半喂入花生摘果装置优化设计与试验

在自行设计的半喂入花生摘果试验台上对半喂入花生摘果装置结构参数和运动参数进行优化设计与试验.在摘果过程运动分析的基础上,确定花生果系在摘果段的理想位置状态和参数关系,使花生果系由底向上、渐进有序穿过最佳摘果区,摘果强度均匀.分析了摘果频率和摘果强度的影响因素及对作业性能的影响.采用摘果机理分析和试验验证相结合的方法,确定采用后倾弧形板摘果叶片,单辊配置6个叶片.通过多指标响应面综合试验,优化确定摘果装置的结构和作业参数组合为:摘果辊长度1 200 mm、链辊夹角7.2°、辊筒直径152.5 mm、重叠距离5 mm、摘果辊转速371 r/min和夹持输送速度1.025 m/s.

Optimized Design and Experiment on Semi-feeding Peanut Picking Device

A semi-feeding peanut picking test-bed was developed to carry out the studies on optimized design and experiment on the structural and motion parameters of semi-feeding peanut picking device. Based on the motion analysis of picking process, ideal position state and parameter relationship of pods cluster during the picking section were determined to ensure that all the pods cluster could pass through the best picking areas by bottom-up and gradual-orderly mode. Influencing factors of picking frequency and strength as well as the influence on the picking performance were analyzed. On the basis of picking mechanism analysis and the experimental verification, the picking roller employed six backward-curved blades. After the multi-criteria response surface experiments, the optimized combination of structural and operational parameters were obtained as follows: the roller length was 1.200mm, the included angle between chain and roller was 7.2°, the roller diameter was 152.5mm, roller overlap distance was 5mm, roller rotate speed was 371r/min, chain conveying speed was 1.025m/s.