The key of extrusion process of single screw extruder gearbox

Release time：2001-11-22 下午 09:46:27    Viewed：

When the single-screw extruder gearbox reduces the motor speed to the screw speed, the gear force and the pressure thrust of the screw end can be generated, and the twisting and bending force can be generated on the driving shaft. The special speed reducer for extruder is designed and specified according to industry standard.

In addition to the above, the twin screw gearbox also distributes torque to two axes, proportional to the relative rotation resistance of each screw. In addition, the tight spacing between the two axes limits the allowable torque that can be passed to the screw, unlike the single screw extruder gearbox. Many gear design schemes are used to compensate for this limitation. The emphasis of the extrusion process is on power requirements, but the design and limitation of the gearbox and other driving parts is the torque or resistance. The torque is generated by the gear meshing transfer torque to the rotary shaft and then through the supporting bearing into the shell's force. The bearings are resistant to these forces while keeping the shafts in the gearbox tightly aligned.

When the clockbox assembly is located in the center of the transmission housing and the screw is located at the center of the drive shaft, the alignment of the extruder screw in the gearbox begins in the gearbox. If the screw is rigidly connected to the transmission shaft, the gearbox bearing on the output shaft provides a cantilever support for the screw. Any bending or distortion caused by the force acting on the cylinder and the screw is transmitted back to the shaft and bearing.