Method for Calculating Cutting Force and Cutting Power in Rotary Guillotine Cutter

In an attempt to avoid the limitations in main motor selection with empirical method or analogism method,a theoretical model for calculating the cutting force and cutting power in rotary guillotine cutter was established on the basis of load analysis and the operating status. By selecting appropriate operating status coefficient,calculating major cutting force,cutting power,and cutting torque of knife drum,calculating the actual output torque of cutting motor according to transmission ratio i,and calculating the actual output power of cutting motor according to transmission efficiencyη,finally the motor was determined. The theoretical model was applied in the design and development of NQ series prototype cutters for main cutting motor selection,the selected motor satisfied the requirements of various cutting conditions. The model theoretically provides a method for calculating cutting force and power in cutter design as a basis for cutting motor selection.