JPH081194U - Horizontal rotary compressor - Google Patents
Horizontal rotary compressorInfo
- Publication number
- JPH081194U JPH081194U JP21396U JP21396U JPH081194U JP H081194 U JPH081194 U JP H081194U JP 21396 U JP21396 U JP 21396U JP 21396 U JP21396 U JP 21396U JP H081194 U JPH081194 U JP H081194U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- bearing
- closed container
- rotary compressor
- rotary
- 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
Abstract
(57)【要約】
【課題】 オイルレベルの低下した場合にも、確実に軸
受部に油膜の形成できる横型回転圧縮機を提供する。
【解決手段】 シリンダーの開口を閉塞する軸受兼用枠
体の軸受部の内周面に回転軸の軸心より低い位置にオイ
ル溜用凹所を設ける。密閉容器内のオイルレベルが低下
して軸受部へのオイル供給が一時的に困難となった場合
にも、しばらくの間はオイル溜用凹所の溜オイルによる
軸受部の油膜状態は正常に維持されるようになる。
(57) Abstract: [PROBLEMS] To provide a horizontal rotary compressor capable of reliably forming an oil film on a bearing portion even when the oil level decreases. SOLUTION: An oil reservoir recess is provided at a position lower than the axial center of the rotating shaft on the inner peripheral surface of the bearing portion of the bearing / frame that closes the opening of the cylinder. Even if it is temporarily difficult to supply oil to the bearing due to the low oil level in the closed container, the oil film in the bearing is kept normal for a while due to the accumulated oil in the oil reservoir recess. Will be done.
Description
【0001】[0001]
本考案は、密閉容器の貯溜オイルを吸上げパイプを介して軸受け部に供給して なる横型回転圧縮機に関する。 The present invention relates to a horizontal rotary compressor in which stored oil in a closed container is supplied to a bearing portion via a suction pipe.
【0002】[0002]
本考案に先行する実開昭62-61985号公報に記載された従来の横型回転圧縮機で は、回転軸が横方向に配置されているため、この回転軸に設けられたオイルポン プの吸込口も横方向で開口し直接、密閉容器の貯溜オイルに挿入できず、この吸 込口と貯溜オイルとの間に吸上げパイプを介在させている。 In the conventional horizontal rotary compressor described in Japanese Utility Model Laid-Open No. 62-61985, which precedes the present invention, since the rotary shaft is arranged in the lateral direction, the suction port of the oil pump provided on this rotary shaft is installed. Also has a lateral opening and cannot be directly inserted into the stored oil in the closed container, and a suction pipe is interposed between this suction port and the stored oil.
【0003】 しかしながら、この種横型回転圧縮機では、前記貯溜オイルのオイルレベルが 低下した場合、前記吸上げパイプの吸上げ高低差が大きくなり、軸受部への給油 量は極端に減少更には皆無となり軸受部の油膜形成が困難となり摩耗の生じる欠 点がある。However, in this type of horizontal rotary compressor, when the oil level of the stored oil is lowered, the suction height difference of the suction pipe is increased, and the amount of oil supplied to the bearing is extremely reduced. It becomes difficult to form an oil film on the bearing, and there is a point that wear occurs.
【0004】[0004]
本考案は前述の欠点を解消し、オイルレベルの低下した場合にも、確実に軸受 部に油膜の形成できる横型回転圧縮機を提供するものである。 The present invention solves the above-mentioned drawbacks and provides a horizontal rotary compressor capable of reliably forming an oil film on the bearing portion even when the oil level is lowered.
【0005】[0005]
本考案は、密閉容器の内部に電動要素と回転圧縮要素を配設し前記電動要素の 駆動力を水平方向に配置した回転軸を介して前記回転圧縮要素に伝達すると共に 、この回転圧縮要素のシリンダーの両端開口を軸受け兼用枠体で閉塞し、この軸 受け兼用枠体の軸受部に、前記密閉容器の貯溜オイルの吸上げパイプ及び前記回 転軸のオイルポンプを介してオイルを供給してなるものであって、前記軸受部の 内周面に回転軸の軸心より低い位置にオイル溜用凹所を設けてなるものである。 According to the present invention, an electric element and a rotary compression element are arranged inside a closed container, and the driving force of the electric element is transmitted to the rotary compression element through a rotary shaft arranged in a horizontal direction. The openings on both ends of the cylinder are closed by a frame that also serves as a bearing, and oil is supplied to the bearing portion of the frame that also serves as a bearing via a suction pipe for the stored oil in the closed container and an oil pump for the rotating shaft. In addition, an oil reservoir recess is provided at a position lower than the axis of the rotary shaft on the inner peripheral surface of the bearing portion.
【0006】[0006]
本考案によれば、密閉容器内のオイルレベルが低下して軸受部へのオイル供給 が一時的に困難となった場合にも、しばらくの間はオイル溜用凹所の溜オイルに よる軸受部の油膜状態は正常に維持されるようになる。 According to the present invention, even when the oil level in the closed container is lowered and the oil supply to the bearing part becomes temporarily difficult, the bearing part is kept by the oil collected in the oil sump recess for a while. The oil film state will be maintained normally.
【0007】[0007]
次に本考案の一実施例について説明する。 Next, an embodiment of the present invention will be described.
【0008】 第1図において、1は底部に潤滑油オイル2の貯溜された密閉容器、3は密閉 容器1に内設された電動要素、4は電動要素3にて駆動される回転圧縮要素で、 水平方向に配置した回転軸5を介して駆動力が伝達される。電動要素3は、固定 子6と、この固定子6の内側にエアギャップ7を有して挿着された回転子8とで 構成されている。固定子6は、両端に突出したコイルエンド9を有する巻線10を 内蔵すると共に、外周部に通路11を形成しこの通路11を通して潤滑オイル2を回 転圧縮要素4側へ導くように構成されている。また回転子8はその一端面から間 隔をおいて円板12を配置し、この円板12が回転することで後述のように冷媒を案 内するように構成されている。In FIG. 1, 1 is a closed container in which lubricating oil 2 is stored at the bottom, 3 is an electric element provided inside the closed container 1, and 4 is a rotary compression element driven by the electric element 3. The driving force is transmitted via the rotary shaft 5 arranged in the horizontal direction. The electric element 3 is composed of a stator 6 and a rotor 8 inserted inside the stator 6 with an air gap 7. The stator 6 has a winding 10 having coil ends 9 projecting from both ends, and a passage 11 is formed in the outer periphery of the stator 6 to guide the lubricating oil 2 to the rotary compression element 4 side through the passage 11. ing. Further, the rotor 8 has a disk 12 arranged at a distance from one end surface thereof, and the disk 12 is configured to rotate so that the refrigerant can be taken into consideration as described later.
【0009】 回転圧縮要素4は、密閉容器1の外部から導入管(図示しない)を通して冷媒 の導入されるシリンダー13と、該シリンダー13に内設され前記回転軸5の偏心部 14によって回転されるローラ15と、該ローラ15の外周面に圧接してシリンダー室 を高圧室と低圧室に区画する摺動ベーン(図示しない)と、前記シリンダー13の 両端の開口を閉塞する軸受け兼用枠体16,17と、電動要素3側の枠体16に取付け られたマフラー体18と、反電動要素側の枠体17に取付けられた保持カップ体19と 、該保持カップ体19にてこの回転圧縮要素4に保持した吸上げパイプ20とで構成 されている。吸上げパイプ20はその吸入口20aを密閉容器1の内底部に近接した 箇所に配置することでオイル溜のオイル2中に浸漬すると共に、 その送出口20b を回転軸5の中央部に設けたオイルポンプ21に連通している。オイルポンプ21で は、その回転による遠心力にて吸上げパイプ20から潤滑オイル2を吸入して径方 向孔22a,22b,22c等からローラ15の摺動面及び軸受け兼用枠体16,17の軸受け 部16g,17g に供給している。The rotary compression element 4 is rotated by a cylinder 13 into which a refrigerant is introduced from the outside of the closed container 1 through an introduction pipe (not shown), and an eccentric portion 14 of the rotary shaft 5 provided in the cylinder 13. A roller 15; a sliding vane (not shown) that press-contacts the outer peripheral surface of the roller 15 to divide the cylinder chamber into a high pressure chamber and a low pressure chamber; and a bearing / frame 16 that closes the openings at both ends of the cylinder 13. 17, a muffler body 18 attached to the frame 16 on the electric element 3 side, a holding cup body 19 attached to the frame 17 on the non-electric element side, and the rotary compression element 4 with the holding cup body 19. It is composed of a suction pipe 20 which is held at. The suction pipe 20 is immersed in the oil 2 in the oil reservoir by disposing the suction port 20a at a position close to the inner bottom of the closed container 1, and the delivery port 20b is provided at the center of the rotary shaft 5. It communicates with the oil pump 21. In the oil pump 21, the lubricating oil 2 is sucked from the suction pipe 20 by centrifugal force due to the rotation of the oil pump 21, and the sliding surface of the roller 15 and the frame 16/17 serving also as the bearing from the radial holes 22a, 22b, 22c and the like. It is supplied to the bearing parts 16g and 17g.
【0010】 23は軸受け兼用枠体16に設けた吐出孔で、常閉型の吐出弁24で閉塞されると共 にその吐出冷媒はマフラー体18の内部を経てその吐出孔25から吐出されるように なっている。26は密閉容器1の上部に取付けた冷媒の吐出管である。Reference numeral 23 denotes a discharge hole provided in the frame 16 which also serves as a bearing, and when the discharge refrigerant 24 is closed by a normally closed discharge valve 24, the discharged refrigerant is discharged from the discharge hole 25 through the inside of the muffler body 18. It has become like this. Reference numeral 26 is a refrigerant discharge pipe attached to the upper portion of the closed container 1.
【0011】 27,28はボルト29にて密閉容器1に取付けた取付足である。Reference numerals 27 and 28 denote mounting feet mounted on the closed container 1 with bolts 29.
【0012】 而して前記軸受部16g,17gは、その内周面の下部でオイル溜用凹所30,31を設 けてある。オイル溜用凹所30,31は、前記軸受け兼用枠体16,17が鋳造又は鍛造 される際に同時形成され、専用の機械加工工程を不要として簡単に形成される。 オイル溜用凹所30は、具体的には第2図に示すように、断面が半円形状に形成さ れ且つ軸方向と平行に適当長さだけ延長されている。オイル溜用凹所31も、前記 オイル溜用凹所30と同様に構成されている。前記オイル溜用凹所30,31について はその一方しか回転圧縮要素4に設けないものも実施される。The bearing portions 16g and 17g are provided with oil reservoir recesses 30 and 31 at the lower portions of the inner peripheral surfaces thereof. The oil reservoir recesses 30 and 31 are formed at the same time when the bearing / frames 16 and 17 are cast or forged, and can be easily formed without a dedicated machining step. Specifically, as shown in FIG. 2, the oil reservoir recess 30 is formed to have a semicircular cross section and extends by an appropriate length in parallel with the axial direction. The oil sump recess 31 is also configured in the same manner as the oil sump recess 30. Regarding the oil reservoir recesses 30 and 31, only one of them is provided in the rotary compression element 4.
【0013】 前記横型回転圧縮機では、シリンダー13内で圧縮された冷媒は、吐出孔23、吐 出弁24及びマフラー体18の吐出口25から密閉容器1内に吐出され、電動要素3を 冷却してから吐出管26から密閉容器1外に吐出される。また、マフラー体18の吐 出口25から吐出された冷媒の一部は、前記エアギャップ7を通って前記円板12の 中央部に到り、この円板12の回転による遠心力によってコイルエンド9側に振り かけられ巻線10を冷却しつつ固定子3の外周の通路11から回転圧縮要素4側に帰 還して吐出管26から密閉容器1外へ吐出される。In the horizontal rotary compressor, the refrigerant compressed in the cylinder 13 is discharged into the closed container 1 through the discharge hole 23, the discharge valve 24 and the discharge port 25 of the muffler body 18 to cool the electric element 3. Then, it is discharged from the discharge pipe 26 to the outside of the closed container 1. Further, a part of the refrigerant discharged from the discharge port 25 of the muffler body 18 reaches the central portion of the disk 12 through the air gap 7, and the coil end 9 is rotated by the centrifugal force generated by the rotation of the disk 12. It is sprinkled to the side, cools the winding 10, and returns to the rotary compression element 4 side from the passage 11 on the outer periphery of the stator 3 and is discharged from the discharge pipe 26 to the outside of the closed container 1.
【0014】 また前記横型回転圧縮機では、密閉容器1の内部の潤滑オイル2のレベルが低 下して軸受部16g,17gへのオイル供給が一時的に困難となった場合にも、しばら くの間はオイル溜用凹所30,31の溜オイルにより軸受部16g,17gの油膜状態は正 常に維持されるようになる。Further, in the horizontal rotary compressor, even if the level of the lubricating oil 2 inside the closed container 1 is lowered and it becomes temporarily difficult to supply the oil to the bearing portions 16g, 17g, it is not good. During this period, the oil film in the bearings 16g, 17g is normally maintained by the oil stored in the oil reservoir recesses 30, 31.
【0015】[0015]
本考案は以上のように構成したから、密閉容器の内部の潤滑オイルのレベルが 一時的に低下して吸上げパイプのオイルの吸上げ高低差が大きくなり軸受部への オイル供給が困難となった場合にも、しばらくの間はオイル溜用凹所の溜オイル により軸受部の油膜状態は正常に維持されるようになり、従って、横型回転圧縮 機の軸受部の潤滑機能を簡単な構造でアップできる。 Since the present invention is configured as described above, the level of the lubricating oil inside the closed container is temporarily reduced, and the difference in the suction height of the oil in the suction pipe increases, making it difficult to supply oil to the bearing. In this case, for a while, the oil film in the bearing will maintain the normal oil film condition due to the accumulated oil in the oil sump recess.Therefore, the lubrication function of the bearing of the horizontal rotary compressor will be simple. I can upload.
【図1】本考案の一実施例の縦断面図である。FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.
【図2】本考案の一実施例に備えた一部材の拡大斜視図
である。FIG. 2 is an enlarged perspective view of a member provided in an embodiment of the present invention.
1 密閉容器 3 電動要素 5 回転軸 13 シリンダー 16 軸受け兼用枠体 17 軸受け兼用枠体 16g 軸受け部 17g 軸受け部 20 吸上げパイプ 21 オイルポンプ 30 オイル溜用凹所。 31 オイル溜用凹所。 1 Airtight container 3 Electric element 5 Rotating shaft 13 Cylinder 16 Bearing and frame 17 Bearing and frame 16g Bearing 17g Bearing 20 Suction pipe 21 Oil pump 30 Recess for oil sump. 31 Recess for oil sump.
Claims (1)
を配設し、前記電動要素の駆動力を水平方向に配置した
回転軸を介して前記回転圧縮要素に伝達すると共に、こ
の回転圧縮要素のシリンダーの両端開口を軸受け兼用枠
体で閉塞し、この軸受け兼用枠体の軸受部に、前記密閉
容器の貯溜オイルの吸上げパイプ及び前記回転軸のオイ
ルポンプを介してオイルを供給してなるものであって、
前記軸受部の内周面には回転軸の軸心より低い位置にオ
イル溜用凹所を設けたことを特徴とする横型回転圧縮
機。1. An electric element and a rotary compression element are arranged inside a hermetic container, and a driving force of the electric element is transmitted to the rotary compression element via a rotary shaft arranged in a horizontal direction, and the rotary compression element is also transmitted. Both ends of the cylinder of the element are closed by a frame that also serves as a bearing. That is,
A horizontal rotary compressor characterized in that an oil reservoir recess is provided at a position lower than the axis of the rotary shaft on the inner peripheral surface of the bearing portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21396U JPH081194U (en) | 1996-01-29 | 1996-01-29 | Horizontal rotary compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21396U JPH081194U (en) | 1996-01-29 | 1996-01-29 | Horizontal rotary compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH081194U true JPH081194U (en) | 1996-07-30 |
Family
ID=11467688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21396U Pending JPH081194U (en) | 1996-01-29 | 1996-01-29 | Horizontal rotary compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH081194U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009063741A1 (en) * | 2007-11-14 | 2009-05-22 | Daikin Industries, Ltd. | Enclosed compressor |
WO2019244259A1 (en) * | 2018-06-19 | 2019-12-26 | 東芝キヤリア株式会社 | Compressor and refrigeration cycle device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60187790A (en) * | 1984-03-08 | 1985-09-25 | Mitsubishi Electric Corp | Pressure difference oil supplying device for rolling piston type compressor |
-
1996
- 1996-01-29 JP JP21396U patent/JPH081194U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60187790A (en) * | 1984-03-08 | 1985-09-25 | Mitsubishi Electric Corp | Pressure difference oil supplying device for rolling piston type compressor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009063741A1 (en) * | 2007-11-14 | 2009-05-22 | Daikin Industries, Ltd. | Enclosed compressor |
WO2019244259A1 (en) * | 2018-06-19 | 2019-12-26 | 東芝キヤリア株式会社 | Compressor and refrigeration cycle device |
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