ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In order to realize the accurate horizontal seeding of sugarcane seeds, a kind of pre-cutting sugarcane transplanter was designed. The influence that the speed of seed metering chain, angle of chain and angle of cane box made on the performance of planting was confirmed by analyzing the movement of the planting device and the simulation study. By using the sugarcane planter test platform, the physical experiments of the first-stage chain speed, the angle of conveyor chain inclination and the cane box inclination angle of planting device were carried out. The experiment results showed that the angle of chain had a very significant impact on the performance of planter. The speed of chain shaft and angle of box had no significant effect on the performance of planter. The order of primary and secondary factors affecting performance was the angle of conveyor chain, rotation speed of chain shaft, and inclination angle of cane box. There was no interaction between these factors. The optimal value of chain angle was 55°, the best value of chain shaft speed was 9.16r/min, the best inclination angle of cane box was 45°. In performance verification experiments, missing seed rate was 5%, replanting rate was 3.2% and pass rate was 92.6%. The reseed phenomenon during the planting can be effectively avoided. The seed consumption can be reduced during the planting process, and the missing seed phenomenon can also be avoided during the planting process. The qualified rate of seed metering direction was 93.37%, and the qualified rate of seed metering plant spacing was 90.33%. The spacing of planting was between 33cm and 49.5cm (a reasonable range), and the precise horizontal planting of double-buds section sugarcane can be realized.