JPH08247070A - Low pressure type rotary refrigerant compressor - Google Patents
Low pressure type rotary refrigerant compressorInfo
- Publication number
- JPH08247070A JPH08247070A JP5431495A JP5431495A JPH08247070A JP H08247070 A JPH08247070 A JP H08247070A JP 5431495 A JP5431495 A JP 5431495A JP 5431495 A JP5431495 A JP 5431495A JP H08247070 A JPH08247070 A JP H08247070A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- bearing
- oil
- vane groove
- vane
- 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】本発明は低圧式回転型冷媒圧縮機
の給油機構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply mechanism for a low-pressure rotary refrigerant compressor.
【０００２】[0002]
【従来の技術】従来例として例えば、特開平６−２５７
５７８号公報等に記載されているものがある。2. Description of the Related Art As a conventional example, for example, Japanese Patent Laid-Open No. 6-257.
Some are described in Japanese Patent No. 578, etc.
【０００３】従来例を図５及び６を用いて説明する。図
５及び６において、１は密閉ケーシング、２はこの密閉
ケーシング１内に配設されたシリンダ、３はこのシリン
ダ２の軸心位置に配設され、偏芯部を有するシャフト、
４は上記シリンダ２の一端部に配設された主軸受であ
る。A conventional example will be described with reference to FIGS. In FIGS. 5 and 6, 1 is a closed casing, 2 is a cylinder arranged in the closed casing 1, 3 is a shaft arranged at the axial center of the cylinder 2 and having an eccentric portion,
Reference numeral 4 is a main bearing arranged at one end of the cylinder 2.
【０００４】５はシリンダ２の主軸受４と反対側の端部
に配設された副軸受、６はシリンダ２内を偏芯回転する
ローラ、７はシリンダ等により形成される圧縮室で、高
圧室８と低圧室９を有する。Reference numeral 5 is a sub-bearing arranged at the end of the cylinder 2 opposite to the main bearing 4, 6 is a roller for eccentrically rotating in the cylinder 2, 7 is a compression chamber formed by the cylinder or the like, and has a high pressure. It has a chamber 8 and a low pressure chamber 9.
【０００５】１０は低圧室８と高圧室９を仕切るベー
ン、１１は前記ベーン１０を保持するベーン溝、１２は
電動機要素、１３は潤滑油、１４はシステムからの冷媒
を圧縮室７へ導く冷媒吸入経路である。Reference numeral 10 is a vane for partitioning the low pressure chamber 8 from the high pressure chamber 9, 11 is a vane groove for holding the vane 10, 12 is a motor element, 13 is lubricating oil, and 14 is a refrigerant for guiding the refrigerant from the system to the compression chamber 7. It is an inhalation route.
【０００６】つぎに動作について説明する。電動機要素
９によりシャフト３が駆動されると、シャフト３の主軸
受４及び副軸受５の軸受部及びローラ６内周部へ給油さ
れる。また、ローラ６がシリンダ２内を偏芯回転し、そ
のローラ６にベーン８が常に圧接することにより、圧縮
室７内で冷媒が圧縮され、吐出管１５を介して密閉ケー
シング１の外の高圧配管へ放出される。Next, the operation will be described. When the shaft 3 is driven by the electric motor element 9, oil is supplied to the bearing portions of the main bearing 4 and the auxiliary bearing 5 of the shaft 3 and the inner peripheral portion of the roller 6. Further, the roller 6 is eccentrically rotated in the cylinder 2, and the vane 8 is constantly in pressure contact with the roller 6, whereby the refrigerant is compressed in the compression chamber 7 and the high pressure outside the hermetic casing 1 via the discharge pipe 15. It is released to the pipe.
【０００７】シリンダ２内への潤滑油１３の給油は、圧
縮機底部に溜まった潤滑油１３と冷媒吸入経路１４を連
絡する給油穴１６を通して冷媒吸入経路１４と密閉ケー
シング１間に発生する若干の圧力差を利用しておこなわ
れる。The lubrication oil 13 is supplied to the cylinder 2 through the lubrication oil 13 accumulated at the bottom of the compressor and an oil supply hole 16 which connects the refrigerant suction passage 14 to the refrigerant suction passage 14 and the closed casing 1. This is done using the pressure difference.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら上記従来
の構造では、シリンダの低圧室と密閉ケーシング内との
圧力差がほとんど生じないため、シリンダの低圧室側ベ
ーン溝への給油が十分できないという問題点を有してい
た。However, in the above-mentioned conventional structure, since there is almost no pressure difference between the low pressure chamber of the cylinder and the closed casing, it is not possible to sufficiently supply the vane groove on the low pressure chamber side of the cylinder. Had.
【０００９】また、上記従来の構造では、シリンダ内へ
供給される潤滑油量は運転条件により大きく変化し、吸
入ガスの圧力が高い場合は、過大な量の潤滑油が供給さ
れるため、システムにおける熱交換が低下したり、圧縮
機内の潤滑油量が不足する等の問題点を有していた。Further, in the above-mentioned conventional structure, the amount of lubricating oil supplied to the cylinder largely changes depending on operating conditions, and when the pressure of the suction gas is high, an excessive amount of lubricating oil is supplied, so that the system However, there are problems such as a decrease in heat exchange in the compressor and an insufficient amount of lubricating oil in the compressor.
【００１０】この発明は、上記のような問題点を解決す
るためになされたもので、低圧式回転型圧縮機におい
て、シリンダの低圧室側ベーン溝への安定した給油がで
きる給油装置を提供し、更にシリンダの低圧室への安定
した給油ができる給油装置を提供することを目的とす
る。The present invention has been made to solve the above problems, and provides an oil supply device capable of stably supplying oil to the low pressure chamber side vane groove of a cylinder in a low pressure rotary compressor. Another object of the present invention is to provide an oil supply device capable of stable oil supply to the low pressure chamber of the cylinder.
【００１１】[0011]
【課題を解決するための手段】上記目的を達成するため
に本発明では、主軸受または副軸受に、一端をシャフト
軸受部に開口し、他端を前記ベーン溝へ開口した給油穴
を設けた構成を備えたものである。In order to achieve the above object, according to the present invention, a main bearing or an auxiliary bearing is provided with an oil supply hole having one end opened to a shaft bearing portion and the other end opened to the vane groove. It has a configuration.
【００１２】また、低圧室側ベーン溝に潤滑油保持用の
油溝を備え主軸受と副軸受を連絡するようした構成を備
えている。Further, the low pressure chamber side vane groove is provided with an oil groove for retaining lubricating oil so as to connect the main bearing and the sub bearing.
【００１３】また、一端を低圧室側ベーン溝に設けられ
た油溝に開口し、他端をシリンダ内あるいは冷媒吸入路
に開口した給油路を設けた構成を備えている。Further, there is provided a construction in which one end is opened to an oil groove provided in the low pressure chamber side vane groove and the other end is provided with an oil supply passage opened to the inside of the cylinder or the refrigerant suction passage.
【００１４】また、上記目的を達成するために本発明で
は、主軸受あるいは副軸受に、一端をシャフト軸受部に
開口し、他端を圧縮室に開口した給油穴を設けた構成を
備えたものである。In order to achieve the above object, the present invention is provided with a structure in which a main bearing or a sub-bearing is provided with an oil supply hole having one end opened to a shaft bearing portion and the other end opened to a compression chamber. Is.
【００１５】[0015]
【作用】本発明は上記した構成により、主軸受または副
軸受より給油穴を通して、給油された潤滑油はシリンダ
のベーン溝へ供給される。この潤滑油はシャフトの回転
により発生する油圧によりベーン溝内へ押し出され、ベ
ーンの運動によりベーンとベーン溝間の摺動面に行き渡
り潤滑することができる。According to the present invention, the lubricating oil supplied from the main bearing or the auxiliary bearing is supplied to the vane groove of the cylinder through the oil supply hole. This lubricating oil is pushed out into the vane groove by the hydraulic pressure generated by the rotation of the shaft, and the movement of the vane makes it possible to spread and lubricate the sliding surface between the vane and the vane groove.
【００１６】また、ベーン溝に潤滑油保持用の油溝を主
軸受と副軸受を連絡するように設けることにより、軸受
より供給された潤滑油を貯め、ベーンとベーン溝間の潤
滑をより容易にさせることができる。Further, by providing an oil groove for retaining lubricating oil in the vane groove so as to connect the main bearing and the auxiliary bearing, the lubricating oil supplied from the bearing is stored, and the lubrication between the vane and the vane groove is easier. You can
【００１７】また、一端を低圧室側ベーン溝に設けられ
た油溝に開口し、他端をシリンダ内あるいは冷媒吸入路
に開口した給油路を設けることにより、軸受より供給さ
れた潤滑油をベーン溝の潤滑とともにシリンダ内への潤
滑に兼用することができ、低コストで各摺動部の潤滑油
の供給が可能となる。Further, the lubricating oil supplied from the bearing is vaneed by providing an oil supply passage having one end opened to the oil groove provided in the low pressure chamber side vane groove and the other end opened to the inside of the cylinder or the refrigerant suction passage. It can be used both for lubrication of the groove and for lubrication into the cylinder, and it is possible to supply lubricating oil to each sliding portion at low cost.
【００１８】また、本発明では、主軸受あるいは副軸受
に、一端をシャフト軸受部に開口し、他端を圧縮室に開
口した給油穴を設けた構成により、給油穴へ供給される
潤滑油はシャフトの回転により油圧が発生しており、か
つ給油穴の軸受開口部は、シャフトに設けられた油溝と
シャフトの１回転に１度だけ合うことにより、給油穴へ
のオイルの供給量は一定量に保つことができる。Further, according to the present invention, the main bearing or the sub bearing is provided with the oil supply hole having one end opened to the shaft bearing portion and the other end opened to the compression chamber. The oil pressure is generated by the rotation of the shaft, and the bearing opening of the oil supply hole matches the oil groove provided on the shaft only once for one rotation of the shaft, so that the amount of oil supplied to the oil supply hole is constant. Can be kept in quantity.
【００１９】[0019]
【実施例】以下本発明の一実施例について図面を参照し
ながら説明する。なお、従来と同一構成については同一
符号を付して詳細な説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the related art are designated by the same reference numerals and detailed description thereof will be omitted.
【００２０】図１において、１〜１４は上記従来装置と
同じ機能を有するものである。１７は給油穴で、その一
端は主軸受４あるいは副軸受５のシャフト軸受部１８に
開口し、他端はベーン溝１１に開口している。In FIG. 1, 1 to 14 have the same functions as those of the conventional device. Reference numeral 17 denotes an oil supply hole, one end of which is opened in the shaft bearing portion 18 of the main bearing 4 or the sub bearing 5, and the other end of which is opened in the vane groove 11.
【００２１】圧縮機の運転によりシャフト３が回転し、
給油管１９を通し、密閉ケーシング１の底部に溜まって
いる潤滑油１３を汲み上げシャフト軸受部１８を潤滑す
る。このシャフト軸受部１８にある潤滑油１３はシャフ
ト３の回転により油圧が発生しており、給油穴１７のも
う一方の開口部であるベーン溝１１へ供給される。ベー
ン１０とベーン溝１１の摺動部への潤滑は、この油圧と
ベーン１０の往復運動により行われる。The shaft 3 is rotated by the operation of the compressor,
Through the oil supply pipe 19, the lubricating oil 13 accumulated at the bottom of the closed casing 1 is pumped up to lubricate the shaft bearing portion 18. The lubricating oil 13 in the shaft bearing portion 18 is hydraulically generated by the rotation of the shaft 3, and is supplied to the vane groove 11 which is the other opening of the oil supply hole 17. Lubrication of the sliding portion between the vane 10 and the vane groove 11 is performed by this hydraulic pressure and the reciprocating motion of the vane 10.
【００２２】図２において、２０はベーン溝１１に設け
られた油溝で、主軸受４と副軸受５を連絡するように設
けられており、給油穴１７より供給された潤滑油１３を
保持することにより、ベーン１０とベーン溝１１間の潤
滑をより容易に且つ全体的に行うことができる。In FIG. 2, reference numeral 20 denotes an oil groove provided in the vane groove 11, which is provided so as to connect the main bearing 4 and the sub bearing 5 and holds the lubricating oil 13 supplied from the oil supply hole 17. Thus, lubrication between the vane 10 and the vane groove 11 can be performed more easily and entirely.
【００２３】図３において、２１は給油路で、一端をベ
ーン溝１１に開口し、他端をシリンダ２内あるいは冷媒
吸入経路１４に開口してある。ベーン溝１１に溜まって
いる潤滑油１３をこの給油路２１を設けることによりベ
ーン溝１１の潤滑とともに余った量はシリンダ内２への
潤滑に兼用することができ、低コストで各摺動部の潤滑
油の供給が可能となる。In FIG. 3, reference numeral 21 denotes an oil supply passage, one end of which is opened to the vane groove 11 and the other end of which is opened to the inside of the cylinder 2 or the refrigerant suction passage 14. By providing the oil supply passage 21 with the lubricating oil 13 accumulated in the vane groove 11, the remaining amount can be used for the lubrication of the vane groove 11 as well as for the lubrication to the inside 2 of the cylinder. Lubricating oil can be supplied.
【００２４】図４において、１７は給油穴で、その一端
は主軸受４あるいは副軸受５のシャフト軸受部１８に開
口し、他端は圧縮室７に開口している。シャフト軸受部
１８の潤滑油はシャフト３の回転により油圧が発生して
おり、かつ給油穴１７の軸受開口部は、シャフト３に設
けられた油溝とシャフトの１回転に１度だけ合うので、
給油穴１７へのオイルの供給量は一定量に保ちながらも
う一方の開口部である圧縮室７へ潤滑油１３を供給する
ことができる。In FIG. 4, reference numeral 17 denotes an oil supply hole, one end of which is opened in the shaft bearing portion 18 of the main bearing 4 or the sub bearing 5, and the other end of which is opened in the compression chamber 7. Since the lubricating oil of the shaft bearing portion 18 is hydraulically generated by the rotation of the shaft 3, and the bearing opening portion of the oil supply hole 17 is aligned with the oil groove provided in the shaft 3 once for one rotation of the shaft,
It is possible to supply the lubricating oil 13 to the compression chamber 7, which is the other opening, while keeping the amount of oil supplied to the oil supply hole 17 constant.
【００２５】[0025]
【発明の効果】以上のように、本発明の給油機構は、主
軸受または副軸受に、一端をシャフト軸受部に開口し、
他端を前記ベーン溝へ開口した給油穴を設けた構成を備
えることにより、ベーン溝への給油をシャフトの回転に
より発生する油圧により強制的に行うことができる。As described above, in the oil supply mechanism of the present invention, the main bearing or the sub bearing is opened at one end into the shaft bearing portion,
By providing the oil supply hole having the other end opened to the vane groove, the oil can be forcibly supplied to the vane groove by the hydraulic pressure generated by the rotation of the shaft.
【００２６】また、低圧室側ベーン溝に潤滑油保持用の
油溝を備え主軸受と副軸受を連絡するようした構成を備
えることにより、ベーンとベーン溝間の潤滑をより容易
に且つ全面的にさせることができる。Further, by providing the vane groove on the low-pressure chamber side with an oil groove for retaining lubricating oil so as to connect the main bearing and the auxiliary bearing, the lubrication between the vane and the vane groove can be performed more easily and entirely. You can
【００２７】また、一端を低圧室側ベーン溝に設けられ
た油溝に開口し、他端をシリンダ内あるいは冷媒吸入路
に開口した給油路を設けた構成にすることにより、軸受
より供給された潤滑油をベーン溝の潤滑とともにシリン
ダ内への潤滑に兼用することができ、低コストで各摺動
部の潤滑油の供給が可能となる。Also, one end is opened to an oil groove provided in the low pressure chamber side vane groove, and the other end is provided with an oil supply passage opening to the inside of the cylinder or to the refrigerant suction passage, so that the oil is supplied from the bearing. Lubricating oil can be used both for lubrication of the vane groove and for lubrication into the cylinder, and the lubricating oil can be supplied to each sliding portion at low cost.
【００２８】また、上記目的を達成するために本発明で
は、主軸受あるいは副軸受に、一端をシャフト軸受部に
開口し、他端を圧縮室に開口した給油穴を設けた構成を
備えることにより、給油穴へ供給される潤滑油はシャフ
トの回転により油圧が発生しており、かつ給油穴の軸受
開口部は、シャフトに設けられた油溝とシャフトの１回
転に１度だけ合うことにより、給油穴へのオイルの供給
量は一定量に保つことができる。In order to achieve the above object, according to the present invention, the main bearing or the sub bearing is provided with an oil supply hole having one end opened to the shaft bearing portion and the other end opened to the compression chamber. The lubricating oil supplied to the oil supply hole is hydraulically generated by the rotation of the shaft, and the bearing opening of the oil supply hole is aligned with the oil groove provided on the shaft only once for one rotation of the shaft. The amount of oil supplied to the oil supply hole can be kept constant.
【図１】本発明の一実施例の低圧式回転型冷媒圧縮機の
縦断面図FIG. 1 is a longitudinal sectional view of a low-pressure rotary refrigerant compressor according to an embodiment of the present invention.
【図２】本発明の他の実施例の低圧式回転型冷媒圧縮機
の縦断面図FIG. 2 is a vertical sectional view of a low-pressure rotary refrigerant compressor according to another embodiment of the present invention.
【図３】本発明の他の実施例の低圧式回転型冷媒圧縮機
の縦断面図FIG. 3 is a vertical sectional view of a low-pressure rotary refrigerant compressor according to another embodiment of the present invention.
【図４】本発明の他の実施例の低圧式回転型冷媒圧縮機
の縦断面図FIG. 4 is a vertical sectional view of a low-pressure rotary refrigerant compressor according to another embodiment of the present invention.
【図５】従来の低圧式回転型冷媒圧縮機の縦断面図FIG. 5 is a vertical sectional view of a conventional low-pressure rotary refrigerant compressor.
【図６】従来の低圧式回転型冷媒圧縮機の横断面図FIG. 6 is a cross-sectional view of a conventional low pressure rotary refrigerant compressor.
１ 密閉ケーシング ２ シリンダ ３ シャフト ４ 主軸受 ５ 副軸受 ６ ローラ ７ 圧縮室 ８ 高圧室 ９ 低圧室 １０ ベーン １１ ベーン溝 １３ 潤滑油 １４ 冷媒吸入経路 １７ 給油穴 １８ シャフト軸受部 ２０ ベーン溝の油溝 ２１ 給油路 1 Sealed Casing 2 Cylinder 3 Shaft 4 Main Bearing 5 Secondary Bearing 6 Roller 7 Compression Chamber 8 High Pressure Chamber 9 Low Pressure Chamber 10 Vane 11 Vane Groove 13 Lubricating Oil 14 Refrigerant Suction Path 17 Oil Supply Hole 18 Shaft Bearing 20 Oil Vane Groove 21 Refueling passage
Claims (4)
内に収納されたシリンダと、前記シリンダの両端に固定
された主軸受および副軸受と前記主軸受と副軸受内に回
転自在に収納され、シャフトに嵌められ前記シリンダ内
を偏芯回転するローラと、前記シリンダに設けられたベ
ーン溝と、前記ベーン溝内を往復し前記ローラと当接す
ることにより前記シリンダ内を低圧室と高圧室に分割す
るベーンとを備え、前記主軸受あるいは副軸受に、一端
をシャフト軸受部に開口し、他端を前記ベーン溝へ開口
した給油穴を設けたことを特徴とする低圧式回転型冷媒
圧縮機。1. A hermetic casing, a cylinder housed in the hermetic casing, a main bearing and a sub bearing fixed to both ends of the cylinder, and a main bearing and a sub bearing rotatably housed in a shaft. A roller fitted and rotating eccentrically in the cylinder, a vane groove provided in the cylinder, and a vane that reciprocates in the vane groove and contacts the roller to divide the inside of the cylinder into a low pressure chamber and a high pressure chamber. A low-pressure rotary refrigerant compressor, comprising: a main bearing or a sub-bearing, and an oil supply hole having one end opened to a shaft bearing portion and the other end opened to the vane groove.
滑油保持用の油溝を設けた請求項１記載の低圧式回転型
冷媒圧縮機。2. The low-pressure rotary refrigerant compressor according to claim 1, wherein the vane groove is provided with an oil groove for holding a lubricating oil that connects the main bearing and the auxiliary bearing.
一端を前記ベーン溝の油溝に開口し、他端を前記シリン
ダ内あるいは冷媒吸入経路に開口した給油路を設けた請
求項１記載の低圧式回転型冷媒圧縮機。3. An oil groove for retaining lubricating oil is provided in the vane groove,
The low-pressure rotary refrigerant compressor according to claim 1, wherein an oil supply passage having one end opened to an oil groove of the vane groove and the other end opened to the inside of the cylinder or a refrigerant suction passage is provided.
内に収納されたシリンダと、前記シリンダの両端に固定
された主軸受および副軸受と前記主軸受と副軸受内に回
転自在に収納され、シャフトに嵌められ前記シリンダ内
を偏芯回転するローラと、前記シリンダに設けられたベ
ーン溝と、前記ベーン溝内を往復し前記ローラと当接す
ることにより前記シリンダ内を低圧室と高圧室に分割す
るベーンとを備え、前記主軸受あるいは副軸受に、一端
をシャフト軸受部に開口し、他端を圧縮室に開口した給
油穴を設けたことを特徴とする低圧式回転型冷媒圧縮
機。4. A hermetically sealed casing, a cylinder housed in the hermetically sealed casing, a main bearing and a sub bearing fixed to both ends of the cylinder, and a main bearing and a sub bearing rotatably housed in the shaft. A roller fitted and rotating eccentrically in the cylinder, a vane groove provided in the cylinder, and a vane that reciprocates in the vane groove and contacts the roller to divide the inside of the cylinder into a low pressure chamber and a high pressure chamber. A low-pressure rotary refrigerant compressor, characterized in that the main bearing or the sub-bearing is provided with an oil supply hole having one end opened to a shaft bearing portion and the other end opened to a compression chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5431495A JPH08247070A (en) | 1995-03-14 | 1995-03-14 | Low pressure type rotary refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5431495A JPH08247070A (en) | 1995-03-14 | 1995-03-14 | Low pressure type rotary refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08247070A true JPH08247070A (en) | 1996-09-24 |
Family
ID=12967131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5431495A Pending JPH08247070A (en) | 1995-03-14 | 1995-03-14 | Low pressure type rotary refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08247070A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006257987A (en) * | 2005-03-17 | 2006-09-28 | Sanyo Electric Co Ltd | Hermetic compressor |
| JP2006283580A (en) * | 2005-03-31 | 2006-10-19 | Sanyo Electric Co Ltd | Hermetic compressor and manufacturing method |
-
1995
- 1995-03-14 JP JP5431495A patent/JPH08247070A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006257987A (en) * | 2005-03-17 | 2006-09-28 | Sanyo Electric Co Ltd | Hermetic compressor |
| JP2006283580A (en) * | 2005-03-31 | 2006-10-19 | Sanyo Electric Co Ltd | Hermetic compressor and manufacturing method |
| JP4545030B2 (en) * | 2005-03-31 | 2010-09-15 | 三洋電機株式会社 | Hermetic compressor and manufacturing method |
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