CN205388042U - Centrifugal fan's impeller - Google Patents
Centrifugal fan's impeller Download PDFInfo
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- CN205388042U CN205388042U CN201620101334.2U CN201620101334U CN205388042U CN 205388042 U CN205388042 U CN 205388042U CN 201620101334 U CN201620101334 U CN 201620101334U CN 205388042 U CN205388042 U CN 205388042U
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- impeller
- end cap
- connecting portion
- centrifugal blower
- blade
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Abstract
The utility model provides a centrifugal fan's impeller belongs to mechanical technical field. It has been solved prior art and has had the problem that the degree of difficulty is high of making. This centrifugal fan's impeller includes the impeller body and end cover, the impeller body includes connecting seat and a plurality of blade, above -mentioned blade and connecting seat formula structure as an organic whole, the impeller body be split type structure with the end cover, the interior border and the connecting seat of above -mentioned blade are associative, the outside of blade is along having connecting portion no. 1, the end cover be ring shape and have on the end cover with connecting portion corresponding connecting portion no. 2, it is associative that the fastener is crossed to connecting portion no. 1 and connecting portion bi -pass. This centrifugal fan's impeller compact structure just processes the degree of difficulty than lower.
Description
Technical field
This utility model belongs to field of mechanical technique, relates to the impeller in a kind of impeller, particularly centrifugal blower.
Background technology
Centrifugal blower is dependent on the mechanical energy of input, improves gas pressure and supplies gas side by side the machinery of body, and it is a kind of driven fluid machinery.Centrifugal blower is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, boats and ships and building, dust discharge and cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling in the apparatus of air conditioning and domestic electric appliance and ventilation；The drying of corn and selecting and recommending；The inflation of wind-tunnel wind regime and aircushion vehicle and propelling etc..
Centrifugal blower is the principle being converted to potential energy according to kinetic energy, utilizes the impeller of high speed rotating to be accelerated by gas, then slows down, changes the flow direction, make kinetic energy convert potential energy (pressure) to.In one-stage centrifugal blower fan, gas is from axially into impeller, and gas is radially redirected when flowing through impeller, subsequently into diffuser.In diffuser, gas and changing flow direction and conduit section area increase makes flow slowing down, and this decelerating effect converts kinetic energy into pressure energy.Pressure increases and occurs mainly in impeller, secondly occurs in diffusion process.In Multi-stage centrifugal fan, allow airflow into next impeller with return channel, produce higher pressure.
Wherein impeller is the important composition part in centrifugal blower, and existing impeller is usually integral structure, owing to the blade of impeller is polymorphic structure, therefore, so makes Impeller Machining difficulty higher.
Chinese patent its publication number CN202149068U discloses a kind of split type rate revolution centrifugal pump impeller, impeller adopts Split type structure, being made up of impeller cover, impeller body and the securing member for fastening them, impeller body is passed through to be cast into integrated formed structure by blade, back shroud and wheel hub.
It can be seen that rate revolution centrifugal pump impeller adopts split-type structural, after impeller body die casting, it is simple to impeller channel surface is carried out reconditioning, it is ensured that the work efficiency of centrifugal pump；Blade thickeies 3.5～4.5 times of inlet side thickness (Exit-edge thickness be) gradually from inlet side to Exit-edge thickness, in this way, when making impeller channel area equation, impeller outlet width strengthens, so that the width-diameter ratio of impeller (impeller outlet width B/ impeller diameter D) strengthens, make impeller channel structure more reasonable, improve the work efficiency of impeller.
But, above-mentioned impeller body and impeller cover are connected either directly through securing member, owing to the blade on impeller body is relatively thin, cause that its connective stability is not high.
Other centrifugal blower fan blade wheel existing also all also exists similar problem.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for prior art, it is provided that a kind of compact conformation and be easy to the impeller of centrifugal blower of processing.
The purpose of this utility model can be realized by following technical proposal:
A kind of impeller of centrifugal blower, including impeller body and end cap, described impeller body includes connecting seat and some blades, above-mentioned blade is integral type structure with being connected seat, it is characterised in that described impeller body and end cap are split-type structural, the inside edge of above-mentioned blade is connected with being connected seat, the outer edge of described blade has connecting portion one, and described end cap is annular and has the connecting portion two corresponding with connecting portion one on end cap, and described connecting portion one is crossed securing member with connecting portion two-way and is connected.
Owing to this impeller is applied on centrifugal blower, the blade of centrifugal blower is the polymorphic structure of slightly arc.The impeller of this centrifugal blower creationary using impeller body and end cap as split-type structural, impeller body can conveniently be made by existing compression molding process.Certainly, end cap also can conveniently be made by existing extrusion process.
Can be seen that, although this impeller adopts split-type structural, and structure is somewhat complicated, but it is easy to processing, reduces difficulty of processing on the contrary.
In the impeller of above-mentioned centrifugal blower, described connecting portion one is identical with the quantity of connecting portion two and position one_to_one corresponding.
Each connecting portion one to one one and connecting portion two are connected each through securing member.
In the impeller of above-mentioned centrifugal blower, the contiguous block that described connecting portion one protrudes for blade outer edge, described contiguous block has the screwed hole run through.
Contiguous block is relatively larger, and securing member can be provided stable link position by it.
In the impeller of above-mentioned centrifugal blower, described connecting portion two is connecting cylinder cylindrically inside end cap, is screwed hole inside described connecting cylinder.
Securing member also can be provided stable link position by connecting cylinder.
In the impeller of above-mentioned centrifugal blower, having the contact chip that can match with blade inside described end cap, above-mentioned connecting cylinder is positioned at contact chip sidepiece.
The sidepiece of connecting cylinder is connected on contact chip, and the end of connecting cylinder is connected on end cap, and such structure can improve connecting cylinder intensity.
In the impeller of above-mentioned centrifugal blower, described contact chip, connecting cylinder and end cap are integral type structure.
The end cap of integral structure is by existing die carter artistic skill one-shot forming.
In the impeller of above-mentioned centrifugal blower, described securing member is screw.
Screw is relatively low as its cost of standard component and is connected firmly.
In the impeller of above-mentioned centrifugal blower, the described seat upper end that connects has edge, location recessed ringwise, and above-mentioned end cap external diameter matches with edge, location and end cap is embedded in location along place.
Connect along having two effects: when one, end cap are connected with impeller body, pre-determined bit effect can be built in opposite end；Its two, end cap can make both connections more closely and firm after being connected with impeller body.
In the impeller of above-mentioned centrifugal blower, described location is along with to be connected seat be integral type structure.
Impeller body adopts existing die carter artistic skill one-shot forming.
In the impeller of above-mentioned centrifugal blower, described end cap is circular, and above-mentioned contact chip is evenly distributed inside end cap.
While circumferential uniform contact chip can be in close contact with impeller body, end cap is also had booster action by contact chip, makes end cap have enough intensity.
In the impeller of above-mentioned centrifugal blower, described impeller body and end cap are aluminum alloy materials.
In the impeller of above-mentioned centrifugal blower, described impeller body and end cap are magnesium alloy materials.
No matter it is adopt aluminum alloy materials or magnesium alloy materials that impeller body, end cap can be made to have its weight while of sufficient intensity also to compare light.
Can also one of them of impeller body and end cap be aluminum alloy materials according to practical situation, and another one is magnesium alloy materials.
Compared with prior art, the impeller of this centrifugal blower due to impeller body and end cap be split-type structural so that whole Impeller Machining is easy.
, end cap having with blade edge along the contact chip contacted, after end cap connects with impeller body, it contacts stable, and whole impeller stability is high meanwhile.
It addition, the setting on edge, location not only further increases the stability of impeller, and the effect of pre-determined bit can be played in assembling process, assemble also easier, there is significantly high practical value.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of the impeller of this centrifugal blower.
Fig. 2 be this centrifugal blower impeller in the Facad structure schematic diagram of end cap.
Fig. 3 is the structure schematic diagram of the impeller loyalty end cap of this centrifugal blower.
Fig. 4 be this centrifugal blower impeller in the structural representation of impeller body.
In figure, 1, impeller body；1a, connection seat；1b, blade；1b1, contiguous block；1c, edge, location；2, end cap；2a, connecting cylinder；2b, contact chip.
Detailed description of the invention
Embodiment one
As shown in Fig. 1 and Fig. 2 and Fig. 3 and Fig. 4, the impeller of this centrifugal blower includes impeller body 1 and end cap 2, described impeller body 1 includes connecting seat 1a and some blade 1b, above-mentioned blade 1b is integral type structure with being connected seat 1a, described impeller body 1 and end cap 2 are split-type structural, the inside edge of above-mentioned blade 1b is connected with being connected seat 1a, the outer edge of described blade 1b has connecting portion one, described end cap 2 in annular and has the connecting portion two corresponding with connecting portion one on end cap 2, and described connecting portion one is crossed securing member with connecting portion two-way and is connected.
Described connecting portion one is identical with the quantity of connecting portion two and position one_to_one corresponding.
The contiguous block 1b1 that described connecting portion one protrudes for blade outer edge, described contiguous block 1b1 has the screwed hole run through.
Described connecting portion two is connecting cylinder 2a cylindrically inside end cap 2, is screwed hole inside described connecting cylinder 2a.
Having the contact chip 2b that can match with blade 1b inside described end cap 2, above-mentioned connecting cylinder 2a is positioned at contact chip 2b sidepiece.
Described contact chip 2b, connecting cylinder 2a and end cap 2 are integral type structure.
Described securing member is screw.
The described seat 1a upper end that connects has location recessed ringwise along 1c, and above-mentioned end cap 2 external diameter and location match along 1c and end cap 2 is embedded in location along 1c place.
Described location is integral type structure along 1c with being connected seat 1a.
Described end cap 2 is in circular, and above-mentioned contact chip 2b is evenly distributed inside end cap 2.
Owing to this impeller is applied on centrifugal blower, the blade 1b of centrifugal blower is the polymorphic structure of slightly arc.The impeller of this centrifugal blower creationary using impeller body 1 and end cap 2 as split-type structural, impeller body 1 can conveniently be made by existing compression molding process.Certainly, end cap 2 also can conveniently be made by existing extrusion process.
Can be seen that, although this impeller adopts split-type structural, and structure is somewhat complicated, but it is easy to processing, reduces difficulty of processing on the contrary.
In the present embodiment, in order to reduce the weight of whole impeller and ensure that its intensity, impeller body and end cap are aluminum alloy materials.
Embodiment two
The present embodiment is essentially identical with the structure of embodiment one, and different place is in that: impeller body and end cap are magnesium alloy materials.
Claims (10)
1. the impeller of a centrifugal blower, including impeller body and end cap, described impeller body includes connecting seat and some blades, above-mentioned blade is integral type structure with being connected seat, it is characterised in that described impeller body and end cap are split-type structural, the inside edge of above-mentioned blade is connected with being connected seat, the outer edge of described blade has connecting portion one, and described end cap is annular and has the connecting portion two corresponding with connecting portion one on end cap, and described connecting portion one is crossed securing member with connecting portion two-way and is connected.
2. the impeller of centrifugal blower according to claim 1, it is characterised in that described connecting portion one is identical with the quantity of connecting portion two and position one_to_one corresponding.
3. the impeller of centrifugal blower according to claim 2, it is characterised in that the contiguous block that described connecting portion one protrudes for blade outer edge, described contiguous block has the screwed hole run through.
4. the impeller of centrifugal blower according to claim 2, it is characterised in that described connecting portion two is connecting cylinder cylindrically inside end cap, is screwed hole inside described connecting cylinder.
5. the impeller of centrifugal blower according to claim 4, it is characterised in that having the contact chip that can match with blade inside described end cap, above-mentioned connecting cylinder is positioned at contact chip sidepiece.
6. the impeller of centrifugal blower according to claim 5, it is characterised in that described contact chip, connecting cylinder and end cap are integral type structure.
7. the impeller of centrifugal blower according to claim 1, it is characterised in that described securing member is screw.
8. the impeller of centrifugal blower according to claim 1, it is characterised in that the described seat upper end that connects has edge, location recessed ringwise, and above-mentioned end cap external diameter matches with edge, location and end cap is embedded in location along place.
9. the impeller of centrifugal blower according to claim 8, it is characterised in that described location is along with to be connected seat be integral type structure.
10. the impeller of centrifugal blower according to claim 5, it is characterised in that described end cap is circular, above-mentioned contact chip is evenly distributed inside end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620101334.2U CN205388042U (en) | 2016-01-31 | 2016-01-31 | Centrifugal fan's impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620101334.2U CN205388042U (en) | 2016-01-31 | 2016-01-31 | Centrifugal fan's impeller |
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| Publication Number | Publication Date |
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| CN205388042U true CN205388042U (en) | 2016-07-20 |
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| CN201620101334.2U Active CN205388042U (en) | 2016-01-31 | 2016-01-31 | Centrifugal fan's impeller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587686A (en) * | 2016-01-31 | 2016-05-18 | 嘉善卡固电气设备有限公司 | Impeller of centrifugal fan |
| CN106593949A (en) * | 2016-09-12 | 2017-04-26 | 东莞市卓奇电子科技有限公司 | Split impeller |
| CN107131149A (en) * | 2017-07-14 | 2017-09-05 | 成军 | Impeller |
-
2016
- 2016-01-31 CN CN201620101334.2U patent/CN205388042U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587686A (en) * | 2016-01-31 | 2016-05-18 | 嘉善卡固电气设备有限公司 | Impeller of centrifugal fan |
| CN106593949A (en) * | 2016-09-12 | 2017-04-26 | 东莞市卓奇电子科技有限公司 | Split impeller |
| CN106704260A (en) * | 2016-09-12 | 2017-05-24 | 东莞市卓奇电子科技有限公司 | Turbine assembly, multistage cascade turbine and turbine jet-flow method |
| CN106704260B (en) * | 2016-09-12 | 2023-08-22 | 东莞市卓奇电子科技有限公司 | multi-stage cascade turbine |
| CN107131149A (en) * | 2017-07-14 | 2017-09-05 | 成军 | Impeller |
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