CN101205908B - Bearing arrangement of scroll compressor - Google Patents
Bearing arrangement of scroll compressor Download PDFInfo
- Publication number
- CN101205908B CN101205908B CN2006101304495A CN200610130449A CN101205908B CN 101205908 B CN101205908 B CN 101205908B CN 2006101304495 A CN2006101304495 A CN 2006101304495A CN 200610130449 A CN200610130449 A CN 200610130449A CN 101205908 B CN101205908 B CN 101205908B
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- Prior art keywords
- framework
- movable orbiting
- orbiting scroll
- thrust bearing
- bearing part
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Abstract
The invention discloses a moving turbine disc support device of a scroll compressor, which comprises of: a framework which is fixedly arranged inside a shell; a moving turbine disc which can be rotatablely arranged on the framework to conduct rotary motion while meshing with a fixing turbine disc to generate a plurality of continuously moving compression chambers; a thrust bearing component which is arranged between the framework and the moving turbine disc to support axial force. The invention can avoid the friction loss or abrasion between the main framework and the moving turbine disc, thereby improving the performance and the reliability of the compressor.
Description
Technical field
The present invention is the invention of bearings with rolling contact in the relevant scroll compressor.In more detail, the present invention relates to the bearing means of the scroll compressor that the axial force to movable orbiting scroll supports.
Background technique
Usually, scroll compressor is the high efficiency low noise compressor that is widely used in field of air conditioning.Scroll compressor carries out relative rotary motion by two turbines, and volume dwindled gradually when a pair of compression chamber moved continuously, allowed refrigerant along with compression chamber moves, compressed continuously.
Fig. 1 is the scroll compressor generalized section of prior art.Fig. 2 is the compression mechanical part fragmentary cross-sectional view of prior art scroll compressor.
As shown in the figure, existing scroll compressor comprises the shell 1 that is being communicated with gas suction pipe SP and gas outlet pipe DP; Be separately fixed at shell 1 the inner peripheral surface main frame 2 and the sub-frame (figure slightly) of both sides up and down; Be installed in the drive motor 3 that produces rotating force between main frame 2 and the sub-frame; Be arranged on regularly main frame 2 above, be formed with the static vortex disk 4 that spirality is decided scrollwork 4b in hardboard portion 4a bottom surface; With static vortex disk 4 decide scrollwork 4b engagement, rotatably be placed on main frame 2 above, with the movable orbiting scroll 5 that scrollwork 4b forms the moving scrollwork 5b of several spiralitys that become two compression chamber P of deciding of static vortex disk 4; Be arranged between movable orbiting scroll 5 and the main frame 2 back-up ring 6 that makes it to rotate when preventing movable orbiting scroll 5 rotations; Be combined in the back side of static vortex disk 4, the high low pressure separating plate 7 of shell 1 internal separation for regional S1 of suction and discharging area S2; Be combined in the hardboard portion back side of static vortex disk 4, prevent to be discharged to the check valve 8 that the pressurized gas of discharging area S2 flows backwards.
As shown in Figure 2, the top of main frame 2 forms flatly, hardboard portion 5a bottom surface with movable orbiting scroll 5 forms bearing surface BS, forms smoothly with in opposite directions the hardboard portion 5a bottom surface of movable orbiting scroll 5 above the main frame 2, so that form bearing surface BS above main frame 2.
In the accompanying drawing, unaccounted symbol 3A is a stator, and 3B is a rotor, and 3C is a live axle.
Have the as above existing scroll compressor of structure, its working principle is as follows.
That is, when drive motor 3 was connected power supply, live axle 3C was rotated with rotor 3B, and back-up ring 6 allows movable orbiting scroll 5 by eccentric distance, is rotated motion on main frame 2.Meanwhile, move scrollwork 5b and decide a pair of compression chamber P that generation is moved continuously between the scrollwork 4b, along with moving scrollwork 5 is rotated motion constantly, refrigerant is compressed the back discharge along the track of movable orbiting scroll 5 when move at the center.
Movable orbiting scroll 5 forms bearing surface BS with main frame 2, and machine oil is fed to bearing surface BS and is lubricated, and movable orbiting scroll 5 is rotated motion.
But there are the following problems for existing scroll compressor.Because the hardboard portion mutual face in 5a bottom surface of top and the movable orbiting scroll 5 of main frame 2 contact, formation bearing surface BS, so have only and supply machine oil swimmingly to bearing surface BS and could reduce frictional loss.When but compressor carries out high capacity operation or high speed operation, oil temperature rises, viscosity reduces, friction between the metal takes place in the ground attenuation of oil film moment, promptly produces between main frame 2 and the movable orbiting scroll 5 directly to contact, increase the weight of frictional loss, when serious, wear and tear the hidden danger that exists compressor performance and confidence level all to reduce.
Summary of the invention
The present invention is the invention that proposes in order to deal with problems, and its objective is to providing a kind of and compressor operation conditions irrespectively to continue to obtain the bearing means of the scroll compressor of certain bearing effect.
The bearing means of scroll compressor of the present invention comprises the framework that is arranged on enclosure regularly, rotatably is placed on the framework, when being rotated motion and static vortex disk engagement and produce the movable orbiting scroll of several compression chambers that move continuously.Be placed between framework and the movable orbiting scroll, support the thrust bearing part of axial force.In framework,, be formed with the bearing insertion groove that inserts a thrust bearing part part can retrain the mode of thrust bearing part by radial direction.Thrust bearing part is by being formed with sliding-groove in the above and being combined in the following ring of frame bearing insertion groove with being pressed into, can be placed on the sliding-groove, be arranged with several circlewise and be held the solid of rotation that frame supports, be formed with the ring of going up that allows the first half of solid of rotation contact the sliding-groove top slidably and constitute.
The invention effect
The bearing means of scroll compressor of the present invention between main frame and movable orbiting scroll, is placed other thrust bearing part, can prevent frictional loss or wearing and tearing between main frame and the movable orbiting scroll, can improve compressor performance and confidence level.
Description of drawings
Fig. 1 is the scroll compressor generalized section of prior art.
Fig. 2 is the compression mechanical part part generalized section of scroll compressor of the present invention.
Fig. 3 is the ball bearing decomposing schematic representation that scroll compressor of the present invention is suitable for.
Fig. 4 is a scroll compressor ball bearing assembled state generalized section of the present invention.
Accompanying drawing critical piece remarks
4: static vortex disk 4b: decide scrollwork
10: main frame 13: bearing insertion groove
20: movable orbiting scroll 21: hardboard portion
22: moving scrollwork 30: thrust bearing part
Embodiment
Below, with reference to an embodiment of accompanying drawing, the bearing means of scroll compressor of the present invention is elaborated.
Fig. 3 is the ball bearing decomposing schematic representation that scroll compressor of the present invention is suitable for.Fig. 4 is a scroll compressor ball bearing assembled state generalized section of the present invention.
As shown in the figure, the bearing means of scroll compressor of the present invention comprises the main frame 10 that is arranged on shell 1 inside regularly; Be placed on above the main frame 10, combine prejudicially when rotatablely moving, with the movable orbiting scroll 20 of static vortex disk 4 engagements formation a pair of compression chamber P with the live axle 3C of drive motor 3; Be placed between main frame 10 and the movable orbiting scroll 20, support the thrust bearing part 30 of movable orbiting scroll 20 in the axial force direction.
Central authorities at main frame 10, be formed with axis hole 11 by radial direction support drive motor driving shaft 3C, in the upper end of axis hole 11, be formed with and allow the rotatably joint accepting groove 12 of combination of movable orbiting scroll 20 connector portions (not having symbol) that movable orbiting scroll 20 combines with live axle 3C.
On main frame 10, hollowly form the bearing insertion groove 13 that allows thrust bearing part 30 parts insert by certain depth.
On the hardboard portion 21 of movable orbiting scroll 20, be formed with static vortex disk 4 decide scrollwork 4b engagement, form the moving scrollwork 22 of spirality of compression chamber P.Hardboard portion 21 bottom surfaces of movable orbiting scroll 20 entirely form, so that contact slidably with the top of thrust bearing part 30 described later.
The number of thrust bearing part 30 can be one, but also can according to circumstances press radial direction and arrange a plurality of.Under this situation, the bearing surface of each thrust bearing part 30 should be kept sustained height.
In the accompanying drawing, part same as the prior art has been quoted identical symbol.
The undeclared symbol 4d of accompanying drawing is an exhaust port, the 8th, and check valve.
The bearing means of scroll compressor of the present invention, its working principle is as follows.
That is, connect power supply to drive motor 3, during live axle 3C rotation, the movable orbiting scroll 20 with live axle 3C combines prejudicially carries out the off-centre rotation by the distance of off-centre.Meanwhile, movable orbiting scroll 20 is an initial point with the central shaft, is rotated in the distance of the turning radius of being separated by with it, forms a pair of compression chamber P with static vortex disk 4.Compression chamber P moves to the center gradually along with movable orbiting scroll 20 continues to be rotated motion, and its volume is reduced, compression refrigerant.
When movable orbiting scroll 20 is rotated motion with high capacity or high speed, not only the forward surface load between main frame 10 and the movable orbiting scroll 20 increases, and the temperature of lubricant oil rises the oil film attenuation, greasy property deteriorates into more than critical the lubricating, and the friction between the metal might occur.But as Fig. 3, shown in Figure 4, among the present invention, between main frame 10 and movable orbiting scroll 10, be placed with thrust bearing parts 30 such as ball bearing, can allow above the main frame 10 and keep the state of certain slit t of being separated by between movable orbiting scroll 20 bottom surfaces, ring 33 outer side surfaces contact slidably on the bottom surface of movable orbiting scroll 20 and the thrust bearing part 30, support the axial force between main frame 10 and the movable orbiting scroll 20, even do not obtain machine oil supply smoothly between main frame 10 and the movable orbiting scroll 20, or the stickiness of machine oil dies down, also, frictional loss or wearing and tearing be can prevent, compressor performance and confidence level improved thus owing between main frame 10 and movable orbiting scroll 20, be placed with thrust bearing part 30.
Claims (3)
1. the bearing means of a scroll compressor, compressor comprise the framework that is arranged on enclosure regularly, rotatably be placed on when rotatablely moving on the framework and static vortex disk engagement and produce the movable orbiting scroll of several compression chambers that move continuously; It is characterized in that: also comprise the thrust bearing part that is placed between framework and the movable orbiting scroll and supports axial force, in framework can retrain the mode of thrust bearing part by radial direction, be formed with the bearing insertion groove that inserts a thrust bearing part part, thrust bearing part is by being formed with sliding-groove in the above and being combined in the following ring of frame bearing insertion groove with being pressed into, can be placed on the sliding-groove and be arranged with circlewise several and be held the solid of rotation that frame supports, be formed with the ring of going up that allows the first half of solid of rotation contact the sliding-groove top slidably and constitute.
2. the bearing means of scroll compressor according to claim 1 is characterized in that: be placed with the back-up ring that prevents the movable orbiting scroll rotation between framework and movable orbiting scroll, thrust bearing part is positioned at than back-up ring more by the position at center.
3. the bearing means of scroll compressor according to claim 2, it is characterized in that: thrust bearing part, its outer circumferential face contacts with the back-up ring inner peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101304495A CN101205908B (en) | 2006-12-20 | 2006-12-20 | Bearing arrangement of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101304495A CN101205908B (en) | 2006-12-20 | 2006-12-20 | Bearing arrangement of scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101205908A CN101205908A (en) | 2008-06-25 |
| CN101205908B true CN101205908B (en) | 2011-09-07 |
Family
ID=39566320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101304495A Expired - Fee Related CN101205908B (en) | 2006-12-20 | 2006-12-20 | Bearing arrangement of scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205908B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777384B (en) * | 2011-05-13 | 2016-03-30 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor, method of manufacturing the same, and rotary machine |
| JP2019218910A (en) * | 2018-06-20 | 2019-12-26 | 株式会社デンソー | Compressor |
| US20220220852A1 (en) * | 2019-04-30 | 2022-07-14 | Agilent Technologies, Inc. | Double Sided Oil Film Thrust Bearing in a Scroll Pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016259B (en) * | 1987-03-12 | 1992-04-15 | 松下电器工业有限公司 | Scroll compressor |
| CN1548762A (en) * | 2003-05-22 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Axial leakage prevention apparatus for winding shaft compressor |
-
2006
- 2006-12-20 CN CN2006101304495A patent/CN101205908B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016259B (en) * | 1987-03-12 | 1992-04-15 | 松下电器工业有限公司 | Scroll compressor |
| CN1548762A (en) * | 2003-05-22 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Axial leakage prevention apparatus for winding shaft compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101205908A (en) | 2008-06-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20161220 |