METHOD OF DYNAMIC BALANCING OF THE ROTOR IN TWO PLANES OF CORRECTION Russian patent published in 2023 - IPC G01M1/00 

FIELD: mechanical engineering.

SUBSTANCE: method of dynamic balancing of the rotor, for example, centrifugal pumps, compressors, extractors, centrifuges. Performing several sequences of measuring operations, in which the correction masses are fixed on a stationary rotor in two correction planes and the vibration velocity of the bearing support is measured during the rotation of the rotor, calculation operations, in which the next approximation of the imbalance parameters of the correction masses and the control measurement with calculated correction masses, in which the reduction of the vibration velocity is confirmed to a value at which the residual imbalance of the rotor does not exceed the permissible value. The method of balancing the rotor in two planes of correction, including operations in which the correction masses are fixed on a stationary rotor in two planes of correction comprises measurement of the vibration velocity of the bearing support during rotation of the rotor, the next approximation of the parameters of the correction masses imbalance is calculated and a control testing is carried out which confirms the decrease in vibration velocity to a value at which the residual imbalance of the rotor does not exceed the permissible value, both correction planes are placed on one side of the centre of the rotor mass, the initial correction masses are fixed diametrically opposite to each other, the initial imbalance of the correction mass, conditionally the first, is set; in closest to the centre of the rotor mass of the correction plane greater than the same value of another correction mass, conditionally the second, the experimental data obtained are approximated using a mathematical model in the form of an explicit dependence equation with vibration velocity on the parameters of the correction masses, one set of imbalances of the control correction masses is selected from the obtained set of solutions, with which the vibration velocity is measured, which is within the error interval of the measuring device and corresponding to the minimum residual imbalance of the rotor.

EFFECT: reduction of number of experiments to 8-12 measurements of vibration velocity, reduction of residual imbalance of the rotor to a value corresponding to the minimum vibration velocity in the error range of its measurement by a measuring device with a minimum value of correction masses.

7 cl, 13 dwg, 7 tbl