Spring Reduction in Designing Shake-outs

Posted in: , on 22. Jan. 2009 - 16:32

hi every one,

we have done the structure of vibrator (shake out used in a foundry to get the casting from the flasks) its screen is 2m X 2m with 20 springs inside diameter 80 mm and outside diameter is 125 mm(5 in each corner) this according to an old drawing. the weight of the whole structure is 320 kg, the motor is 15 hp , 1400 rpm and they put weights but the vibration is weak

now they cancelling 8 of the springs

my question is what the effect of reducing the number of springs? and is this reduction is ok

thanks ■

enas
Metal Casting
Basic Metalls
Smelters & Foundries
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Less Springs Vs More Springs

Posted on 22. Jan. 2009 - 11:52

Less springs = less rigid, more action.

Conversely, if we are experiencing too much SHOCK LOAD dumping onto a vibratory shakeout......we like to add a couple of springs as necessary.


Quote Originally Posted by enaseshView Post
hi every one,

we have done the structure of vibrator (shake out used in a foundry to get the casting from the flasks) its screen is 2m X 2m with 20 springs inside diameter 80 mm and outside diameter is 125 mm(5 in each corner) this according to an old drawing. the weight of the whole structure is 320 kg, the motor is 15 hp , 1400 rpm and they put weights but the vibration is weak

now they cancelling 8 of the springs

my question is what the effect of reducing the number of springs? and is this reduction is ok

thanks

■

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