KR20010002248U - Shaft Lubrication Structure of Hermetic Compressor_ - Google Patents
Shaft Lubrication Structure of Hermetic Compressor_ Download PDFInfo
- Publication number
- KR20010002248U KR20010002248U KR2019980025581U KR19980025581U KR20010002248U KR 20010002248 U KR20010002248 U KR 20010002248U KR 2019980025581 U KR2019980025581 U KR 2019980025581U KR 19980025581 U KR19980025581 U KR 19980025581U KR 20010002248 U KR20010002248 U KR 20010002248U
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- South Korea
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- shaft
- oil
- refrigeration oil
- oil passage
- hermetic compressor
- Prior art date
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Classifications
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- 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
- F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
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- 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
- F04C29/023—Lubricant distribution through a hollow driving shaft
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- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
본 고안은 밀폐형 압축기의 구동부에서 발생한 회전력을 기계부에 전달해 주는 전동수단과 케이스 저면의 냉동기유를 흡상하여 본체에 골고루 비산시켜 주는 펌핑작용을 겸하는 샤프트의 구조를 개선하여 냉동기유의 윤활 및 펌핑효과가 뛰어나도록 한 샤프트 윤활구조에 관한 것이다.The present invention improves the lubrication and pumping effect of the refrigeration oil by improving the structure of the shaft which serves as a pumping function that delivers the rotational force generated from the driving unit of the hermetic compressor to the mechanical part and the refrigeration oil at the bottom of the case to be evenly scattered on the main body. It relates to a shaft lubrication structure made excellent.
본 고안은 샤프트의 하단을 경사지게 형성하여 냉동기유와의 접촉면적을 넓혀 주므로서 냉동기유의 흡상량이 많도록 한 것이다.The present invention is to form a lower end of the shaft inclined so as to increase the contact area with the refrigeration oil to increase the amount of suction of the refrigeration oil.
상기와 같이 구성된 본 고안은 샤프트의 하단이 경사지게 형성되어 냉동기유와의 접촉면적이 넓으므로 많은 양의 냉동기유를 흡상하여 펌핑하게 되므로 윤활 및 냉각효과가 크게 된다.The present invention configured as described above is formed by the lower end of the shaft is inclined so that the contact area with the refrigeration oil is a large amount of refrigeration oil sucked and pumped, so the lubrication and cooling effect is greatly increased.
Description
본 고안은 냉장고와 같은 냉동기에 설치되어 밀폐된 케이스 내에서 흡입된 냉매가스를 압축 및 토출시켜 주는 밀폐형 압축기에 관한 것이다.The present invention relates to a hermetic compressor installed in a refrigerator such as a refrigerator to compress and discharge refrigerant gas sucked in a sealed case.
더욱 상세하게는, 구동부의 회전력을 기계부에 전달해 주는 전동수단과 케이스 저면의 냉동기유를 흡상하여 본체에 골고루 비산시켜 주는 펌핑작용을 겸하는 샤프트의 구조를 개선하여 냉동기유의 윤활 및 펌핑효과가 뛰어나도록 한 밀폐형 압축기의 샤프트 윤활구조에 관한 것이다.More specifically, to improve the lubrication and pumping effect of the refrigeration oil by improving the structure of the shaft having a pumping action to suck the transmission means for transmitting the rotational force of the drive unit and the refrigeration oil at the bottom of the case evenly scattered to the body A shaft lubrication structure of a hermetic compressor.
주지된 바와 같이 압축기는 기계적 에너지를 압축성 유체의 압축에너지로 변환시켜 주는 기기로서, 증발기로 부터 흡입된 저압의 냉매가스를 응축압력 까지 압축하여 주는 기능을 수행하게 되며, 이러한 압축기의 종류에는 왕복압축기, 회전압축기, 터보압축기 등이 있다.As is well known, a compressor is a device that converts mechanical energy into compressive energy of a compressible fluid, and performs a function of compressing a low pressure refrigerant gas sucked from an evaporator to a condensation pressure. , Rotary compressors, turbo compressors, and the like.
왕복압축기는 피스톤의 왕복운동을 통해서 냉매가스를 압축시켜 주고, 회전압축기는 실린더 내의 회전자를 회전시켜 냉매가스를 압축하며, 터보압축기는 임펠러의 원심력을 이용하여 속도에너지를 압력에너지로 변환시켜 냉매가스를 압축시켜 준다.The reciprocating compressor compresses the refrigerant gas through the reciprocating motion of the piston, and the rotary compressor compresses the refrigerant gas by rotating the rotor in the cylinder.The turbo compressor converts the velocity energy into pressure energy by using the centrifugal force of the impeller. Compress the gas.
이러한 압축기는 증발기로 부터 유입된 저압의 냉매가스를 압축하여 응축압력 까지 높여주는 역할을 한다.Such a compressor serves to increase the condensation pressure by compressing the low pressure refrigerant gas introduced from the evaporator.
그리고, 압축기로 부터 토출된 냉매가스는 응축기, 팽창밸브, 증발기 등을 순환하면서 냉매가스의 증발잠열을 이용하여 증발기 주위의 열을 빼앗는 냉각작용을 하게 된다.In addition, the refrigerant gas discharged from the compressor circulates through the condenser, the expansion valve, and the evaporator, thereby performing a cooling operation to take heat around the evaporator using the latent heat of evaporation of the refrigerant gas.
즉, 압축기가 냉매가스를 압축하여 포화압력 까지 압력과 온도를 상승시켜 주면, 응축기가 물이나 공기를 이용하여 고온ㆍ고압의 냉매가스가 갖고 있는 열을 흡수하므로서 냉매가스를 응축 및 액화시키고, 응축 및 액화된 냉매가스는 팽창밸브의 교축작용에 의해 온도와 압력이 급격히 낮아지며, 이 냉매가스가 증발기에서 증발되면서 피냉각물체로 부터 열을 흡수하여 냉각시키게 되는 것이다.In other words, when the compressor compresses the refrigerant gas and raises the pressure and temperature up to the saturation pressure, the condenser absorbs heat contained in the refrigerant gas of high temperature and high pressure by using water or air to condense and liquefy the refrigerant gas. And the liquefied refrigerant gas is rapidly lowered in temperature and pressure by the throttling action of the expansion valve, and the refrigerant gas is cooled by absorbing heat from the object to be cooled as it is evaporated in the evaporator.
도 1은 주로 사용되고 있는 밀폐형 압축기의 단면도를 나타낸 것으로서, 밀폐형 압축기는 통상 상하부케이스(10,20)의 밀폐된 공간내에 압축기 본체가 설치되어 있다.1 is a cross-sectional view of a hermetic compressor mainly used, in which a compressor main body is installed in a sealed space of upper and lower cases 10 and 20.
압축기 본체는 크게 나누어서 골격 역할을 하는 프레임(30)과, 프레임의 하부에 설치되어 샤프트(60)를 회전시키는 구동부(또는 모터부,40) 및, 상기 샤프트의 회전운동을 직선운동으로 변환하여 냉매가스를 흡입 및 압축하는 기계부(50)로 구성된다.The compressor main body is divided into a frame 30 serving as a skeletal structure, a drive unit (or motor unit 40) installed at a lower portion of the frame to rotate the shaft 60, and a rotational motion of the shaft converted into a linear motion refrigerant. And a mechanical part 50 for sucking and compressing gas.
프레임(30)은 구동부와 기계부 전체를 지지하게 되며, 그 상하단이 각각 상하부케이스(10,20)와 일정간격이 유지되도록 완충 및 소음방지수단인 사이드 스토퍼(70)와 코일스프링(80)에 의해 지지되어 있다.The frame 30 supports the entire driving part and the mechanical part, and the upper and lower ends of the frame 30 and the coil spring 80 are cushioning and noise preventing means so as to maintain a predetermined interval with the upper and lower cases 10 and 20, respectively. Supported by
구동부(40)는 스테이터볼트(160)를 통하여 프레임(30)에 지지되므로서 고정자 역할을 하는 스테이터(90)와, 회전자 역할을 하는 로터(100) 및, 로터의 중심부에 설치되어 그와 함께 회전하는 샤프트(60)로 구성되어 있다.The drive unit 40 is supported by the frame 30 through the stator bolt 160 and is provided in the center of the rotor, and the stator 90 serving as a stator, the rotor 100 serving as a rotor, and the It consists of the rotating shaft 60.
기계부(50)는 냉매가스의 실질적으로 흡입하여 압축하는 실린더(110)와 피스톤(120) 및 피스톤로드(130), 냉매가스의 흡입 및 토출수단인 흡입 및 토출밸브를 구비하는 밸브 플레이트(140)등으로 구성되며, 피스톤로드(130)가 샤프트(60)의 편심부(61)에 연결되어 상기 샤프트의 회전운동을 직선운동으로 변환시키면서 실린더(110)내의 피스톤(120)을 통하여 냉매가스를 흡입 및 압축하게 된다.The mechanical part 50 includes a valve plate 140 having a cylinder 110, a piston 120, a piston rod 130, and suction and discharge valves that are suction and discharge means of the refrigerant gas. Piston rod 130 is connected to the eccentric portion 61 of the shaft 60 to convert the rotational movement of the shaft into a linear movement while the refrigerant gas through the piston 120 in the cylinder 110 Suction and compression.
이중, 샤프트(60)는 구동부(40)의 회전력을 기계부(50)에 전달해 주는 기능을 하는 동시에 회전시 발생하는 자체의 원심력을 이용하여 저면의 냉동기유(200)를 흡상시킨 다음 이를 본체에 비산시켜 압축기의 윤활 및 냉각작용을 하게 된다.Of these, the shaft 60 functions to transmit the rotational force of the driving unit 40 to the mechanical unit 50 and sucks the refrigeration oil 200 at the bottom by using its own centrifugal force generated during rotation, and then, to the main body. By scattering, the compressor is lubricated and cooled.
즉, 냉동기유(200)를 자체의 원심력으로 흡상시켜 본체에 골고루 펌핑(비산)하므로서 각 부분의 가열을 방지하고, 기계부의 윤활작용을 도와주게 된다.That is, the refrigeration oil 200 is sucked up by its own centrifugal force, thereby evenly pumping (spreading) the body, thereby preventing heating of each part and helping lubrication of the mechanical part.
이를 위해 종래에는 도 2에서 보는 바와 같이 냉동기유(200)에 잠기는 샤프트(60)의 하단으로 중간부분 까지 직경이 큰 오일통로(62)를 경사지게 형성하고, 상기 오일통로의 상단으로 부터 편심부(61)의 하단 까지는 상기 오일통로와 연통되는 오일홈(63)을 주연에 형성하며, 상기 오일홈의 상단으로 부터 편심부의 상단 까지는 소직경의 오일통로(64)를 수직하게 형성하였던 것이다.To this end, as shown in FIG. 2, an oil passage 62 having a large diameter is inclined to the middle portion of the shaft 60 submerged in the refrigerator oil 200, and an eccentric portion is formed from the top of the oil passage. The lower end of 61) forms an oil groove 63 communicating with the oil passage at the periphery, and the oil passage 64 having a small diameter is formed vertically from the top of the oil groove to the top of the eccentric portion.
즉, 샤프트(60)의 원심력에 의해 저면의 냉동기유(200)가 오일통로(62)와 오일홈(63) 및 오일통로(64)를 통하여 흡상된 다음 기계부와 본체의 프레임 및 케이스의 내벽면에 골고루 펌핑하여 윤활 및 내각작용이 이루어지도록 하였던 것이다.That is, by the centrifugal force of the shaft 60, the refrigeration oil 200 at the bottom is sucked up through the oil passage 62, the oil groove 63 and the oil passage 64, and then the inside of the frame and the case of the machine part and the main body. The pump was evenly pumped to the wall to achieve lubrication and cabinet action.
이때, 대직경의 오일통로(62)를 경사지게 형성하는 이유는 보다 큰 원심력을 얻기 위함이며, 이 외에도 오일통로(62)의 하단에는 피스톤 핀(150)을 압입하여 더 많은 양의 냉동기유(200)가 흡상되도록 하였던 것이다.At this time, the reason why the large diameter oil passage 62 is formed to be inclined is to obtain a larger centrifugal force, and in addition to the lower end of the oil passage 62, the piston pin 150 is press-fitted to a larger amount of the refrigerant oil 200 ) Was sucked up.
그런데, 이와 같은 샤프트는 압축기의 사용조건에 따라서 더 많은 양의 냉동기유가 필요할 경우, 구조적으로 냉동기유의 흡상량을 높이기에는 여의치 못한 단점이 있었다.However, such a shaft has a disadvantage in that it is structurally difficult to increase the amount of freezing oil when the amount of the refrigeration oil is required according to the conditions of use of the compressor.
즉, 샤프트의 직경이 정해져 있으므로 오일통로(62)의 경사각을 증가시키기에는 한계가 있기 때문이다.That is, since the diameter of the shaft is determined, there is a limit to increase the inclination angle of the oil passage 62.
본 고안은 이러한 문제점을 해결하기 위하여 안출한 것으로 그 기술적인 과제는 샤프트의 구조를 개선하여 냉동기유의 흡상량을 증가시킬수 있도록 함에 있다.The present invention has been made to solve such a problem, the technical problem is to improve the structure of the shaft to increase the amount of suction oil of the refrigeration oil.
도 1은 일반적인 밀폐형 압축기의 단면도1 is a cross-sectional view of a typical hermetic compressor
도 2는 종래 샤프트의 단면도2 is a cross-sectional view of a conventional shaft
도 3은 본 고안에 따른 샤프트의 단면도3 is a cross-sectional view of the shaft according to the present invention
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
10 : 상부케이스 20 : 하부케이스10: upper case 20: lower case
30 : 프레임 40 : 구동부30 frame 40 drive unit
50 : 기계부 60 : 샤프트50: mechanical part 60: shaft
61 : 편심부 62 : 오일통로61: eccentric 62: oil passage
63 : 오일홈 64 : 오일통로63: oil groove 64: oil passage
90 : 스테이터 100 : 로터90: stator 100: rotor
170 : 스크류 200 : 냉동기유170: screw 200: refrigerator oil
상기의 과제를 달성하기 위하여 본 고안은 샤프트의 하단을 경사지게 형성하여 냉동기유와의 접촉면적을 넓혀 주므로서 냉동기유의 흡상량이 많도록 한 것이다.In order to achieve the above object, the present invention is to form a lower end of the shaft inclined so as to increase the contact area with the refrigeration oil to increase the amount of suction of the refrigeration oil.
상기와 같이 구성된 본 고안은 샤프트의 하단이 경사지게 형성되어 냉동기유와의 접촉면적이 넓으므로 많은 양의 냉동기유를 흡상하여 펌핑하게 되므로 윤활 및 냉각효과가 크게 된다.The present invention configured as described above is formed by the lower end of the shaft is inclined so that the contact area with the refrigeration oil is a large amount of refrigeration oil sucked and pumped, so the lubrication and cooling effect is greatly increased.
이하에서 본 고안을 첨부된 도면에 의거 보다 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 고안에 따른 샤프트의 단면도를 나타낸 것이다.Figure 3 shows a cross-sectional view of the shaft according to the present invention.
도시한 바와 같이 본 고안은 밀폐형 압축기의 하부케이스(20)에 고여 있는 냉동기유(200)를 흡상 및 비산시키기 위하여 상기 냉동기유(200)에 잠기는 샤프트(60)의 하단으로 중간부분 까지 직경이 큰 오일통로(62)가 경사지게 형성되고, 상기 오일통로의 상단으로 부터 편심부(61)의 하단 까지는 상기 오일통로와 연통되는 오일홈(63)이 주연에 형성되며, 상기 오일홈의 상단으로 부터 편심부의 상단 까지는 소직경의 오일통로(64)가 수직하게 형성된 샤프트(60)에 있어서,As shown, the present invention has a large diameter up to the middle of the lower end of the shaft 60 immersed in the refrigerator oil 200 to suck and scatter the refrigerator oil 200 accumulated in the lower case 20 of the hermetic compressor. An oil passage 62 is formed to be inclined, and an oil groove 63 communicating with the oil passage is formed at the periphery of the oil passage from the top of the oil passage to the bottom of the eccentric portion 61, and is eccentric from the top of the oil groove. In the shaft 60, the oil passage 64 of the small diameter is formed vertically to the upper end of the portion,
상기 샤프트(60)의 하단을 경사지게 형성하여 오일통로(62)와 냉동기유(200)의 접촉면적이 넓도록 한 것이다.The lower end of the shaft 60 is formed to be inclined so that the contact area between the oil passage 62 and the refrigerator oil 200 is wide.
상기와 같이 구성된 본 고안은 하부케이스(20)의 냉동기유(200)가 최초로 흡입되는 오일통로(62)의 하단이 경사지게 형성되어 있어 상기 냉동기유와 오일통로의 접촉면적이 크게 된다.According to the present invention configured as described above, the lower end of the oil passage 62 in which the refrigerator oil 200 of the lower case 20 is first sucked is formed to be inclined so that the contact area between the refrigerator oil and the oil passage is large.
따라서, 샤프트의 원심력에 의한 냉동기유의 흡상량이 많게 되어 많은 양의 냉동기유를 펌핑하므로 그만큼 윤활 및 내각효과가 크게 된다.Therefore, the amount of wicking of the refrigeration oil due to the centrifugal force of the shaft is increased, so that a large amount of the refrigeration oil is pumped, so that the lubrication and the cabinet effect are increased.
이상에서 설명한 바와 같이 본 고안은 샤프트의 하단을 경사지게 형성하여 오일통로와 냉동기유의 접촉면적을 넓혀 주므로서 냉동기유의 흡상량이 많게 되어 샤프트가 많은 양의 냉동기유를 흡상하여 펌핑하게 되므로 윤활 및 냉각효과가 뛰어난 효과가 있다.As described above, the present invention inclines the lower end of the shaft to widen the contact area between the oil passage and the refrigeration oil, thereby increasing the amount of wicking of the refrigeration oil. Excellent effect.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980025581U KR20010002248U (en) | 1998-12-19 | 1998-12-19 | Shaft Lubrication Structure of Hermetic Compressor_ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980025581U KR20010002248U (en) | 1998-12-19 | 1998-12-19 | Shaft Lubrication Structure of Hermetic Compressor_ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20010002248U true KR20010002248U (en) | 2001-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019980025581U KR20010002248U (en) | 1998-12-19 | 1998-12-19 | Shaft Lubrication Structure of Hermetic Compressor_ |
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| Country | Link |
|---|---|
| KR (1) | KR20010002248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100927437B1 (en) * | 2008-02-29 | 2009-11-19 | 학교법인 두원학원 | Inverter Scroll Compressor |
-
1998
- 1998-12-19 KR KR2019980025581U patent/KR20010002248U/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100927437B1 (en) * | 2008-02-29 | 2009-11-19 | 학교법인 두원학원 | Inverter Scroll Compressor |
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