Mechanism Design And Steering Control Of Four-wheel Steering Tobacco Vehicle

Tobacco planting was based on the land and farmers of the basic factors of production industry,a part of the agriculture.China tobacco planting industry and national economy,especially the development of agricultural economy is closely related.For a long time,however,most of the tobacco planting and transplanting in our country have used the traditional manual,ridging,applying fertilizer,water,cover film,spraying at various stages,the labor intensity is very high,but the production efficiency is not high.There has been a corresponding to the current domestic small mechanical,but due to the artificial cultivation of ridge distance is differ,tobacco machines sail in normal was very hard and their adaptability is not strong.To solve these problems,puts forward and determine tobacco vehicle steering control scheme,analysis of optimization control scheme.Design the vehicle walking,steering,and variable wheel-base hydraulic system.The main contents include:1.Gives the overall structure of the tobacco homework car,determine the working truck driver mode,transmission mode,independent steering mechanism design,variable pitch mechanism design.Using Solid Works 3 d software of tobacco car model as a whole.2.Design steering gear and rack,and the main parts for checking.Using ANSYS stress state of gear and rack is working to make simulation.3.Tobacco is given working truck hydraulic system design scheme,implementation work walk,turn,the function of the variable pitch,the various hydraulic components selection calculation of hydraulic system.4.According to normal four-wheel steering driving habits,combined with the local characteristics,establish proper steering equation,compile tobacco working under various states to PLC control program and verify the foundation program.