Balancing

Balancing is a process in which the distribution of the rotating masses of a body (shaft, flywheel, etc.) is measured and, if necessary, corrected. The purpose of balancing is to match the longitudinal inertia axis of the body with its axis of rotation, so as to achieve a balance of all body-acting centrifugal forces. As a result, the dynamic stresses on the bearings, as well as the ranges of the produced oscillations, are reduced or limited within specified tolerances.

Our company applies on-site balancing to save time and cost.

Benefits

  • Disassembly of the machine is not required.
  • Fast and accurate detection of unbalancing points.
  • Reduction of machine downtime.
  • Elimination of errors while assembling the machine.
  • Saving the time / cost of transporting and balancing the machine in balancing facilities.
αρχική

ON-SITE BALANCING

Based on a small number of specialized measurements, we determine with great accuracy the point of unbalance of the rotating part. After the measurements are taken, their processing and the placement of the test mass follow. Our company, by having perfect understanding of this process, has manufactured exclusive balancing discs that fit all axle sizes, in order to achieve greater precision and speed in balancing. The manufacturing of these discs is a granted patent of our company.

Our company has patented and manufactured standard balancing discs, which are adapted to all axle sizes. This capability, combined with the experience of our technicians, allows the precise determination of the balancing points of the rotating parts, without the need for disassembly.

The manufacturing of balancing discs is a granted patent of our company.

UNBALANCE TYPES

The simplest case of unbalancing. It occurs when a small mass is added to a thin uniform disc which is symmetric with respect to the axis of rotation

Ζυγοστάθμιση

We can correct this type of unbalance either by adding an equal mass to the diametrically opposite point (180) of the disc. Correction can be applied in one plane and without turning the shaft. In practice, rotating parts with a diameter of 7 to 10 times their thickness are considered to be single level spindles.

Dynamic unbalance in a rotating spindle is the combination of static and couple unbalance. In order to perform balancing, rotating of the spindle and correction in two levels is required.

Ζυγοστάθμιση

It is a rare type. In this case, the masses are positioned 180° around its center of gravity.

Ζυγοστάθμιση

The spindle is statically balanced, that is, there is no eccentricity over its center of gravity.

Ζυγοστάθμιση

However, as the spindle rotates, a change will occur on its inertia axis, and it will not be aligned with its axis of rotation.

To correct the unbalance, we have to turn the spindle and make corrections on two levels.

CAUSES OF UNBALANCE

The causes that can generate uneven distribution of rotating masses in pieces with previously balanced masses can be classified into the following three major categories:

Irregularity in mass distribution can be created during casting (voids, irregular density, etc), welding, heat treatment or cutting process (because of low precision of the machine tools or the creation of pseudo-edges, etc).

Irregularity in mass distribution can be created during casting (voids, irregular density, etc), welding, heat treatment or cutting process (because of low precision of the machine tools or the creation of pseudo-edges, etc).

Unevenly distributed masses can occur during the operation of a rotating mechanical device due to wear, deposits of foreign matter / substances, chemical reaction with the environment, deformation or change of load distribution.

How can we help you?

Contact us at the AdMeS office or submit a inquiry online.

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