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Performance analysis and test of a maize inter-row self-propelled thermal fogger chassis

international Journal of Agricultural and Biological Engineering 2018年第5期11卷 100-107页

作者： Liqing Chen Pinpin Wang Peng Zhang Quan Zheng Jin He Qingjie Wang College of Engineering Anhui Agricultural UniversityHefei 230036China Anhui Intelligent Agricultural Machinery Equipment Engineering Laboratory Hefei 230036China College of Engineering China Agricultural UniversityBeijing 100083China

In view of the difficulties in weeding and plant protection in the middle and late period of maize planting,this paper proposed a self-propelled thermal fogger *** to the theoretical calculation and agronomic requirements for maize planting,the structure and working principles of the self-propelled thermal fogger chassis were *** this basis,the multi-body dynamics model of chassis structure was established,and the chassis traction,steering and obstacle surmounting performances were also *** the rationality and the feasibility of the design were verified through the furrow running test and test equipped with thermal *** results showed that,the traction performance improves with the decrease of soil deformation index and increase of cohesion,and when track pre-tensioning force was about 1000 N,the machine had a good traction performance;with the decrease of the soil deformation index and the increase of cohesive force,the stability of the single side brake turn of the chassis becomes better;on the contrary,with the increase of the tightness of the crawler,the steering radius turns smaller and the steering stability becomes *** heavy clay,with the pre-tensioning of 1000 N,the machine has better steering stability and smaller turning *** obstacle-surmounting simulation result shows that on sandy soil road,the maximum climbing angle for the chassis is 42°,the height of vertical obstacle crossing is 170 mm and the trench width is 440 *** study provides a reference for the design of plant protection machinery in the middle and late stages of maize planting.

关键词： maize inter-rows intelligent chassis traction performance steering performance obstacle surmounting performance

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