CN215256900U - Axial fan vibration and noise reduction device - Google Patents
Axial fan vibration and noise reduction device Download PDFInfo
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- CN215256900U CN215256900U CN202120971075.XU CN202120971075U CN215256900U CN 215256900 U CN215256900 U CN 215256900U CN 202120971075 U CN202120971075 U CN 202120971075U CN 215256900 U CN215256900 U CN 215256900U
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Abstract
The utility model discloses an axial fan vibration damping and noise reducing device, which comprises an outer hub, a plurality of fan blades, a fan main shaft and a driving motor, wherein the outer hub is a cavity shell with a cylindrical structure, the driving motor is arranged in the outer hub, the fan main shaft is connected with the driving end of the driving motor, the fan blades are distributed at the end part of the fan main shaft in an annular array, and a vibration damping and noise reducing mechanism is arranged in the outer hub; the utility model relates to an axial fan technical field, this device of making an uproar falls in axial fan damping, moreover, the steam generator is simple in structure, high durability and convenient installation, overall structure is based on current axial fan design, utilize the damping to fall the cooperation of making an uproar annular drag reduction groove and drag reduction sliding ring in the mechanism of making an uproar, the operating stability of flabellum when improve equipment fan operation, reduce the tremble that takes place when its axial swing and each flabellum receive the impact, and then carry out the damping and fall the noise, other components in the cooperation structure have effectively improved axial fan's whole damping and have fallen the noise nature.
Description
Technical Field
The utility model relates to an axial fan technical field specifically is an axial fan damping falls device of making an uproar.
Background
Axial fan is in the processing course such as chemical industry and machinery, the equipment that often uses, it can play the effect of cooling down or taking a breath, and axial fan is installed at the axle center position of pipeline or equipment more as the name implies, and in axial fan's use, because mechanical vibration's reason, thereby arouse the synchronous tremble of pipeline easily and arouse great noise and pipeline and fixed equipment's the position of being connected takes place wearing and tearing, cause the condition such as fixed equipment's fracture, damage equipment reduces its life, in view of this, to the above-mentioned problem deep research, tunnel and produce the present case.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an axial fan damping falls device of making an uproar has solved current background technical problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the outer hub is a cavity shell with a cylindrical structure, the driving motor is installed in the outer hub, the fan main shaft is connected with the driving end of the driving motor, the fan blades are arranged at the end part of the fan main shaft in an annular array, and a vibration damping and noise reducing mechanism is arranged in the outer hub;
the vibration and noise reduction mechanism comprises: the damping device comprises an annular damping groove, a damping slip ring, a plurality of fixing rods, a fixing groove and a through groove;
annular drag reduction groove has been seted up to outer wheel hub internal face, and is a plurality of fan flabellum outer end cover is equipped with the drag reduction sliding ring and inlays the dress in annular drag reduction inslot, outer wheel hub is close to fan flabellum one side and is the gas outlet for air inlet one side relative with the air inlet, outer wheel hub gas outlet one side is equipped with a plurality of dead levers, and is a plurality of dead lever inner is connected with the fixed slot, the fixed slot is close to a plurality of fan flabellum one side diameters for the toper structure and is less than and is connected one side diameter with the dead lever, driving motor inlays the dress in the fixed slot, set up the logical groove that matches with the fan main shaft on the fixed slot, the fan main shaft runs through logical groove and is connected with driving motor.
Preferably, the outer hub overcoat is equipped with annular damping pad, a plurality of mounting holes have been seted up to outer hub outer wall, and is a plurality of threaded rod of threaded connection in the mounting hole.
Preferably, the annular drag reduction groove is a groove with an annular structure, the shapes of the drag reduction slip ring and the annular drag reduction groove are matched, and lubricating oil is filled between the drag reduction slip ring and the annular drag reduction groove.
Preferably, a drag reduction bearing is embedded in the through groove, and the fan main shaft is embedded in the drag reduction bearing.
Preferably, the end parts of the fan blades of the fan are connected with the resistance-reducing slip ring in a welding mode.
Preferably, a filter screen is embedded at the end part of the air inlet of the outer hub.
Advantageous effects
The utility model provides an axial fan damping and noise reduction device. The method has the following beneficial effects: this device of making an uproar falls in axial fan damping, simple structure, simple to operate, overall structure is based on current axial fan design, utilizes the damping to fall the cooperation of making an uproar annular drag reduction groove and drag reduction sliding ring on the mechanism, and the operating stability of flabellum when the improve equipment fan moves reduces the tremor that takes place when its axial swing and each flabellum receive the impact, and then carries out the drag reduction and falls the noise, and other components in the cooperation structure have effectively improved axial fan's whole damping and have fallen the noise reduction nature.
Drawings
Fig. 1 is the utility model discloses an axial fan damping falls device of making an uproar's main structure schematic diagram of looking.
Fig. 2 is the utility model discloses an axial fan damping falls device of making an uproar side view structure schematic diagram.
Fig. 3 is the utility model discloses an axial fan damping falls device of making an uproar's local cut-out structure sketch map.
In the figure: 1. an outer hub; 2. fan blades; 3. a fan main shaft; 4. a drive motor; 5. an annular drag reduction groove; 6. a drag reduction slip ring; 7. fixing the rod; 8. fixing grooves; 9. a through groove; 10. an annular vibration damping pad; 11. a drag reduction bearing; 12. a filter screen; 13. a threaded rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.
Example (b): as can be seen from the attached figures 1-3 of the specification, the axial flow fan vibration damping and noise reduction device comprises an outer hub 1, a plurality of fan blades 2, a fan main shaft 3 and a driving motor 4, wherein the outer hub 1 is a hollow shell with a cylindrical structure, the driving motor 4 is arranged in the outer hub 1, the fan main shaft 3 is connected with the driving end of the driving motor 4, the plurality of fan blades 2 are arranged at the end part of the fan main shaft 3 in an annular array, a vibration damping and noise reduction mechanism is arranged in the outer hub 1, in the specific implementation process, the outer hub 1 is used as an outer casing of the fan and used for fixedly mounting the fan and protecting internal devices, the fan main shaft 3 is used for fixing a plurality of fan blades 2, the fan main shaft 3 is connected with the driving motor 4 and can drive the fan main shaft 3 to rotate, the fan blade 2 is further driven to rotate, and the vibration reduction and noise reduction mechanism outside the fan blade 2 is utilized to reduce vibration of the fan blade 2;
as can be seen from fig. 1 to 3 of the specification, the vibration and noise reduction mechanism comprises: the device comprises an annular anti-drag groove 5, an anti-drag slip ring 6, a plurality of fixing rods 7, a fixing groove 8 and a through groove 9, wherein the connection relationship and the position relationship are as follows;
an annular anti-drag groove 5 is formed in the inner wall surface of an outer hub 1, an anti-drag slip ring 6 is sleeved at the outer ends of a plurality of fan blades 2 and is embedded in the annular anti-drag groove 5, one side, close to the fan blades 2, of the outer hub 1 is an air inlet, an air outlet is arranged at the side, opposite to the air inlet, of the air inlet, a plurality of fixing rods 7 are arranged at one side of the air outlet of the outer hub 1, the inner ends of the fixing rods 7 are connected with fixing grooves 8, the fixing grooves 8 are conical structures, the diameter of the side, close to the fan blades 2, of each fixing groove is smaller than the diameter of the side, connected with the corresponding fixing rod 7, a driving motor 4 is embedded in the corresponding fixing groove 8, a through groove 9 matched with a fan spindle 3 is formed in the corresponding fixing groove 8, and the fan spindle 3 penetrates through the through groove 9 and is connected with the driving motor 4;
in the concrete implementation in-process, annular drag reduction groove 5 and drag reduction sliding ring 6 cooperation through on outer wheel hub 1, utilize drag reduction sliding ring 6's surface and the inside wall face of annular drag reduction groove 5 to form the inside oiling of closed cavity, utilize annular drag reduction groove 5 to carry on spacingly to drag reduction sliding ring 6, and then make fan flabellum 2 monolithic phase together, the amplitude of oscillation that produces when reducing rotatory, avoid fan flabellum 2 tremble the noise of sending, utilize the fixed slot 8 of dead lever 7 that the annular was arranged simultaneously, utilize fixed slot 8 parcel motor, it is better to avoid driving motor 4 fixed effect on the one hand, avoid driving motor 4's self vibrations to influence fan flabellum 2, on the other hand plays the water conservancy diversion effect, reduce the pressure of fan flabellum 2 position, thereby reduce the impact to the flabellum, further avoid producing the noise.
As preferred scheme, still further, outer hub 1 overcoat is equipped with annular damping pad 10, and outer hub 1 outer wall has seted up a plurality of mounting holes, and threaded connection has a plurality of threaded rods 13 in a plurality of mounting holes, and a plurality of threaded rods 13 can be dismantled for the tie point of fixed outer hub 1 when installing axial fan.
As a preferred scheme, furthermore, the annular drag reduction groove 5 is a groove with an annular structure, the drag reduction slip ring 6 is matched with the annular drag reduction groove 5 in shape, and lubricating oil is filled between the drag reduction slip ring and the annular drag reduction groove 5, so that the friction force between the annular drag reduction groove 5 and the drag reduction slip ring 6 is reduced, and the running stability is improved.
As a preferred scheme, furthermore, a drag reduction bearing 11 is embedded in the through groove 9, and the fan main shaft 3 is embedded in the drag reduction bearing 11, so that friction force is reduced, and noise generated by polarization during operation of the fan main shaft 3 is avoided.
Preferably, the ends of the fan blades 2 are connected with the resistance-reducing slip ring 6 by welding.
Preferably, the end of the air inlet of the outer hub 1 is embedded with a filter screen 12 to prevent foreign matters from entering the outer hub 1 and striking the fan blades to generate noise.
In conclusion, the axial flow fan vibration and noise reduction device is simple in structure and convenient to install, the overall structure is based on the existing axial flow fan design, the annular resistance reduction grooves 5 in the vibration and noise reduction mechanism are matched with the resistance reduction sliding rings 6, the operation stability of the fan blades is improved when the fan of the device is operated, axial swing of the fan blades is reduced, vibration generated when each fan blade is impacted is reduced, resistance reduction and noise reduction are further carried out, and the overall vibration and noise reduction performance of the axial flow fan is effectively improved by matching other components in the structure.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The vibration reduction and noise reduction device of the axial flow fan comprises an outer hub (1), a plurality of fan blades (2), a fan main shaft (3) and a driving motor (4), wherein the outer hub (1) is a cavity shell with a cylindrical structure, the driving motor (4) is installed in the outer hub (1), the fan main shaft (3) is connected with the driving end of the driving motor (4), and the fan blades (2) are arranged at the end part of the fan main shaft (3) in an annular array manner;
the vibration and noise reduction mechanism comprises: the damping device comprises an annular damping groove (5), a damping slip ring (6), a plurality of fixing rods (7), fixing grooves (8) and a through groove (9);
an annular anti-drag groove (5) is formed in the inner wall surface of the outer hub (1), an anti-drag slip ring (6) is sleeved at the outer ends of the fan blades (2) and is embedded in the annular anti-drag groove (5), one side of the outer hub (1) close to the fan blades (2) is an air inlet, the other side of the outer hub opposite to the air inlet is an air outlet, a plurality of fixing rods (7) are arranged on one side of the air outlet of the outer hub (1), the inner ends of the fixing rods (7) are connected with fixing grooves (8), the diameter of one side of the fixing groove (8) which is of a conical structure and is close to the fan blades (2) is smaller than that of the side connected with the fixing rod (7), the driving motor (4) is embedded in a fixed groove (8), a through groove (9) matched with the fan spindle (3) is formed in the fixed groove (8), the fan main shaft (3) penetrates through the through groove (9) and is connected with the driving motor (4).
2. The axial flow fan vibration and noise reduction device according to claim 1, wherein an annular vibration reduction pad (10) is sleeved outside the outer hub (1), a plurality of mounting holes are formed in the outer wall of the outer hub (1), and a plurality of threaded rods (13) are connected in the plurality of mounting holes in a threaded manner.
3. The axial flow fan vibration and noise reduction device according to claim 1, wherein the annular drag reduction groove (5) is a groove with an annular structure, the drag reduction slip ring (6) and the annular drag reduction groove (5) are matched in shape, and lubricating oil is filled between the drag reduction slip ring and the annular drag reduction groove.
4. The vibration-damping and noise-reducing device of the axial flow fan as claimed in claim 1, wherein a drag-reducing bearing (11) is embedded in the through groove (9), and the fan main shaft (3) is embedded in the drag-reducing bearing (11).
5. The axial flow fan vibration damping and noise reducing device according to claim 1, wherein the ends of the fan blades (2) are connected with the resistance-reducing slip ring (6) by welding.
6. The vibration and noise reduction device of the axial flow fan is characterized in that a filter screen (12) is embedded at the end part of the air inlet of the outer hub (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120971075.XU CN215256900U (en) | 2021-05-08 | 2021-05-08 | Axial fan vibration and noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120971075.XU CN215256900U (en) | 2021-05-08 | 2021-05-08 | Axial fan vibration and noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215256900U true CN215256900U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120971075.XU Active CN215256900U (en) | 2021-05-08 | 2021-05-08 | Axial fan vibration and noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215256900U (en) |
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2021
- 2021-05-08 CN CN202120971075.XU patent/CN215256900U/en active Active
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