CN219974900U - Hub of improved axial fan - Google Patents
Hub of improved axial fan Download PDFInfo
- Publication number
- CN219974900U CN219974900U CN202321231626.4U CN202321231626U CN219974900U CN 219974900 U CN219974900 U CN 219974900U CN 202321231626 U CN202321231626 U CN 202321231626U CN 219974900 U CN219974900 U CN 219974900U
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- CN
- China
- Prior art keywords
- side wall
- hub
- annular
- iron
- hole
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052742 iron Inorganic materials 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000007493 shaping process Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a hub of an improved axial flow fan, which comprises a wheel disc and an annular side plate part formed on the top surface of the outer side edge part of the wheel disc, wherein a plurality of circular mounting grooves are formed on the outer side wall of the annular side plate part; the top surface of the middle part of the wheel disc is provided with a convex reinforcing part which extends upwards, and the middle part of the convex reinforcing part is provided with a vertical connecting through hole which extends downwards vertically; the inner side wall of the vertical connecting through hole is provided with an annular groove in a forming mode, the iron annular sleeve body is arranged in the annular groove, and the outer side wall of the iron annular sleeve is fixed on the inner side wall of the annular groove. The iron annular sleeve is arranged at the inner side wall of the vertical connecting through hole of the wheel disc of the wheel hub, so that the strength of the iron annular sleeve is improved, the iron annular sleeve is firmly connected with the output shaft of the motor, the iron annular sleeve is not easy to deform and damage, and the service life of the wheel hub is prolonged.
Description
Technical field:
the utility model relates to the technical field of impeller processing equipment, in particular to a hub of an improved axial flow fan.
The background technology is as follows:
along with rapid development of domestic traffic and more tunnel projects of various subways, railways and highways, the axial-flow fans are widely applied to ventilation systems of subways, railways and highways; the hub casting is formed by adopting an aluminum casting mode in the manufacturing of the fan hub.
For the impeller hub made of aluminum, the impeller hub needs to be connected with the output shaft of the motor, the output shaft of the motor is made of steel or iron, the hardness of the impeller hub is higher than that of the aluminum material, particularly the large-sized hub with relatively large impeller weight, the impeller hub is heavy and runs after being installed on the output shaft of the motor, the connecting hole of the impeller hub is easy to deform, the matching between the connecting hole of the hub and the output shaft of the motor cannot meet the design requirement after long time, the impeller can be loosened, even eccentric and other problems are caused, frequent replacement is needed, and the impeller hub is very troublesome and high in cost.
The utility model comprises the following steps:
the utility model aims at overcoming the defects of the prior art, and provides an improved hub of a axial flow fan, which is characterized in that an iron annular sleeve is arranged on the inner side wall of a vertical connecting through hole of a wheel disc of the hub, so that the strength of the hub is improved, the hub is firmly connected with an output shaft of a motor, is not easy to deform and damage, and the service life of the hub is prolonged.
The technical solution of the utility model is as follows:
the hub of the improved axial fan comprises a wheel disc and an annular side plate part formed on the top surface of the outer side edge part of the wheel disc, wherein a plurality of circular mounting grooves are formed on the outer side wall of the annular side plate part;
the top surface of the middle part of the wheel disc is provided with a convex reinforcing part which extends upwards, and the middle part of the convex reinforcing part is provided with a vertical connecting through hole which extends downwards vertically;
the inner side wall of the vertical connecting through hole is provided with an annular groove in a forming mode, the iron annular sleeve is arranged in the annular groove, and the outer side wall of the iron annular sleeve is fixed on the inner side wall of the annular groove.
The inner side wall of the iron annular sleeve is aligned with the inner side wall of the vertical connecting through hole.
And the inner side wall of the iron annular sleeve is provided with an axially extending key groove, and the key groove is communicated with and aligned with an auxiliary key groove formed at the top and the bottom of the inner side wall of the vertical connecting through hole.
The circular mounting groove is internally provided with a reinforcing sleeve body, and the outer side wall of the reinforcing sleeve body is fixed with the inner side wall of the circular mounting groove.
The reinforcing sleeve body is an iron sleeve body.
The inner side wall of the reinforcing sleeve body is provided with a plurality of axially extending protruding strips, and all protruding strips are uniformly distributed on the inner side wall of the reinforcing sleeve body by taking the central axis of the reinforcing sleeve body as the center.
And a plurality of mounting through holes are formed in the inner end face of the circular mounting groove.
The utility model has the beneficial effects that:
the iron annular sleeve is arranged at the inner side wall of the vertical connecting through hole of the wheel disc of the wheel hub, so that the strength of the iron annular sleeve is improved, the iron annular sleeve is firmly connected with the output shaft of the motor, the iron annular sleeve is not easy to deform and damage, and the service life of the wheel hub is prolonged.
Description of the drawings:
FIG. 1 is a schematic view of a partial structure of the present utility model;
FIG. 2 is a partial cross-sectional view of the present utility model;
fig. 3 is a schematic partial structure of the iron ring sleeve of the present utility model.
The specific embodiment is as follows:
examples: as shown in fig. 1 to 3, a hub of an improved axial fan comprises a wheel disc 10 and an annular side plate part 20 formed on the top surface of the outer side edge part of the wheel disc 10, wherein a plurality of circular mounting grooves 21 are formed on the outer side wall of the annular side plate part 20;
the top surface of the middle part of the wheel disc 10 is provided with a convex reinforcing part 11 which extends upwards, and the middle part of the convex reinforcing part 11 is provided with a vertical connecting through hole 12 which extends downwards vertically; the rim portion of the wheel disc 10 is formed with a plurality of through holes, and all the through holes are uniformly distributed on the wheel disc 10 with the central axis of the wheel disc 10 as the center.
An annular groove is formed in the inner side wall of the vertical connecting through hole 12, an iron annular sleeve 30 is arranged in the annular groove, and the outer side wall of the iron annular sleeve 30 is fixed on the inner side wall of the annular groove. In the process of machining the hub of the embodiment, the iron annular sleeve 30 is firstly installed at the installation position of the top surface of the middle part of the lower die, then, after the upper die and the lower die are covered, aluminum liquid is cast, then, the hub is cast, the iron annular sleeve 30 is directly formed together with the inner side wall of the vertical connecting through hole 12, and then, the inner side wall of the middle through hole of the iron annular sleeve 30 is machined.
Further, the inner side wall of the iron ring-shaped sleeve 30 is aligned with the inner side wall of the vertical connecting through hole 12.
Further, the inner sidewall of the iron ring-shaped sleeve 30 is formed with an axially extending key groove 31, and the key groove 31 is communicated with and aligned with the auxiliary key grooves 121 formed at the top and bottom of the inner sidewall of the vertical connecting through hole 12. During the processing, the key groove 31 and the auxiliary key groove 121 are directly processed at one time.
Further, a reinforcing sleeve 22 is installed in the circular installation groove 21, and an outer sidewall of the reinforcing sleeve 22 is fixed to an inner sidewall of the circular installation groove 21. It is also in the casting process that the reinforcing sleeve 22 is directly mounted at the mounting positions of the upper die and the lower die, and is directly cast and molded together. The reinforcing sleeve 22 is an iron sleeve.
Further, a plurality of axially extending protruding strips 23 are formed on the inner side wall of the reinforcing sleeve 22, and all the protruding strips 23 are uniformly distributed on the inner side wall of the reinforcing sleeve 22 with the central axis of the reinforcing sleeve 22 as the center.
Further, a plurality of mounting through holes 211 are formed in the inner end surface of the circular mounting groove 21.
The embodiment sets up the iron annular sleeve 30 on the inside wall of vertical connection through-hole 12 for it is through being in the annular groove, makes the output shaft of motor directly be connected with iron annular sleeve 30, and the hardness of iron annular sleeve 30 is big, makes it be difficult to warp when using, guarantees its connection firmness with the output shaft of motor, and it can not make rim plate 10 warp, guarantees wheel hub's life.
The inner side wall of the reinforcing sleeve body 22 arranged in the circular mounting groove 21 is provided with a plurality of axially extending protruding strips 23, so that when the connecting shaft part of the blade is mounted, the outer side wall of the blade is contacted or clung to the wall surfaces of all the protruding strips 23, and the connecting shaft part is supported and contacted, and is firmly connected.
Claims (5)
1. The utility model provides an improved generation axial fan's wheel hub, includes rim plate (10) and shaping at annular curb plate portion (20) of rim plate (10) outside limit portion top surface, its characterized in that: a plurality of circular mounting grooves (21) are formed on the outer side wall of the annular side plate part (20);
the top surface of the middle part of the wheel disc (10) is provided with a convex reinforcing part (11) extending upwards, and the middle part of the convex reinforcing part (11) is provided with a vertical connecting through hole (12) extending downwards vertically;
an annular groove is formed in the inner side wall of the vertical connecting through hole (12), an iron annular sleeve (30) is arranged in the annular groove, and the outer side wall of the iron annular sleeve (30) is fixed on the inner side wall of the annular groove.
2. The hub of an improved axial fan as defined in claim 1, wherein: the inner side wall of the iron annular sleeve (30) is aligned with the inner side wall of the vertical connecting through hole (12).
3. The hub of an improved axial fan as defined in claim 1, wherein: the circular mounting groove (21) is internally provided with a reinforcing sleeve body (22), and the outer side wall of the reinforcing sleeve body (22) is fixed with the inner side wall of the circular mounting groove (21).
4. A hub for an improved axial fan as defined in claim 3, wherein: the reinforcing sleeve body (22) is an iron sleeve body.
5. A hub for an improved axial fan as defined in claim 3, wherein: a plurality of axially extending protruding strips (23) are formed on the inner side wall of the reinforcing sleeve body (22), and all protruding strips (23) are uniformly distributed on the inner side wall of the reinforcing sleeve body (22) by taking the central axis of the reinforcing sleeve body (22) as the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321231626.4U CN219974900U (en) | 2023-05-22 | 2023-05-22 | Hub of improved axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321231626.4U CN219974900U (en) | 2023-05-22 | 2023-05-22 | Hub of improved axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974900U true CN219974900U (en) | 2023-11-07 |
Family
ID=88597555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321231626.4U Active CN219974900U (en) | 2023-05-22 | 2023-05-22 | Hub of improved axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974900U (en) |
-
2023
- 2023-05-22 CN CN202321231626.4U patent/CN219974900U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |