Characteristic parameters of calender
2. Power calculation:Power consumption is also an important parameter in the design of calender, and it is difficult to obtain it accurately by theoretical formula. Several empirical formulas are briefly described here, which are approximately calculated:1) the power calculation of a single motor driveA, according to roller linear speed calculationN, =a, L, VFormula a -- Calculation factorL - roller work part lengthV - calendering speedB. is calculated by the number of rollersN=K, L, nFormula K -- Calculation factorL - roller work part lengthN - number of rollers.The common disadvantage of the above two methods is that they do not consider the nature of the processed rubber material and the processing method, and the influence of the roller diameter on the power, and their influence on the power consumption is very large. It can be seen that the above two formulas are one-sided.C. analog computingBy using the known machine characteristics and power consumption, the calculation coefficients a and K are calculated, and the power of the calender is designed by using the upper model.2) the power calculation of multiple motors in transmissionBecause each roller has different positions and process uses, the speed of the rolling line is different, and the power consumed by each roller is different in the process of rolling. Under normal conditions, the feed roller consumes much more power than the roll.A, when rolling, the power consumption of two rollers is proportional to the roller linear speedIf the linear speed of two rollers is V1, V2, and the power is N1 and N2, respectively:N1/N2==V1/V2The power consumed by B and glue is only 6% of the total powerN =0.06N total NN sticking - rubber roller power,N total effective total power,ETA - total transmission efficiency.According to the above two points, you can calculate the power of each roller.
