Impeller fan on-site dynamic balance method

Abstract

The invention relates to an impeller fan on-site dynamic balance method, equipment used for measurement is a vibration meter and a weighing device, the vibration meter is used for measuring the vibration condition of a fan bearing seat, the weighing device is used for weighing the mass of a test weight block, and the test weight block is fixed at the edge of an impeller by a welding method; the original amplitude of the measuring equipment is a0; at four equal division points at the circular edge of an impeller of the impeller fan, amplitudes in the areas 1, 2 and 3 are respectively measured,wherein the amplitudes are a1, a2 and a3 respectively; the weight of the trial weight block is set to be w, the absolute amplitude excited by the trial weight block is set to be X, and the opposite direction of phi is the position needing balance weight; through the formula X2 is equal to (a12 + a32-2 * a02) / 2, x is obtained; COS phi is equal to (a12-a32) / 4X a0, wherein phi is equal to Arc COSy, and W is equal to w. a0 / X; and the opposite direction of the phi value is a counterweight position. And the counterweight point and the weight of the counterweight can be conveniently measured.

Description

technical field [0001] The invention specifically relates to an on-site dynamic balancing method for an impeller fan. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] According to the large vibration problem caused by the unbalanced quality of the fans on the site of various enterprises, the solution is to use a dynamic balancer on site. The dynamic balancer is not only expensive, but also requires specially trained technicians to operate, which is technically difficult and operable. Sex is not strong. [0004] The existing on-site dynamic balance calculation method, one is to install the bracket first, install the key phase probe and the shaft vibration probe on the brac...

AI Technical Summary

Problems solved by technology

[0003] According to the large vibration problem caused by the unbalanced quality of the fans on the site of various enterprises, the solution is to use a dynamic balancer on site. The dynamic balancer is not only expensive, but also requires specially trained technicians to operate, which is technically difficult and operable. Sex is not strong

[0004] The existing on-site dynamic balance calculation method, one is to install the bracket first, install the key phase probe and the shaft vibration probe on the bracket, and need to slot, the process is complicated, and multiple values ​​need to be measured, which increases the error of the measurement result

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