2016年1月14日星期四

Small part with large effect : Vibrating Screen damper

Do you know Circular Vibrating Screen damper?it’s a device which limits vibrating screen horizontal vibration.
May be you feel puzzled,is there any vibration in the horizontal direction?The answer is no In theory, but the practice has proved that it exists, the reasons are as follows:
(1) The distribution of material on the screen mesh is uneven.
If the material is uneven,it can lead to the uneven force for screen box ,thus vibrating error appears.
(2) Installation error.
The Circular Vibrating Screen needs horizontal installation,but in the process of installation, the error will inevitably occur, resulting in a height of four supports occur small deviation, but the small deviation will be amplified by the vibration exciter, thus it will result in greater vibration deviation.
(3) the stress error of the spring.

Vibrating Screen damper drawing
 
As we all know, it is only a reference value to measure the standard of a vibrating spring,if the stress in the same reference range, it will be defined as the same model of vibration spring, therefore, it is hard to avoid the stress error.
There is a great harm to the vibrating screen box horizontal vibration If you don’t solve in time, the side wall of the screen box will be worn, and the worse result is that the side wall will be worn out, which will affect the normal operation of the circular vibrating screen.
So how to avoid the occurrence of such an accident? Here we will introduce the key part of the circular vibrating screen - damper.
As shown in figure, the structure of the damper is composed of 6 parts:adjusting bolt, flange, spring base, spring, rubber base and rubber.
When the screen box appears the horizontal vibration error, the internal spring of damper will occurs a reverse thrust to the sieve box, thus it will restrict the screen box in the horizontal movement to avoid the horizontal deviation.

 circular vibrating screen damper

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