Primary Structure Study On The Vertical Snapping Roller Of Corn Combine Harvester For Both Ears And Stalks

To the existing problem which in view of our country corn harvest machinery. To realize machinery harvest corn ears simultaneously harvest stalks. To solve the problem that straw stalk material can not be able to use effectively,wastes seriously and in short of forge. To promote the development of agriculture area animal husbandry. To enhance the overall level of our country corn harvest mechanization. The new corn harvest machine has the independent intellectual property rights. It has following advantages: broad application,high efficiency,small loses,low price,easy to operate,specially the realization of the function of both ears and stalks harvest.During the research of machine and tools ,in order to find the best combination and work effect of each working part, According to the way of vertical roller corn harvest working, the contrast experiment of the shortages and conceivability of gathering, picking ears, the straw stalk cuts to pieces and some main equipments was carried out by corn harvest machine test platform in the room, to finding out the working equipments the work mechanism and the best parameter combination, and finding the realation between the structure pattern,the work parameter and ear of loss .The aim of the paper is to illustrate the test equipment,the condition,the method and so on, focusing on orthogonal analysis, mathematics modelling, mechanics computation, optimized design, computer programming, has carried on comprehensive, the careful analysis and the fundamental research to the test result, thus present the new working part structure and this kind of structural design instruction principle and the method. The main research results of the paper are as following:Redesign the structure of the shortages and conceivability of gathering equipment:1. To separating the transmission both the shortages and conceivability of gathering equipment and snapping roller,and the disposition in front of snapping roller. It eliminated the straw stalk to the chain link attachment pulling force,solved the vertical roller type to fall the chain stopped chain question since long ago,thus enhanced the chain link service life.2. Useing stretches spring to replace contracting spring achievement to clamp the strength as originate, is the innovation in the vertical roller type disposition.3 Proposed the speed of the shortages and conceivability of gathering equipment should be equal to or be bigger than under the machine working speed for the first time, the basis on snapping roller operating performance in the highest work speed, when the harvest high production corn which under the optimum condition best parameter of movement, the unit designs ears does not occur to involves possibly reduces the theory which inthe chain link speed situation designs, and has produced the speedevaluation formula.Confirmed the feasibility of螺旋勾爪roller to apply to vertical roller structure ,and obtained a better effect in the experiment. Carried on dynamics analysis and the fundamental research on theory of the勾爪辊picking ears. Optimizes the design and the approximate formula according to the computer calculates ,the most superior roller length is 300mm.Finding out the straw stalk cut to pieces the harvest processing unit reasonable structure through the contrast experiment and analyze ---Curved surface straight edge knife. Established the plate barrel type structure dynamic equation successfully, building the foundation for deeper step of research.The experiment shows that these new structures, the principle, the method develop to the 4YL2 draught type corn harvest machine successfully has the important instruction function. Simultaneously fills our country in the vertical roller corn harvest machine mechanism research aspect blank.