CN216343059U

CN216343059U - Axial fan vibration/noise reduction device

Info

Publication number: CN216343059U
Application number: CN202122022400.0U
Authority: CN
Inventors: 冯长博; 冯士军
Original assignee: Liaocheng Runhong Frp Equipment Engineering Co ltd
Current assignee: Liaocheng Runhong Frp Equipment Engineering Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-04-19
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to the technical field of axial flow fans and discloses a damping and noise reducing device of an axial flow fan, which comprises damping feet and a protective cover, wherein a damping mechanism is arranged at the bottom in each damping foot, a fan cavity is formed in the protective cover, a noise reducing mechanism is arranged in the middle of the fan cavity, a power mechanism is arranged in the noise reducing mechanism, a dismounting mechanism is arranged on the back surface of the protective cover, each damping mechanism comprises a first spring, a connecting column, a moving plate and a damping pulley, the first spring is fixedly connected to the bottom in each damping foot, the connecting column is fixedly connected to the top end of the first spring, the moving plate is fixedly connected to the middle of the front surface of the connecting column, and the damping pulley is rotatably connected to the middle of the front surface of the moving plate. This axial fan vibration/noise reduction device, at the motor during operation, the motor produces vibrations, makes the spliced pole at the inside removal of shock attenuation foot, can make damping pulley increase frictional force when sliding on the shock attenuation foot inner wall to play absorbing effect.

Description

Axial fan vibration/noise reduction device

Technical Field

The utility model relates to the technical field of axial flow fans, in particular to a damping and noise reducing device of an axial flow fan.

Background

The axial flow fan has a very wide application, namely, the axial flow fan and the fan blade have the same direction of air flow, such as an electric fan, and an air conditioner outer machine fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a casing, and is simple in structure but high in data requirement.

The existing axial flow fan is not provided with a damping and noise reducing device when in use, and vibration causes the internal elements of the axial flow fan to be loose, so that improvement is needed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vibration and noise reduction device of an axial flow fan, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an axial fan vibration/noise reduction device, includes shock attenuation foot and protection casing, the bottom is provided with damper in the shock attenuation foot, set up the fan chamber in the protection casing, fan intracavity middle part is provided with the mechanism of making an uproar, it is provided with power unit in the mechanism of making an uproar to make an uproar, the protection casing back is provided with disassembly body.

The damping mechanism comprises a first spring, a connecting column, a movable plate and a damping pulley, the first spring is fixedly connected to the bottom of the damping foot, the connecting column is fixedly connected to the top end of the first spring, the movable plate is fixedly connected to the front middle of the connecting column, and the damping pulley is rotatably connected to the front middle of the movable plate.

Preferably, the noise reduction mechanism comprises a fixing column, a fixing disc, a clamping block and a noise reduction box, the fixing column is fixedly connected to the top of the fan cavity and close to the right side, the fixing disc is fixedly connected to the fixing column and far away from one end of the protective cover, the clamping block is fixedly connected to the back of the fixing disc and close to the top, and the noise reduction box is fixedly connected to the back of the clamping block.

Preferably, the power mechanism comprises a motor and fan blades, the motor is fixedly connected to the middle of the back of the fixed disc, the motor is provided with an output shaft, and the fan blades are fixedly connected to the output shaft of the motor.

Preferably, the detaching mechanism comprises a protective door, a hook, an installation block, a second spring, a moving block and a retaining ring, the protective door is hinged to the back of the protective cover, the hook is fixedly connected to the back of the protective door and close to the top, the installation block is fixedly connected to the back of the protective cover and close to the top, the second spring is fixedly connected to the inner top of the installation block, the moving block is fixedly connected to the bottom end of the second spring, and the retaining ring is hinged to the bottom end of the moving block.

Preferably, the clamping groove corresponding to the clamping block is formed in the right side of the fixed disc, and the noise reduction box is fixed with the fixed disc through the clamping groove for clamping the clamping block, so that the noise reduction box can be rapidly installed and detached.

Preferably, the radiating grooves are formed in the top and the bottom of the noise reduction box, the noise reduction box is made of hard rubber, the temperature of the motor is prevented from being too high through the radiating grooves, and the hard rubber can make a sound to the motor to reduce noise.

Preferably, the shape of the inner wall of the damping foot is uneven, so that the friction force of the damping pulley moving on the inner wall of the damping foot can be increased, and the top of the connecting column is fixedly connected with the bottom of the protective cover.

Compared with the prior art, the utility model provides a damping and noise reducing device of an axial flow fan, which has the following beneficial effects:

1. this axial fan vibration/noise reduction device, when axial fan during operation, motor work produces the noise, through setting up at the outside noise reduction box of motor, and noise reduction box material is hard rubber to can fall the work of making an uproar to the motor, prevent that the motor from producing the noise.

2. This axial fan vibration/noise reduction device, at the motor during operation, the motor produces vibrations, makes the spliced pole at the inside removal of shock attenuation foot, can make damping pulley increase frictional force when sliding on the shock attenuation foot inner wall to play absorbing effect.

3. This axial fan vibration/noise reduction device through setting up the disassembly body, through the pulling buckle, can take off the buckle from the pothook to can open the guard gate, make this axial fan have and open fast, the function of the maintenance of being convenient for.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a cross-sectional front view of the fixing post of the present invention;

FIG. 3 is a schematic cross-sectional right view of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is an enlarged schematic view of B in fig. 3.

In the figure: 1. a shock absorption foot; 2. a protective cover; 3. a fan cavity; 4. a noise reduction mechanism; 401. fixing a column; 402. fixing the disc; 403. a clamping block; 404. a noise reduction box; 5. a power mechanism; 501. a motor; 502. a fan blade; 6. a disassembly mechanism; 601. a protective door; 602. a hook; 603. mounting blocks; 604. a second spring; 605. a moving block; 606. a retaining ring; 7. a damping mechanism; 701. a first spring; 702. connecting columns; 703. moving the plate; 704. damping pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, the present invention provides a technical solution: an axial flow fan damping and noise reducing device comprises a damping pin 1 and a protective cover 2, a damping mechanism 7 is arranged at the bottom in the damping pin 1, a fan cavity 3 is formed in the protective cover 2, a noise reducing mechanism 4 is arranged at the middle part in the fan cavity 3, the noise reducing mechanism 4 comprises a fixed column 401, a fixed disc 402, a clamping block 403 and a noise reducing box 404, the fixed column 401 is fixedly connected to the top of the fan cavity 3 close to the right side, the fixed disc 402 is fixedly connected to one end, away from the protective cover 2, of the fixed column 401, a clamping groove corresponding to the clamping block 403 is formed in the right side of the fixed disc 402, the noise reducing box 404 is fixed with the fixed disc 402 through the clamping groove of the clamping block 403, heat dissipation grooves are formed in the top and the bottom of the noise reducing box 404, the noise reducing box 404 is made of hard rubber, the heat dissipation grooves are arranged to prevent the motor 501 from being over-high in temperature, the hard rubber can reduce noise of the motor 501, and the noise of the noise reducing box 404 can be rapidly installed and disassembled, the clamping block 403 is fixedly connected to the back of the fixed disc 402 close to the top, the noise reduction box 404 is fixedly connected to the back of the clamping block 403, the noise reduction mechanism 4 is internally provided with a power mechanism 5, the power mechanism 5 comprises a motor 501 and fan blades 502, the motor 501 is fixedly connected to the middle of the back of the fixed disc 402, the motor 501 is provided with an output shaft, the fan blades 502 are fixedly connected to the output shaft of the motor 501, when the axial flow fan works, the motor 501 works to generate noise, the noise reduction box 404 arranged outside the motor 501 is made of hard rubber, so that the noise reduction work of the motor 501 can be realized, the noise generation of the motor 501 is prevented, the back of the protective cover 2 is provided with a dismounting mechanism 6, the dismounting mechanism 6 comprises a protective door 601, a clamping hook 602, an installation block 603, a second spring 604, a moving block 605 and a clamping ring 606, the protective door 601 is hinged to the back of the protective cover 2, the clamping hook 602 is fixedly connected to the back of the protective door 601 close to the top, the mounting block 603 is fixedly connected to the back of the protective cover 2 close to the top, the second spring 604 is fixedly connected to the top in the mounting block 603, the moving block 605 is fixedly connected to the bottom end of the second spring 604, the retaining ring 606 is hinged to the bottom end of the moving block 605, and the retaining ring 606 can be taken down from the clamping hook 602 by pulling the retaining ring 606 through the dismounting mechanism 6, so that the protective door 601 can be opened, and the axial flow fan is enabled to have the function of being opened quickly and convenient to maintain.

Damper 7 is including first spring 701, spliced pole 702, movable plate 703 and shock attenuation pulley 704, first spring 701 fixed connection is the bottom in shock attenuation foot 1, spliced pole 702 fixed connection is on first spring 701 top, 1 inner wall shape of shock attenuation foot is unevenness form, thereby can increase the frictional force of shock attenuation pulley 704 when removing on the 1 inner wall of shock attenuation foot, 2 bottoms of spliced pole 702 top fixed connection protection casing, movable plate 703 fixed connection is in the positive middle part of spliced pole 702, shock attenuation pulley 704 rotates and connects in the positive middle part of movable plate 703, at the during operation of motor 501, motor 501 produces vibrations, make spliced pole 702 remove in 1 inside of shock attenuation foot, increase frictional force when can making shock attenuation pulley 704 slide on 1 inner wall of shock attenuation foot, thereby play absorbing effect.

In the actual operation process, when the device is used, when the axial flow fan works, the motor 501 works to generate noise, the noise reduction box 404 arranged outside the motor 501 is arranged, the noise reduction box 404 is made of hard rubber, so that the noise reduction work can be carried out on the motor 501, the noise generation of the motor 501 is prevented, the heat can be dissipated to the motor 501 through the heat dissipation groove arranged at the top of the noise reduction box 404, the noise reduction box 404 can be conveniently taken down through the fixture block 403, so that the motor 501 is convenient to maintain, when the motor 501 works, the motor 501 generates vibration which is transmitted downwards through the connecting column 702, so that the first spring 701 at the bottom of the connecting column 702 is stressed and compressed, so that the connecting column 702 moves inside the damping foot 1, because the inner wall of the damping foot 1 is uneven, the friction force can be increased when the damping pulley 704 slides on the inner wall of the damping foot 1, so as to achieve the damping effect, through setting up disassembly body 6, through pulling the buckle 606, make the second spring 604 at movable block 605 top stretch out and draw back in the installation piece 603 to can take off buckle 606 from pothook 602, thereby can open the guard gate 601 at the protection casing 2 back, make this axial fan have the function of opening fast, the maintenance of being convenient for.

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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical 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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an axial fan vibration/noise reduction device, includes shock attenuation foot (1) and protection casing (2), its characterized in that: a damping mechanism (7) is arranged at the bottom in the damping foot (1), a fan cavity (3) is formed in the protective cover (2), a noise reduction mechanism (4) is arranged in the middle of the fan cavity (3), a power mechanism (5) is arranged in the noise reduction mechanism (4), and a dismounting mechanism (6) is arranged on the back of the protective cover (2);

damper (7) are including first spring (701), spliced pole (702), movable plate (703) and shock attenuation pulley (704), bottom in first spring (701) fixed connection is in shock attenuation foot (1), spliced pole (702) fixed connection is on first spring (701) top, movable plate (703) fixed connection is in spliced pole (702) front middle part, shock attenuation pulley (704) rotate to be connected in movable plate (703) front middle part.

2. The axial flow fan vibration and noise reduction device according to claim 1, wherein: denoising mechanism (4) including fixed column (401), fixed disk (402), fixture block (403) and denoising case (404), fixed column (401) fixed connection is close to the right side in fan chamber (3) top, protection casing (2) one end is kept away from in fixed column (401) fixed connection fixed disk (402), fixture block (403) fixed connection is close to the top in fixed disk (402) back, denoising case (404) fixed connection is in fixture block (403) back.

3. The axial flow fan vibration and noise reduction device according to claim 2, wherein: the power mechanism (5) comprises a motor (501) and fan blades (502), the motor (501) is fixedly connected to the middle of the back of the fixed disc (402), the motor (501) is provided with an output shaft, and the fan blades (502) are fixedly connected to the output shaft of the motor (501).

4. The axial flow fan vibration and noise reduction device according to claim 3, wherein: the disassembly mechanism (6) comprises a protective door (601), a clamping hook (602), an installation block (603), a second spring (604), a moving block (605) and a retaining ring (606), the protective door (601) is hinged to the back of the protective cover (2), the clamping hook (602) is fixedly connected to the back of the protective door (601) and close to the top, the installation block (603) is fixedly connected to the back of the protective cover (2) and close to the top, the second spring (604) is fixedly connected to the inner top of the installation block (603), the moving block (605) is fixedly connected to the bottom end of the second spring (604), and the retaining ring (606) is hinged to the bottom end of the moving block (605).

5. The axial flow fan vibration/noise reduction device according to claim 4, wherein: the right side of the fixed disc (402) is provided with a clamping groove corresponding to the clamping block (403), and the noise reduction box (404) is fixed with the fixed disc (402) through the clamping groove of the clamping block (403).

6. The axial flow fan vibration/noise reduction device according to claim 5, wherein: the heat dissipation grooves are formed in the top and the bottom of the noise reduction box (404), and the noise reduction box (404) is made of hard rubber.

7. The axial flow fan vibration/noise reduction device according to claim 6, wherein: the shock absorption foot (1) is characterized in that the inner wall of the shock absorption foot is uneven, and the top of the connecting column (702) is fixedly connected with the bottom of the protective cover (2).

8. The axial flow fan vibration and noise reduction device according to claim 7, wherein: the motor (501) is arranged in the noise reduction box (404) in the front, the bottom of the motor (501) is fixedly connected with a support frame, and the front of the support frame is fixedly connected with the back of the fixed disc (402).