Design And Field Experiment On Two-Row Opposite Vibrating Subsoiler

Realizing mechanization of farming is of great significance for the development ofmodern agriculture, subsoiler is an important machine of conservation tillage.But,thereare some problems with general mechanical subsoiler such as big traction resistance,and poor tillage effect.To solve those problems,on the basis of studying the deeploosemechanism and the vibrating deeploose mechanism, two-row opposite vibratingsubsoiler is developed.Two-row opposite vibrating subsoiler consists chiefly of the rack,thesuspensions,the, steering box, the couplings, drive shaft, six-bar linkagesmechanism,front row subsoiling shovels,rear subsoiling shovels,the depth controlwheels etc..This subsoiler has reasonable and compact structure,unique design ofmechanism. Its greatest feature is that shovels is divided into before and rear rows.Through the six-bar linkages mechanism,all of the shovels do vibration motion whilethey do uniform motion with the whole machine. In addition,the front and the rear rowshovels vibrates always in the opposite direction.That is opposite vibration.Field experiments are conducted to test the prototype of the subsoiler’s tillageperformance. Through single factor test, subsoiler traction resistance was tested undervaried conditions, such as when the shovels vibrated or not, and was in different tillagedepth, forward speed and shovel width. The test results showed that: other factorsremain unchanged, with the increases of tillage depth, the traction resistance has anincreasing tendency; In the case of tillage depth unchanged,with the increase of forwardspeed, traction resistance has an increasing trend; with the shovel width increasestraction resistance has a tendency to increase; when the two rows of shovels oppositevibrates, the traction resistance was significantly smaller than the one of non-vibrating.The drag reduction percentage is19.5%Loosening effect comparison experiments between vibrating operation andnon-vibrating operation were tested. Results indicated that: the soil bulk density aftervibrating operation is smaller than the one after non-vibrating operation. The area ofloose soil after vibrating operation is bigger than the one after non-vibrating operation.Vibrating subsoiling can effect greater range of soil, and the effect is better.