A Study Of 2zb-8 Electromagnetic Vibration Minitype Rice Seedling Transplanter

In this thesis, the displacement of vibration system, the excitation force and its frequency are analyzed on the basis of abstract from vibration rice seedling delivery mechanism to system of one-freedom of motion, as well as the vibration rice seedling delivery mechanism, excited by electromagnetic power, is designed, finishing the design of inherent frequency of the mechanism, toughness and dimension of the spring, and accompanying devices such as the electnc control circuit and the rice seedling feeding bun The design of electric control circuit, mainly according to the value and frequency of the excitation force requsted by the system, includes the design of electric circuit of engendering signal in requested range and amplifying power of the signal. The design of rice seedling feeding bim mainly includes the modeling based on theoretical dynamics, the design of the bim according to the model and the model validation.Based on the theoretical analysis, a new style rice seedling transplanter named 2ZB-8 electromagnetic vibration minitype rice seedling transplanter is designed and manufactured, followed by the indoor and field performance experimentsThe experiments were to test the prototype machine and the chief indicatrixes list as follows conformability coefficient of variability of the quantity of transplanted seedling of each line, stability coefficient of variability of total transplanted seedling quantity, percentage of fragmentation of tray block, field uniformity coefficient of variability, eligibility rate of rice seedling erection degree, and eligibility rate of depth of rice into mud The regression analysis, by mathematical statistics method, of conformability coefficient of variability of the quantity of transplanted seedling of each line and the stability coefficient ofvariability of total transplanted seedling quantity, are stressed The regression equation, the optimal result of conformability coefficient of variability of the quantity of transplanted seedling of each line and the stability coefficient of variability of total transplanted seedling quantity, are elaborated.Experiments on the prototype of 2ZB-8 electromagnetic vibration nunltype rice seedling transplanter indicate that the machine is rationally designed, simply structured, easily operated And all of its performance directing signs measure up to preferable level, and can satisfy the requirement of the agriculture technology Theremto, the smallest conformability coefficient of variability of the quantity of transplanted seedling of each line, is 3 91%, the smallest stability coefficient of variability of total transplanted seedling quantity, is 1 28%, the percentage of fragmentation of tray block is 3.6%, the field uniformity coefficient of variability is 5.7%; the eligibility rate of rice seedling erection degree is 87%; the eligibility rate of the depth of seedling into mud is 97% At the same time, the regression analysis indicates that the conformability coefficient of variability of the quantity of transplanted seedling of each line, is remarkably affected by the voltage and height of rice seedling, while the stability coefficient of variability of total transplanted seedling quantity is mainly influenced by the current and height of rice seedling The conformability coefficient of variability of the quantity of transplanted seedling of each line, and the stability coefficient of variability of total transplanted seedling quantity, measure up to the best level, when the voltage is 1 2V, the current is about 115A , the height of rice seedling is 7cm...