Design And Analysis Of The Key Components Of The Vehicle Chassis In Shallow Hills

The level of agricultural mechanization in shallow hills and hills is low,and the use of artificial flat stubble harvesting methods is inefficient,and cannot meet the needs of the caragana industry.In order to improve the level of agricultural mechanization in shallow mountain and hilly areas,a walking chassis that is fully adapted to the operating environment in shallow mountain and hilly areas is designed to ensure the efficient and stable operation of agricultural equipment and improve the efficiency of machinery.It has a profound impact on improving the mechanization level of agricultural production in shallow mountain and hilly areas..The main research contents of this paper are as follows:Firstly,through the actual demand for planting mode and stubble operation in the selected Caragana korshinskii planting area,the overall structure design goal with a crawler-type walking chassis as the chassis was determined.The Yuchai YCD4N4S-1 10 diesel engine is selected as the power source of the whole machine,and the transmission ratio and torque of the belt drive and the gearbox are calculated accordingly to provide a reference for the selection of the gearbox,and three-dimensional structure of the whole chassis are completed.Model establishment.Secondly,the dynamic simulation of the chassis frame of the shallow mountain and hilly operation vehicle is carried out using the three-dimensional drawing software Solidworks and the multi-body mechanics software RecurDyn.Aiming at the driving performance of the chassis,two operating conditions of plane driving and climbing driving are established for simulation analysis,and the running performance of the chassis is selected and selected as the evaluation index.The result of the analysis is that the running performance is 2.7%;for the chassis For the steering performance of the vehicle,the minimum turning radius obtained by simulation is 1180mm;for the stability of the chassis,after analyzing the stability of the longitudinal slope,the lateral stability of the chassis is simulated.The analysis results show that the dynamic performance of the chassis is good.After that,the static analysis of the frame of the walking chassis was carried out by Ansys Workbench software,and the maximum stress of the frame was 149.18MPa and the maximum deformation was 2.647mm;the modal analysis of the frame in the walking chassis was performed.The analysis results prove that the strength and rigidity of the frame meet the requirements,and resonance will not occur.Finally,based on the statics and modal analysis conclusions of the frame,the topology optimization method is selected to optimize the frame structure,and the lightweight design is realized while improving the performance of the frame.