Optimal Design Of Gearbox Housing Of Loader Based On ANSYS Workbench

As one of the key transmission system for wheel loader spare parts,gearbox has an important role such as bearing,connecting and sealing,its reliability and the rationality of the structure affect the powertrain's performance and efficiency.Gearbox housing Light weight is the production and development of enterprise case demands,at the same time,the harsh operating environment of Loader determines the stiffness and strength of gear case should be strong enough,so the gearbox housing reasonable design is very important.On the premise of exploring the mechanical condition and its stiffness and strength,to reduce the total weight of the box and improve the reliability of dangerous parts for hazardous locations as its main objective,on the structure of topology and size of multi-objective optimization design,optimized box plays a certain improved role on transmission and the wheel loader efficiency.This paper used the solid modeling,finite element analysis and software combination optimized method,based on the analysis of loader gearbox work status and sources of stress,calculated the static of gearbox housing first.Followed by using Pro/Engineer modeling software to build the three-dimensional model and establish Pro/Engineer with collaborative simulation platform in physics—ANSYS Workbench for seamless connectivity,model and force calculation imported to ANSYS Workbench for Finite Element Analysis.Then according to Finite Element Analysis results,in optimization module of ANSYS Workbench proceeded the topology optimization of gearbox,for providing pursuant to its overall structure optimization and heavy reduction.Finally,on the basis of the overall optimization,further based on the experimental design and multi-objective optimization principle for partial size optimization,reduced the maximum stress of the main load-bearing part,the loader gearbox housing ultimately achieved the dual purpose of weight reduction and improving the reliability of the main stress parts.The optimized body weight lost 12.3%,the maximum equivalent stress decreased 19.4%and 30%,research results for enterprise product development and design,manufacturing cost saving has practical guiding significance,its research process can also be used as the basis of loader gearbox housing dynamic force analysis,residual life prediction and remanufacturing evaluation research gist.