CN102312866A - Heat insulation box body of axial-flow type heated-air circulation fan - Google Patents
Heat insulation box body of axial-flow type heated-air circulation fan Download PDFInfo
- Publication number
- CN102312866A CN102312866A CN201110246370A CN201110246370A CN102312866A CN 102312866 A CN102312866 A CN 102312866A CN 201110246370 A CN201110246370 A CN 201110246370A CN 201110246370 A CN201110246370 A CN 201110246370A CN 102312866 A CN102312866 A CN 102312866A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- section
- air circulation
- diameter
- heat insulating
- 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.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a heat insulation box body of an axial-flow type heated-air circulation fan, which comprises a main body with a round cross section, wherein the main body comprises a cylindrical section which is positioned at the upper part and an inverse circular truncated conical section which is positioned at the lower part, the diameter of the cylindrical section is the same as the major diameter of the inverse circular truncated conical section, the small diameter of the inverse circular truncated conical section is as the same as the diameter of an impeller hub, and a concave cavity with a round cross section is arranged in the upper end surface of the main body. The heat insulation box body is suitable to the axial-flow type heated-air circulation fan, the overhanging length of a main shaft which is positioned in the heat insulation box body can be shortened, accordingly, the strength and rigidity of the main shaft are increased, the stability of the main shaft is increased during the high speed rotation, and is prevented from being collided with a sleeve, accordingly, the service life of the main shaft can be increased, and the generated noise is reduced when the impeller rotates.
Description
Technical field
The present invention 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.
Summary of the invention
Technical problem to be solved by this invention 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 present invention 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 invention has the beneficial effects as follows: 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 axial flow hot air circulation blower of the present invention cuts open figure;
Fig. 2 is a user mode schematic representation of the present invention;
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 axial flow hot air circulation blower of the present invention 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 present invention; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
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 |
|---|---|---|---|
| CN201110246370A CN102312866A (en) | 2011-08-25 | 2011-08-25 | Heat insulation box body of axial-flow type heated-air circulation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110246370A CN102312866A (en) | 2011-08-25 | 2011-08-25 | Heat insulation box body of axial-flow type heated-air circulation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102312866A true CN102312866A (en) | 2012-01-11 |
Family
ID=45426324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110246370A Pending CN102312866A (en) | 2011-08-25 | 2011-08-25 | Heat insulation box body of axial-flow type heated-air circulation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102312866A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116108U (en) * | 1992-01-29 | 1992-09-16 | 天津市通风除尘设备厂 | High temperature reversible axial-flow fan |
| US6454530B1 (en) * | 2001-03-23 | 2002-09-24 | Erik A. Lange | High-temperature fan apparatus |
| US7259486B2 (en) * | 2005-04-21 | 2007-08-21 | Nidec Corporation | Axial fan |
| CN101418818A (en) * | 2008-11-12 | 2009-04-29 | 张家港市东丰特种风机有限公司 | High-temperature blower |
| CN101922460A (en) * | 2010-07-19 | 2010-12-22 | 张家港市东丰特种风机有限公司 | High-temperature axial flow fan |
| CN201757066U (en) * | 2010-07-19 | 2011-03-09 | 张家港市东丰特种风机有限公司 | High-temperature axial flow fan |
| CN202301200U (en) * | 2011-08-25 | 2012-07-04 | 张家港市东丰特种风机有限公司 | Heat-insulating box body of axial-flow type hot air circulation fan |
-
2011
- 2011-08-25 CN CN201110246370A patent/CN102312866A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116108U (en) * | 1992-01-29 | 1992-09-16 | 天津市通风除尘设备厂 | High temperature reversible axial-flow fan |
| US6454530B1 (en) * | 2001-03-23 | 2002-09-24 | Erik A. Lange | High-temperature fan apparatus |
| US7259486B2 (en) * | 2005-04-21 | 2007-08-21 | Nidec Corporation | Axial fan |
| CN101418818A (en) * | 2008-11-12 | 2009-04-29 | 张家港市东丰特种风机有限公司 | High-temperature blower |
| CN101922460A (en) * | 2010-07-19 | 2010-12-22 | 张家港市东丰特种风机有限公司 | High-temperature axial flow fan |
| CN201757066U (en) * | 2010-07-19 | 2011-03-09 | 张家港市东丰特种风机有限公司 | High-temperature axial flow fan |
| CN202301200U (en) * | 2011-08-25 | 2012-07-04 | 张家港市东丰特种风机有限公司 | Heat-insulating box body of axial-flow type hot air circulation fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203879799U (en) | Double-suction centrifugal fan blade | |
| CN205895634U (en) | Big impeller electric oven fan | |
| CN202301200U (en) | Heat-insulating box body of axial-flow type hot air circulation fan | |
| CN102312866A (en) | Heat insulation box body of axial-flow type heated-air circulation fan | |
| CN204942079U (en) | A kind of axial fan of super-silent natural wind | |
| CN104405682B (en) | Fan propeller assembly | |
| CN201982370U (en) | Wind turbine blade and wind turbine of range hood | |
| CN204267382U (en) | A kind of low noise axial fan | |
| CN210660727U (en) | Fan with double-set fan blades | |
| CN103867487A (en) | Fan blade | |
| CN104490066A (en) | Hair drier device capable of preventing hairs from being rolled into motor | |
| CN103423200A (en) | Efficient energy-saving exhaust fan | |
| CN206943084U (en) | A kind of centrifugal blower fan blade wheel | |
| CN204610373U (en) | A kind of Power generator fan | |
| CN204312379U (en) | For the large discharge high temperature blast device of drying shed | |
| CN206280300U (en) | A kind of cleaning machine cooling fan | |
| CN204283991U (en) | A kind of draught fan impeller assembly | |
| CN102454629A (en) | Fan impeller | |
| CN204013079U (en) | A kind of motor of industrial sewing machine | |
| CN202914386U (en) | Metal centrifugal impeller | |
| CN203114667U (en) | Cooling tower fan | |
| CN201896792U (en) | Brushless condensation fan | |
| CN202789605U (en) | Axial flow fan | |
| CN202250957U (en) | External backswept centrifugal fan | |
| CN201953713U (en) | Variable-frequency adjustable-speed motor with fan of centrifugal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120111 |