JPH02157487A - Scroll fluid machine - Google Patents

Scroll fluid machine

Info

Publication number
JPH02157487A
JPH02157487A JP63307898A JP30789888A JPH02157487A JP H02157487 A JPH02157487 A JP H02157487A JP 63307898 A JP63307898 A JP 63307898A JP 30789888 A JP30789888 A JP 30789888A JP H02157487 A JPH02157487 A JP H02157487A
Authority
JP
Japan
Prior art keywords
end plate
thermal expansion
scroll
radial direction
outer periphery
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
JP63307898A
Other languages
Japanese (ja)
Inventor
Naoya Morozumi
尚哉 両角
Kanji Sakata
坂田　寛二
Makoto Hayano
早野　誠
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP63307898A priority Critical patent/JPH02157487A/en
Publication of JPH02157487A publication Critical patent/JPH02157487A/en
Pending legal-status Critical Current

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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—Details concerning the base
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/10—Inorganic materials, e.g. metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/20—Inorganic materials, e.g. non-metallic materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE:To restrain the thermal expansion in the radial direction of a revolving scroll, reduce the leakage of a gas, and improve performance and reliability by reinforcing at least the portion including the outer periphery of the end plate of a revolving scroll with an iron group metal member. CONSTITUTION:The outer periphery of the end plate 1b of a revolving scroll body 1 which are integrally formed with an aluminum alloy, the back face of the end plate 1b, and the outer periphery of a boss portion 1c are press fitted into an iron group metal ring body 2 by a means of shrink-age fit, etc. to reinforce the surface. Thereby, the thermal expansion in the radial direction of the end plate 1b and boss portion 1c can be restrained to a degree equal to that of an iron group metal while, at the time of forming a compression mechanism portion by fitting a fixed scroll to laps 1a, the clearance in the radial direction caused by the difference in the degree of thermal expansion can be restrained small. Also, since the back face of the end plate 1b is also reinforce, sliding thereof on a thrust receiver can be made smooth. Thereby, the thermal expansion in the radial direction of the revolving scroll can be restrained, reducing the leakage of a gas while improving performance and reliability.

Description

【発明の詳細な説明】 ［発明の目的コ （産業上の利用分野） この発明は、性能並びに信頼性の向上を計ったスクロー
ル流体機械に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Industrial Field of Application) This invention relates to a scroll fluid machine with improved performance and reliability.

（従来の技術） 従来、アルミ合金製または樹脂製の旋回スクロールは運
転時の熱膨張による伸びが自由な状態にあった。(Prior Art) Conventionally, orbiting scrolls made of aluminum alloy or resin have been in a state where they are free to elongate due to thermal expansion during operation.

（発明が解決しようとする問題点） 上記のように、運転時の温度上昇による熱膨張が、旋回
スクロールでは自由であるのに対し、固定スクロール社
鉄系金属のフレームに固定されているので半径方向′の
熱膨張が押えられ、したがクズ運転時雨スクロール流体
機械のクリアランスが大きくなプガスのリーク量が増大
して性能が低下するという問題があった。(Problems to be Solved by the Invention) As mentioned above, while orbiting scrolls are free to undergo thermal expansion due to temperature rise during operation, fixed scrolls are fixed to a steel metal frame, so the radius Although the thermal expansion in the direction '' was suppressed, there was a problem in that the amount of leakage of gas due to the large clearance of the scroll fluid machine during waste operation increased and the performance deteriorated.

また、鉄系金属のシャフトクランク部の熱膨張に対して
、これに嵌合しクランク軸受部となる旋回スクロールボ
ス部の熱膨張が大きくなるため、クランク軸受部のクリ
アランスが必要以上に大きくなシ、運転時の両スクロー
ルラップ間の半径方向クリアランスが大きくなるため、
ガスのリーク量が大きくなり、性能が低下するという問
題があった０ この発明は上記の問題点を解消するためになされたもの
で、旋回スクロールの半径方向の熱膨張を抑制しガスの
リークを少なくして性能並びに信頼性を向上することの
できるスクロール流体機械を提供することを目的とする
。In addition, with respect to the thermal expansion of the ferrous metal shaft crank part, the thermal expansion of the orbiting scroll boss part that fits into the shaft crank part and becomes the crank bearing part increases, so the clearance of the crank bearing part becomes larger than necessary. , due to the increased radial clearance between both scroll wraps during operation,
There was a problem that the amount of gas leakage increased and the performance decreased.0 This invention was made to solve the above problems, and it suppresses the thermal expansion of the orbiting scroll in the radial direction and reduces the gas leakage. It is an object of the present invention to provide a scroll fluid machine that can improve performance and reliability while reducing the number of parts.

［発明の構成］ （ｉｔ！１題を解決するための手段） 上記の目的を達成するため、この発明は鉄系金属のフレ
ームに固定された固定スクロールとアルミ合金ｊ！ｌＩ
！または樹脂製の旋回スクロールとを備えたスクロール
流体機械において、旋回スクロール鏡板の少くとも外周
を含む徊フを鉄系金属の部材によシ補強したことを特徴
としている。[Structure of the Invention] (Means for Solving IT!1 Problem) In order to achieve the above object, this invention comprises a fixed scroll fixed to a frame made of ferrous metal and an aluminum alloy j! lI
! Alternatively, in a scroll fluid machine equipped with an orbiting scroll made of resin, the scroll fluid machine is characterized in that a side wall including at least the outer periphery of the orbiting scroll end plate is reinforced with a member made of iron-based metal.

（作用） この発明は、旋回スクロールの鏡板外周に例えば鉄系金
属のリングを圧入する等の手段によシ補強しているので
旋回スクロールの半径方向の熱膨張を抑えることができ
るので運転時の両スクロールラップ間のクリアランスが
大きくなることを防ぎ、ガスのリークを減少させて性能
を向上させることができる。(Function) In this invention, the outer periphery of the end plate of the orbiting scroll is reinforced by means such as press-fitting a ring made of iron-based metal, so that thermal expansion in the radial direction of the orbiting scroll can be suppressed. This prevents the clearance between both scroll wraps from becoming large, reducing gas leaks and improving performance.

（実施例） 以下、図面を参照してこの発明の一実施例を説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

添付図面は同実施例の旋回スクロールの断面図であり、
固定スクロールは省略されている。図において１はラッ
プ１１％鏡板１ｂ、クランク軸受となるボス部１ｃをア
ルミ合金によシ一体に形成した旋回スクロール本体であ
る。この本体１に対し、鏡板１ｂの外周、鏡板１ｂの背
面、ボス部１ｃ外周等の表面を鉄系金属のリング体２を
焼き嵌め等の手段によシ圧入嵌合させて表面を補強した
ものである。The attached drawing is a sectional view of the orbiting scroll of the same example,
Fixed scrolling is omitted. In the figure, reference numeral 1 denotes an orbiting scroll main body in which an 11% wrap end plate 1b and a boss portion 1c serving as a crank bearing are integrally formed of aluminum alloy. The surface of the main body 1 is reinforced by fitting a ring body 2 made of ferrous metal to the outer periphery of the end plate 1b, the back surface of the end plate 1b, the outer periphery of the boss portion 1c, etc. by means such as shrink fitting. It is.

これによシ、鏡板１ｂおよびボス部１ｃの半径方向の熱
膨張を鉄系金属と同等に抑えることができる。したがっ
て口承しない固定スクロールとうｙ／を噛合させて圧縮
機構部を構成した場合に熱膨張の違いによる半径方向の
クリアランスを小さく押えることができ、圧縮室からの
ガスのリークの小さい高性能なスクロール流体機械とす
ることができる。As a result, the radial thermal expansion of the end plate 1b and the boss portion 1c can be suppressed to the same level as that of iron-based metals. Therefore, when a compression mechanism is configured by meshing fixed scrolls that are not oral, the radial clearance due to differences in thermal expansion can be kept small, resulting in a high-performance scroll fluid with little gas leakage from the compression chamber. It can be a machine.

また、鏡板１ｂの背面も鉄系金属のリング体２によシ補
強していることによシ、スラスト受けとの間の摺動を円
滑になし得る利点もある。Furthermore, since the back surface of the mirror plate 1b is also reinforced by the ring body 2 made of iron-based metal, there is an advantage that sliding movement between the mirror plate 1b and the thrust receiver can be made smooth.

なお、この発明は上記実施例に限定されるものではなく
要旨を変更しない範囲において種々変形して実施するこ
とができる。上記実施においては鉄系金属部材による旋
回スクロール表面の補強を鏡板の外周、鏡板の裏面並び
にボス部外周に対し１ａ・・・ラップ　　　　１ｂ・・
・鏡板１ぐ・・・ボス部 ２・・・リング体 出願人代理人　弁理士　則　近　憲　佑同　　　宇治　
弘 ぞれ行なうようにしてこの発明を実施することができる
。また旋回スクロール本体はアルミ合金製の場合を示し
たが、これを合成樹脂製とすることもできる。Note that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist. In the above implementation, the surface of the orbiting scroll is reinforced by iron-based metal members on the outer periphery of the end plate, the back surface of the end plate, and the outer periphery of the boss portion 1a...wrap 1b...
・Mirror plate 1...Boss part 2...Ring body Applicant's agent Patent attorney Nori Chika Ken Yudo Uji
The invention can be practiced in any manner. Further, although the case where the orbiting scroll body is made of aluminum alloy is shown, it can also be made of synthetic resin.

［発明の効果コ この発明によれば、旋回スクロールの半径方向の熱膨張
を抑制しガスのリークを少なくして性能並びに信頼性を
向上し得るスクロール流体機械を提供することができる
。[Effects of the Invention] According to the present invention, it is possible to provide a scroll fluid machine that can suppress the radial thermal expansion of the orbiting scroll, reduce gas leakage, and improve performance and reliability.

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

添付図面はこの発明の一実施例の旋回スクロールを抽出
して示す縦断面図である。 １・・・旋回スクロール本体The accompanying drawing is a longitudinal sectional view extracting and showing an orbiting scroll according to an embodiment of the present invention. 1... Orbiting scroll body

Claims (1)

【特許請求の範囲】[Claims] 　鉄系金属のフレームに固定された固定スクロールとア
ルミ合金製または樹脂製の旋回スクロールとを備えたス
クロール流体機械において、旋回スクロール鏡板の外周
を少くとも含む旋回スクロールの部分を鉄系金属の部材
により補強したことを特徴とするスクロール流体機械。In a scroll fluid machine equipped with a fixed scroll fixed to a ferrous metal frame and an orbiting scroll made of aluminum alloy or resin, a portion of the orbiting scroll including at least the outer periphery of the orbiting scroll end plate is made of a ferrous metal member. A scroll fluid machine characterized by reinforcement.
JP63307898A 1988-12-07 1988-12-07 Scroll fluid machine Pending JPH02157487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63307898A JPH02157487A (en) 1988-12-07 1988-12-07 Scroll fluid machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63307898A JPH02157487A (en) 1988-12-07 1988-12-07 Scroll fluid machine

Publications (1)

Publication Number Publication Date
JPH02157487A true JPH02157487A (en) 1990-06-18

Family

ID=17974499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63307898A Pending JPH02157487A (en) 1988-12-07 1988-12-07 Scroll fluid machine

Country Status (1)

Country Link
JP (1) JPH02157487A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253989A (en) * 1991-06-20 1993-10-19 Tokico Ltd. Scroll fluid apparatus having a revolving scroll of separate members
JPH0643295U (en) * 1992-11-18 1994-06-07 株式会社川本製作所 Impeller for pump
US5622487A (en) * 1993-11-02 1997-04-22 Matsushita Electric Industrial Co., Ltd. Scroll compressor having a separate stationary wrap element secured to a frame
US7168931B2 (en) * 2003-10-22 2007-01-30 Danfoss Commercial Compressors Guide device for the movable scroll of a scroll compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253989A (en) * 1991-06-20 1993-10-19 Tokico Ltd. Scroll fluid apparatus having a revolving scroll of separate members
JPH0643295U (en) * 1992-11-18 1994-06-07 株式会社川本製作所 Impeller for pump
US5622487A (en) * 1993-11-02 1997-04-22 Matsushita Electric Industrial Co., Ltd. Scroll compressor having a separate stationary wrap element secured to a frame
US5735678A (en) * 1993-11-02 1998-04-07 Matsushita Electric Industrial Co., Ltd. Scroll compressor having a separate stationary wrap element secured to a frame
US7168931B2 (en) * 2003-10-22 2007-01-30 Danfoss Commercial Compressors Guide device for the movable scroll of a scroll compressor

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