What is the function of the rotor dynamic balance of a brushed motor?

Rotor dynamic balance is a very critical process in the production and processing of brushed motors. Whether it is a cast aluminum rotor or a wound rotor, it is difficult to ensure the symmetry of the rotating body during the process of shaft, iron core and later cast aluminum, wire embedding, wiring, and dipping. The method of dynamic balance of the rotor must be adopted. Reduce or eliminate the unbalance of the rotor to meet the control requirements for vibration and noise during the operation of the motor.

Due to the influence of factors such as uneven material, process error, uneven deformation of rotor blades, uneven wear or local block loss. There is always an imbalance on the rotor. Rotor imbalance is the main source of excitation for brushed motors. Unbalance causes rotor vibration, accelerates the wear of bearings, shaft seals and other components, and reduces the service life and efficiency of the machine. For this reason, in the process of manufacturing or repairing brushed motors. Even during operation, the rotor needs to be dynamically balanced. Dynamic balance is to change the mass distribution of the rotor by removing weight or adding counterweight on the rotor, so that the rotor vibration caused by the centrifugal force of the centrifugal force or the dynamic load on the bearing is reduced to the allowable range, so as to achieve the smooth operation of the engine. Purpose.