About the vibration frequency of cement brick machine

- Aug 03, 2020-

About the vibration frequency of cement brick machine


Regarding the vibration frequency of the cement brick machine, from the perspective of concrete vibration technology, if the frequency of forced vibration is close to the natural frequency of the concrete mixture particles, resonance occurs. At this time, the attenuation is small, and the amplitude can be larger. The aggregate particle size of the block concrete mixture is 3-10mm, and the ideal vibration frequency is 100-125Hz, but it is not up to the cement brick machine, generally 46-47Hz in the United States; individual molding machines in Europe are as high as 66-67Hz .


The main reason for this is that the life of the vibration system is considered. The vibration frequency is too high and the life of the bearing is short. Therefore, generally 44-50Hz can meet the requirements of vibration forming of the block. Vibration frequency conversion has a certain meaning in theory, but from the engineering practice point of view, especially for the vibration forming machine with large vibration power, it is of little significance, because the actual vibration forming time is only 1-2 seconds, in such a short time Different vibration frequencies are applied to the concrete mixture internally, and the compaction effect will not change significantly.