CN201339577Y - Rotor of screw rod compressor - Google Patents
Rotor of screw rod compressor Download PDFInfo
- Publication number
- CN201339577Y CN201339577Y CNU2009200383431U CN200920038343U CN201339577Y CN 201339577 Y CN201339577 Y CN 201339577Y CN U2009200383431 U CNU2009200383431 U CN U2009200383431U CN 200920038343 U CN200920038343 U CN 200920038343U CN 201339577 Y CN201339577 Y CN 201339577Y
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- China
- Prior art keywords
- rotor
- female
- curved
- male
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a rotor of a screw rod compressor. The structure of the rotor is that: the rotor comprises a female rotor and a male rotor, the two sides of the female rotor and the male rotor are unsymmetrical, curved lines which compose the female rotor and the male rotor are circular arcs and envelope lines, the tooth ratio of the female rotor and the male rotor is 6:5, and clearances exist among teeth. The rotor is characterized in that: with the center point of the female rotor as the origin of coordinates, the clearance between the female rotor and the male rotor is within 0.044 to 0.118mm; the rotor which is manufactured according to the actual profile coordinates has the characteristics of curved-surface to curved-surface, small rotor and high rotating speed. Compared with the prior art, the rotor can completely realize the sealing of curved-surface to curved-surface, is helpful for forming a fluid power lubricating film, and can reduce transverse leakage, thereby improving the efficiency of the compressor. The rotor has the characteristics of stable meshing, less abrasion, good sealing property, convenient processing as well as detecting, weak vibration, low noise and high efficiency of the compressor.
Description
(1) technical field:
The utility model relates to a kind of rotor, relates in particular to a kind of rotor of helical lobe compressor.
(2) background technique:
In the helical-lobe compressor, the shape of rotor has determined the performance of helical-lobe compressor substantially, the molded lines of at present existing representative rotor of helical lobe compressor mainly contains: the molded lines of certain company of Germany, the molded lines of Sweden company, and the molded lines of company such as Taiwan, Japan, these molded lines are chosen different molded lines and combination thereof, because the design orientation is different, pluses and minuses are respectively arranged, but the common drawback that prior art exists is: axially tightness is low, and efficient is low, there is cusp in curve, stress is concentrated, and is unfavorable for bearing big load, and is not easy to processing and detection.
(3) summary of the invention:
The purpose of this utility model is to provide the rotor of helical lobe compressor that a kind of axial tightness is better, efficient is high.
Invention thinking of the present utility model is:
New molded lines by the design rotor of helical lobe compressor, the sealing of safety realization " curved surface is to curved surface " between rotor when making helical-lobe compressor work, and do not comprise the sealing of any " curve-curve ", help to form the hydrodynamic lubrication film, reduction improves the efficient of compressor by the axial leakage of contact zones; Simultaneously, also be to control gap width between the negative and positive rotor well, guaranteeing unlikely interference behind the rotor expanded by heating, and can guarantee gas seal between the rotor.Thereby realize between the negative and positive rotor engagement steadily, it is little wear and tear, and good airproof performance is convenient to detect and process, and vibrates for a short time, and noise is low, the compressor efficiency height.
The utility model reaches above purpose by following measure:
A kind of rotor of helical lobe compressor, it comprises female rotor and male rotor, it is characterized by the bilateral asymmetric of female rotor and male rotor, forming curve is circular arc and envelope thereof, the gear ratio of negative and positive rotor is 6: 5, have the gap between the negative and positive rotor, it is characterized in that: the central point with female rotor is a true origin, and the gap between the negative and positive rotor is 0.044-0.118mm.
Gap width between the negative and positive rotor in the technique scheme both can guarantee unlikely interference behind the rotor expanded by heating, and can guarantee gas seal between the rotor.
When the gap between described negative and positive rotor is 0.081mm, ideal.
Further technological scheme is again:
The theory shaped wire coordinate of described negative and positive rotor following (central point with female rotor is a true origin):
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365 42.4395 20.1963 55.0043 21.3431
366 42.4138 20.2502 54.9817 21.4013
367 42.3881 20.3040 54.9590 21.4594
368 42.3795 20.3219 54.9515 21.4788
Compared with the prior art the utility model can produce following good effect:
1. the utility model composition tooth curve is circular arc, ellipse and envelope thereof, and this can make the rotor flank of tooth change face seal into by linear sealing, obviously improves sealing effect, help forming the hydrodynamic lubrication oil film, reduce tooth surface abrasion, reduce transverse leakage, improve compressor efficiency by contact zones;
2. connection is smooth between the utility model flank of tooth, and no cusp is convenient to processing and detection, and cleanliness is good, and noise is low;
3. adopt bilateral molded lines, moment is distributed rationally between rotor, vibrates little;
4. rotor tooth depth radius and addendum are reasonable, displacement and refrigerating capacity height;
5. the negative and positive root diameter is more or less the same, and rotor rigidity is approaching, the bearing capacity height.
Between the utility model negative and positive rotor engagement steadily, it is little wear and tear, good airproof performance is convenient to detect and process, and vibrates for a short time, noise is low, the compressor efficiency height.Realized goal of the invention easily.
(4) description of drawings:
Below with reference to drawings and Examples the utility model is described in further details:
Accompanying drawing 1 is the end surface shape schematic representation of negative and positive rotor in rectangular coordinate system among the utility model embodiment.
Each sequence number is respectively in the accompanying drawing: 1, female rotor; 2, male rotor.
(5) embodiment:
Referring to accompanying drawing 1, a kind of rotor of helical lobe compressor shown in the utility model embodiment comprises female rotor 1 and male rotor 2, described female rotor 1 and male rotor 2 bilateral asymmetric, forming curve is circular arc and envelope thereof, the gear ratio of negative and positive rotor is 6: 5, having the gap between the negative and positive rotor, is true origin with the central point of female rotor 1, and the actual coordinate of female rotor 1, male rotor 2 adopts the concrete profile coordinate in " more further technological scheme ".In order to save space, just do not repeat to have listed here.In entire work process, the gap length between the negative and positive rotor fluctuates about 0.081mm, but remains between 0.044-0.118mm.
Above-mentioned drawings and Examples only are used to illustrate the utility model, and protection domain of the present utility model is not constituted any limitation.
Claims (3)
1, a kind of rotor of helical lobe compressor, it comprises female rotor and male rotor, described female rotor and male rotor bilateral asymmetric, forming curve is circular arc and envelope thereof, the gear ratio of negative and positive rotor is 6: 5, have the gap between the negative and positive rotor, it is characterized in that: the central point with female rotor is a true origin, and the gap between the negative and positive rotor is 0.044-0.118mm.
2, rotor of helical lobe compressor according to claim 1 is characterized in that: the gap between described negative and positive rotor is 0.081mm.
3, rotor of helical lobe compressor according to claim 1 is characterized in that: the theory shaped wire coordinate of described negative and positive rotor following (central point with female rotor is a true origin):
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200383431U CN201339577Y (en) | 2009-01-15 | 2009-01-15 | Rotor of screw rod compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200383431U CN201339577Y (en) | 2009-01-15 | 2009-01-15 | Rotor of screw rod compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339577Y true CN201339577Y (en) | 2009-11-04 |
Family
ID=41235124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200383431U Expired - Fee Related CN201339577Y (en) | 2009-01-15 | 2009-01-15 | Rotor of screw rod compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339577Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234996A (en) * | 2014-06-13 | 2014-12-24 | 台州市德嘉机电科技有限公司 | Measuring method of clearance leakage amount of multi-rotor screw pump |
| CN104728117A (en) * | 2015-02-17 | 2015-06-24 | 上海偌托新能源科技有限公司 | Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine |
-
2009
- 2009-01-15 CN CNU2009200383431U patent/CN201339577Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234996A (en) * | 2014-06-13 | 2014-12-24 | 台州市德嘉机电科技有限公司 | Measuring method of clearance leakage amount of multi-rotor screw pump |
| CN104728117A (en) * | 2015-02-17 | 2015-06-24 | 上海偌托新能源科技有限公司 | Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine |
| CN104728117B (en) * | 2015-02-17 | 2017-03-22 | 上海偌托新能源科技有限公司 | Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine |
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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: 20091104 Termination date: 20170115 |