CN212250572U - Impeller of turbine fan - Google Patents
Impeller of turbine fan Download PDFInfo
- Publication number
- CN212250572U CN212250572U CN202020865321.9U CN202020865321U CN212250572U CN 212250572 U CN212250572 U CN 212250572U CN 202020865321 U CN202020865321 U CN 202020865321U CN 212250572 U CN212250572 U CN 212250572U
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- cover plate
- blades
- protective sleeve
- blade
- upper cover
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- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Abstract
The utility model discloses a turbine fan impeller, which comprises a first-stage air suction fan blade, a second-stage supercharging blade, a third-stage supercharging blade, an upper cover plate and a lower cover plate; the lower ends of the central tube and the protective sleeve are fixedly connected to the lower cover plate, the protective sleeve is concentrically sleeved outside the central tube, and the secondary supercharging blades and the tertiary supercharging blades are uniformly distributed on the lower cover plate at intervals by taking the protective sleeve as a center; the center of the upper cover plate is provided with a through hole type trepanning, the upper cover plate is arranged on the lower cover plate, the secondary supercharging blade and the tertiary supercharging blade, and the protective sleeve penetrates through the trepanning; the first-stage air suction fan blades are uniformly distributed in the positions inside the protective sleeve, outside the central pipe and above the upper cover plate by taking the central pipe as a center; at least three longitudinal connecting strips are uniformly distributed between the edges of the upper cover plate and the lower cover plate, and the pressure and the flow of the air outlet of the turbine fan are improved by increasing the air inlet efficiency and the air compression efficiency, so that the pressure and the flow output are improved under the condition of not increasing the rotating speed.
Description
Technical Field
The utility model belongs to the technical field of the fan, especially, relate to a turbofan impeller.
Background
At present, when a breathing machine is used for mechanically ventilating people, the provided air flow is generated by a turbine fan, and the turbine fan needs to rely on a high-speed rotating impeller to generate high-pressure air flow. The efficiency of the air suction and the air compression of the impeller directly influences the performance of the turbine fan. The impeller used in the prior art has the diameter of about 50 mm, is a single blade-shaped 5 blades, has the rotating speed of about 35000 revolutions, can generate the flow of about 400L/min of pressure of about 4.3KPa, and can only improve the pressure flow by increasing the power and the rotating speed of the brushless motor, so that the heat generation of the motor is increased, and the service life of the brushless motor is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model provides a turbofan impeller to provide a compound leaf shape, many blades, thereby solve that prior art exists can only improve pressure flow through increasing brushless motor power and rotational speed, lead to increasing the problem that generates heat and reduce the brushless motor life-span of motor, make its output that improves pressure and flow under the condition that does not increase the rotational speed.
In order to achieve the above object, the utility model adopts the following technical scheme:
a turbine fan impeller comprises at least two first-stage suction fan blades (1), at least two second-stage supercharging blades (2), at least two third-stage supercharging blades (3), an upper cover plate (4) and a lower cover plate (5); the lower ends of a longitudinal tubular central tube (501) and a longitudinal tubular protective sleeve (502) are fixedly connected to the lower cover plate (5), the protective sleeve (502) is concentrically sleeved outside the central tube (501), and the central tube (501) is superposed with the longitudinal central line of the lower cover plate (5); the two-stage supercharging blades (2) and the three-stage supercharging blades (3) are uniformly distributed on the lower cover plate (5) at intervals by taking the protective sleeve (502) as the center; a through hole type trepanning is arranged in the center of the upper cover plate (4), the upper cover plate (4) is arranged on the lower cover plate (5), the secondary supercharging blade (2) and the tertiary supercharging blade (3), and the protective sleeve (502) penetrates through the trepanning; the first-stage air suction fan blades (1) are uniformly distributed in the protective sleeve (502), outside the central tube (501) and above the upper cover plate (4) by taking the central tube (501) as a center; at least three longitudinal connecting strips (401) are uniformly distributed and connected between the edges of the upper cover plate (4) and the lower cover plate (5).
The utility model discloses a turbofan impeller, the upper end of its one-level air suction fan blade (1) constitutes the air inlet, constitutes the gas outlet by every adjacent second grade supercharging blade (2) of one-level air suction fan blade (1) lower extreme and tertiary supercharging blade (3) and upper cover plate (4) and lower apron (5).
The utility model discloses a turbo fan impeller, one-level air suction fan blade (1) are six. Six secondary supercharging blades (2) and six tertiary supercharging blades (3) are arranged respectively. The inner side of the two-stage supercharging blade (2) is connected with the outer wall of the protective sleeve (502). The inner side of the three-stage supercharging blade (3) is not connected with the outer wall of the protective sleeve (502).
The utility model discloses a turbofan impeller, connecting strip (401) are L shape structure, and the bottom of the lower extreme transverse part of connecting strip (401) apron (5) is connected with it under. The bottom of the lower cover plate (5) is provided with an upward sunken connecting groove, and the lower end transverse part of the connecting strip (401) is connected in the connecting groove. The upper end of the connecting strip (401) is fixedly connected with the upper cover plate (4).
The utility model discloses can reach following beneficial effect:
the utility model discloses a turbofan impeller, it provides a compound leaf shape, many blades, solves that prior art exists can only improve pressure flow through increasing brushless motor power and rotational speed, leads to generating heat and reducing the problem in brushless motor life-span of increase motor, and its gas outlet pressure and flow through increasing the efficiency of admitting air and the efficiency improvement turbofan of calming anger make its output that improves pressure and flow under the condition that does not increase the rotational speed.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic view of the appearance structure of the impeller of the turbine fan according to the present invention.
Fig. 2 is a schematic structural view of the lower cover plate of the impeller of the turbine fan according to the present invention.
Fig. 3 is a front view of the impeller of the turbine fan of the present invention.
Fig. 4 is a top view of a turbofan according to the present invention.
3 fig. 35 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 the 3 impeller 3 of 3 the 3 turbofan 3 of 3 the 3 present 3 invention 3 shown 3 in 3 fig. 3 3 3. 3
In the figure, 1 is a first-stage air suction fan blade, 2 is a second-stage supercharging blade, 3 is a third-stage supercharging blade, 4 is an upper cover plate, 401 is a connecting strip, 5 is a lower cover plate, 501 is a central pipe, and 502 is a protective sleeve.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
A turbofan wheel, see fig. 1, comprising at least two primary suction fan blades 1, at least two secondary supercharging blades 2, at least two tertiary supercharging blades 3, an upper cover plate 4 and a lower cover plate 5; referring to fig. 2, the lower ends of a longitudinal tubular central tube 501 and a longitudinal tubular protective sleeve 502 are fixedly connected to the lower cover plate 5, the protective sleeve 502 is concentrically sleeved outside the central tube 501, and the central tube 501 is overlapped with the longitudinal center line of the lower cover plate 5; the two-stage supercharging blades 2 and the three-stage supercharging blades 3 are uniformly distributed on the lower cover plate 5 at intervals by taking the protective sleeve 502 as the center; referring to fig. 3 and 5, a through-hole type trepanning is arranged at the center of the upper cover plate 4, the upper cover plate 4 is arranged on the lower cover plate 5, the secondary supercharging blade 2 and the tertiary supercharging blade 3, and the protective sleeve 502 penetrates through the trepanning; referring to fig. 4, the first stage suction fan blades 1 are uniformly distributed and installed in the protective sleeve 502, outside the central tube 501 and above the upper cover plate 4 with the central tube 501 as the center; at least three longitudinal connecting strips 401 are uniformly distributed between the edges of the upper cover plate 4 and the lower cover plate 5.
In another embodiment, the upper end of the first-stage air suction fan blade 1 forms an air inlet, and the lower end of the first-stage air suction fan blade 1 forms an air outlet by the adjacent two-stage supercharging blade 2 and three-stage supercharging blade 3, the upper cover plate 4 and the lower cover plate 5.
In another embodiment, the number of primary air suction fan blades 1 is six.
In another embodiment, there are six secondary and tertiary boost vanes 2 and 3, respectively.
In another embodiment, the inner side of the secondary supercharging blade 2 is connected to the outer wall of the protective sleeve 502.
In another embodiment, the inner side of the three stage supercharging blade 3 is separated from the outer wall of the protective sleeve 502.
In the impeller of the turbo fan of the present embodiment, the first-stage suction fan blades 1 may be triangular blades that are spirally distributed. The two-stage supercharging blade 2 and the three-stage supercharging blade 3 can be strip-shaped blades distributed in a spiral manner, the number of the connecting strips 401 can be equal to the total number of the two-stage supercharging blade 2 and the three-stage supercharging blade 3, and the connecting strips 401 can be respectively connected with the end parts of the two-stage supercharging blade 2 and the three-stage supercharging blade 3; the upper cover plate 4 and the lower cover plate 5 may be both original plates. The diameters of the upper cover plate 4 and the lower cover plate 5 can be equal, and the longitudinal center lines of the upper cover plate and the lower cover plate coincide. The protective casing 502 and the central tube 501 may both be round tubes and the height of the protective casing 502 may be less than the height of the central tube 501. The connecting bar 401 may be a rectangular bar.
Example 2
In the impeller of the turbo fan described in embodiment 1, the connecting bar 401 has an L-shaped structure, and the lower end lateral portion of the connecting bar 401 is connected to the lower cover plate 5 at the bottom thereof.
In another embodiment, the bottom of the lower cover plate 5 is provided with an upwardly recessed coupling groove into which the lower lateral portion of the coupling bar 401 is coupled.
In another embodiment, the upper end of the connection bar 401 is fixedly connected to the upper cover plate 4.
The bottom of the impeller of the turbofan according to the above embodiment may be fixedly mounted on the impeller bottom cover. The whole plastic construction that can be of impeller, it can be injection moulding integrated into one piece structure, and this impeller can drive the rotation through brushless motor and produce the air current, and it can produce higher air pressure and flow in the impeller of prior art under the same condition than.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A turbine fan impeller comprises at least two first-stage suction fan blades (1), at least two second-stage supercharging blades (2), at least two third-stage supercharging blades (3), an upper cover plate (4) and a lower cover plate (5); the device is characterized in that the lower ends of a longitudinal tubular central tube (501) and a longitudinal tubular protective sleeve (502) are fixedly connected to a lower cover plate (5), the protective sleeve (502) is concentrically sleeved outside the central tube (501), and the central tube (501) is superposed with the longitudinal central line of the lower cover plate (5); the two-stage supercharging blades (2) and the three-stage supercharging blades (3) are uniformly distributed on the lower cover plate (5) at intervals by taking the protective sleeve (502) as the center; a through hole type trepanning is arranged in the center of the upper cover plate (4), the upper cover plate (4) is arranged on the lower cover plate (5), the secondary supercharging blade (2) and the tertiary supercharging blade (3), and the protective sleeve (502) penetrates through the trepanning; the first-stage air suction fan blades (1) are uniformly distributed in the protective sleeve (502), outside the central tube (501) and above the upper cover plate (4) by taking the central tube (501) as a center; at least three longitudinal connecting strips (401) are uniformly distributed and connected between the edges of the upper cover plate (4) and the lower cover plate (5).
2. The turbofan wheel according to claim 1 wherein the upper end of the primary suction fan blade (1) forms the air inlet, and the lower end of the primary suction fan blade (1) forms the air outlet by the adjacent two-stage supercharging blade (2) and three-stage supercharging blade (3) and the upper cover plate (4) and the lower cover plate (5).
3. Turbofan wheel according to claim 1, characterized in that the number of primary suction fan blades (1) is six.
4. The turbofan wheel according to claim 3 wherein there are six secondary (2) and three tertiary (3) boost blades.
5. The turbofan wheel according to claim 1 characterized in that the inner side of the secondary booster blade (2) is connected to the outer wall of the protective sleeve (502).
6. The turbofan wheel according to claim 5 characterized in that the inner side of the tertiary supercharging blade (3) is separated from the outer wall of the protective sleeve (502).
7. The turbofan wheel according to claim 1 characterized in that the primary suction fan blades (1), the secondary booster blades (2) and the tertiary booster blades (3) are helically distributed.
8. The turbofan wheel of claim 1 wherein the tie bar (401) is of L-shaped configuration, the lower transverse portion of the tie bar (401) being connected to the lower shroud (5) at the bottom thereof.
9. The turbofan wheel according to claim 8 wherein the bottom of the lower shroud (5) is provided with an upwardly recessed attachment slot into which the lower transverse portion of the attachment bar (401) is attached.
10. The turbofan wheel of claim 8 wherein the upper end of the tie bar (401) is fixedly connected to the upper shroud (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020865321.9U CN212250572U (en) | 2020-05-21 | 2020-05-21 | Impeller of turbine fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020865321.9U CN212250572U (en) | 2020-05-21 | 2020-05-21 | Impeller of turbine fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250572U true CN212250572U (en) | 2020-12-29 |
Family
ID=73975452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020865321.9U Expired - Fee Related CN212250572U (en) | 2020-05-21 | 2020-05-21 | Impeller of turbine fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118309671A (en) * | 2024-05-24 | 2024-07-09 | 山东飞耐泵业有限公司 | High-speed turbine type vacuum pump |
-
2020
- 2020-05-21 CN CN202020865321.9U patent/CN212250572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118309671A (en) * | 2024-05-24 | 2024-07-09 | 山东飞耐泵业有限公司 | High-speed turbine type vacuum pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |