基于垄沟仿形的烟草田间转运车底盘设计OA

In view of the characteristics of tobacco-growing areas in Hunan Province,such as being mostly located in hilly regions,having narrow ridge-and-furrow spacing and undulating terrain,as well as the problems of the existing agricultural machinery,including large gaps in supply,insufficient quantity and low transportation efficiency,a tobacco field transporter based on ridge-and-furrow profiling technology was designed and developed.A ridge-and-furrow profiling electric crawler chassis was adopted for this transporter,and theoretical analysis,simulation and field tests were carried out on its key components.Combined with the actual terrain and operational requirements of tobacco fields,the structural form of crawler lifting and the initial design parameters were determined:the lifting stroke was set at 500 mm,and the overall dimensions of the vehicle were designed as 1 200 mm×800 mm×700 mm,so as to ensure that the chassis had good trafficability and could adapt to the operating environments with different ridge-and-furrow height differences.The design of the whole machine and key components was completed.A brushless geared hub motor with a rated power of 500 W was selected,rubber crawlers arranged in an inverted trapezoidal shape were designed,and a jack-type lifting mechanism combined with BST-YF-C electric push rods was adopted,thus realizing a 500 mm lifting stroke and an automatic leveling function.Three-dimensional modeling and finite element analysis were completed by means of SolidWorks.The simulation results showed that the strength,stroke and thrust of key components such as driving wheels and electric push rods all met the design requirements.The research and development of this equipment can provide technical reference for agricultural mechanization operations in hilly and mountainous areas,and help improve the adaptability of agricultural equipment and the level of sustainable industrial development.