CN204458524U - Blower fan bonnet - Google Patents
Blower fan bonnet Download PDFInfo
- Publication number
- CN204458524U CN204458524U CN201520048624.0U CN201520048624U CN204458524U CN 204458524 U CN204458524 U CN 204458524U CN 201520048624 U CN201520048624 U CN 201520048624U CN 204458524 U CN204458524 U CN 204458524U
- Authority
- CN
- China
- Prior art keywords
- stiffening rib
- lug boss
- blower fan
- changeover portion
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of blower fan bonnet, comprise the body of rounded tubular, the through hole passed for rotating shaft is provided with in the middle part of described body, described body is provided with bearings mounted lug boss, lug boss is provided with the hole communicated with through hole, body is provided with stiffening rib, and stiffening rib is on the outer wall being located at lug boss.This blower fan rear cover structure intensity is large, not fragile.
Description
Technical field
The utility model relates to a kind of bonnet, and more particularly, it relates to a kind of blower fan bonnet.
Background technique
Blower fan is that the custom of China to gas compression and gas conveying machinery is called for short, and usually said blower fan comprises ventilator, blower, wind-driven generator.Gas compression and gas conveying machinery are that the mechanical energy rotated is converted to gas pressure energy and kinetic energy, and the machinery that gas is transferred out.
Blower fan bonnet is fixed on flow blower casing rear portion, plays on the one hand the effect of closed fan rotor and stator, is used to stationary axle on the other hand, blower fan bonnet can be arranged one for axle through the through hole gone, in through hole can pressing bearing.
Application number is: the Chinese patent of 201320298512.1, disclose a kind of radiating type back cover of motor, although it is provided with stiffening rib on bonnet body, but what these stiffening ribs were mainly strengthened is bonnet body, a good reinforing function can not be played to that lug boss bearings mounted, like this when pressing bearing, because bearing firmly fills in the mounting hole of lug boss, if do not carry out a reinforing function to lug boss, when pressing bearing, lug boss is easily squeezed power and damaging.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of blower fan bonnet, and this blower fan rear cover structure intensity is large, not fragile.
For achieving the above object, the utility model provides following technological scheme: a kind of blower fan bonnet, comprise the body of rounded tubular, the through hole passed for rotating shaft is provided with in the middle part of described body, described body is provided with bearings mounted lug boss, lug boss is provided with the hole communicated with through hole, and body is provided with stiffening rib, and stiffening rib is on the outer wall being located at lug boss.
The utility model is preferred: described lug boss is towards the opposite side of fan blade.
The utility model is preferred: the height of described stiffening rib is not less than the height of lug boss.
The utility model is preferred: described body comprises the changeover portion of body, the panel be connected with lug boss and connection pipe body and lug boss, and in the form of a ring, the cross section of changeover portion is in " U " shape for changeover portion.
The utility model is preferred: changeover portion is protruding towards fan blade opposite side, and one end of described stiffening rib is on the sidewall being located at lug boss, and the other end is to being located on changeover portion.
The utility model is preferred: the exterior edge face of described stiffening rib is from lug boss side to changeover portion lopsidedness.
The utility model is preferred: described stiffening rib comprises the first stiffening rib group and the second stiffening rib group, and the Rib Thickness of the first stiffening rib group is less than the Rib Thickness of the second stiffening rib group.
The utility model is preferred: the first stiffening rib group and the second stiffening rib group are all evenly arranged around through hole center, and the stiffening rib of described first stiffening rib group and the stiffening rib of the second stiffening rib group are arranged alternately.
Compared with prior art, the beneficial effects of the utility model are: stiffening rib is on the sidewall being located at lug boss, such stiffening rib also can play the effect of a structural strengthening to lug boss, make convex structure intensity larger, like this when pressing bearing, the lug boss power that is squeezed is not fragile.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model blower fan bonnet embodiment;
Fig. 2 is the sectional view of A-A in Fig. 1;
Fig. 3 is the rear view of the utility model blower fan bonnet embodiment.
Reference character: 1, body; 2, through hole; 3, lug boss; 4, stiffening rib; 5, body; 6, panel; 7, changeover portion; 8, the first stiffening rib group; 9, the second stiffening rib group.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model blower fan bonnet embodiment is described further.
A kind of blower fan bonnet, comprise the body 1 of rounded tubular, the through hole 2 passed for rotating shaft is provided with in the middle part of described body 1, described body 1 is provided with bearings mounted lug boss 3, lug boss 3 is provided with the hole communicated with through hole 2, body 1 is provided with stiffening rib 4, and stiffening rib 4 is on the sidewall being located at lug boss 3.Stiffening rib 4 is on the outer wall being located at lug boss 3, such stiffening rib 4 can bear the extruding force that lug boss 3 is subject to, stiffening rib 4 also can play the effect of a structural strengthening to lug boss 3, make lug boss 3 structural strength larger, like this when pressing bearing, lug boss 3 power that is squeezed is not fragile.
Described lug boss 3 is towards the opposite side of fan blade.Such setting, lug boss 3 can to body 1 play one protection effect, make body 1 not easily break by foreign object, lug boss 3 is more abundant not fragile, and lug boss 3 is arranged towards the opposite side of fan blade, makes the structural strength of whole bonnet larger.
The height of described stiffening rib 4 is not less than the height of lug boss 3.Such bearing is at the beginning when press-fiting toward lug boss 3, and stiffening rib 4 just can play a role, and the protective action of stiffening rib 4 pairs of lug bosses 3 is better, makes the structural strength of whole bonnet larger.
Described body 1 comprises the changeover portion 7 of body 5, the panel 6 be connected with lug boss 3 and connection pipe body 5 and lug boss 3, and in the form of a ring, the cross section of changeover portion 7 is in " U " shape for changeover portion 7.The setting that changeover portion 7 is such, blower fan is when work, changeover portion 7 can play the effect of water conservancy diversion, the wind making to enter in blower fan can by the changeover portion 7 diversed exhaust outlet place to blower fan rapidly, and make the working efficiency of blower fan high, changeover portion 7 is U-shape, body 5 is made to have certain elasticity with the joint of panel 6, such body 1 is in stressed, and body 1 is not easily fractureed damage, strengthens the intensity of integral body 1.
Changeover portion 7 is protruding towards fan blade opposite side, and one end of described stiffening rib 4 is on the sidewall being located at lug boss 3, and the other end is to being located on changeover portion 7.When pressing bearing, stiffening rib 4 can be subject to radial power, traditional stiffening rib 4 is arranged on panel 6, can only be that panel 6 bears radial power like this, panel 6 easily damages, and the other end of present stiffening rib 4 is to being located on changeover portion 7, and changeover portion 7 also can bear certain power, make panel 6 not fragile, such arranges the intensity that can strengthen whole bonnet.
The exterior edge face of described stiffening rib 4 is from lug boss 3 side to changeover portion 7 lopsidedness.Arranging so on the one hand can economization material, reduce cost of production, on the other hand, the exterior edge face of stiffening rib 4 from lug boss 3 side to changeover portion 7 lopsidedness after, make the structural strength of whole bonnet larger, stiffening rib 4 does not have too much protrusion, prevents stiffening rib 4 from easily being caused stiffening rib 4 to be broken by foreign object to colliding.
Stiffening rib 4 thickness that described stiffening rib 4 comprises the first stiffening rib group 8 and the second stiffening rib group 9, first stiffening rib group 8 is less than stiffening rib 4 thickness of the second stiffening rib group 9.The thicker rigid height of the second stiffening rib group 9, structural strength is large, rigid support can be carried out to lug boss 3, the first thinner stiffening rib group 8 is soft, flexible support can be carried out to lug boss 3, make lug boss 3 have certain amount of deformation when proof strength, such setting make lug boss 3 more difficult squeeze by bearing and break down.
First stiffening rib group 8 and the second stiffening rib group 9 are all evenly arranged around through hole 2 center, and the stiffening rib 4 of described first stiffening rib group 8 and the stiffening rib 4 of the second stiffening rib group 9 are arranged alternately.Such setting, has a combination, uniform force to the flexible support of lug boss 3 and rigid support, makes whole rear cover structure intensity larger.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a blower fan bonnet, comprise the body of rounded tubular, the through hole passed for rotating shaft is provided with in the middle part of described body, it is characterized in that: described body is provided with bearings mounted lug boss, lug boss is provided with the hole communicated with through hole, body is provided with stiffening rib, and stiffening rib is on the outer wall being located at lug boss.
2. blower fan bonnet according to claim 1, is characterized in that: described lug boss is towards the opposite side of fan blade.
3. blower fan bonnet according to claim 2, is characterized in that: the height of described stiffening rib is not less than the height of lug boss.
4. blower fan bonnet according to claim 1, is characterized in that: described body comprises the changeover portion of body, the panel be connected with lug boss and connection pipe body and lug boss, and in the form of a ring, the cross section of changeover portion is in " U " shape for changeover portion.
5. blower fan bonnet according to claim 4, is characterized in that: changeover portion is protruding towards fan blade opposite side, and one end of described stiffening rib is on the sidewall being located at lug boss, and the other end is to being located on changeover portion.
6. blower fan bonnet according to claim 5, is characterized in that: the exterior edge face of described stiffening rib is from lug boss side to changeover portion lopsidedness.
7. blower fan bonnet according to claim 1, is characterized in that: described stiffening rib comprises the first stiffening rib group and the second stiffening rib group, and the Rib Thickness of the first stiffening rib group is less than the Rib Thickness of the second stiffening rib group.
8. blower fan bonnet according to claim 7, is characterized in that: the first stiffening rib group and the second stiffening rib group are all evenly arranged around through hole center, and the stiffening rib of described first stiffening rib group and the stiffening rib of the second stiffening rib group are arranged alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048624.0U CN204458524U (en) | 2015-01-24 | 2015-01-24 | Blower fan bonnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048624.0U CN204458524U (en) | 2015-01-24 | 2015-01-24 | Blower fan bonnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458524U true CN204458524U (en) | 2015-07-08 |
Family
ID=53665418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520048624.0U Expired - Fee Related CN204458524U (en) | 2015-01-24 | 2015-01-24 | Blower fan bonnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240394A (en) * | 2015-11-09 | 2016-01-13 | 富乐压铸(太仓)有限公司 | Shaft head |
-
2015
- 2015-01-24 CN CN201520048624.0U patent/CN204458524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240394A (en) * | 2015-11-09 | 2016-01-13 | 富乐压铸(太仓)有限公司 | Shaft head |
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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: 20150708 Termination date: 20170124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |