Vertical-shaft-preventing fan impeller for strip-shaped material conveying

Abstract

The invention discloses a vertical-shaft-preventing fan impeller for strip-shaped material conveying. The impeller comprises a hub, front fan blades, a fan blade cover plate and back fan blades; the fan blade cover plate is fixed on the hub through screws; the front fan blades are fixedly mounted on the front surface of the fan blade cover plate; the back fan blades are fixedly mounted on the back surface of the fan blade cover plate through screws; each back fan blade comprises a fan-shaped plate A and a fan-shaped plate B which are arranged in an L shape; and two circular through holes are formed in each fan-shaped plate A. The back fan blades are mounted on the back surface of the impeller, so that materials can be completely prevented from entering back space of the impeller and can be completely discharged from an air outlet, and the phenomena of winding, rubbing and fusing of the materials are thoroughly eliminated.

Description

technical field [0001] The invention relates to the field of material conveying, in particular to a bar-shaped material conveying anti-vertical shaft fan impeller. Background technique [0002] Traditional material conveying fans all use single-sided impeller 8, such as image 3 As shown, when the motor 9 starts to rotate, there are actually two vent holes on the entire fan structure, one is the air outlet 10, and the other is the motor shaft hole 11. When the fan is working, the front side of the single-sided impeller 8 generates pressure, while the space behind the impeller is in a state of pressure relief. Part of the air flow carries a certain proportion of materials moving towards the motor shaft hole 11. This movement process will cause a series of bad effects: [0003] a) When the material moves to the motor shaft hole 11, the material will be wound on the motor shaft, which will cause a safety accident; [0004] b) As the material accumulates more and more in the sp...

AI Technical Summary

Problems solved by technology

[0004] b) As the material accumulates more and more in the space behind the impeller, it will cause friction between the impeller, material and fan casing, resulting in abnormal resistance, resulting in increased current, wasting energy, and even burning the motor;

[0005] c) Due to the continuous friction of the material in the space behind the impeller, the temperature continues to rise. When the melting point is exceeded, if the fan stops running and the temperature drops, the impeller, material and fan casing will fuse together and the fan cannot be restarted.

[0006] The above problems must be manually decomposed and cleaned up to solve the problem, which requires a lot of manpower and material resources

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