Vibration damping type centrifugal fan
By using a tensile spring elastic buffer device connected by a fixed ring and a damping base in the centrifugal fan, the problem of damage to the fan in a high-vibration environment is solved, and more stable operation and longer service life are achieved, reducing maintenance costs and improving Product quality.
Patent Information
- Application Number
- CN202323627557.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-28
AI Technical Summary
Existing centrifugal fans are easily damaged in high vibration environments, and the rubber pads have poor vibration damping and frequent maintenance, which increases costs and maintenance needs.
Adopt the design including a shell, fan body and vibration relief device. The vibration relief device connects multiple tension springs through a fixed ring and vibration relief base to form a uniform ring-distributed elastic buffer connection. The fan body is fixed on the vibration relief base to reduce vibration impact. .
Effectively slow down equipment vibration, extend service life, reduce maintenance costs, improve equipment stability and reliability, and improve product quality.
Smart Images
Figure CN222315484U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of centrifugal fan vibration reduction, in particular to a vibration reduction type centrifugal fan. Background Art
[0002] In industrial applications such as servo punching machines and refractory brick machines, the equipment vibrates significantly. If the impact force on the fan during vibration is not effectively reduced, the centrifugal fan in the equipment will be easily damaged. Therefore, in these high-vibration environments, it is crucial to take vibration-mitigating measures in a timely manner to ensure the normal operation of the equipment and extend the life of the centrifugal fan. Through the careful design and installation of vibration-mitigating devices, the impact force on the fan during vibration can be effectively reduced, the fan components of the centrifugal fan can be protected, and the stability and reliability of the equipment can be improved.
[0003] At present, rubber pads are widely used for vibration reduction in the market. However, although this common vibration reduction method is relatively low in cost, the effect is poor. The rubber pad is large and thick, and the rebound amplitude is small. Moreover, after being used for a long time, the rubber pad will harden to varying degrees, and it is difficult to play an effective vibration reduction effect for a long time. This not only reduces the performance stability of the equipment, but also leads to frequent maintenance needs, increasing time and maintenance costs. Summary of the invention
[0004] The technical problem to be solved by the utility model is to provide a slow-vibration centrifugal fan, which can effectively alleviate the impact force exerted on the fan body of the centrifugal fan when it vibrates at high speed, thereby ensuring the stable operation and effective use of the equipment, making the operation of the centrifugal fan more stable, reducing maintenance costs and improving product quality.
[0005] A slow-vibration centrifugal fan comprises a shell, a fan body and a slow-vibration device located in the shell, the slow-vibration device comprises a fixed ring fixed in the shell and a slow-vibration base located in the center of the fixed ring, the slow-vibration base is connected to the fixed ring through a plurality of elastic buffer connection mechanisms surrounding the circumference and arranged radially, and the fan body is fixedly arranged on the slow-vibration base.
[0006] The elastic buffer connection mechanism is a tension spring, and the fixed ring and the vibration damping base are elastically connected by a plurality of tension springs evenly distributed in an annular shape. The tension springs are evenly distributed and symmetrically arranged along the radial direction of the fixed ring, which is conducive to reducing the vibration amplitude of the equipment, improving the overall performance, and effectively reducing the impact of vibration on the equipment structure, thereby extending the service life of the equipment and improving the working conditions of workers.
[0007] The fixing ring is provided with a plurality of first through holes, the vibration damping base is provided with second through holes corresponding to the number of the first through holes, the first through holes and the second through holes are evenly distributed in an annular shape, and the first through holes and the second through holes are connected by the tension spring. The through hole structure can realize precise alignment between components and ensure assembly accuracy.
[0008] The housing is integrally formed. The housing can effectively block external physical damage, thereby protecting key components inside the device from damage, improving the stability and safety of the device, and the integrally formed design further simplifies the production process, reduces manufacturing costs, and shortens the production cycle.
[0009] Compared with the prior art, the advantages of the utility model are: by fixing the fan body on the vibration-damping base, a plurality of elastic buffer connection mechanisms under tension are arranged between the vibration-damping base and the fixing ring, so as to offset the deadweight of the fan body of the centrifugal fan, decouple the fan body from the vibration source, and enable the fan body to operate normally for a long time under vibration conditions, thereby facilitating the effective installation and fixation of the centrifugal fan, reducing the vibration amplitude of the equipment, reducing the impact force on the fan body during vibration, and facilitating the stable operation and effective use of the equipment, making the centrifugal fan operate more stably, thereby increasing the service life of the fan, reducing maintenance costs, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the overall structure of a slow-vibration centrifugal fan and a motor of the utility model;
[0011] Figure 2 This is a top view of a slow-vibration centrifugal fan and a motor of the utility model;
[0012] Figure 3 This is a BB cross-sectional view of a slow-vibration centrifugal fan and a motor of the utility model;
[0013] Figure 4 This is an exploded structural diagram of a slow-vibration centrifugal fan of the utility model;
[0014] Figure 5 The utility model is a structural schematic diagram of a slow vibration device of a slow vibration centrifugal fan. DETAILED DESCRIPTION
[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings. Example
[0016] A slow-vibration centrifugal fan comprises a housing 3 and a fan body 1 and a slow-vibration device 2 located in the housing 3. The slow-vibration device 2 comprises a fixed ring 21 fixedly arranged in the housing 3 and a slow-vibration base 22 located in the center of the fixed ring 21. The slow-vibration base 22 is connected to the fixed ring 21 through a plurality of elastic buffer connection mechanisms surrounding the circumference and arranged radially. The fan body 1 is fixedly arranged on the slow-vibration base 22.
[0017] The elastic buffer connection mechanism is a tension spring 23, and the fixing ring 21 and the vibration-absorbing base 22 are elastically connected by eight tension springs 23 evenly distributed in an annular shape. Example
[0018] The rest is the same as that of the first embodiment, except that: eight first through holes 211 are formed on the fixing ring 21, and the second through holes 221 corresponding to the number of the first through holes 211 are formed on the vibration damping base 22, the first through holes 211 and the second through holes 221 are evenly distributed in an annular shape, and the first through holes 211 and the second through holes 222 are elastically connected by a tension spring 23.
[0019] The fan body 1 and the vibration damping device 2 are both fixedly arranged in a shell 3, and the shell 3 is integrally formed.
[0020] A slow vibration centrifugal fan, when working, a slow vibration device 2 is fixedly installed on a motor 4, the motor 4 includes a rotating shaft 41 and a front end cover 42 fixedly arranged at the front end of the rotating shaft 41, an encoder 43 is arranged on the top of the rotating shaft 41, and a fixing ring 21 of the slow vibration device 2 is fixedly arranged on the front end cover 42 of the motor 4. This simple and effective structure can reduce the impact force on the fan body 1 during vibration, improve the stability and reliability of the motor operation, and the slow vibration device 2 effectively reduces the adverse effects of vibration on the surrounding environment and equipment by dispersing the vibration energy generated by the motor 4 and the fan 12 of the centrifugal fan body 1, and the fan 12 can dissipate heat from the motor components; the installation of the slow vibration device 2 helps to extend the service life of the motor 4 and the fan body 1, reduce the wear and damage caused by vibration, improve the efficiency of equipment operation, significantly improve the performance, stability and reliability of the equipment, and provide a safer and more efficient working environment for industrial production and equipment operation.
Claims
1. A slow-vibration centrifugal fan, comprising a housing, a fan body and a slow-vibration device located in the housing, characterized in that The vibration damping device includes a fixing ring fixedly arranged in the shell and a vibration damping base located at the center of the fixing ring. The vibration damping base is connected to the fixing ring through a plurality of elastic buffer connection mechanisms surrounding the circumference and arranged radially. The fan body is fixedly arranged on the vibration damping base.
2. A slow-vibration centrifugal fan according to claim 1, characterized in that The elastic buffer connection mechanism is a tension spring, and the fixed ring and the vibration-absorbing base are elastically connected through a plurality of tension springs uniformly distributed in an annular shape.
3. A slow-vibration centrifugal fan according to claim 2, characterized in that The fixing ring is provided with a plurality of first through holes, the vibration damping base is provided with second through holes corresponding to the number of the first through holes, the first through holes and the second through holes are evenly distributed in an annular shape, and the first through holes and the second through holes are elastically connected via the tension spring.
4. The slow-vibration centrifugal fan according to claim 1, characterized in that The shell is integrally formed.