Patent UA-98995-C2 (UA)
Title: Device for stabilization of radial position of the axis of rotation of a shaft of aerostatic bearing
Inventor: TARASOV VIKTOR OLEKSIIOVYCH
IPC: B23B19/00
Filed: 2010-08-06
Abstract: A device for stabilization of radial position of the axis of rotation of a shaft of aerostatic bearing comprises compensators of radial displacement of the axis of rotation of shaft of radial aerostatic bearing, measuring instruments of values ​​of gaps, measuring instruments of the angle of rotation of the shaft of radial aerostatic bearing, a calculator, operational amplifiers, differential amplifiers of error signals, "direct - off - reverse" switches", "on - off" switches. The device further comprises filters of selection of the frequency spectrum of high-frequency radial loads, phase-correction circuits, differential amplifiers of high-frequency components of a radial loads, and piezocolumns of gas pressure regulators of compensators of radial displacement of the axis of rotation of the shaft of radial aerostatic bearing consist of a section of compensation of the radial load from the imbalance force and radial component of the cutting force and a section of compensation of high-frequency radial load, wherein the sensors of values ​​of gaps of compensators of radial displacement of the axis of rotation of the shaft of radial aerostatic bearing are connected to the inputs of measuring instruments of gap values, and their outputs are connected to the inputs of the calculator, the outputs of measuring instruments of gap values according to readings of sensors of values of gaps mounted on the axes of basic systems of coordinate systems are connected to the inputs of appropriate filters of selection of the frequency spectrum of high-frequency radial load, and through the switch "on - off" with other inputs of appropriate differential amplifiers of error signals, the outputs of the measuring instruments of the angle of rotation are connected to the inputs of the calculator, the first inputs of differential amplifiers of error signals through the switch "on - off" are connected to corresponding outputs of the voltage of supporting gaps of the calculator, the outputs of differential amplifiers of error signals are connected to the compensation sections of radial loads from the imbalance force and radial component of cutting force of piezocolumns of gas pressure regulators of appropriate groups of gas pressure regulators of compensators of radial displacement of the axis of rotation of the shaft of radial aerostatic bearing, the inputs of operational amplifiers are connected to corresponding outputs of control signals of the calculator, and their outputs via switches "direct - off - reverse" are connected to the first and second inputs of appropriate differential amplifiers of error signals, the output of filters of selection of the frequency spectrum of high-frequency radial load are connected to the inputs of appropriate phase-correction circuits, and their outputs are connected to the first inputs of appropriate differential amplifiers of high-frequency radial load, and their second inputs are connected to the ground, the outputs of differential amplifiers of high-frequency radial load are connected to the sections of compensation of high-frequency radial load of piezocolumns of gas pressure regulators of appropriate groups of gas pressure regulators of compensators of radial displacement of the axis of rotation of the shaft of the radial aerostatic bearing.