CN204283882U - Blower fan - Google Patents
Blower fan Download PDFInfo
- Publication number
- CN204283882U CN204283882U CN201420661894.4U CN201420661894U CN204283882U CN 204283882 U CN204283882 U CN 204283882U CN 201420661894 U CN201420661894 U CN 201420661894U CN 204283882 U CN204283882 U CN 204283882U
- Authority
- CN
- China
- Prior art keywords
- apexed rotor
- blower fan
- gear
- apexed
- rotor
- 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 kind of blower fan, it comprises the first three-apexed rotor and the second three-apexed rotor, first three-apexed rotor, the second three-apexed rotor are symmetrical with compressing section in the axial direction, radial disbalance vector becomes 180 degree of symmetries, the inner side of the first three-apexed rotor, the inner side of the second three-apexed rotor are all provided with gear ring, the inner side of gear ring is provided with an eccentric shaft, and eccentric shaft is equipped with gear, and the gear ratio of gear ring and gear is 3:1.The utility model blower fan is positive displacement blower fan, and efficiency is high, and noise is low, operates steadily.
Description
Technical field
The utility model relates to a kind of engineering goods, particularly relates to a kind of blower fan.
Background technique
The blower fan of identical performance parameter has multistage centrifugal blower and roots blower in the market, but efficiency is not very high, mainly there is following problem:
One, multistage centrifugal blower leaks (volumetric loss), the leakage (volumetric loss) in impeller port ring gap, the loss of aerodynamic force that blade design brings due to inter-stage, and the operational efficiency of multistage centrifugal blower is 65% ~ 70%; Multistage centrifugal blower is because bringing noise at a high speed, and vibration is large, there is surging phenomenon simultaneously, reduces the working life of equipment.
Two, roots blower also belongs to positive displacement blower fan, because it is external compression, brings internal energy loss, and air is breathed heavily conductance and caused high drops, often occurs the phenomenons such as deficiency in draught.Roots blower fan blade machining accuracy is high, and final assembly difficulty is large, and gap adjustment is bad, easily stuck, and gear should wear and tear, and can not repair, cause excesssive gap, decrease in efficiency, noise, vibrates also larger.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of blower fan, and it is positive displacement blower fan, and efficiency is high, and noise is low, operates steadily.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of blower fan, it is characterized in that, it comprises the first three-apexed rotor and the second three-apexed rotor, first three-apexed rotor, the second three-apexed rotor are symmetrical with compressing section in the axial direction, radial disbalance vector becomes 180 degree of symmetries, and the inner side of the first three-apexed rotor, the inner side of the second three-apexed rotor are all provided with gear ring, and the inner side of gear ring is provided with an eccentric shaft, eccentric shaft is equipped with gear, and the gear ratio of gear ring and gear is 3:1.
Preferably, two equilibrium blocks are provided with between described first three-apexed rotor and the second three-apexed rotor.
Preferably, be respectively equipped with seal roll parts between the outside of described first three-apexed rotor and a housing, between the outside of the second three-apexed rotor and housing, seal roll parts are made up of roller, bracket, and roller floats on bracket.
Preferably, described compressing section is provided with two inlet holes and two holes that spue.
Preferably, the outside of described equilibrium block is provided with model plug envelope.
Preferably, described geared sleeve is on an axle, and the outside of axle is connected with a sliding bearing.
Positive progressive effect of the present utility model is: the utility model blower fan is positive displacement blower fan, and efficiency is high, and noise is low, operates steadily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model blower fan.
Embodiment
The utility model preferred embodiment is provided, to describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model blower fan comprises the first three-apexed rotor 1 and the second three-apexed rotor 12, first three-apexed rotor, second three-apexed rotor is symmetrical with compressing section 2 in the axial direction, radial disbalance vector becomes 180 degree of symmetries, the inner side of the first three-apexed rotor, the inner side of the second three-apexed rotor is all provided with gear ring 3, the inner side of gear ring 3 is provided with an eccentric shaft 4, gear 5 eccentric shaft is equipped with, the gear ratio of gear ring and gear is 3:1, that is axle revolves and turns around, three-apexed rotor rotates 1/3 circle relative to eccentric shaft, object reduces rotary inertia, operate steadily, strengthen the volume of suction chamber or delivery chamber, improve its working efficiency.Two equilibrium blocks 6 are provided with between first three-apexed rotor and the second three-apexed rotor.Be respectively equipped with seal roll parts between the outside of the first three-apexed rotor and a housing 8, between the outside of the second three-apexed rotor and housing 8, seal roll parts are made up of roller 7, bracket 13, and roller 7 floats on bracket.The outside of equilibrium block is provided with model plug envelope 9.Gear 5 is enclosed within an axle 11, and the outside of axle 11 is connected with a sliding bearing 10, and sliding bearing 10 conveniently positions.
Compressing section is provided with two inlet holes and two holes that spue, the positional symmetry distribution of two inlet holes, the positional symmetry distribution in two holes that spue.
The utility model has following characteristics: one, because three-apexed rotor is eccentric rotary, very large amount of unbalance is had concerning rotor, rotor rotates and can produce amount of deflection to axle, bending when rotating to prevent axle, the utility model designs a three-apexed rotor respectively in compressing section both sides, and make two three-apexed rotors rotate amount of unbalance radial symmetric, that is two three-apexed rotor amount of unbalance radial vectors become 180 degree, avoid the bending shaft that three-apexed rotor eccentric rotary causes, the situations such as bending shaft can produce noise, vibration is large, and frictional force is large, stuck.Because two three-apexed rotor vane collocation axial distances are far away, even if distributing installation three-apexed rotor like this, likely thoroughly can not eliminate the amount of unbalance on axle, for this situation, the utility model is provided with two equilibrium blocks (or being called " balancing weight ") between two three-apexed rotors, and these two equilibrium blocks become 180 degree with the unbalance vector of the three-apexed rotor of respective side respectively.Through calculating: the amount of unbalance on axle is eliminated substantially, steadily reliable during three-apexed rotor blower fan actual motion, friction.Two, three-apexed rotor triangle place and housing inner ring keep gapless state, in order to reduce friction, the utility model devises seal roll parts, is made up of roller, bracket, and roller floats on bracket, roller is relative with inner walls gapless to roll, design like this, not only frictional loss is little, and volumetric efficiency loss is less.Three, machine envelope rotating ring adopts model plug envelope, and machine envelope stationary ring adopts nodular cast iron, can provide very large compression ratio, be applicable to compressed air sealing, adopt film lubrication between dynamic and static ring, reduce friction, improve fan efficiency.Four, three-apexed rotor Its Track Design, calculates delivery chamber, suction chamber volume according to air quantity, blast, rotating speed, then calculates the movement locus of three-apexed rotor according to the size of this volume.Five, gear ring is equipped with in each three-apexed rotor side, the eccentric shaft matched fills a gear with it, and gear ring and gear ratio are 3:1, and that is axle revolves and turns around, and three-apexed rotor rotates 1/3 circle relative to eccentric shaft.Gear driven gear ring rotates together when the shaft is rotated, and three-apexed rotor does eccentric rotary under the drive of gear ring, and gear turns three circles just can cover gear ring one circle, therefore, axle turns three circles, and three-apexed rotor turns around, and three-apexed rotor blade completes twice air-breathing and exhaust inside housing.
Above-described specific embodiment; the technical problem of solution of the present utility model, technological scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a blower fan, it is characterized in that, it comprises the first three-apexed rotor and the second three-apexed rotor, first three-apexed rotor, the second three-apexed rotor are symmetrical with compressing section in the axial direction, radial disbalance vector becomes 180 degree of symmetries, and the inner side of the first three-apexed rotor, the inner side of the second three-apexed rotor are all provided with gear ring, and the inner side of gear ring is provided with an eccentric shaft, eccentric shaft is equipped with gear, and the gear ratio of gear ring and gear is 3:1.
2. blower fan as claimed in claim 1, is characterized in that, be provided with two equilibrium blocks between described first three-apexed rotor and the second three-apexed rotor.
3. blower fan as claimed in claim 2, it is characterized in that, be respectively equipped with seal roll parts between the outside of described first three-apexed rotor and a housing, between the outside of the second three-apexed rotor and housing, seal roll parts are made up of roller, bracket, and roller floats on bracket.
4. blower fan as claimed in claim 2, it is characterized in that, described compressing section is provided with two inlet holes and two holes that spue.
5. blower fan as claimed in claim 4, is characterized in that, the outside of described equilibrium block is provided with model plug envelope.
6. blower fan as claimed in claim 1, it is characterized in that, described geared sleeve is on an axle, and the outside of axle is connected with a sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661894.4U CN204283882U (en) | 2014-11-08 | 2014-11-08 | Blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661894.4U CN204283882U (en) | 2014-11-08 | 2014-11-08 | Blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283882U true CN204283882U (en) | 2015-04-22 |
Family
ID=52867047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420661894.4U Expired - Fee Related CN204283882U (en) | 2014-11-08 | 2014-11-08 | Blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626517A (en) * | 2014-11-08 | 2016-06-01 | 上海瑞晨环保科技有限公司 | Blower |
-
2014
- 2014-11-08 CN CN201420661894.4U patent/CN204283882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626517A (en) * | 2014-11-08 | 2016-06-01 | 上海瑞晨环保科技有限公司 | Blower |
| CN105626517B (en) * | 2014-11-08 | 2019-05-24 | 上海瑞晨环保科技股份有限公司 | Blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151108 |
|
| EXPY | Termination of patent right or utility model |