CN103850938B - The suction and exhaust structure of double-stage compressor - Google Patents
The suction and exhaust structure of double-stage compressor Download PDFInfo
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- CN103850938B CN103850938B CN201310712887.2A CN201310712887A CN103850938B CN 103850938 B CN103850938 B CN 103850938B CN 201310712887 A CN201310712887 A CN 201310712887A CN 103850938 B CN103850938 B CN 103850938B
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Abstract
The suction and exhaust structure of double-stage compressor disclosed by the invention, including 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 aerofluxus cavity；The upper and lower off-centre operation coordinated with upper and lower roller on bent axle be arranged in parallel in centrage the same side of bent axle, and the deflection center line concentric of upper and lower off-centre operation overlaps；The upper and lower slide plate coordinated with upper and lower roller on described upper and lower cylinder sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, gliding groove spring eye also symmetrical 180 ° of distributions centered by crankshaft axis of the upper hopper chute spring eye of corresponding upper slide plate lower slide plate corresponding on lower cylinder on upper cylinder；The air entry of corresponding lower cylinder and the air vent of upper cylinder be symmetrical 180 ° of distributions centered by crankshaft axis；Realize heteropleural symmetrical, noise source distance is remote, it is to avoid high frequency time noise vibration is overlapped in the same direction, is effectively reduced noise and the vibration of compressor.
Description
[technical field]
The present invention relates to double-stage compressor, particularly relate to the suction and exhaust structure of double-stage compressor.
[background technology]
Double-stage compressor, typically via two second compression, improves compression ratio, is very suitable for low-temperature heating when high pressure ratio, is also suitable for air-conditioning high-temperature refrigeration when high pressure ratio equally.As shown in Figures 1 to 4, general double-stage compressor includes, lower cylinder (1a, 2a), bent axle 3a's is upper, lower off-centre operation (30a, 31a) symmetrical 180 ° of distributions, cylinder vane slot X corresponding with lower cylinder 2a for upper cylinder 1a and the assembling of spring eye Y homonymy, suction hole E and air vent F is respectively provided with on the same axis, in the course of the work, the air-breathing of upper cylinder 1a is to be provided by lower cylinder 2a aerofluxus, the intermittence (only about 120 degree of scope aerofluxuss) of the corresponding lower cylinder 2a aerofluxus of upper cylinder 1a air-breathing seriality (360 degree all in air-breathing), rotate fast plus compressor, general 0.02 second/turn, owing to suction hole and air vent are arranged on the same axis, distance is very near, necessarily cause that compressor produces the noise vibration of high frequency time；Simultaneously as cylinder vane slot X and the assembling of spring eye Y also homonymy, the high frequency time noise vibration further resulting in compressor generation is overlapped in the same direction, further increases compressor noise and vibration.
[summary of the invention]
The present invention provides a kind of and reduces compressor noise and vibration, reduces the suction and exhaust structure of the double-stage compressor of Crankshaft Machining cost.
In order to realize foregoing invention purpose, the technical solution used in the present invention is:
The suction and exhaust structure of double-stage compressor, including 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 aerofluxus cavity；Being equipped with on described bent axle and the upper and lower roller of upper and lower cylinder inner cavity cooperating, the upper and lower off-centre operation that bent axle coordinates with upper and lower roller be arranged in parallel in centrage the same side of bent axle, and the deflection center line concentric of upper and lower off-centre operation overlaps；The upper and lower slide plate coordinated with upper and lower roller on described upper and lower cylinder sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, gliding groove spring eye also symmetrical 180 ° of distributions centered by crankshaft axis of the upper hopper chute spring eye of corresponding upper slide plate lower slide plate corresponding on lower cylinder on upper cylinder；The air entry of corresponding lower cylinder and the air vent of upper cylinder be symmetrical 180 ° of distributions centered by crankshaft axis.
The invention has the beneficial effects as follows:
Upper and lower off-centre operation on bent axle of the present invention adopts and be arranged in parallel in centrage the same side of bent axle, and the deflection center line concentric of upper and lower off-centre operation overlaps, the structure of corresponding bent axle, the air entry of lower cylinder is also symmetrical 180 ° of distributions centered by crankshaft axis with the air vent of upper cylinder；Simultaneously, the vane slot corresponding on upper and lower cylinder sidewall of upper and lower slide plate is also with the symmetrical 180 ° of distributions of crankshaft axis, air entry and air vent, upper hopper chute spring eye and gliding groove spring eye is made all to realize heteropleural symmetrical, so, balance the compressional vibration moment of upper and lower cylinder better, make noise source (air entry, air vent) distance become remote, be effectively reduced noise and the vibration of compressor；Again owing to the spring movement of upper and lower slide plate and correspondence thereof is in opposite direction, (compressor rotates fast to avoid the high frequency time noise vibration that compressor produces, general 0.02 second/turn) it is overlapped in the same direction, reduce noise and the vibration of compressor further, improve the service behaviour of compressor.
Additionally, crankshaft eccentric circle homonymy and axis homonymy, upper and lower off-centre operation adopts and be arranged in parallel in centrage the same side of bent axle, crank shaft blank and processing request are similar to single off-centre operation, can effectively reducing the rapidoprint of bent axle, the blank cost more symmetrical than traditional eccentric circle and processing cost are low.
[accompanying drawing explanation]
Fig. 1 is the structure for amplifying schematic diagram of bent axle in prior art；
Fig. 2 is bent axle and upper and lower cylinder, flange and roller assembly relation section view enlarged diagram in prior art；
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 present invention；
Fig. 6 is bent axle and upper and lower cylinder, flange and roller assembly relation section view enlarged diagram in the present invention；
Fig. 7 is the plan structure schematic diagram of bent axle and upper and lower cylinder and roller assembly relation in invention；
Fig. 8 is the sectional structure schematic diagram of Two-stage Compression in invention.
[detailed description of the invention]
The suction and exhaust structure of double-stage compressor, as shown in Fig. 5 to Fig. 8, including 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 lid is located at the lower end of lower flange 10 and forms lower cylinder aerofluxus cavity A, upper cylinder 7, dividing plate 8, lower cylinder 9 and lower flange 10 offers and the two-stage compression passage (not shown) of lower cylinder aerofluxus cavity conducting；Bent axle 1 is equipped with the upper and lower roller (2,4) with upper and lower cylinder (7,9) inner chamber cooperating, the upper and lower off-centre operation (20,40) coordinated with upper and lower roller (2,4) on bent axle 1 be arranged in parallel in centrage the same side of bent axle 1, and the deflection center line concentric of upper and lower off-centre operation (20,40) overlaps；Wherein, the upper and lower slide plate (3,5) coordinated with upper and lower roller (2,4) on upper and lower cylinder (7,9) sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, gliding groove spring eye 13 also symmetrical 180 ° of distributions centered by bent axle 1 centrage of the upper hopper chute spring eye 12 of corresponding upper slide plate 3 lower slide plate 5 corresponding on lower cylinder 9 on upper cylinder 7；The symmetrical 180 ° of distributions centered by crankshaft axis of the air entry 14 of corresponding lower cylinder 9 and the air vent 15 of upper cylinder 7.
Owing to the upper and lower off-centre operation (20,40) on bent axle 1 of the present invention be arranged in parallel in crankshaft axis the same side, it is possible to effectively reduce the rapidoprint of bent axle, reduce the production cost of bent axle.The structure of corresponding bent axle, the air entry 14 of lower cylinder 9 is also symmetrical 180 ° of distributions centered by crankshaft axis with the air vent 15 of upper cylinder 7；Simultaneously, the vane slot corresponding on upper and lower cylinder (7,9) sidewall of upper and lower slide plate (3,5) is also with the symmetrical 180 ° of distributions of crankshaft axis, air entry 14 and air vent 15, upper hopper chute spring eye 12 and gliding groove spring eye 13 is made all to realize heteropleural symmetrical, so, balance the compressional vibration moment of upper and lower cylinder (7,9) better, make noise source (air entry, air vent) distance become remote, be effectively reduced noise and the vibration of compressor；Again owing to upper and lower slide plate (3,5) and the spring movement of correspondence thereof are in opposite direction, (compressor rotates fast to avoid the high frequency time noise vibration that compressor produces, general 0.02 second/turn) it is overlapped in the same direction, reduce noise and the vibration of compressor further, improve the service behaviour of compressor.
Embodiment described above is simply presently preferred embodiments of the present invention, not limits the practical range of the present invention, all equivalence changes made according to the shape of the present invention, structure and principle with this, all should be covered by protection scope of the present invention.
Claims (1)
1. the suction and exhaust structure of double-stage compressor, including 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 aerofluxus cavity；It is characterized in that:
Being equipped with on described bent axle and the upper and lower roller of upper and lower cylinder inner cavity cooperating, the upper and lower off-centre operation that bent axle coordinates with upper and lower roller be arranged in parallel in centrage the same side of bent axle, and the deflection center line concentric of upper and lower off-centre operation overlaps；
The upper and lower slide plate coordinated with upper and lower roller on described upper and lower cylinder sidewall is symmetrical 180 ° of distributions centered by crankshaft axis, gliding groove spring eye also symmetrical 180 ° of distributions centered by crankshaft axis of the upper hopper chute spring eye of corresponding upper slide plate lower slide plate corresponding on lower cylinder on upper cylinder；
The air entry of corresponding lower cylinder and the air vent of upper cylinder be symmetrical 180 ° of distributions centered by crankshaft axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310712887.2A CN103850938B (en) | 2013-12-20 | 2013-12-20 | The suction and exhaust structure of double-stage compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310712887.2A CN103850938B (en) | 2013-12-20 | 2013-12-20 | The suction and exhaust structure of double-stage compressor |
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| Publication Number | Publication Date |
|---|---|
| CN103850938A CN103850938A (en) | 2014-06-11 |
| CN103850938B true CN103850938B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310712887.2A Active CN103850938B (en) | 2013-12-20 | 2013-12-20 | The suction and exhaust structure of double-stage compressor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332920B (en) * | 2014-07-07 | 2018-02-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Baffle assembly and three cylinder double-stage compressors for three cylinder double-stage compressors |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951261A (en) * | 1998-06-17 | 1999-09-14 | Tecumseh Products Company | Reversible drive compressor |
| CN1488861A (en) * | 2002-10-09 | 2004-04-14 | ���ǵ�����ʽ���� | Rotary compressor |
| CN1782399A (en) * | 2004-11-30 | 2006-06-07 | 日立家用电器公司 | Rotary 2 stage compressor |
| CN1793661A (en) * | 2004-12-22 | 2006-06-28 | 日立家用电器公司 | Rotary two-stage compressor and air conditioner using the compressor |
| CN1793656A (en) * | 2004-12-22 | 2006-06-28 | 日立家用电器公司 | Rotary two-stage compressor |
| CN203742986U (en) * | 2013-12-20 | 2014-07-30 | 珠海凌达压缩机有限公司 | Suction-exhaust structure of double-stage compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001271776A (en) * | 2000-03-24 | 2001-10-05 | Sanyo Electric Co Ltd | Rotary compressor |
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- 2013-12-20 CN CN201310712887.2A patent/CN103850938B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951261A (en) * | 1998-06-17 | 1999-09-14 | Tecumseh Products Company | Reversible drive compressor |
| CN1488861A (en) * | 2002-10-09 | 2004-04-14 | ���ǵ�����ʽ���� | Rotary compressor |
| CN1782399A (en) * | 2004-11-30 | 2006-06-07 | 日立家用电器公司 | Rotary 2 stage compressor |
| CN1793661A (en) * | 2004-12-22 | 2006-06-28 | 日立家用电器公司 | Rotary two-stage compressor and air conditioner using the compressor |
| CN1793656A (en) * | 2004-12-22 | 2006-06-28 | 日立家用电器公司 | Rotary two-stage compressor |
| CN203742986U (en) * | 2013-12-20 | 2014-07-30 | 珠海凌达压缩机有限公司 | Suction-exhaust structure of double-stage compressor |
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| CN103850938A (en) | 2014-06-11 |
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