JPS58174181A - Closed compressor - Google Patents
Closed compressorInfo
- Publication number
- JPS58174181A JPS58174181A JP4221883A JP4221883A JPS58174181A JP S58174181 A JPS58174181 A JP S58174181A JP 4221883 A JP4221883 A JP 4221883A JP 4221883 A JP4221883 A JP 4221883A JP S58174181 A JPS58174181 A JP S58174181A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- coil spring
- inner diameter
- outer diameter
- hermetic compressor
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0261—Hermetic compressors with an auxiliary oil pump
-
- 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
- F04C29/028—Means for improving or restricting lubricant flow
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は密閉形圧縮機の給油ポンプに関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an oil supply pump for a hermetic compressor.
従来構造を図面に従い説明すると、第１図は密閉形圧縮
機上の主要部の縦断面図である。シリンダ２に設けられ
た円筒状の圧縮室３の内部にシャフト４の偏心部５に嵌
合されたローラ６が配設され、シリンダ２の溝７にベー
ン８が嵌合されている。上ベアリング９と下ベアリング
１０は、シリンダ２に固定されている。容器１１の下部
には、潤滑油１２が貯溜されている。シャフト４の縦孔
′１４には給油ポンプＩ３が圧入され、シャフト４の下
面２５より突出て潤滑油１２の中に浸漬されている。The conventional structure will be explained with reference to the drawings. FIG. 1 is a longitudinal cross-sectional view of the main parts of a hermetic compressor. A roller 6 fitted into an eccentric portion 5 of a shaft 4 is disposed inside a cylindrical compression chamber 3 provided in the cylinder 2, and a vane 8 is fitted into a groove 7 of the cylinder 2. An upper bearing 9 and a lower bearing 10 are fixed to the cylinder 2. Lubricating oil 12 is stored in the lower part of the container 11. An oil supply pump I3 is press-fitted into the vertical hole '14 of the shaft 4, protrudes from the lower surface 25 of the shaft 4, and is immersed in the lubricating oil 12.
給油ポンプエ３は縦孔１４に圧入されているため、圧入
されている部分のシャフト４の外径は変形して大きくな
る。このためシャフト４の外径と下ベアリング１０の内
径との間のクリアランス１９は小さくなり油膜が形成さ
れなくなって、密閉形圧縮機上が運転されてシャフト４
が回転すると。Since the oil supply pump 3 is press-fitted into the vertical hole 14, the outer diameter of the shaft 4 in the press-fitted portion is deformed and becomes larger. Therefore, the clearance 19 between the outer diameter of the shaft 4 and the inner diameter of the lower bearing 10 becomes small, and no oil film is formed, and the hermetic compressor is operated and the shaft 4
When it rotates.
シャフト４と下ベアリング１０は焼付現象を引起こした
。また、シャフト４が回転すると給油ポンプ１３の下部
の湾曲部１３′の内壁付近の潤滑油１２は、湾曲部１３
’の内壁の傾斜面に沿って上方に着上げられる。潤滑油
１２は穴１５がら湾曲部１３′の内部に補給される。押
上げられた潤滑油１２はシャフト４の横穴１６，１７．
１８に到り更に遠心力で外側に押出され、それぞれのク
リアランスＩ９．２０．２１に給油される。給油量が少
ないと、シャフト４と上ベアリング９．ローラ６゜ある
いは下ベアリング１０は焼付現象を引起こす。The shaft 4 and lower bearing 10 caused a seizure phenomenon. Further, when the shaft 4 rotates, the lubricating oil 12 near the inner wall of the lower curved portion 13' of the oil supply pump 13 is removed from the lower curved portion 13'.
'It is raised upward along the slope of the inner wall of '. Lubricating oil 12 is supplied into the curved portion 13' through the hole 15. The pushed up lubricating oil 12 flows through the horizontal holes 16, 17 .
18, it is further pushed outward by centrifugal force, and oil is supplied to each clearance I9.20.21. If the amount of oil supplied is low, the shaft 4 and upper bearing 9. The roller 6° or the lower bearing 10 causes a seizure phenomenon.
給油量を増加するためには縦孔１４の内径および給油ポ
ンプ１３の内径を大きくする必要がある。In order to increase the amount of oil supplied, it is necessary to increase the inner diameter of the vertical hole 14 and the inner diameter of the oil supply pump 13.
大きくすると縦孔１４とシャフト４の外径の肉厚が薄く
なるのでシャフト４の曲げ強度が低下する。When the diameter is increased, the wall thickness of the vertical hole 14 and the outer diameter of the shaft 4 becomes thinner, and the bending strength of the shaft 4 decreases.
曲げ強度が低下した状態で密閉形圧縮機上が運転される
と、シャフト４が折損するという重大な１１「故に到っ
た。If the hermetic compressor is operated with reduced bending strength, the shaft 4 will break, which is a serious problem.
本発明は係る欠点を解消するものである。 The present invention overcomes these drawbacks.
□
〔発明の概要〕
本発明は円筒形に成形された内径が、シャフトの縦孔の
内径とほぼ等しい円筒部と、シャフトの外径にスプリン
グ作用で係止される係止部とからなる密着コイルバネを
シャフトの外径に係止したことを特徴とする密閉形圧縮
機。□ [Summary of the Invention] The present invention is a cylindrical part whose inner diameter is approximately equal to the inner diameter of the vertical hole of the shaft, and a locking part which is locked to the outer diameter of the shaft by a spring action. A hermetic compressor characterized by a coil spring fixed to the outer diameter of the shaft.
第２図は本発明の一実施例を表わす密閉形圧縮機１の主
要部の縦断面図である。給油ポンプ１３の代わりに密着
コイルバネ２２を使用するものである。密着コイルバネ
Ｕの内・径Ａは縦孔１４の内径とほぼ同一寸法である。FIG. 2 is a longitudinal sectional view of the main parts of a hermetic compressor 1 representing an embodiment of the present invention. A close coil spring 22 is used instead of the oil supply pump 13. The inner diameter A of the close coil spring U is approximately the same as the inner diameter of the vertical hole 14.
密着コイルバネこの上方には内径Ａより大きくシャフト
４の段付部２４の外径よりわずかに小さい内径Ｂを有す
る圧入部２２ａを有し、段付部２４の外径にスプリング
作用を利用して係止されている。The tight coil spring has a press-fitting part 22a above it, which has an inner diameter B that is larger than the inner diameter A and slightly smaller than the outer diameter of the stepped part 24 of the shaft 4, and is engaged with the outer diameter of the stepped part 24 using a spring action. It has been stopped.
潤滑油１２は、シャフト４が回転すると密着コイルバネ
乙工のスパイラル状の内壁に沿って押上げられ、横穴１
６．１７．１８に到りクリアランス１９．２０，２“１
に給油される。このとき、内径Ａが縦孔１４の′＾径よ
り大きいとシャフト４の下２面２５に衝突して給油力が
いちじるしく低下する。When the shaft 4 rotates, the lubricating oil 12 is pushed up along the spiral-shaped inner wall of the tight coil spring holder, and the lubricating oil 12 is pushed up into the side hole 1.
As of 6.17.18, clearance 19.20, 2"1
will be refueled. At this time, if the inner diameter A is larger than the diameter of the vertical hole 14, it will collide with the lower two surfaces 25 of the shaft 4, and the oil supply force will be significantly reduced.
本発明では内径Ａと縦孔１４の内径の大きさがほぼ同一
寸法であるので、潤滑油１２はスムーズに押上げられる
。その結果、従来の給油ポンプＩ３より１本発明の密着
コイルバネ翻を使用した方が約１．３〜２倍の給油能力
が得られ、密閉形圧縮機上が運転されてもシャフト４と
上ベアリング９、ローラ６あるいは下ベアリング１ｏは
焼付き現象を引起すことはない。また圧入部２２ａはシ
ャフト４の段付部２４の外径にスプリング作用で係止さ
れているのでシャフト４の外径を変形させようとする力
は小さく、変形量は小さい。更に圧入部２２ａは、シャ
フト４の外径を小さくする方向の力が働くためシャフト
４の外径は大きくなることはないので、クリアランス１
９は小さくはならない。このため、下ベアリング１０と
シャフト４は焼付現象を引起こすことはない。第３図は
。In the present invention, since the inner diameter A and the inner diameter of the vertical hole 14 are approximately the same size, the lubricating oil 12 is smoothly pushed up. As a result, compared to the conventional oil supply pump I3, the oil supply capacity of the close coil spring of the present invention is approximately 1.3 to 2 times higher than that of the conventional oil supply pump I3, and even when operating on a hermetic compressor, the shaft 4 and upper bearing 9. The roller 6 or the lower bearing 1o will not cause any seizure phenomenon. Further, since the press-fitting portion 22a is locked to the outer diameter of the stepped portion 24 of the shaft 4 by a spring action, the force that attempts to deform the outer diameter of the shaft 4 is small, and the amount of deformation is small. Furthermore, the press-fit portion 22a has a clearance of 1 because the force acting in the direction of reducing the outer diameter of the shaft 4 does not increase the outer diameter of the shaft 4.
9 cannot become smaller. Therefore, the lower bearing 10 and the shaft 4 will not cause any seizure phenomenon. Figure 3 is.
本発明の一実施例である密閉形圧縮機１の主要部の縦断
面図であり、更に改善を加えたものである。1 is a vertical sectional view of the main parts of a hermetic compressor 1 which is an embodiment of the present invention, and shows further improvements.
第２図の密着コイルバネ２２の下・部の断面形状をＲ形
状にした。湾曲部２３ｂを有し、その地圧入部２３ａは
、第２図の圧入部２２ａと同一である密着コイルバネ日
である。湾曲部２３ｂは、第１図の湾曲部１３′とほぼ
同じ形状であるので、湾曲部１３′の給油能力を有する
ばかりでなく、密着すしたコイルのスパイラル状の内壁
で潤滑油１２が押上げられるので、給油量は第２図の密
着コイルバネ２２を使用した場合より更に大きくなり、
密閉形圧縮機りが運転されても焼付き現象を引起こすこ
とはない。The cross-sectional shape of the lower part of the tight coil spring 22 shown in FIG. 2 is rounded. It has a curved part 23b, and its ground press-in part 23a is a tight coil spring, which is the same as the press-fit part 22a in FIG. Since the curved section 23b has almost the same shape as the curved section 13' shown in FIG. 1, it not only has the lubricating ability of the curved section 13', but also allows the lubricating oil 12 to be pushed up by the spiral inner wall of the coil that is in close contact with the curved section 23b. Therefore, the amount of oil supplied is even larger than when using the close coil spring 22 shown in Fig. 2.
Even if the hermetic compressor is operated, it will not cause seizure phenomenon.
湾曲部２３ｂの断面形状はＲ形状であるがこの部分がテ
ーパ状の形状であっても効果は同じである。Although the cross-sectional shape of the curved portion 23b is rounded, the effect is the same even if this portion has a tapered shape.
第１図は密閉形圧縮機上の主要部の縦断面図、第２図は
本発明の一実施例である密閉形圧縮機上の主要部の縦断
面図、第３図は本発明の一実施例である密閉形圧縮機上
の主要部の縦断面図である。
よ・・・密閉形圧縮機、２・・・シリンダ、３・・・圧
縮室、４・・・シャフト、５・・・偏心部、６・・・ロ
ーラ、７・・・溝。
８・・・ベーン、９・・・上ベアリング、１０・・・下
ヘアリング、１１・・・容器、１２・・・潤滑油、１３
・・・給油ポンプ、１４・・・縦孔、１５・・・穴、１
６・・・横穴、１７・・・横穴、１８・・・横穴、１９
・・・クリアランス、２゜・・・クリアランス、２１・
・・クリアランス、２２・・・密着コイルバネ、２３
・・・密着コイルバネ、２４・・・段付部、２５・・・
下面、１３′・・・湾曲部、２２ａ・・・圧入部、２３
ａ・・・圧入部、２３ｂ・・・湾曲部、Ａ・・・内径、
Ｂ・・・内径。
第１図Fig. 1 is a longitudinal cross-sectional view of the main parts of a hermetic compressor, Fig. 2 is a longitudinal cross-sectional view of the main parts of a hermetic compressor according to an embodiment of the present invention, and Fig. 3 is a longitudinal cross-sectional view of main parts of a hermetic compressor according to an embodiment of the present invention. FIG. 2 is a vertical cross-sectional view of the main parts of the hermetic compressor according to the embodiment. Yo...Hermetic compressor, 2...Cylinder, 3...Compression chamber, 4...Shaft, 5...Eccentric part, 6...Roller, 7...Groove. 8... Vane, 9... Upper bearing, 10... Lower hair ring, 11... Container, 12... Lubricating oil, 13
...Oil supply pump, 14...Vertical hole, 15...Hole, 1
6...Horizontal hole, 17...Horizontal hole, 18...Horizontal hole, 19
...Clearance, 2゜...Clearance, 21.
... Clearance, 22 ... Close coil spring, 23
...Tight coil spring, 24...Stepped part, 25...
Lower surface, 13'...Curved part, 22a...Press-fitting part, 23
a... Press-fitting part, 23b... Curved part, A... Inner diameter,
B...inner diameter. Figure 1
Claims (1)
径とほぼ等しい円筒部と、シャフトの外径にスプリング
作用で係止される係止部とからなる密着コイルバネをシ
ャフトの外径に係止したことを特徴とする密閉形圧縮機
、。 ２、密着コイルバネの下部に、断面がＲ形状である湾曲
部を有する特許請求の範囲第１項記載の密閉形圧縮機。 ３、密着コイルバネの下部に、断面がテーパ形状である
テーパ部を有する特許請求の範囲第１項記載の密閉形圧
縮機。[Claims] 1. A close-contact coil spring consisting of a cylindrical portion whose inner diameter is approximately equal to the inner diameter of a vertical hole in the shaft, and a locking portion that is locked to the outer diameter of the shaft by a spring action. A hermetic compressor, characterized in that the is fixed to the outer diameter of the shaft. 2. The hermetic compressor according to claim 1, which has a curved portion having an R-shaped cross section at the lower part of the close coil spring. 3. The hermetic compressor according to claim 1, which has a tapered part having a tapered cross section at the lower part of the close coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4221883A JPS58174181A (en) | 1983-03-16 | 1983-03-16 | Closed compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4221883A JPS58174181A (en) | 1983-03-16 | 1983-03-16 | Closed compressor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24690383A Division JPS59194197A (en) | 1983-12-28 | 1983-12-28 | Oil feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58174181A true JPS58174181A (en) | 1983-10-13 |
Family
ID=12629898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4221883A Pending JPS58174181A (en) | 1983-03-16 | 1983-03-16 | Closed compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58174181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005936A (en) * | 2014-02-18 | 2014-08-27 | 杭州钱江压缩机有限公司 | Oil feeding device of compressor |
-
1983
- 1983-03-16 JP JP4221883A patent/JPS58174181A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005936A (en) * | 2014-02-18 | 2014-08-27 | 杭州钱江压缩机有限公司 | Oil feeding device of compressor |
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