A theoretical study on hybrid ultra-high molecular weight polyethylene for use in pin-shaped steel backing gear teeth of a cycloid drive

摘要

To improve performances of cycloid drive in a sluice hoisting equipment, pin-shaped steel backinggear teeth composite structure using ultra-high molecular weight polyethylene was designed.Based on the viscoelasticity of ultra-high molecular weight polyethylene material, geometricmodels and mechanical models of the hybrid polymer pin tooth were built up in this paper.Meanwhile, the model of traditional steel pin tooth was built up for comparison. Through thecomparative analysis of the stress distribution and carrying capacity by using the simulationmodule of Inventor, it was proved that the composite structure polymer pin teeth can significantlyreduce the contact stress and provide superior mechanical properties to the traditional cycloiddrive, being an effective method to optimise the low-speed overloaded cycloid drive.