CN213838945U - Mute centrifugal fan with integrated flexible connection - Google Patents
Mute centrifugal fan with integrated flexible connection Download PDFInfo
- Publication number
- CN213838945U CN213838945U CN202021390700.3U CN202021390700U CN213838945U CN 213838945 U CN213838945 U CN 213838945U CN 202021390700 U CN202021390700 U CN 202021390700U CN 213838945 U CN213838945 U CN 213838945U
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- China
- Prior art keywords
- centrifugal fan
- shaft
- sleeve
- transition
- fixing sleeve
- 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 - Fee Related
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- 230000007704 transition Effects 0.000 claims abstract description 43
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model discloses an integral flexible connection mute centrifugal fan, which comprises an integral centrifugal fan and a motor shaft, wherein the motor shaft is arranged in the center of the integral centrifugal fan in a penetrating way, a shaft fixing sleeve is arranged outside the joint of the motor shaft and the integral centrifugal fan, a transition shaft sleeve is arranged inwards in the center of the integral centrifugal fan, and the inner side of the transition shaft sleeve is connected with the shaft fixing sleeve through a flexible transition rubber sleeve; the strength of the centrifugal fan and the concentricity of the centrifugal fan and the blades are ensured through the support of the transition shaft sleeve, and the flexible transition rubber sleeve is ensured not to axially displace by processing a groove in the shaft sleeve; after the shaft fixing sleeve is fixed with the shaft, the shaft fixing sleeve is rigidly connected with the motor through the shaft, the motor vibrates due to high-speed operation, and at the moment, after the vibration is absorbed through the flexible transition rubber sleeve, the centrifugal fan cannot resonate to generate noise.
Description
Technical Field
The utility model relates to a centrifugal fan technical field specifically indicates an integral type flexonics's silence centrifugal fan.
Background
The central air-conditioning terminal-fan coil mainly comprises: the fan coil pipe is operated, the centrifugal fan is driven by the motor to rotate, blades in the centrifugal fan force gas to rotate, the gas does work to increase energy, the gas is thrown out to the periphery of the centrifugal fan under the action of centrifugal force, speed energy is converted into pressure energy through the volute casing, after the gas in the centrifugal fan is discharged, the pressure in the centrifugal fan is lower than the pressure in the air inlet pipe, new gas is sucked into the centrifugal fan under the action of pressure difference, and the gas is continuously discharged from the volute casing to the air outlet, so that heat exchange in a certain space is realized. The motor, centrifugal fan and volute are the main accessories causing noise of the fan coil. The fan coil motor sold in the market at present is a common alternating current asynchronous motor, and the centrifugal fan and the volute are made of galvanized parts. The centrifugal fan that galvanized part processing preparation formed comprises middle fixed plate and blade, and the blade shaping back, the blade is inlayed on the bayonet socket of middle fixed plate to constitute centrifugal fan.
Because the incision of galvanized component has the potential risk of corrosion, and the bayonet fixed of blade and fixed plate can become flexible because of the corrosion to produce the noise.
The centrifugal fan and the motor shaft are fixed by locking with nuts, so that when the motor and the centrifugal fan run at high speed, looseness is easy to generate, and simultaneously, because the centrifugal fan and the shaft are rigidly connected, resonance is easy to generate noise. Since the centrifugal fan and the motor shaft are assembled later, noise may be generated due to unbalance of the centrifugal fans at both ends of the motor due to assembly errors.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides an integral type flexonics's silence centrifugal fan, includes integral type centrifugal fan, motor shaft, the motor shaft runs through to set up in integral type centrifugal fan center, its outside is equipped with the fixed cover of axle in the junction of motor shaft and integral type centrifugal fan, integral type centrifugal fan center inwards is equipped with the transition axle sleeve, the transition axle sleeve inboard is connected with the fixed cover of axle through flexible transition gum cover.
As an improvement, one end of the shaft fixing sleeve is provided with a locking nut fixed with a motor shaft.
As an improvement, grooves are formed in one side faces, close to the flexible transition rubber sleeve, of the shaft fixing sleeve and the transition shaft sleeve, and convex edges corresponding to the grooves are formed in two sides of the flexible transition rubber sleeve.
As an improvement, the integrated centrifugal fan comprises a central plate and fan blades arranged outside the central plate, wherein the central plate and the fan blades are integrally formed by one-time injection molding.
As an improvement, the transition shaft sleeve and the flexible transition rubber sleeve are arranged in the middle of the central plate, one end of the shaft fixing sleeve extends out of the flexible transition rubber sleeve, and the locking nut is arranged at the extending end of the shaft fixing sleeve.
As an improvement, the integrated centrifugal fan is made of ABS materials.
After the structure more than adopting, the utility model has the advantages of as follows: 1. the centrifugal fan of the utility model is integrally formed at one time by injection molding, thereby ensuring the strength and the stable structure of the centrifugal fan;
2. the strength of the centrifugal fan and the concentricity of the centrifugal fan and the blades are ensured through the support of the transition shaft sleeve, and the flexible transition rubber sleeve is ensured not to axially displace by processing a groove in the shaft sleeve;
3. after the shaft fixing sleeve is fixed with the shaft, the shaft fixing sleeve is in rigid connection with the motor through the shaft, the motor generates vibration due to high-speed operation, and at the moment, after the vibration is absorbed through the flexible transition rubber sleeve, the centrifugal fan cannot resonate to generate noise;
4. the shaft fixing sleeve is a part for connecting the centrifugal fan and the motor shaft, and a processing groove is arranged on the outer diameter of the part, so that the flexible transition rubber sleeve tightly covers the shaft sleeve without displacement, and the integrity of the centrifugal fan is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an integral flexibly connected silent centrifugal fan of the present invention.
Fig. 2 is a schematic structural view of the integrated centrifugal fan and the motor shaft connected in the mute centrifugal fan with integrated flexible connection according to the present invention.
Fig. 3 is a schematic side view of the mute centrifugal fan with integrated flexible connection according to the present invention.
Fig. 4 is a schematic structural diagram of the flexible transition rubber sleeve in the mute centrifugal fan with integrated flexible connection according to the present invention.
As shown in the figure: 1. integral type centrifugal fan, 1.1, well core plate, 1.2, flabellum, 2, motor shaft, 3, the fixed cover of axle, 4, transition axle sleeve, 5, cross flexible transition gum cover, 6, lock nut.
Detailed Description
The mute centrifugal fan comprises an integrated centrifugal fan body 1 and a motor shaft 2, wherein the motor shaft 2 penetrates through the center 1 of the integrated centrifugal fan body, a shaft fixing sleeve 3 is arranged outside the joint of the motor shaft 2 and the integrated centrifugal fan body 1, a transition shaft sleeve 4 is inwards arranged in the center of the integrated centrifugal fan body 1, and the inner side of the transition shaft sleeve 4 is connected with the shaft fixing sleeve 3 through a flexible transition rubber sleeve 5.
As a preferred embodiment of the present embodiment, one end of the shaft fixing sleeve 3 is provided with a lock nut 6 fixed with the motor shaft 2.
As a preferred embodiment of this embodiment, grooves are formed in one side surfaces of the shaft fixing sleeve 3 and the transition shaft sleeve 4 close to the flexible transition rubber sleeve 5, and convex ridges corresponding to the grooves are formed on two sides of the flexible transition rubber sleeve 5.
As a preferred embodiment of this embodiment, the integrated centrifugal fan 1 includes a central plate 1.1 and blades 1.2 disposed outside the central plate 1.1, and the central plate 1.1 and the blades 1.2 are integrally formed by one-time injection molding.
As a preferred embodiment of this embodiment, the transition shaft sleeve 4 and the flexible transition rubber sleeve 5 are disposed in the middle of the central plate 1.1, one end of the shaft fixing sleeve 3 extends out of the flexible transition rubber sleeve 5, and the lock nut 6 is disposed at the extending end of the shaft fixing sleeve 3.
As a preferred embodiment of the present embodiment, the integrated centrifugal fan 1 is made of ABS material.
When the utility model is implemented, the centrifugal fan is made of ABS material, so that the centrifugal fan is not rusted in different environments; the centrifugal fan is integrally formed by the die, and the centrifugal fan is structurally connected without a fastener, so that the noise caused by the structural connection problem is avoided; the centrifugal fan is in flexible transition connection with the motor shaft, so that noise caused by insufficient assembling or machining precision of the centrifugal fan is avoided; through the flexible transition axle sleeve between centrifugal fan and the axle for the fan is using longer condition, even have some little deformation and cause off-centre, through the flexonics of transition axle sleeve, can not cause the vibrations of motor and axle yet.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (1)
1. The mute centrifugal fan is characterized by comprising an integrated centrifugal fan and a motor shaft, wherein the motor shaft penetrates through the center of the integrated centrifugal fan, a shaft fixing sleeve is arranged outside the joint of the motor shaft and the integrated centrifugal fan, a transition shaft sleeve is inwards arranged at the center of the integrated centrifugal fan, and the inner side of the transition shaft sleeve is connected with the shaft fixing sleeve through a flexible transition rubber sleeve;
one end of the shaft fixing sleeve is provided with a locking nut fixed with a motor shaft; grooves are formed in one side faces, close to the flexible transition rubber sleeve, of the shaft fixing sleeve and the transition shaft sleeve, and convex edges corresponding to the grooves are formed in two sides of the flexible transition rubber sleeve; the integrated centrifugal fan comprises a central plate and fan blades arranged outside the central plate, wherein the central plate and the fan blades are integrally formed by one-time injection molding; the transition shaft sleeve and the flexible transition rubber sleeve are arranged in the middle of the central plate, one end of the shaft fixing sleeve extends out of the flexible transition rubber sleeve, and the locking nut is arranged at the extending end of the shaft fixing sleeve; the integrated centrifugal fan is made of ABS materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021390700.3U CN213838945U (en) | 2020-07-15 | 2020-07-15 | Mute centrifugal fan with integrated flexible connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021390700.3U CN213838945U (en) | 2020-07-15 | 2020-07-15 | Mute centrifugal fan with integrated flexible connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213838945U true CN213838945U (en) | 2021-07-30 |
Family
ID=76987246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021390700.3U Expired - Fee Related CN213838945U (en) | 2020-07-15 | 2020-07-15 | Mute centrifugal fan with integrated flexible connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213838945U (en) |
-
2020
- 2020-07-15 CN CN202021390700.3U patent/CN213838945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210730 |