CN210829774U - Centrifugal exhaust fan without volute - Google Patents
Centrifugal exhaust fan without volute Download PDFInfo
- Publication number
- CN210829774U CN210829774U CN201921705794.6U CN201921705794U CN210829774U CN 210829774 U CN210829774 U CN 210829774U CN 201921705794 U CN201921705794 U CN 201921705794U CN 210829774 U CN210829774 U CN 210829774U
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- top plate
- bottom plate
- volute
- connecting bolt
- centrifugal
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Abstract
The utility model discloses a centrifugal air exhauster of no spiral case, which comprises a top plate, the bottom plate, the angle steel, including a motor, an end cap, a controller, and a cover plate, centrifugal impeller, go up connecting bolt, connecting bolt down, go up coupling nut, lower coupling nut and arc air intake, centrifugal impeller all is located between roof and the bottom plate with the arc air intake, the middle part of roof is provided with the main shaft, centrifugal impeller connects on the main shaft, arc air intake connection is on the bottom plate, the motor is installed on the roof, the expansion end of motor runs through and connects on the main shaft after the roof, the border of roof is provided with the hem, the border of bottom plate is provided with down the hem, go up connecting bolt and run through the upper end of angle steel and go up behind the hem with last coupling nut threaded connection, lower. The volute-free centrifugal exhaust fan cancels a volute group with larger volume, the circumference of the whole impeller can uniformly exhaust air, and the noise value of the whole machine during operation is reduced.
Description
Technical Field
The utility model relates to a technical field of air exhauster especially relates to a centrifugal air exhauster of no spiral case.
Background
The existing centrifugal exhaust fan is formed by splicing and combining a volute assembly, an impeller, an air inlet assembly and a transmission assembly, and is suitable for being connected with an air pipe for backward pumping. Because the overall dimension of volute group is generally about one time bigger than the diameter of impeller, in the usage that only is used for backward pump drainage, volute group's overall dimension is bigger than supporting equipment partially, and lead to selecting only the supporting single amount of wind and the pressure that can not reach the requirement again because the size is littleer of the less size of machine, because volute group only has an air outlet in addition, when supporting operation is used on equipment, can produce impulsive noise with the cabinet body of equipment when the air outlet velocity of flow is very fast, lead to the increase of noise of operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: the volute-free centrifugal exhaust fan cancels a volute group with larger volume, the circumference of the whole impeller can uniformly exhaust air, and the noise value of the whole machine during operation is reduced.
To achieve the purpose, the utility model adopts the following technical proposal: a volute-free centrifugal exhaust fan comprises a top plate, a bottom plate, angle steel, a motor, a centrifugal impeller, an upper connecting bolt, a lower connecting bolt, an upper connecting nut, a lower connecting nut and an arc-shaped air inlet, wherein the top plate is positioned above the bottom plate, the centrifugal impeller and the arc-shaped air inlet are positioned between the top plate and the bottom plate, a main shaft is arranged in the middle of the top plate, the centrifugal impeller is connected onto the main shaft, the arc-shaped air inlet is connected onto the bottom plate, the centrifugal impeller and the arc-shaped air inlet are fixedly connected, the motor is installed on the top plate, the movable end of the motor penetrates through the top plate and then is connected onto the main shaft, an upper folding edge is arranged at the edge of the top plate, a lower folding edge is arranged at the edge of the bottom plate, the upper connecting bolt penetrates through the upper end of the angle steel and, and the lower connecting bolt penetrates through the lower end of the angle steel and the lower folded edge and is in threaded connection with the lower connecting nut.
The motor comprises a reinforcing plate, the reinforcing plate is located above the top plate, the reinforcing plate and the top plate are welded, and the motor is connected to the reinforcing plate through bolts.
As a preferable technical scheme, an upper mounting hole position is arranged on the upper folding edge, and the upper connecting bolt penetrates through the upper mounting hole position.
As a preferable technical scheme, a lower mounting hole is formed in the lower folded edge, and the lower connecting bolt penetrates through the lower mounting hole.
The utility model has the advantages that: the volute-free centrifugal exhaust fan cancels a volute group with larger volume, the circumference of the whole impeller can uniformly exhaust air, and the noise value of the whole machine during operation is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a partial cross-sectional view of a volute-less centrifugal blower according to an embodiment;
FIG. 2 is a top view of a volute-less centrifugal blower according to an embodiment;
fig. 3 is a bottom view of a volute-less centrifugal blower according to an embodiment.
In fig. 1 to 3:
1. a top plate; 2. a base plate; 3. angle steel; 4. an electric motor; 5. a centrifugal impeller; 6. an upper connecting bolt; 7. a lower connecting bolt; 8. an arc-shaped air inlet; 9. a main shaft; 10. folding the edges; 11. folding the lower edge; 12. a reinforcing plate; 13. an upper connecting nut; 14. and a lower connecting nut.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, in this embodiment, a volute-free centrifugal blower includes a top plate 1, a bottom plate 2, an angle iron 3, a motor 4, a centrifugal impeller 5, an upper connecting bolt 6, a lower connecting bolt 7, an upper connecting nut 13, a lower connecting nut 14, and an arc-shaped air inlet 8, where the top plate 1 is located above the bottom plate 2, the centrifugal impeller 5 and the arc-shaped air inlet 8 are both located between the top plate 1 and the bottom plate 2, a main shaft 9 is disposed in the middle of the top plate 1, the centrifugal impeller 5 is connected to the main shaft 9, the arc-shaped air inlet 8 is connected to the bottom plate 2, the centrifugal impeller 5 is fixedly connected to the arc-shaped air inlet 8, the motor 4 is mounted on the top plate 1, a movable end of the motor 4 penetrates through the top plate 1 and then is connected to the main shaft 9, an upper folded edge 10 is disposed on the edge, the edge of the bottom plate 2 is provided with a lower folded edge 11, the upper connecting bolt 6 penetrates through the upper end of the angle steel 3 and the upper folded edge 10 and then is in threaded connection with the upper connecting nut 13, and the lower connecting bolt 7 penetrates through the lower end of the angle steel 3 and the lower folded edge 11 and then is in threaded connection with the lower connecting nut 14.
Specifically, the motor comprises a reinforcing plate 12, wherein the reinforcing plate 12 is located above the top plate 1, the reinforcing plate 12 and the top plate 1 are welded, and the motor 4 is connected to the reinforcing plate 12 through bolts.
The bottom plate 2 is in a square folded edge form, the top plate 1 is also in a square folded edge form, the lower plane of the bottom plate 2 is an integral plane, a mounting hole position connected with external equipment is reserved in the middle of the bottom plate 2, an opening is formed in the middle of the bottom plate 2 and welded with the arc-shaped air inlet 8, the central position of the top plate 1 is perforated to install the motor 4 and weld the reinforcing plate 12, the angle steel 3 is arranged between the edge of the top plate 1 and the edge of the bottom plate 2, the upper folded edge 10 is formed by bending the edge of the top plate 1, the edge of the bottom plate 2 is provided with a lower folded edge 11, the top plate 1 and the angle steel 3 are fixedly connected together by the upper connecting bolt 6 through the upper folded edge 10, the lower connecting bolt fixedly connects the bottom plate 2 and the angle steel 3 together through the lower folding edge 11.
An upper mounting hole is formed in the upper folded edge 10, and the upper connecting bolt 6 penetrates through the upper mounting hole.
And a lower mounting hole position is arranged on the lower folded edge 11, and the lower connecting bolt 7 penetrates through the lower mounting hole position.
It should be noted that the above embodiments are only preferred embodiments of the present invention and the technical principles applied, and any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention.
Claims (4)
1. A centrifugal exhaust fan without a volute is characterized by comprising a top plate, a bottom plate, angle steel, a motor, a centrifugal impeller, an upper connecting bolt, a lower connecting bolt, an upper connecting nut, a lower connecting nut and an arc-shaped air inlet, wherein the top plate is positioned above the bottom plate, the centrifugal impeller and the arc-shaped air inlet are both positioned between the top plate and the bottom plate, a main shaft is arranged in the middle of the top plate, the centrifugal impeller is connected onto the main shaft, the arc-shaped air inlet is connected onto the bottom plate, the centrifugal impeller is fixedly connected with the arc-shaped air inlet, the motor is installed on the top plate, the movable end of the motor penetrates through the top plate and then is connected onto the main shaft, an upper folding edge is arranged at the edge of the top plate, a lower folding edge is arranged at the edge of the bottom plate, the upper connecting bolt penetrates through the upper end of the angle steel and, and the lower connecting bolt penetrates through the lower end of the angle steel and the lower folded edge and is in threaded connection with the lower connecting nut.
2. The volute-less centrifugal blower of claim 1, comprising a reinforcing plate positioned above the top plate, the reinforcing plate welded to the top plate, the motor bolted to the reinforcing plate.
3. The volute-free centrifugal blower of claim 1, wherein the upper flange is provided with an upper mounting hole, and the upper connecting bolt extends through the upper mounting hole.
4. The volute-free centrifugal blower of claim 1, wherein the lower flange has a lower mounting hole, and the lower attachment bolt extends through the lower mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705794.6U CN210829774U (en) | 2019-10-12 | 2019-10-12 | Centrifugal exhaust fan without volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705794.6U CN210829774U (en) | 2019-10-12 | 2019-10-12 | Centrifugal exhaust fan without volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829774U true CN210829774U (en) | 2020-06-23 |
Family
ID=71256183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921705794.6U Active CN210829774U (en) | 2019-10-12 | 2019-10-12 | Centrifugal exhaust fan without volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829774U (en) |
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2019
- 2019-10-12 CN CN201921705794.6U patent/CN210829774U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Workshop A1, Guangdong Luosen Ventilation Equipment Manufacturing Co., Ltd., No. 6 Desheng Road, Industrial Park, Chengdong Neighborhood Committee, Decheng Street, Deqing County, Zhaoqing City, Guangdong Province, 526600 Patentee after: Guangdong East Ventilation Fan Co.,Ltd. Address before: 523000 No. 2, Sha Wang Road, Hongwu vortex village, Hongmei Town, Dongguan, Guangdong. Patentee before: DONGGUAN GUOTONG VENTILATION EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address |