High rotation speed gear box for anisotropic parallel twin-screw extruding machine

Abstract

A high rotation speed gear box for an anisotropic parallel twin-screw extruding machine comprises an input shaft, an output shaft I, an upper drive shaft I, an upper drive shaft II, a lower drive shaft I, a lower drive shaft II, a middle drive shaft and an output shaft II, wherein an input gear of the input shaft is meshed with a gear of the output shaft I and is meshed with a gear of the middle drive shaft simultaneously, the middle drive shaft is meshed with a gear of the upper drive shaft II and a gear of the lower drive shaft II through a gear II simultaneously, the gear of the upper drive shaft II and the gear of the lower drive shaft II are respectively meshed with the gear of the upper drive shaft I and the gear of the lower drive shaft I, the gear of the upper drive shaft I and the gear of the lower drive shaft I are meshed with the gear of the output shaft II simultaneously, a thrust bearing is arranged on the output shaft I, and a series thrust bearing is arranged on the output shaft II. The gear box is characterized in that the output rotation speed is high, and the output torque is big, and drives upward and downward to counteract the radial force of the output shaft, thereby enabling the bearing of the output shaft to be located in the best forced state and prolonging the service life of the output shaft and the bearing to the maximum.

Description

technical field [0001] The invention relates to a gear box, in particular to a high-speed gear box used for parallel twin-screw extruders. Background technique [0002] At present, twin-screw extruders have been widely used in the fields of plastics and rubber, especially in the field of blending and modification processing, which can achieve good tensile deformation of materials, so that the mixing of materials Excellent dispersion effect. In addition to the processing of general engineering plastics, counter-rotating parallel twin-screw extruders have also been effectively applied in the processing of PVC large-diameter pipes, PVC sheets, high-speed profile extrusion, and wood-plastic extrusion. [0003] For a long time, "high torque, high speed, and high output", which are the main performance indicators of extrusion molding equipment, have always been the main direction of extrusion molding machine development. High output-price ratio is not only the most concerned by e...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-speed high-torque gear box suitable for parallel twin-screw extruders in order to reduce the force of the gear with the weakest force state by one time. The weak link bearing has the best stress state, which solves the problem that the service life of gears and bearings is reduced and cannot meet the use requirements after the screw torque and speed of the parallel twin-screw extruder are increased.

Images