CN2871922Y - Two-way gland-sealed compressor of air conditioner for automobile - Google Patents
Two-way gland-sealed compressor of air conditioner for automobile Download PDFInfo
- Publication number
- CN2871922Y CN2871922Y CN 200520033350 CN200520033350U CN2871922Y CN 2871922 Y CN2871922 Y CN 2871922Y CN 200520033350 CN200520033350 CN 200520033350 CN 200520033350 U CN200520033350 U CN 200520033350U CN 2871922 Y CN2871922 Y CN 2871922Y
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- CN
- China
- Prior art keywords
- upper casing
- bearing
- main shaft
- axle envelope
- air conditioner
- 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 - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a bidirectional shaft seal type vehicle air-conditioning compressor, which comprises a lower casing (1), an upper casing (2) connected with the lower casing, a main shaft (4) on the upper casing, a bearing (3, 5) arranged on the upper casing and the main shaft respectively, a clutch assembly (9) arranged outside the upper casing, the utility model is characterized in that a symmetrical shaft seal (6, 7) is arranged on top opening inner end of the bearing (5) and the upper casing or the main shaft between the bearings (3, 5). The utility model has the advantages that the model can prevent leak of internal refrigerant reliably and prevent invasion of external dust in sealing reliably, increase axiality accuracy of mounting hole on the upper casing bearing, improve assembly accuracy, and is favorable to assembly, repair, wide range of bearing for selection, and easy for lubrication.
Description
Technical field:
The utility model is relevant with air condition compressor, and is relevant with two-way axle envelope formula automobile air conditioner compressor especially.
Background technique:
Present domestic and international existing automobile air conditioner compressor ubiquity main shaft seal leakage problem.Automobile air conditioner compressor as shown in Figure 3 is by upper casing 2 and the lower casing 1 that is connected with upper casing 2, is contained in the main shaft 4 on the upper casing, is loaded on the bearing 3,5 on the main shaft, is positioned at compositions such as axle envelope 6 between bearing, clutch assembly 9.Because the axle envelope is the one-way sealing mode, so there is following shortcoming:
1), axle is enclosed in the low-pressure cavity, and when negative pressure occurring once in a while when compressor operating, outside air pressure can be washed axle envelope lip open and be pressed in the compressor, causes entrained air in the refrigeration agent, influences refrigeration, causes the compressor leakage of oil, even damages compressor.
2), when the axle envelope is installed, need take off clutch, take off the upper and lower shell link, lay down upper casing, take out the assembly (being a tight fit in the parts such as main shaft on the bearing) be fitted on the upper casing after, can change the axle envelope, in case axle envelope is damaged, it changes quite difficulty, and assembling, maintenance are very inconvenient;
3), bearing 5 can only adopt self oiling bearing;
4), be difficult to guarantee coaxality, the assembly precision of the bearing hole of upper casing dress bearing 3,5 during processing and assembling
The model utility content:
The purpose of this utility model is in order to overcome above deficiency, provide a kind of and can stop leaking and stoping the sealing of intrusion of external dust reliable of internal refrigeration storage agent reliably, improve the mounting hole processing of upper casing bearing coaxial accuracy, improve assembly precision, help assembling, maintenance, the two-way axle envelope formula automobile air conditioner compressor that the bearing range of choice is wide, easy to lubricate.
The purpose of this utility model is achieved like this:
The two-way axle envelope of the utility model formula automobile air conditioner compressor, comprise lower casing, the upper casing that is connected with lower casing, be contained in the main shaft on the upper casing, be contained in the bearing 3,5 on upper casing and the main shaft respectively, be contained in the outer clutch assembly of upper casing, have symmetry to be loaded on axle envelope 6,7 on the main shaft at the top of bearing 5 and upper casing mouth inner end or 3,5 on bearing.
Above-mentioned axle envelope 6,7 is positioned between the top mouth inner end of bearing 5 and upper casing, and the protruding terminus end face on the axle envelope 6,7 is respectively with respect to the top mouth inner end of bearing 5 end faces, upper casing.
Above-mentioned axle envelope 6,7 is positioned at 3,5 on bearing, and the protruding terminus end face on the axle envelope 6,7 is respectively with respect to the end face of bearing 3,5.
The top mouth inner end of above-mentioned upper casing is equipped with the collar that is pressed on the axle envelope 7.
The utility model is compared with existing automobile air conditioner compressor, has following advantage:
One, main shaft seal adopts bidirectional mode, has broken through the axle envelope mode that adopts the main shaft one-way sealing.When having overcome existing automobile air conditioner compressor and having adopted main shaft one-way sealing axle envelope, when forming negative pressure once in a while, compressor operating internal spindle sealing part sucks air inwards from the outside, when forming negative pressure once in a while, the main shaft seal place can inhale negative pressure square shaft envelope lip, make between forward and reverse two-way axle envelope and form vacuum, press to main shaft more closely when forcing two-way axle to be enclosed in to face two-way positive air pressure, form sealing reliably.
Two, the outboard shafts envelope in the two-way axle envelope can stop the intrusion of outside barotropic gas and dust, inner shafts envelope can stop leaking of internal refrigeration storage agent reliably reliably, improves the reliable sealing performance of compressor.
When three, two-way axle end-blocking was put, bearing 5 adoptable bearing ranges of choice were wide, easy to lubricate, can adopt self oiling bearing, also can utilize the oil lubrication in the compressor, adopt non-self oiling bearing.
When four, two-way axle end-blocking is put, can make things convenient for the repair and replacement of axle envelope, only need pull down clutch compressing disc and axle envelope collar, seal for the convenient axle that takes out wearing and tearing that pressurizes in the compressor and changed.When two-way axle envelope is built-in, only need pull down clutch compressing disc,, pull down an envelope collar, give the axle that takes out wearing and tearing in the compressor after pressurization envelope, just can quick and conveniently change with pawl allocation lower bearing.
When five, two-way axle end-blocking is put, the bearing of main shaft, several inner bore of step of axle envelope are installed in the upper casing, can be processed into through hole, good manufacturability, can improve the coaxality of this inner bore of step, help improving the assembly precision of compressor from one side one-time positioning clamping.When two-way axle envelope is built-in, but the equal one-time positioning clamping of big bearing, axle sealing of hole position, the unidirectional through hole that is processed into, the left end of two-way axle Feng Kecong upper casing such as Fig. 2 is packed into or dismantle, conveniently maintenance from now on.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is another structural representation of the utility model.
Fig. 3 is the structural representation of existing automobile air conditioner compressor.
Embodiment:
Embodiment 1:
Fig. 1 has provided present embodiment 1 figure.Link together by bolt referring to Fig. 1, upper casing 1 and lower casing 2.Clutch assembly 9 is contained in outside the upper casing.Main shaft 4 places 3,5 on the large and small bearing of upper casing, and large and small bearing 3,5 is contained on main shaft and the upper casing.Two- way axle envelope 6,7 forward and reverse symmetries are positioned at bearing 5 and upper casing top mouthful inner end and are contained on the main shaft.The protruding terminus of two- way axle envelope 6,7 is respectively with respect to bearing 5 end faces and upper casing top mouthful inner end.The collar 8 that is contained in upper casing inside compresses axle envelope 7.Sequence number 10,11 is represented low-pressure cavity, hyperbaric chamber respectively among the figure.
Embodiment 2:
Fig. 2 has provided present embodiment 2 figure.Present embodiment 2 basic with embodiment 1 with, not existing together is that two- way axle seals 6,7 and is positioned at 3,5 on bearing and forward and reverse symmetry is contained on the main shaft, its protruding terminus is respectively with respect to the end face of bearing 3,5.
Fig. 3 is existing vortex type automobile air conditioner compressor structural representation.The axle envelope is unidirectional being installed on housing and the main shaft.
Claims (6)
1, two-way axle envelope formula automobile air conditioner compressor, comprise lower casing (1), the upper casing that is connected with lower casing (2), be contained in the main shaft (4) on the upper casing, be contained in the bearing (3,5) on upper casing and the main shaft respectively, be contained in the outer clutch assembly (9) of upper casing, it is characterized in that the axle that has symmetry to be loaded on the main shaft seals (6,7) between the mouth inner end of the top of bearing (5) and upper casing.
2, two-way axle envelope formula automobile air conditioner compressor as claimed in claim 1 is characterized in that protruding terminus end face on the axle envelope (6,7) is respectively with respect to the top mouth inner end of bearing (5) end face, upper casing.
3, two-way axle envelope formula automobile air conditioner compressor as claimed in claim 1 or 2 is characterized in that the top mouth inner end of upper casing is equipped with the collar (8) that is pressed on the axle envelope (7).
4, two-way axle envelope formula automobile air conditioner compressor, it is characterized in that comprising lower casing (1), the upper casing that is connected with lower casing (2), be contained in the main shaft (4) on the upper casing, be contained in the bearing (3,5) on upper casing and the main shaft respectively, be contained in the outer clutch assembly (9) of upper casing, it is characterized in that the axle that has symmetry to be loaded on the main shaft seals (6,7) between bearing (3,5).
5, two-way axle envelope formula automobile air conditioner compressor as claimed in claim 4 is characterized in that protruding terminus end face on the axle envelope (6,7) is respectively with respect to the end face of bearing (3,5).
6, as claim 4 or 5 described two-way axle envelope formula automobile air conditioner compressors, it is characterized in that the top mouth inner end of upper casing is equipped with the collar (8) that is pressed on the axle envelope (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033350 CN2871922Y (en) | 2005-03-02 | 2005-03-02 | Two-way gland-sealed compressor of air conditioner for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033350 CN2871922Y (en) | 2005-03-02 | 2005-03-02 | Two-way gland-sealed compressor of air conditioner for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871922Y true CN2871922Y (en) | 2007-02-21 |
Family
ID=37740269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033350 Expired - Fee Related CN2871922Y (en) | 2005-03-02 | 2005-03-02 | Two-way gland-sealed compressor of air conditioner for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871922Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112917257A (en) * | 2021-01-27 | 2021-06-08 | 诸暨市惠田机电制造有限公司 | Metal pipe polishing device for hardware mechanical fittings |
-
2005
- 2005-03-02 CN CN 200520033350 patent/CN2871922Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112917257A (en) * | 2021-01-27 | 2021-06-08 | 诸暨市惠田机电制造有限公司 | Metal pipe polishing device for hardware mechanical fittings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |