CN202468363U - Automotive dust exhaust fan for internal combustion engine - Google Patents
Automotive dust exhaust fan for internal combustion engine Download PDFInfo
- Publication number
- CN202468363U CN202468363U CN2012200983540U CN201220098354U CN202468363U CN 202468363 U CN202468363 U CN 202468363U CN 2012200983540 U CN2012200983540 U CN 2012200983540U CN 201220098354 U CN201220098354 U CN 201220098354U CN 202468363 U CN202468363 U CN 202468363U
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- impeller
- fan
- blade
- spiral case
- motor
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Abstract
The utility model relates to an automotive dust exhaust fan for an internal combustion engine. The automotive dust exhaust fan comprises an air inlet, an impeller, a motor, a spiral case and a motor mounting base. The dust exhaust fan is a centrifugal fan; the spiral case is formed by welding a mounting flange, a side plate I, a side plate II and a top plate; the impeller consists of a front wheel plate, a blade, a wheel core and a rear wheel plate; and the blade is wing-shaped. By adopting a technology of the wing-shaped fan with the impeller and the spiral case, an airflow field is optimized and the fan efficiency is improved under the condition that the size of the impeller is limited. As the impeller is in a wing-shaped structure, the blade is wing-shaped, and a reasonable blade outlet angle is selected for use, the acoustic pressure level of the fan within a radius of 30.48m is less than 74dBA and the vibration speed is less than 4.0mm/s. The space and the configuration of the air inlet, the impeller and the spiral case are optimized so that the fan efficiency achieves the highest level and the airflow noise of the fan achieves the lowest level.
Description
Technical field
The utility model relates to a kind of internal combustion locomotive and uses dusting fan, and it is a kind of centrifugal fan.
Background technique
According to the requirement of internal combustion locomotive dusting fan, compressor flow is 1.89m3/s, and static pressure is 1088Pa, apart from the radius planted agent of blower fan 30.48m less than 74dBA, weight is less than 250Kg.According to traditional fan design; Existing blower fan is selected backward inclined blade centrifugal blower pattern usually for use; Because blower fan installing space and power of motor restriction, impeller diameter limited size system during design can not be greater than 410mm; By existing blower fan structure, compressor flow and pressure are difficult to satisfy the requirement of above-mentioned parameter.
Summary of the invention
The purpose of the utility model is to overcome the deficiency and the defective of prior art, provides a kind of simple and compact for structure, easy for installation, and efficient is high, the internal combustion locomotive dusting fan of low noise.
The technological scheme of the utility model: a kind of internal combustion locomotive is used dusting fan; Comprise spiral case, motor, intake grill, impeller, motor mount; It is characterized in that described this dusting fan is a centrifugal fan, the spiral case in the dusting fan comprises mounting flange, side plate one, top board and side plate two, and promptly spiral case inwall molded lines is a log spiral; In the exhaust outlet position, top board snail tongue adopts dark tongue structure;
Described impeller is made up of preceding wheel disc, blade, rear trochal disc and core wheel, and this impeller is a wing formula blade wheel structure, and blade is an airfoil blade;
The bottom of described motor is installed on the motor mount 4 through bolt, and spiral case 1 is welded together with motor mount 4.
Axial distance between the side plate two in the described spiral case 1 and the rear trochal disc of impeller is 15-18mm; Optimum distance is 16mm; The gap of wheel disc is 1.5-2.5mm before intake grill and the impeller, and best clearance is 2mm, and the blade quantity of the blade 11 in the described impeller is 10.
The base of described motor is bolted on the motor dress seat through 4 M10's, and the mounting hole on the motor dress seat is a waist shaped hole, can regulate the gap of impeller and intake grill.
This blower fan has adopted wing type fan impeller to add the spiral case technology, under the limited situation of draught fan impeller, air velocity distribution is further optimized; Fan efficiency and compressor flow pressure have been improved; Blower fan has adopted wing formula blade wheel structure, and blade all adopts wing blades, and selects rational blade outlet angle for use; Make in the radius of 30.48m of blower fan sound pressure level less than 74dBA, and vibration velocity is lower than 4.0mm/s.Draught fan impeller is bolted on the motor shaft through three spindle noses with holes, and motor base is through on four bolt motor mounts, and motor mount bottom and spiral case have improved the rigidity of motor greatly through being welded together, and have reduced the vibration of blower fan.Spiral case is that side plate one, mounting flange, side plate two and top board are welded, and all adopts intensity Q345E material preferably, has guaranteed the bulk strength of blower fan.Impeller has been selected the wing blade receded disk impeller for use, for preceding wheel disc, blade, core wheel, rear trochal disc are welded.Because the excellent aeroperformance of wing blades, intake grill, impeller, volute space optimization configuration optimized design have guaranteed that fan efficiency reaches highest level.
Description of drawings
Fig. 1 is the main TV structure schematic representation of the utility model;
Fig. 2 is the plan structure schematic representation of the utility model;
Among the figure: 1-spiral case, 2-mounting flange, 3-motor, 4-motor mount, 5-intake grill, 6-side plate one, 7-top board, 8-side plate two, wheel disc before the 9-impeller, 10-, 11-blade, 12-rear trochal disc, 13-core wheel.
Embodiment
Referring to accompanying drawing; A kind of internal combustion locomotive is used dusting fan, comprises spiral case 1, motor 3, intake grill 5, impeller 9, motor mount 11, it is characterized in that described this dusting fan is a centrifugal fan; Spiral case 1 in the dusting fan comprises mounting flange 2, side plate 1, top board 7 and side plate 28; Be that spiral case 1 inwall molded lines is a log spiral, in the exhaust outlet position, top board 7 snail tongues adopt dark tongue structure;
Described impeller 9 is made up of preceding wheel disc 10, blade 11, rear trochal disc 12 and core wheel 13, and this impeller 9 is a wing formula blade wheel structure, and blade 4 is an airfoil blade;
The bottom of described motor (3) is installed on the motor mount 4 through bolt, and spiral case 1 is welded together with motor mount 4.
Axial distance between the side plate 28 in the described spiral case 1 and the rear trochal disc 12 of impeller 9 is 16mm, and the preceding wheel disc 10 in the impeller 9 is 2mm with the gap of intake grill 5, and the blade quantity of the blade 11 in the described impeller 9 is 10.
This dusting fan is because the excellent aeroperformance of impeller blade 11 wing blades, and intake grill 5, impeller 9, spiral case 1 spatial optimization have been configured to guarantee most effective at declared working condition point of blower fan, and pneumatic noise reaches floor level.
Claims (2)
1. an internal combustion locomotive is used dusting fan, comprises spiral case (1), motor (3), intake grill (5), impeller (9), motor mount (11), it is characterized in that:
A, described this dusting fan are centrifugal fan; Spiral case in the dusting fan (1) comprises mounting flange (2), side plate one (6), top board (7) and side plate two (8); Be that spiral case (1) inwall molded lines is a log spiral, in the exhaust outlet position, top board (7) snail tongue adopts dark tongue structure;
B, described impeller (9) are made up of preceding wheel disc (10), blade (11), rear trochal disc (12) and core wheel (13), and this impeller (9) is a wing formula blade wheel structure, and blade (4) is an airfoil blade;
The bottom of C, described motor (3) is installed on the motor mount (4) through bolt, and spiral case (1) and motor mount (4) are welded together.
2. a kind of internal combustion locomotive as claimed in claim 1 is used dusting fan; It is characterized in that the axial distance between the rear trochal disc (12) of side plate two (8) and impeller (9) in the described spiral case 1 is 16mm; Preceding wheel disc (10) in the impeller (9) is 2mm with the gap of intake grill (5), and the blade quantity of the blade (11) in the described impeller (9) is 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200983540U CN202468363U (en) | 2012-03-15 | 2012-03-15 | Automotive dust exhaust fan for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200983540U CN202468363U (en) | 2012-03-15 | 2012-03-15 | Automotive dust exhaust fan for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468363U true CN202468363U (en) | 2012-10-03 |
Family
ID=46916524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200983540U Expired - Fee Related CN202468363U (en) | 2012-03-15 | 2012-03-15 | Automotive dust exhaust fan for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640699A (en) * | 2016-11-07 | 2017-05-10 | 镇江市丹徒区粮机厂有限公司 | Efficient dustproof centrifugal fan |
-
2012
- 2012-03-15 CN CN2012200983540U patent/CN202468363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640699A (en) * | 2016-11-07 | 2017-05-10 | 镇江市丹徒区粮机厂有限公司 | Efficient dustproof centrifugal 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: 20121003 Termination date: 20210315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |