SU1341508A1 - Method of determining disbalance of flexible rotor - Google Patents

Abstract

The invention relates to a balancing technique and can be used in determining the imbalance of rotors of angular accelerometers. The aim of the invention is to increase the accuracy of balancing. The rotor is mounted eccentrically on the centrifuge table so that it can elastically rotate around its axis parallel to the axis of rotation of the centrifuge. After that, turn off the centrifuge and measure the rotor ENTRY. Then the centrifuge is stopped, the rotor is reset to a new position by rotating it about its axis at a certain angle, the centrifuge is turned on, and the rotor twisting angle is measured again. The largest value of the angle of rotation will be obtained if the center of gravity of the rotor is located in a plane passing through the axis of the rotor perpendicular to the radius of the centrifuge. C (L 00 ate about 00

Description

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The invention relates to a balancing technique and can be used in determining the imbalance of rotors of angular accelerometers.

The purpose of the invention is to improve the accuracy of balancing.

The essence of the method is that the rotor is installed eccentrically on the centrifuge table so that it can elastically rotate around its axis parallel to the axis of rotation of the centrifuge. After that, turn off the centrifuge and measure the angle of rotation of the rotor. Then the centrifuge is stopped, the rotor is reset to a new position by rotating it about its axis at a certain angle, the centrifuge is turned on and again, the angle of rotation of the rotor is measured. The largest value of the angle of rotation will be obtained if the center of gravity of the rotor is located in a plane passing through the axis of the rotor perpendicular to the radius of the centrifuge.

The method is convenient for such rotors, which are fixed in a housing on an elastic suspension, for example, for rotors of angular accelerometers. In this case, installation of special elastic elements between the centrifuge is not required. Compiler S. Ivanin Editor L. Povkhan Tehred A. Kravchuk Proofreader A, Zimokosov

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VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project s 4

eight

and the rotor, since the rotor with a torsion hanger can be fixed in the centrifuge using its own torsion.

The proposed method allows to increase the accuracy of balancing by reducing the moment of friction when the rotor rotates, since the amount of friction of elasticity of the torsion suspension

small enough. In addition, the accuracy of determining the imbalance is increased by reducing the vibration overload during balancing.

Claims (1)

Formula from arr. The method for determining the imbalance of the flexible rotor is that the rotor is subjected to a test bench, to an external disturbing force, and an imbalance is determined by analyzing the measured parameter, characterized in that In order to increase accuracy, a centrifuge is used as a test stand, on which a rotor is installed so that the axis of elastic rotation of the rotor is parallel to the axis centrifuges, and as the measured parameter use the angle of rotation of the rotor with angular re-installations of the rotor about its own axis