Research And Design Of The Buckwheat Debranning Equipment

Buckwheat,being one of Chinese traditional export products,with its unique shape characteristics,has inevitably lead to a large number of broken rice in milling process.In order to analyse what effect the broken buckwheat in the contact process of buckwheat in the milling equipment. We have to analyse the stress of buckwheat particle in the contact process.Based on the sand roller structure size design and its working parameters,this paper uses the Solidworks to establish the model of sand roller and buckwheat grain,combined with dynamic simulation software ADAMS,establish the virtual prototype of the contact between a side of a buckwheat particle and the high speed rotation of the sand roller for contact simulation,under different rotation speed of the sand roller and different coefficient of contact friction, the simulation data show that the angle between the resultant force of the buckwheat particle and the contact section could be changed by appropriately changing of the sand roller’s rotate speed and the contact friction coefficient in the process of the contact.In order to analyse the effect between buckwheat granulometric stress distribution and the angle when the buckwheat particle contact with the sand roller,this paper uses ANSYS Workbench conduct the static analysis of buckwheat particle. The contact side is applied size 30 N, respectively for the force of 0degrees and 30 degrees,45 degrees,60 degrees,90 degrees.By comparing and observation of the shear stress nephogram.It can be concluded that the smaller the angle is,the cortex can rupture faster and the particle internal damage smaller,it is advantageous to increase the whitening rate and reduce the rate of broken buckwheat.