CN105065325A - Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate - Google Patents
Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate Download PDFInfo
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- CN105065325A CN105065325A CN201510464834.2A CN201510464834A CN105065325A CN 105065325 A CN105065325 A CN 105065325A CN 201510464834 A CN201510464834 A CN 201510464834A CN 105065325 A CN105065325 A CN 105065325A
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Abstract
The invention discloses a dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and a disk-shaped back plate. The fan propeller comprises the propeller back plate, a propeller panel and the blades, wherein the blades are in the shape of a reverse droplet, arranged in the radial direction of a propeller shaft and are in central symmetry; the propeller back plate is in the shape of a disk; the hollow reverse-droplet-shaped blades are connected with the propeller panel and welded to the disk-shaped propeller back plate, so that a propeller body is formed; the propeller panel is provided with an air inlet; the disk-shaped propeller back plate is fixed through rivets and connected with a shaft base; and the shaft base is in matched connection with a fan shaft through a shaft hole. When the fan propeller is in use, because the blades are hollow and in the shape of the reverse droplet, and blade shafts are in radial central symmetry; when the blades rotate at a high speed, the surfaces of the blades have a self-cleaning effect under the action of centrifugal force, dust cannot adhere to the blades due to centrifugal force and does not accumulate, and the dust-accumulation-proof fan propeller is particularly applicable to a wide-impeller large fan which has the large distance between a front end plate and a rear end plate of an impeller, and is particularly high in quantity of needed conveyed air; and due to the disk-shaped back plate, the compressive strength of the fan is improved, and the service life of the fan is prolonged.
Description
Technical field
The present invention relates to a kind of draught fan impeller, specifically refer to the anti-laying dust draught fan impeller that blade is anti-water-drop-shaped, 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.
Summary of the invention
The technical problem to be solved in the present invention 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 anti-water-drop-shaped, backboard is dish.
For overcoming the deficiencies in the prior art, the present invention takes following technological scheme:
The anti-laying dust draught fan impeller that blade is anti-water-drop-shaped, backboard is dish, comprises impeller backboard, impeller panel and blade, it is characterized in that: vane collocation becomes impeller shaft radial direction, the anti-water-drop-shaped of centrosymmetric hollow, and impeller backboard is dish; Hollow anti-water-drop-shaped 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.
The anti-water-drop-shaped blade of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
When draught fan impeller of the present invention uses, because blade design becomes the anti-water-drop-shaped of hollow, 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, beneficial effect of the present invention is also:
Blade design becomes the anti-water-drop-shaped of hollow, 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 the anti-water-drop-shaped of hollow, 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.
The anti-water-drop-shaped blade of hollow has streamline profile, and blade air steadily skimming over property is fabulous, so fan operation noise is little especially, improves working environment.
Blade ingehious design is become the anti-water-drop-shaped of hollow by the present invention, 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 invention.
Fig. 2 is cross-sectional view of the present invention.
In figure, each label represents:
1, anti-water-drop-shaped 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 present invention is illustrated further.
Blade is anti-water-drop-shaped 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, the anti-water-drop-shaped of centrosymmetric hollow, and impeller backboard 7 be dish-shaped; Hollow anti-water-drop-shaped 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.
The anti-water-drop-shaped blade 1 of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
When this draught fan impeller uses, because blade design becomes the anti-water-drop-shaped of hollow, 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 invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (2)
1. blade is anti-water-drop-shaped, 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, the anti-water-drop-shaped of centrosymmetric hollow, and impeller backboard be dish-shaped; Hollow anti-water-drop-shaped 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.
2. blade is anti-water-drop-shaped according to claim 1, backboard is the anti-laying dust draught fan impeller of dish, it is characterized in that: the anti-water-drop-shaped blade of described hollow is synthesized by two panels Curved surface metal soldering group, and has symmetrical streamline profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464834.2A CN105065325A (en) | 2015-08-03 | 2015-08-03 | Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464834.2A CN105065325A (en) | 2015-08-03 | 2015-08-03 | Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate |
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| Publication Number | Publication Date |
|---|---|
| CN105065325A true CN105065325A (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464834.2A Pending CN105065325A (en) | 2015-08-03 | 2015-08-03 | Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545826A (en) * | 2016-02-25 | 2016-05-04 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with safety net |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412783A (en) * | 1981-10-08 | 1983-11-01 | Thermo King Corporation | Centrifugal fan wheel with changeable pitch blades |
| US6183201B1 (en) * | 1999-09-09 | 2001-02-06 | George Butler, III | Safety blade for ceiling fan |
| CN201650860U (en) * | 2009-10-29 | 2010-11-24 | 福建南方路面机械有限公司 | Draught fan impeller mechanism for bitumen regeneration facility |
| CN203730349U (en) * | 2014-03-06 | 2014-07-23 | 株洲联诚集团有限责任公司 | Centralized ventilation device for tractive electric drive ventilation system of electric wheel dump truck |
| CN104389815A (en) * | 2014-11-27 | 2015-03-04 | 南阳防爆集团股份有限公司 | Centrifugal fan for motor with high efficiency, low noise and ultrahigh specific speed |
| CN204783824U (en) * | 2015-08-03 | 2015-11-18 | 吉首大学 | Blade is of drop shape for turning over, laying dust fan wheel is prevented for dish to backplate |
-
2015
- 2015-08-03 CN CN201510464834.2A patent/CN105065325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412783A (en) * | 1981-10-08 | 1983-11-01 | Thermo King Corporation | Centrifugal fan wheel with changeable pitch blades |
| US6183201B1 (en) * | 1999-09-09 | 2001-02-06 | George Butler, III | Safety blade for ceiling fan |
| CN201650860U (en) * | 2009-10-29 | 2010-11-24 | 福建南方路面机械有限公司 | Draught fan impeller mechanism for bitumen regeneration facility |
| CN203730349U (en) * | 2014-03-06 | 2014-07-23 | 株洲联诚集团有限责任公司 | Centralized ventilation device for tractive electric drive ventilation system of electric wheel dump truck |
| CN104389815A (en) * | 2014-11-27 | 2015-03-04 | 南阳防爆集团股份有限公司 | Centrifugal fan for motor with high efficiency, low noise and ultrahigh specific speed |
| CN204783824U (en) * | 2015-08-03 | 2015-11-18 | 吉首大学 | Blade is of drop shape for turning over, laying dust fan wheel is prevented for dish to backplate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545826A (en) * | 2016-02-25 | 2016-05-04 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with safety net |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |