CN203742986U - suction and exhaust structure of two-stage compressor - Google Patents
suction and exhaust structure of two-stage compressor Download PDFInfo
- Publication number
- CN203742986U CN203742986U CN201320849868.XU CN201320849868U CN203742986U CN 203742986 U CN203742986 U CN 203742986U CN 201320849868 U CN201320849868 U CN 201320849868U CN 203742986 U CN203742986 U CN 203742986U
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- China
- Prior art keywords
- cylinder
- roller
- crankshaft
- bent axle
- flange
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- Expired - Lifetime
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- 238000009826 distribution Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a suction and exhaust structure of a two-stage compressor, which comprises a crankshaft, an upper roller, an upper slip sheet, a lower roller, a lower slip sheet, an upper flange, an upper cylinder, a clapboard, a lower cylinder, a lower flange and a lower flange cover plate, wherein the lower flange cover plate is arranged at the lower end of the lower flange and forms a lower cylinder exhaust cavity; the upper eccentric circle and the lower eccentric circle which are matched with the upper roller and the lower roller on the crankshaft are arranged in parallel on the same side of the center line of the crankshaft, and the deflection center lines of the upper eccentric circle and the lower eccentric circle are coincided with the same axis; the upper sliding sheet and the lower sliding sheet matched with the upper roller and the lower roller on the side walls of the upper cylinder and the lower cylinder are symmetrically distributed for 180 degrees by taking the central line of the crankshaft as a center, and an upper chute spring hole corresponding to the upper sliding sheet on the upper cylinder and a lower chute spring hole corresponding to the lower sliding sheet on the lower cylinder are also symmetrically distributed for 180 degrees by taking the central line of the crankshaft as a center; the corresponding air suction port of the lower cylinder and the corresponding air exhaust port of the upper cylinder are symmetrically distributed for 180 degrees by taking the central line of the crankshaft as the center; the superposition of high-frequency noise vibration in the same direction is avoided, and the noise and vibration of the compressor are effectively reduced.
Description
[technical field]
The utility model relates to compound compressor, relates in particular to the suction and exhaust structure of compound compressor.
[background technique]
Compound compressor generally, by twice compression, has improved compression ratio, is very suitable for the low-temperature heating under high pressure ratio condition, is equally also suitable for the air-conditioning high-temperature refrigeration under high pressure ratio condition.As shown in Figures 1 to 4, general compound compressor comprises, lower cylinder (1a, 2a), bent axle 3a's is upper, lower eccentric circle (30a, 31a) symmetrical 180 ° of distributions, the cylinder vane slot X that upper cylinder 1a is corresponding with lower cylinder 2a and the assembling of spring eye Y homonymy, suction port E and relief opening F are all arranged on same axis, in the course of the work, the air-breathing of upper cylinder 1a is to be provided by lower cylinder 2a exhaust, the intermittence (the 120 degree scope exhausts of only having an appointment) of the air-breathing continuity of upper cylinder 1a (360 degree are all air-breathing) corresponding lower cylinder 2a exhaust, add that compressor rotates fast, general 0.02 second/turn, because suction port and relief opening arrange on same axis, distance is very near, must cause compressor to produce the noise vibration of high frequency time, meanwhile, due to cylinder vane slot X and also homonymy assembling of spring eye Y, the high frequency time noise vibration that further causes compressor to produce superposes in same direction, has further increased compressor noise and vibration.
[model utility content]
The utility model provides a kind of reduction compressor noise and vibration, reduces the suction and exhaust structure of the compound compressor of Crankshaft Machining cost.
In order to realize above-mentioned model utility object, the technical solution adopted in the utility model is:
The suction and exhaust structure of compound compressor, comprise bent axle, upper roller, upper slide plate, lower roller, lower slide plate, upper flange, upper cylinder, dividing plate, lower cylinder, lower flange and lower flange cover plate, lower flange cover plate lid is located at the lower end of lower flange and forms lower cylinder exhaust cavity; On described bent axle, be equipped with the upper and lower roller with upper and lower cylinder inner cavity cooperating, the upper and lower eccentric circle coordinating with upper and lower roller on bent axle be arranged in parallel in center line the same side of bent axle, and the deflection center line concentric of upper and lower eccentric circle overlaps; The upper and lower slide plate coordinating with upper and lower roller on described upper and lower cylinder sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, the above upper hopper chute spring eye of slide plate and the also symmetrical 180 ° of distributions centered by crankshaft axis of the gliding groove spring eye of corresponding lower slide plate on lower cylinder of correspondence on upper cylinder; The corresponding intakeport of lower cylinder and the relief opening of upper cylinder be symmetrical 180 ° of distributions centered by crankshaft axis.
The beneficial effects of the utility model are:
Upper and lower eccentric circle on the utility model bent axle adopts and be arranged in parallel in center line the same side of bent axle, and the deflection center line concentric of upper and lower eccentric circle overlaps, the structure of corresponding bent axle, the also symmetrical 180 ° of distributions centered by crankshaft axis of the intakeport of lower cylinder and the relief opening of upper cylinder; Simultaneously, the vane slot of upper and lower slide plate correspondence on upper and lower cylinder sidewall is also with the symmetrical 180 ° of distributions of crankshaft axis, make intakeport and relief opening, upper hopper chute spring eye and gliding groove spring eye all realize heteropleural symmetrical, like this, the compressional vibration moment of the upper and lower cylinder of balance better, make noise source (intakeport, relief opening) distance become far away, effectively reduce noise and the vibration of compressor; Again because the spring moving direction of upper and lower slide plate and correspondence thereof is contrary, (compressor rotates fast to have avoided high frequency time noise vibration that compressor produces, general 0.02 second/turn) in same direction, superpose, reduce further noise and the vibration of compressor, improve the service behaviour of compressor.
In addition, crankshaft eccentric circle homonymy and axis homonymy, upper and lower eccentric circle adopts and be arranged in parallel in center line the same side of bent axle, crank shaft blank and processing request are similar to single eccentric circle, can effectively reduce the rapidoprint of bent axle, blank cost and the processing cost more symmetrical than conventional eccentric circle are low.
[accompanying drawing explanation]
Fig. 1 is the structure for amplifying schematic diagram of bent axle in prior art;
Fig. 2 is that in prior art, bent axle and upper and lower cylinder, flange and roller assembly relation are analysed and observe enlarged diagram;
Fig. 3 is the plan structure schematic diagram of bent axle and upper and lower cylinder and roller assembly relation in prior art;
Fig. 4 is the sectional structure schematic diagram of Two-stage Compression in prior art;
Fig. 5 is the structure for amplifying schematic diagram of bent axle in the utility model;
Fig. 6 is that in the utility model, bent axle and upper and lower cylinder, flange and roller assembly relation are analysed and observe enlarged diagram;
Fig. 7 is the plan structure schematic diagram of bent axle and upper and lower cylinder and roller assembly relation in model utility;
Fig. 8 is the sectional structure schematic diagram of Two-stage Compression in model utility.
[embodiment]
The suction and exhaust structure of compound compressor, as shown in Fig. 5 to Fig. 8, comprise bent axle 1, upper roller 2, upper slide plate 3, lower roller 4, lower slide plate 5, upper flange 6, upper cylinder 7, dividing plate 8, lower cylinder 9, lower flange 10 and lower flange cover plate 11, lower flange cover plate 11 lids are located at the lower end of lower flange 10 and form lower cylinder exhaust cavity A, offer the two-stage compression passage (not shown) with the conducting of lower cylinder exhaust cavity on upper cylinder 7, dividing plate 8, lower cylinder 9 and lower flange 10; On bent axle 1, be equipped with the upper and lower roller (2,4) with upper and lower cylinder (7,9) inner chamber cooperating, the upper and lower eccentric circle (20,40) coordinating with upper and lower roller (2,4) on bent axle 1 be arranged in parallel in center line the same side of bent axle 1, and the deflection center line concentric of upper and lower eccentric circle (20,40) overlaps; Wherein, the upper and lower slide plate (3,5) coordinating with upper and lower roller (2,4) on upper and lower cylinder (7,9) sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, the above upper hopper chute spring eye 12 of slide plate 3 and the also symmetrical 180 ° of distributions centered by bent axle 1 center line of the gliding groove spring eye 13 of corresponding lower slide plate 5 on lower cylinder 9 of correspondence on upper cylinder 7; The intakeport 14 of corresponding lower cylinder 9 and the symmetrical 180 ° of distributions centered by crankshaft axis of the relief opening 15 of upper cylinder 7.
Because the upper and lower eccentric circle on the utility model bent axle 1 (20,40) be arranged in parallel in crankshaft axis the same side, can effectively reduce the rapidoprint of bent axle, reduce the cost of production of bent axle.The structure of corresponding bent axle, the intakeport 14 of lower cylinder 9 and the also symmetrical 180 ° of distributions centered by crankshaft axis of the relief opening 15 of upper cylinder 7; Simultaneously, the vane slot of upper and lower slide plate (3,5) correspondence on upper and lower cylinder (7,9) sidewall is also with the symmetrical 180 ° of distributions of crankshaft axis, make intakeport 14 and relief opening 15, upper hopper chute spring eye 12 and gliding groove spring eye 13 all realize heteropleural symmetrical, like this, the compressional vibration moment of the upper and lower cylinder of balance (7,9) better, make noise source (intakeport, relief opening) distance become far away, effectively reduce noise and the vibration of compressor; Again because the spring moving direction of upper and lower slide plate (3,5) and correspondence thereof is contrary, (compressor rotates fast to have avoided high frequency time noise vibration that compressor produces, general 0.02 second/turn) in same direction, superpose, reduce further noise and the vibration of compressor, improve the service behaviour of compressor.
The above embodiment just, for preferred embodiment of the present utility model, not limits practical range of the present utility model with this, and the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by protection domain of the present utility model.
Claims (1)
1. the suction and exhaust structure of compound compressor, comprise bent axle, upper roller, upper slide plate, lower roller, lower slide plate, upper flange, upper cylinder, dividing plate, lower cylinder, lower flange and lower flange cover plate, lower flange cover plate lid is located at the lower end of lower flange and forms lower cylinder exhaust cavity; It is characterized in that:
On described bent axle, be equipped with the upper and lower roller with upper and lower cylinder inner cavity cooperating, the upper and lower eccentric circle coordinating with upper and lower roller on bent axle be arranged in parallel in center line the same side of bent axle, and the deflection center line concentric of upper and lower eccentric circle overlaps;
The upper and lower slide plate coordinating with upper and lower roller on described upper and lower cylinder sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, the above upper hopper chute spring eye of slide plate and the also symmetrical 180 ° of distributions centered by crankshaft axis of the gliding groove spring eye of corresponding lower slide plate on lower cylinder of correspondence on upper cylinder;
The corresponding intakeport of lower cylinder and the relief opening of upper cylinder be symmetrical 180 ° of distributions centered by crankshaft axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849868.XU CN203742986U (en) | 2013-12-20 | 2013-12-20 | suction and exhaust structure of two-stage compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849868.XU CN203742986U (en) | 2013-12-20 | 2013-12-20 | suction and exhaust structure of two-stage compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742986U true CN203742986U (en) | 2014-07-30 |
Family
ID=51342794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849868.XU Expired - Lifetime CN203742986U (en) | 2013-12-20 | 2013-12-20 | suction and exhaust structure of two-stage compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850938A (en) * | 2013-12-20 | 2014-06-11 | 珠海凌达压缩机有限公司 | suction and exhaust structure of two-stage compressor |
| CN113123969A (en) * | 2021-05-19 | 2021-07-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body and compressor with same |
-
2013
- 2013-12-20 CN CN201320849868.XU patent/CN203742986U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850938A (en) * | 2013-12-20 | 2014-06-11 | 珠海凌达压缩机有限公司 | suction and exhaust structure of two-stage compressor |
| CN103850938B (en) * | 2013-12-20 | 2016-07-06 | 珠海凌达压缩机有限公司 | suction and exhaust structure of two-stage compressor |
| CN113123969A (en) * | 2021-05-19 | 2021-07-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body and compressor with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |