A single-axis anti-eccentricity system for small fan bearings

Abstract

The invention discloses a single-axis anti-eccentric system for a small fan shaft sleeve. The single-axis anti-eccentric system comprises an inverted U-shaped fan blade shell, an outer shell of the fan blade shell is provided with fan blades, the inside of the fan blade shell is sequentially provided with a first convex plastic member, a circular plastic member and a second convex plastic member from top to bottom, the first convex plastic member and the second convex plastic member are arranged in the opposite directions, the convex ends are clamped into circular holes of the circular plasticmember, and a screw sequentially passes through the fan blade shell, the first convex plastic member and the circular plastic member from the top of the fan blade shell downwards and then penetratesinto the second convex plastic member to fix the four parts. The center of the first convex plastic member is provided with a threaded counterbore from the convex end surface inwards, and the center of the second convex plastic member is provided with a threaded through hole. The single-axis anti-eccentric system is simple in structure, balanced force at the two ends is adopted, the resistance axis radius is expanded, deformation of the shaft sleeve is controlled to be within a very small range, eccentricity is prevented, and large noise generated after a fan works for a long time can be avoided.

Description

technical field [0001] The invention relates to a uniaxial anti-eccentricity system, in particular to a uniaxial anti-eccentricity system for small fan bearings. Background technique [0002] After the traditional small motor shaft sleeve is used for a long time, it is prone to unbalanced force, which leads to eccentricity of the fan blades, which produces loud noise, or excessive force in one direction, which is easy to deform and cannot be restored to its original shape, resulting in eccentricity. The eccentric shaft sleeve drives the fan blades to rotate again and again, which will generate a lot of noise, which will bring great inconvenience to study and life, and make people unable to concentrate on completing tasks, especially when the shaft sleeve is under a large force or used for a long time, such as a fan. When dumping or knocking other sundries, it is easy to eccentrically generate noise, which will bring trouble to the environment that needs to be quiet. When the...

AI Technical Summary

Problems solved by technology

[0002] After the traditional small motor bushing has been used for a long time, it is prone to unbalanced force, resulting in eccentricity of the fan blade, resulting in loud noise, or excessive force in one direction, which is easy to deform and cannot be restored to its original shape, resulting in eccentricity

The eccentric shaft sleeve drives the fan blades to rotate again and again, which will generate a lot of noise, which will bring great inconvenience to study and life, and make people unable to concentrate on completing tasks, especially when the shaft sleeve is under a large force or used for a long time, such as a fan. When dumping or knocking other sundries, it is easy to eccentrically generate noise, which brings troubles to the environment that needs to be quiet. When there cannot be too much noise, such as classroom learning, personal reading in the library or household fans

As people's quality of life is getting higher and higher, their requirements for materials are getting higher and higher. In the process of purchasing electrical appliances, people pay more and more attention to the mute effect. Because traditional small motors are prone to noise, their market share is increasing. The lower the value, the lower the practical value of the traditional small motor bushing

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