CN201827148U - Front cover plate of impeller - Google Patents
Front cover plate of impeller Download PDFInfo
- Publication number
- CN201827148U CN201827148U CN2010202743928U CN201020274392U CN201827148U CN 201827148 U CN201827148 U CN 201827148U CN 2010202743928 U CN2010202743928 U CN 2010202743928U CN 201020274392 U CN201020274392 U CN 201020274392U CN 201827148 U CN201827148 U CN 201827148U
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- CN
- China
- Prior art keywords
- impeller
- front cover
- cover plate
- front shroud
- bottom edge
- 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.)
- Expired - Lifetime
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Abstract
A front cover plate of an impeller relates to the technical field of front cover plates of centrifugal fan impellers, in particular to the technical field of front cover plates at inlets of the impellers. The front cover plate of an impeller comprises a front cover plate body, the section of the front cover plate body is trapezoidal, the upper bottom edge of the front cover plate body faces the impeller, and sides for connecting the upper bottom edge with the lower bottom edge of the front cover plate body are in arc shapes. The front cover plate of an impeller is characterized in that connecting portions of the upper bottom edge and the sides are respectively provided with a right-angle triangular reinforcing block, and the inclined edges of the right-angle triangular reinforcing blocks match with the sides. The front cover plate achieves the purposes of simple structure, high strength and convenience in processing and manufacturing.
Description
Technical field
The utility model relates to the technical field of Centrifugal Fan Impeller front shroud, relates in particular to the technical field of the front shroud at impeller eye place.
Background technique
Centrifugal Fan Impeller when rotation, the thickness of front shroud of impeller there is certain requirement.The rotating speed of impeller rotation is high more, equal impeller diameter condition of equivalent thickness front shroud of impeller, and thickness is more little, and then front shroud is got over easy deformation, causes impeller to damage.So should increase front shroud of impeller thickness or the impeller protecgulum is carried out reinforcement.
By impeller is carried out force analysis, front shroud of impeller intensity biggest place is impeller wind inlet place.If whole impeller is increased thickness, must cause the waste of material, increase cost.Now generally carry out the front shroud of impeller part and increase the requirement of strength that thickness satisfies front shroud of impeller.Really like this, under situation to a certain degree, meet the demands, also reduced waste of material unnecessary.But just increased thickness, do not changed the spacing between the strong point between front shroud of impeller.On equal extent, it is more obvious to change gap ratio increase sheet thickness effect.
Summary of the invention
The utility model purpose provides a kind of simple in structure, front shroud intensity height, the front shroud of impeller of convenient processing and manufacture.
A kind of front shroud of impeller, comprise the front shroud body, the cross section of front shroud body is trapezoidal, last base is towards impeller, the waist of base and bottom is curved in the connection, the joint that it is characterized in that base and waist is provided with the right-angled triangle reinforced block respectively, and the hypotenuse and the waist of right-angled triangle reinforced block are complementary.
Weld between right-angled triangle reinforced block of the present utility model and the waist.
The utility model adopts technique scheme, compared with prior art has following advantage: the utility model is welded on front shroud of impeller wind inlet place with the material webs circle that is similar in angle steel.Full weld welding between two angles of hornblock and front shroud of impeller face.When reducing cost, reach the purpose that strengthens front shroud intensity, simultaneously simple in structure, for processing and manufacturing, more convenient.Two angles of dihedral reinforced block and front shroud of impeller welding, being equivalent to has increased by two fulcrums at front shroud of impeller requirement of strength highest point, and the spacing between two fulcrums is very little, and same sheet thickness is not easy distortion more.So increased the intensity of front shroud of impeller ingress.Dihedral reinforced block and front shroud of impeller face form triangle, have stability, more help the intensity of front shroud of impeller ingress.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated:
As shown in Figure 1 and Figure 2, a kind of front shroud of impeller, comprise front shroud body 1, the cross section of front shroud body 1 is trapezoidal, last base 11 is towards impeller 2, base 11 is curved with the waist 13 of bottom 12 in the connection, it is characterized in that the base 11 and the joint of waist 13 are provided with right-angled triangle reinforced block 14 respectively, and the hypotenuse of right-angled triangle reinforced block 14 and waist 13 are complementary.
As shown in Figure 1, welding between right-angled triangle reinforced block 14 of the present utility model and the waist 13.Manufacturing and easy to process, long service life.
Claims (2)
1. front shroud of impeller, comprise front shroud body (1), the cross section of front shroud body (1) is trapezoidal, last base (11) is towards impeller (2), base in the connection (11) is curved with the waist (13) of bottom (12), it is characterized in that the base (11) and the joint of waist (13) are provided with right-angled triangle reinforced block (14) respectively, the hypotenuse of right-angled triangle reinforced block (14) and waist (13) are complementary.
2. front shroud of impeller according to claim 1 is characterized in that welding between above-mentioned right-angled triangle reinforced block (14) and the waist (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202743928U CN201827148U (en) | 2010-07-28 | 2010-07-28 | Front cover plate of impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202743928U CN201827148U (en) | 2010-07-28 | 2010-07-28 | Front cover plate of impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827148U true CN201827148U (en) | 2011-05-11 |
Family
ID=43965687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202743928U Expired - Lifetime CN201827148U (en) | 2010-07-28 | 2010-07-28 | Front cover plate of impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827148U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975192A (en) * | 2010-07-28 | 2011-02-16 | 苏州顶裕节能设备有限公司 | Impeller front cover plate |
| US10569744B2 (en) | 2014-12-19 | 2020-02-25 | Robert Bosch Gmbh | Windshield wiper device |
| US10632973B2 (en) | 2014-12-19 | 2020-04-28 | Robert Bosch Gmbh | Windshield wiper device |
-
2010
- 2010-07-28 CN CN2010202743928U patent/CN201827148U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975192A (en) * | 2010-07-28 | 2011-02-16 | 苏州顶裕节能设备有限公司 | Impeller front cover plate |
| US10569744B2 (en) | 2014-12-19 | 2020-02-25 | Robert Bosch Gmbh | Windshield wiper device |
| US10632973B2 (en) | 2014-12-19 | 2020-04-28 | Robert Bosch Gmbh | Windshield wiper device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |