CN205047506U - Centrifugal fan blade - Google Patents
Centrifugal fan blade Download PDFInfo
- Publication number
- CN205047506U CN205047506U CN201520748389.8U CN201520748389U CN205047506U CN 205047506 U CN205047506 U CN 205047506U CN 201520748389 U CN201520748389 U CN 201520748389U CN 205047506 U CN205047506 U CN 205047506U
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- blade
- saving
- chassis
- wheel hub
- hole
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Abstract
The utility model relates to a ventilation equipment field. A centrifugal fan blade, includes chassis, wheel hub, a plurality of blade and outer lane, and the wheel hub outside is even as an organic whole with the chassis, and the blade bottom is even as an organic whole with the chassis, and the outer lane is even as an organic whole with the lateral wall at blade top, blade quantity is equipped with a plurality of provinces material hole on the chassis between 37~45, the area in two at least provinces material hole is different. This centrifugal fan blade's advantage is novel structure, and the chassis takes place to be out of shape at the shi buhui that moulds plastics, adjusts the initial unbalance of fan blade through economizing material hole area, has reduced the weight and the manufacturing cost of product.
Description
Technical field
The utility model relates to field of ventilation equipment, particularly relates to a kind of centrifugation blade.
Background technique
Centrifugation blade is product conventional in field of ventilation equipment, and centrifugation blade comprises chassis, wheel hub, multiple blade and outer ring, is connected as a single entity outside wheel hub with inside chassis, and blade bottom end and chassis are connected as a single entity, and the outer side wall of outer ring and vane tip is connected as a single entity.Centrifugation blade is moulding, in order to reduce the weight of product, generally can hold multiple material-saving mouth on wheel hub.The deficiency that existing centrifugation blade exists is: (1) chassis is when injection moulding because size conference deforms, and cost of production is also high; (2) in order to adjust the initial unbalance of fan blade, needing to increase counterweight, further having increased the weight of the weight of product, not only affected the performance of product but also add production cost.
Summary of the invention
The purpose of this utility model is the defect existed to solve existing centrifugation blade, and provide a kind of novel structure, chassis can not deform when injection moulding, and the initial unbalance of adjustment fan blade can not increase the centrifugation blade of product weight and cost.
In order to realize above-mentioned object, the utility model have employed following technological scheme:
A kind of centrifugation blade, comprise chassis, wheel hub, multiple blade and outer ring, be connected as a single entity outside wheel hub with chassis, blade bottom end and chassis are connected as a single entity, and the outer side wall of outer ring and vane tip is connected as a single entity; Blade quantity is between 37 ~ 45, and chassis is provided with multiple material-saving hole, and the area at least two material-saving holes is different.
As preferably, material-saving hole is circular material-saving hole, and the center of circle in all material-saving holes is identical to the distance between hub centre, and namely the center of circle in all material-saving holes is in circumferentially same; The radius at least two material-saving holes is different.It is the most convenient that circular material-saving hole and home position fix production, by adjustment radius size and adjustable balance when especially home position is fixing, very convenient.
As preferably, described material-saving hole is at least 3, and the spacing between adjacent material-saving hole has difference, and material-saving hole uses as the initial unbalance of adjustment fan blade, and the spacing between adjacent material-saving hole is more conducive to adjustment.
As preferably, wheel hub is provided with multiple material-saving mouth, reduce further weight and the production cost of product.
As preferably, the distance of the center of circle to the blade the inner in material-saving hole is less than the distance of the center of circle to wheel hub outer ledge in material-saving hole, and the outer end of chassis when injection moulding by blade more easily deforms, and therefore said structure is more conducive to preventing chassis to be out of shape.
Have employed a kind of centrifugation blade of above-mentioned technological scheme, chassis is provided with multiple material-saving hole, and an effect in material-saving hole is that material-saving reduces product weight and cost of production, and another important effect prevents chassis from deforming when injection moulding; The area at least two material-saving holes is different, the most important effect in material-saving hole is the means of the initial unbalance as adjustment fan blade, have employed the adjustment that brand-new mode carries out the initial unbalance of fan blade, instead of by the mode of material-saving hole loss of weight the mode that existing balancing weight increases the weight of.The advantage of this centrifugation blade is novel structure, and chassis can not deform when injection moulding, by the initial unbalance of material-saving hole area adjustment fan blade, reduces weight and the cost of production of product.
Accompanying drawing explanation
Fig. 1: the structural representation of embodiment of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1, embodiment of the present utility model is made a detailed explanation.
A kind of centrifugation blade as shown in Figure 1, comprises chassis 1, wheel hub 3, multiple blade 2 and outer ring 4, is connected as a single entity outside wheel hub 3 with inside chassis 1, and the bottom of all blades 2 is all connected as a single entity with chassis 1, and outer ring 4 is connected as a single entity with the outer side wall at blade 2 top.Wheel hub 3 is provided with multiple material-saving mouth 31, reduce further weight and the production cost of product.Blade 2 quantity 43.The center of centrifugation blade and the center of wheel hub 3 are provided with motor axis hole.
Chassis 1 is provided with at least 3 material-saving holes 11, and the area at least two material-saving holes 11 is different.Material-saving hole 11 is circular material-saving holes, and the center of circle in all material-saving holes 11 is identical to the distance between hub centre, and namely the center of circle in all material-saving holes 11 is in circumferentially same.The radius at least two material-saving holes 11 is different.The fixing production of home position in circular material-saving hole is the most convenient, by adjustment radius size and adjustable balance when especially home position is fixing, very convenient.Spacing between adjacent material-saving hole 11 has difference, and material-saving hole 11 uses as the initial unbalance of adjustment fan blade, and the spacing between adjacent material-saving hole 11 is more conducive to adjustment.
The distance of the center of circle to blade 2 the inner in material-saving hole 11 is less than the distance of the center of circle to wheel hub 3 outer ledge in material-saving hole 11, and the outer end of chassis 1 when injection moulding by blade 2 more easily deforms, and therefore said structure is more conducive to preventing chassis 1 to be out of shape.
The most important effect in material-saving hole 11 is the means of the initial unbalance as adjustment fan blade, the initial unbalance of traditional adjustment fan blade is by increasing balancing weight to reach the object of weight balancing at grammes per square metre lower, increases balancing weight and not only makes the weight of product increase the performance that impact uses but also the cost adding use.The mode that existing balancing weight increases the weight of is instead of by the mode of material-saving hole 11 loss of weight, specifically the object that weight that material-saving hole alleviates this place reaches weight balancing is set in grammes per square metre eminence, because the weight subtracted can not be completely the same, therefore there is material-saving hole 11 radius difference and the different reason of area everywhere.
Claims (5)
1. a centrifugation blade, comprise chassis, wheel hub, multiple blade and outer ring, be connected as a single entity outside wheel hub with chassis, blade bottom end and chassis are connected as a single entity, and the outer side wall of outer ring and vane tip is connected as a single entity; It is characterized in that: blade quantity is between 37 ~ 45, and chassis is provided with multiple material-saving hole, the area at least two material-saving holes is different.
2. a kind of centrifugation blade according to claim 1, it is characterized in that material-saving hole is circular material-saving hole, the center of circle in all material-saving holes is identical to the distance between hub centre, and namely the center of circle in all material-saving holes is in circumferentially same; The radius at least two material-saving holes is different.
3. a kind of centrifugation blade according to claim 2, it is characterized in that described material-saving hole is at least 3, the spacing between adjacent material-saving hole has difference.
4. a kind of centrifugation blade according to claim 1 and 2, is characterized in that wheel hub is provided with multiple material-saving mouth.
5. a kind of centrifugation blade according to claim 2, is characterized in that the distance of the center of circle in material-saving hole to blade the inner is less than the distance of the center of circle to wheel hub outer ledge in material-saving hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748389.8U CN205047506U (en) | 2015-09-25 | 2015-09-25 | Centrifugal fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748389.8U CN205047506U (en) | 2015-09-25 | 2015-09-25 | Centrifugal fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047506U true CN205047506U (en) | 2016-02-24 |
Family
ID=55341089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520748389.8U Active CN205047506U (en) | 2015-09-25 | 2015-09-25 | Centrifugal fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047506U (en) |
-
2015
- 2015-09-25 CN CN201520748389.8U patent/CN205047506U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |