SU949367A1 - Balancing device - Google Patents

Description

(54) - BALANCING DEVICE

one

The invention relates to a balancing technique and can be used to balance pofopOB centrifuges.

A balancing device is known, which contains a distribution tank with discharge pipes located inside it and connected to balancing tanks 1.

The disadvantages of this device include the fact that it balances hinged rotors at one point and does not balance the rotors fixed on two or more supports in the subcritical and supercritical speeds.

The closest in technical essence to the proposed device is a balancing device containing a vertically positioned rotor, a distribution tank installed coaxially with it, balancing tanks located at diametrically opposite points of the rotor circumference, and pipelines

capacity at points on its outer circumference with diametrically opposite tanks (2.

A disadvantage of the known device is that it is operable in subcritical velocity ranges.

The purpose of the invention is to balance the rotor in the range of subcritical and supercritical speeds.

The goal is achieved by the fact that the device is equipped with additional pipelines connecting tanks with a tank at points on its outer circumference, lying at one radius with points of tanks and above the point of connection of the first pipelines, and the entrances to the pipelines of the upper row are located on a circle of larger diameter in comparison with the diameter of the circle, the location of the 2Q inlets in the pipeline of the lower row.

Claims (2)

FIG. 1 shows a balancing device, diametrical section; in fig. 2 type B on flash. I. 39 Balancing device contains vertically located rotor 1, distribution tank 2 installed coaxially with it, balancing tanks 3. located on diametrically opposite points of the rotor circumference, pipelines 4 connecting the capacity in points on its outer circumference with diametrically opposite tanks. The device also contains additional piping 5 connecting tanks with containers at points on its outer circumference lying on the same radius with points of tanks and above connection points of pipelines 4. Inputs 6 of pipelines 5 of the upper row are located on a circle of larger diameter compared to diameter the circumference of the arrangement of the inlets 7 of the pipelines 4 of the lower row. The distribution tank 2 has an opening A, to which a nozzle 8 is connected, connected to a bench line 9 of the liquid supply. The tanks are rigidly connected to the rotor installed in the supports 10 and I. The device operates as follows. Through the nozzles 8, from bench magstar 1, a liquid is supplied, which, in the presence of unbalance, enters distribution tank 2 through opening A. Rotor 1 is driven to rotate. Under the influence of centrifugal forces and gravity forces, the container 2 occupies a position in which the free surface of the liquid has a curved shape. In this case, the inlets 7 in the pipelines of the lower row, with the unbalance and subcritical rotor turns, are below the liquid level, and the inlets 6 in the upper row pipelines protrude above the level of the hopper. The fluid through the inlets 7 enters the diametrically opposed balancing tanks 3. This ensures the balancing of the rotor at subcritical revolutions. Upon reaching supercritical revolutions, the free surface of the liquid in the distribution tank 2 takes on such a form that the inlets 6 are under the liquid level and the entrances 7 are above the liquid level. In this case, the fluid through the inlets 6 enters the balancing tanks 3 and balances the rotor at super-critical speeds. In the absence of an imbalance, the liquid coming from the nozzle 8 does not fall into the distribution tank 2, since in this case there is no displacement of the geometric axis of the shaft from the axis of rotation. This device provides the balancing of the rotating rotor at sub-critical and super-critical revolutions. This is achieved by switching the fluid supply to the upper row of pipelines and changing the direction of fluid drainage to the balancing tanks when the rotor rotates through the critical mode. The proposed device allows to balance vertically mounted on two or more rotor supports of the centrifuges in a wide range of speeds. Claims of the invention A balancing device comprising a vertically positioned rotor, a distribution tank mounted coaxially with it, balancing tanks located at diametrically opposite points of the rotor circumference, and pipelines connecting the container at points on its outer circumference with diametrically opposite tanks, characterized in that , for the purpose of balancing the rotor in the range of subcritical and supercritical speeds, it is equipped with additional pipelines connecting the cut Voir with the container at points on its outer circumference lying on the same radius with the point of the tank and above the connection points of the first pipeline, and the inputs to the upper row lines are arranged on a circumference of greater diameter than the diameter of the circle arrangement of entrances to the ducts of the lower row. Sources of information taken into account during the examination 1. FM Dimentberg and others. Kolebani machines. Mashgiz., 19.64, p. 269-274. 2. Authors certificate of the USSR, cl. G 01 M 1/38, 1967 (prototype). fe fc./