小型手扶自走式棉田培土机的设计与试验

针对棉田中耕培土机耕深不稳定、培土效果差、易损伤棉株等问题,结合农艺要求,设计了小型手扶自走式棉田培土机。通过理论计算与研究确定了整机动力等技术参数,同时对旋耕培土刀和行走轮进行了设计和改进,并运用有限元方法对培土刀和刀辊进行了静力学分析,确定了培土刀参数,提高了机器的碎土和抛土能力,其培土的深度和宽度均可调节,减少了对棉株的损害。试验表明:该机满足棉花培土作业的农艺要求,实现了棉田培土的机械化作业。

Design and Experiment of Small Self-propelled Cotton Field Hillers

Aiming at the problems of hillers such as instability of tilling deep,poor ridging effect and easy damage of cotton plant,the small self-propelled cotton field hillers was designed combination with agronomic requirements.Through the theoretical calculation and research,the technical parameters of the complete machine are determined.At the same time,the rotary blade and walking wheel were designed and improved.The static analysis of the rotary blade and the rotary roller is carried out by using the finite element method,and rotary blade parameters were determined.To improve the soil crushing and soil throwing capacity of the machine,the depth and width of soil ridge can be adjusted,reducing the damage to the cotton plant.The test shows that the machine to meet the agronomic requirements of cotton field operations,to achieve mechanized cotton field ridging operations.