High-balancing-capacity high-precision online dynamic balance terminal suitable for fan rotors

Abstract

The invention discloses a high-balancing-capacity high-precision online dynamic balance terminal suitable for fan rotors. The dynamic balance terminal comprises high-precision double-wave speed reducing motors of the same structures on the upper and lower sides; the high-precision double-wave speed reducing motors comprise stators and movers; the movers are mounted on short shafts; the short shafts are connected with elliptic cams; the elliptic cams are positioned in speed reducing gear discs; the speed reducing gear discs are engaged with motor outer shells; the motor outer shells are connected with flange motor end covers; the speed reducing gear discs are fixedly connected with motor output shafts; the motor output shafts are connected with the upper and lower ends of a center shaft; the center shaft is connected with an inner mass block; the motor output shaft on the upper side is connected with the upper end of an outer mass block through a flange shaft sleeve; the lower end of the outer mass block is in interference fit connection with the flange motor end cover on the lower side through a bearing; the inner and outer mass blocks are driven by the upper and lower motors to form unbalance quantities with the same magnitudes in opposite directions to finish the mass adjustment of the rotors; and the dynamic balance terminal meets high-balancing-capacity and high-precision online dynamic balance requirements of the fan rotors.

Description

technical field [0001] The invention relates to the technical field of online dynamic balancing of rotors, in particular to a large balancing capacity and high-precision online dynamic balancing terminal suitable for fan rotors. Background technique [0002] The unbalance of the fan rotor is mainly caused by the uneven distribution of the rotor mass. When the rotor is working, the centrifugal inertial force generated by the unbalanced quantity breaks the original balance force system and produces mechanical vibration and other adverse effects, thus affecting the mechanical accuracy and life. In order to ensure the safe and smooth operation of the rotor, the process of redistribution of mass by directly adding or removing certain mass on the rotor is called dynamic balancing. The general rotor balancing methods mainly include offline dynamic balancing, on-site dynamic balancing and online dynamic balancing. At present, the dynamic balancing of most fan rotors is off-line dyn...

AI Technical Summary

Problems solved by technology

Although the device has the advantages of fast response speed and no electromagnetic interference, the disadvantages of the device itself, such as poor centering, low speed stability, limited balance ability, and certain imbalance of the device itself, cannot be ignored. still very limited

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