Design On Sugarcane Field Transporter With Unloading Conveyor Arm

China was a big sugarcane planting country,and most of them still relied on artificial harvesting.It had high labor intensity,high production cost and poor economic benefit.The yield of sugarcane machine was less than 3%.Chopper harvesting was the main technology of sugarcane harvester in our country at present.When harvester working,it needed to work synchronously with field transporter.At present,most sugarcane field transporter used in our country were wheel type and cylinder lifting dump transporter.When they were used in hilly and mountainous sugarcane areas,there were some problems such as poor stability in lifting and unloading.In view of above problems.In this paper,a tracked field transporter with unloading arm was designed,and its performance was calculated and simulated.The main contents and conclusions were as follows:(1)Design on field transporter.According to the characteristics of sugarcane planting and harvesting in China,the overall layout of sugarcane field transporter was determined.The overall design on sugarcane field transporter and the design on tracked chassis,carriage,conveyor,hydraulic system and other components were completed.(2)Performance calculation and analysis of the whole vehicle.The longitudinal and transverse stability of sugarcane field transporter was analyzed by calculating the ultimate tilt angle and the maximum slip angle.The results showed that: The ultimate tilt angle for longitudinal climbing was 36.5°,The ultimate tilt angle of vertical downhill slope was38°,The maximum slip angle were 31°;The ultimate tilt angle was 34° when traveling under full lateral load,When traveling horizontally in no-load condition,the ultimate tilt angle was 28.4°,Under full load condition,the ultimate tilt angle was 24.8°.The maximum slip angles were 26.5°.The obstacle-crossing performance of the vehicle was analyzed by analyzing the height of the vehicle crossing the vertical obstacle and the width of the horizontal trench.The sugarcane field transporter can cross vertical barrier height 160 mm and horizontal trench width 830 mm.The steering performance of the vehicle was analyzed by analyzing the turning diameter and steering resistance moment of the single side brakeof the vehicle.The turning diameter of one side brake was 1200 mm,and the steering resistance moment was 2730 N·m.(3)Vehicle performance simulation and analysis.The multi-body dynamics simulation software Recur Dyn was used to simulate the working conditions of sugarcane field transporter on clay and sandy soil pavement,such as climbed,descended,steered and obstacle crossed.The rationality of prototype design was verified,and the stability of field transporter under different working conditions on two kinds of pavement was analyzed.The results showed that: The steering stability of clay pavement was better than that of sandy soil pavement,and the stability of sandy soil pavement was better than that of clay pavement when it climbed and descended and crossed obstacles.The difference between simulation results and theoretical results of sugarcane field transporter in vertical climbed,downhill,steered,vertical obstacle crossed and horizontal obstacle crossed on sandy soil pavement was less than 20%,which was acceptable in engineering application.Therefore,the simulation value was basically consistent with the theoretical value.When field transporter crossed the horizontal trench on the clay pavement,the difference between the simulation value and the theoretical value was larger,which was less than 31%.The main reason was that the theoretical value was obtained without considered the corner collapse.When the sugarcane field transporter crossed the barrier on the clay pavement,the corner collapse of the trench was more serious,which maked the whole transporter pitch larger,so the difference between the simulation value and the theoretical calculation value was larger.