡を噛み
込んだ場合にも圧縮機運転中に内歯が振動することが防
止され、給油装置の圧縮機運転中における騒音低下が図
れるという利点を有することである。According to the present invention, an electric motor, a compression mechanism driven by the electric motor, a lubricating oil reservoir are provided at the bottom in the closed container, and the compression mechanism transmits a rotational force of the electric motor to the crankshaft and the crankshaft. And a main bearing member having a main bearing for supporting the main shaft formed in a partition member fixed to an inner wall of the closed container with a sub-bearing for supporting an end of the crankshaft opposite to the main shaft. A casing fixed to the partition member, a gear pump in which external teeth and internal teeth are relatively eccentrically mounted in the casing, and a gear pump having an end opposite to the main shaft of the crankshaft. One of the pump shafts fitted with the internal teeth is inserted and fixed in an oil supply passage formed in the pump shaft, and the other is elastically sandwiched in a gap between the internal teeth and the fitting portion of the pump shaft. An oil supply device with a cage installed and fixed Since the retainer elastically sandwiched in the gap between the internal gear of the gear pump and the pump shaft to be fitted is provided, the lubricating oil is used in a low viscosity state. During the operation of the compressor, the internal teeth are prevented from vibrating during the operation of the compressor even when bubbles of the refrigerant are generated in the lubricating oil reservoir at the time of defrosting operation or when the bubbles are caught in the trochoid pump. This has the advantage that noise can be reduced during machine operation.
【図１】本発明の一実施例を示すスクロール圧縮機の断
面図FIG. 1 is a cross-sectional view of a scroll compressor showing one embodiment of the present invention.
【図２】本発明の保持器の組込み状況を示す図１の要部
断面図FIG. 2 is a sectional view of a main part of FIG. 1 showing a state of assembling the cage of the present invention.
【図３】本発明の保持器の斜視図FIG. 3 is a perspective view of the retainer of the present invention.
【図４】従来の圧縮機の断面図FIG. 4 is a sectional view of a conventional compressor.
１ 密閉容器 ２ 圧縮機構 ３ 電動機 ６ クランク軸 ７ 潤滑油溜 １７ 主軸 １９ 主軸受 ２０ 主軸受部材 ２１ 隔壁部材 ２２ 副軸受 ２５ ケーシング ２６ 外歯 ２７ 内歯 ２８ 歯車ポンプ ２９ 端部 ３０ ポンプ軸 ３１ 送油路 ３２ 保持器 ３３ 給油装置 DESCRIPTION OF SYMBOLS 1 Closed container 2 Compression mechanism 3 Electric motor 6 Crankshaft 7 Lubricating oil reservoir 17 Main shaft 19 Main bearing 20 Main bearing member 21 Partition member 22 Secondary bearing 25 Casing 26 External teeth 27 Internal teeth 28 Gear pump 29 End part 30 Pump shaft 31 Oil feed Road 32 Cage 33 Refueling device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 河原 定夫 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 山本 修一 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 佐野 潔 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭59−60092（ＪＰ，Ａ) 特開 平２−27186（ＪＰ，Ａ) 特開 平２−86972（ＪＰ，Ａ) 実開 平３−122287（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F04C 29/02 311 F04C 2/10 341 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Sadao Kawahara 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Shuichi Yamamoto 1006 Odaka Kadoma Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Kiyoshi Sano 1006 Kazuma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-59-60092 (JP, A) JP-A-2-27186 (JP, A) JP-A-2-86972 (JP, A) JP-A-3-122287 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F04C 29/02 311 F04C 2/10 341
Claims (1)
動機で駆動する圧縮機構を配設するとともに、前記密閉
容器底部に潤滑油溜を配設し、前記圧縮機構を前記電動
機の回転力を伝えるクランク軸とこのクランク軸に形成
した主軸を支承する主軸受を有する主軸受部材とを含ん
で構成し、前記クランク軸の主軸とは反対側の端部を支
承する副軸受を前記密閉容器の内壁に固定した隔壁部材
に配設固定し、この隔壁部材に配設固定するケーシング
と、このケーシング内に外歯と内歯が相対的に偏心回転
可能に装着された歯車ポンプと、前記クランク軸の主軸
とは反対側の端部に前記内歯と嵌装するポンプ軸と、一
方が前記ポンプ軸内に形成された送油路に挿入固定され
るとともに他方が前記内歯と前記ポンプ軸の嵌装部の隙
間に弾性的に挟まれる保持器を配設固定した給油装置を
設けてなる密閉型圧縮機。An electric motor and a compression mechanism driven by the electric motor are disposed inside the closed container, and a lubricating oil reservoir is disposed at the bottom of the closed container, and the compression mechanism controls the rotational force of the electric motor. And a main bearing member having a main bearing for supporting the main shaft formed on the crankshaft, and a sub-bearing for supporting an end of the crankshaft opposite to the main shaft is provided on the closed container. A casing fixed to the partition member fixed to the inner wall and fixed to the partition member; a gear pump in which the external teeth and the internal teeth are relatively eccentrically mounted in the casing; A pump shaft fitted with the internal teeth at the end opposite to the main shaft, one of which is inserted and fixed in an oil feed passage formed in the pump shaft, and the other is formed of the internal teeth and the pump shaft. Elastically sandwiched in the gap between the fittings Hermetic compressor comprising providing the arranged fixed fueling device retainer that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30430692A JP3147547B2 (en) | 1992-11-16 | 1992-11-16 | Hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30430692A JP3147547B2 (en) | 1992-11-16 | 1992-11-16 | Hermetic compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06147177A JPH06147177A (en) | 1994-05-27 |
| JP3147547B2 true JP3147547B2 (en) | 2001-03-19 |
Family
ID=17931446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30430692A Expired - Fee Related JP3147547B2 (en) | 1992-11-16 | 1992-11-16 | Hermetic compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3147547B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0987437B1 (en) * | 1998-09-15 | 2003-06-18 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Internal gear pump |
| KR100724387B1 (en) * | 2005-09-28 | 2007-06-04 | 엘지전자 주식회사 | Oil pumping apparatus for enclosed compressor |
| KR100688671B1 (en) * | 2005-11-30 | 2007-03-02 | 엘지전자 주식회사 | Noise reducing structure for scroll compressor |
-
1992
- 1992-11-16 JP JP30430692A patent/JP3147547B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06147177A (en) | 1994-05-27 |
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