CN202360394U - Oil injection compressor with three screw stems - Google Patents
Oil injection compressor with three screw stems Download PDFInfo
- Publication number
- CN202360394U CN202360394U CN201120463943XU CN201120463943U CN202360394U CN 202360394 U CN202360394 U CN 202360394U CN 201120463943X U CN201120463943X U CN 201120463943XU CN 201120463943 U CN201120463943 U CN 201120463943U CN 202360394 U CN202360394 U CN 202360394U
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- spirality
- male rotor
- rotor
- female
- casing
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Abstract
An oil injection compressor with three screw stems comprises a shell (1) and a spiral male rotor (2). Two ends of the spiral male rotor (2) are respectively supported in a main bearing, the main bearing is mounted in a main bearing block (3), and one end of the spiral male rotor (2) is connected with a driving device. The oil injection compressor with three screw stems is characterized in that two spiral female rotors (4) which are engaged with the spiral male rotor (2) are symmetrically arranged on the periphery of the spiral male rotor (2), two ends of each spiral female rotor (4) are supported in respectively auxiliary bearings, and the auxiliary bearings are mounted in auxiliary bearing blocks (5) on the shell (1). The oil injection compressor is high in efficiency, long in service life and low in cost, and radial stress of the male rotor is completely balanced.
Description
Technical field
The utility model relates to a kind of air compressor, especially a kind of screw air compressor, specifically a kind of oil spout three helical-lobe compressors of male rotor radial force complete equilibrium.
Background technique
As everyone knows; Tradition oil spout double-screw compressor respectively has a negative and positive rotor; By male rotor drive female rotor rotation, forms a compression chamber jointly by rotor recesses, casing Eight characters hole, along with the continuous rotation element volume of rotor constantly dwindles last and vent ports connection completion compression process.As shown in Figure 1; Male rotor 2 passes through bearing fixing in the cavity of fuselage and bearing support 3 formation with female rotor 4; Constantly rotate through rotor, in the common enclosed cavity that forms of rotor recesses and casing, accomplish the process of air-breathing, compression, exhaust, its intakeport, relief opening have only 1; Compression process also has only 1; Simultaneously male rotor 2 radially reaches axial force as what power source received female rotor all the time in the process of carrying out suction and discharge, and the yin, yang rotor also is compressed the active force of gas simultaneously, the negative and positive rotor receive axially and radial effect power adopt cod and radial bearing to overcome respectively.
Summary of the invention
The purpose of the utility model patent is uneven to the male rotor radial force of existing double-screw compressor, has only a compression process to cause the not high problem of efficient in the rotor rotation process, designs a kind of three helical-lobe compressors.
Technological scheme of the present invention is:
A kind of three helical-lobe compressors; Comprise casing 1 and a spirality male rotor 2; The two ends of spirality male rotor 2 are bearing in the main bearing respectively; Main bearing is installed in the main bearing seat 3 that is arranged on the casing 1; One end of spirality male rotor 2 links to each other with drive unit, and the bilateral symmetry that it is characterized in that described spirality male rotor 2 is furnished with two spirality female rotors 4 with its engagement, and the two supports of each spirality female rotor 4 is in supplementary bearing separately; Each supplementary bearing is installed in the countershaft bearing 5 that is arranged on the casing 1; Form the compression chamber that two centers are symmetrical in spirality male rotor 2 axis simultaneously between a described spirality male rotor 2 and two spirality female rotors 4 and the casing 1, casing is provided with gas-entered passageway and exhaust passage, and gas-entered passageway and exhaust passage are formed centrally the center symmetric arrangement in spirality male rotor 2 axis being.
In order to reach male rotor radial force complete equilibrium purpose; The number of teeth of spirality male rotor 2 and spirality female rotor 4 should be 2 common multiple; For the suction air cavity of reasonable Arrangement compressor, the number of teeth of spirality male rotor 2 should be greater than the number of teeth of spirality female rotor 4.
The beneficial effect of the utility model:
1, two compression chambers.Male rotor is divided into two-part zone up and down by two female rotors; Each zone is combined into a compression chamber with a female rotor; Therefore three screw rotors have two compression chambers, and two compression chamber work are arranged in the rotor rotation process always, and displacement increase and flow are more steady.
2, improve the male rotor stressing conditions.The negative and positive rotor of existing double-screw structure all bears thrust load and radial load, and three screw rods can be found out on structural type, and male rotor is because placed in the middle; Two female rotor symmetric arrangement; Balance the radial load of male rotor, so male rotor does not almost have radial load, have only thrust load.With respect to the oil spout double-screw structure, the male rotor stressing conditions improves greatly, the bearing longer service life, and reliability improves.
3, efficient improves.Participate in compression owing to increased female rotor, Duo a compression chamber than the twin-screw injected compressor, air displacement increase under the same rotational speed situation, its efficient improves greatly.
4, structure is different.Many roots rotors and casing have together constituted at least two compression processes, so head has many gas-entered passageways, and many exhaust passages, and gas-entered passageway and exhaust passage are formed centrally the center symmetric arrangement in male rotor being.
5, cost reduces.With respect to the oil spout double-screw structure, oil spout three helical-lobe compressor major parts have only increased female rotor and self-contained bearing and fuselage, the change of bearing support foundry goods, and the head cost slightly increases, and input-output ratio is high, has good economic benefits.
Description of drawings
Fig. 1 is the structural representation of the screw portion of existing oil spout double-screw compressor.
Wherein Fig. 1 (a) is a plan view, and Fig. 1 (b) is the radial cross-section of screw rod among Fig. 1 (a).
Fig. 2 is the structural representation of screw portion of oil spout three helical-lobe compressors of the utility model.
Wherein Fig. 2 (a) is a plan view, and Fig. 2 (b) is the radial cross-section of screw rod among Fig. 2 (a).
Fig. 3 is a positive screw rod and two perspective view that female screw meshes of three helical-lobe compressors of embodiments of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Like Fig. 2, shown in 3.
A kind of three helical-lobe compressors; Comprise casing 1 and a spirality male rotor 2; The two ends of spirality male rotor 2 are bearing in respectively in the main bearing, and main bearing is installed in the main bearing seat 3 that is arranged on the casing 1, and an end of spirality male rotor 2 links to each other with drive unit; The left and right sides symmetric arrangement of a described spirality male rotor 2 has two spirality female rotors 4 with its engagement; The two supports of each spirality female rotor 4 is in supplementary bearing separately, and each supplementary bearing is installed in the countershaft bearing 5 that is arranged on the casing 1, forms two compression chambers that are symmetrical in spirality male rotor 2 simultaneously between a described spirality male rotor 2 and two spirality female rotors 4 and the casing 1; Casing is provided with gas-entered passageway and exhaust passage, and gas-entered passageway and exhaust passage are formed centrally the center symmetric arrangement in spirality male rotor 2 being.Spirality male rotor 2 and two female rotors 4 pass through bearing fixing in the cavity of fuselage and bearing support formation among Fig. 2, and 2 spirality female rotors 4 are with spirality male rotor 2 central horizontal symmetric arrangement.Constantly rotate through rotor, in the cavity that rotor recesses forms, accomplish the process of air-breathing, compression, exhaust, its intakeport, relief opening have 2, and compression process also has 2.Relative oil spout double-screw compressor, the efficient of oil spout three helical-lobe compressors improves greatly, and the stressing conditions of male rotor is greatly improved, and reliability greatly improves.
Oil spout three helical-lobe compressors have then had more an identical female rotor than oil spout double-screw compressor, form the form of two female rotors of a male rotor drive.Its structure is that male rotor is placed in the middle, and two female rotor symmetry horizontal distribution are in the male rotor both sides, and its stereochemical structure is seen Fig. 3.During practical implementation in order to reach male rotor radial force complete equilibrium purpose; The number of teeth of spirality male rotor 2 and spirality female rotor 4 should be 2 common multiple; Suction air cavity for the reasonable Arrangement compressor; The number of teeth of spirality male rotor 2 should be greater than the number of teeth of spirality female rotor 4, is 8 like the number of teeth of male rotor, and the number of teeth of female rotor then is 6.
The utility model does not relate to all identical with the existing technology existing technology that maybe can adopt of part to be realized.
Claims (2)
1. oil spout three helical-lobe compressors; Comprise a casing (1) and a spirality male rotor (2); The two ends of spirality male rotor (2) are bearing in the main bearing respectively; Main bearing is installed in the main bearing seat (3) that is arranged on the casing (1); One end of spirality male rotor (2) links to each other with drive unit, it is characterized in that described spirality male rotor (2) around symmetric arrangement two spirality female rotors (4) with its engagement are arranged, the two supports of each spirality female rotor (4) is in supplementary bearing separately; Each supplementary bearing is installed in the countershaft bearing (5) that is arranged on the casing (1); Form two compression chambers that are symmetrical in spirality male rotor (2) simultaneously between a described spirality male rotor (2) and spirality female rotor (4) and the casing (1), casing is provided with gas-entered passageway and the exhaust passage that equates with spirality female rotor quantity, and gas-entered passageway and exhaust passage are formed centrally the center symmetric arrangement in spirality male rotor (2) being.
2. oil spout three helical-lobe compressors according to claim 1; The number of teeth that it is characterized in that described spirality male rotor (2) and spirality female rotor (4) is 2 common multiple, and the number of teeth of spirality male rotor (2) is greater than the number of teeth of spirality female rotor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120463943XU CN202360394U (en) | 2011-11-21 | 2011-11-21 | Oil injection compressor with three screw stems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120463943XU CN202360394U (en) | 2011-11-21 | 2011-11-21 | Oil injection compressor with three screw stems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360394U true CN202360394U (en) | 2012-08-01 |
Family
ID=46571584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120463943XU Expired - Fee Related CN202360394U (en) | 2011-11-21 | 2011-11-21 | Oil injection compressor with three screw stems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360394U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240053A (en) * | 2015-11-04 | 2016-01-13 | 江西宝象科技有限公司 | Screw expander |
| CN107701443A (en) * | 2017-10-30 | 2018-02-16 | 上海罡佩压缩机有限公司 | A kind of semiclosed positive displacement Spiral Lobe Refrigeration Compressor of three screw rods composition |
| CN109812297A (en) * | 2019-01-21 | 2019-05-28 | 五邑大学 | A kind of three screw expanders |
| CN109944641A (en) * | 2019-04-01 | 2019-06-28 | 五邑大学 | A kind of four screw expanders |
| US11725658B2 (en) | 2016-08-02 | 2023-08-15 | Johnson Controls Air Conditioning And Refrigeration (Wuxi) Co., Ltd. | Screw compressor with male and female rotors |
-
2011
- 2011-11-21 CN CN201120463943XU patent/CN202360394U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240053A (en) * | 2015-11-04 | 2016-01-13 | 江西宝象科技有限公司 | Screw expander |
| US11725658B2 (en) | 2016-08-02 | 2023-08-15 | Johnson Controls Air Conditioning And Refrigeration (Wuxi) Co., Ltd. | Screw compressor with male and female rotors |
| CN107701443A (en) * | 2017-10-30 | 2018-02-16 | 上海罡佩压缩机有限公司 | A kind of semiclosed positive displacement Spiral Lobe Refrigeration Compressor of three screw rods composition |
| CN109812297A (en) * | 2019-01-21 | 2019-05-28 | 五邑大学 | A kind of three screw expanders |
| CN109944641A (en) * | 2019-04-01 | 2019-06-28 | 五邑大学 | A kind of four screw expanders |
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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: 20120801 Termination date: 20161121 |