Design Of Corn Fertilize Device With Vertical Dropping Under Whole Plastic-film On Double Ridges

Gansu province is at the arid and semi-arid area, there is less rain here and unstable, is drought occurred more frequently than the high region in China. As of2003, Gansu agricultural and technical workers proposed a major agricultural new technology through a large number of research after more than ten years. The technology is in the earth’s surface size double ridges and rainwater harvesting groove formation, then use the size of plastic film mulching and ridges and furrows, planting crops in the furrow planting cultivation techniques.At present, the whole can adapt cover the whole film double furrow sowing fertilization, mainly for portable corn fertilizer gun.Due to portable gun corn fertilizer operations labor-intensive, low productivity, can not meet the development requirements of the whole film covering double furrow sowing technology. Therefore,the development of a film covering the whole double furrow sowing technology matched Fertiliser has certain practical significance.Through the whole film double furrow sowing corn fertilization mastery agronomic requirements, analyze the shortcomings of existing works inline fertilizing machines and existing inline fertilizing machine to improve the design of existing designs a new institutions to meet the agricultural requirements, to make up for deficiencies existing in-line fertilizing machine.Existing equipment is via cam- crank link compensation mechanism to control the line into the hole movement, cam- crank-link into the hole using a cam to achieve equipment forward in the direction of displacement compensation, and by the movement of the crank rod, drive into the hole to complete vertical buried and unearthed action.To avoid fertilizing machine existing in-line defect Cam: Cam higher processing costs; the cam profile has a concave section, machinery work, putting concave cam segment produces instant impact, bent push rod or card death is not a smooth transition, leading to compensation backward, not with the crank- synchronization job linkage, a hole can not be completed and unearthed buried vertical movements;not adapt to different spacing. Design of a new body to replace the cam. The key role of cam machines running plays for Slider provides velocity loop to compensate for the forward speed machines, therefore, designed a nearly constant velocity mechanism used to replace the cam mechanism, and analyzed nearly constant agency alternative feasibility cam mechanism.Sine mechanism and rotating guide rod mechanism through big gear and small gear together, big gear and small gear respectively installed on the rack, gear ratio is 2,so rotating guide rod mechanism sprocket angular velocity in two periods of three times the minimum can be sine mechanism shift lever speed in three times in a cycle peak level gradually.Let rotating guide rod mechanism sprocket angular velocity in two cycle of three times the minimum value of the corresponding sine mechanism in the shift lever speed in a cycle of three peaks, reasonably determine the corresponding installation position, the speed of the shift lever will appear two nearly uniform motion.Nearly constant speed mechanism are analyzed in theory, to determine the factors influencing the speed of a rotating guide bar mechanism in the length of the active rod, active rod and the guide rod rotation center distance, the crank length and active lever of sine angular velocity.Trial and error in the computer, the factors are preliminary values, which laid a foundation for the subsequent optimization.Use Adams / View of the design parameters to optimize nearly constant agencies,obtain the optimal solution. The establishment of a three-dimensional model of the machine in Solid Works. The whole three-dimensional model to simplify the use of Solid Works Motion motion simulation, trajectory into the hole, meet the design requirements. Depending on the area in Gansu Province on fertilization spacing requirements, proposed to adjust the spacing options for resolving the problem of fertilization adjustable spacing.