JPH0281987A - Compressor - Google Patents
CompressorInfo
- Publication number
- JPH0281987A JPH0281987A JP23396188A JP23396188A JPH0281987A JP H0281987 A JPH0281987 A JP H0281987A JP 23396188 A JP23396188 A JP 23396188A JP 23396188 A JP23396188 A JP 23396188A JP H0281987 A JPH0281987 A JP H0281987A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- oil
- communication hole
- bearing
- refrigerant
- 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
- 239000003507 refrigerant Substances 0.000 abstract description 15
- 239000003595 mist Substances 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 238000005057 refrigeration Methods 0.000 description 7
- 230000001050 lubricating effect Effects 0.000 description 4
- 206010010904 Convulsion Diseases 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Landscapes
- 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aAは冷凍サイクル等に使用する圧縮機に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a compressor used in a refrigeration cycle or the like.
従来の技術
以下図面を参照しながら、−例として従来のロータリー
型圧縮機について説明する。BACKGROUND OF THE INVENTION A conventional rotary compressor will be described by way of example with reference to the drawings.
第3図は従来のロータリー型圧縮機の断面を示すもので
ある。第3図において、1は密閉ケーシング、2はモー
タ、3は下軸受、4は上軸受、5はシリンダ、6はピス
トン、7はベーン、8はシャ7)、9はシャフト上端に
あるシャフト上端部軸受である。また、10はシャフト
8の偏心部、11はシャフト8に設けた給油孔、12は
シリンダ5とピストン6の間で形成される圧縮室、13
は圧縮室12に冷媒を吸入する吸入孔、14は上軸受4
に設けた吐出孔、16は吐出弁である。16は吸入孔1
3と連通ずる吸入管、17は密閉ケーシング1に設けた
吐出管である。また、18は下軸受3.上軸受4.シリ
ンダ5.ピストン6で構成された機械部であり、機械部
18の上部にモータ2が位置し、モータ2の上部にシャ
フト上端部軸受9が位置する構成となっている。また、
シャフト上端部軸受9には冷媒通路19が設けられ、さ
らに密閉ケーシング1の底部には潤滑油20が溜まって
いる。FIG. 3 shows a cross section of a conventional rotary compressor. In Figure 3, 1 is a closed casing, 2 is a motor, 3 is a lower bearing, 4 is an upper bearing, 5 is a cylinder, 6 is a piston, 7 is a vane, 8 is a shaft 7), 9 is an upper end of the shaft at the upper end of the shaft It is a partial bearing. Further, 10 is an eccentric portion of the shaft 8, 11 is an oil supply hole provided in the shaft 8, 12 is a compression chamber formed between the cylinder 5 and the piston 6, and 13
14 is a suction hole that sucks refrigerant into the compression chamber 12, and 14 is an upper bearing 4.
16 is a discharge valve. 16 is suction hole 1
3 is a suction pipe that communicates with the casing 1, and 17 is a discharge pipe provided in the sealed casing 1. 18 is the lower bearing 3. Upper bearing 4. Cylinder 5. It is a mechanical part composed of a piston 6, a motor 2 is located above the mechanical part 18, and a shaft upper end bearing 9 is located above the motor 2. Also,
A refrigerant passage 19 is provided in the shaft upper end bearing 9, and lubricating oil 20 is collected at the bottom of the sealed casing 1.
以上のように構成されたロータリー型圧縮機について以
下その動作について説明する。The operation of the rotary compressor configured as above will be explained below.
モータ2.シャフト8の回転に伴って、吸入管16から
吸入孔13を掻で吸入された冷媒ガスは圧縮室12で圧
縮され、吐出孔14から密閉ケシフグ1内に吐出された
後、冷媒通路19を通って吐出管17から冷凍サイク/
I/(図示せず)に吐出される。Motor 2. As the shaft 8 rotates, the refrigerant gas is sucked in from the suction pipe 16 through the suction hole 13 and is compressed in the compression chamber 12 and discharged from the discharge hole 14 into the sealed keshifugu 1, and then passes through the refrigerant passage 19. from the discharge pipe 17 to the refrigeration cycle/
I/ (not shown).
発明が解決しようとする課題
しかし、」二記構成において、上軸受4を潤滑し終えた
油や、吐出孔14から吐出された冷媒に含まれた油はミ
スト状になって上方に流れ、吐出管17から冷凍サイク
ルに油が冷媒とともに吐出されるため、冷凍サイクルに
油が流出してしまい、摺動部の焼きつき、能力の低下と
いう課題を有していた。Problem to be Solved by the Invention However, in the configuration described in Section 2, the oil that has finished lubricating the upper bearing 4 and the oil contained in the refrigerant discharged from the discharge hole 14 flow upward in the form of mist and are discharged. Since oil is discharged from the pipe 17 into the refrigeration cycle together with the refrigerant, the oil leaks into the refrigeration cycle, causing problems such as seizing of sliding parts and reduction in performance.
本発明は上記課題に鑑み、冷凍サイクルへの油流出の少
ない圧縮機を提供するものである。In view of the above problems, the present invention provides a compressor that causes less oil leakage into the refrigeration cycle.
課題を解決するための手段
上記課題を解決するために本発明の圧縮機は、密閉ケー
シング内に機械部と前記機械部の上部にモータを備える
とともに前記機械部と前記モータをシャフトで連結し、
前記シャフト上端部を支持するシャフト上端部軸受を設
け、前記シャフトにのみ、前記シャフト上端部軸受の上
方と下方を連通ずる連通穴を設けたものである。Means for Solving the Problems In order to solve the above problems, the compressor of the present invention includes a mechanical part in a sealed casing and a motor above the mechanical part, and connects the mechanical part and the motor with a shaft,
A shaft upper end bearing that supports the shaft upper end is provided, and a communication hole is provided only in the shaft to communicate between the upper and lower parts of the shaft upper end bearing.
作 用
本発明は上記した構成によって、上軸受を潤滑し終えた
油や、吐出孔から冷媒とともに吐出された油はミスト状
になって上方に流れるが、シャフトの連通穴を通過する
時に、シャフトの回転にともなって発生する遠心力で油
が分離して外側に飛び密閉ケーシング壁面を伝って下方
に流れ、冷媒のみがシャフト連通穴を経て吐出管から冷
凍サイクルに吐出されるため、油流出を低減でき、摺動
部の焼きつき、能力の低下を防止することができる。According to the above-described structure, the oil that has finished lubricating the upper bearing and the oil that has been discharged from the discharge hole together with the refrigerant flows upward in the form of a mist, but when passing through the communication hole of the shaft, The oil is separated by the centrifugal force generated as it rotates, flies outward, flows downward along the wall of the sealed casing, and only the refrigerant passes through the shaft communication hole and is discharged from the discharge pipe into the refrigeration cycle, preventing oil spills. It is possible to prevent seizure of sliding parts and decrease in performance.
実施例
以下本発明の一実施例のロータリー型圧縮機について、
図面を参照しながら説明するが、従来と同一構成につい
ては同一番号を付してその詳細な説明を省略する。Example Below, regarding a rotary compressor according to an example of the present invention,
The description will be made with reference to the drawings, but the same components as those of the prior art will be given the same reference numerals and detailed description thereof will be omitted.
第1図、第2図は本発明の実施例におけるロタリー型圧
縮機の断面図である。1 and 2 are cross-sectional views of a rotary compressor in an embodiment of the present invention.
第1図において、21はシャフト上端部軸受でシャフト
を支持する部分以外にシャフト上端部軸受の上方と下方
を連通ずる穴はない。また22はシャフト連通穴であり
、シャフト上端部軸受21の上方と下方を連通している
。In FIG. 1, reference numeral 21 denotes a shaft upper end bearing, and there is no hole that communicates between the upper and lower parts of the shaft upper end bearing other than the part that supports the shaft. Further, 22 is a shaft communication hole, which communicates the upper and lower parts of the shaft upper end bearing 21.
本実施例によれば、上軸受4を潤滑し終えた油や、吐出
孔14から冷媒とともに吐出された油はミスト状になっ
て上方に流れるが、シャフト連通穴22のみを通って上
方に流れるため、シャフト連通穴22を通過する時にシ
ャフト8の遠心力で油が分離して外側に飛び密閉ケーシ
ング1の壁面を伝って下方に流れ、冷媒のみがシャフト
連通穴22を経て吐出管17から冷凍サイクルに吐出さ
れるため、油流出を低減でき、摺動部の焼きつき。According to this embodiment, the oil that has finished lubricating the upper bearing 4 and the oil discharged from the discharge hole 14 together with the refrigerant flow upward in the form of a mist, but flow upward only through the shaft communication hole 22. Therefore, when passing through the shaft communication hole 22, the oil is separated by the centrifugal force of the shaft 8, flies to the outside, flows downward along the wall surface of the sealed casing 1, and only the refrigerant passes through the shaft communication hole 22 and is frozen from the discharge pipe 17. Since it is discharged into the cycle, oil spillage can be reduced and seizures of sliding parts can be reduced.
能力の低下を防止することができる。It is possible to prevent a decline in performance.
発明の効果
以上のように本発明は、密閉ケーシング内に機械部と前
記機械部の上部にモータを備えるとともに、前記機械部
と前記モータをシャフトで連結し、前記シャフトの上端
部を支持するシャフト上端部軸受を備え、前記シャフト
にのみシャフト上端部軸受の上方と下方を連通ずるシャ
フト連通穴を設けることにより、上軸受を潤滑し終えた
油や、吐出孔から冷媒とともに吐出された油は、シャフ
ト連通穴を通過する時にシャフトの遠心力で油が冷媒と
分離して外側に飛び密閉ケーシングの壁面を伝って下方
に流れ、冷媒のみがシャフト連通穴を経て吐出管から冷
凍サイクルに吐出されるため、油流出を低減でき、摺動
部の焼きつき、能力の低下を防止することができる。Effects of the Invention As described above, the present invention includes a mechanical part in a sealed casing and a motor above the mechanical part, and a shaft that connects the mechanical part and the motor and supports the upper end of the shaft. By providing an upper end bearing and providing a shaft communication hole only in the shaft that communicates the upper and lower parts of the shaft upper end bearing, the oil that has finished lubricating the upper bearing and the oil discharged from the discharge hole together with the refrigerant can be When passing through the shaft communication hole, the oil separates from the refrigerant due to the centrifugal force of the shaft, flies outward, flows downward along the wall of the sealed casing, and only the refrigerant is discharged from the discharge pipe through the shaft communication hole into the refrigeration cycle. Therefore, oil spillage can be reduced, and seizure of sliding parts and reduction in performance can be prevented.
第1図は本発明の一実施例におけるロータリー型圧縮機
の断面図、第2図は第1図のI−Iにおける断面図、第
3図は従来の圧縮機の断面図である。
1・・・・・・密閉ケーシング、2・・・・・・モータ
、8・・川・シャフト、18・・・・・・機械部、21
・・・・・・シャフト上端部軸受、22・・・・・・シ
ャフト連通穴。
δ
シでフh
第
図FIG. 1 is a sectional view of a rotary compressor according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II in FIG. 1, and FIG. 3 is a sectional view of a conventional compressor. 1... Sealed casing, 2... Motor, 8... River/shaft, 18... Mechanical part, 21
...Shaft upper end bearing, 22...Shaft communication hole. δ
Claims (1)
タとを備えるとともに、前記機械部と前記モータとをシ
ャフトで連結し、前記シャフトの上端部を支持するシャ
フト上端部軸受を設け、前記シャフトに前記シャフト上
端部軸受の上方と下方を連通するシャフト連通穴を設け
るとともに、大部分の吐出ガスをこのシャフト連通孔を
通して、密閉ケーシング外に吐出する圧縮機。A mechanical part is provided in a sealed casing, and a motor is provided above the mechanical part. The mechanical part and the motor are connected by a shaft, and a shaft upper end bearing is provided to support the upper end part of the shaft. The compressor is provided with a shaft communication hole that communicates between the upper and lower parts of the shaft upper end bearing, and discharges most of the discharged gas to the outside of the sealed casing through the shaft communication hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23396188A JPH0281987A (en) | 1988-09-19 | 1988-09-19 | Compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23396188A JPH0281987A (en) | 1988-09-19 | 1988-09-19 | Compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0281987A true JPH0281987A (en) | 1990-03-22 |
Family
ID=16963342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23396188A Pending JPH0281987A (en) | 1988-09-19 | 1988-09-19 | Compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0281987A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103075345A (en) * | 2011-10-25 | 2013-05-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rolling rotor compressor |
CN105114315A (en) * | 2015-09-17 | 2015-12-02 | 广东美芝制冷设备有限公司 | Multi-cylinder rotating type compressor |
CN105114316A (en) * | 2015-09-17 | 2015-12-02 | 广东美芝制冷设备有限公司 | Multi-cylinder rotary compressor |
CN109185149A (en) * | 2018-11-07 | 2019-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air-conditioning system |
-
1988
- 1988-09-19 JP JP23396188A patent/JPH0281987A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103075345A (en) * | 2011-10-25 | 2013-05-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rolling rotor compressor |
CN105114315A (en) * | 2015-09-17 | 2015-12-02 | 广东美芝制冷设备有限公司 | Multi-cylinder rotating type compressor |
CN105114316A (en) * | 2015-09-17 | 2015-12-02 | 广东美芝制冷设备有限公司 | Multi-cylinder rotary compressor |
CN109185149A (en) * | 2018-11-07 | 2019-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air-conditioning system |
CN109185149B (en) * | 2018-11-07 | 2024-05-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air conditioning system |
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