CN202301200U - Heat-insulating box body of axial-flow type hot air circulation fan - Google Patents
Heat-insulating box body of axial-flow type hot air circulation fan Download PDFInfo
- Publication number
- CN202301200U CN202301200U CN2011203128899U CN201120312889U CN202301200U CN 202301200 U CN202301200 U CN 202301200U CN 2011203128899 U CN2011203128899 U CN 2011203128899U CN 201120312889 U CN201120312889 U CN 201120312889U CN 202301200 U CN202301200 U CN 202301200U
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- insulating box
- hot air
- air circulation
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- axial
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Abstract
The utility model relates to a heat-insulating box body of an axial-flow type hot air circulation fan, which comprises a body with a round cross section. The body includes a cylinder section located at the upper portion and an inverted circular truncated cone section located at the lower portion, the diameter of the cylinder section is identical to the large diameter of the inverted circular truncated cone section, the small diameter of the inverted circular truncated cone section is identical to the diameter of an impeller hub, and a cavity with a round cross section is arranged on the upper end face of the body. The heat-insulating box body of the axial-flow type hot air circulation fan is suitable for the axial-flow type hot air circulation fan and can enable the overhanging length of a spindle located in the heat-insulating box body to be shortened, thereby increasing the strength and the rigidity of the spindle, enabling the stability of the spindle rotating at high speed to be enhanced, avoiding collision occurred between the spindle and a sleeve, accordingly prolonging the service life of the spindle and reducing noise produced by an impeller in running.
Description
Technical field
The utility model relates to a kind of heat insulating box of axial flow hot air circulation blower.
Background technique
The structure of axial flow hot air circulation blower comprises heat insulating box, is arranged on the bearing support on the heat insulating box and is movably arranged on the main shaft in the bearing support through bearing; One end projecting shaft bearing of main shaft is connected with motor; The other end projecting shaft bearing of main shaft and penetrate heat insulating box and be connected with impeller wherein is positioned at the heat insulating box middle part and is provided with the sleeve pipe that lets main shaft pass through.The structure of present employed heat insulating box is generally cylindrical structure, and bearing support is fixed on the upper-end surface of heat insulating box.Its shortcoming is: owing to the length that overhangs of the main shaft that is arranged in heat insulating box is longer; So the intensity of this section main shaft and rigidity a little less than; Under the situation that stands furnace high-temperature for a long time; This section main shaft deforms easily, thereby causes killing phenomenon between main shaft and the sleeve pipe, influences the normal operation of axial flow hot air circulation blower; In addition, main shaft poor stability when high speed rotating that the length that overhangs is long, the impeller when influencing the working life of main shaft and making high speed rotating produce noise and increase.
The model utility content
The utility model technical problem to be solved is: the heat insulating box that a kind of axial flow hot air circulation blower of the shorten length that overhangs that can make the main shaft that is arranged in heat insulating box is provided.
For addressing the above problem; The technological scheme that the utility model adopts is: the heat insulating box of axial flow hot air circulation blower; Comprise that cross section is circular body, said body comprises superposed shell portion and the rounding platform section that is positioned at the bottom, and the diameter of shell portion is identical with the major diameter of rounding platform section; The minor diameter of rounding platform section is identical with the diameter of impeller hub, is provided with cross section in the upper-end surface of body and is circular cavity.
The sidewall of said cavity is the inclined-plane.
The sidewall of said rounding platform section and the angle between the horizontal plane are 50 ~ 60 degree.
The beneficial effect of the utility model is: the heat insulating box of above-mentioned axial flow hot air circulation blower; It improves on original heat insulating box slightly; Thereby make the shorten length that overhangs of the main shaft that is arranged in heat insulating box, thereby increased the intensity and the rigidity of this section main shaft, make main shaft good stability when high speed rotating; Avoided and sleeve pipe between bump, thereby generating noise can increase the working life of main shaft and reduce impeller operation the time.
Description of drawings
Fig. 1 is that the axle of the heat insulating box of the utility model axial flow hot air circulation blower cuts open figure;
Fig. 2 is the user mode schematic representation of the utility model;
Among the figure: 1, body, 2, shell portion, 3, rounding platform section, 4, impeller, 5, cavity, 6, bearing support, 7, support, 8, main shaft, 9, bearing, 10, sleeve pipe, 11, motor, a, the sidewall of rounding platform section 3 and the angle between the horizontal plane.
Embodiment
Through specific embodiment the heat insulating box of the utility model axial flow hot air circulation blower is done further to describe in detail below.
As shown in Figure 1, the heat insulating box of axial flow hot air circulation blower comprises that cross section is circular body 1; Said body 1 comprises superposed shell portion 2 and the rounding platform section 3 that is positioned at the bottom; The diameter of shell portion 2 is identical with the major diameter of rounding platform section 3, and the minor diameter of rounding platform section 3 is identical with the diameter of impeller 4 wheel hubs, and the sidewall of rounding platform section 3 and the angle a between the horizontal plane are 50 ~ 60 degree; Thereby the gas-flow resistance in the time of can reducing impeller 4 air-out; Be convenient to air-out, be provided with cross section in the upper-end surface of body 1 and be circular cavity 5, the sidewall of cavity 5 is the inclined-plane.
As shown in Figure 2; The heat insulating box of above-mentioned axial flow hot air circulation blower; When it uses, the bottom of bearing support 6 is arranged in the cavity 5, the top of bearing support 6 fixes through body 1 upper-end surface of support 7 with heat insulating box; Main shaft 8 is movably arranged in the bearing support 6 through bearing 9; One end projecting shaft bearing 6 of main shaft 8 is connected with motor 11, and the other end projecting shaft bearing 6 of main shaft 8 and the body 1 that penetrates heat insulating box are connected with impeller 4, wherein is arranged on the main shaft 8 of heat insulating box to be arranged with sleeve pipe 10.Compare with present employed heat insulating box; The length that overhangs of main shaft 8 that is arranged in heat insulating box is shorter; Thereby the intensity and the rigidity of this section main shaft 8 have been increased; And this section main shaft 8 is not easy to deform, and has avoided killing phenomenon between main shaft 8 and the sleeve pipe 10, thereby can not influence the normal operation of axial flow hot air circulation blower; In addition, main shaft 8 good stability when high speed rotating that the length that overhangs is short, avoided and sleeve pipe 10 between bump, thereby can increase the working life of main shaft 8 and reduce generating noise.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the utility model; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.
Claims (3)
1. the heat insulating box of axial flow hot air circulation blower; Comprise that cross section is circular body; It is characterized in that: said body comprises superposed shell portion and the rounding platform section that is positioned at the bottom; The diameter of shell portion is identical with the major diameter of rounding platform section, and the minor diameter of rounding platform section is identical with the diameter of impeller hub, is provided with cross section in the upper-end surface of body and is circular cavity.
2. the heat insulating box of axial flow hot air circulation blower according to claim 1 is characterized in that: the sidewall of said cavity is the inclined-plane.
3. the heat insulating box of axial flow hot air circulation blower according to claim 1 and 2 is characterized in that: the sidewall of said rounding platform section and the angle between the horizontal plane are 50 ~ 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203128899U CN202301200U (en) | 2011-08-25 | 2011-08-25 | Heat-insulating box body of axial-flow type hot air circulation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203128899U CN202301200U (en) | 2011-08-25 | 2011-08-25 | Heat-insulating box body of axial-flow type hot air circulation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301200U true CN202301200U (en) | 2012-07-04 |
Family
ID=46370109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203128899U Expired - Fee Related CN202301200U (en) | 2011-08-25 | 2011-08-25 | Heat-insulating box body of axial-flow type hot air circulation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312866A (en) * | 2011-08-25 | 2012-01-11 | 张家港市东丰特种风机有限公司 | Heat insulation box body of axial-flow type heated-air circulation fan |
-
2011
- 2011-08-25 CN CN2011203128899U patent/CN202301200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312866A (en) * | 2011-08-25 | 2012-01-11 | 张家港市东丰特种风机有限公司 | Heat insulation box body of axial-flow type heated-air circulation fan |
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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: 20120704 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |