JPH0432235B2 - - Google Patents
Info
- Publication number
- JPH0432235B2 JPH0432235B2 JP23051586A JP23051586A JPH0432235B2 JP H0432235 B2 JPH0432235 B2 JP H0432235B2 JP 23051586 A JP23051586 A JP 23051586A JP 23051586 A JP23051586 A JP 23051586A JP H0432235 B2 JPH0432235 B2 JP H0432235B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil supply
- drive shaft
- supply passage
- 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.)
- Expired
Links
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000005461 lubrication Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Landscapes
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、圧縮機、詳しくは、圧縮要素とモー
タとを備え、該モータの駆動軸を管状体として、
その下端部に給油ポンプを設け、前記駆動軸の内
部を給油通路として遠心力で給油するごとくした
圧縮機に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a compressor, more specifically, a compressor comprising a compression element and a motor, the drive shaft of the motor being a tubular body,
The present invention relates to a compressor in which an oil supply pump is provided at the lower end of the compressor, and the inside of the drive shaft is used as an oil supply passage to supply oil by centrifugal force.
（従来の技術）
従来この種圧縮機としては、例えば実開昭60−
171985号公報に記載され、また第３図に示すよう
なスクロール形式のものがあり、密閉ケーシング
Ｘ１の内部上方に、固定及び公転スクロールＸ
２，Ｘ３から成る圧縮要素Ｘ４を配置すると共
に、下方に、モータＸ５を配置して、該モータＸ
５の駆動軸Ｘ７を前記圧縮要素Ｘ４における公転
スクロールＸ３に連動する一方、前記駆動軸Ｘ７
を筒状体と成してその内部に給油通路Ｘ７ａを形
成し、その下端部に給油ポンプＸ９を設けて該ポ
ンプＸ９を前記ケーシングＸ１の底部油溜めXA
に臨ませ、前記駆動軸Ｘ７の回転に伴う遠心力に
より、前記給油通路Ｘ７ａの上方に油を汲上げ、
前記駆動軸Ｘ７の軸受部Ｘ８や、前記圧縮要素Ｘ
４の摺動部等に給油するごとくしている。(Prior art) Conventionally, as this type of compressor, for example, the
171985, and as shown in Fig. 3, there is a scroll type type, in which a fixed and revolving scroll
A compression element X4 consisting of 2 and X3 is arranged, and a motor
5 is interlocked with the revolving scroll X3 in the compression element X4, while the drive shaft X7
is formed into a cylindrical body, and an oil supply passage X7a is formed inside thereof, and an oil supply pump X9 is provided at the lower end thereof, and the pump X9 is connected to the bottom oil sump XA of the casing X1.
pumping up oil above the oil supply passage X7a by centrifugal force accompanying the rotation of the drive shaft X7,
The bearing portion X8 of the drive shaft X7 and the compression element X
It is like lubricating the sliding parts of No. 4.
（発明が解決しようとする問題点）
ところで、上記のごとく駆動軸Ｘ７として筒状
体を用い、その内部を給油通路Ｘ７ａとして使用
するものにあつては、前記駆動軸Ｘ７の回転中心
は、切削及び研磨加工がなされる外径で決まるこ
ととなるため、内径である前記給油通路Ｘ７ａを
切削及び研磨加工を行わない所謂黒皮とした場
合、その中心は、前記駆動軸Ｘ７の回転中心から
ずれることがある。(Problems to be Solved by the Invention) By the way, in the case where a cylindrical body is used as the drive shaft X7 and the inside thereof is used as the oil supply passage X7a, the center of rotation of the drive shaft X7 is Since it is determined by the outer diameter to which the polishing process is performed, if the oil supply passage X7a, which is the inner diameter, is made into a so-called black skin without cutting or polishing, its center will be shifted from the rotation center of the drive shaft X7. Sometimes.
このため、前記給油通路Ｘ７ａから汲上げられ
る油は、前記駆動軸Ｘ７の回転中心から偏つて流
れることとなり、又前記給油通路Ｘ７ａにおいて
油の滞留を招いてしまつて、上記した軸受Ｘ８等
の各部給油箇所への給油が不良となる問題が起こ
るのであつた。 For this reason, the oil pumped up from the oil supply passage X7a flows deviated from the center of rotation of the drive shaft X7, and also causes oil to stagnate in the oil supply passage X7a, causing various parts of the bearing X8, etc. A problem occurred in which the oil supply to the oil supply points was inadequate.
一方この問題を解消するために、前記給油通路
Ｘ７ａの内径を、その長さ方向に全長にわたつて
切削及び研磨加工し、該給油通路Ｘ７ａの中心を
前記駆動軸Ｘ７の回転中心と合致させるようにし
た場合には、加工工数がかさみ、コストアツプと
なる問題が起こるのであつた。 On the other hand, in order to solve this problem, the inner diameter of the oil supply passage X7a is cut and polished over its entire length in the length direction, so that the center of the oil supply passage X7a coincides with the rotation center of the drive shaft X7. In this case, the number of processing steps increases and the cost increases.
本発明の目的は、給油箇所近くのみを、例えば
切削及び研磨加工等をして、芯出しを行うことに
より、コストアツプを招くことなく、良好な給油
が行える圧縮機を提供する点にある。 An object of the present invention is to provide a compressor that can perform good lubrication without increasing costs by centering only the area near the lubrication point by, for example, cutting and polishing.
（問題点を解決するための手段）
そこで本発明は、圧縮要素４とモータ５とを備
え、該モータ５の駆動軸７を管状体として、その
下端部に給油ポンプ９を設け、前記駆動軸７の内
部を給油通路として遠心力で給油するごとくした
圧縮機であつて、前記駆動軸７を非加工筒状体に
より構成すると共に、前記駆動軸７の上部で、給
油箇所近くの内周面のみ芯出しをしていることを
特徴とするものである。(Means for Solving the Problems) Therefore, the present invention includes a compression element 4 and a motor 5, a drive shaft 7 of the motor 5 is a tubular body, an oil supply pump 9 is provided at the lower end thereof, and the drive shaft The compressor is configured such that the inside of the drive shaft 7 is an oil supply passage and oil is supplied by centrifugal force. It is characterized by being centered only.
（作用）
駆動軸７の下方に設ける給油ポンプ９から汲上
げられる油は、該駆動軸７の内部に形成される給
油通路を上昇し、芯出しを行つた前記駆動軸７の
上部で給油箇所近くの内周面により、均一化さ
れ、油の滞留も無くし得て、前記駆動軸７から各
種給油箇所へ良好に給油できることとなるのであ
る。(Function) Oil pumped up from the oil supply pump 9 provided below the drive shaft 7 ascends through the oil supply passage formed inside the drive shaft 7 and reaches the oil supply point at the upper part of the centered drive shaft 7. The nearby inner circumferential surface makes the oil uniform and eliminates oil retention, allowing for good oil supply from the drive shaft 7 to various oil supply points.
（実施例）
第２図は、スクロール形式の圧縮機であつて、
ドーム状の密閉ケーシング１の内部上方に、固定
スクロール２及び公転スクロール３から成る圧縮
要素４を配置すると共に、下方に、ステータ５１
とロータ５２とから成るモータ５を配置し、該モ
ータ５の駆動軸７を、上部及び下部ハウジング６
１，６２に備える軸受８１，８２を介して支持す
る一方、該駆動軸７の上部を、該駆動軸７に一体
形成するカウンタウエイト１４、該カウンターウ
エイト１４にドライブピン１５を介して従動され
るスイングリンク１６、及び自転防止機構を構成
するオルダムリング１７を介して、前記公転スク
ロール３に連動している。(Example) Fig. 2 shows a scroll type compressor,
A compression element 4 consisting of a fixed scroll 2 and a revolving scroll 3 is disposed inside and above the dome-shaped hermetic casing 1, and a stator 51 is disposed below.
and a rotor 52, and a drive shaft 7 of the motor 5 is connected to an upper and a lower housing 6.
1 and 62 through bearings 81 and 82, and the upper part of the drive shaft 7 is driven by a counterweight 14 formed integrally with the drive shaft 7 through a drive pin 15. It is interlocked with the revolving scroll 3 via a swing link 16 and an Oldham ring 17 that constitutes a rotation prevention mechanism.
前記駆動軸７は、筒状体を成し、内部に給油通
路７ａを形成し、この給油通路７ａの下端部に給
油ポンプ８を設けて、前記ケーシング１の底部に
設ける油溜めＡに臨ませ、前記モータ５の回転に
よる該駆動軸７の回転により、前記油溜めＡから
前記給油通路７ａを介して油を汲上げ、前記各軸
受８１，８２並びに、前記スイングリンク１６、
オルダムリング１７等の駆動部分などに給油する
ごくしている。 The drive shaft 7 has a cylindrical shape and has an oil supply passage 7a formed therein, and an oil supply pump 8 is provided at the lower end of the oil supply passage 7a, facing an oil reservoir A provided at the bottom of the casing 1. , oil is pumped up from the oil reservoir A through the oil supply passage 7a by the rotation of the drive shaft 7 due to the rotation of the motor 5, and the bearings 81 and 82 as well as the swing link 16,
It is used to supply oil to driving parts such as the Oldham ring 17.
しかして、以上のように構成する圧縮機におい
て、前記駆動軸７を非加工筒状体により構成する
と共に、前記駆動軸７の上部で、給油箇所近くの
内周面のみ芯出しをするのである。 Therefore, in the compressor constructed as described above, the drive shaft 7 is constructed of an unprocessed cylindrical body, and only the inner peripheral surface near the oil supply point is centered at the upper part of the drive shaft 7. .
すなわち、第１図に示すように、前記駆動軸７
における前記給油通路７ａの上部であつて、前記
スイングリンク１６等への給油箇所近くの内周面
Ｓのみを、前記駆動軸７の回転中心と合致するよ
うに芯出しを行うのである。 That is, as shown in FIG.
Only the inner circumferential surface S near the oil supply point to the swing link 16 and the like at the upper part of the oil supply passage 7a is centered so that it coincides with the center of rotation of the drive shaft 7.
又このとき、前記内周面Ｓの内径Ｄ２を、前記
給油通路７ａの下方側のの非加工面即ち所謂黒皮
のまま残した部分の内径Ｄ１よりも大径と成すの
である。 Also, at this time, the inner diameter D2 of the inner circumferential surface S is made larger than the inner diameter D1 of the unprocessed surface of the lower side of the oil supply passage 7a, that is, the portion left as so-called black crust.
また、前記給油通路７ａの上端にオイルチユー
ブ７０を嵌合し、該オイルチユーブ７０を介し
て、前記給油通路７ａを上昇する油を、第１図中
矢印で示すように、前記スイングリンク１６の下
面凹部に固定する案内板１８に受け渡し、該案内
板１８から前記公転スクロール３のボス部３ａを
受けるベアリング１９に給油するると共に、前記
スイングリンク１６の上下方向に貫通する油通路
２０を経て前記オルダムリング１７や、前記公転
スクロール３の前記ハウジング６１へのスラスト
軸受部２１等へ給油するのである。 Further, an oil tube 70 is fitted to the upper end of the oil supply passage 7a, and the oil flowing up the oil supply passage 7a is directed through the oil tube 70 to the swing link 16 as shown by the arrow in FIG. The oil is delivered to a guide plate 18 fixed in a recessed portion of the lower surface, and is supplied from the guide plate 18 to a bearing 19 that receives the boss portion 3a of the revolving scroll 3, and also passes through an oil passage 20 passing through the swing link 16 in the vertical direction It supplies oil to the Oldham ring 17, the thrust bearing portion 21 to the housing 61 of the revolving scroll 3, and the like.
又このとき、前記オイルチユーブ７０の内径Ｄ
３を、前記給油通路７ａにおいて芯出しを行つた
前記内周面Ｓの内径Ｄ２よりも大径と成すのであ
る。 Also, at this time, the inner diameter D of the oil tube 70
3 is made larger in diameter than the inner diameter D2 of the inner circumferential surface S which is centered in the oil supply passage 7a.
かくして、前記駆動軸７の下方に設ける前記給
油ポンプ９から汲上げられる油は、前記給油通路
７ａを上昇し、芯出しを行つた前記内周面Ｓによ
り、均一化され、又前記給油通路７ａにおける油
の滞留も無くして得て、前記オイルチユーブ７０
から、前記スイングリング１６、オイダルリング
１７などへ良好に給油できることとなるのであ
る。 In this way, the oil pumped up from the oil supply pump 9 provided below the drive shaft 7 rises in the oil supply passage 7a, is made uniform by the centered inner circumferential surface S, and also flows through the oil supply passage 7a. The oil tube 70 is obtained by eliminating the accumulation of oil in the oil tube 70.
Therefore, the swing ring 16, the oil ring 17, etc. can be well supplied with oil.
また、前記給油通路７ａの内径を、前記のごと
く下方から（D1＜D2＜D3）と上方に向かつて大
径とすることにより、該給油通路７ａにおける油
の上昇を一層スムーズなものとできるのである。 Furthermore, by making the inner diameter of the oil supply passage 7a larger from the bottom upward (D1<D2<D3) as described above, the oil can rise even more smoothly in the oil supply passage 7a. be.
尚、本実施例の圧縮機において、冷媒等の圧縮
性流体は、第２図中矢印示すように、吸入管１０
から前記下部ハウジング６２を介して前記モータ
５の下部に導入され、該モータ５のエアギヤツプ
Ｇを上昇して該モータ５を冷却し、前記上部ハウ
ジング６１に設ける吸入孔４０を介して、前記ス
クロール２，３の吸入ポート２３へと導かれ、該
スクロール２，３で圧縮されて吐出孔２４、吐出
弁２５、吐出チヤンバー２６、外部吐出管１００
を介して、外部へと吐出されるのである。 In the compressor of this embodiment, compressible fluid such as refrigerant is transported through the suction pipe 10 as shown by the arrow in FIG.
is introduced into the lower part of the motor 5 through the lower housing 62, ascends the air gap G of the motor 5 to cool the motor 5, and is introduced into the scroll 2 through the suction hole 40 provided in the upper housing 61. , 3, and is compressed by the scrolls 2 and 3 to form a discharge hole 24, a discharge valve 25, a discharge chamber 26, and an external discharge pipe 100.
It is discharged to the outside through the .
（発明の効果）
以上のごとく本発明は、圧縮要素４とモータ５
とを備え、該モータ５の駆動軸７を管状体とし
て、その下端部に給油ポンプ９を設け、前記駆動
軸７の内部を給油通路として遠心力で給油するご
とくした圧縮機であつて、前記駆動軸７を非加工
筒状体により構成すると共に、前記駆動軸７の上
部で、給油箇所近くの内周面のみ芯出しをしてい
ることを特徴とするものであるから、前記駆動軸
７の下方に設ける前記給油ポンプ９から汲上げら
れる油は、該駆動軸７の内部に形成される給油通
路を上昇し、芯出しを行つた前記駆動軸７の上部
で給油箇所近くの内周面により、均一化され、前
記給油通路内での油の滞留も無くして得て、前記
駆動軸７から各種給油箇所へ良好に給油できるの
である。(Effects of the Invention) As described above, the present invention provides the compression element 4 and the motor 5.
A compressor is provided with a drive shaft 7 of the motor 5 as a tubular body, an oil supply pump 9 is provided at the lower end of the drive shaft 7, and the inside of the drive shaft 7 is used as an oil supply passage to supply oil by centrifugal force. The drive shaft 7 is constructed of an unprocessed cylindrical body, and is characterized in that only the inner circumferential surface near the oil supply point at the upper part of the drive shaft 7 is centered. The oil pumped up from the oil supply pump 9 provided below rises through the oil supply passage formed inside the drive shaft 7, and reaches the inner peripheral surface near the oil supply point at the upper part of the centered drive shaft 7. As a result, oil can be uniformized and oil does not stagnate in the oil supply passage, and oil can be supplied from the drive shaft 7 to various oil supply points in a good manner.
しかも、芯出し加工を行う部分を、前記駆動軸
７の上部のみの必要最小限にとどめたものである
から、コストアツプを招く弊害もなくすることが
できるのである。 Furthermore, since the centering portion is kept to the minimum required only on the upper part of the drive shaft 7, it is possible to eliminate the disadvantage of increasing costs.
第１図は本発明圧縮機の要部を示す断面図、第
２図は同圧縮機の全体を示す縦断面図、第３図は
従来の圧縮機を示す縦断面図である。
４……圧縮要素、５……モータ、７……駆動
軸、９……給油ポンプ。
FIG. 1 is a sectional view showing essential parts of the compressor of the present invention, FIG. 2 is a longitudinal sectional view showing the entire compressor, and FIG. 3 is a longitudinal sectional view showing a conventional compressor. 4...Compression element, 5...Motor, 7...Drive shaft, 9...Oil supply pump.
Claims (1)
の駆動軸７を管状体として、その下端部に給油ポ
ンプ９を設け、前記駆動軸７の内部を給油通路と
して遠心力で給油するごとくした圧縮機であつ
て、前記駆動軸７を非加工筒状体により構成する
と共に、前記駆動軸７の上部で、給油箇所近くの
内周面のみ芯出しをしていることを特徴とする圧
縮機。1 comprising a compression element 4 and a motor 5, the motor 5
The drive shaft 7 is a tubular body, an oil supply pump 9 is provided at the lower end thereof, and the inside of the drive shaft 7 is used as an oil supply passage to supply oil by centrifugal force. A compressor characterized in that it is constituted by a shaped body and that only the inner circumferential surface near the oil supply point at the upper part of the drive shaft 7 is centered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23051586A JPS6385271A (en) | 1986-09-29 | 1986-09-29 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23051586A JPS6385271A (en) | 1986-09-29 | 1986-09-29 | Compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6385271A JPS6385271A (en) | 1988-04-15 |
| JPH0432235B2 true JPH0432235B2 (en) | 1992-05-28 |
Family
ID=16908959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23051586A Granted JPS6385271A (en) | 1986-09-29 | 1986-09-29 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6385271A (en) |
-
1986
- 1986-09-29 JP JP23051586A patent/JPS6385271A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6385271A (en) | 1988-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |