CN203670264U - Airlock hollow impeller shaft - Google Patents
Airlock hollow impeller shaft Download PDFInfo
- Publication number
- CN203670264U CN203670264U CN201320711221.0U CN201320711221U CN203670264U CN 203670264 U CN203670264 U CN 203670264U CN 201320711221 U CN201320711221 U CN 201320711221U CN 203670264 U CN203670264 U CN 203670264U
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- CN
- China
- Prior art keywords
- impeller
- impeller shaft
- shaft
- hollow
- locating
- 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 an airlock hollow impeller shaft. The impeller shaft is fixedly embedded and cast in a central hole of an impeller, the impeller shaft is hollow, a locating step used for locating the impeller in the axial direction after casting is carried out is arranged on the impeller shaft, and at least two locating through holes perpendicular to the axial line of the impeller shaft are formed in the position, in the central hole of the impeller, of the impeller shaft. In the rotating process of a rotor of the impeller, an internal step corresponding to the locating step is formed by the cast impeller central hole, and axial locating and radial locating of a part of the impeller formed through the locating through holes with the impeller shaft are achieved. According to the airlock hollow impeller shaft, the impeller shaft is hollow, the impeller shaft and the impeller are combined firmly through the casting technology, the problem of heat dissipation when the rotor of the impeller rotates is solved effectively, the structure is simple and effective, and the airlock hollow impeller shaft can be widely popularized and applied.
Description
Technical field
The utility model relates to the Impeller airlock impeller shaft in wind-force conveying and dust removal by ventilation equipment, refers to especially a kind of wind closed device hollow impeller axle with excellent heat dispersion performance, belongs to wind-force and carries and dust removal by ventilation equipment preparing technical field.
Background technique
Impeller airlock is the capital equipment of dusting apparatus ash discharge, air-supply and miscellaneous equipment feed, be applicable to granular material and granulated material, normally by the impeller of rotor with several pieces blades, housing, the compositions such as Sealing, using scope is extensive, in industrial department extensive uses such as environmental protection, metallurgy, chemical industry, grain, food.The normally isodiametric solid impeller shaft of traditional impeller shaft or splined shaft, the vane rotor of impeller and impeller shaft composition is in the process running up, can produce amount of heat, also for wind closed device, any sink is not set at present, if these heats do not distribute, easily the normal operation of wind closed device is caused to potential harm.
Model utility content
This practicality is practised novel object and is that the heat radiation difficult problem existing for the impeller shaft of existing wind closed device provides a kind of hollow impeller axle, by casting technique, impeller shaft is combined with impeller firmly, vane rotor dimensional accuracy after assembling is high, when can meeting vane rotor high speed operation, effectively vane rotor is dispelled the heat.
The utility model adopts following technological scheme to realize: a kind of wind closed device hollow impeller axle, and the fixing castingin of described impeller shaft is in the center hole of impeller, and described impeller shaft is hollow shaft.
In the utility model, the thickness of described hollow shaft is at least 10mm.
Concrete, described impeller shaft is provided with the positioning step of axially locating impeller after casting, and is provided with at least two positioning through hole perpendicular to impeller shaft axis in the position that described impeller shaft is positioned at impeller center hole.
In the utility model, described positioning step is positioned at the position of the inner both sides of impeller center hole, and the height of described positioning step is 3-8mm.
In the utility model, between adjacent positioned through hole, be space crossed setting.
Preferably, the diameter of described positioning through hole is 8-12mm.
In the process of rotating at vane rotor, the impeller center hole of casting forms the interior step corresponding with positioning step, and by a part of realization of impeller of positioning through hole moulding and axially and radially fixing of impeller shaft.The impeller shaft that the utility model relates to adopts hollow shaft, be assembled at impeller and impeller shaft the work of vane rotor high speed rotating time, the heat of its generation can be realized by the circulation of air of hollow shaft inner chamber air-cooled, or can pass into cooling water realization heat radiation to hollow shaft inner chamber.
The utility model is not changing on the basis of existing wind closed device vane rotor mechanical structure, and the heat radiation difficult problem can effectively solve vane rotor rotation by hollow shaft time is simple in structure effective, can extensively be applicable.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Brief description of the drawings
Fig. 1 is the side view of the vane rotor that is assembled into of impeller and impeller shaft.
Fig. 2 is the main sectional view of the vane rotor that is assembled into of impeller and impeller shaft.
Number in the figure: 1-impeller shaft, 2-impeller, 3-positioning step, 4-positioning through hole.
Embodiment
Embodiment
In conjunction with referring to Fig. 1 and Fig. 2, the fixing castingin of described impeller shaft 1 is in the center hole of impeller 2, and described impeller shaft 1 is hollow shaft.Described impeller shaft 1 is provided with the positioning step of the rear axially locating impeller 2 of casting, described positioning step is positioned at the position of the inner both sides of impeller center hole, and the position that is positioned at impeller center hole at described impeller shaft 1 is provided with two positioning through hole 4 perpendicular to impeller shaft axis, square crossing setting in implementation space between adjacent two positioning through hole 4.
In the accompanying drawings, the external diameter of described impeller shaft 1 is 40mm, and internal diameter is 20mm, and the external diameter of step is 50mm, and shoulder height is 5mm, and the diameter of through hole is 10mm.
Described impeller shaft 1 can adopt seamless steel pipe, or on round steel, directly process endoporus and positioning step, in the time of casting impeller, by the lumen loading molding sand of impeller shaft, the position of positioning through hole is got through to reserve and build the casting technique that can carry out impeller after passage, after impeller casting, the molding sand of impeller shaft inner chamber is pounded out.
Claims (5)
1. a wind closed device hollow impeller axle, the fixing castingin of described impeller shaft is in the center hole of impeller, it is characterized in that: described impeller shaft is hollow shaft, described impeller shaft is provided with the positioning step of axially locating impeller after casting, and is provided with at least two positioning through hole perpendicular to impeller shaft axis in the position that described impeller shaft is positioned at impeller center hole.
2. a kind of wind closed device hollow impeller axle according to claim 1, is characterized in that: the thickness of described hollow shaft is at least 10mm.
3. a kind of wind closed device hollow impeller axle according to claim 1, is characterized in that: described positioning step is positioned at the position of the inner both sides of impeller center hole, and the height of described positioning step is 3-8mm.
4. a kind of wind closed device hollow impeller axle according to claim 1, is characterized in that: between adjacent positioned through hole, be space crossed setting.
5. a kind of wind closed device hollow impeller axle according to claim 4, is characterized in that: the diameter of described positioning through hole is 8-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711221.0U CN203670264U (en) | 2013-11-12 | 2013-11-12 | Airlock hollow impeller shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711221.0U CN203670264U (en) | 2013-11-12 | 2013-11-12 | Airlock hollow impeller shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670264U true CN203670264U (en) | 2014-06-25 |
Family
ID=50966567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320711221.0U Expired - Fee Related CN203670264U (en) | 2013-11-12 | 2013-11-12 | Airlock hollow impeller shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670264U (en) |
-
2013
- 2013-11-12 CN CN201320711221.0U patent/CN203670264U/en not_active Expired - Fee Related
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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: 20140625 Termination date: 20161112 |