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Axial flow fan

An axial flow, fan technology, applied in the field of the connection structure between the shaft and the hub/hole, can solve the problems of inconvenient installation/removal, large vibration, etc., to reduce the amount of vibration, reduce noise, and facilitate installation.

Inactive Publication Date: 2018-04-20
金俊磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Axial flow fans / fans are widely used in factories, life, scientific research and other fields. The existing axial flow fans have the problems of large vibration and inconvenient installation / disassembly

Method used

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Examples

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Embodiment Construction

[0018] The present invention provides an axial flow fan, which will be further described in detail below in conjunction with the accompanying drawings.

[0019] See attached Figure 1-3 : The axial flow fan includes a blade 1, a hub 2, a rotating shaft 3, a diversion cap 4, a damping pad 5, a butterfly spring 6, an outer cylinder 21, an inner cylinder 22, the first stage 23, and the second stage 24 , The protrusion 25, the first shaft segment 31, the second shaft segment 32, the third shaft segment 33, the fourth shaft segment 34, the groove portion 35, the flat pad portion 51, and the trapezoidal portion 52.

[0020] A plurality of evenly distributed blades 1 are arranged on the outer periphery of the hub 2, and the installation angle of the blades 1 is 17-19°. The hub 2 includes an outer cylinder 21 and an inner cylinder 22, and the outer cylinder 21 and the blade 1 are integrally injection-molded, and the material thereof is high-strength engineering plastic / resin. The ro...

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PUM

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Abstract

The invention relates to an axial flow fan. The axial flow fan comprises blades, a hub, a rotary shaft and a fairing cap, wherein the multiple blades are uniformly distributed on the periphery of thehub and each have a preset mounting angle; the rotary shaft is connected with the hub, and the fairing cap is located at the left end of the hub. The axial flow fan is characterized in that the hub comprises an outer barrel and an inner barrel, wherein the outer barrel and the blades are integrally formed through injection molding, and the rotary shaft is in threaded connection with the inner barrel. The inner barrel comprises a first step section and a second step section, protrusions are disposed on the periphery of the inner barrel and are a plurality of isosceles trapezoid protruding blocks which are uniformly distributed along the circumference, the inner barrel is made of metal or alloy, trapezoid grooves matched with the protrusions are formed in the inner circumference of the outerbarrel, and the outer barrel and the inner barrel are formed through injection molding. An impeller and the shaft can be conveniently assembled, disassembled and maintained, the amount of vibration transmitted to a shell and other assembled portions through the rotary shaft due to impeller vibration is reduced, and therefore the noise is lowered.

Description

technical field [0001] The invention relates to the technical field of ventilation and air conditioning, in particular to a connection structure between an axial flow fan / fan shaft and a hub / hole. Background technique [0002] Axial flow fans / fans are widely used in factories, life, scientific research and other fields. The existing axial flow fans have the problems of large vibration and inconvenient installation / disassembly. The structural design of the axial flow fan of the present invention is reasonable, easy to install / disassemble, reduces vibration, and improves the efficiency of the fan. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an axial flow fan, which is intended to facilitate installation / disassembly and reduce vibration. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] An axial flow fan, including: blades,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/32F04D29/64F04D29/66
CPCF04D29/329F04D29/325F04D29/644F04D29/668
Inventor 金俊磊
Owner 金俊磊