CN201475039U - Centrifugal fan impeller - Google Patents
Centrifugal fan impeller Download PDFInfo
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- CN201475039U CN201475039U CN2009201592839U CN200920159283U CN201475039U CN 201475039 U CN201475039 U CN 201475039U CN 2009201592839 U CN2009201592839 U CN 2009201592839U CN 200920159283 U CN200920159283 U CN 200920159283U CN 201475039 U CN201475039 U CN 201475039U
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- wheel disc
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Abstract
The utility model discloses a centrifugal fan impeller, which comprises an upper wheel disc, a plurality of blades, a lower wheel disc and a plurality of rivets, wherein the upper wheel disc is provided with a plurality of upper wheel disc via holes, each blade comprises an arc-shaped blade main blade body, an upper edge and a lower edge with a certain width are bent to the transmitting direction of an arc-shaped radius from the top portion and the bottom portion of the main blade body, the upper edge is provided with a plurality of upper edge blade via holes, the lower edge is provided with a plurality of lower edge blade via holes, the lower wheel disc is provided with a plurality of lower wheel disc via holes, the rivets pass through the upper wheel disc via holes and the upper edge blade via holes on the blades to lead the upper wheel disc to fixedly connect with the blades, and the rivets pass through the lower wheel disc via holes and the lower edge blade via holes on the blades to the lower wheel disc to fixedly connect with the blades. The centrifugal fan impeller uses the design that the blades are provided with the upper edge and the lower edge, a boss is positioned, the blades, the upper and the lower wheel discs are fixed by the rivets to achieve the purpose of firmly connecting and fixing impeller components, and greatly reduces the production cost.
Description
[technical field]
The utility model relates to a kind of centrifugal fan impeller, refers in particular to the impeller of a kind of back to centrifugal fan.
[background technique]
Centrifugal fan mainly is made up of parts such as impeller, casing, air intake inlet, axle and bearings.Wherein impeller then is made of multi-disc blade, last wheel disc and following wheel disc.When the impeller of blower fan is rotated by motor drives, be full of gas between blade high speed rotating thereupon under the promotion of blade, make gas obtain big energy, under the effect of inertial centrifugal force, get rid of toward impeller outer edge, the pressure energy of gas and kinetic energy flow out from casing after increasing, the impeller middle part then forms negative pressure, sucks gas continually and replenished under the atmospheric pressure effect.Impeller is to be made of metal, and for bigger back to centrifugal blower of size, impeller diameter because requirement of strength is bigger, generally adopts metallic material to make between 200～900mm.Generally can take impeller is divided into the mode that three parts are promptly separated the die sinking moulding, then upper and lower wheel disc and blade are connected and fixed.
See also Fig. 1, the mode that wheel disc 30 was connected and fixed under blade 10 and last wheel disc 20 reached in the prior art is to use welding manner, promptly on last wheel disc 20 and following wheel disc 30, have welding square hole 40, the square hole position of corresponding upper and lower wheel disc is provided with card angle 50 on the blade 10, the card angle 50 of every blade 10 is inserted among the welding square hole 40 of corresponding upper and lower wheel disc, then by welding with blade 10 and last wheel disc 20 and down wheel disc 30 be connected and fixed.Adopt this mode, welding process requirement is than higher, and required cost is bigger, and with regard to domestic present technology, the requirement that does not reach IWS International Workman Standard.
The technical problem that above-mentioned existing centrifugal fan impeller exists needs to be resolved hurrily.
[summary of the invention]
Technical problem to be solved in the utility model provides a kind of blade structure by the change centrifugal fan impeller and realizes that blade and upper and lower wheel disc firmly are connected and fixed.
In order to solve the problems of the technologies described above, the utility model proposes following technological scheme:
A kind of centrifugal fan impeller, comprise wheel disc, the multi-disc blade, following wheel disc and a plurality of rivet, offer a plurality of wheel disc through holes of going up on the last wheel disc, the blade main leaf body of every leaf packet bracket, by main leaf body top and bottom respectively to the top edge with certain width and the lower limb of arc radius emission direction bending, top edge is provided with a plurality of top edge blade through holes, lower limb is provided with a plurality of lower limb blade through holes, following wheel disc is offered a plurality of wheel disc through holes down, rivet passes the top edge blade through hole on wheel disc through hole and the blade and wheel disc and blade is connected and fixed, and rivet passes down the lower limb blade through hole on wheel disc through hole and the blade and wheel disc and blade are connected and fixed.
Further, the blade lower limb is provided with a plurality of positioning holes, and following wheel disc is provided with a plurality of location convex, locatees convex when mounted and protrudes in the positioning hole and make blade and following wheel disc positioning and fixing.
Further, last wheel disc comprises the circular curved flanges of taking turns disc bottom edge and being the extension of radius-zoom-out trend by the root edge inward flange to blower fan outside projection and edge of level, the blade top edge is provided with first end and corresponding second end of going up the extension of wheel disc curved flanges arc shape overbending direction that along continuous straight runs extends, first end of top edge leans on the root edge of wheel disc on the level, second end of top edge agrees with mutually with last wheel disc curved flanges arc kink shape, and leans with this flange.
Further, last wheel disc through hole is the distribution of many row's camber line shapes by flange edge is initial towards the root edge outward edge, each row goes up has part to be distributed on the wheel flange in the wheel disc through hole, there is part to be distributed on the wheel disc bottom edge, corresponding top edge blade pass bore portion is distributed in first end, and part is distributed in second end.
Further, following wheel disc is the horizontal circle ring-type, and the following wheel disc through hole of offering on it is arranges the shape distribution, and several of every row wheel disc through hole down are the distribution of camber line shape by ring outer rim in the following wheel disc is initial towards following wheel disc outer annular edge edge.
Further, described location convex is darted between per two following wheel disc through holes that the wheel disc through hole is adjacent under every row.The positioning hole of blade lower limb is arranged between two adjacent blade through holes of same lower limb.
Further, impeller has six blades.
Further, last wheel disc is provided with six rows and every row altogether and is provided with three altogether and goes up the wheel disc through holes, and every blade top edge also correspondence is provided with three top edge through holes and is connected and fixed wheel disc and blade by rivet.
Further, following wheel disc is provided with six rows altogether and every row is provided with three following wheel disc through holes altogether, and every blade lower limb also correspondence is provided with three lower limb through holes and is connected and fixed down wheel disc and blade by rivet.
Further, be provided with two location of the every row of six rows convex on the following wheel disc altogether, corresponding blade lower limb also offers two positioning holes.
Compared with prior art, the utility model utilizes blade that top edge and lower limb are set, and the design of location convex and rivet stator blade and upper and lower wheel disc can reach the purpose that firmly is connected and fixed between the impeller assembly fully, and significantly reduced cost of production.
[description of drawings]
Fig. 1 is the three-dimensional combination figure of prior art centrifugal fan impeller.
Fig. 2 is the three-dimensional explosive view of the utility model centrifugal fan impeller.
Fig. 3 is the three-dimensional combination figure of the utility model centrifugal fan impeller.
[embodiment]
Understand easily, according to the technical solution of the utility model, do not changing under the connotation of the present utility model, but one of ordinary skill in the art can propose the multiple mode of structure and the implementation of mutual alternative.Therefore, following embodiment and accompanying drawing only are the exemplary illustrations to the technical solution of the utility model, and should not be considered as of the present utility model all or be considered as qualification or restriction to technical solutions of the utility model.
Need to prove, describe below that the word that uses " is gone up (or top) " and orientation such as " following (or ends) " refer in the accompanying drawing upper and lower to, word " interior " and " outward " refer to respectively towards or away from drawing or figure in the direction of specific features geometrical center.
See also Fig. 2, the utility model centrifugal fan impeller comprises wheel disc 60, multi-disc blade 70, following wheel disc 80 and a plurality of rivet 90.In the present embodiment, have 6 blades.Only respectively illustrating to draw a rivet near the last wheel disc 60 and near the following wheel disc 80 in Fig. 2, actual should have a plurality of rivets.
The similar of last wheel disc 60 comprises the circular wheel disc bottom edge 61 of going up of level in the shape of a no cap, and is protruding also along being the curved flanges 62 that radius-zoom-out trend is extended to the impeller outside by root edge 61 inward flanges.Offering wheel disc through hole 63 on six rows on the last wheel disc 60 altogether, every row is initial towards the curved distribution of 61 root edge outward edges by flange 62 edges, every exhausting hole has three last wheel disc through holes 63, wherein has a last wheel disc through hole to be distributed on the flange 62, goes up the wheel disc through holes for two and is distributed on the root edge 61.
Every blade 70 comprises the blade main leaf body 71 that is bowing, by main leaf body 71 tops and bottom respectively to the top edge with certain width 72 and the lower limb 73 of arc radius emission direction bending.Top edge 72 is not complete horizontal extension, and it is provided with first end, the 720 corresponding root edges 61 of going up wheel disc 60 is that along continuous straight runs extends, and second end, the 721 corresponding wheel disc curved flanges 62 arc shape overbending directions of going up extend.First end 720 of top edge 72 offers and offers a top edge blade through hole 723 on two top edge through holes, 723, the second ends 721.Lower limb 73 horizontal and its on offer equally distributed the first, the second and the 3rd totally three lower limb blade through holes 733 respectively.Between the first and second adjacent blade through holes 733 of same lower limb 73, and also be provided with two positioning holes 734 between the second and the 3rd blade through hole 733.
Following wheel disc 80 is the horizontal circle ring-type of hollow, offers six on it and arranges wheel disc through hole 83 down, and every row has three following wheel disc through holes 83 to be the distribution of camber line shape by ring outer rim in the following wheel disc is initial towards following wheel disc outer annular edge edge.Between per two following wheel disc through holes 83 of every row, be equipped with a location convex 84 so that locate with the positioning hole 734 of blade lower limb 72.
See also Fig. 3, during assembling, will descend the location convex 84 on the wheel disc 80 to aim at and protrude in the positioning hole 734 of six blade 70 lower limbs 73 earlier, at this moment the lower limb blade through hole 83 on the lower limb blade through hole 733 corresponding wheel discs 80 down.With the last wheel disc through hole 63 on the root edge 61 of the 723 corresponding upward wheel discs 60 of the blade through hole on first end 720 of six blades, 70 top edges 72, the blade through hole 723 corresponding last wheel disc through holes of going up on wheel disc 60 flanges 63 on second end 721 of blade 70 top edges 72, this moment, first end of top edge 72 leaned on the root edge 61 of wheel disc on the level 60, second end 721 of top edge just agrees with mutually with last wheel disc curved flanges 62 arc kink shapes, the flange 62 of itself and last wheel disc is tightly against living, this kind design has reduced the earial drainage loss of inlet air flow, and has further increased the intensity of blade 70.The design technology of the location convex on the following wheel disc is simple, and it is convenient that impeller sets sets the position.
Again rivet 90 is passed down wheel disc through hole 83 and blade through hole 733 and rivet and blade 70 and following wheel disc 80 are fixed.Rivet 90 passed wheel disc through hole 63 and blade through hole 723 and rivet and blade 70 is fixing with last wheel disc 60.Utilize blade that top edge and lower limb are set, and the design of location convex and rivet stator blade and upper and lower wheel disc can reach the purpose that firmly is connected and fixed between the impeller assembly fully, and significantly reduce cost of production.
In sum, for the person of ordinary skill of the art, that is done under instruction of the present utility model changes at equivalence of the present utility model, must be included in the scope that the utility model claim advocated.
Claims (10)
1. centrifugal fan impeller, comprise wheel disc, the multi-disc blade, following wheel disc and a plurality of rivet, it is characterized in that: go up and offer a plurality of wheel disc through holes of going up on the wheel disc, the blade main leaf body of every leaf packet bracket, by main leaf body top and bottom respectively to the top edge with certain width and the lower limb of arc radius emission direction bending, top edge is provided with a plurality of top edge blade through holes, lower limb is provided with a plurality of lower limb blade through holes, following wheel disc is offered a plurality of wheel disc through holes down, rivet passes the top edge blade through hole on wheel disc through hole and the blade and wheel disc and blade is connected and fixed, and rivet passes down the lower limb blade through hole on wheel disc through hole and the blade and wheel disc and blade are connected and fixed.
2. centrifugal fan impeller as claimed in claim 1 is characterized in that: the blade lower limb is provided with a plurality of positioning holes, and following wheel disc is provided with a plurality of location convex, locatees convex when mounted and protrudes in the positioning hole and make blade and following wheel disc positioning and fixing.
3. centrifugal fan impeller as claimed in claim 2, it is characterized in that: go up the circular disc bottom edge and protruding to the blower fan outside of taking turns that wheel disc comprises level also along being the curved flanges that radius-zoom-out trend is extended by the root edge inward flange, the blade top edge is provided with first end and corresponding second end of going up the extension of wheel disc curved flanges arc shape overbending direction that along continuous straight runs extends, first end of top edge leans on the root edge of wheel disc on the level, second end of top edge agrees with mutually with last wheel disc curved flanges arc kink shape, and leans with this flange.
4. centrifugal fan impeller as claimed in claim 3, it is characterized in that: go up the wheel disc through hole and be the distribution of many row's camber line shapes towards the root edge outward edge by flange edge is initial, each row goes up has part to be distributed on the wheel flange in the wheel disc through hole, there is part to be distributed on the wheel disc bottom edge, corresponding top edge blade pass bore portion is distributed in first end, and part is distributed in second end.
5. centrifugal fan impeller as claimed in claim 4, it is characterized in that: following wheel disc is the horizontal circle ring-type, the following wheel disc through hole of offering on it is arranges the shape distribution, and several of every row wheel disc through hole down are the distribution of camber line shape by ring outer rim in the following wheel disc is initial towards following wheel disc outer annular edge edge.
6. centrifugal fan impeller as claimed in claim 5, it is characterized in that: described location convex is darted between per two following wheel disc through holes that the wheel disc through hole is adjacent under every row, and the positioning hole of blade lower limb is arranged between two adjacent blade through holes of same lower limb.
7. centrifugal fan impeller as claimed in claim 6 is characterized in that: have six blades.
8. centrifugal fan impeller as claimed in claim 7 is characterized in that: go up wheel disc and six rows and every row are set altogether are provided with three altogether and go up the wheel disc through holes, every blade top edge also correspondence is provided with three top edge through holes and is connected and fixed wheel disc and blade by rivet.
9. centrifugal fan impeller as claimed in claim 8 is characterized in that: following wheel disc is provided with six rows altogether and every row is provided with three following wheel disc through holes altogether, and every blade lower limb also correspondence is provided with three lower limb through holes and is connected and fixed down wheel disc and blade by rivet.
10. centrifugal fan impeller as claimed in claim 9 is characterized in that: be provided with two location of the every row of six rows convex on the following wheel disc altogether, corresponding blade lower limb also offers two positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201592839U CN201475039U (en) | 2009-06-17 | 2009-06-17 | Centrifugal fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201592839U CN201475039U (en) | 2009-06-17 | 2009-06-17 | Centrifugal fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475039U true CN201475039U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201592839U Expired - Lifetime CN201475039U (en) | 2009-06-17 | 2009-06-17 | Centrifugal fan impeller |
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| Country | Link |
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| CN (1) | CN201475039U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072194A (en) * | 2010-10-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Novel centrifugal impeller blade |
| CN102536845A (en) * | 2012-01-20 | 2012-07-04 | 张子林 | Modified submersible pump for well |
| CN102913480A (en) * | 2012-11-12 | 2013-02-06 | 胡国贤 | Fan blade of wind suction and exhaust fan |
| CN107664139A (en) * | 2017-09-28 | 2018-02-06 | 镇江三联泵业机械成套设备有限公司 | The impeller of blade easy to disassemble |
| CN107956738A (en) * | 2016-10-18 | 2018-04-24 | 泰州市飞速消防设备有限公司 | A kind of Novel wind spray wind wheel |
| CN110630532A (en) * | 2019-09-17 | 2019-12-31 | 科比传动技术（上海）有限公司 | Centrifugal heat dissipation device and water pump all-in-one machine comprising same |
| CN110860652A (en) * | 2019-11-15 | 2020-03-06 | 广东阿诺诗厨卫有限公司 | Combined impeller manufacturing method and impeller |
-
2009
- 2009-06-17 CN CN2009201592839U patent/CN201475039U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072194A (en) * | 2010-10-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Novel centrifugal impeller blade |
| CN102536845A (en) * | 2012-01-20 | 2012-07-04 | 张子林 | Modified submersible pump for well |
| CN102913480A (en) * | 2012-11-12 | 2013-02-06 | 胡国贤 | Fan blade of wind suction and exhaust fan |
| CN107956738A (en) * | 2016-10-18 | 2018-04-24 | 泰州市飞速消防设备有限公司 | A kind of Novel wind spray wind wheel |
| CN107664139A (en) * | 2017-09-28 | 2018-02-06 | 镇江三联泵业机械成套设备有限公司 | The impeller of blade easy to disassemble |
| CN110630532A (en) * | 2019-09-17 | 2019-12-31 | 科比传动技术（上海）有限公司 | Centrifugal heat dissipation device and water pump all-in-one machine comprising same |
| CN110860652A (en) * | 2019-11-15 | 2020-03-06 | 广东阿诺诗厨卫有限公司 | Combined impeller manufacturing method and impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |