CN104564813A - Impeller structure of air exhaust fan - Google Patents
Impeller structure of air exhaust fan Download PDFInfo
- Publication number
- CN104564813A CN104564813A CN201310515082.9A CN201310515082A CN104564813A CN 104564813 A CN104564813 A CN 104564813A CN 201310515082 A CN201310515082 A CN 201310515082A CN 104564813 A CN104564813 A CN 104564813A
- Authority
- CN
- China
- Prior art keywords
- impeller
- blade
- shaft
- exhaust fan
- impeller shaft
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Abstract
The invention belongs to the technical field of air exhaust fan structures, and particularly provides an impeller structure of an air exhaust fan, which mainly aims at solving the technical problems of the impeller of the air exhaust fan that the service life is short under the condition of additional load and a motor is damaged because of splashing of condensing water. The impeller structure of the air exhaust fan comprises a shaft sleeve, wherein an inverted conical impeller shaft is arranged at the front end of the shaft sleeve, the radius of the tail end of the impeller shaft is smaller than the radius of a driving shaft, blades are arranged at the frontmost end of the impeller shaft, a water rejection wheel is arranged at the tailmost end of the impeller shaft, a cushion block is arranged between the water rejection wheel and each blade, each blade is fixedly arranged on the impeller shaft through a flange, each blade and the flange are fixedly connected by a tightening screw, and each blade and the water rejection wheel are in interference fit with the impeller shaft. The impeller structure has the advantages that the running service life of the impeller of the air exhaust fan under the condition of additional load is effectively prolonged, the motor is effectively protected, and the whole service life of the equipment is prolonged.
Description
Technical field
The invention belongs to exhaust blower structure technical field, relate to a kind of exhaust fan impeller structure specifically.
Background technique
The kernel component that impeller is arranged as the machinery such as ventilator and air bells exhauster, the general Placement all directly adopting impeller hub directly to coordinate with transmission shaft, under adopting such Placement to have the condition of plus load in size restrictions and structural requirement, general working life is low, and the direct serious wear of structure, in practical application in summer, in blower fan, majority can produce condensed water, can be spilt by Blower Housing and the direct gap of transmission shaft, and direct splash is on motor, the corrosion of speed motor can be added, the short circuit of motor may be caused time serious to burn, there is great potential safety hazard.
Summary of the invention
Goal of the invention of the present invention:
Mainly in order to improve the working life of exhaust fan impeller under the condition having plus load, and prevent from air bells exhauster condensed water from splashing damaging the technical problem of motor.
Technological scheme of the present invention is:
Provide a kind of exhaust fan impeller structure, comprise axle sleeve, the impeller shaft of inverted cone is provided with and the tip radius of impeller shaft is less than the radius of transmission shaft in the front end of transmission shaft, blade is provided with foremost at impeller shaft, the least significant end of impeller shaft is provided with water dumping wheel, and between water dumping wheel and blade, be provided with cushion block, blade is fixed on impeller shaft by flange, be fixedly connected with by fastening screw trip bolt between blade with flange, blade and water dumping wheel coordinate with the connection of impeller shaft and all belong to interference fit.
The invention has the beneficial effects as follows:
Effectively raise the working life of exhaust fan impeller under plus load, prevent condensed water to splash infringement motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1 is axle sleeve, 2 for water dumping wheel, 3 be cushion block, 4 for blade, 5 for impeller shaft, 6 for flange, 7 be fastening screw trip bolt.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As shown in Figure 1, provide a kind of exhaust fan impeller structure, comprise axle sleeve 1, the impeller shaft 5 of inverted cone is provided with in the front end of axle sleeve 1, for the ease of the assembling between transmission shaft and impeller shaft, the tip radius of impeller shaft 5 is less than the radius of transmission shaft 1, at the blade 4 being provided with blower fan foremost of impeller shaft 5, the least significant end of impeller shaft 5 is provided with water dumping wheel 2, when condensed water splashes out by water dumping wheel throwing away condensed water high speed, thus effectively protect the safe operation of motor, cushion block 3 is provided with between water dumping wheel 2 and blade 4, water dumping wheel is effectively fixed on impeller the tip of the axis by it, blade 4 is fixed on impeller shaft 5 by flange 6, be fixedly connected with by fastening screw trip bolt 7 between blade 4 with flange 6, blade and water dumping wheel coordinate with the connection of impeller shaft and all belong to interference fit, the present invention is simple and practical, effectively raise the running life of draught fan impeller when there is plus load, effectively protect motor, improve the bulk life time of equipment.
Claims (3)
1. a blade wheel structure, comprise axle sleeve, it is characterized in that: be provided with the impeller shaft of inverted cone in the front end of axle sleeve and the tip radius of impeller shaft is less than the radius of transmission shaft, blade is provided with foremost at impeller shaft, the least significant end of impeller shaft is provided with water dumping wheel, between water dumping wheel and blade, be provided with cushion block, blade is fixed on impeller shaft by flange.
2. blade wheel structure according to claim 1, be is characterized in that: be fixedly connected with by fastening screw trip bolt between blade with flange.
3. blade wheel structure according to claim 1, is characterized in that: the connection of blade and water dumping wheel and impeller shaft all belongs to interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515082.9A CN104564813A (en) | 2013-10-28 | 2013-10-28 | Impeller structure of air exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515082.9A CN104564813A (en) | 2013-10-28 | 2013-10-28 | Impeller structure of air exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564813A true CN104564813A (en) | 2015-04-29 |
Family
ID=53081661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310515082.9A Pending CN104564813A (en) | 2013-10-28 | 2013-10-28 | Impeller structure of air exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017016078A1 (en) * | 2015-07-30 | 2017-02-02 | 南通大通宝富风机有限公司 | Corrosion-resistant spindle structure |
-
2013
- 2013-10-28 CN CN201310515082.9A patent/CN104564813A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017016078A1 (en) * | 2015-07-30 | 2017-02-02 | 南通大通宝富风机有限公司 | Corrosion-resistant spindle structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |