Draught fan assembling modality adjusting system and draught fan system

Abstract

Embodiments of the invention disclose a draught fan assembling modality adjusting system and draught fan system, comprising a draught fan modality testing device, an electric motor and vanes; the upper circumferential surface of the hub of the vanes is provided with a plurality of mounting holes which are communicated with vane shaft holes of the vanes; the motor shaft of the electric motor is installed in a vane shaft hole; an adjusting device for adjusting the assembling modality of the electric motor and the vanes is installed inside any of the plurality of mounting holes. The contact point of the electric motor and the vanes is changed by the adjusting device inside the plurality of mounting holes on the hub of the vanes. The draught fan assembling modality adjusting system in the embodiments of the invention is able to make the vanes contact with the motor shaft by setting a plurality of contact points. The contacting and matching status between the vanes and the motor shaft can be adjusted by contacting the adjusting component, so as to adjust the mass distribution and restrained supporting conditions of the electric motor and the vanes, thereby enabling the draught fan modality testing equipment to achieve analyzing and testing the affection of the contact point mass distribution to the assembling modality.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and more specifically relates to a fan assembly mode adjustment system and a fan system. Background technique [0002] With the common development of inverter air conditioner with high performance and energy saving and environmental protection, this requires the fan system to have high speed and multi-speed operation capabilities. High speed ensures the heat dissipation demand brought by high performance, and multi-speed ensures low-speed operation under non-harsh working conditions. , to achieve energy-saving requirements. For this reason, inverter air conditioners mostly use DC motors. However, under the high-speed and multi-speed requirements of the fan system, unreasonable assembly modes can easily cause serious noise problems under the action of motor rotation frequency harmonics. [0003] The so-called mode refers to the natural vibration characteristics of the mechanical structu...

AI Technical Summary

Problems solved by technology

[0005] In the assembly of the motor and the fan blades in the fan system, the mass distribution of the contact point cannot be predicted and analyzed; the assembly mode cannot be changed, the analysis and test of the influence of the mass distribution of the contact point on the assembly mode cannot be carried out, and a comprehensive assembly mode data table cannot be obtained for noise diagnostics

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