关键词: 上肥撒施一体机, 关键部件, 可变调节, 抛撒试验

Abstract: To address the problems of inability to feed fertilizer independently, poor fertilizer spreading effect, long transfer operation time, and low level of automation, this paper designed an intelligent selfpropelled fertilizer applicator. By designing key components for fertilizer feeding, transportation, and spreading, the integration of feeding, transportation, and spreading was realized. The machine could parametrically set the chain plate conveying speed, fertilizer gate opening, vertical auger rotation speed, and throwing mechanism shield angle to realize variable adjustment of the spreading amount and width. The spreading width ranges from 4-7.5 m, with an effective fertilizer spreading rate of 1000-4000 kg/hm2. In a scattering test conducted with a field fertilization rate of 3000 kg/hm2 and a width of 7 m, the vertical variation coefficient of fertilization was about 15%, and the horizontal variation coefficient was about 30%. These results demonstrate that the fertilizer applicator meets the requirements of field fertilization.

Key words: integrated machine, key components, variable adjustment, fertilizer application test