Design And Test Analysis Of Maize Precision Fertilization Mechanism Of Acupoint

Maize hole fertilization can increase the utilization rate of fertilizer, decrease the residue on soil pollution, improve the accuracy of fertilization and increase production, promote the economic benefits significantly increased. At present the common fertilization machine there are two main forms of the ditch broadcast equipment, fixed distance of liquid hole fertilization machine, low rate of fertilizer applicator equipment which use ditch, the distance of liquid fertilizer applicator and the pricking hole spacing adjustment difficulties, low accuracy, complicated structure, high cost, easy to be influenced by the speed of the. In order to realize the high precision maize fertilization, and energy, to improve the traditional methods of fertilization, reduce unnecessary investment and pollution, can be widely used in the production of. According to the agronomic practices in Northeast intertillage fertilizing, design with reference to agricultural and agronomic, the hole fertilization machine core control mechanism of mechanism creative design, parameter analysis, three-dimensional modeling and simulation analysis and experimental data processing and analysis, design and developed the Fu Hetian demand maize Precise Fertilization hole.In view of the current fertilization technology shortcomings and there exists a blank, this mechanism is assembled on the machine frame by seedling needle, micro force sensor amplification clutch, clutch release system and institution. The agency through the sensor on the seedlings of maize seedling root stem near the probe after activation, micro force amplifying device, triggering the clutch, the fertilizing device to complete a single fertilization, clutch from the device to complete the out of work, so as to complete a precise fertilization, fertilization improved accuracy, and increase the utilization rate of fertilizer in large part to realize the automatic accurate point, fertilization. The mechanism is composed of a hydraulic output shaft to the active force, to avoid the use of high power output power.Motion analysis and touch touch recognition device for mechanical calculation, designed by seedling mechanism and micro force amplifying device, and the corn stalk bending stress calculation, test the maximum limit, now a breakthrough technology dependent and image and optical processing limitations, to effectively respond to and weather environment effect, fundamentally improve the adaptability of the identification device.For the fixed distance fertilization can not be adjusted by a clutch device and disadvantages, from the agency completed the basic design of automatic activation and detachment, can realize the automatic disengagement and engagement, break the existing distance sliding fertilization the accumulation of pricking hole series position problem, improve the mechanism of feasibility, to create a new space for the next experiment and research. In the solid state hole fertilization technology now designed rotating sleeve pricking hole fertilization, can avoid the blockage phenomenon of soil fertilizer, fertilizer transmission mechanism analysis of the stress and deformation of the disadvantaged, and improve direction, and then analyzes the reasons and influencing factors, which lays a foundation for the further improvement and optimization.Simulation of the mechanism movement in the soil layer between the trajectories of equipment operation, in the soil of the velocity, acceleration, force and time efficiency and other parameters, the design of motion, puts forward the design problems, and the defects, causes are found, the occurrence of this phenomenon on the basis of the theory, and analysis of the working mechanism of fertilizing device, design ideas and design improvement and optimization.Experimental study of single factor and multi factors of the main parameters of the soil bin test bench, to find the optimal parameters, the three regression test method five level orthogonal rotation combination for two times, the speed for 1.25m/s in the car, the power output shaft speed is 16.5r/min, seedling height by needle in 5mm under the condition of 6mm on hole fertilization experiment, the optimum parameters combination of factors in the optimum range. Results showed that: point line fitting is 66.2%, seedling injury rate was 10%, the optimal performance index range, the optimization results can be trusted, as the hole fertilization mechanism to further optimize the test reference.