METHOD AND APPARATUS FOR BALANCING THE ROTOR Russian patent published in 2021 - IPC F01D5/02 G01M1/32 

FIELD: rotors.

SUBSTANCE: method for balancing the rotor for a gas turbine is provided. The method includes a stage wherein a rotor (100) is provided, containing: a first bearing (140) and a second bearing (142), and multiple correction planes (150) containing a first correction plane (152) and a second correction plane (154). The method additionally includes a stage wherein the rotor (100) is installed for balancing by means of stages of receiving the first bearing (140) on a first base (212) and the second bearing (142) on a second base (214). The method additionally comprises a stage wherein a basic run is executed by means of stages wherein: the rotor (100) is rotated at a preset balancing rotation rate and vibrations are measured on the first base (212). The method additionally comprises a stage wherein partial balancing and a first run are executed with impact from the rotor (100) by means of stages wherein: a first balancing weight (W1) is installed on the first correction plane (152) to reduce vibrations on the first base (212). The method additionally includes a stage wherein a first run with impact is executed by means of stages wherein: the rotor (100) is rotated at a preset balancing rotation rate and vibrations are measured on the first base (212) and the second base (214), the first balancing weight (W1) is left installed for all subsequent runs with impact. The method additionally includes a stage wherein a second run with impact is executed by means of stages wherein: a first calibration weight (M1) is installed on the second correction plane (154), the rotor (100) is rotated at a preset balancing rotation rate and vibrations are measured on the first base (212) and the second base (214), and the first calibration weight (M1) is removed. The method additionally includes a stage wherein a final balancing of the rotor (100) is executed by means of stages wherein: the final balancing weight (W1’) is installed on the first correction plane (152) and a second balancing weight (W2) is installed on the second correction plane (154), depending on the vibrations measured during the first run with impact and the second run with impact.

EFFECT: invention provides a possibility to reduce the number of iterations required for balancing.

16 cl, 4 dwg