Study On The Drilling And Subsoiling Combine Machine For No-till Maize

Aiming at the problems which will appear when seeding and subsoiling are completed solely in two crops a year region of northern China, this paper analyses the combine operation's feasibility of seeding and subsoiling, and a new drilling and subsoiling combine machine for no-tillage maize, which can be used in two crops a year region of northern China, was developed. It can once complete all field works of pushing aside the stalk, ditching, fertilizing, seeding, covering the soil, squashing the soil and subsoiling, solving some problems such as more tasks, compacting the soil, increment of power consumption, speeding the growth of no-tillage maize.Through studying on basic theory of subsoiling, the paper advances design scheme of subsoiling structure and introduces other key parts of the combine machine. This paper also analyzes the combine machine's overall bearing force and power consumption. Analysis results show that all the key parts' structures are reasonable, the overall bearing force and power distribution of the machine meet the design need.A series of contrastive tests between combine and sole operation of drilling and subsoiling are set up. Field tests make out that the combine operation of drilling and subsoiling is feasible technically, through using different loosen soil shovels, the combine machine can meet varied demands of subsoiling.