Rotor system on-line dynamic balancing system and rotor system on-line dynamic balancing method

Abstract

The invention provides a rotor system on-line dynamic balancing system and a rotor system on-line dynamic balancing method. The rotor system on-line dynamic balancing system comprises a signal sensor, a signal acquirer, a data processing system, a signal transmitter, and a balance adjuster. The signal sensor is used to acquire unbalanced vibration information of a rotor system, and is used to convert the unbalanced vibration information into an analog signal, which is transmitted to the signal acquirer. The signal acquirer is used to convert the analog signal into a digital signal, and is used to transmit the digital signal into the data processing system after the denoising and the filtering process of the digital signal. The data processing system is used to calculate and process the received digital signal, and is used to acquire the unbalanced mass and the phase information of the rotor system, and is used to generate a motion signal, which is transmitted to the signal transmitter. The signal transmitter is used to transmit the motion signal to the balance adjuster. The balance adjuster is used to generate a motion in the adjuster, and is used to adjust the unbalanced mass of the rotor system, and then the on-line dynamic balancing of the rotor system is realized. The dynamic balancing of the rotor system is completed without requiring shutdown, and repeated starting and stopping steps of a conventional dynamic balancing experiment are saved, and therefore the rotor system on-line dynamic balancing system and the rotor system on-line dynamic balancing method are suitable for systems, which are not suitable for being shut down, and then economic losses caused by the shutdown are reduced.

Description

technical field [0001] The invention relates to the field of on-line dynamic balancing of rotors, in particular to a system and method for realizing on-line dynamic balancing of a rotor system by calculating unbalanced quantities and phases with a computer and controlling an external balance regulator. Background technique [0002] The actual rotor inevitably has errors in the process of manufacturing, installation, etc., resulting in the misalignment of its geometric axis and the rotation axis. When the rotor rotates, the force system formed by the centrifugal inertial force of each micro-element mass of the rotor is not a balanced force system. At this time, the rotor is said to be unbalanced or unbalanced. Rotor imbalance is the main source of excitation in rotating machinery. Statistics show that about 60%-70% of rotating machinery fails due to vibration, of which about 30% fail due to rotor imbalance. [0003] The dynamic balance experiment under the existing conditio...

AI Technical Summary

Problems solved by technology

[0010] 1. The dynamic balance of the rotor system can only be achieved in a short period of time, and the long-term stable operation of the rotor system cannot be guaranteed;

[0011] 2. It can only be realized in the laboratory and cannot be applied to actual production

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