CN203297149U - Draught fan fixing device and draught fan comprising same - Google Patents
Draught fan fixing device and draught fan comprising same Download PDFInfo
- Publication number
- CN203297149U CN203297149U CN2013203181870U CN201320318187U CN203297149U CN 203297149 U CN203297149 U CN 203297149U CN 2013203181870 U CN2013203181870 U CN 2013203181870U CN 201320318187 U CN201320318187 U CN 201320318187U CN 203297149 U CN203297149 U CN 203297149U
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- CN
- China
- Prior art keywords
- hub
- wheel hub
- draught fan
- fixing device
- tapered sleeve
- 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 provides a draught fan fixing device and a draught fan comprising the same. The draught fan fixing device comprises a draught fan hub, an impeller and a main shaft matched with the draught fan hub, the draught fan hub comprises a hub body and a hub taper sleeve matched with the hub body, a tapered inner hole containing the hub taper sleeve is formed in the hub body, and matched threads are formed on the opposite wall faces of the hub body and the hub taper sleeve. When the draught fan fixing device is used for preventing the draught fan from working, the draught fan hub moves in the axial direction of the main shaft, the purpose of locking is achieved, and stability and safety coefficient of the draught fan are improved.
Description
Technical field
The utility model relates to a kind of machinery, relates in particular to a kind of fixing device for blower fan, and the blower fan of applying above-mentioned fixing device.
Background technique
Blower fan is that to rely on the input electric energy conversion be mechanical energy, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery.Existing blower fan generally comprises casing, and is arranged in main shaft, the impeller of casing and the axial fan hub that matches with main shaft etc.But in the using process of blower fan, due to the High Rotation Speed of impeller, axial fan hub can occur loosening by relative main shaft.And then affect the work of blower fan, even have an accident.
The model utility content
One of the purpose of this utility model is to provide a kind of fan fixing device.It has overcome in prior art, and during blower fan work, loosening problem occurs the relative main shaft of axial fan hub.
Another purpose of the present utility model is to provide a kind of blower fan of applying above-mentioned fixing device.
One of for achieving the above object, a kind of fan fixing device of the present utility model, it comprises axial fan hub, impeller, and the main shaft that matches with described axial fan hub, described axial fan hub assembly comprises wheel hub and wheel hub tapered sleeve, described wheel hub has the endoporus with tapering, on the described wheel hub conical surface relative with the wheel hub tapered sleeve, is formed with the tapped hole that matches.
As further improvement of the utility model, the thread groove that is opened on described wheel hub and wheel hub tapered sleeve forms screw, and the quantity of described screw is five.
For realizing above-mentioned another purpose, a kind of blower fan of the present utility model, it comprises fixing device, described fixing device comprises axial fan hub, impeller, and the main shaft that matches with described axial fan hub, it is characterized in that, described axial fan hub comprises wheel hub and the wheel hub tapered sleeve that matches with described wheel hub, endoporus with tapering is arranged on described wheel hub, on the described wheel hub wall relative with the wheel hub tapered sleeve, be formed with the screw thread that matches.
As further improvement of the utility model, the thread groove that is opened on described wheel hub and wheel hub tapered sleeve forms screw, and the quantity of described screw is five.
Compared with prior art, the beneficial effects of the utility model are: when fixing device of the present utility model had prevented blower fan work, axial fan hub moved along the main shaft axial direction, has improved steadiness and the safety coefficient of blower fan.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the wheel hub of fan fixing device of the present utility model;
Fig. 2 is the schematic diagram of an embodiment of the wheel hub tapered sleeve of fan fixing device of the present utility model.
Embodiment
Below in conjunction with each mode of execution shown in the drawings, the utility model is elaborated; but should be noted that; these mode of executions are not limitation of the utility model; those of ordinary skills are according to these mode of execution institute work energy, method or structural equivalent transformation or alternative, within all belonging to protection domain of the present utility model.
As described in Figure 1, blower fan of the present utility model comprises casing, and it forms the outward appearance of blower fan, and the effect of protecting and supporting is played in contraposition device and the member of section in the inner.Further, blower fan also comprises the fixing device that is positioned at casing inside, and this fixing device comprises wheel hub 101 and wheel hub tapered sleeve 102, wherein, on wheel hub 101 wall relative with wheel hub tapered sleeve 102, is formed with the screw thread 103 that matches.
Further, the endoporus with tapering is arranged on wheel hub 101,3 tapped holes are arranged, 2 unthreaded holes, (have 2 tapped holes, 3 unthreaded holes with wheel hub tapered sleeve 102,) the male cone (strobilus masculinus) tapering is consistent, when the two matched, wheel hub tapered sleeve 102 was packed in the endoporus with tapering of wheel hub 101.Be screwed into 3 hexagon socket head cap screws, along with being screwed into of bolt, wheel hub moves upward, and due to the relation of tapering, the tapered sleeve endoporus is more and more less, until being fixed on axle tightly.During dismounting, back out 3 bolts, get wherein 2 bolts and be arranged in another 2 screws, firmly twist, until dismounting comes off.
Wheel hub tapered sleeve 102 offers the through hole that passes for main shaft.Main shaft is placed through by above-mentioned through hole among axial fan hub 10, and impeller is rotated take the central axis of main shaft as rotating shaft.
When blower fan was worked, due to the High Rotation Speed of impeller, axial fan hub can in axial direction move by relative main shaft, and namely axial fan hub occurred to become flexible with coordinating of main shaft, and then affected the work of blower fan.For this reason, above-mentioned fixing device 10 is installed on the axial fan hub place that matches with main shaft, and particularly, wheel hub is fixed and is connected with axial fan hub, and the wheel hub tapered sleeve matches with wheel hub.As required, the quantity of the screw of above-mentioned formation can be set to two or three.Due to, axial fan hub has screw to fix with the tapered sleeve place of matching, and then has strengthened axial fan hub and spindle mounted intensity.
When fixing device of the present utility model had prevented blower fan work, axial fan hub moved along the main shaft axial direction, has improved steadiness and the safety coefficient of blower fan.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that do not deviate from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, therefore is intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Should not be considered as any reference character in claim to limit related claim.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technological scheme in each embodiment also can, through appropriate combination, form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (4)
1. fan fixing device, it comprises axial fan hub, impeller, and the main shaft that matches with described axial fan hub, it is characterized in that, described axial fan hub comprises wheel hub and the wheel hub tapered sleeve that matches with described wheel hub, on described wheel hub, be formed with the endoporus with tapering that holds the wheel hub tapered sleeve, on the described wheel hub wall relative with the wheel hub tapered sleeve, be formed with the screw thread that matches.
2. fan fixing device according to claim 1, is characterized in that, the thread groove that is opened on described wheel hub and wheel hub tapered sleeve forms screw, and the quantity of described screw is five.
3. blower fan, it comprises fixing device, it is characterized in that, described fixing device comprises axial fan hub, impeller, and the main shaft that matches with described axial fan hub, it is characterized in that, described axial fan hub comprises wheel hub and the wheel hub tapered sleeve that matches with described wheel hub, on described wheel hub, be formed with the endoporus with tapering that holds the wheel hub tapered sleeve, on the described wheel hub wall relative with the wheel hub tapered sleeve, be formed with the thread groove that matches.
4. blower fan according to claim 3, is characterized in that, the thread groove that is opened on described wheel hub and wheel hub tapered sleeve forms screw, and the quantity of described screw is five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203181870U CN203297149U (en) | 2013-06-04 | 2013-06-04 | Draught fan fixing device and draught fan comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203181870U CN203297149U (en) | 2013-06-04 | 2013-06-04 | Draught fan fixing device and draught fan comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297149U true CN203297149U (en) | 2013-11-20 |
Family
ID=49573159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203181870U Expired - Fee Related CN203297149U (en) | 2013-06-04 | 2013-06-04 | Draught fan fixing device and draught fan comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269471A (en) * | 2017-08-15 | 2017-10-20 | 江苏帝姆斯制冷设备有限公司 | Fan blade kludge and fan blade assemble method |
-
2013
- 2013-06-04 CN CN2013203181870U patent/CN203297149U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269471A (en) * | 2017-08-15 | 2017-10-20 | 江苏帝姆斯制冷设备有限公司 | Fan blade kludge and fan blade assemble method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20170604 |