Dynamic balance correcting method for fan
A correction method and fan technology, applied in the static/dynamic balance test, machine/structural component test, measuring device, etc., can solve the problems of enterprise loss, increase of production and operation cost, consumption of large manpower and material resources, etc., to reduce production The effect of reducing operating costs, prolonging the maintenance and replacement cycle, and saving manpower and material resources
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[0027] Specific embodiment: The mass of the impeller 2 of a fan is M=10000kg, the radius of the impeller 2 is r=1200mm, the working speed of the impeller 2 is n=1000r / min, and the balance level is G6.3. The dynamic balance of this fan is destroyed. First, determine the unbalance point of the fan, and use the vibration meter to measure the radial vibration displacement of the fan due to the unbalance △ = 0.10mm, and then calculate the allowable unbalance eper = (G×1000) / (n / 10)=(6.3×1000) / (1000 / 10)=63μm, the allowable residual unbalance of the fan m=(eper×M) / (r×2)=(63×10000) / (1200×2 )=262.5g, then calculate the unbalanced amount of the fan m"=(m / 0.13)×△=the unbalanced amount of the fan m”=(262.5 / 0.13)×0.10=201.9g, calculate the unbalanced amount of the fan m”, cut The counterweight 1 with a weight of 201.9g can be balanced by fixing the counterweight 1 at the non-working position of the impeller 2 at an unbalanced point corresponding to an angle of 180°.
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