CN211550018U - Low-noise centrifugal ventilator - Google Patents
Low-noise centrifugal ventilator Download PDFInfo
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- CN211550018U CN211550018U CN201920628350.0U CN201920628350U CN211550018U CN 211550018 U CN211550018 U CN 211550018U CN 201920628350 U CN201920628350 U CN 201920628350U CN 211550018 U CN211550018 U CN 211550018U
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Abstract
The utility model relates to a fan ventilation field, concretely relates to centrifugal fan of low noise. The centrifugal ventilator comprises a base, a driving mechanism, a shell and an impeller; the shell is arranged on one side above the base; the driving mechanism is arranged on the other side of the base; the impeller is arranged in the shell and connected with the driving mechanism; the middle part of one side of the shell, which is far away from the driving mechanism, is provided with an air inlet; an air outlet is arranged above the shell; the driving mechanism comprises a driving device and a transmission assembly; the driving device is arranged above the base; the transmission assembly is arranged above the driving device and is respectively connected with the driving device and the impeller. The driving device drives the impeller inside the casing to rotate through the transmission assembly, so that the direct contact between the driving device and the impeller is avoided, the noise is reduced during working, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to a fan ventilation field, concretely relates to centrifugal fan of low noise.
Background
The centrifugal ventilator is a driven fluid machine which increases the gas pressure and discharges the gas by means of the input mechanical energy, the application of the fan is very wide, and the application fields are different according to different air quantities.
The current centrifugal fan is because the structure sets up unreasonablely, and during operation stability is relatively poor, and the noise is great simultaneously, and is not convenient for wash and maintain the impeller.
Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model is realized in such a way, the centrifugal ventilator with low noise comprises a base, a driving mechanism, a casing and an impeller; the shell is arranged on one side above the base; the driving mechanism is arranged on the other side of the base; the impeller is arranged in the shell and connected with the driving mechanism;
the middle part of one side of the shell, which is far away from the driving mechanism, is provided with an air inlet; an air outlet is arranged above the shell;
the driving mechanism comprises a driving device and a transmission assembly; the driving device is arranged above the base; the transmission assembly is arranged above the driving device and is respectively connected with the driving device and the impeller.
The driving device drives the impeller inside the casing to rotate through the transmission assembly, so that the direct contact between the driving device and the impeller is avoided, the noise is reduced during working, and the maintenance cost is reduced.
Preferably, an air inlet widening frame is arranged at the air inlet of the shell; the air inlet widening frame is obliquely arranged towards the outside of the air inlet; the air inlet widening frame is detachably provided with a dustproof net on one side away from the air inlet. The setting of air intake widening frame has improved work efficiency, and simultaneously, the setting of dust screen has prevented that big dust from entering into inside the casing to work efficiency has been reduced.
Preferably, the transmission assembly comprises a transmission belt, a driving transmission wheel, a driven transmission wheel and a rotating shaft; the rotating shaft is arranged above the base, and one end of the rotating shaft is connected with the impeller; the driven transmission wheel is sleeved on one end of the rotating shaft away from the impeller; the driving transmission wheel is sleeved on a power output shaft of the driving device; one end of the driving belt is sleeved on the outer wall of the driving wheel, and the other end of the driving belt is sleeved on the outer wall of the driven driving wheel. The impeller is connected with the impeller directly through the driving belt, the driving wheel, the driven driving wheel and the rotating shaft in the driving assembly, noise is reduced, and meanwhile maintenance cost is reduced. More specifically, in order to increase the working efficiency, the driving device is a motor. Of course, the transmission assembly may alternatively include a speed reducer connected to the motor for controlling the rotational speed of the motor, thereby improving the controllability of the centrifugal fan. More specifically, a fixed table is arranged above the driving device, and the rotating shaft is arranged above the fixed table through a bearing seat so as to be connected with the impeller.
Preferably, the base is a trapezoid pedestal as a whole. The setting of trapezoidal pedestal has improved holistic stability, has avoided because rock when this centrifugal fan works to life has been reduced.
Preferably, in order to further improve the overall stability, the bottom of the base is provided with a shock-proof device. Of course, the shock absorbing device may alternatively be a silicone shock pad.
Preferably, in order to facilitate daily cleaning and maintenance of the impeller in the interior of the casing, an access door is arranged on the outer wall of the casing.
Preferably, in order to facilitate observation of the rotation condition of the impeller during operation, a detection window is arranged in the middle of the access door.
Preferably, in order to enhance the working efficiency of the impeller, the impeller comprises a wheel disc and impeller blades; a connecting port for connecting the rotating shaft is formed in the middle of the wheel disc; the impeller blades are arranged in a plurality and are arranged on the wheel disc in a surrounding mode by taking the connecting port as the center.
In the low-noise centrifugal ventilator, the driving device drives the impeller in the casing to rotate through the transmission assembly, so that the direct contact between the driving device and the impeller is avoided, the noise is reduced during the work, and the maintenance cost is reduced; meanwhile, due to the arrangement of the access door and the detection window, the impeller in the shell can be cleaned and maintained conveniently in daily life.
Drawings
Fig. 1 is an overall schematic view of a low-noise centrifugal fan according to the present invention;
fig. 2 is a schematic view of an impeller of a low-noise centrifugal fan according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
The preferred embodiment of the present invention is realized as such, and provides a low-noise centrifugal fan, which comprises a base 1, a driving mechanism 2, a casing 3 and an impeller 4; the shell 3 is arranged on one side above the base 1; the driving mechanism 2 is arranged on the other side of the base 1; the impeller 4 is arranged in the casing 3, and the impeller 4 is connected with the driving mechanism 2;
wherein, the middle part of one side of the machine shell 3 far away from the driving mechanism 2 is provided with an air inlet 31; an air outlet 32 is arranged above the shell 3;
the driving mechanism 2 comprises a driving device 21 and a transmission assembly 22; the driving device 21 is arranged above the base 1; the transmission assembly 22 is disposed above the driving device 21, and the transmission assembly 22 is connected to the driving device 21 and the impeller 4 respectively.
The driving device 21 drives the impeller 4 inside the casing 3 to rotate through the transmission assembly 22, so that the direct contact between the driving device 21 and the impeller 4 is avoided, the noise is reduced during the work, and the maintenance cost is reduced.
Preferably, an air inlet widening frame 33 is arranged at the air inlet 31 of the housing 3; the air inlet widening frame 33 is arranged obliquely towards the outside of the air inlet 31; a dust screen 331 is detachably disposed on a side of the intake widening frame 33 away from the intake 31. The air inlet widening frame 33 improves the working efficiency, and meanwhile, the dust screen 331 prevents large dust from entering the inside of the machine shell 3, so that the working efficiency is reduced.
Preferably, the transmission assembly 22 comprises a transmission belt 221, a driving transmission wheel, a driven transmission wheel and a rotating shaft 222; the rotating shaft 222 is arranged above the base 1, and one end of the rotating shaft is connected with the impeller 4; the driven transmission wheel is sleeved on one end of the rotating shaft 222 far away from the impeller 4; the driving transmission wheel is sleeved on a power output shaft of the driving device 21; one end of the driving belt 221 is sleeved on the outer wall of the driving wheel, and the other end of the driving belt is sleeved on the outer wall of the driven driving wheel. The impeller 4 is prevented from being directly connected with the impeller 4 by the driving belt 221, the driving transmission wheel, the driven transmission wheel and the rotating shaft 222 in the transmission assembly 22, noise is reduced, and maintenance cost is reduced. More specifically, the driving device 21 is a motor to increase the working efficiency. Of course, the transmission assembly 22 may alternatively include a speed reducer connected to the motor for controlling the rotational speed of the motor, thereby improving the controllability of the centrifugal fan. More specifically, a fixed stage 223 is provided above the driving unit 21, and the rotation shaft 222 is provided above the fixed stage 223 through a bearing housing 224 so that the rotation shaft 222 is coupled to the impeller 4.
Preferably, the base 1 is a trapezoidal base as a whole. The setting of trapezoidal pedestal has improved holistic stability, has avoided because rock when this centrifugal fan works to life has been reduced.
Preferably, in order to further improve the overall stability, the bottom of the base 1 is provided with a shock-proof device 11. Of course, the shock absorbing device 11 may alternatively be a silicone shock absorbing pad.
Preferably, in order to facilitate daily cleaning and maintenance of the impeller 4 in the interior of the casing 3, an access door 34 is provided on the outer wall of the casing 3.
Preferably, in order to observe the rotation of the impeller 4 during operation, a detection window 34 is formed in the middle of the access door 34.
Preferably, in order to enhance the working efficiency of the impeller 4, the impeller 4 comprises a wheel disc 41 and impeller blades 42; a connecting port 43 used for being connected with the rotating shaft 222 is formed in the middle of the wheel disc 41; the impeller blades 42 are provided in plural, and the plural impeller blades 42 are provided around the disk 41 with the connection port 43 as a center.
In the low-noise centrifugal ventilator of the utility model, the driving device 21 drives the impeller 4 inside the casing 3 to rotate through the transmission component 22, thereby avoiding the direct contact between the driving device 21 and the impeller 4, reducing the noise during the work and reducing the maintenance cost; meanwhile, the arrangement of the access door 34 and the detection window 34 facilitates daily cleaning and maintenance of the impeller 4 in the casing 3.
The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Centrifugal fan of low noise, its characterized in that: the centrifugal ventilator comprises a base, a driving mechanism, a shell and an impeller; the shell is arranged on one side above the base; the driving mechanism is arranged on the other side of the base; the impeller is arranged in the shell and connected with the driving mechanism;
the middle part of one side of the shell, which is far away from the driving mechanism, is provided with an air inlet; an air outlet is arranged above the shell;
the driving mechanism comprises a driving device and a transmission assembly; the driving device is arranged above the base; the transmission assembly is arranged above the driving device and is respectively connected with the driving device and the impeller; an air inlet widening frame is arranged at the air inlet of the shell; the air inlet widening frame is obliquely arranged towards the outside of the air inlet; a dustproof net is detachably arranged on one side, far away from the air inlet, of the air inlet widening frame; the transmission assembly comprises a transmission belt, a driving transmission wheel, a driven transmission wheel and a rotating shaft; the rotating shaft is arranged above the base, and one end of the rotating shaft is connected with the impeller; the driven transmission wheel is sleeved on one end of the rotating shaft away from the impeller; the driving transmission wheel is sleeved on a power output shaft of the driving device; one end of the driving belt is sleeved on the outer wall of the driving wheel, and the other end of the driving belt is sleeved on the outer wall of the driven driving wheel.
2. A low noise centrifugal ventilator as defined in claim 1, wherein: the driving device is a motor.
3. A low noise centrifugal ventilator as defined in claim 1, wherein: the base is integrally a trapezoidal pedestal.
4. A low noise centrifugal ventilator as defined in claim 1, wherein: the bottom of the base is provided with a shock-proof device.
5. The low noise centrifugal ventilator of claim 4 wherein: the shockproof device is a silica gel shockproof pad.
6. A low noise centrifugal ventilator as defined in claim 1, wherein: an access door is arranged on the outer wall of the casing.
7. A low noise centrifugal ventilator as defined in claim 6, wherein: and the middle part of the access door is provided with a detection window.
8. A low noise centrifugal ventilator as defined in claim 7, wherein: the impeller comprises a wheel disc and impeller blades; a connecting port for connecting the rotating shaft is formed in the middle of the wheel disc; the impeller blades are arranged in a plurality and are arranged on the wheel disc in a surrounding mode by taking the connecting port as the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628350.0U CN211550018U (en) | 2019-05-05 | 2019-05-05 | Low-noise centrifugal ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628350.0U CN211550018U (en) | 2019-05-05 | 2019-05-05 | Low-noise centrifugal ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550018U true CN211550018U (en) | 2020-09-22 |
Family
ID=72487494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920628350.0U Active CN211550018U (en) | 2019-05-05 | 2019-05-05 | Low-noise centrifugal ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550018U (en) |
-
2019
- 2019-05-05 CN CN201920628350.0U patent/CN211550018U/en active Active
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