JPS6219592B2 - - Google Patents
Info
- Publication number
- JPS6219592B2 JPS6219592B2 JP56078811A JP7881181A JPS6219592B2 JP S6219592 B2 JPS6219592 B2 JP S6219592B2 JP 56078811 A JP56078811 A JP 56078811A JP 7881181 A JP7881181 A JP 7881181A JP S6219592 B2 JPS6219592 B2 JP S6219592B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- hole
- oil sump
- main bearing
- crank chamber
- 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
- 239000003507 refrigerant Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 31
- 239000010687 lubricating oil Substances 0.000 description 14
- 230000005484 gravity Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Description
【発明の詳細な説明】
この発明は、冷媒圧縮機の軸受への給油機構の
改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a mechanism for supplying oil to a bearing of a refrigerant compressor.
第1図は従来の冷媒圧縮機を示すもので、1は
水平に設置されたクランク軸、2はクランク軸1
の一端を収容し、油かき機構3によりはね上げら
れた潤滑油4を貯溜する油溜め、5はクランク軸
1の中心に穿設され、一端が油溜め2内に開口す
る油孔、6は連接杆、7は連接杆6の軸受部、8
は油溜め側主軸受、9は反油溜め側主軸受、10
は給油孔、11は電動要素、12は電動要素室、
13はクランク室、14は電動要素室12とクラ
ンク室13を区画する隔壁である。 Figure 1 shows a conventional refrigerant compressor, where 1 is a horizontally installed crankshaft, 2 is a crankshaft 1
5 is an oil hole drilled in the center of the crankshaft 1 and has one end opening into the oil sump 2; 6 is a connecting oil sump; Rod, 7 is the bearing part of the connecting rod 6, 8
is the main bearing on the oil sump side, 9 is the main bearing on the opposite oil sump side, 10
is the oil supply hole, 11 is the electric element, 12 is the electric element chamber,
13 is a crank chamber, and 14 is a partition wall that partitions the electric element chamber 12 and the crank chamber 13.
以上のような構成において、次にその作用につ
いて説明する。油かき機構3によりはね上げられ
た潤滑油4は、油溜め2内に貯溜され、油孔5内
に流入し、クランク軸1の回転に伴つて発生する
遠心力により、給油孔10を介して各軸受7,
8,9に供給される。 Next, the operation of the above configuration will be explained. The lubricating oil 4 splashed up by the oil scraper mechanism 3 is stored in the oil reservoir 2, flows into the oil hole 5, and is pumped up through the oil supply hole 10 by the centrifugal force generated as the crankshaft 1 rotates. bearing 7,
8 and 9.
しかしながら、油孔5内に流入する潤滑油に
は、油かき機構3による撹拌のために発生する気
泡が含まれ、さらに潤滑油中に溶解している冷媒
が軸受7,8,9の発熱により気化するため、潤
滑油4の流通が阻害され、軸受7,8,9に十分
な潤滑油を供給できず、焼付に至る場合があつ
た。 However, the lubricating oil flowing into the oil hole 5 contains bubbles generated due to stirring by the oil scraper mechanism 3, and furthermore, the refrigerant dissolved in the lubricating oil is caused by the heat generated by the bearings 7, 8, and 9. Because of the vaporization, the flow of the lubricating oil 4 was obstructed, and sufficient lubricating oil could not be supplied to the bearings 7, 8, and 9, which could lead to seizure.
この発明は上記従来のものの欠点を除去しよう
とするものであり、以下この発明の一実施例を図
面について説明する。即ち第2図はその要部を示
し、第3図は第2図の−線の断面図で、15
は反油溜め側主軸受9の中間部に設けられたリン
グ状の空室、16は油孔5の中心部に突出して上
記空室15と連通する連通管、17は連通管16
内部に設けられた細孔、18は空室15とクラン
ク室13とを連通する連通孔で、この連通孔18
は油孔5よりも高い位置に設けられている。なお
その他は従来と同様であるので説明を省略する。 The present invention aims to eliminate the drawbacks of the above-mentioned conventional devices, and one embodiment of the present invention will be described below with reference to the drawings. That is, FIG. 2 shows the main part, and FIG. 3 is a sectional view taken along the - line in FIG.
16 is a ring-shaped cavity provided in the middle of the main bearing 9 on the side opposite to the oil sump, and 16 is a communication pipe that projects into the center of the oil hole 5 and communicates with the cavity 15. 17 is a communication pipe 16
The pore 18 provided inside is a communication hole that communicates the empty chamber 15 and the crank chamber 13, and this communication hole 18
is provided at a higher position than the oil hole 5. Note that the other parts are the same as the conventional one, so explanations will be omitted.
以上のような構成において、次にその作用につ
いて説明する。クランク軸1の回転に伴つて発生
する遠心力により、油孔5内にて、比較的比重の
大きな潤滑油は油孔5の内壁側へ、比較的比重の
小さい気泡は中心側へそれぞれ分離される。従つ
て油孔5内部で気泡が発生しても給油孔10の油
孔5側開口部は常に潤滑油で満たされるので、潤
滑油の供給不足が生じる恐れがなく、一方油孔5
の中心部に溜まつた気泡は連通管16に設けた細
孔17を介して空室15内へ導かれ、さらに連通
孔18を介してクランク室13内へ排出されるの
で、潤滑油は油孔5内を円滑に流動する。 In the above configuration, the operation thereof will be explained next. Due to the centrifugal force generated as the crankshaft 1 rotates, lubricating oil with a relatively high specific gravity is separated toward the inner wall of the oil hole 5, and air bubbles with a relatively low specific gravity are separated toward the center of the oil hole 5. Ru. Therefore, even if air bubbles occur inside the oil hole 5, the opening on the oil hole 5 side of the oil supply hole 10 is always filled with lubricating oil, so there is no risk of insufficient supply of lubricating oil;
The air bubbles accumulated in the center of the pipe are guided into the cavity 15 through the small hole 17 provided in the communication pipe 16, and are further discharged into the crank chamber 13 through the communication hole 18, so that the lubricating oil becomes oily. It flows smoothly inside the hole 5.
つまりこの発明は気泡の排出を行う空室15を
連通孔18によりクランク室13に連通し、両室
15,13を均圧させているので、運転条件が変
動しても油の供給に支障を来すことがない。 In other words, in this invention, the empty chamber 15 for discharging air bubbles is communicated with the crank chamber 13 through the communication hole 18, and the pressure in both chambers 15 and 13 is equalized, so that even if the operating conditions fluctuate, there is no problem in the oil supply. It never comes.
又、空室15内へ気泡とともに排出された潤滑
油は、空室15底部に溜まり、主軸受9の潤滑に
供されるので、潤滑油の無駄な消費がなく、さら
に連通孔18は油孔5よりも高い位置に設けてあ
るので、圧縮機が停止しても、油溜め2、油孔5
および空室15内の潤滑油がクランク室13内へ
落下しないので、再起動時には各軸受への潤滑油
供給が速やかに行える等の効果を奏する。 Furthermore, the lubricating oil discharged into the cavity 15 along with bubbles accumulates at the bottom of the cavity 15 and is used to lubricate the main bearing 9, so there is no wasteful consumption of the lubricating oil, and the communication hole 18 is an oil hole. 5, so even if the compressor stops, the oil sump 2 and oil hole 5
Also, since the lubricating oil in the empty chamber 15 does not fall into the crank chamber 13, the lubricating oil can be quickly supplied to each bearing at the time of restart.
第1図は従来の冷媒圧縮機を示す断面図、第2
図はこの発明の一実施例の冷媒圧縮機の要部を示
す断面図、第3図は第2図の−線の断面図で
ある。
図中、1はクランク軸、2は油溜め、3は油か
き機構、4は潤滑油、5は油孔、7は連接杆軸受
部、8は油溜め側主軸受、9は反油溜め側主軸
受、10は給油孔、13はクランク室、15は空
室、16は連通管、17は細孔、18は連通孔で
ある。尚、図中同一符号は同一部分又は相当部分
を示す。
Figure 1 is a sectional view showing a conventional refrigerant compressor, Figure 2 is a sectional view showing a conventional refrigerant compressor.
The figure is a cross-sectional view showing essential parts of a refrigerant compressor according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along the - line in FIG. 2. In the figure, 1 is the crankshaft, 2 is the oil sump, 3 is the oil scrubbing mechanism, 4 is the lubricating oil, 5 is the oil hole, 7 is the connecting rod bearing, 8 is the main bearing on the oil sump side, and 9 is the side opposite to the oil sump. The main bearing, 10 is an oil supply hole, 13 is a crank chamber, 15 is an empty chamber, 16 is a communicating pipe, 17 is a pore, and 18 is a communicating hole. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
備えたものであつて、上記クランク室の側壁に設
けた油溜め側主軸受と上記隔壁に設けた反油溜め
側主軸受によりクランク軸を支承し、このクラン
ク軸の軸心に設けた油孔はその内端が上記反油溜
め主軸受の位置に達し、外端を上記油溜め側主軸
の外側に形成した油溜めに開口せしめ、かつ上記
両主軸受および連接杆軸受部に対する給油孔を設
け、また上記反油溜め側主軸受の中間部に空室を
設け、この空室と上記油孔とを細孔を有する連通
管で連通し、更に上記油孔よりも高い位置におい
て反油溜め主軸に設けられた連通孔を介して空室
とクランク室とを連通したことを特徴とする冷媒
圧縮機。1 Equipped with a crank chamber and an electric element chamber separated by a partition wall, the crankshaft is supported by an oil sump side main bearing provided on the side wall of the crank chamber and a main bearing on the opposite oil sump side provided on the partition wall. The oil hole formed in the axis of the crankshaft has an inner end reaching the position of the main bearing opposite to the oil sump, and an outer end opening into the oil sump formed on the outside of the main shaft on the oil sump side. providing oil supply holes for both main bearings and the connecting rod bearing portion, and providing an empty space in the middle of the main bearing on the side opposite to the oil sump, and communicating this empty space with the oil hole through a communication pipe having a small hole; Furthermore, the refrigerant compressor is characterized in that the empty chamber and the crank chamber are communicated through a communication hole provided in the anti-oil sump main shaft at a position higher than the oil hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7881181A JPS57193782A (en) | 1981-05-22 | 1981-05-22 | Refrigerant compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7881181A JPS57193782A (en) | 1981-05-22 | 1981-05-22 | Refrigerant compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57193782A JPS57193782A (en) | 1982-11-29 |
JPS6219592B2 true JPS6219592B2 (en) | 1987-04-30 |
Family
ID=13672222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7881181A Granted JPS57193782A (en) | 1981-05-22 | 1981-05-22 | Refrigerant compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57193782A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090092504A1 (en) | 2005-10-26 | 2009-04-09 | Hironari Akashi | Hermetic compressor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248001U (en) * | 1975-09-30 | 1977-04-05 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6038074Y2 (en) * | 1979-05-07 | 1985-11-13 | 株式会社東芝 | Compressor oil supply device |
-
1981
- 1981-05-22 JP JP7881181A patent/JPS57193782A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248001U (en) * | 1975-09-30 | 1977-04-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS57193782A (en) | 1982-11-29 |
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