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Vibration reduction and noise reduction device of small centrifugal air blower

A centrifugal fan and noise reduction device technology, which is applied to the components of pumping devices for elastic fluids, mechanical equipment, non-variable pumps, etc., can solve the problems of imperfect shock absorption and noise reduction equipment, noise pollution, and long life of fans. Short and other problems, to achieve the effect of providing shock absorption, prolonging the service life, and removing noise pollution

Inactive Publication Date: 2019-03-08
孙建江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The shock absorption and noise reduction equipment of the current centrifugal fan is not perfect. Many fans work directly in the open air without these devices, causing a lot of noise pollution. At the same time, the shock absorption ability of the fan itself is very weak, which causes great damage to the fan itself. Shorten the life of the fan

Method used

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  • Vibration reduction and noise reduction device of small centrifugal air blower
  • Vibration reduction and noise reduction device of small centrifugal air blower
  • Vibration reduction and noise reduction device of small centrifugal air blower

Examples

Experimental program
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Effect test

Embodiment 1

[0023] see Figure 1-3 , a small centrifugal fan shock absorber and noise reduction device, including a main body 1 and a centrifugal fan 7 located inside the main body 1, the material of the main body 1 is soft fiberboard, the soft fiberboard is light and porous, and has good noise insulation and heat insulation function, can effectively reduce noise, the main body 1 is covered with a layer of sound insulation cotton layer 2, the thickness of the sound insulation cotton layer 2 is greater than the thickness of the main body 1, and the sound insulation cotton layer 2 is two layers, which has high efficiency Sound-absorbing ability and heat-insulating ability, the sound wave passes through the reflection of the multi-fiber structure inside the sound-insulating cotton layer 2, overlaps and collides with each other, and converts the energy of the sound wave into heat energy, thereby weakening the intensity of the sound and achieving the sound-absorbing effect. The sound-insulatin...

Embodiment 2

[0025] This embodiment is optimized on the basis of Embodiment 1. The main content of the optimization is: the bottom of the main body 1 is also provided with a moving device 16, and the moving device 16 includes a buffer block 161, supporting legs 162, universal wheels 163 and Brake device 164, the buffer block 161 is fixed on the bottom of the main body 1, the universal wheel 163 is connected with the support leg 162 fixed on the buffer block 161, the brake device 164 is fixed below the support leg 162, and acts as a limit The moving device 16 facilitates the movement of the whole device.

[0026] The working principle of the present invention is: the blower fan 7 will generate a large amount of noise and continuous vibration during the working process. The noise is significantly reduced, and the noise is well eliminated. During the vibration process, the fan 7 drives the bracket 8 to move downward, the slider 10 drives the slider 11 to move to the side away from the shock a...

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Abstract

The invention discloses a vibration reduction and noise reduction device of a small centrifugal air blower, belongs to the technical field of air blowers and solves the problems of high noise and lowcapability of reducing vibration. The vibration reduction and noise reduction device of the small centrifugal air blower comprises a main body and a centrifugal air blower located in the main body, wherein a sound insulation cotton layer is coated in the main body; a vacuum plate is coated on the sound insulation cotton layer; a fixed plate is also arranged in the main body; two same vibration reduction devices are arranged on the fixed plate; each vibration reduction device comprises a fixed rod, a first cushion block, a spring and a second cushion block; the first cushion blocks are used forsupporting and fixing two first support frames of the air blower; the first support frames are connected with the fixed rods in the vibration reduction devices in a sliding manner; other ends of sliding rods are rotatably connected with sliding blocks through fourth rotating shafts; the sliding blocks are connected with the fixed plate in a sliding manner through sliding rails arranged on the fixed plate. Through the vibration reduction and noise reduction device of the small centrifugal air blower, the noise pollution generated during operation is effectively reduced, and the vibration reduction capability of the air blower is improved.

Description

technical field [0001] The invention relates to a shock-absorbing and sound-absorbing device, in particular to a shock-absorbing and sound-absorbing device for a small centrifugal fan. Background technique [0002] A small centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induction of boilers and industrial furnaces; cooling and cooling of air conditioning equipment and household appliances Ventilation; drying and selection of grain; wind tunnel wind source and inflation and propulsion of hovercraft, etc. [0003] The shock absorption and noise reduction equipment of the current centrifugal fan is not perfect. Many fans work directly in the open air without these devices, causing a lot of noise pollution. At the same ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66
CPCF04D29/664F04D29/668
Inventor 孙建江
Owner 孙建江
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