CN1601097A - Lower bearing of rotary compressor - Google Patents
Lower bearing of rotary compressor Download PDFInfo
- Publication number
- CN1601097A CN1601097A CN 03144391 CN03144391A CN1601097A CN 1601097 A CN1601097 A CN 1601097A CN 03144391 CN03144391 CN 03144391 CN 03144391 A CN03144391 A CN 03144391A CN 1601097 A CN1601097 A CN 1601097A
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- CN
- China
- Prior art keywords
- rotary compressor
- lower bearing
- lubricant
- boss
- groove
- 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.)
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a bottom bearing of rotary compressor, composed of annular underframe with many fixed screw holes and a boss projecting in the center of the underframe, where the end surface of the boss is made with a radial through groove. The cross section of the through groove can be semicircular, rectangular or triangular. As the bottom bearing is installed at the bottom end of a compression mechanism, the lubricant at the bottom of sealing case can be easy to flow through the through groove to the bottom end of a crankshaft, thus able to not only assure lubricant path smooth but also reduce power losses of the lubricant. In addition, because the lubricant is easy to flow, it can shorten the distance between the bottom bearing and a bottom cover, so as to make the structure of the compressor compact.
Description
Technical field
The present invention relates to a kind of rotary compressor, particularly relate to a kind of lower bearing of rotary compressor.
Background technique
The rotary compressor that is widely used in the household electric appliance such as various refrigerators and air-conditioning is a kind of device of compressible fluid.Its usually by seal casinghousing with inner space, be installed in the top of seal casinghousing and the electromechanical part of driving force can be provided and be positioned at the bottom of seal casinghousing and can form in the compression mechanical portion of the driving lower compression refrigerant of electromechanical part.Fig. 1 is the rotary compressor longitudinal construction sectional view of prior art.As shown in Figure 1, the seal casinghousing of this rotary compressor is made of cylindrical housing 1 and loam cake 2 and lower cover 3.The compression mechanical portion that is positioned at the seal casinghousing bottom then mainly comprises cylinder 4 and is installed in the upper bearing 5 and the lower bearing 6 of cylinder 4 upper and lower end faces respectively.Usually the lubricant oil that can guarantee that each parts runs well in the compressor is equipped with in the bottom of seal casinghousing.The bottom of compression mechanical portion just is immersed in this lubricant oil, and the rotation of its bent axle 7 by running through cylinder 4 and upper and lower part bearing 5,6 is inhaled up electromechanical part with lubricant oil and realizes the lubricated of system.Focus on the lower end of bent axle 7 for ease of lubricant oil, leave certain clearance between lower bearing 6 and the lower cover 3 usually, so not only can make the whole height increasing of compressor, and can make its cost rising.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of simple in structure, lower bearing of being easy to process and can make the rotary compressor of compressor compact overall structure.
In order to achieve the above object, the lower bearing of rotary compressor provided by the invention by the ring chassis with a plurality of fixing threaded holes and from the umbo on chassis and the boss that forms constitute, it radially offers a through slot end face upper edge of boss.
Described through slot cross section can be semicircle, rectangle or triangle.
The lower bearing of rotary compressor provided by the invention is that it radially offers a through slot in the lower bearing raised head face upper edge of prior art, like this when attaching it to the compression mechanical portion lower end, the lubricant oil of seal casinghousing bottom just can flow to the lower end of bent axle at an easy rate by this through slot, the unobstructed of lubricating oil path not only can be guaranteed, and lubricated power loss can be reduced.In addition, owing to lubricant oil is easy to flow, thus can shorten the distance between lower bearing and the lower cover, so that the compact structure of compressor, and can reduce cost.
Description of drawings
Be elaborated below in conjunction with the lower bearing of the drawings and specific embodiments to rotary compressor provided by the invention.
Fig. 1 is the rotary compressor longitudinal construction sectional view of prior art.
Fig. 2 is the lower bearing structural perspective of rotary compressor provided by the invention.
Fig. 3 is the rotary compressor longitudinal construction sectional view that lower bearing provided by the invention is housed.
Embodiment
As Fig. 2, shown in Figure 3,12 umbo and the boss 13 that forms constitute the lower bearing 10 of rotary compressor provided by the invention by the ring chassis 12 with a plurality of fixing threaded holes 11 with from the chassis, and it radially offers a through slot 14 the end face upper edge of boss 13.When bent axle 7 rotations, the lubricant oil that accumulates in the seal casinghousing bottom just can be by being installed in the lower end that lower bearing 10 on cylinder 4 lower end surfaces and the space between the lower cover 3 and through slot 14 flow to bent axle 7, is drawn onto the electromechanical part on seal casinghousing top by the oil circuit on the bent axle 7 then and the mechanical part of compressor inside is lubricated.Described through slot 14 cross sections can be semicircle, rectangle or triangle, mainly should be selected from being convenient to process and reduce the resistance aspect that lubricant oil flows.In addition, the sectional dimension of through slot 14 needs to decide according to the requirement of strength of lower bearing 10.
Claims (2)
1, a kind of lower bearing of rotary compressor, by the ring chassis (12) with a plurality of fixing threaded holes (11) and from the chassis (12) umbo and the boss (13) that forms constitutes, it is characterized in that: it radially offers a through slot (14) the end face upper edge of described boss (13).
2, the lower bearing of rotary compressor according to claim 1 is characterized in that: described through slot (14) cross section can be semicircle, rectangle or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144391 CN1601097A (en) | 2003-09-27 | 2003-09-27 | Lower bearing of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144391 CN1601097A (en) | 2003-09-27 | 2003-09-27 | Lower bearing of rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1601097A true CN1601097A (en) | 2005-03-30 |
Family
ID=34659548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03144391 Pending CN1601097A (en) | 2003-09-27 | 2003-09-27 | Lower bearing of rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1601097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881273A (en) * | 2009-05-08 | 2010-11-10 | 乐金电子(天津)电器有限公司 | Rotating compressor |
-
2003
- 2003-09-27 CN CN 03144391 patent/CN1601097A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881273A (en) * | 2009-05-08 | 2010-11-10 | 乐金电子(天津)电器有限公司 | Rotating compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |