CN204783826U - What blade was wedge, backplate for dish prevents laying dust fan wheel - Google Patents
What blade was wedge, backplate for dish prevents laying dust fan wheel Download PDFInfo
- Publication number
- CN204783826U CN204783826U CN201520571469.0U CN201520571469U CN204783826U CN 204783826 U CN204783826 U CN 204783826U CN 201520571469 U CN201520571469 U CN 201520571469U CN 204783826 U CN204783826 U CN 204783826U
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- China
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- impeller
- blade
- backplate
- dish
- wedge
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Abstract
The utility model discloses a what blade was wedge, backplate for dish prevents laying dust fan wheel, including impeller backplate, impeller panel and blade, the blade arranges into that the impeller shaft is radial, centrosymmetric cavity wedge, and the impeller backplate be dish -shaped, cavity wedge blade is connected the impeller panel and is formed impeller body with the welding of saucer -shaped impeller backplate, the impeller panel is equipped with the air intake, the saucer -shaped impeller backplate passes through fix with rivet and connecting axle seat, and the axle bed coordinates with the fan axle through the shaft hole and is connected. The utility model discloses a when fan wheel used, because the blade designs into the cavity wedge, and blade diameter of axle centering symmetry, therefore high -speed when rotatory, the blade surface had centrifugal self purification down in the centrifugal force effect, makes the dust receive the centrifugal force effect and can't adhere to, can not accumulate the dust, the impeller is particularly suitable for and around the end plate distance big, the also big very much big fan of the wide impeller adoption of required delivery air volume, the dish backplate has improved fan compressive strength and life.
Description
Technical field
The utility model relates to a kind of draught fan impeller, specifically refers to the anti-laying dust draught fan impeller that blade is wedge shape, backboard is dish.
Background technique
Blower fan is the power equipment carrying out gas conveying; have and apply extremely widely; but all contain certain dust in the air-flow of most of use occasion; during blower fan work; air-flow by during the draught fan impeller of High Rotation Speed due to centrifugation, dust granule can depart from air-flow phase and deposit and be attached on draught fan impeller.
Because the rotating speed of draught fan impeller is general all higher, as long as there is micro-dust to exist in air-flow, all more dust can be accumulated after working long hours, thus change the balance of draught fan impeller rotation, if draught fan impeller does not have self purification not clear up in time to dust yet, will cumulative and progressively change draught fan impeller Static and dynamic balance, thus produce vibration.Have the dust that part hardens to be come off by vibration once run into, will balance away from the dynamic rotary of blower fan immediately, then produce judder, this may cause serious personnel and device security accident.
Therefore, if can a kind of draught fan impeller be designed, Automatic clearance can be carried out and just do not worry causing dust accumulation, for keeping the reliable and stable work of blower fan and stopping the meaning that security incident all has particular importance.
Model utility content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art exactly, provides a kind of simple and practical, the anti-laying dust draught fan impeller that the blade of energy Automatic clearance dust is wedge shape, backboard is dish.
For overcoming the deficiencies in the prior art, the utility model takes following technological scheme:
The anti-laying dust draught fan impeller that blade is wedge shape, backboard is dish, comprises impeller backboard, impeller panel and blade, it is characterized in that: vane collocation becomes impeller shaft radial direction, centrosymmetric hollow wedge, and impeller backboard is dish; Hollow wedge blade connects impeller panel and is welded to form impeller bodies with dish-shaped impeller backboard; Impeller panel is provided with intake grill, dish-shaped impeller backboard by the fixing also connection shaft seat of rivet, and axle bed is connected by axis hole and fan shaft.
When draught fan impeller of the present utility model uses, because blade design becomes hollow wedge, and sharf radial center is symmetrical, thus during High Rotation Speed, blade surface has centrifugal self purification under centrifugal action, make dust be subject to centrifugal action and cannot adhere to, dynamic, the static equilibrium of impeller would not be affected like this, more can not accumulate dust; The technological scheme of this blade structure, be particularly suitable for end plate distance before and after impeller large, namely impeller thickness is large especially, and the required delivery air amount also large blower fan of king-sized wide impeller adopts.
Compared with common impeller backboard, the characteristics and advantages of dish impeller backboard is: when steel plate thickness is the same, dish backboard due to rigidity reinforced, stress dispersion, elastic buffer improve and shape stability also significantly improve, thus bearing capacity can be enhanced about more than once on common flat backboard basis.Because backboard almost carries whole fans load, understand more durable so dish made by backboard, the wheel hub of truck is because have disc structure, so bearing capacity strengthens, also more durable.
Compared with prior art, the beneficial effects of the utility model are also:
Blade design becomes hollow wedge, and sharf radial center is symmetrical, and the blower fan backboard making it connect and the anti-relative torsion of panel, to extrude rigidity extremely strong, can stop to use the fan blade caused to connect the fracture of backboard root for a long time.
Blade design becomes hollow wedge, and sharf radial center is symmetrical, even also can obtain higher intensity with thinner board making draught fan impeller, ensures to stablize, reliably use, can save material, be convenient to make, be also conducive to light and handyization of equipment.
Blade ingehious design is become hollow wedge by the utility model, and the shape of sharf radial center symmetry, achieve the real-time cleaning of dust, extend the security incident also effectively stopping dust accumulation initiation working life of equipment, have a extensive future.
Accompanying drawing explanation
Fig. 1 is plane structure schematic diagram of the present utility model.
Fig. 2 is cross-sectional view of the present utility model.
In figure, each label represents:
1, Wedge blade; 2, impeller cylindrical; 3, impeller intake grill; 4, axle bed; 5, rivet; 6, axis hole; 7, dish-shaped impeller backboard; 8, impeller panel.
Embodiment
Now by reference to the accompanying drawings, the utility model is illustrated further.
Blade is wedge shape as depicted in figs. 1 and 2, backboard is the anti-laying dust draught fan impeller of dish, and comprise impeller backboard 7, impeller panel 8 and blade 1, blade 1 is arranged to impeller shaft radial direction, centrosymmetric hollow wedge, and impeller backboard 7 be dish-shaped; Hollow wedge blade 1 connects impeller panel 8 and is welded to form impeller bodies with dish-shaped impeller backboard 7; Impeller panel 8 is provided with intake grill 3, dish-shaped impeller backboard 7 by the fixing also connection shaft seat 4 of rivet 5, and axle bed 4 is connected by axis hole 6 and fan shaft.
When this draught fan impeller uses, because blade design becomes hollow wedge, and sharf radial center is symmetrical, thus during High Rotation Speed, blade surface has centrifugal self purification under centrifugal action, make dust be subject to centrifugal action and cannot adhere to, dynamic, the static equilibrium of impeller would not be affected like this, more can not accumulate dust; The technological scheme of this blade structure, be particularly suitable for end plate distance before and after impeller large, namely impeller thickness is large especially, and the required delivery air amount also large blower fan of king-sized wide impeller adopts.
Dish backboard due to rigidity reinforced, stress dispersion, elastic buffer improve and shape stability also significantly improve, thus bearing capacity can be enhanced about more than once on common flat backboard basis.Because backboard almost carries whole fans load, understand more durable so dish made by backboard, the wheel hub of truck is because have disc structure, so bearing capacity strengthens, also more durable.
Above-mentioned just preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Any those of ordinary skill in the art, when not departing from technical solutions of the utility model scope, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (1)
1. blade is wedge shape, backboard is the anti-laying dust draught fan impeller of dish, comprises impeller backboard, impeller panel and blade, it is characterized in that: vane collocation becomes that impeller shaft is radial, centrosymmetric hollow wedge, and impeller backboard be dish-shaped; Hollow wedge blade connects impeller panel and is welded to form impeller bodies with dish-shaped impeller backboard; Impeller panel is provided with intake grill, dish-shaped impeller backboard by the fixing also connection shaft seat of rivet, and axle bed is connected by axis hole and fan shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571469.0U CN204783826U (en) | 2015-08-03 | 2015-08-03 | What blade was wedge, backplate for dish prevents laying dust fan wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571469.0U CN204783826U (en) | 2015-08-03 | 2015-08-03 | What blade was wedge, backplate for dish prevents laying dust fan wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783826U true CN204783826U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520571469.0U Expired - Fee Related CN204783826U (en) | 2015-08-03 | 2015-08-03 | What blade was wedge, backplate for dish prevents laying dust fan wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963891A (en) * | 2015-08-03 | 2015-10-07 | 吉首大学 | Dirt retention prevention draught fan impeller with wedge-shaped blades and disk-shaped back plate |
-
2015
- 2015-08-03 CN CN201520571469.0U patent/CN204783826U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963891A (en) * | 2015-08-03 | 2015-10-07 | 吉首大学 | Dirt retention prevention draught fan impeller with wedge-shaped blades and disk-shaped back plate |
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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 |
Granted publication date: 20151118 Termination date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |