JP2746782B2 - Rotary compressor - Google Patents

Rotary compressor

Info

Publication number
JP2746782B2
JP2746782B2 JP3288435A JP28843591A JP2746782B2 JP 2746782 B2 JP2746782 B2 JP 2746782B2 JP 3288435 A JP3288435 A JP 3288435A JP 28843591 A JP28843591 A JP 28843591A JP 2746782 B2 JP2746782 B2 JP 2746782B2
Authority
JP
Japan
Prior art keywords
sliding surface
groove
sub
bearing
discharge cover
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 - Lifetime
Application number
JP3288435A
Other languages
Japanese (ja)
Other versions
JPH05126079A (en
Inventor
慶三 飯田
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
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 Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP3288435A priority Critical patent/JP2746782B2/en
Publication of JPH05126079A publication Critical patent/JPH05126079A/en
Application granted granted Critical
Publication of JP2746782B2 publication Critical patent/JP2746782B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、ロータリ圧縮機に係わ
り、特に軸摺動部の信頼性向上に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary compressor, and more particularly to an improvement in reliability of a shaft sliding portion.

【0002】[0002]

【従来の技術】近年、ロータリ圧縮機(以下、圧縮機と
いう)の信頼性に対する品質向上が要求されている。
2. Description of the Related Art In recent years, there has been a demand for improved quality of a rotary compressor (hereinafter referred to as a compressor) with respect to reliability.

【0003】以下図面を参照しながら、特開昭57−1
46074号公報に示されている従来の圧縮機の一例に
ついて説明する。図5は従来のロータリ圧縮機の側面断
面図で図6はその要部拡大図である。1は密閉容器で密
閉容器1内には、圧縮要素2と電動要素3を備え、前記
圧縮要素2の副軸受け4には給油管5と一体になった吐
出カバー6が圧入されている。7はクランク軸で副軸受
け4の摺動面8上を回転する。9は非摺動面で前記吐出
カバー6を圧入するときのひずみを吸収するために設け
られている。
[0003] Referring to the accompanying drawings,
An example of a conventional compressor disclosed in JP-A-46074 will be described. FIG. 5 is a side sectional view of a conventional rotary compressor, and FIG. 6 is an enlarged view of a main part thereof. Reference numeral 1 denotes an airtight container. The airtight container 1 includes a compression element 2 and an electric element 3. A discharge cover 6 integrated with an oil supply pipe 5 is press-fitted into a sub-bearing 4 of the compression element 2. Reference numeral 7 denotes a crankshaft which rotates on a sliding surface 8 of the sub bearing 4. Reference numeral 9 denotes a non-sliding surface which is provided to absorb distortion when the discharge cover 6 is press-fitted.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来の構成では、吐出カバー6の圧入ひずみを吸収するた
めに、非摺動面9を設けているので摺動面8が十分確保
できず、クランク軸7および摺動面8の磨耗が大きくな
り、信頼性にかけるという課題があった。
However, in the above-mentioned conventional construction, the non-sliding surface 9 is provided to absorb the press-fit distortion of the discharge cover 6, so that the sliding surface 8 cannot be sufficiently secured. There has been a problem that the abrasion of the shaft 7 and the sliding surface 8 is increased and reliability is increased.

【0005】本発明は上記課題に鑑み、クランク軸およ
びその摺動面の磨耗を少なくし、品質のよい圧縮機を提
供するものである。
The present invention has been made in view of the above problems, and has as its object to provide a high-quality compressor in which wear of a crankshaft and its sliding surface is reduced.

【0006】[0006]

【課題を解決するための手段】以上のような課題を解決
するために、本発明の圧縮機は、圧縮要素の副軸受けを
吐出カバー圧入部全周に溝を設けたものである。
In order to solve the above-mentioned problems, a compressor according to the present invention has a sub-bearing of a compression element provided with a groove all around the press-fitting portion of the discharge cover.

【0007】また、さらに、溝の形状はV字形に形成し
たものである。また、さらに、溝の外周部の肉厚は内周
部の肉厚より薄く形成したものである。
Further, the groove is formed in a V-shape. Further, the outer peripheral portion of the groove is formed to be thinner than the inner peripheral portion.

【0008】[0008]

【作用】副軸受けの吐出カバー圧入部全周に溝を設ける
ことにより吐出カバーを圧入した場合、その圧入による
ひずみは溝により吸収される。そのため摺動面のひずみ
がなくなるので非摺動面をなくせることができ、摺動面
を十分確保することができる。
When the discharge cover is press-fitted by providing a groove all around the discharge cover press-fitting portion of the sub-bearing, distortion due to the press-fitting is absorbed by the groove. Therefore, since the distortion of the sliding surface is eliminated, the non-sliding surface can be eliminated, and the sliding surface can be sufficiently secured.

【0009】また、さらに、溝の形状をV字形に形成す
ることにより、摺動面への影響をさらに少なくすること
ができる。
Further, by forming the groove in a V-shape, the influence on the sliding surface can be further reduced.

【0010】また、さらに、溝の外周部の肉厚を内周部
の肉厚より薄くすることにより、摺動面への影響をさら
に少なくすることができる。
Further, by making the thickness of the outer peripheral portion of the groove smaller than that of the inner peripheral portion, the influence on the sliding surface can be further reduced.

【0011】[0011]

【実施例】以下本発明の一実施例の圧縮機について、図
面を参照しながら説明する。なお従来と同一部品につい
ては、同一符号を付して詳細な説明を省略する。図1は
本発明の一実施例における圧縮機の側面断面図であり、
図2はその要部拡大図である。図において、1は密閉容
器で密閉容器1内には、圧縮要素2と電動要素3を備
え、前記圧縮要素2の副軸受け4には給油管5と一体に
なった吐出カバー6が圧入されている。7はクランク軸
で副軸受け4の摺動面8上を回転する。10は副軸受け
4の吐出カバー6の圧入部に設けられた溝である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A compressor according to an embodiment of the present invention will be described below with reference to the drawings. The same parts as those in the related art are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 is a side sectional view of a compressor according to an embodiment of the present invention.
FIG. 2 is an enlarged view of the main part. In the figure, reference numeral 1 denotes a closed container, in which a compression element 2 and an electric element 3 are provided, and a discharge cover 6 integrated with an oil supply pipe 5 is press-fitted into a sub-bearing 4 of the compression element 2. I have. Reference numeral 7 denotes a crankshaft which rotates on a sliding surface 8 of the sub bearing 4. Reference numeral 10 denotes a groove provided at a press-fit portion of the discharge cover 6 of the sub-bearing 4.

【0012】以上のように構成された圧縮機について、
副軸受け4に圧入された吐出カバー6による摺動面8へ
のひずみは溝9により吸収されるため従来摺動面に設け
られた非摺動面をなくすことができ、摺動面を十分確保
することができる。
Regarding the compressor configured as described above,
The strain on the sliding surface 8 due to the discharge cover 6 press-fitted into the sub-bearing 4 is absorbed by the groove 9, so that the non-sliding surface provided on the conventional sliding surface can be eliminated, and the sliding surface is sufficiently secured. can do.

【0013】次に、本発明による圧縮機の第2の実施例
について、図面を参照しながら説明する。なお、第1の
実施例と同一構成については、同一符号を付して詳細な
説明は省略する。
Next, a second embodiment of the compressor according to the present invention will be described with reference to the drawings. The same components as those of the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

【0014】図3は、本発明の第2の実施例による圧縮
機の要部拡大図である。本実施例は第1の実施例の溝を
V字形に形成したものである。
FIG. 3 is an enlarged view of a main part of a compressor according to a second embodiment of the present invention. In this embodiment, the groove of the first embodiment is formed in a V-shape.

【0015】以上のように構成された圧縮機について、
その動作は第1の実施例と同じであるが、溝をV字形に
形成することにより、より摺動面へのひずみの影響を小
さくすることができる。
With respect to the compressor configured as described above,
The operation is the same as that of the first embodiment, but by forming the groove in a V-shape, the influence of the strain on the sliding surface can be further reduced.

【0016】図4は、本発明の第3の実施例による圧縮
機の要部拡大図である。本実施例は第1の実施例の溝に
おいて外周部の肉厚l1を内周部の肉厚l2より小さくし
たものであり、その効果は第2の実施例と同じである。
FIG. 4 is an enlarged view of a main part of a compressor according to a third embodiment of the present invention. This embodiment is obtained by less than the thickness l 2 of the inner peripheral portion of the thickness l 1 of the outer peripheral portion in the groove of the first embodiment, the effect is the same as the second embodiment.

【0017】[0017]

【発明の効果】以上のように本発明は、副軸受けの吐出
カバー圧入部に溝を設けることにより、圧入時の摺動面
へのひずみをなくすことができ、従来の非摺動面をなく
すことができるので摺動面が十分確保できるため、クラ
ンク軸および摺動面の磨耗が低減でき、品質のよい圧縮
機を提供することができる。一方、溝形状をV字形また
は外周部の肉厚を内周部の肉厚より薄くすることによ
り、さらに摺動面への影響を少なくすることができる。
As described above, according to the present invention, by providing a groove in the press-fitting portion of the discharge cover of the sub-bearing, it is possible to eliminate distortion on the sliding surface at the time of press-fitting and to eliminate the conventional non-sliding surface. Therefore, since the sliding surface can be sufficiently secured, the wear of the crankshaft and the sliding surface can be reduced, and a high-quality compressor can be provided. On the other hand, by making the groove shape V-shaped or making the thickness of the outer peripheral portion smaller than the thickness of the inner peripheral portion, the influence on the sliding surface can be further reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明による圧縮機の第1の実施例の側面断面
FIG. 1 is a side sectional view of a first embodiment of a compressor according to the present invention.

【図2】図1の要部拡大断面図FIG. 2 is an enlarged sectional view of a main part of FIG. 1;

【図3】本発明による圧縮機の第2の実施例の要部拡大
断面図
FIG. 3 is an enlarged sectional view of a main part of a second embodiment of the compressor according to the present invention.

【図4】本発明による圧縮機の第3の実施例の要部拡大
断面図
FIG. 4 is an enlarged sectional view of a main part of a third embodiment of the compressor according to the present invention.

【図5】従来の圧縮機の側面断面図FIG. 5 is a side sectional view of a conventional compressor.

【図6】図5の要部拡大断面図FIG. 6 is an enlarged sectional view of a main part of FIG. 5;

【符号の説明】[Explanation of symbols]

1 密閉容器 2 圧縮要素 3 電動要素 4 副軸受け 6 吐出カバー 10 溝 DESCRIPTION OF SYMBOLS 1 Closed container 2 Compression element 3 Electric element 4 Sub-bearing 6 Discharge cover 10 Groove

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 密閉容器内に圧縮要素と電動要素を設
け、前記圧縮要素の副軸受けの吐出カバー圧入部全周に
溝を設けたことを特徴とするロータリ圧縮機。
1. A rotary compressor, comprising: a compression element and an electric element provided in a closed container, and a groove provided around the discharge cover press-fitting portion of a sub-bearing of the compression element.
【請求項2】 溝は、V字型である請求項1記載のロー
タリ圧縮機。
2. The rotary compressor according to claim 1, wherein the groove is V-shaped.
【請求項3】 密閉容器内に圧縮要素と電動要素を設
け、前記圧縮要素の副軸受けの吐出カバー圧入部全周に
溝を設け、溝より外周部の肉厚は、内周部の肉厚より薄
く形成されたことを特徴とするロータリ圧縮機。
3. A compression element and an electric element are provided in an airtight container, and a groove is provided all around the discharge cover press-fitting portion of the sub-bearing of the compression element. A rotary compressor characterized by being formed thinner.
JP3288435A 1991-11-05 1991-11-05 Rotary compressor Expired - Lifetime JP2746782B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3288435A JP2746782B2 (en) 1991-11-05 1991-11-05 Rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3288435A JP2746782B2 (en) 1991-11-05 1991-11-05 Rotary compressor

Publications (2)

Publication Number Publication Date
JPH05126079A JPH05126079A (en) 1993-05-21
JP2746782B2 true JP2746782B2 (en) 1998-05-06

Family

ID=17730180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3288435A Expired - Lifetime JP2746782B2 (en) 1991-11-05 1991-11-05 Rotary compressor

Country Status (1)

Country Link
JP (1) JP2746782B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7128540B2 (en) * 2001-09-27 2006-10-31 Sanyo Electric Co., Ltd. Refrigeration system having a rotary compressor
JP2014145261A (en) * 2013-01-28 2014-08-14 Mitsubishi Electric Corp Discharge muffler structure and rotary compressor

Also Published As

Publication number Publication date
JPH05126079A (en) 1993-05-21

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