CN218913259U - Duplex centrifugal wind wheel and air duct machine using same - Google Patents
Duplex centrifugal wind wheel and air duct machine using same Download PDFInfo
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- CN218913259U CN218913259U CN202223374968.XU CN202223374968U CN218913259U CN 218913259 U CN218913259 U CN 218913259U CN 202223374968 U CN202223374968 U CN 202223374968U CN 218913259 U CN218913259 U CN 218913259U
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Abstract
The utility model relates to the technical field of centrifugal wind wheels, in particular to a duplex centrifugal wind wheel and an air duct machine using the duplex centrifugal wind wheel. A duplex centrifugal wind wheel comprises a first wind wheel and a second wind wheel; the first wind wheel comprises a first frame, a hub and a plurality of first blades, the first frame is in a circular ring shape, the hub is arranged on the inner side of the first frame, and the plurality of first blades are arranged on the first frame at intervals; the second wind wheel comprises a second frame, a middle plate and a plurality of second blades, wherein the second frame and the middle plate are all annular, and the second blades are arranged between the middle plate and the second frame at intervals. The duplex centrifugal wind wheel can be installed with a plurality of centrifugal wind wheels even though the length of the driving shaft of the motor is short, and the technical problem that the length of the required driving shaft is long and the motor cannot be adopted to drive the plurality of wind wheels to rotate due to the fact that the through hole for installing the driving shaft of the motor in the existing centrifugal wind wheel is arranged at the position of the middle plate is solved.
Description
Technical Field
The utility model relates to the technical field of centrifugal wind wheels, in particular to a duplex centrifugal wind wheel and an air duct machine using the duplex centrifugal wind wheel.
Background
In the duplex centrifugal wind wheel that present tuber pipe machine used, the through-hole that supplies the drive shaft installation of motor sets up in duplex centrifugal wind wheel's medium plate position for when the drive shaft of motor and a plurality of duplex centrifugal wind wheel installation, need stretch into the medium plate position of duplex centrifugal wind wheel and just can realize the installation, consequently the length of the drive shaft of required motor is longer, be limited by the length of the drive shaft of motor, can't adopt a plurality of wind wheels of motor drive to rotate, need increase the driving piece in order to promote the intake, this mode can lead to the motor cost increase of tuber pipe machine, and lead to the structure increase and the structure of tuber pipe machine more complicated.
Disclosure of Invention
Aiming at the problems of the background technology, the utility model aims to provide a duplex centrifugal wind wheel, the length of a driving shaft of a motor can be installed with a plurality of centrifugal wind wheels even if the driving shaft is shorter, and the technical problems that a through hole for installing the driving shaft of the motor in the existing centrifugal wind wheel is arranged at a middle plate position, the required driving shaft is longer, and the motor cannot be adopted to drive the plurality of wind wheels to rotate are solved.
The utility model further aims to provide the air duct machine with the double centrifugal wind wheels, which can drive a plurality of double centrifugal wind wheels to rotate by one motor without adding driving parts, so that the air duct machine is simpler in structure, ensures the air intake of products, effectively reduces the cost, and solves the technical problems that the existing air duct machine needs to be added with the driving parts to improve the air intake, and is complex in structure and high in cost.
To achieve the purpose, the utility model adopts the following technical scheme:
a duplex centrifugal wind wheel comprises a first wind wheel and a second wind wheel;
the first wind wheel comprises a first frame, a hub and a plurality of first blades, the first frame is in a circular ring shape, the hub is arranged on the inner side of the first frame, and the plurality of first blades are arranged on the first frame at intervals;
the second wind wheel comprises a second frame, a middle plate and a plurality of second blades, the second frame and the middle plate are all annular, the second blades are arranged between the middle plate and the second frame at intervals, one end of each first blade is connected with the first frame, and the other end of each first blade is connected with the middle plate;
the wheel hub is towards keeping away from one side protrusion setting of second wind wheel, wheel hub's center is equipped with the installation axle core, the through-hole has been seted up in the extending direction of self run through to the installation axle core, the through-hole is used for installing the drive shaft of motor.
Further stated, the side wall of the installation shaft core is provided with an installation hole in a penetrating way, and the installation hole is communicated with the through hole.
Further stated, one end of the first blade is connected to the first frame, and the other end of the first blade is welded to the middle plate.
Further stated, the hub includes a plurality of annularly distributed intermediate baffles, and air guide holes are formed between two adjacent intermediate baffles.
Further, the vertical projection shape of the air guide hole is a sector, and the distance D between the maximum radius R of the air guide hole and the first blade is more than or equal to 2mm.
Further described, the width H of the middle partition plate is more than or equal to 18mm.
Further stated, the said middle baffle has the first side and the second side along the two sides of the said first side of circumference direction, the said first side and the said second side included angle is included angle alpha, wherein 10 degrees < a < 30 degrees.
Further stated, the distance between the end face of the first frame far away from the second wind wheel and the end face of the second frame far away from the first wind wheel is wind path height L, and the wind path height L is less than or equal to 150mm.
The air duct machine is provided with the duplex centrifugal wind wheel, and comprises an air duct machine box body, a motor and a plurality of duplex centrifugal wind wheels, wherein the motor and the duplex centrifugal wind wheels are arranged in the air duct machine box body;
the two ends of the motor are respectively provided with a driving shaft, the driving shafts are arranged on two duplex centrifugal wind wheels, the driving shafts and the two duplex centrifugal wind wheels on the same side of the driving shafts are arranged oppositely, and the driving shafts enter from one side of a second wind wheel of one duplex centrifugal wind wheel and penetrate through a through hole of an installation shaft core of the duplex centrifugal wind wheel and then are inserted into the through hole of the installation shaft core of the other duplex centrifugal wind wheel.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects:
through set up the installation axle center at wheel hub's center, because wheel hub sets up in the inboard of first frame, and wheel hub orientation is kept away from one side protrusion setting of second wind wheel, when the drive shaft of installation motor, the position that need not insert the drive shaft of motor to the medium plate just can realize the installation, only need insert the drive shaft of motor in the through-hole from one side of wheel hub protrusion direction, install the drive shaft of motor can in the through-hole, make the drive shaft length of motor even shorter also can realize the installation with a plurality of centrifugal wind wheel, the through-hole setting in the medium plate position of drive shaft installation of power supply motor in the current centrifugal wind wheel has been solved, the length of required drive shaft is longer, can't adopt a motor drive a plurality of wind wheel pivoted technical problem.
Drawings
FIG. 1 is a schematic perspective view of a twin centrifugal wind wheel according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of a twin centrifugal wind wheel according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a twin centrifugal wind wheel according to an embodiment of the present utility model;
FIG. 4 is a schematic right-side view of a double centrifugal wind wheel according to an embodiment of the utility model;
FIG. 5 is a schematic view of an air duct machine according to an embodiment of the present utility model;
wherein: the first wind wheel 1, the first frame 11, the hub 12, the mounting shaft core 121, the through hole 1211, the mounting hole 1212, the middle partition 122, the first side 1221, the second side 1222, the wind guiding hole 123, the first blade 13, the second wind wheel 2, the second frame 21, the middle plate 22, the second blade 23, the motor 3, the driving shaft 31, the wind pipe box 4, the maximum radius R of the wind guiding hole, the distance D, the width H, the included angle alpha and the wind path height L.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.
In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more.
As shown in fig. 1 to 4, a twin centrifugal wind wheel comprises a first wind wheel 1 and a second wind wheel 2;
the first wind wheel 1 comprises a first frame 11, a hub 12 and a plurality of first blades 13, wherein the first frame 11 is in a circular ring shape, the hub 12 is arranged on the inner side of the first frame 11, and the plurality of first blades 13 are arranged on the first frame 11 at intervals;
the second wind wheel 2 comprises a second frame 21, a middle plate 22 and a plurality of second blades 23, the second frame 21 and the middle plate 22 are circular, the plurality of second blades 23 are arranged between the middle plate 22 and the second frame 21 at intervals, one end of each first blade 13 is connected with the first frame 11, and the other end of each first blade 13 is connected with the middle plate 22;
the hub 12 is arranged to protrude toward one side far away from the second wind wheel 2, a mounting shaft core 121 is arranged at the center of the hub 12, a through hole 1211 is formed in the mounting shaft core 121 in a penetrating manner along the extending direction of the mounting shaft core 121, and the through hole 1211 is used for mounting the driving shaft 31 of the motor 3.
The through hole 1211 installed on the driving shaft 31 of the power supply 3 in the existing duplex centrifugal wind wheel is arranged at the position of the middle plate 22, so that the length of the driving shaft 31 of the required motor 3 is longer, a plurality of wind wheels cannot be driven to rotate by adopting one motor 3, and a driving piece is required to be added to improve the air inlet quantity. According to the utility model, the installation shaft core 121 is arranged at the center of the hub 12, and since the hub 12 is arranged at the inner side of the first frame 11 and the hub 12 is arranged to protrude towards the side far away from the second wind wheel 2, when the driving shaft 31 of the motor 3 is installed, the driving shaft 31 of the motor 3 is not required to be inserted into the middle plate 22, the driving shaft 31 of the motor 3 is only required to be inserted into the through hole 1211 from the protruding side of the hub 12, and the driving shaft 31 of the motor 3 is installed in the through hole 1211, so that the installation of a plurality of centrifugal wind wheels can be realized even if the length of the driving shaft 31 of the motor 3 is short, the technical problems that the through hole 1211 for installing the driving shaft 31 of the motor 3 in the traditional centrifugal wind wheels is arranged at the middle plate 22, the required driving shaft 31 is long, and the plurality of wind wheels cannot be driven to rotate by one motor 3 are solved.
To further describe, the side wall of the mounting shaft 121 is provided with a mounting hole 1212, and the mounting hole 1212 is communicated with the through hole 1211.
By providing the mounting hole 1212, after the driving shaft 31 of the motor 3 is inserted into the through hole 1211, the driving shaft 31 of the motor 3 may be fixedly mounted in the mounting shaft core 121 by tightening the mounting hole 1212 using a fastener such as a screw, thereby achieving the fixed mounting of the driving shaft 31 of the motor 3 and the twin centrifugal wind wheel. Specifically, the installation shaft core 121 is a metal piece, and is injection molded with a mold during injection molding of the first wind wheel 1, so that the installation shaft core is simple to manufacture, and the structural strength and structural stability of the metal piece are high.
Preferably, one end of the first blade 13 is connected to the first frame 11, and the other end of the first blade 13 is welded to the middle plate 22.
Specifically, the first blade 13 and the middle plate 22 are welded by ultrasonic or laser, so that the connection structure between the first wind wheel 1 and the second wind wheel 2 is more stable, the structural stability of the double centrifugal wind wheel is improved, and the stability of the double centrifugal wind wheel during operation is ensured.
Specifically, the hub 12 includes a plurality of annular middle partitions 122, and air guide holes 123 are formed between two adjacent middle partitions 122.
By arranging the middle partition plate 122, when the double centrifugal wind wheel rotates, external air flow enters the double centrifugal wind wheel through the air guide holes 123 and drives the first blades 13 and the second blades 23 to synchronously rotate, so that air flow is effectively accelerated.
Preferably, the vertical projection shape of the air guiding hole 123 is a fan shape, and the distance D between the maximum radius R of the air guiding hole 123 and the first blade 13 is greater than or equal to 2mm.
By defining the distance between the maximum radius R of the wind guiding hole 123 and the first blade 13, the structural strength of the first wind wheel 1 is ensured, and if the distance between the maximum radius R of the wind guiding hole 123 and the first blade 13 is too small, the strength of the first wind wheel 1 may be insufficient.
Preferably, the width H of the septum 122 is greater than or equal to 18mm.
By setting the width of the middle partition 122 within this range, the strength of the hub 12 is ensured, and if the width of the middle partition 122 is too small, that is, the hub 12 is too small, the twin centrifugal wind wheel may be damaged during high-speed operation.
Preferably, the two sides of the middle partition 122 along the circumferential direction of the first frame 11 are respectively provided with a first side 1221 and a second side 1222, and an included angle between the first side 1221 and the second side 1222 is an included angle α, where 10 ° < a < 30 °.
By setting the range of the included angle between the first side 1221 and the second side 1222 of the middle partition 122 within this range, it is ensured that the air guiding hole 123 has a sufficient air inlet area, and if the range of the included angle α is too large, the air inlet area of the air guiding hole 123 is affected, thereby resulting in performance degradation of the twin centrifugal wind wheel.
Preferably, the distance between the end surface of the first frame 11 far away from the second wind wheel 2 and the end surface of the second frame 21 far away from the first wind wheel 1 is wind path height L, and the wind path height L is less than or equal to 150mm.
By setting the wind path height L within this range, the installation of the drive shaft 31 of the motor 3 is prevented from being affected by the overlong twin centrifugal wind wheel while the air intake effect of the twin centrifugal wind wheel is ensured.
As shown in fig. 5, the air duct machine is provided with the duplex centrifugal wind wheel, and comprises an air duct machine box 4, a motor 3 and a plurality of duplex centrifugal wind wheels, wherein the motor 3 and the duplex centrifugal wind wheels are arranged in the air duct machine box 4;
the two ends of the motor 3 are respectively provided with a driving shaft 31, the driving shafts 31 are arranged on two twin centrifugal wind wheels, the two twin centrifugal wind wheels on the same side which is fixedly arranged with the driving shafts 31 are oppositely arranged, and the driving shafts 31 enter from one side of the second wind wheel 2 of one twin centrifugal wind wheel and pass through a through hole 1211 of the installation shaft core 121 of the twin centrifugal wind wheel, and then are inserted into the through hole 1211 of the installation shaft core 121 of the other twin centrifugal wind wheel.
Through the use of the double centrifugal wind wheel, when the double centrifugal wind wheel is installed, only the driving shaft 31 of the motor 3 is required to be inserted into the double centrifugal wind wheel from one side of the second wind wheel 2 of one of the double centrifugal wind wheels, and after the driving shaft 31 of the motor 3 passes through the through hole 1211 of the installation shaft core 121 of the double centrifugal wind wheel, the driving shaft 31 of the motor 3 is inserted into the through hole 1211 of the installation shaft core 12 of the other double centrifugal wind wheel from one side of the protruding direction of the hub 12 of the other double centrifugal wind wheel, and the driving shaft 31 of the motor 3 is installed by using a fastener such as a screw to be screwed in the installation hole 1212, so that the motor 3 can drive a plurality of double centrifugal wind wheels to rotate without adding a driving piece, the structure of the air pipe machine is more concise, the air inlet quantity of a product is ensured, the cost is effectively reduced, and the technical problems that the air inlet quantity, the structure is complicated and the cost is high due to the fact that the driving piece is required to be added in the existing air pipe machine are solved.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. The double centrifugal wind wheel is characterized by comprising a first wind wheel and a second wind wheel;
the first wind wheel comprises a first frame, a hub and a plurality of first blades, the first frame is in a circular ring shape, the hub is arranged on the inner side of the first frame, and the plurality of first blades are arranged on the first frame at intervals;
the second wind wheel comprises a second frame, a middle plate and a plurality of second blades, the second frame and the middle plate are all annular, the second blades are arranged between the middle plate and the second frame at intervals, one end of each first blade is connected with the first frame, and the other end of each first blade is connected with the middle plate;
the wheel hub is towards keeping away from one side protrusion setting of second wind wheel, wheel hub's center is equipped with the installation axle core, the through-hole has been seted up in the extending direction of self run through to the installation axle core, the through-hole is used for installing the drive shaft of motor.
2. The twin centrifugal wind wheel according to claim 1, wherein a mounting hole is formed through a side wall of the mounting shaft core, and the mounting hole is communicated with the through hole.
3. The twin centrifugal wind wheel according to claim 1, wherein one end of the first blade is connected to the first frame, and the other end of the first blade is welded to the middle plate.
4. The twin centrifugal wind wheel according to claim 1, wherein the hub comprises a plurality of annularly-distributed intermediate baffles, and air guide holes are formed between two adjacent intermediate baffles.
5. The duplex centrifugal wind wheel according to claim 4, wherein the vertical projection shape of the wind guide hole is a sector, and the distance D between the maximum radius R of the wind guide hole and the first blade is more than or equal to 2mm.
6. The duplex centrifugal wind wheel according to claim 4, wherein the width H of the middle partition plate is more than or equal to 18mm.
7. The twin centrifugal wind wheel according to claim 4, wherein the middle partition plate is provided with a first side and a second side along two sides of the circumferential direction of the first frame, and an included angle between the first side and the second side is an included angle alpha, wherein a is more than 10 degrees and less than 30 degrees.
8. The duplex centrifugal wind wheel according to claim 1, wherein a distance between an end face of the first frame far away from the second wind wheel and an end face of the second frame far away from the first wind wheel is wind path height L, and the wind path height L is less than or equal to 150mm.
9. An air duct machine, characterized in that the double centrifugal wind wheel according to any one of claims 1-8 is arranged, and comprises an air duct machine box, a motor arranged in the air duct machine box and a plurality of double centrifugal wind wheels;
the two ends of the motor are respectively provided with a driving shaft, the driving shafts are arranged on two duplex centrifugal wind wheels, the driving shafts and the two duplex centrifugal wind wheels on the same side of the driving shafts are arranged oppositely, and the driving shafts enter from one side of a second wind wheel of one duplex centrifugal wind wheel and penetrate through a through hole of an installation shaft core of the duplex centrifugal wind wheel and then are inserted into the through hole of the installation shaft core of the other duplex centrifugal wind wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223374968.XU CN218913259U (en) | 2022-12-15 | 2022-12-15 | Duplex centrifugal wind wheel and air duct machine using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223374968.XU CN218913259U (en) | 2022-12-15 | 2022-12-15 | Duplex centrifugal wind wheel and air duct machine using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913259U true CN218913259U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223374968.XU Active CN218913259U (en) | 2022-12-15 | 2022-12-15 | Duplex centrifugal wind wheel and air duct machine using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913259U (en) |
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2022
- 2022-12-15 CN CN202223374968.XU patent/CN218913259U/en active Active
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