CN212130874U - Efficient high-temperature centrifugal fan impeller strength structure - Google Patents
Efficient high-temperature centrifugal fan impeller strength structure Download PDFInfo
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- CN212130874U CN212130874U CN202020560285.5U CN202020560285U CN212130874U CN 212130874 U CN212130874 U CN 212130874U CN 202020560285 U CN202020560285 U CN 202020560285U CN 212130874 U CN212130874 U CN 212130874U
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Abstract
The utility model relates to an efficient impeller strength structure of a high-temperature centrifugal fan, which comprises a fan blade rear disc, wherein a fan blade middle disc is arranged at the left side of the fan blade rear disc, a fan blade front disc is arranged at the left side of the fan blade middle disc, a concave ring is arranged at the right side of the fan blade rear disc, a fan blade hub is fixedly arranged on the fan blade rear disc, a connecting seat is uniformly and fixedly arranged at the left end outside the fan blade hub, a rotary supporting pull rod is fixedly connected onto the connecting seat through a square bolt, the other end of the rotary supporting pull rod is connected with the fan blade front disc, rotary blades are uniformly and fixedly arranged between the fan blade rear disc and the fan blade front disc, the novel fan blade rear disc is integrally pressed into the concave ring to strengthen the rotary strength of the fan blade rear disc, the strength of the fan blade in rotation is increased through the fan blade middle disc, and the rotary supporting pull rod is additionally arranged at the periphery between the fan blade hub and the fan blade front, the service life is longer and more stable in the use under the high-temperature working condition.
Description
Technical Field
The utility model relates to an efficient high temperature centrifugal fan impeller intensity structure belongs to centrifugal fan technical field.
Background
Because of the requirements of furnace design in the non-ferrous industry, large smelting furnaces, heat preserving furnaces and heating furnaces, centrifugal multi-blade rotating impellers with large flow and high pressure are required to be used, the service conditions of the furnace types are severe, such as high use temperature, large smoke medium particles and the like, so that the service life of the fan blade is required to be no less than 18 months, the distortion and deformation of a front disk of the fan blade and the fan blade are easy to occur when the fan blade is used in the prior art, cracks are formed at the root part of the fan blade and a rear disk of the fan blade, and the rear disk of the fan blade is sunken and deformed, so that the fan blade is easy to damage and delay production, thereby bringing unnecessary loss and waste to the production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an efficient high temperature centrifugal fan impeller intensity structure, the rotary strength who strengthens the fan blade rear disc at fan blade rear disc suppression concave ring, disc increases the intensity of wind wheel blade in the rotation through the fan blade, and the while rotation support pull rod can reduce the centripetal force that the fan blade produced in the rotation, and is more steady in the use under the high temperature operating mode, and life is more permanent to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an efficient high temperature centrifugal fan impeller intensity structure, includes the fan blade back plate, fan blade back plate left side is provided with fan blade center pan, fan blade center pan left side is provided with the fan blade front plate, fan blade back plate right side is opened and is equipped with the concave ring, the fixed fan wheel hub that is provided with on the fan blade back plate, the even fixed connecting seat that is provided with of fan wheel hub outside left end, through the rotatory support pull rod of square bolt fixedly connected with on the connecting seat, the rotatory support pull rod other end is connected with the fan blade front plate, evenly fixed rotating vane that is provided with between fan blade back plate and the fan blade front plate.
Furthermore, the central shafts of the fan blade rear disc, the fan blade middle disc, the fan blade front disc and the fan blade hub are positioned on the same axis.
Furthermore, the fan blade middle disc is positioned in the middle of the fan blade rear disc and the fan blade front disc.
Furthermore, the concave ring is positioned on the outer side of the fan impeller hub, and the center of the fan impeller hub is provided with a connecting hole.
Furthermore, the rotary supporting pull rods are located in the rotary blades and are all obliquely arranged.
Furthermore, the rotating blades are connected with the fan blade rear disc, the fan blade middle disc and the fan blade front disc in a welding mode.
The utility model has the advantages that:
1. the fan blade rear disc is provided with the concave ring, the flat plate type rear disc is changed into a structure with a small middle circular arc concave inwards, and the fan blade rear disc is integrally pressed, so that the use strength of the fan blade rear disc is greatly enhanced, the fan blade rear disc is not deformed when rotating at high temperature and high speed, and the stability of balance is kept for a long time;
2. the size of the width direction of the blade of the impeller is increased by arranging the rotary blades, namely the height of the rotary blades of the fan blade is large, so that a fan blade middle disc is added on the blade structure, and the blades are welded by adopting a slotted embedded connecting structure, so that the rotary strength of the fan blade is greatly enhanced;
3. through the arrangement of the rotary supporting pull rod, 6 screw pull rods are arranged on the periphery of the impeller and are stretched in the direction opposite to the rotation direction of the impeller to generate a reaction force, the centripetal force generated by the rotation of the impeller is reduced, and the rotation strength of the fan blade is enhanced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an efficient impeller strength structure of a high-temperature centrifugal fan according to the present invention;
fig. 2 is a left side view schematically illustrating the strength structure of the high-efficiency high-temperature centrifugal fan impeller of the present invention;
fig. 3 is a right-side schematic view of the strength structure of the high-efficiency high-temperature centrifugal fan impeller of the present invention;
reference numbers in the figures: 1. a rear fan blade disc; 2. a fan blade middle disc; 3. a front fan blade disc; 4. a concave ring; 5. a wind impeller hub; 6. a connecting seat; 7. a square bolt; 8. rotating the support pull rod; 9. a rotating blade; 10. and connecting the holes.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a high-efficiency impeller strength structure of a high-temperature centrifugal fan comprises a fan blade rear disc 1, a fan blade middle disc 2 is arranged on the left side of the fan blade rear disc 1, a fan blade front disc 3 is arranged on the left side of the fan blade middle disc 2, a concave ring 4 is arranged on the right side of the fan blade rear disc 1, the concave ring 4 is arranged on the fan blade rear disc 1, a flat plate type rear disc is changed into a structure with a small middle arc concave inwards, the structure is integrally pressed, the use strength of the fan blade rear disc 1 is greatly enhanced, the fan blade rear disc is not deformed in high-temperature and high-speed rotation and keeps balanced stability for a long time, a fan blade hub 5 is fixedly arranged on the fan blade rear disc 1, connecting seats 6 are uniformly and fixedly arranged at the left end of the outer side of the fan blade hub 5, rotating support pull rods 8 are fixedly connected to the connecting seats 6 through square bolts 7, the other ends of the rotating support pull rods 8, the impeller is stretched reversely to the rotation direction of the impeller to generate a reaction force, the centripetal force generated by the rotation of the impeller is reduced, and the rotation strength of the fan blade is also enhanced, the rotating blades 9 are uniformly and fixedly arranged between the rear disk 1 and the front disk 3 of the fan blade, the width direction size of the rotating blades 9 of the impeller is increased, namely the height of the rotating blades 9 of the fan blade is large, so that the middle disk of the fan blade is added on the blade structure, and the blades are welded by adopting a slotted embedded connecting structure, so that the rotation strength of the fan blade is greatly enhanced.
More specifically, the center pin of fan blade rear disk 1, fan blade middle disk 2, fan blade front disk 3, fan blade wheel hub 5 is in same axis, fan blade middle disk 2 is located the positive centre of fan blade rear disk 1 and fan blade front disk 3, concave ring 4 is located the fan blade wheel hub 5 outside, just connecting hole 10 has been seted up at fan blade wheel hub 5 center, rotatory support pull rod 8 is located rotating vane 9, just rotatory support pull rod 8 all cuts the oblique setting, rotating vane 9 all passes through welded mode with fan blade rear disk 1, fan blade middle disk 2, fan blade front disk 3 and connects.
The utility model discloses the theory of operation: adopt neotype fan blade rear disk 1 whole suppression concave ring 4 to strengthen the rotary strength of fan blade rear disk 1, add in the middle of the blade and weld a fan blade center (2) and increase the intensity of wind wheel blade in the rotation, install rotatory support pull rod 8 additional at 3 intervals circles between wind impeller hub 5 and fan blade front bezel simultaneously and reduce the centripetal force that the fan blade produced in the rotation, it is more steady in the use under the high temperature operating mode, life is more permanent.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides an efficient high temperature centrifugal fan impeller intensity structure, includes fan blade back plate (1), its characterized in that: the fan blade is characterized in that a fan blade middle disc (2) is arranged on the left side of a fan blade rear disc (1), a fan blade front disc (3) is arranged on the left side of the fan blade middle disc (2), a concave ring (4) is arranged on the right side of the fan blade rear disc (1), a fan blade hub (5) is fixedly arranged on the fan blade rear disc (1), a connecting seat (6) is uniformly and fixedly arranged at the left end of the outer side of the fan blade hub (5), a rotary supporting pull rod (8) is fixedly connected onto the connecting seat (6) through a square bolt (7), the other end of the rotary supporting pull rod (8) is connected with the fan blade front disc (3), and rotary blades (9) are uniformly and fixedly arranged between the fan blade rear disc (1) and the fan.
2. The structure of claim 1, wherein the structure comprises: the central shafts of the fan blade rear disc (1), the fan blade middle disc (2), the fan blade front disc (3) and the fan blade hub (5) are positioned on the same axis.
3. The structure of claim 1, wherein the structure comprises: the fan blade middle disc (2) is positioned in the middle of the fan blade rear disc (1) and the fan blade front disc (3).
4. The structure of claim 1, wherein the structure comprises: the concave ring (4) is positioned on the outer side of the wind impeller hub (5), and a connecting hole (10) is formed in the center of the wind impeller hub (5).
5. The structure of claim 1, wherein the structure comprises: the rotary supporting pull rods (8) are positioned in the rotary blades (9), and the rotary supporting pull rods (8) are all obliquely arranged.
6. The structure of claim 1, wherein the structure comprises: the rotary blades (9) are connected with the fan blade rear disc (1), the fan blade middle disc (2) and the fan blade front disc (3) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020560285.5U CN212130874U (en) | 2020-04-15 | 2020-04-15 | Efficient high-temperature centrifugal fan impeller strength structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020560285.5U CN212130874U (en) | 2020-04-15 | 2020-04-15 | Efficient high-temperature centrifugal fan impeller strength structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212130874U true CN212130874U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020560285.5U Active CN212130874U (en) | 2020-04-15 | 2020-04-15 | Efficient high-temperature centrifugal fan impeller strength structure |
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| Country | Link |
|---|---|
| CN (1) | CN212130874U (en) |
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2020
- 2020-04-15 CN CN202020560285.5U patent/CN212130874U/en active Active
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