CN102734159A - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN102734159A CN102734159A CN201210263413XA CN201210263413A CN102734159A CN 102734159 A CN102734159 A CN 102734159A CN 201210263413X A CN201210263413X A CN 201210263413XA CN 201210263413 A CN201210263413 A CN 201210263413A CN 102734159 A CN102734159 A CN 102734159A
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- Prior art keywords
- screw rotor
- bearing
- axle sleeve
- helical
- lobe compressor
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- 238000005057 refrigeration Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical class OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a screw compressor (100) comprising a shell (10), a motor (20) accommodated in the shell, a driving screw rotor (30), a driven screw rotor (40) and an oil-gas separator (50), wherein the driving screw rotor (30) and the driven screw rotor (40) are accommodated in a first accommodating cavity (101) and a second accommodating cavity (102) of the shell (10); the outer side of the driven screw rotor (40) is also provided with a negative oil jacket (410); and the outer side of a second main shaft (302) is also provided with a positive oil leakage jacket (311). Through the structure, the fluencies of the driving screw rotor and the driven screw rotor in the pivoting process can be improved, the refrigeration effect of the screw compressor is improved, and the service life of the screw compressor is prolonged.
Description
Technical field
The present invention relates to mechanical field, relate in particular to a kind of employed a kind of helical-lobe compressor in the chiller plant that is applied to.
Background technique
Compressor is absolutely necessary in refrigeration system.The compressor that is widely used at present mainly contains piston type, screw type, centrifugal etc.
Spiral Lobe Refrigeration Compressor all adopts initiatively screw rotor rotation of motor driving; And drive driven screw rotor through the active screw rotor; Screw rotor is divided into initiatively screw rotor and driven screw rotor, and it intermeshes through both, rotor outer ring and shell.When the working rotor of engagement to when rotation, rotor changes to the volume between teeth groove and between the housing, thereby realizes suction, compression and the eliminating of gas, accomplishes continuous gas compression and circulates.
Yet, in the prior art, after the active screw rotor of helical-lobe compressor and driven screw rotor are installed to compressor inside, generally all be to come this active screw rotor of fixing and driven screw rotor through several bearings.But existing bearing is because problems such as its design accuracy or fault in material generally exist the certain precision error.And during the work of refrigeration compressor, its initiatively the rotating speed of screw rotor and driven screw rotor up to 2980rpm/min.Therefore, in high speed pivot process, the error on this precision, it is smooth to cause active screw rotor and driven screw rotor to pivot, thereby causes the refrigeration of helical-lobe compressor not good, and working life is than defectives such as weak points.
In view of this, be necessary helical-lobe compressor of the prior art is improved, to address the above problem.
Summary of the invention
The object of the present invention is to provide a kind of helical-lobe compressor, it can improve initiatively screw rotor and the fluency of driven screw rotor in its pivot process, improves the refrigeration of helical-lobe compressor, prolongs the working life of helical-lobe compressor.
For realizing the foregoing invention purpose, the present invention provides a kind of helical-lobe compressor, comprises
Housing and
The motor of being accommodated by said housing, initiatively screw rotor, driven screw rotor, deaerator; Said active screw rotor and driven screw rotor are accommodated by first host cavity of housing and second host cavity; One end of said first host cavity is provided with two bearings, and first main shaft that links to each other with said motor in the said active screw rotor is by said bearing institute fixing; The other end of said first host cavity is provided with four bearings, and second main shaft that joins with said deaerator in the said active screw rotor is by said bearing institute fixing; One end of said second host cavity is provided with a bearing, and the 3rd main shaft that links to each other with said motor in the said driven screw rotor is by said bearing institute fixing; The other end of said second host cavity is provided with four bearings, and the four main that joins with said deaerator in the said driven screw rotor is by said bearing institute fixing; The 3rd main shaft outside of said driven screw rotor also is provided with a cloudy oil jacket; Said second main shaft outside also is provided with a sun and gets rid of oil jacket.
As further improvement of the present invention, the said four main outside also is provided with a cloudy axle sleeve.
As further improvement of the present invention, said first main shaft outside also is provided with a positive axle sleeve.
As further improvement of the present invention, said cloudy axle sleeve comprises cloudy external axle sleeve and cloudy internal axle sleeve.
As further improvement of the present invention, said positive axle sleeve comprises positive external axle sleeve and positive internal axle sleeve.
As further improvement of the present invention, the bearing that is provided with between said cloudy axle sleeve and the driven screw rotor is a double roller bearing.
As further improvement of the present invention, getting rid of the adjacent bearing of oil jacket with said sun is single roller bearing.
As further improvement of the present invention: said the 3rd bearing and clutch shaft bearing are single roller bearing.
Compared with prior art; The invention has the beneficial effects as follows: at the arranged outside one cloudy oil jacket of this driven screw rotor; And get rid of oil jacket at this second main shaft arranged outside, one sun, through such structure, can improve initiatively screw rotor and the fluency of driven screw rotor in its pivot process; Improve the refrigeration of helical-lobe compressor, prolonged the working life of helical-lobe compressor.
Description of drawings
Fig. 1 is the sectional view in the embodiment of a kind of helical-lobe compressor of the present invention;
Fig. 2 is installed in the sectional view behind the helical-lobe compressor for active screw rotor, the driven screw rotor described in Fig. 1.
Embodiment
Below in conjunction with each mode of execution shown in the drawings the present invention is elaborated; But should be noted that; These mode of executions are not limitation of the present invention; The function that those of ordinary skills do according to these mode of executions, method, or structural equivalent transformation or substitute all belong within protection scope of the present invention.
Please join Fig. 1 and shown in Figure 2, Fig. 1 is the sectional view in the embodiment of a kind of helical-lobe compressor of the present invention.In this mode of execution; A kind of helical-lobe compressor 100; Comprise housing 10 and the motor 20 of being accommodated by said housing, active screw rotor 30, driven screw rotor 40, deaerator 50, said active screw rotor 30 is accommodated cavity with driven screw rotor 40 by first host cavity 101 of housing 10 and second host cavity 102.
In this mode of execution, an end of said first host cavity 101 is provided with two clutch shaft bearings 110, and first main shaft 301 that links to each other with said motor 20 in the said active screw rotor 20 is by 110 fixings of said clutch shaft bearing.The other end of first host cavity 101 is provided with four second bearings 111, and second main shaft 302 that joins with said deaerator 50 in the said active screw rotor 20 is by 111 fixings of said second bearing.One end of second host cavity 102 is provided with one the 3rd bearing 112, and the 3rd main shaft 401 that links to each other with said motor 20 in the said driven screw rotor 40 is by 112 fixings of said the 3rd bearing.The other end of second host cavity 102 is provided with four the 4th bearings 113, and the four main 402 that joins with said deaerator 50 in the said driven screw rotor 40 is by 113 fixings of said the 4th bearing.The outside of this first main shaft 301 also can comprise two positive oil jackets 312, is used for fixing first main shaft 301.
In this mode of execution, the 3rd main shaft 401 outsides of this driven screw rotor 40 also are provided with a cloudy oil jacket 410, and said second main shaft 302 outsides also are provided with a sun and get rid of oil jacket 311.Four main 402 outsides also are provided with a cloudy axle sleeve 411, and this moon axle sleeve 411 comprises cloudy external axle sleeve 4111 and cloudy internal axle sleeve 4112.First main shaft, 301 outsides also are provided with a positive axle sleeve 310, and this sun axle sleeve 310 comprises positive external axle sleeve 3101 and positive internal axle sleeve 3102.
Shown in Figure 1 in conjunction with reference; In this mode of execution; Initiatively screw rotor 30 is driven by motor 20, and drives driven screw rotor 40, thereby realizes that initiatively screw rotor 30 pivots at a high speed at first host cavity 101 and second host cavity, 102 inner works with driven screw rotor 40.
In this mode of execution, the bearing 1132 that is provided with between this moon axle sleeve 411 and the driven screw rotor 40 is a double roller bearing, and with bearing radial force, and other three bearings 1131 are angular contact ball bearing, to bear bigger axial force.Simultaneously, get rid of oil jacket 311 adjacent bearings 1111 with sun and be single roller bearing, with bearing radial force, and other three bearings 1110 are angular contact ball bearing, to bear bigger axial force.At last, the 3rd bearing 112 and two clutch shaft bearings 110 are single roller bearing, with bearing radial force.
The listed a series of detailed description of preceding text only is specifying to feasibility mode of execution of the present invention; They are not in order to restriction protection scope of the present invention, allly do not break away from equivalent mode of execution or the change that skill of the present invention spirit done and all should be included within protection scope of the present invention.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the present invention.Should any reference character in the claim be regarded as limit related claim.
In addition; Describing according to mode of execution though should be appreciated that this specification, is not that each mode of execution only comprises an independently technological scheme; This narrating mode of specification only is for clarity sake; Those skilled in the art should make specification as a whole, and the technological scheme among each embodiment also can form other mode of executions that it will be appreciated by those skilled in the art that through appropriate combination.
Claims (8)
1. a helical-lobe compressor (100) comprises
Housing (10) and
The motor (20) of being accommodated by said housing, initiatively screw rotor (30), driven screw rotor (40), deaerator (50); Said active screw rotor (30) is accommodated by first host cavity (101) of housing (10) and second host cavity (102) with driven screw rotor (40)
It is characterized in that: an end of said first host cavity (101) is provided with two clutch shaft bearings (110), and first main shaft (301) that links to each other with said motor (20) in the said active screw rotor (30) is by said clutch shaft bearing (110) institute fixing; The other end of said first host cavity (101) is provided with four second bearings (111), and second main shaft (302) that joins with said deaerator (50) in the said active screw rotor (30) is by said second bearing (111) institute fixing; One end of said second host cavity (102) is provided with one the 3rd bearing (112), and the 3rd main shaft (401) that links to each other with said motor (20) in the said driven screw rotor (40) is by said the 3rd bearing (112) institute fixing; The other end of said second host cavity (102) is provided with four the 4th bearings (113), and the four main (402) that joins with said deaerator (50) in the said driven screw rotor (40) is by said the 4th bearing (113) institute fixing; The 3rd main shaft (401) outside of said driven screw rotor (40) also is provided with a cloudy oil jacket (410); Said second main shaft (302) outside also is provided with a sun and gets rid of oil jacket (311).
2. helical-lobe compressor according to claim 1 (100) is characterized in that: said four main (402) outside also is provided with a cloudy axle sleeve (411).
3. helical-lobe compressor according to claim 1 (100) is characterized in that: said first main shaft (301) outside also is provided with a positive axle sleeve (310).
4. helical-lobe compressor according to claim 2 (100) is characterized in that: said cloudy axle sleeve (411) comprises cloudy external axle sleeve (4111) and cloudy internal axle sleeve (4112).
5. helical-lobe compressor according to claim 3 (100) is characterized in that: said positive axle sleeve (310) comprises positive external axle sleeve (3101) and positive internal axle sleeve (3102).
6. helical-lobe compressor according to claim 1 (100) is characterized in that: the bearing (1132) that is provided with between said cloudy axle sleeve (411) and the driven screw rotor (40) is a double roller bearing.
7. helical-lobe compressor according to claim 1 (100) is characterized in that: getting rid of the adjacent bearing (1111) of oil jacket (311) with said sun is single roller bearing.
8. helical-lobe compressor according to claim 1 (100) is characterized in that: said the 3rd bearing (112) and clutch shaft bearing (110) are single roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210263413XA CN102734159A (en) | 2012-04-11 | 2012-07-27 | Screw compressor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104750.4 | 2012-04-11 | ||
| CN201210104750 | 2012-04-11 | ||
| CN201210263413XA CN102734159A (en) | 2012-04-11 | 2012-07-27 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734159A true CN102734159A (en) | 2012-10-17 |
Family
ID=46990260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210263413XA Pending CN102734159A (en) | 2012-04-11 | 2012-07-27 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734159A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63227983A (en) * | 1987-03-18 | 1988-09-22 | Hitachi Ltd | screw compressor |
| JPH10288175A (en) * | 1997-04-10 | 1998-10-27 | Kobe Steel Ltd | Oil-cooled screw compressor |
| CN1512065A (en) * | 1998-09-17 | 2004-07-14 | ������������ʽ���� | Oil-free screw compressor |
| CN2718270Y (en) * | 2004-07-26 | 2005-08-17 | 西安交通大学 | Dry type high-speed helical-lobe air compressor |
| US20070163840A1 (en) * | 2004-08-03 | 2007-07-19 | Mayekawa Mfg. Co., Ltd. | Lubricant supply system and operating method of multisystem lubrication screw compressor |
| JP2007211639A (en) * | 2006-02-08 | 2007-08-23 | Hitachi Industrial Equipment Systems Co Ltd | Oil-free screw compressor |
| CN101846075A (en) * | 2009-03-25 | 2010-09-29 | 日立空调·家用电器株式会社 | screw compressor |
| CN201827074U (en) * | 2010-07-27 | 2011-05-11 | 苏州通润驱动设备股份有限公司 | Twin-screw air compressor |
| JP2011236823A (en) * | 2010-05-11 | 2011-11-24 | Mitsubishi Electric Corp | Screw compressor |
| CN202756243U (en) * | 2012-04-11 | 2013-02-27 | 无锡市制冷设备厂有限责任公司 | Screw compressor |
-
2012
- 2012-07-27 CN CN201210263413XA patent/CN102734159A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63227983A (en) * | 1987-03-18 | 1988-09-22 | Hitachi Ltd | screw compressor |
| JPH10288175A (en) * | 1997-04-10 | 1998-10-27 | Kobe Steel Ltd | Oil-cooled screw compressor |
| CN1512065A (en) * | 1998-09-17 | 2004-07-14 | ������������ʽ���� | Oil-free screw compressor |
| CN2718270Y (en) * | 2004-07-26 | 2005-08-17 | 西安交通大学 | Dry type high-speed helical-lobe air compressor |
| US20070163840A1 (en) * | 2004-08-03 | 2007-07-19 | Mayekawa Mfg. Co., Ltd. | Lubricant supply system and operating method of multisystem lubrication screw compressor |
| JP2007211639A (en) * | 2006-02-08 | 2007-08-23 | Hitachi Industrial Equipment Systems Co Ltd | Oil-free screw compressor |
| CN101846075A (en) * | 2009-03-25 | 2010-09-29 | 日立空调·家用电器株式会社 | screw compressor |
| US20100247366A1 (en) * | 2009-03-25 | 2010-09-30 | Hitachi Appliances, Inc. | Screw compressor |
| JP2011236823A (en) * | 2010-05-11 | 2011-11-24 | Mitsubishi Electric Corp | Screw compressor |
| CN201827074U (en) * | 2010-07-27 | 2011-05-11 | 苏州通润驱动设备股份有限公司 | Twin-screw air compressor |
| CN202756243U (en) * | 2012-04-11 | 2013-02-27 | 无锡市制冷设备厂有限责任公司 | Screw compressor |
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Application publication date: 20121017 |