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Low-vibration ventilation fan

A ventilator, low-vibration technology, applied to machines/engines, liquid fuel engines, mechanical equipment, etc., can solve the problems that the vibration transmission path cannot be completely blocked, the installation and use of the ventilator is unfavorable, and the size of the ventilator increases. Achieve the effect of simple structure, vibration reduction and noise reduction, and low noise and vibration

Active Publication Date: 2012-02-08
武汉长海电力推进和化学电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing noise reduction measures for ventilators used in limited environments, especially for small ships, mainly use auxiliary noise-absorbing materials, reduce fan speed, etc., and these methods will increase the size of the ventilator, which is not conducive to ventilation Machine installation and use
Conventional fans usually adopt the method of installing a shock absorber at the foot of the fan to reduce noise and vibration. This solution can no longer completely block all the transmission paths of vibration, and there may even be other transmission paths that lead to reduced vibration. Oscillator "short circuit"

Method used

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  • Low-vibration ventilation fan
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 , 2 , Shown in 3, 4, a kind of low-vibration ventilator, it has a volute 1, impeller 2, driving motor 4; A volute flange 3 is fixed on the volute 1; Described volute flange 3 has a The outer ring 3.1 that can be fixed with the volute 1 and an inner ring 3.3 that can be fixedly connected with the motor flange at the shaft end of the drive motor 4, the inner ring 3.3 of the volute flange 3 is fixedly connected with the outer ring 3.1, and the connecting piece is The damping ring 3.2 between the inner ring 3.3 and the outer ring 3.1 of the volute flange 3. The inner ring 3.3 and the outer ring 3.1 of the volute flange 3 are metal rings made of metal materials. The vibration damping ring 3.2 is a vibration damping ring made of damping material. The damping ring 3.2 made of the damping material is selected from rubber damping rings, and its damping material is an organic material or an inorganic material; the organic material is selected from rubber, and ...

Embodiment 2

[0026] Different from Embodiment 1, the inner ring 3.3 and the outer ring 3.1 of the volute flange 3 are rigid rings made of organic materials. The damping ring 3.2 made of damping material is made of a metal spring plate.

Embodiment 3

[0028] The difference from Example 1 is that the fixed connection between the inner ring 3.3 and the outer ring 3.1 of the volute flange 3 is through the vibration damping ring 3.2, which can also be selected as riveting or pin connection, or can also be selected at the same time. Bonding and riveting, or bonding and pinning.

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Abstract

The invention relates to a low-vibration ventilation fan comprising a volute, an impeller and a drive motor. A volute flange is fixed on the volute; the volute flange is provided with an outer ring fixed with the volute and an inner ring fixedly connected with a motor flange of a shaft end of a drive motor; the inner ring and the outer ring of the volute flange are fixedly connected; and a connecting piece is a vibration-attenuating ring arranged between the inner ring and the outer ring of the volute flange. The low-vibration ventilation fan has the advantages of obvious effect, low noise vibration, small volume, simple structure and convenient maintenance, and solves the problems of vibration attenuation and noise reduction from the prorogation path of the vibration.

Description

technical field [0001] The invention relates to a low-vibration ventilator, which belongs to the technical field of ventilators, and is particularly suitable for low-vibration ventilators requiring low noise, low vibration, and easy installation and maintenance. Background technique [0002] In the limited environment, especially in the environment of small ships, the fan equipment used for ventilation and cooling is an important source of noise and vibration. Under the current trend of building reliable and quiet water navigation equipment, the ventilator must have the characteristics of low noise, low vibration, small size and easy maintenance. [0003] Existing noise reduction measures for ventilators used in limited environments, especially for small ships, mainly use auxiliary noise-absorbing materials, reduce fan speed, etc., and these methods will increase the size of the ventilator, which is not conducive to ventilation Machine installation and use. Conventional fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66F04D25/08
Inventor 吴永铨谌瑾谢峰陈云华叶舟涛
Owner 武汉长海电力推进和化学电源有限公司
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