CN102588280A - Screw compressor - Google Patents
Screw compressor Download PDFInfo
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- CN102588280A CN102588280A CN2011100074995A CN201110007499A CN102588280A CN 102588280 A CN102588280 A CN 102588280A CN 2011100074995 A CN2011100074995 A CN 2011100074995A CN 201110007499 A CN201110007499 A CN 201110007499A CN 102588280 A CN102588280 A CN 102588280A
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- guiding valve
- screw compressor
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Abstract
The invention relates to a screw compressor. The screw compressor comprises a compressor body, a male and female rotor pair, a sliding valve and a bearing pedestal, wherein a sliding valve chamber and a rotor chamber are arranged in the compressor body; the male and female rotor pair can operate in the rotor chamber; the sliding valve slides in/out of the sliding chamber, so that the compression volume of the screw compressor can be adjusted; the bearing pedestal comprises a rotor bearing chamber and a sliding valve bearing chamber; the rotor bearing chamber is arranged in the bearing pedestal to accommodate the male and female rotary pair; the sliding valve bearing chamber is arranged in the bearing pedestal; and a first supporting structure and a second supporting structure are formed in the sliding valve bearing chamber. When the screw compressor operates and slides the sliding valve from the sliding valve chamber to the sliding valve bearing chamber; and the sliding valve is wrapped by the first supporting structure and the second supporting structure, so that the sliding valve does not shake up and down and collide the male and female rotor pair or the sliding valve chamber, and shock and abnormal noise generated during the operation of the screw compressor can be effectively reduced.
Description
Technical field
The present invention relates to a kind of screw compressor, relate in particular to the structure of this screw compressor.
Background technique
At present screw compressor is applied among air-conditioning equipment, the refrigeration system widely, and it mainly is the seal space that sees through between a pair of public mother rotor, in operation process, dwindles gradually and reaches the effect of compression; In addition, have a volume adjusting means among the screw compressor, can change the refrigerating capacity of screw compressor by this volume adjusting means.
See also Fig. 1 and Fig. 2, be the three-dimensional structure diagram and the side sectional view of the screw compressor of existing technology, screw compressor 1 ' comprising: a housing 11 ', a guiding valve 12 ', one public mother rotor to 13 ', an and bearing support 14 '.This housing 11 ' inside has a rotor chamber 111 ' and a valve chamber 112 ', this rotor chamber 111 ' be in order to ccontaining should the public affairs mother rotor to 13 ', and this valve chamber 112 ' is in order to ccontaining this guiding valve 12 '.As among Fig. 2 with the part of dotted lines; This bearing support 14 ' has a sleeve actuator chamber 141 ' and a rotor bearing chamber 142 '; By the depth that slips into this sleeve actuator chamber 141 ' among the housing 11 ', can adjust the volume of screw compressor 1 ' through guiding valve 12 '.
Above-mentioned screw compressor 1 ' has a significant deficiency; Promptly slip in this sleeve actuator chamber 141 ' by this valve chamber 112 ' when this guiding valve 12 ',, and cause the guiding valve 12 ' and the bump of valve chamber 112 ' to rub because guiding valve 12 ' and this public affairs mother rotor be to pressure difference and pressure oscillation between 13 '; More serious; To cause the public mother rotor of guiding valve 12 ' bump to 13 ', thereby cause screw compressor 1 ' in running, strenuous vibration and the noise that sends instability will often take place.
Therefore; In order to solve the significant deficiency that above-mentioned screw compressor 1 ' is had, among the patent No. M357520 of Taiwan, disclosed a kind of screw compressor of improvement; See also Fig. 3 and Fig. 4; How to improve the three-dimensional structure diagram of the bearing support of screw compressor for the three-dimensional structure diagram of housing of improvement screw compressor, the screw compressor 1a of this improvement comprises: a housing 11a, a bearing support 12a, a public mother rotor to 13a, reach a guiding valve 14a.This housing 11a inside be provided with a rotor chamber 111a and a valve chamber 112a with respectively ccontaining should the public affairs mother rotor to 13a and this guiding valve 14a, and, be positioned at one of the housing 11a surperficial 113a of exhaust end of this valve chamber 112a opening, be to be provided with a supporting frame 15a.This bearing support 12a inside is provided with a rotor bearing chamber 121a and a sleeve actuator chamber 122a; The opening of this sleeve actuator chamber 122a; Its profile is to be made up of a upper arc edge 1221a and a side half arc edge 1222a, and is provided with a cup 123a and a back chamber 124a (not showing back chamber 124a among the 4th figure), and is provided with chamber, front and back opening 125a between this cup 123a and this chamber, back 124a; In addition; Cup 123a is at its opening, and enters end surfaces 126a near one of bearing support 12a, forms a support block 1231a.When guiding valve 14a is slipped into by valve chamber 112a in the 122a of sleeve actuator chamber, this support block 1231a can support guiding valve 14a, receives the influence to the pressure difference between the 13a of itself and public mother rotor with buffering guiding valve 14a; And down bump friction, in addition, this supporting frame 15a also can be in the compressor operation; Supplemental support is with upwards bump friction of buffering guiding valve 14a; Therefore, through the effect of support block 1231a and supporting frame 15a, and alleviate vibrations and the noise that is produced in the compressor operation.
The design of above-mentioned screw compressor that should improvement be to alleviate vibrations and the noise that is produced in the compressor operation, yet it still has shortcoming and deficiency on some mechanism design:
The first, though this this guiding valve of support block available buffer down clashes into friction, yet; Support block only is formed near the opening of this cup and can't supports whole guiding valve fully; Therefore, when guiding valve gos deep in this sleeve actuator chamber, support block is to support the guiding valve that is positioned at the sleeve actuator chamber interior; Make guiding valve down clash into the phenomenon of friction, still can take place.
The second, though this this guiding valve of supporting frame available buffer up clashes into friction, yet supporting frame is for guiding valve; Be to belong to thin part, therefore, when compressor operation, guiding valve constantly up clashes into the friction supporting frame; Get off for a long time, supporting frame possibly damage, and in addition, belong to the supporting frame of thin part; It make to be difficult for, and, supporting frame is locked in this exhaust end surface of valve chamber opening, the number of assembling steps of screw compressor that more should improvement is complicated.
Therefore, the claimant is because the screw compressor of above-mentioned this improvement still has shortcoming with not enough, so do one's utmost in addition study and composition, researches and develops a kind of screw compressor with structure-improved of completion the present invention finally.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of screw compressor, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention realizes through following technological scheme:
The present invention includes: a compressor main body; Described compressor main body inside is provided with a valve chamber and a rotor chamber, and this valve chamber and this rotor chamber all opening towards one of compressor main body rotor exhaust end surface; One public mother rotor is right; Described public mother rotor is to being to be placed within the rotor chamber and can in rotor chamber 112, to turn round; One guiding valve; Described guiding valve is placed within the valve chamber, sees through this guiding valve to be slipped into/skids off in valve chamber, the minimum cylinder volume of can regulate screw compressor; An and bearing support; Described bearing support combines with compressor main body with respect to this rotor exhaust end surface with one of which bearing end surfaces, this bearing support can be ccontaining should the public affairs mother rotor pair and guiding valve; Described bearing support comprises: a rotor bearing chamber; Described rotor bearing chamber is arranged at bearing support 14 inside, and this rotor bearing chamber is right in order to ccontaining public mother rotor; An and guiding valve compartment; Described guiding valve compartment is to be arranged at bearing support inside, and this guiding valve compartment is in order to ccontaining guiding valve; Be provided with one first supporting structure and one second supporting structure within the guiding valve compartment; Slipped in the guiding valve compartment by valve chamber when screw compressor running and with guiding valve, guiding valve is promptly coated by this first supporting structure and this second supporting structure.
Compared with prior art, the invention has the beneficial effects as follows: make screw compressor when running, guiding valve not up and down shock impacts with produce abnormal sound, to prolong the working life of screw compressor further.
Description of drawings
Fig. 1 is a kind of three-dimensional structure diagram of screw compressor of existing technology;
Fig. 2 is the side sectional view of Fig. 1;
Fig. 3 is the three-dimensional structure diagram of one of the another kind of improvement of existing technology screw compressor housing;
Fig. 4 is the three-dimensional structure diagram of the bearing support of Fig. 3;
Fig. 5 is a three-dimensional exploded view of the present invention;
Fig. 6 is Fig. 5 bearing support three-dimensional structure diagram;
Fig. 7 is the bearing support rear view of Fig. 5.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
The invention reside in provides a kind of screw compressor of improvement body; It is provided with one first supporting structure and one second supporting structure within a guiding valve compartment; When a guiding valve slips in this guiding valve compartment, this first supporting structure capable of using and this second supporting structure coat guiding valve it being confined within the guiding valve compartment, when making the screw compressor running; Guiding valve not up and down shock impacts with produce abnormal sound, to prolong the working life of screw compressor further.
Therefore, in order to reach above-mentioned purpose, the present invention includes: a compressor main body, its inside are provided with a valve chamber and a rotor chamber; One public mother rotor is right, is to be placed within this rotor chamber and can in rotor chamber, to turn round; One guiding valve is to be placed within this valve chamber, sees through this guiding valve to be slipped into/skids off in valve chamber, the minimum cylinder volume of can regulate screw compressor; An and bearing support; Be surperficial with respect to one of this compressor main body rotor exhaust end, and combine with compressor main body with one of which bearing end surfaces, this bearing support can be ccontaining should the public affairs mother rotor pair and guiding valve; Bearing support comprises: a rotor bearing chamber is that to be arranged at bearing support inside right with ccontaining public mother rotor; An and guiding valve compartment; Be to be arranged at bearing support inside; Be provided with one first supporting structure and one second supporting structure within this guiding valve compartment, slipped in the guiding valve compartment by valve chamber when screw compressor running and with guiding valve, guiding valve is promptly coated by first supporting structure and second supporting structure; Make guiding valve can not shake up and down and clash into public mother rotor to or valve chamber, and can reduce vibrations and the abnormal sound that the screw compressor running time is produced effectively.
Please consult Fig. 5 and Fig. 6 (being a kind of three-dimensional exploded view with screw compressor of structure-improved, with the bearing support three-dimensional structure diagram of the screw compressor with structure-improved) simultaneously: a kind of screw compressor 1 with structure-improved comprises:
One compressor main body 11, its inside are provided with a valve chamber 111 and a rotor chamber 112, and this valve chamber 111 and this rotor chamber 112 all opening towards one of compressor main body 11 rotor exhaust end surface 113;
One public mother rotor is to 12, is to be placed within this rotor chamber 112 and can in rotor chamber 112, to turn round;
One guiding valve 13 is to be placed within this valve chamber 111, sees through this guiding valve 13 to be slipped into/skids off in valve chamber 111, the minimum cylinder volume of can regulate screw compressor; And
One bearing support 14; Be to combine with compressor main body 11 with respect to this rotor exhaust end surface 113 with one of which bearing end surfaces 141; This bearing support 14 can be ccontaining should the public affairs mother rotor to 12 with this guiding valve 13; Bearing support 14 comprises: a rotor bearing chamber 142 and a guiding valve compartment 143, this rotor bearing chamber 142 are to be arranged at bearing support 14 inside, be can ccontaining public mother rotor to 12; This guiding valve compartment 143 is to be arranged at bearing support 14 inside; Guiding valve compartment 143 can ccontaining guiding valve 13, and its inside is provided with one first supporting structure 1431 and one second supporting structure 1432, is slipped in the guiding valve compartment 143 by this valve chamber 111 when the screw compressor running and with guiding valve 13; Guiding valve 13 is promptly coated by first supporting structure 1431 and second supporting structure 1432; Therefore, in the screw compressor running, guiding valve 13 can be because of unsettled too much and tempestuously vibrations; Cause valve chamber 111 to produce undesired wearing and tearing, so can reduce vibrations and the abnormal sound that is produced when screw compressor turns round effectively.
Please consult Fig. 6 and Fig. 7 simultaneously, wherein, Fig. 7 is a bearing support view afterwards; In the present embodiment, because the surface that this first supporting structure 1431 coats this guiding valve 13 is a cambered surface, the surface that this second supporting structure 1432 coats guiding valve 13 is a curved surface; And first supporting structure 1431 and second supporting structure 1432 are to extend whole this guiding valve compartment 143; Therefore, no matter guiding valve 13 slips into dark or shallow in this guiding valve compartment 143, first supporting structure 1431 and second supporting structure 1432 can coat guiding valve 13; Can be when screw compressor turns round; Alleviate the situation of guiding valve 13 strenuous vibrations, the vibrations that produced in the time of therefore can reducing the screw compressor running effectively and the phenomenon of abnormal sound, and can prolong working life of screw compressor.
In addition; State on the implementation in this screw compressor with structure-improved 1; This first supporting structure 1431 can be made into this second supporting structure 1432 one-body moldedly has one of circular surface the 3rd supporting structure; Likewise, the 3rd supporting structure can provide and first supporting structure 1431 and the identical function of second supporting structure 1432.
Above-mentioned complete and clearly disclosed the present invention this have the screw compressor of structure-improved; Above-mentioned detailed description is to the specifying of possible embodiments of the present invention, but this embodiment is not in order to limiting claim of the present invention, all do not break away from the present invention institute for it equivalence implement or change, all should be included in the claim scope of the present invention.
Claims (4)
1. a screw compressor comprises: a compressor main body; It is characterized in that: described compressor main body inside is provided with a valve chamber and a rotor chamber, and this valve chamber and this rotor chamber all opening towards one of compressor main body rotor exhaust end surface; One public mother rotor is right; Described public mother rotor is to being to be placed within the rotor chamber and can in rotor chamber 112, to turn round; One guiding valve; Described guiding valve is placed within the valve chamber, sees through this guiding valve to be slipped into/skids off in valve chamber, the minimum cylinder volume of can regulate screw compressor; An and bearing support; Described bearing support combines with compressor main body with respect to this rotor exhaust end surface with one of which bearing end surfaces, this bearing support can be ccontaining should the public affairs mother rotor pair and guiding valve; Described bearing support comprises: a rotor bearing chamber; Described rotor bearing chamber is arranged at bearing support 14 inside, and this rotor bearing chamber is right in order to ccontaining public mother rotor; An and guiding valve compartment; Described guiding valve compartment is to be arranged at bearing support inside, and this guiding valve compartment is in order to ccontaining guiding valve; Be provided with one first supporting structure and one second supporting structure within the guiding valve compartment; Slipped in the guiding valve compartment by valve chamber when screw compressor running and with guiding valve, guiding valve is promptly coated by this first supporting structure and this second supporting structure.
2. screw compressor according to claim 1 is characterized in that: the surface that this first supporting structure coats this guiding valve is a cambered surface.
3. screw compressor according to claim 1 is characterized in that: the surface that this second supporting structure coats this guiding valve is a curved surface.
4. screw compressor according to claim 1 is characterized in that: this first supporting structure and this second supporting structure can be made one-body moldedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100074995A CN102588280A (en) | 2011-01-14 | 2011-01-14 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100074995A CN102588280A (en) | 2011-01-14 | 2011-01-14 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102588280A true CN102588280A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100074995A Pending CN102588280A (en) | 2011-01-14 | 2011-01-14 | Screw compressor |
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| CN (1) | CN102588280A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089721A (en) * | 2016-08-11 | 2016-11-09 | 成都陵川常友汽车部件制造有限公司 | The quality inspection system of engine noise reduction element |
| CN106164490A (en) * | 2014-04-18 | 2016-11-23 | 江森自控日立空调技术（香港）有限公司 | Helical-lobe compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS639694A (en) * | 1986-07-01 | 1988-01-16 | Hitachi Ltd | Screw compressor |
| CN2617958Y (en) * | 2003-03-28 | 2004-05-26 | 大连冷冻机股份有限公司 | Slide valve bracket of screw compressor |
| CN101514702A (en) * | 2009-03-23 | 2009-08-26 | 上海汉钟精机股份有限公司 | Screw compressor |
| CN202100459U (en) * | 2011-01-14 | 2012-01-04 | 上海汉钟精机股份有限公司 | Screw compressor |
-
2011
- 2011-01-14 CN CN2011100074995A patent/CN102588280A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS639694A (en) * | 1986-07-01 | 1988-01-16 | Hitachi Ltd | Screw compressor |
| CN2617958Y (en) * | 2003-03-28 | 2004-05-26 | 大连冷冻机股份有限公司 | Slide valve bracket of screw compressor |
| CN101514702A (en) * | 2009-03-23 | 2009-08-26 | 上海汉钟精机股份有限公司 | Screw compressor |
| CN202100459U (en) * | 2011-01-14 | 2012-01-04 | 上海汉钟精机股份有限公司 | Screw compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106164490A (en) * | 2014-04-18 | 2016-11-23 | 江森自控日立空调技术（香港）有限公司 | Helical-lobe compressor |
| CN106089721A (en) * | 2016-08-11 | 2016-11-09 | 成都陵川常友汽车部件制造有限公司 | The quality inspection system of engine noise reduction element |
| CN106089721B (en) * | 2016-08-11 | 2018-06-26 | 四川行之智汇知识产权运营有限公司 | The quality inspection system of engine noise reduction element |
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| PB01 | Publication | ||
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Application publication date: 20120718 |