Techs for Field Balance
Article Source: Jp Balancing Machine
Time:2017-08-23
Modern dynamic balancing technology developed at the beginning of this century with the advent of steam turbines. With the rapid development of industrial production, rotating machinery gradually to the precision, large-scale, high-speed direction, the mechanical vibration problem is more and more prominent. Mechanical vibration of the machine itself and its surrounding environment will bring a series of hazards. Although the causes of vibration are diverse, it is generally accepted that "imbalance" is the main reason. According to statistics, about 50% of the mechanical vibration is caused by the imbalance force. Therefore, it is necessary to change the mass of the moving part of the rotating machine and reduce the unbalanced force, that is, to balance the rotor.
There are many factors that cause the rotor imbalance, such as the no uniformity of the rotor material, the imbalance of the coupling, the asymmetry of the keyway, the error of the rotor processing, the corrosion, wear and thermal deformation of the rotor during the movement. The imbalance caused by these factors is generally random and cannot be calculated and needs to be measured and corrected by gravity test (static balance) and rotation test (dynamic balance) to reduce it to the allowable range. The most widely used balance method is the process balance method and the whole machine on-site dynamic balance method. As an important branch of the whole field dynamic balancing technology, online dynamic balancing technology is also in a vigorous development, very promising. Because the process balance method is the earliest one of the classic dynamic balance method.
Machine balancing technology is to solve the process of balance technology in the existing problems.