CN201133377Y

CN201133377Y - Air blower blade wheel structure

Info

Publication number: CN201133377Y
Application number: CNU2007201253667U
Authority: CN
Inventors: 陈耀乾
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-15
Filing date: 2007-08-15
Publication date: 2008-10-15
Anticipated expiration: 2017-08-15

Abstract

The utility model relates to an impeller structure of a blower, and the blower comprises a cartridge type external box the two ends of which are an air inlet and air outlet; the vane of an impeller is driven by a motor; with the rotation of the vane, air is input to the air inlet and output from the air outlet; the impeller structure comprises a hub seat with an upper hub and a lower hub, and a plurality of vanes; a plurality of corresponding grooves are respectively arranged in the upper hub body and the lower hub body with an equal angle, and a dentate section is positioned in the inner side of the groove; each vane is equipped with a cone-type fixed part, so the fixed part can be clamped in the grooves corresponding to the upper hub and the lower hub; a dentate exterior is positioned around the taper bottom edge of the fixed part, which can be respectively engaged with the dentate part of the upper hub and the lower hub; with the impeller structure, the vane clamped in the grooves can have better steadiness, and vibration or noise can be avoided and the assembly of the vanes or the adjustment of the angle are convenient.

Description

The blade wheel structure of gas fan

Technical field

The utility model relates to a kind of blade wheel structure, refer to that especially a kind of blade of impeller is the air feeder vane wheel structure of truncated cone shape.

Background technique

Press, axial fan, it is the general prior art of field of air conditioning, and the blade of the general impeller of structure of its gas fan designs for asymmetric, so that impeller does not have the air-supply effect when having the counter-rotating of air-supply effect when just changeing, and the package assembly of gas fan be designed to respectively at the fixing part of its blade and hub body can be corresponding mutually and with public affairs, female taper external form that cooperates, when assembling blade and hub body, need take a long time the angular orientation of calibration one by one blade, and the degree of balance after the assembling, stability need be proofreaied and correct with conformity again, makes up the danger that not firm meeting causes leaf abscission; In actual environment such as tunnel, consider vehicle direct of travel and discharge directions, and the existing axial fan of the single air supply direction of tool is set, or consider that climatic environmental factor produces the wind direction of different change direction in Various Seasonal, different periods of consideration such as spike or non-spike period produce the situation of different wagon flow directions again, for a gas fan of the single air supply direction of tool, the air draft poor effect that is produced, can cost be set increase, operating cost improves relatively; Again after existing axial fan is through long-time the use, also new or proofread and correct blade as need, can be because blade abrasion factor make to reinstall with correction and need the long period or the danger that in use comes off, and cause time, money waste and danger; And the utility model promptly is a design improved at the shortcoming of prior art and in addition.

Summary of the invention

The utility model main purpose is to provide a kind of blade wheel structure of gas fan, in order to overcome above-mentioned technological deficiency.

The technical solution adopted in the utility model is, a kind of blade wheel structure of gas fan is provided, described gas fan comprises a cartridge type outer container, its two ends are respectively a wind inlet and exhaust outlet, its inside is to utilize a motor to drive the blade rotation of an impeller, entered to be sent by exhaust outlet by wind inlet again and reach the gas fan function to order about air by blade rotation, described impeller comprises a hub seat and plural pieces blade, wherein:

Described hub seat, comprise a upper hub body and hub body once, and upper and lower hub body is mutually corresponding sealed, and upper and lower again hub body inside equal angles and radial shape is respectively arranged and is provided with a plurality of corresponding groove up and down, and is respectively equipped with a tooth-like part on the inner side surface of the nearly hub body of described groove central shaft;

Described blade comprises a blade part and a fixing part, the cross section of wherein said fixing part is coniform and corresponding to the groove shapes of described upper and lower hub body, be provided with an annular dentation external form around the circular cone root edge of described fixing part again, and described annular dentation external form and the interior corresponding engagement of tooth-like part of the groove of upper and lower casing;

The fixing part correspondence of described blade is inserted in each groove of described upper and lower hub body, and the dentation external form that makes described fixing part simultaneously and relative engagement of tooth-like part of upper and lower hub body, by lock firmware upper and lower hub body locking is integral again, makes upper and lower hub body and plural pieces vane group dress up a blade wheel structure body.

The beneficial effects of the utility model are compared with the prior art, at first, make the blade that is folded in the hub seat have preferable steadiness and rock or noise to avoid producing, and help the assembling of blade or the adjustment operation of angle;

Secondly, one identical indicating graduation is set on one bottom surface of the fixing part of blade, for when each blade is installed, making each blade can simple and easyly be positioned same setting angle, to promote efficient and the accuracy that blade is installed by the setting angle of described indicating graduation with each blade of identification;

At last, described impeller utilizes a motor driven that described impeller can be rotated forward or backwards reaching two-way air-supply effect, and promotes operation convenience and save operating cost.

Description of drawings

Fig. 1 is the utility model one embodiment's a solid combination schematic representation;

Fig. 2 is the perspective exploded view of aluminum alloy impeller of the present utility model;

Fig. 3 is the solid combination schematic representation of aluminum alloy impeller of the present utility model;

Fig. 4 is that the blade of aluminum alloy impeller of the present utility model amplifies schematic perspective view.

Description of reference numerals: 1-gas fan; The 10-outer container; The 11-leading flank; The 12-wind inlet; The 13-trailing flank; The 14-exhaust outlet; The 15-fixing frame; The 16-supporting frame; 20-safety filter screen; 30-water conservancy diversion noise reduction cone; The 40-impeller; The 41-upper hub body; The 411-groove; The 412-tooth-like part; The 413-opening; Hub body under the 42-; The 421-center; The 43-blade; The 431-fixing part; 432-dentation external form; The 433-bottom surface; The 434-scale; The 435-blade part; The 436-tail end; The 437-intermediate section; The 44-axle sleeve; The 45-bolt; The 46-nut; The 50-motor.

Embodiment

Clear and definite full and accurate for the utility model is also added, enumerate preferred embodiment now and cooperate following diagram, structure of the present utility model and technical characteristics thereof are described in detail as the back:

Please refer to Fig. 1 to shown in Figure 4, the utility model gas fan 1 is to comprise a cylinder type outer container 10, described outer container 10 is one to have the double-layer shell structure of inside and outside layer, can utilize galvanized steel plain sheet to constitute with zinc-plated punching steel plate or similar sheet material, can fill quieter material at its skin with interior interlayer, described quieter material can utilize cotton material to constitute; One wind inlet 12 is set on the leading flank 11 of described again outer container 10, an exhaust outlet 14 is set on its trailing flank 13; In addition, at least more than one support 15 can be set, gas fan 1 can be suspended by support 15 use as be suspended at the ceiling board use at outer container 10 outside appropriate locations; Described again wind inlet 12 is covered with a safety guard net 20 respectively with exhaust outlet 14 places, described safety guard net 20 can form as hexsteel or grid-like stainless steel spot welding net in the wire braiding, to prevent that foreign matter such as birds from invading in the gas fan 1 accidentally, make the wind inlet 12 of gas fan 1 and exhaust outlet 14 increase by a safety protection effect.

Between wind inlet 12 and exhaust outlet 14 inboards and the impeller 40 a water conservancy diversion noise reduction cone 30 is set respectively further again, described water conservancy diversion noise reduction cone 30 is one to have the double layer construction of inside and outside layer, can utilize galvanized steel plain sheet to constitute with zinc-plated punching steel plate or similar sheet material, can fill quieter material at its skin with interior interlayer, described quieter material can utilize cotton material to constitute, with avoid gas fan 1 go into/exit flow is subjected to stopping of motor position when flowing or gas fan 1 central position influences, and makes the air-flow shortcoming that can not smooth pass through and the running noise that reduces gas fan 1.

The bosom place of described cylinder type outer container 10 is provided with an impeller 40, described impeller 40 is to comprise a upper hub body 41, once hub body 42 and plural pieces blade 43, wherein, described upper hub body 41 is correspondingly mutually to lock into a complete hub body with following hub body 42, the inner near outer rim place of upper hub body 41 and following hub body 42 is provided with a plurality of corresponding groove 411 up and down of equal angles and radial arrangement respectively again, and each groove 411 also is provided with a corresponding opening 413; Described corresponding groove 411 up and down is to establish the fixing part 431 of blade 43 in order to tight folder, and the blade part 435 of blade 43 can outwards be protruded out by opening 413; Be respectively equipped with a ring-type tooth-like part 412 on the side within the nearly hub body central shaft of the groove 411 of upper and lower again

hub body

41,42.

The described again center 421 of hub body 42 down is sheathed axle sleeves 44, and connect a motor 50 to drive described impeller 40 rotations, described motor 50 outsides lock relatively on a plurality of supporting frames 16 that are arranged on described cylinder type outer container 10 inboards, with fixing motor 50 positions and its steadiness of increase.

Described blade 43 is to comprise a blade part 435 and a fixing part 431, wherein said fixing part 431 is to be truncated cone shape and corresponding groove 411 shapes at upper and

lower hub body

41,42, and the fixing part 431 of described truncated cone shape can closely be entrenched in the groove 411 of upper and

lower hub body

41,42; Establish tool one annular dentation external form 432 around the circular cone root edge of described again fixing part 431, and described annular dentation external form 432 can with the tooth-like part 412 corresponding engagements in the groove 411 of upper and

lower casing

41,42.

During assembling, fixing part 431 correspondences of blade 43 can be inserted in the groove 411 of upper and

lower hub body

41,42, and the dentation external form 432 that makes described fixing part 431 simultaneously and the tooth-like part 412 relative engagements of upper and

lower hub body

41,42, pass upper and lower hub body locking by lock firmware such as bolt 45, nut 46 etc. again, make upper and

lower hub body

41,42 and plural pieces blade 43 can firmly lock into the complete structure body of an impeller 40.

On the bottom surface 433 of the fixing part 431 of each blade 43 an identical indicating graduation 434 can be set again, supplying can be by the setting angle of described indicating graduation 434 with each blade 43 of identification when each blade 43 is installed, in order to do making each blade 43 can simple and easyly be positioned same setting angle, to promote efficient and the accuracy that blade 43 is installed.

The sectional shape of the blade 43 of described impeller 40 is shown in Fig. 2,3, its above and below is the symmetric type moulding, has the thin and streamline Blade Design of intermediate section 437 broads of two tail ends 436, the shape-designing of this symmetrical blade 43 mainly is in order to the change of the sense of rotation that cooperates gas fan motor 50 (just/reverse), makes the blade 43 of impeller 40 all can reach the air-supply effect when rotating forward or backwards.

Pass through said structure, and through practical laboratory test confirmation, gas fan 1 of the present utility model can improve the steadiness of the blade 43 of impeller 40 really, save operating cost, and reach integral blade 43 and adjust the convenience of operations, property and accuracy and good using effect that can two-way air-supply rapidly, with shortcomings such as good, not complicated correction operation of the blower fan stability of avoiding having now gas fan and single air supply directions.

The above only is preferred embodiment of the present utility model, only is illustrative for the utility model, and nonrestrictive; Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that the utility model claim is limited, and revise, even the equivalence change also, but all will fall in the protection domain of the present utility model.

Claims

1, a kind of blade wheel structure of gas fan, described gas fan comprises a cartridge type outer container, its two ends are respectively a wind inlet and exhaust outlet, its inside is to utilize a motor to drive the blade rotation of an impeller, enter to send by exhaust outlet again by wind inlet and reach the gas fan function to order about air by blade rotation, it is characterized in that: described impeller comprises a hub seat and plural pieces blade, wherein:

2, according to the blade wheel structure of the described gas fan of claim 1, it is characterized in that: described blade is the blade of a symmetric type moulding.

3, according to the blade wheel structure of the described gas fan of claim 2, it is characterized in that: the blade of described symmetric type moulding is the thin and streamline blades of intermediate section broad of two tail ends.

4, according to the blade wheel structure of the described gas fan of claim 1, it is characterized in that: a bottom surface of the fixing part of described blade is provided with an indicating graduation.