The dynamic balance detection and correction of the motor rotor is an effective method to reduce the running noise of the motor. In the process design of rotor dynamic balance correction, it is the key to determine the total residual unbalance of the motor rotor and distribute the total residual unbalance to several correction planes

Dynamic balance tester:
The dynamic balance tester can be used for supporting the production of dynamic balance machines, reforming the old dynamic balance machines and conducting on-site dynamic balance tests. In recent years, with the progress of science and technology in the machinery industry, the rotating speed of rotating machinery is getting higher and higher, and people have higher requirements for the vibration and other performance of such products. The important way to improve this performance is to improve the accuracy and efficiency of dynamic balancing. This instrument is developed successfully for this situation. The instrument has the characteristics of high precision, high accuracy, simple operation and easy maintenance. The instrument composition is all controlled by integrated circuits and the latest single-chip microcomputer. Among them, automatic tracking and filtering technology, automatic compensation technology, program control technology and self-learning technology are adopted, and the performance is stable.
Commonly used machinery contains a large number of rotating parts, such as various transmission shafts, spindles, motors and steam turbine rotors, which are collectively referred to as rotating bodies. Under ideal conditions, the pressure on the bearing is the same when the rotating body rotates and does not rotate. Such rotating body is a balanced rotating body. However, due to various factors such as uneven materials or blank defects, errors in processing and assembly, and even asymmetric geometric shapes in design, various rotating bodies in the project cannot offset each other when rotating. The centrifugal inertia force acts on the machinery and its foundation through the bearing, causing vibration, generating noise, and accelerating bearing wear, It can shorten the service life of machinery and cause destructive accidents in serious cases. For this reason, the rotor must be balanced to make it reach the allowable balance accuracy level, or the resulting mechanical vibration amplitude should be reduced within the allowable range.
In modern times, many balancing methods are used for various machines. For example, single-sided balancing (also called static balancing) often uses a balancing frame, and double-sided balancing (also called dynamic balancing) uses various dynamic balancing testing machines. The static balance accuracy is too low and the balance time is long; Although the dynamic balancing test machine can balance the rotor itself well, when the rotor size difference is large, the dynamic balancing machine with different specifications and sizes is often required, and the rotor still needs to be removed from the machine during the test, which is obviously not economical and very labor-intensive (such as the turbine rotor after overhaul). In particular, the dynamic balancing machine cannot eliminate the system vibration caused by assembly or other follow-up components. Balancing rotors under normal installation and operation conditions is usually called "on-site balancing". On-site balancing can not only reduce the workload of rotor disassembly and assembly, but also eliminate the need for dynamic balancing machine; At the same time, the test state is consistent with the actual working state, which is conducive to improving the accuracy of measuring the unbalance and reducing the system vibration. According to the international standard ISOl940-1973 (E) "Balance accuracy of rigid rotating bodies", precision rotors with a balance accuracy of G0.4 must be balanced on site, otherwise the balance is meaningless. In equipment maintenance, the on-site dynamic balancing technology of the whole machine shows its advantages. Because the rotor will inevitably cause different degrees of permanent deformation after a long time of high-speed operation; Friction and wear, all of which will lead to the decline of balance accuracy. An effective way to solve these problems is to carry out on-site dynamic balancing of rotating machinery. In addition, the fault diagnosis of rotating machinery can also be carried out by using the on-site dynamic balance method of the whole machine combined with conventional detection methods.
Foshan Huake Zhichuang Intelligent Equipment Co., Ltd. is an integrated enterprise focusing on the R&D, production and sales of automatic and semi-automatic balancing machines. It focuses on the R&D of intelligent and differentiated products, has the hard power of software development and mechanical design, promotes the development of balancing machine industry, and aims to become a leading enterprise in the balancing machine industry.