SU1226083A1 - Method and arrangement for determining float gyrounits unbalance - Google Patents

Abstract

This invention relates to mechanical engineering and can be used in static balancing of float gyro nodes in a liquid. The purpose of the invention is to simplify the balancing process and the design of the device for its implementation. The floaters with a balancing device are immersed in a liquid to spin the rotor up to revolutions at which the value of the kinetic moment is less than the working one, but not lower than the value of the specific moment of the damping balancing liquid, free the float gyro node from the balancing device, measure the movement of the gyrolan in the plane perpendicular to the longitudinal the float axes when the gyromotor runs, and the imbalance value is determined. 2 sp.f-ly, 1 ill.

Description

one

The device relates to a balancing technique, in particular to the static balancing of the float gyroscopes in a liquid.

The purpose of the invention is to simplify the balancing process and the device for its implementation.

The drawing shows a device for implementing the proposed method

The device G for determining the imbalance of the float girooses contains a balancing pool 1 with a liquid, the information 2 installed in it, the supports 3 fixed on it and the drive 4,

current sensor 5, switch 6, arresting device 7 with the bark of electromagnets 8, time meter 9 and gyro angle sensor 10, consisting of illuminator 11 and receptacle 12. On the supports 3, there is a float module 13 with rotor 14.

The method is implemented as follows.

A float girousel with a balancing device is immersed in a liquid, the rotor is unwound. Up to the revolutions at which the kinetic moment i is less than the working one, but not lower than the specific damping torque of the balancing liquid, the float girue is released from the balancing device, the movement of the float gire node in the plane perpendicular to it is measured the longitudinal axis of the float during the coasting of the gyrometer, and the imbalance value is determined according to the equation

M, t

where H - the value of the kinetic MO40

45

A gyremetor mentor measuring dis balance; P is the angular displacement of the gore knot; t is the time interval between the moment of the float release and the fixation of the magnitude of its movement. .

The maximum spur of the angular displacement of the float gyro will be when the kinetic moment of the rotor is equal to the specific moment of the damping of the fluid.

The device works as follows.

Gyrosello fixed in base 2 on supports 3 with arresters 7 ke-55 p and electromagnets 8 so that the direction of the vector H coincides with the risky I (in this position the vector P is set

50

2

ped ped 5 to the Z axis direction).

The signal of the current sensor 5 on the magnitude of the angular momentum H in the switch 6 is compared with the value of the specific damping moment. The switch 6 synchronously starts the time meter 9, the sensor 10 of the rotation angle of the girule, releases the float lift arm 13 with the arrestor 7 and turns off the power of the rotor 14 with the help of the actuator 4. The pulse switch 10 during the time interval t fixes the precession oj of the float lift arm 13.

Then the direction of the vector H is sown with a risk P (turn H at an angle of 45 ° in the other direction relative to the Z axis, i.e., 90 to position I) and determine uJ- for the same time interval t.

The magnitude of the imbalance in two dimensions is determined according to the equation

Mas N

U

ETC

I

) + (oJr)

Method and device for its installation. The implementation also improves the accuracy of determining the imbalance of the float girth, without reducing the labor productivity of the subsequent balancing operation.

Claims (2)

1. A method for determining an imbalance of float gyro assemblies, which consists in installing a gyro node in a balancing device in a liquid, causes the rotor of the gyro to rotate with a drive and measure its movement, characterized in that, for the sake of simplicity, the rotor drive t rotate up to revolutions at which the value of the kinetic moment is chosen not lower than the value of the specific moment of the damping of the gyro, free it from the tool, disconnect the rotor from the drive, measure the angular displacement of the gyro in the plane perpendicular to its longitudinal axis, and the moment M from the imbalance is determined from the equation M where H - the value of the kinetic moment of the rotor when measuring the imbalance; , J - angular displacement of the gyro; t is the measurement time interval. 2. A device for determining the imbalance of float girooses, containing a balancing bath with liquid, the base installed in it, the supports fixed on it and the drive characterized in that. that, in order to simplify the device, it is equipped with a series-connected current sensor, a switch and arresters connected to the supports and the drive, a time meter connected to the switch and the gyro rotation angle sensor about the axis perpendicular to its longitudinal axis. Compiled by S. Timofeev Editor A. Kozoriz Tehred V. Kadar Corrector Ferenc Order 2112/30 Circulation 778 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5 Production and printing company, Uzhgorod, st. Project, 4