JPH01318786A - Hermetic type rotary compressor - Google Patents
Hermetic type rotary compressorInfo
- Publication number
- JPH01318786A JPH01318786A JP15077788A JP15077788A JPH01318786A JP H01318786 A JPH01318786 A JP H01318786A JP 15077788 A JP15077788 A JP 15077788A JP 15077788 A JP15077788 A JP 15077788A JP H01318786 A JPH01318786 A JP H01318786A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- section
- crankshaft
- rotary compressor
- electric motor
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- 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)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は冷凍装置に用いられる横置式の密閉型消エネル
ギー化や信頼性の向上を図る傾向にある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention tends to improve energy consumption and reliability of horizontally placed closed type refrigeration equipment.
以下図面を参照しながら、従来の密閉型回転式圧縮機の
一例について説明する。An example of a conventional hermetic rotary compressor will be described below with reference to the drawings.
第４図は実公昭６３−１０１９号公報に示されている密
閉型回転式圧縮機で、１は従来の密閉型回転式圧縮機で
、密閉容器２内にステータ３とロータ４とから成る電動
機部６と、この電動機部５とクランクシャフト６を介し
て駆動される圧縮部８を収納している。前記圧縮部８は
シリンダ９内にローリングピストン１ｏと、これを偏心
回転せしめるクランクシャフト７及び高圧室と低圧室を
仕切るベーン（図示せず）と、クランクシャフト７を軸
受するベアリング１１とシリンダヘッド１２から成る。Fig. 4 shows a hermetic rotary compressor shown in Japanese Utility Model Publication No. 1983-1019. 1 is a conventional hermetic rotary compressor, and an electric motor consisting of a stator 3 and a rotor 4 is housed in a hermetically sealed container 2. 6 and a compression section 8 that is driven via the electric motor section 5 and crankshaft 6. The compression section 8 includes a rolling piston 1o in a cylinder 9, a crankshaft 7 that eccentrically rotates the piston 1o, a vane (not shown) that partitions a high pressure chamber and a low pressure chamber, a bearing 11 that bears the crankshaft 7, and a cylinder head 12. Consists of.
１３は油ポンプで、密閉容器２の内底部１４に貯溜する
油Ａ （１５ａ ）中にて、吐出マフラー１８内に連通
するパイプＡ１７と、クランクシャフト７の軸方向に円
筒状の中空部１８に連通する太径のパイプＢ１９とが開
口部２０を有して接続されている。２１はオイル孔で、
中空部１８から圧縮部８の摺動部２２に連通している。Reference numeral 13 denotes an oil pump that pumps oil A (15a) stored in the inner bottom 14 of the closed container 2 into a pipe A17 that communicates with the discharge muffler 18 and a cylindrical hollow part 18 in the axial direction of the crankshaft 7. A communicating large-diameter pipe B19 is connected through an opening 20. 21 is the oil hole,
The hollow portion 18 communicates with the sliding portion 22 of the compression portion 8 .
２３はシリンダ９から吐出されるガス（矢印にて示す）
である。23 is gas discharged from cylinder 9 (indicated by an arrow)
It is.
以上のような構成において、電動機部５に通電されると
ロータ４が回転すると同時にクランクシャフト７が回転
し圧縮部８にて圧縮動作を行う。In the above configuration, when the electric motor section 5 is energized, the rotor 4 rotates and the crankshaft 7 simultaneously rotates, so that the compression section 8 performs a compression operation.
シリンダ９内から吐出されたガス２３（矢印にて示す）
は、吐出マフラー１６を通り、パイプＡ１７へ導かれる
と共にパイプＡ１７は、密閉容器２の内底部１４に貯溜
する油Ａ （１５ａ ）中にて太径のパイプＢ１９に接
続されている為、この接続箇所において、イゼクター効
果により、開口部２０より、油Ａ （１６ａ ）はパイ
プＢ１９を通りクランクシャフト７内の中空部１８に供
給され、オイル孔２１を通り摺動部２２に給油される。Gas 23 discharged from inside the cylinder 9 (indicated by an arrow)
This connection At this point, due to the ejector effect, oil A (16a) is supplied from the opening 20 through the pipe B19 to the hollow part 18 in the crankshaft 7, and is supplied to the sliding part 22 through the oil hole 21.
発明が解決しようとする課題
しかしながら上記のような構成では、密閉型回転式圧縮
機１のサイクリング運転（ＯＮ−ＯＦＦ運転）時に於い
て密閉型回転式圧縮機１が停止すると運転中にクランク
シャフトＴ内の中空部１８に充満されていた油Ｂ（１５
ｂ）は、密閉容器２の内底部１４へ流下してしまう。次
に、密閉型回転式圧縮機１が再始動時、シリンダ９から
吐出されるガス２３により、ふたたび油Ａ（１ｓａ）は
クランクシャフト７の中空部１８へ供給されるが、クラ
ンクシャフト７が回転し、圧縮動作に入ってから、摺動
部２２に油Ａ （１５ａ ）が給油される迄には、１秒
ないし２秒の時間を要し、その間、無給油の状態で運転
されることになり始動不良や、始動時の入力増加、また
摺動部の異常摩耗を起し、密閉型回転式圧縮機の信頼性
を低下させるという課題を有していた。Problems to be Solved by the Invention However, in the above configuration, when the hermetic rotary compressor 1 stops during cycling operation (ON-OFF operation) of the hermetic rotary compressor 1, the crankshaft T Oil B (15
b) flows down to the inner bottom 14 of the closed container 2. Next, when the hermetic rotary compressor 1 is restarted, the oil A (1sa) is again supplied to the hollow part 18 of the crankshaft 7 by the gas 23 discharged from the cylinder 9, but the crankshaft 7 rotates. However, after starting the compression operation, it takes 1 to 2 seconds for the sliding part 22 to be supplied with oil A (15a), and during that time, it will be operated without oil supply. This causes problems such as poor starting, increased input during starting, and abnormal wear of the sliding parts, reducing the reliability of the hermetic rotary compressor.
本発明は上記課題に鑑み、クランクシャフト内の中空部
に凹部状の油溜りを設け、油を貯溜することにより、再
始動時の初期給油を目的とした密閉型回転式圧縮機を提
供するものである。In view of the above-mentioned problems, the present invention provides a hermetic rotary compressor for the purpose of initial oil supply at the time of restart by providing a concave oil reservoir in the hollow part of the crankshaft to store oil. It is.
課題を解決するだめの手段
以上のような課題を解決するために本発明の密閉型回転
式圧縮機は、クランクシャフトの中空部の内壁面に、外
周方向に厚みを有したリング状の油止めを軽圧挿入し、
油止めの外周と、内壁面とをシールすることにより、ク
ランクシャフト内に凹部状の油溜シを形成したクランク
シャフトを備えたものである。Means for Solving the Problems In order to solve the above problems, the hermetic rotary compressor of the present invention has a ring-shaped oil stopper that is thick in the outer circumferential direction on the inner wall surface of the hollow part of the crankshaft. Insert the
The crankshaft is equipped with a concave oil reservoir formed in the crankshaft by sealing the outer periphery of the oil stopper and the inner wall surface.
作 用
本発明は上記した構成により、密閉型回転式圧縮機の停
止時、クランクシャフト内の中空部内のオイルを密閉容
器の内底部に流下させることなく、クランクシャフト内
の中空部に油Ｂを溜めておき、前記油Ｂで密閉型回転式
圧縮機の再始動時、前記油で圧縮部の摺動部に初期給油
を行うことによシ始励不良や、始動時の入力増加、また
摺動部の異常摩耗を防止することとなる。Effect of the Invention With the above-described configuration, the present invention allows oil B to flow into the hollow part of the crankshaft when the hermetic rotary compressor is stopped, without causing the oil in the hollow part of the crankshaft to flow down to the inner bottom of the sealed container. By storing the oil B and initially lubricating the sliding parts of the compression part with the oil B when restarting the hermetic rotary compressor, it can prevent starting problems, increased input during startup, and sliding parts. This will prevent abnormal wear on moving parts.
実施例
以下本発明の一実施例の密閉型回転式圧縮機について図
面を参照しながら説明する。尚、従来例と同一部品は同
一符号を用いて説明し、構成、動作の同じところは省略
する。EXAMPLE A hermetic rotary compressor according to an example of the present invention will be described below with reference to the drawings. Note that parts that are the same as those in the conventional example will be described using the same reference numerals, and parts that are the same in structure and operation will be omitted.
第１図から第３図において、３１は本発明の密閉型回転
式圧縮機で、圧縮部８側に相当するクランクシャフト７
の内には、クランクシャフト７の軸方向に径の大きい円
筒状の内壁面３２を有した中空部１８が形成され、電動
機部６と反対側の中空部１８の末端には、円周方向に厚
みを有し、前記中空部１８の円筒状の直径よりやや大き
い径を有したリング状の油止め３３が軽圧挿入され、油
止め３３の円周方向の円周面３３ａと、内壁面３２とを
シールすることによりクランクシャフトＴ内に凹部状の
油溜シ３４を形成し前記油溜り３４に。1 to 3, reference numeral 31 denotes a hermetic rotary compressor of the present invention, and a crankshaft 7 corresponding to the compression section 8 side.
A hollow part 18 having a cylindrical inner wall surface 32 with a large diameter in the axial direction of the crankshaft 7 is formed inside the crankshaft 7, and at the end of the hollow part 18 on the opposite side from the electric motor part 6, a hollow part 18 is formed in the circumferential direction. A ring-shaped oil stopper 33 having a thickness and a diameter slightly larger than the cylindrical diameter of the hollow portion 18 is inserted under light pressure, and the circumferential surface 33a of the oil stopper 33 in the circumferential direction and the inner wall surface 32 A concave oil sump 34 is formed in the crankshaft T by sealing with the oil sump 34.
油Ｂ（１ｓｂ）を貯溜している。Oil B (1sb) is stored.
以上のような構成において、密閉型回転式圧縮機３１の
停止時、中空部１８内の油Ｂ（１６ｂ）はすべて密閉容
器２の内底部１４に流下することなく油Ｂ（１ｓｂ）は
油溜り３４に貯溜される。In the above configuration, when the hermetic rotary compressor 31 is stopped, all of the oil B (16b) in the hollow part 18 does not flow into the inner bottom 14 of the hermetic container 2, and the oil B (1sb) remains in the oil pool. It is stored in 34.
次に、密閉型回転式圧縮機３１が再始動すると、油溜り
３４内の油Ｂ（１ｓｂ）は遠心力により、オイル孔２１
を通電、摺動部２２へ初期給油される。以後は吐出ガス
により、イゼクター効果によシ、油Ａ （１６ａ ）が
中空部１８に供給される。Next, when the hermetic rotary compressor 31 is restarted, the oil B (1sb) in the oil reservoir 34 is moved to the oil hole 21 by centrifugal force.
Electricity is applied, and the sliding portion 22 is initially lubricated. Thereafter, the oil A (16a) is supplied to the hollow part 18 by the ejector effect by the discharged gas.
従って、密閉型回転式圧縮機の始動不良や、始動時の入
力増加、また、摺動部の異常摩耗を減少させ、消エネル
ギー及び信頼性の高い密閉型回転式圧縮機を提供するこ
とができる。Therefore, it is possible to reduce starting problems of the hermetic rotary compressor, increase of input at the time of startup, and abnormal wear of the sliding parts, and provide a hermetic rotary compressor that consumes less energy and has high reliability. .
発明の効果
以上のように本発明はクランクシャフトの中空部の内壁
面に、円周方向に厚みを有したリング状の油止めを軽圧
挿入し、油止めの外周と内壁面とをシールすることによ
り、クランクシャフト内に凹部状の油溜りを設けること
により、油溜りに残溜する油が、密閉型回転式圧縮機の
再始動時、クランクシャフトの回転に伴って、圧縮部の
摺動部へ初期給油されるので、密閉型回転式圧縮機の始
動不良や、始動時の入力増加、また、摺動部の異常摩耗
を減少させ、消エネルギー及び信頼性の高い密閉型回転
式圧縮機を提供することができる。Effects of the Invention As described above, the present invention inserts a ring-shaped oil stopper having a thickness in the circumferential direction into the inner wall surface of the hollow part of the crankshaft under light pressure, and seals the outer periphery of the oil stopper and the inner wall surface. By providing a concave oil reservoir in the crankshaft, the oil remaining in the oil reservoir will be absorbed by the sliding of the compression section as the crankshaft rotates when the hermetic rotary compressor is restarted. Since the initial lubricant is supplied to the parts of the hermetic rotary compressor, it reduces starting problems of the hermetic rotary compressor, increases in input during startup, and abnormal wear of the sliding parts, resulting in a hermetic rotary compressor that is energy efficient and highly reliable. can be provided.
第１図は本発明の一実施例における密閉型回転式圧縮機
の主要部の部分断面図、第２図は第１図の密閉型回転式
圧縮機の断面図、第３図は第１図で示した油止めの斜視
図、第４図は従来の密閉型回転式圧縮機の断面図、第６
図は第４図における圧縮部側からの断面図である。
２・・・・・・密閉容器、３・・・・・・ステータ、４
・・・・・・ロータ、５・・・・・・電動機部、７・・
・・・・クランクシャフト、８・・・・・・圧縮部、１
８・・・・・・中空部、３１・・・・・・密閉型回転式
圧縮機、３２・・・・・・内壁面、３３・・・・・・油
止め、３４・・・・・・油溜り。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ど−
ｉ聞容皿
３− ステータ
４− ロータ
３３− 油止り
第 １ 図 ３４−−一 ン由 ′ｔ
ぶ１′ノａｆｌｆ２ 図1 is a partial sectional view of the main parts of a hermetic rotary compressor according to an embodiment of the present invention, FIG. 2 is a sectional view of the hermetic rotary compressor of FIG. 1, and FIG. 3 is a sectional view of the hermetic rotary compressor of FIG. 1. Figure 4 is a perspective view of the oil stopper shown in Figure 4 is a sectional view of a conventional hermetic rotary compressor, Figure 6 is a sectional view of a conventional hermetic rotary compressor.
The figure is a sectional view from the compression part side in FIG. 4. 2... Airtight container, 3... Stator, 4
...Rotor, 5...Electric motor section, 7...
... Crankshaft, 8 ... Compression section, 1
8... Hollow part, 31... Sealed rotary compressor, 32... Inner wall surface, 33... Oil stopper, 34...・Oil pool. Name of agent: Patent attorney Toshio Nakao and one other person
i Receiving plate 3 - Stator 4 - Rotor 33 - Oil stop No. 1 Figure 34--1 't
bu1'noaflf2 figure
Claims (1)
と軸方向に円筒状の中空部を形成したクランクシャフト
を介して駆動される圧縮部とを密閉容器内に収納すると
共に、前記クランクシャフトの中空部の内壁面に、円周
方向に厚みを有したリング状の油止めを軽圧挿入し、油
止めの外周と内壁面とをシールして、クランクシャフト
内に凹部状の油溜りを形成したクランクシャフトを備え
たことを特徴とする密閉型回転式圧縮機。An electric motor section consisting of a stator and a rotor, and a compression section that is driven via a crankshaft having a cylindrical hollow section formed in the axial direction with the electric motor section are housed in a sealed container, and the hollow section of the crankshaft is A ring-shaped oil stopper with a thickness in the circumferential direction is inserted into the inner wall surface of the crankshaft under light pressure, and the outer periphery of the oil stopper and the inner wall surface are sealed to form a recessed oil reservoir inside the crankshaft. A hermetic rotary compressor characterized by being equipped with a crankshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15077788A JP2583977B2 (en) | 1988-06-17 | 1988-06-17 | Hermetic rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15077788A JP2583977B2 (en) | 1988-06-17 | 1988-06-17 | Hermetic rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01318786A true JPH01318786A (en) | 1989-12-25 |
| JP2583977B2 JP2583977B2 (en) | 1997-02-19 |
Family
ID=15504198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15077788A Expired - Fee Related JP2583977B2 (en) | 1988-06-17 | 1988-06-17 | Hermetic rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583977B2 (en) |
-
1988
- 1988-06-17 JP JP15077788A patent/JP2583977B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2583977B2 (en) | 1997-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |