| Liquid fertilizer is not only good fertilizer effectiveness, high utilization, Increaseing production significantly,but also less of environmental pollution, ease of production and transportation. Liquid fertilizer is Low of production costs. Production companies can save the production of solid fertilizer granulation and drying processes necessary equipment, reduce maintenance costs of procurement of equipment, and avoid excessive energy consumption. Liquid fertilizer is applied through a liquid fertilizer machine to the field, and thus the development of liquid fertilizer machines is particularly important.I examined a large relevant literature to learn the development trends of domestic liquid fertilizer machine and problems In this study. According to research needs, I started by the key components which is the structure and working principle of liquid fertilizer fertilizing agencies. I designed the converter and the new pipeline system through a combination of methods of theoretical analysis, computer simulation and experimental study, and did the relevant test verification. The study was carried out the following tasks:1) For the fertilizer greater loss (head loss greater) and many other issues of fertilizer pipeline system, I analyze the reasons of the original pipeline system energy losses approach the theoretical analysis laying the theoretical foundations for the redesign of a simple, rational layout, leak less energy piping systems. I made a Kinematic Analysis of the Pipeline transporting fertilizer interface on spraying fertilizer-pin, including Pipeline transporting fertilizer interface’s trail and change of angular displacement on spraying fertilizer-pin, and use ADAMS kinematics simulation analysis, a more intuitive understanding of the motion state of to provide a theoretical basis for solving the winding problem.2) According to the motion gesture of the interface of pipeline transporting fertilizer on spraying fertilizer-pin of fertilize institutions designed a converter which converts the differential gear train mechanism and spatial cam mechanism through a combination of a special way. To solve the problem hose transporting fertilizer wound, using a differential gear train mechanism who has a motion synthesis characteristics. Spatial cam mechanism is used to distribute liquid fertilizer. made a detailed exposition for how converter works.3) In order to solve the problem lose fat hose winding, obtained differential gear train gear ratio by theoretical calculation to avoid lose fat hose winding, and made a kinematics’analysis of fat-way interface of planetary gear, including trail and change of angular displacement of fat-way interface of planetary gear, we can understand the trail and change of angular displacement of fat-way interface of planetary gear more intuitive by kinematics simulation via Pro/E, and compared it with Pipeline transporting fertilizer interface’s trail and change of angular displacement on spraying fertilizer-pin.4) The converter is made of spatial cam mechanism and differential gear train. Under the conjunction of rotating mandrel shaft and stationary spatial cam, it can distribute liquid fertilizer (When spraying fertilizer-pin was under ground, it sprayed. When spraying fertilizer-pin was out of ground, it stoped.), this simplifies the structure of the pipeline system and reduces the energy loss. Established a mathematical model for Cam contour space, and used Visual Basic6.0design a program for spatial cam and checking feasibility of cam mechanism by kinematics simulation through Pro/E.5) Design a new pipeline useing the liquid fertilizer road converter to optimized design pipeline in order to save energy, reduce fertilizer leakage, avoid fertilizer losses, simplify piping purposes. Did a theoretical analysis of the energy loss of the new pipeline and the original pipeline system and validated by experiments. checked converters anti-winding performance and studied new pipeline performance through test methods, mainly studying liquid fertilizer pipline pressure and liquid fertilizer road converter’s rotating speed is how to influence the amount of spraying fertilizer and determine the best fertilizer plan according to the law of summary solution. |
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