JPS59194197A - Oil feeder - Google Patents

Oil feeder

Info

Publication number
JPS59194197A
JPS59194197A JP24690383A JP24690383A JPS59194197A JP S59194197 A JPS59194197 A JP S59194197A JP 24690383 A JP24690383 A JP 24690383A JP 24690383 A JP24690383 A JP 24690383A JP S59194197 A JPS59194197 A JP S59194197A
Authority
JP
Japan
Prior art keywords
shaft
oil
lubricating oil
spring
vertical hole
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
Application number
JP24690383A
Other languages
Japanese (ja)
Inventor
Mitsuru Murata
充 村田
Shin Ishihara
伸 石原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP24690383A priority Critical patent/JPS59194197A/en
Publication of JPS59194197A publication Critical patent/JPS59194197A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication
    • F16N7/366—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication with feed by pumping action of a vertical shaft of the machine

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)

Abstract

PURPOSE:To prevent the seizure and breakage of a compressor shaft, by tapering the front end portion of a helical spring and immersing the front end portion in stored lubricating oil to supply the oil by the spring. CONSTITUTION:When a shaft 4 is rotated, lubricating oil 12 is pushed up along the spiral inside of a closely fitted helical spring 22 to horizontal holes 16, 17, 18 and supplied to clearances 19, 20, 21. If the inside diameter A of the spring were larger than that of a vertical hole 14, the oil 12 would collide against the lower end 25 of the shaft 4 and the oil supplying force would be greatly decreased. In fact, the inside diameter A and that of the vertical hole 14 are almost equal to each other so that the lubricating oil 12 is smoothly pushed up. About 1.3 to 2 times as much oil supply power as a conventional lubricating pump 13 is obtained by the closely fitted helical spring 22. As a result, the shaft 4 does not seize on an upper bearing 9, a roller 6 and a lower bearing 10 during the operation of an enclosed compressor 1.

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装置に関する本のである。[Detailed description of the invention] [Field of application of the invention] The present invention relates to an oil supply device for a hermetic compressor.

〔発明の背景〕[Background of the invention]

以下図面に従い従来の給油装置を説明する。 A conventional oil supply device will be described below with reference to the drawings.

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には給油装置１３が圧入され、
シャフト４の下面２５よシ突出て潤滑油１２の中に浸漬
されている。FIG. 1 is a longitudinal sectional view of the main parts of the 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. The oil supply device 13 is press-fitted into the vertical hole 14 of the shaft 4,
It protrudes from the lower surface 25 of the shaft 4 and is immersed in the lubricating oil 12.

給油装置１３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１が運転されてシャフト４が
回転すると、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１６′の内壁の傾斜面に沿って上方に押上げられ
る。潤滑油１２は穴１５から湾曲部１６′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１
６，１７．１８に到シ更に遠心力で外側に押出され、そ
れぞれのクリアランス１９．２０．２１に給油される。Since the oil supply device 13 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 smaller and no oil film is formed, and when the hermetic compressor 1 is operated and the shaft 4 rotates, the shaft 4 and the lower bearing caused a burn-in phenomenon. Furthermore, 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
It is pushed upward along the inclined surface of the inner wall of the curved portion 16'. Lubricating oil 12 is supplied into the curved portion 16' through the hole 15. The pushed up lubricating oil 12 flows into the side hole 1 of the shaft 4.
6, 17, and 18 are further pushed outward by centrifugal force, and oil is supplied to the respective clearances 19, 20, and 21.

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
。If the amount of oil supplied is small, the shaft 4, upper bearing 9, roller 6, or lower bearing 10 may seize.

給油量を増加するためには縦孔１４の内径および給油装
置１６の内径を大きくする必要がある。犬きくすると縦
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の曲は強度が低下する。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 device 16. If the angle 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ｔ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事故に到った。When the hermetic compressor was operated in a state where the bending strength was low, a serious accident occurred in which the shaft 4 broke.

〔発明の目的〕[Purpose of the invention]

本発明は係る欠点を解消するもので、コイルバネを利用
して給油する本のである。The present invention solves these drawbacks and is a book that uses a coil spring to supply oil.

〔発明の概要〕[Summary of the invention]

コイルバネの先端部をテーパ状とするとともに、この先
端部を貯溜した潤滑油中に浸漬されたものである。The tip of the coil spring is tapered and immersed in lubricating oil.

〔発明の実施例〕[Embodiments of the invention]

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。密着コイルバネ乙λの内径Ａは縦孔１４
の内径とほぼ同一寸法である。密着コイルバネ７１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、３　。A close coil spring 22 is used instead of the oil supply pump 13. The inner diameter A of the close coil spring Otsu λ is the vertical hole 14
The dimensions are almost the same as the inner diameter of. Above the close coil spring 71, there is a press-fitting part 22a having an inner diameter B larger than the inner diameter A and slightly smaller than the outer diameter of the stepped part 24 of the shaft 4, and the stepped part 24,3.

の外径にスプリング作用を利用して係止されている。It is locked on the outer diameter of the body using a spring action.

潤滑油１２は、シャフト４が回転すると密着コイルバネ
Ｕのスパイラル状の内壁に沿って押上げられ、横穴１６
．１７．１８に到りクリアランス１９．２０．２１に給
油される。このとき、内径Ａが縦孔１４の内径より太き
いとシャフト４の下面２５に衝突して給油力がいちじる
しく低下するが、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１６よ
り、本発明の密着コイルバネ２２を使用した方が約１．
６〜２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１０は焼付き現象を引起こすことはない。When the shaft 4 rotates, the lubricating oil 12 is pushed up along the spiral inner wall of the tight coil spring U, and flows into the side hole 16.
．． Reached 17.18 and refueled at clearance 19.20.21. At this time, if the inner diameter A is larger than the inner diameter of the vertical hole 14, it will collide with the lower surface 25 of the shaft 4 and the oil supply force will be significantly reduced. However, in the present invention, the inner diameter A and the inner diameter of the vertical hole 14 are approximately the same size. Therefore, the lubricating oil 12 is smoothly pushed up. As a result, it is found that using the close coil spring 22 of the present invention is approximately 1.
The oil supply capacity is increased by 6 to 2 times, and even when the hermetic compressor is operated, the shaft 4, upper bearing 9, roller 6, or lower bearing 10 will not seize.

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。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.

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１９は小さくはなら表い。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、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
わえたものである。第２図の密着コイルバネＵの下部の
断面形状を几形状にした。湾曲部２５ｂを有し、その抽
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υである。Further, since the press-fit portion 22a is subjected to a force in the direction of reducing the outer diameter of the shaft 4, the outer diameter of the shaft 4 does not increase, so the clearance 19 is not reduced. Therefore, the lower bearing 10 and the shaft 4 will not cause any seizure phenomenon. FIG. 3 is a longitudinal sectional view of the main parts of a hermetic compressor 1 which is an embodiment of the present invention, and shows further improvements. The cross-sectional shape of the lower part of the tight coil spring U shown in FIG. 2 is made into a box shape. It has a curved part 25b, and its bolt-in part 23a is a close coil spring υ, which is the same as the press-fit part 22a in FIG.

〔発明の効果〕〔Effect of the invention〕

本発明は以上の如く、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、密着され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１１を使用した場合より更に大き
くなり、密閉形圧縮機１が運転されても焼付き現象を引
起こすことはない６また、湾曲部２３ｂの断面形状はＲ
形状であるがこの部分がテーバ状の形状であっても効果
は同じである。As described above, in the present invention, since the curved part 23b has almost the same shape as the curved part 13 in FIG. Since the oil 12 is pushed up, the amount of oil supplied becomes even larger than when using the close-fitting coil spring 11 shown in FIG. The cross-sectional shape of the portion 23b is R.
The effect is the same even if this part has a tapered shape.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は密閉形圧縮機１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１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１
の主要部の縦断面図である。 １・・・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・・・下ベアリング、１１・・・容器、１２
・・・潤滑油、１３・・・給油ポンプ、１４・・・縦孔
、１５・・・穴、１６・・・横穴、１７・・・横穴、１
８・・・横穴、１９・・・クリアランス、２０・・・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、１６・・・湾曲部、２２ａ・・
・圧入部、２３ａ・・・圧入部、２３ｂ・・・湾曲部、
Ａ・・・内径、Ｂ・・・内径。FIG. 1 is a longitudinal sectional view of the main parts of the hermetic compressor 1, FIG. 2 is a longitudinal sectional view of the main parts of the hermetic compressor 1, which is an embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of the main parts of the hermetic compressor 1, which is an embodiment of the present invention. Hermetic compressor 1 as an example
FIG. DESCRIPTION OF SYMBOLS 1... Hermetic compressor, 2... Cylinder, 3... Compression chamber, 4... Shaft, 5... Eccentric part, 6... Roller, 7... Groove, 8...・Vane, 9... Upper bearing, 10... Lower bearing, 11... Container, 12
...Lubricating oil, 13...Oil supply pump, 14...Vertical hole, 15...Hole, 16...Horizontal hole, 17...Horizontal hole, 1
8... Horizontal hole, 19... Clearance, 20... Clearance, 21... Clearance, 22... Close coil spring, 23... Close coil spring, 24... Stepped portion, 25... Lower surface, 16...Curved portion, 22a...
・Press-fitting part, 23a... Press-fitting part, 23b... Curved part,
A... Inner diameter, B... Inner diameter.

Claims (1)

【特許請求の範囲】[Claims] コイルバネの先端部をテーパ状とするとともにこの先端
部を貯溜した潤滑油中に浸漬されたことを特徴とする給
油装置。A lubricating device characterized in that a coil spring has a tapered tip and is immersed in lubricating oil stored therein.
JP24690383A 1983-12-28 1983-12-28 Oil feeder Pending JPS59194197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24690383A JPS59194197A (en) 1983-12-28 1983-12-28 Oil feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24690383A JPS59194197A (en) 1983-12-28 1983-12-28 Oil feeder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP4221883A Division JPS58174181A (en) 1983-03-16 1983-03-16 Closed compressor

Publications (1)

Publication Number Publication Date
JPS59194197A true JPS59194197A (en) 1984-11-02

Family

ID=17155455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24690383A Pending JPS59194197A (en) 1983-12-28 1983-12-28 Oil feeder

Country Status (1)

Country Link
JP (1) JPS59194197A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106523325A (en) * 2016-11-26 2017-03-22 珠海凌达压缩机有限公司 Lubricating piece and compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106523325A (en) * 2016-11-26 2017-03-22 珠海凌达压缩机有限公司 Lubricating piece and compressor
CN106523325B (en) * 2016-11-26 2019-08-13 合肥凌达压缩机有限公司 Lubricate part and compressor

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