JPH08200264A - Closed type compressor - Google Patents
Closed type compressorInfo
- Publication number
- JPH08200264A JPH08200264A JP1300495A JP1300495A JPH08200264A JP H08200264 A JPH08200264 A JP H08200264A JP 1300495 A JP1300495 A JP 1300495A JP 1300495 A JP1300495 A JP 1300495A JP H08200264 A JPH08200264 A JP H08200264A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- mounting
- cylinder
- bearing
- discharge valve
- 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
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、たとえばロータリ式圧
縮機である密閉形圧縮機において、特にシリンダ室から
高圧ガスを吐出する吐出弁と、この吐出弁を支持する弁
押えの取付け構造の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor which is, for example, a rotary compressor, and in particular, has a discharge valve for discharging high pressure gas from a cylinder chamber and an improved mounting structure for a valve retainer supporting the discharge valve. Regarding
【０００２】[0002]
【従来の技術】たとえば空気調和機や、冷蔵庫などを構
成する冷凍サイクル装置に用いられるロータリ式圧縮機
は、つぎに説明する圧縮機構部を備えている。電動機部
が連結される回転軸には偏心部が一体に設けられてい
て、ここにローラが嵌合される。ローラは、シリンダと
主，副軸受具とから形成されるシリンダ室内で偏心回転
する。2. Description of the Related Art For example, a rotary compressor used in a refrigerating cycle apparatus which constitutes an air conditioner or a refrigerator has a compression mechanism section described below. An eccentric part is integrally provided on the rotary shaft to which the electric motor part is connected, and a roller is fitted therein. The roller eccentrically rotates in a cylinder chamber formed by the cylinder and the main and auxiliary bearing members.
【０００３】上記ローラ周面に、ブレードの先端部が弾
性的に当接してシリンダ室内が区分される。上記シリン
ダには吸込み管が接続され、シリンダ室内に吸込みポー
トが連通する。The tip of the blade elastically abuts on the peripheral surface of the roller to divide the cylinder chamber. A suction pipe is connected to the cylinder, and a suction port communicates with the cylinder chamber.
【０００４】上記主軸受具には吐出ポートが設けられて
いて、シリンダ室内に連通する。そして、吐出ポート上
面に対向する主軸受具には弁押えおよび吐出弁が開閉自
在に設けられている。The main bearing is provided with a discharge port and communicates with the inside of the cylinder chamber. A valve retainer and a discharge valve are openably and closably provided on the main bearing member facing the upper surface of the discharge port.
【０００５】回転軸の回転にともなって、吸込み管から
吸込みポートを介して被圧縮ガスがシリンダ室内に吸込
まれる。シリンダ室内では、回転軸の偏心部とともにロ
ーラが偏心回転し、かつローラ周面にブレード先端部が
摺接してシリンダ室内を区分する。With the rotation of the rotary shaft, the compressed gas is sucked into the cylinder chamber from the suction pipe through the suction port. In the cylinder chamber, the roller is eccentrically rotated together with the eccentric part of the rotary shaft, and the tip of the blade is slidably contacted with the circumferential surface of the roller to divide the cylinder chamber.
【０００６】シリンダ室内に吸込まれたガスは、区分さ
れたシリンダ室内の容積低減にともなって徐々に圧縮さ
れ、ついには高圧化する。所定圧まで上昇したところ
で、吐出ポートを閉成していた吐出弁が開放する。高圧
ガスは、シリンダ室内から吐出ポートを介して密閉ケー
ス内に導出される。The gas sucked into the cylinder chamber is gradually compressed as the volume of the divided cylinder chamber is reduced, and finally becomes high pressure. When the pressure rises to a predetermined value, the discharge valve that has closed the discharge port opens. The high-pressure gas is introduced into the closed case from the cylinder chamber through the discharge port.
【０００７】[0007]
【発明が解決しようとする課題】このようにして作用す
るロータリ式圧縮機であるが、上記吐出弁と弁押えの主
軸受具に対する取付け構造に問題があった。すなわち、
従来の取付け構造としては、吐出弁と弁押えのそれぞれ
取付け固定側端部に取付け用孔が設けられ、この取付け
用孔に連通する主軸受具部位に貫通孔が設けられる。The rotary compressor that operates in this manner has a problem in the structure for mounting the discharge valve and the valve retainer on the main bearing member. That is,
As a conventional mounting structure, mounting holes are provided at the mounting and fixing side ends of the discharge valve and the valve retainer, respectively, and a through hole is provided in a main bearing part communicating with the mounting holes.
【０００８】各取付け用孔と貫通孔にリベットが貫通さ
れ、この両端部が弁押えと主軸受具から突出される。そ
して、この突出端部を圧潰（かしめ）して、主軸受具に
対する吐出弁と弁押えとの取付け一体化がなされる。Rivets penetrate through the respective mounting holes and through holes, and both ends of the rivets project from the valve retainer and the main bearing member. Then, the projecting end portion is crushed (caulked) to integrally attach the discharge valve and the valve retainer to the main bearing member.
【０００９】しかるに、このような取付け構造である
と、吐出弁の開閉動作が高速で、頻繁に繰り返されると
ころから、開閉時に発生する応力がリベット取付け部に
集中してしまう。いわゆる金属疲労が生じ易い条件とな
り、破損に至る虞れがある。However, with such a mounting structure, since the opening / closing operation of the discharge valve is fast and is frequently repeated, the stress generated during opening / closing concentrates on the rivet mounting portion. So-called metal fatigue is likely to occur, which may lead to damage.
【００１０】リベットが必要であるところから、部品数
および部品費の低減を阻害化するとともにリベット取付
け工程が必要で、作業性低下の一因をなしている。これ
ら条件は全てコストの低減化を阻害している。Since rivets are required, reduction of the number of parts and cost of parts is impeded, and a rivet mounting process is required, which is one of the causes of lowering workability. All of these conditions hinder cost reduction.
【００１１】なお、リベットによる固定方法は信頼性が
低く、かしめ発生の不良があって、管理が困難である。
本発明は、上述した事情に鑑みなされたものであり、そ
の目的とするところは、吐出弁の軸受具に対する取付け
を確実になし、破損事故の生じることがなく信頼性の向
上を図り、部品数と部品費の削減によるコスト低減に寄
与する密閉形圧縮機を提供しようとするものである。The rivet fixing method is unreliable, has a problem of caulking, and is difficult to manage.
The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to reliably attach a discharge valve to a bearing member, improve reliability without causing a damage accident, and improve the number of parts. The present invention aims to provide a hermetic compressor that contributes to cost reduction by reducing parts cost.
【００１２】[0012]
【課題を解決するための手段】上記目的を満足するため
本発明の密閉形圧縮機は、請求項１として、シリンダと
軸受具とでシリンダ室を形成し、このシリンダ室内に吸
込まれた被圧縮ガスを圧縮して、上記軸受具に設けられ
る吐出弁を開放させて吐出するものにおいて、上記軸受
具に凹部を設け、この凹部に弁押えを圧入固定し、この
弁押えと上記軸受具凹部との間に上記吐出弁を開閉自在
に介設したことを特徴とする。In order to satisfy the above object, the hermetic compressor of the present invention, as defined in claim 1, forms a cylinder chamber with a cylinder and a bearing tool, and the compressed object sucked into the cylinder chamber. In a device for compressing gas to open and discharge a discharge valve provided in the bearing tool, a recess is provided in the bearing tool, and a valve retainer is press-fitted and fixed in the recess, and the valve retainer and the bearing tool recess are It is characterized in that the discharge valve is interposed between the two so as to be openable and closable.
【００１３】請求項２として、請求項１記載の上記弁押
えの圧入強度を、４００Ｎ以上としたことを特徴とす
る。請求項３として、請求項１および請求項２のいずれ
かに記載の上記弁押えと吐出弁は取付け用孔を備えてお
り、上記軸受具をシリンダに取付ける取付け具を上記取
付け用孔に緩挿して、軸受具とともに弁押えと吐出弁を
シリンダに取付け固定したことを特徴とする。A second aspect of the present invention is characterized in that the press-fitting strength of the valve retainer according to the first aspect is 400 N or more. As a third aspect, the valve retainer and the discharge valve according to any one of the first and second aspects are provided with a mounting hole, and a mounting tool for mounting the bearing tool on a cylinder is loosely inserted into the mounting hole. In addition, the valve retainer and the discharge valve together with the bearing are fixedly attached to the cylinder.
【００１４】請求項４として、請求項１および請求項２
のいずれかに記載の上記軸受具は、吐出ポートから吐出
された高圧ガスを一旦集溜するバルブカバーが嵌着され
ており、このバルブカバーで上記弁押えと吐出弁を軸受
具に介設固定したことを特徴とする。Claims 1 and 2 are defined as Claim 4.
In the above-mentioned bearing according to any one of 1 to 3, a valve cover that temporarily collects the high-pressure gas discharged from the discharge port is fitted, and the valve cover and the discharge valve are fixed to the bearing by the valve cover. It is characterized by having done.
【００１５】請求項５として、請求項４記載の上記バル
ブカバーと、弁押えおよび吐出弁は取付け用孔を備えて
おり、上記軸受具をシリンダに取付ける取付け具を上記
取付け用孔に緩挿して、軸受具とともにバルブカバーと
弁押えおよび吐出弁をシリンダに取付け固定したことを
特徴とする。According to a fifth aspect, the valve cover according to the fourth aspect and the valve retainer and the discharge valve are provided with mounting holes, and a mounting device for mounting the bearing member on the cylinder is loosely inserted into the mounting hole. The valve cover, the valve retainer, and the discharge valve together with the bearing are fixed to the cylinder.
【００１６】[0016]
【作用】軸受具に設けた凹部に弁押えを圧入固定し、こ
の弁押えと軸受具凹部との間に吐出弁を開閉自在に介設
したから、吐出弁取付け用の専用部品が不要となり、し
かも確実な取付けがなされる。[Function] Since the valve retainer is press-fitted and fixed in the recess provided in the bearing and the discharge valve is opened and closed between the valve retainer and the recess of the bearing, the exclusive part for mounting the discharge valve is unnecessary. Moreover, it is securely attached.
【００１７】[0017]
【実施例】以下、本発明の密閉形圧縮機としての一実施
例を、たとえば冷凍サイクル装置に備えられるロータリ
式圧縮機に適用して、図面にもとづいて説明する。図１
に示す、１は密閉ケースである。これは、上下両端が開
口する円筒状胴部１ａの上下両側の開放端に、それぞれ
蓋体１ｂ，１ｃを嵌合し、かつ溶接によって完全密閉状
に形成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the hermetic compressor of the present invention will be described below with reference to the drawings by applying it to a rotary compressor provided in, for example, a refrigeration cycle apparatus. FIG.
Indicated at 1 is a closed case. This is formed by fitting the lids 1b and 1c to the open ends of the upper and lower sides of the cylindrical body 1a whose upper and lower ends are open, and by welding, to form a completely sealed state.
【００１８】この密閉ケース１内には、電動圧縮機本体
２が収容される。上記電動圧縮機本体２は、垂直方向に
向けられる回転軸３の上部側に電動機部４、下部側に圧
縮機構部５が連設されて構成される。An electric compressor body 2 is housed in the closed case 1. The electric compressor body 2 is configured by connecting a motor shaft 4 on the upper side of a rotating shaft 3 oriented in the vertical direction and a compression mechanism part 5 on the lower side.
【００１９】密閉ケース１の内底部には潤滑油を収容す
る油溜り部６が形成されていて、上記圧縮機構部５の一
部が浸漬される。上記電動機部４は、密閉ケース１の円
筒状胴部１ａ内壁に固定する固定子７と、この固定子の
内周面と狭少の間隙を存して配設され、上記回転軸３に
嵌着される回転子８とからなる。An oil reservoir 6 for containing lubricating oil is formed on the inner bottom of the hermetically sealed case 1, and a part of the compression mechanism 5 is immersed therein. The electric motor portion 4 is arranged with a stator 7 fixed to the inner wall of the cylindrical body portion 1a of the hermetically sealed case 1 and an inner peripheral surface of the stator with a small gap, and is fitted to the rotary shaft 3. And a rotor 8 to be worn.
【００２０】上記回転軸３の圧縮機構部５部位に偏心部
３ａが一体に設けられていて、この偏心部外周にローラ
９が嵌合されている。また、これら偏心部３ａとローラ
９は、密閉ケース１に挿嵌されるシリンダ１１内に収容
される。上記シリンダ１１の上面には主軸受具１２が設
けられ、下面には副軸受具１３が設けられていて、シリ
ンダの上端開口部が主軸受具１２で、かつ下部開口部が
副軸受具１３で閉成される。An eccentric portion 3a is integrally provided in the compression mechanism portion 5 of the rotary shaft 3, and a roller 9 is fitted around the eccentric portion. Further, the eccentric portion 3 a and the roller 9 are housed in the cylinder 11 which is fitted into the closed case 1. A main bearing tool 12 is provided on the upper surface of the cylinder 11, and a sub-bearing tool 13 is provided on the lower surface. The upper end opening of the cylinder is the main bearing tool 12 and the lower opening is the sub-bearing tool 13. Closed.
【００２１】上記シリンダ１１内周面と、主軸受具１２
および副軸受具１３とで囲撓される空間部をシリンダ室
１４と呼ぶ。このシリンダ室１４に、上記ローラ９と偏
心部３ａが偏心回転自在に収容される。The inner peripheral surface of the cylinder 11 and the main bearing member 12
The space surrounded by the sub bearing 13 is called a cylinder chamber 14. The roller 9 and the eccentric portion 3a are housed in the cylinder chamber 14 so as to be eccentrically rotatable.
【００２２】上記シリンダ１１には、図示しないブレー
ドが弾性的に押圧付勢された状態で取付けられていて、
この先端部は上記ローラ９周面に弾性的に当接される。
したがって、このブレードによってシリンダ室１４内が
区分される。A blade (not shown) is attached to the cylinder 11 while being elastically pressed and urged.
This tip end elastically contacts the peripheral surface of the roller 9.
Therefore, the inside of the cylinder chamber 14 is divided by this blade.
【００２３】上記シリンダ１１の内周面から外周面に亘
って吸込みポート１６が貫通して設けられ、ここに外部
の冷凍サイクル機器である蒸発器に連通する吸込み管１
７が密閉ケース１を貫通して接続される。A suction port 16 is provided so as to penetrate from the inner peripheral surface of the cylinder 11 to the outer peripheral surface thereof, and the suction pipe 1 communicating with an evaporator which is an external refrigeration cycle device is provided there.
7 penetrates the sealed case 1 and is connected.
【００２４】一方、上記主軸受具１２には吐出ポート１
８が設けられていて、シリンダ室１４内に連通する。そ
して、この吐出ポート１８を開閉する吐出弁１９が、後
述するようにして主軸受具１２に設けられる弁押え２０
に取付け固定される。On the other hand, the main bearing 12 has a discharge port 1
8 is provided and communicates with the inside of the cylinder chamber 14. A discharge valve 19 for opening and closing the discharge port 18 is provided with a valve retainer 20 provided on the main bearing 12 as described later.
It is mounted and fixed on.
【００２５】一方、上記回転軸３の下端部には給油機構
２１が設けられていて、回転軸３の回転にともなって油
溜り部６の潤滑油を吸い上げ、回転軸に設けられる給油
路２２を介して上記主軸受具１２や副軸受具１３および
ローラ９の各摺動部に給油するようになっている。On the other hand, an oil supply mechanism 21 is provided at the lower end of the rotary shaft 3 to suck up the lubricating oil in the oil sump portion 6 with the rotation of the rotary shaft 3 to form an oil supply passage 22 provided on the rotary shaft. The main bearing 12, the auxiliary bearing 13, and the sliding portions of the roller 9 are lubricated through the oil.
【００２６】さらに、密閉ケース１の上端部に外部の冷
凍サイクル機器である凝縮器に連通する吐出管２３が接
続されている。つぎに、上記吐出弁１９の取付け構造に
ついて詳述する。Further, a discharge pipe 23 communicating with a condenser which is an external refrigeration cycle device is connected to the upper end of the closed case 1. Next, the mounting structure of the discharge valve 19 will be described in detail.
【００２７】図１および図２に示すように、主軸受具１
２を構成するフランジ部１２ａに凹部２５が設けられ
る。この凹部２５は、上記吐出ポート１８の上端開口部
と離間した位置から、この開口部に亘って直線的に設け
られるものである。（なお、図１において、凹部２５が
主軸受具１２のフランジ部１２ａから回転軸枢支部１２
ｂまでに亘って設けられるよう図示したが、実際には、
図２（Ａ）に示すように、フランジ部１２ａのみに設け
られるものである） 上記凹部２５内に、極く薄板状の吐出弁１９が挿入され
る。この吐出弁１９は、両端部が円形に形成され、特に
吐出ポート１８の上端開口部を完全に閉成する面積を有
する。As shown in FIGS. 1 and 2, the main bearing member 1
A concave portion 25 is provided on the flange portion 12a that constitutes the second portion. The recess 25 is provided linearly from a position separated from the upper end opening of the discharge port 18 to the opening. (In addition, in FIG. 1, the concave portion 25 extends from the flange portion 12a of the main bearing member 12 to the rotary shaft pivot portion 12).
Although it is shown that it is provided up to b, in reality,
As shown in FIG. 2 (A), it is provided only on the flange portion 12a.) An extremely thin plate-like discharge valve 19 is inserted into the recess 25. The discharge valve 19 is formed in a circular shape at both ends, and has an area that completely closes the upper end opening of the discharge port 18, in particular.
【００２８】吐出弁１８の幅寸法Ｓａは、凹部２５の幅
寸法Ｓｂに対してある程度余裕があり、凹部２５に対す
る吐出弁１９の平面上の嵌め合いは緩く、したがって吐
出弁１９は吐出ポート１８を開閉自在に移動変形するこ
とができる。The width Sa of the discharge valve 18 has a certain margin with respect to the width Sb of the recess 25, and the flat fit of the discharge valve 19 with the recess 25 is loose. It can be moved and deformed to open and close freely.
【００２９】このような吐出弁１９の上から凹部２５内
に弁押え２０が圧入され、吐出弁１９を凹部２５と弁押
え２０との間に介在する。弁押え２０は、ある程度板厚
の厚い金属材であり、上記吐出ポート１８側の端部は斜
め上方に折曲されて、組立て状態では吐出弁１９とは接
触していない。A valve retainer 20 is press-fitted into the recess 25 from above the discharge valve 19, and the discharge valve 19 is interposed between the recess 25 and the valve retainer 20. The valve retainer 20 is a metal material having a thick plate thickness to some extent, and the end portion on the discharge port 18 side is bent obliquely upward so that it does not contact the discharge valve 19 in the assembled state.
【００３０】凹部２５に対する上記弁押え２０の嵌め合
いは、高精度を保持しなければならない。そのために
は、弁押え２０の幅寸法Ｓｂ´を凹部２５の幅寸法Ｓｂ
に精度よく近似させる。The fitting of the valve retainer 20 into the recess 25 must maintain high precision. For that purpose, the width dimension Sb ′ of the valve retainer 20 is set to the width dimension Sb of the recess 25.
To be accurately approximated.
【００３１】たとえば、弁押え２０の凹部２５に対する
圧入しめ代として０．０２８mm（最大）に設定する。こ
れは、軸と孔の嵌め合いにおけるＨ７−ｒ６（ＪＩＳ
Ｂ０４０１）に相当する。For example, the press-fitting margin of the valve retainer 20 into the recess 25 is set to 0.028 mm (maximum). This is due to the H7-r6 (JIS
B0401).
【００３２】圧入強度（抜き力）は、４００Ｎ以上に設
定する。好ましくは、５００Ｎは必要である。したがっ
て、弁押え２０は凹部２５に対して極めて高精度の圧入
がなされることになり、これら弁押え２０と凹部２５と
の間に介在される吐出弁１９の取付け強度は充分に確保
される。しかも、吐出弁１９の取付け専用の部品が不要
で、部品が少なくてすむ。The press-fitting strength (pulling force) is set to 400 N or more. Preferably 500N is required. Therefore, the valve retainer 20 is press-fitted into the recess 25 with extremely high precision, and the mounting strength of the discharge valve 19 interposed between the valve retainer 20 and the recess 25 is sufficiently secured. Moreover, there is no need for a component dedicated to mounting the discharge valve 19, and the number of components can be reduced.
【００３３】このようにして構成されるロータリ式圧縮
機であり、電動機部４に通電することにより回転軸３が
回転駆動され、ここに一体に設けられる偏心部３ａおよ
びローラ９がシリンダ室１４で偏心回転する。In the rotary compressor constructed as described above, the rotating shaft 3 is rotationally driven by energizing the electric motor portion 4, and the eccentric portion 3a and the roller 9 which are integrally provided in the rotating shaft 3 are formed in the cylinder chamber 14. Eccentric rotation.
【００３４】この回転にともなって、吸込み管１７から
低圧の冷媒ガスが吸込みポート１６を介してシリンダ室
１４内に吸込まれる。さらにローラ９の偏心回転にとも
なって、ローラ９のシリンダ室１４内周面に対する転接
位置が移動し、ガスを吸込んだシリンダ室１４容積が減
少して、ガスは徐々に圧縮される。With this rotation, low-pressure refrigerant gas is sucked from the suction pipe 17 into the cylinder chamber 14 through the suction port 16. Further, with the eccentric rotation of the roller 9, the rolling contact position of the roller 9 with respect to the inner peripheral surface of the cylinder chamber 14 moves, the volume of the cylinder chamber 14 sucking the gas decreases, and the gas is gradually compressed.
【００３５】回転軸３が継続して回転され、シリンダ室
１４の容量がさらに減少して、ここに導かれたガスが圧
縮され、所定圧まで上昇したところで、吐出ポート１８
を閉塞していた吐出弁１９を押し上げる。The rotary shaft 3 is continuously rotated, the capacity of the cylinder chamber 14 is further reduced, the gas introduced therein is compressed, and when it reaches a predetermined pressure, the discharge port 18 is reached.
The discharge valve 19 that has closed the valve is pushed up.
【００３６】吐出弁１９は部分的に変形して弁押え２０
に当接し、吐出ポート１８は開放状態になる。シリンダ
室１４内の高圧ガスは吐出ポート１８を介して密閉ケー
ス１内に吐出される。高圧ガスは密閉ケース１内に充満
し、かつケース上部の吐出管２３から吐出される。The discharge valve 19 is partially deformed so that the valve retainer 20
And the discharge port 18 is opened. The high-pressure gas in the cylinder chamber 14 is discharged into the closed case 1 through the discharge port 18. The high-pressure gas fills the closed case 1 and is discharged from the discharge pipe 23 at the upper part of the case.
【００３７】シリンダ室１４からガスが吐出されると吐
出弁１９は吐出ポート１８を閉塞し、シリンダ室が所定
圧まで上昇すると開放する作用を繰り変えすのであり、
吐出弁１９は極めて高速で開閉作用をなす。When the gas is discharged from the cylinder chamber 14, the discharge valve 19 closes the discharge port 18 and repeats the operation of opening when the cylinder chamber rises to a predetermined pressure.
The discharge valve 19 opens and closes at an extremely high speed.
【００３８】しかるに、この吐出弁１９を凹部２５に圧
入した弁押え２０で固定支持したから、吐出弁の開閉時
に発生する応力が一部に集中することがなく、応力分散
が図れ、いわゆる金属疲労を抑制する。吐出弁１９の破
損を確実に防止できることになり、信頼性の向上を図れ
る。専用の取付け部品が不要で、部品数と、部品費が低
減して、組立て作業性の向上によるコストの低減に寄与
する。However, since the discharge valve 19 is fixedly supported by the valve retainer 20 which is press-fitted into the recess 25, the stress generated when the discharge valve is opened and closed does not concentrate on a part, the stress is dispersed, and so-called metal fatigue occurs. Suppress. Since the discharge valve 19 can be reliably prevented from being damaged, reliability can be improved. No dedicated mounting parts are required, and the number of parts and parts cost are reduced, which contributes to cost reduction by improving assembly workability.
【００３９】図３に示すような、吐出弁１９の取付け構
造であってもよい。この場合、主軸受具１２をシリンダ
１１に取付け固定する取付け具である、取付けボルト３
０をそのまま用いる。この取付けボルト３０は、主軸受
具１２に設けられる取付け用孔３１に緩挿され、シリン
ダ１１に設けられるねじ孔３２に螺挿されるものであ
る。The discharge valve 19 may be attached as shown in FIG. In this case, the mounting bolt 3 which is a mounting tool for mounting and fixing the main bearing tool 12 to the cylinder 11.
0 is used as it is. The mounting bolt 30 is loosely inserted into a mounting hole 31 provided in the main bearing 12, and screwed into a screw hole 32 provided in the cylinder 11.
【００４０】先に説明したように、主軸受具１２のフラ
ンジ部１２ａに凹部２５を設け、吐出弁１９を介在させ
た状態にして弁押え２０を圧入することには変わりがな
い。上記弁押え２０と吐出弁１９端部には取付け用孔３
１が設けられ、これら取付け用孔に取付けボルト３０を
緩挿し、シリンダ１１のねじ孔３２に螺挿する。As described above, the recess 25 is provided in the flange portion 12a of the main bearing 12, and the valve retainer 20 is press-fitted with the discharge valve 19 interposed. Mounting holes 3 are provided at the ends of the valve retainer 20 and the discharge valve 19.
1 is provided, and the mounting bolt 30 is loosely inserted into these mounting holes and screwed into the screw hole 32 of the cylinder 11.
【００４１】他の取付けボルト３０と同様、主軸受具１
２をシリンダ１１に取付け固定するとともに、凹部２５
に圧入された弁押え２０と、この弁押えと凹部との間に
介設される吐出弁１９をさらに確実に主軸受具に取付け
固定することになる。As with the other mounting bolts 30, the main bearing 1
2 is mounted and fixed to the cylinder 11, and the recess 25
Thus, the valve retainer 20 press-fitted in and the discharge valve 19 provided between the valve retainer and the concave portion can be more securely attached and fixed to the main bearing member.
【００４２】この取付けボルト３０は、主軸受具１２の
シリンダ１２への取付け固定用部品でありながら、吐出
弁１９と弁押え２０の取付け固定を兼用するものである
から、部品数の増加には至らない。Although this mounting bolt 30 is a component for mounting and fixing the main bearing 12 to the cylinder 12, it also serves to mount and secure the discharge valve 19 and the valve retainer 20, so that the number of components can be increased. I can't reach it.
【００４３】図４に示すような、吐出弁１９の取付け構
造であってもよい。この場合、主軸受具１２に嵌着され
るバルブカバー３５をそのまま用いる。このバルブカバ
ー３５は、吐出ポート１８を吐出弁１９を介して覆う密
閉空間を備えていて、吐出ポートから吐出される高圧ガ
スを一旦集溜する。そして、カバー３５内の密閉空間で
整圧するとともに、脈動音の減衰をなし、ここに設けら
れる案内孔３６から密閉ケース１内に吐出するようにな
っている。The discharge valve 19 may be attached as shown in FIG. In this case, the valve cover 35 fitted to the main bearing 12 is used as it is. The valve cover 35 has a closed space that covers the discharge port 18 via the discharge valve 19, and temporarily collects the high-pressure gas discharged from the discharge port. The pressure is regulated in the closed space inside the cover 35, the pulsating sound is attenuated, and the pulsating sound is discharged into the closed case 1 through the guide hole 36 provided therein.
【００４４】先に説明したように、主軸受具１２のフラ
ンジ部１２ａに凹部２５を設け、吐出弁１９を介在させ
た状態にして弁押え２０を圧入することには変わりがな
い。このとき、図のように弁押え面とフランジ部面とを
同一にしてもよく、あるいは凹部を浅めに設けて弁押え
面がわずかに突出するようにしてもよい。As described above, the recess 25 is provided in the flange portion 12a of the main bearing 12, and the valve retainer 20 is press-fitted with the discharge valve 19 interposed. At this time, the valve pressing surface and the flange portion surface may be the same as shown in the figure, or the recess may be provided shallowly so that the valve pressing surface slightly projects.
【００４５】そして、上記バルブカバー３５を主軸受フ
ランジ部１２ａに嵌着する。凹部２５に圧入された弁押
え２０と、この弁押えと凹部２５との間に介設される吐
出弁１９を、バルブカバー３５はさらに確実に主軸受具
１２に取付け固定することになる。Then, the valve cover 35 is fitted on the main bearing flange portion 12a. The valve cover 35 is press-fitted into the recess 25, and the discharge valve 19 provided between the valve press and the recess 25 is more securely fixed to the main bearing 12 by the valve cover 35.
【００４６】このバルブカバー３５は、主軸受具１２の
シリンダ１１への取付け固定用部品でありながら、吐出
弁１９と弁押え２０の取付け固定を兼用するものである
から、部品数の増加には至らない。The valve cover 35 is a component for mounting and fixing the main bearing 12 to the cylinder 11, but also serves to mount and secure the discharge valve 19 and the valve retainer 20. I can't reach it.
【００４７】図５に示すような、吐出弁１９の取付け構
造であってもよい。この場合も、主軸受具１２に取付け
られるバルブカバー３５をそのまま用いる。そして、バ
ルブカバー３５と主軸受具１２とをシリンダ１１に取付
け固定する取付け具である取付けボルト３０をそのまま
用いる。この取付けボルト３０は、主軸受具１２とバル
ブカバー３５に設けられる取付け用孔３１に緩挿され、
シリンダ１１に設けられるねじ孔３２に螺挿されるもの
である。The discharge valve 19 may be attached as shown in FIG. Also in this case, the valve cover 35 attached to the main bearing 12 is used as it is. Then, the mounting bolt 30, which is a mounting tool for mounting and fixing the valve cover 35 and the main bearing 12 to the cylinder 11, is used as it is. The mounting bolt 30 is loosely inserted into mounting holes 31 provided in the main bearing 12 and the valve cover 35,
It is screwed into a screw hole 32 provided in the cylinder 11.
【００４８】先に説明したように、主軸受具１２のフラ
ンジ部１２ａに凹部２５を設け、吐出弁１９を介在させ
た状態にして弁押え２０を圧入する。上記弁押え２０と
吐出弁１９端部には取付け用孔が設けられていて、これ
ら取付け用孔に取付けボルト３０を緩挿し、シリンダ１
１のねじ孔３２に螺挿する。As described above, the recessed portion 25 is provided in the flange portion 12a of the main bearing 12, and the valve retainer 20 is press-fitted with the discharge valve 19 interposed. Mounting holes are provided at the ends of the valve retainer 20 and the discharge valve 19, and the mounting bolts 30 are loosely inserted into the mounting holes to attach the cylinder 1 to the cylinder 1.
1 is screwed into the screw hole 32.
【００４９】他の取付けボルト３０と同様、バルブカバ
ー３５と主軸受具１２をシリンダ１１に取付け固定する
とともに、凹部２５に圧入された弁押え２０と、この弁
押えと凹部との間に介設される吐出弁１９をさらに確実
に主軸受具１２に取付け固定することになる。Similar to the other mounting bolts 30, the valve cover 35 and the main bearing 12 are mounted and fixed to the cylinder 11, and the valve retainer 20 is press-fitted into the recess 25, and is interposed between the valve retainer and the recess. The discharge valve 19 to be attached is more surely attached and fixed to the main bearing member 12.
【００５０】この取付けボルト３０は、バルブカバー３
５と主軸受具１２のシリンダ１１への取付け固定用部品
であり、吐出弁１９と弁押え２０の取付け固定を兼用す
るものであるから、部品数の増加には至らない。The mounting bolt 30 is used for the valve cover 3
5 is a component for mounting and fixing the main bearing 12 and the cylinder 11 to the cylinder 11, and also serves to mount and secure the discharge valve 19 and the valve retainer 20, so that the number of components does not increase.
【００５１】[0051]
【発明の効果】以上説明したように本発明は、軸受具に
凹部を設け、この凹部に弁押えを圧入固定し、この弁押
えと上記軸受具凹部との間に上記吐出弁を開閉自在に介
設したから、吐出弁の軸受具に対する取付けを確実にな
し、破損事故の生じることがなく信頼性の向上を図り、
部品数と部品費の削減によるコスト低減に寄与するなど
の効果を奏する。As described above, according to the present invention, the bearing is provided with the recess, the valve retainer is press-fitted and fixed in the recess, and the discharge valve can be opened and closed between the valve retainer and the bearing recess. Since it is installed, the discharge valve is securely attached to the bearing, and there is no damage accident, improving reliability.
This has the effect of contributing to cost reduction by reducing the number of parts and the cost of parts.
【００５２】請求項２において、弁押えの圧入強度を４
００Ｎ以上としたから、吐出弁の取付け強度を充分に確
保して、信頼性の向上を得る。請求項３において、弁押
えと吐出弁の取付け用孔に、軸受具取付け具を緩挿し
て、軸受具とともに弁押えと吐出弁をシリンダに取付け
固定したから、部品数を増加することなく吐出弁の取付
け強度を増大化できる。In claim 2, the press-fitting strength of the valve retainer is 4
Since it is set to 00N or more, the mounting strength of the discharge valve is sufficiently secured, and the reliability is improved. In Claim 3, the bearing retainer fixture is loosely inserted into the attachment holes of the valve retainer and the discharge valve, and the valve retainer and the discharge valve are fixedly attached to the cylinder together with the bearing fixture, so that the number of parts does not increase The mounting strength of can be increased.
【００５３】請求項４において、バルブカバーで弁押え
と吐出弁を軸受具に介設固定したから、バルブカバーを
嵌着するだけで、部品数を増加することなく吐出弁の取
付け強度を増大化できる。In the present invention, since the valve retainer and the discharge valve are fixed to the bearing member by the valve cover, the valve cover is simply fitted to increase the mounting strength of the discharge valve without increasing the number of parts. it can.
【００５４】請求項５において、弁押えと吐出弁の取付
け用孔に、軸受具取付け具を緩挿して、軸受具とともに
バルブカバーと弁押えおよび吐出弁をシリンダに取付け
固定したから、部品数を増加することなく吐出弁の取付
け強度を増大化できる。According to the present invention, the bearing fitting fixture is loosely inserted into the attachment holes of the valve retainer and the discharge valve, and the valve cover, the valve retainer and the discharge valve are fixedly attached to the cylinder together with the bearing fixture. The mounting strength of the discharge valve can be increased without increasing.
【図１】本発明の一実施例を示す、密閉形圧縮機である
ロータリ式圧縮機の縦断面図。FIG. 1 is a vertical cross-sectional view of a rotary compressor, which is a hermetic compressor, showing an embodiment of the present invention.
【図２】（Ａ）は、同実施例の、主軸受具の平面図。
（Ｂ）は、同図（Ａ）のＢ−Ｂ線に沿う縦断面図。FIG. 2A is a plan view of a main bearing device of the embodiment.
(B) is a longitudinal sectional view taken along the line BB of FIG.
【図３】他の実施例の、圧縮機構部の縦断面図。FIG. 3 is a longitudinal sectional view of a compression mechanism portion according to another embodiment.
【図４】さらに他の実施例の、圧縮機構部の縦断面図。FIG. 4 is a vertical sectional view of a compression mechanism portion according to still another embodiment.
【図５】さらに他の実施例の、圧縮機構部の縦断面図。FIG. 5 is a vertical sectional view of a compression mechanism portion according to still another embodiment.
１１…シリンダ、１２…主軸受具、１９…吐出弁、２５
…凹部、２０…弁押え、３１…取付け用孔、３０…取付
けボルト、３５…バルブカバー。11 ... Cylinder, 12 ... Main bearing, 19 ... Discharge valve, 25
... recesses, 20 ... valve retainer, 31 ... mounting holes, 30 ... mounting bolts, 35 ... valve cover.
Claims (5)
し、このシリンダ室内に吸込まれた被圧縮ガスを圧縮し
て、上記軸受具に設けられる吐出弁を開放させて吐出す
る密閉形圧縮機において、 上記軸受具に凹部を設け、この凹部に弁押えを圧入固定
し、この弁押えと上記軸受具凹部との間に上記吐出弁を
開閉自在に介設したことを特徴とする密閉形圧縮機。1. A hermetic compressor in which a cylinder chamber is formed by a cylinder and a bearing member, and a compressed gas sucked into the cylinder chamber is compressed to open a discharge valve provided in the bearing member to discharge the compressed gas. In the above-mentioned, a hermetically sealed compression characterized in that a recess is provided in the bearing, a valve retainer is press-fitted and fixed in the recess, and the discharge valve is interposed between the valve retainer and the recess of the bearing. Machine.
したことを特徴とする請求項１記載の密閉形圧縮機。2. The hermetic compressor according to claim 1, wherein the press-fitting strength of the valve retainer is 400 N or more.
おり、上記軸受具をシリンダに取付ける取付け具を上記
取付け用孔に緩挿して、軸受具とともに弁押えと吐出弁
をシリンダに取付け固定したことを特徴とする請求項１
および請求項２のいずれかに記載の密閉形圧縮機。3. The valve retainer and the discharge valve are provided with mounting holes, and a mounting fixture for mounting the bearing fitting to the cylinder is loosely inserted into the mounting hole so that the valve retainer and the discharge valve are mounted on the cylinder together with the bearing fitting. It is fixed by mounting.
And the hermetic compressor according to claim 2.
高圧ガスを一旦集溜するバルブカバーが嵌着されてお
り、このバルブカバーで上記弁押えと吐出弁を軸受具に
介設固定したことを特徴とする請求項１および請求項２
のいずれかに記載の密閉形圧縮機。4. The above-mentioned bearing is fitted with a valve cover that temporarily collects the high-pressure gas discharged from the discharge port, and the valve retainer and the discharge valve are fixed to the bearing with this valve cover. Claim 1 and Claim 2 characterized by the above.
The hermetic compressor according to any one of 1.
は取付け用孔を備えており、上記軸受具をシリンダに取
付ける取付け具を上記取付け用孔に緩挿して、軸受具と
ともにバルブカバーと弁押えおよび吐出弁をシリンダに
取付け固定したことを特徴とする請求項４記載の密閉形
圧縮機。5. The valve cover and the valve retainer and the discharge valve are provided with mounting holes, and a mounting member for mounting the bearing member on a cylinder is loosely inserted into the mounting hole so that the valve cover and the valve together with the bearing member. The hermetic compressor according to claim 4, wherein the presser foot and the discharge valve are attached and fixed to the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1300495A JPH08200264A (en) | 1995-01-30 | 1995-01-30 | Closed type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1300495A JPH08200264A (en) | 1995-01-30 | 1995-01-30 | Closed type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08200264A true JPH08200264A (en) | 1996-08-06 |
Family
ID=11821039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1300495A Pending JPH08200264A (en) | 1995-01-30 | 1995-01-30 | Closed type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08200264A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010070851A1 (en) * | 2008-12-17 | 2010-06-24 | ダイキン工業株式会社 | Sealed compressor |
| EP2713055A2 (en) | 2012-09-28 | 2014-04-02 | Fujitsu General Limited | Rotary Compressor |
| JP2014167283A (en) * | 2013-02-28 | 2014-09-11 | Fujitsu General Ltd | Rotary compressor |
-
1995
- 1995-01-30 JP JP1300495A patent/JPH08200264A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010070851A1 (en) * | 2008-12-17 | 2010-06-24 | ダイキン工業株式会社 | Sealed compressor |
| JP2010190040A (en) * | 2008-12-17 | 2010-09-02 | Daikin Ind Ltd | Hermetic compressor |
| CN102257278A (en) * | 2008-12-17 | 2011-11-23 | 大金工业株式会社 | Sealed compressor |
| US8721309B2 (en) | 2008-12-17 | 2014-05-13 | Daikin Industries, Ltd. | Airtight compressor |
| EP2713055A2 (en) | 2012-09-28 | 2014-04-02 | Fujitsu General Limited | Rotary Compressor |
| US8979517B2 (en) | 2012-09-28 | 2015-03-17 | Fujitsu General Limited | Rotary compressor having semicircular-step-snap enlarged diameter portion in groove portion of end plate closing end portion of cylinder |
| JP2014167283A (en) * | 2013-02-28 | 2014-09-11 | Fujitsu General Ltd | Rotary compressor |
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