Rotor balance correcting method

Abstract

The invention relates to a rotary body correcting method, in particular to a rotor balance correcting method. The balance correcting method comprises the following steps of: marking, drawing a horizontal line, measuring, recording, balancing and the like. The correcting method has the characteristics of simplicity, short correcting time, high correcting precision and the like. A rotor is not required to be detached, the rotor is directly corrected when equipment stops running, and the 3-5 days period for correcting by using a lateral vibration instrument or a balancing rack in the prior art can be shortened to 1-2 hours, so that the correcting time can be greatly reduced, the utilization rate and the economic benefits of the equipment are improved, for example, if a generator unit of 150 megawatts is overhauled for 3 days, income of more than 900 thousand yuan is lost. By using the correcting method, the correcting precision can meet the running technical requirement of the equipment, and the vibration of the corrected equipment can be controlled to be between 35 and 60 microns and can meet the running technical requirement of the equipment.

Description

Technical field [0001] The invention relates to a method for correcting a rotating body, in particular to a method for correcting rotor balance. Background technique [0002] During the use of large rotors such as fans and steam turbines, due to corrosion, wear, thermal deformation and other forms, the imbalance of the rotors will be caused, which will cause the vibration of the fans and steam turbines. The vibration will generate a lot of noise and make the working environment worse. , the most important thing is that the vibration accelerates the wear of the bearings of the rotor supporting parts, shortens the service life of the equipment, and causes destructive accidents in severe cases. When the unbalance of the rotor exceeds the specified amount, balance correction must be performed. [0003] At present, the commonly used methods of revolving body correction mainly include static balance and dynamic balance. However, for the balance correction of large rotating bodie...

AI Technical Summary

Problems solved by technology

Due to the high price of the side vibration instrument, general enterprises do not have the measurement conditions, and the equipment needs to be started and stopped many times during the measurement process. Due to the huge size of the tested equipment, multiple starts and stops will cause a great impact on the equipment

When using the balance frame for balance correction, the rotor needs to be disassembled and placed on the balance frame for balance correction, which is time-consuming and laborious, and the correction time is long, which affects production