Stress Analysis And Design On Ahigh Torque,Deep Groove Intermeshing Co-Rotating Twin Screw

The intermeshing co-rotating twin screw extruder (ICTSE) has been more widely used in the plastics processing and modification.As an important core equipment of plastic extrusion granulation, the intermeshing co-rotating twin extruder screw extruder develops towards the high-output, high-efficiency, large-scale and low-power direction. But the above features of twin-screw extruder design was restricted by screw shaft center distance,screw element intermeshing and transmission system conditions. This subject aims to design high torque, high free volume of intermeshing co-rotating twin-screw extruder screw, it is very significant to improve the design and engineering apply level of intermeshing co-rotating twin-screw extruder screw.The extrusion system was the research object in this subject. In recent years using numerical calculation method to study the extruder has made some achievements. The force of shafts and the screws bearing in working condition,the stress and the deformation situation is analyzed by means of the numerical calculation with the help of ANSYS software. First,giving the of analysis and comparision of involute spline shaft and regular hexagon shaft’s carrying capacity, then analyzing the stress distribution of screw with different screw lead, groove depth, inner hole-diameter and intermeshing ratio. In the end under affordable maximum load range in the certain centerdistance,finding reasonable cooperate form between shaft and screw element, reasonable design parameters of the shaft diameter, screw element inner hole-diameter and the screw lead. It provides the basis of the design of high torque, high free volume of intermeshing co-rotating twin-screw extruder screwThe subject provides the improving of the current extruder,the feasibility of high torque and deep groove extruder type.