CN201810555U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN201810555U CN201810555U CN 201020567954 CN201020567954U CN201810555U CN 201810555 U CN201810555 U CN 201810555U CN 201020567954 CN201020567954 CN 201020567954 CN 201020567954 U CN201020567954 U CN 201020567954U CN 201810555 U CN201810555 U CN 201810555U
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- China
- Prior art keywords
- rotor
- main bearing
- end surface
- bearing
- rotary compressor
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- Expired - Fee Related
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Abstract
The utility model discloses a rotary compressor, comprising a compression assembly and a motor assembly arranged in a shell body, wherein the compression assembly comprises a cylinder, a piston arranged in the cylinder, a crankshaft which drives the piston to rotate eccentrically, a main bearing and a subsidiary bearing respectively arranged at the two sides of the cylinder; the motor assembly comprises a stator and a rotor, wherein the stator is fixed on the inner wall of the shell body; the rotor is fixed on the crankshaft; a rolling bearing used for thrusting is arranged between the rotor and the main bearing; the rolling bearing comprises a rolling body and a retainer; the upper end face of the main bearing and the lower end face of the rotor are provided with a carburizing layer through the carburizing treatment or a nitriding layer through the nitriding treatment; the thickness of the carburizing layer or the nitriding layer is more than or equal to 0.08mm; and the surface hardness of the upper end face of the main bearing and the lower end face of the rotor is more than or equal to HV 400. The rotary compressor of the utility model has the characteristics of being simple and reasonable in structure, flexible in operation, easy in processing, low in manufacturing cost, low in abrasion wear, long in service life and wide in application range.
Description
Technical field
The utility model relates to a kind of rotary compressor.
Background technique
Existing rotary compressor, comprise the compression assembly and the electric machine assembly that are arranged in the housing 1, compression assembly comprises cylinder 2, is arranged on piston 3, the bent axle 4 that driven plunger 3 is made eccentric rotary, the main bearing 5 that is separately positioned on cylinder 2 both sides and supplementary bearing 6 in the cylinder 2.Electric machine assembly comprises stator 7 and rotor 8, and stator 7 is fixed on the inwall of housing 1, and rotor 8 is fixed on the bent axle 4.Surface roughness, planeness and the hardness of the upper-end surface of the main bearing 5 of this rotary compressor are not taked special processing, and same, be not strict with surface roughness, planeness and hardness the lower end surface of the iron core of rotor 8 yet.
When for the rotary compressor that does not adopt rolling bearing 9 thrusts between main bearing 5 and rotor 8, its influence is little; But, when for the rotary compressor of thrust structure between main bearing 5 and rotor 8, abrasion can take place greatly, rolling bearing easily lost efficacy, the flimsy phenomenon of main bearing and rotor.
The model utility content
The purpose of this utility model aims to provide a kind of simple and reasonable, flexible operation, easily processing, fabricating cost is low, abrasion are low, long service life, rotary compressor applied widely, to overcome deficiency of the prior art.
A kind of rotary compressor by this purpose design, comprise the compression assembly and the electric machine assembly that are arranged in the housing, compression assembly comprises cylinder, is arranged on piston, the bent axle that driven plunger is made eccentric rotary, the main bearing that is separately positioned on the cylinder both sides and supplementary bearing in the cylinder; Electric machine assembly comprises stator and rotor, stator is fixed on the inwall of housing, rotor is fixed on the bent axle, be provided with the rolling bearing that is used for thrust between rotor and the main bearing, rolling bearing comprises rolling element and retainer, and its structure characteristic is that the upper-end surface of described main bearing and the lower end surface of rotor are provided with through the carburized case of Carburization Treatment or the nitriding layer of handling through nitriding.
Thickness 〉=the 0.08mm of described carburized case or nitriding layer.
Surface hardness 〉=the HV400 of the upper-end surface of described main bearing and the lower end surface of rotor.
Roughness≤the RZ6.4 of the upper-end surface of described main bearing and the lower end surface of rotor, planeness≤6 μ m.
When rotary compressor was worked, the rolling bearing that is used for thrust contacted with the upper-end surface of main bearing and the lower end surface of rotor respectively, and the active force of component is born by rolling bearing from doing in relative rotation, can further pass to main bearing simultaneously.The utility model is by having adopted relevant treatment to the upper-end surface of main bearing and the lower end surface of rotor, make its surface hardness, roughness and plane all improve greatly, so can reduce to do frictional force between the component and the wear intensity that reduces these component in relative rotation, thereby improve the efficiency of rotary compressor and prolong its working life.
The utlity model has simple and reasonable, flexible operation, easily processing, fabricating cost is low, abrasion are low, long service life, advantage of wide range of application.
Description of drawings
Fig. 1 is the utility model one embodiment's a broken section structural representation.
Fig. 2 is the broken section structural representation of rotor.
Fig. 3 is the broken section structural representation of main bearing.
Among the figure: 1 is housing, and 2 is cylinder, and 3 is piston, and 4 is bent axle, and 5 is main bearing, and 6 is supplementary bearing, and 7 is stator, and 8 is rotor, and 9 is rolling bearing.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 3, this rotary compressor, comprise the compression assembly and the electric machine assembly that are arranged in the housing 1, compression assembly comprises cylinder 2, is arranged on piston 3, the bent axle 4 that driven plunger 3 is made eccentric rotary, the main bearing 5 that is separately positioned on cylinder 2 both sides and supplementary bearing 6 in the cylinder 2; Electric machine assembly comprises stator 7 and rotor 8, stator 7 is fixed on the inwall of housing 1, rotor 8 is fixed on the bent axle 4, be provided with the rolling bearing 9 that is used for thrust between rotor 8 and the main bearing 5, rolling bearing 9 comprises rolling element and retainer, and the lower end surface of the upper-end surface of main bearing 5 and rotor 8 is provided with the nitriding layer through the carburized case of Carburization Treatment or process nitriding processing.Thickness 〉=the 0.08mm of carburized case or nitriding layer.Surface hardness 〉=the HV400 of the lower end surface of the upper-end surface of main bearing 5 and rotor 8.
Finish turning or correct grinding are carried out in the upper-end surface of main bearing 5 and the lower end surface of rotor 8, make roughness≤RZ6.4, the planeness≤6 μ m of lower end surface of the upper-end surface of main bearing 5 and rotor 8.
Claims (4)
1. rotary compressor, comprise the compression assembly and the electric machine assembly that are arranged in the housing (1), compression assembly comprises cylinder (2), is arranged on piston (3), the bent axle (4) that driven plunger (3) is made eccentric rotary, the main bearing (5) that is separately positioned on cylinder (2) both sides and supplementary bearing (6) in the cylinder (2); Electric machine assembly comprises stator (7) and rotor (8), stator (7) is fixed on the inwall of housing (1), rotor (8) is fixed on the bent axle (4), be provided with the rolling bearing (9) that is used for thrust between rotor (8) and the main bearing (5), rolling bearing (9) comprises rolling element and retainer, it is characterized in that the upper-end surface of described main bearing (5) and the lower end surface of rotor (8) are provided with through the carburized case of Carburization Treatment or the nitriding layer of handling through nitriding.
2. rotary compressor according to claim 1 is characterized in that the thickness 〉=0.08mm of described carburized case or nitriding layer.
3. rotary compressor according to claim 1 and 2 is characterized in that the surface hardness 〉=HV400 of the lower end surface of the upper-end surface of described main bearing (5) and rotor (8).
4. rotary compressor according to claim 3 is characterized in that roughness≤RZ6.4, the planeness≤6 μ m of the lower end surface of the upper-end surface of described main bearing (5) and rotor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020567954 CN201810555U (en) | 2010-10-13 | 2010-10-13 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020567954 CN201810555U (en) | 2010-10-13 | 2010-10-13 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810555U true CN201810555U (en) | 2011-04-27 |
Family
ID=43893497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020567954 Expired - Fee Related CN201810555U (en) | 2010-10-13 | 2010-10-13 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833014A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Main bearing, compressor, refrigeration equipment and production process |
-
2010
- 2010-10-13 CN CN 201020567954 patent/CN201810555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833014A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Main bearing, compressor, refrigeration equipment and production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110427 Termination date: 20191013 |