Design Optimization And Experimental Research The Leaf Cleaning Element For Small-scale Sugarcane Leaf Machine

Restricted by the geographical conditions in the South China, the sugarcane platingscale is relatively smaller and commonly more in hills, sloping field where is not suitedfor large-scale sugarcane harvesting machinery to work. So the development of smallsugarcane peeling machine is of great significance.As one of the major parts of the small-sugarcane leaf cleaning machines, the workefficiency of sugarcane leaf cleaner is one of the bottle necks restricting to improve thesugarcane mechanization production level. In this paper, the top-down design method ofparallel is applied based on visualized virtual design technology and actual need ofproduct development to achieve the target. The cleaning leaf efficiency of sugarcane leafcleaner was improved and increased through three aspects of the work.⑴Change thecleaning leaf elements’ attributes, that is to redesign its material, shape and size.⑵Improve the structure of small sugarcane peeling machine that is to improve its positionand quantity relationship.⑶This paper used a new installing method of cleaning leafelements, helical angle installing method. Through these above work to achieve enhancingthe efficiency of the machine, which is to mean to contain lower impurity rate, injury rateand breaking rate.At first, from the angle of the small sugarcane leaf clean machines production tocarry on the overall structural design, such as conveying roller, bracket, cleaning roller andcleaning element.Secondly, composite polymer material is used for a new ring leaf cleaning elementdesign and manufacture. Through the test, it can be found that the cleaning leaf elementcan be continuous work at least140hours, the service life of more107times. At the sametime, the dynamics formula is derived of analyzing the process of sugarcane cleaning, andthe elements which affect the cleaning leaves will be discussed.Then, three-dimensional assemble model of sugarcane leaves cleaner with cleaningleaves elements installed in three different helix angles is established by using Pro/Esoftware. And import it to ADAMS in order to establish a virtual simulation model. Thenput the sugarcane and cleaning leaf element using ANASY into flexible body, lead theminto ADAMS and installed with other parts, simulated in ADAMS with different cleaningleaves rotating speed. At the same time, record the contact force between sugarcane andcleaning leaf element during cleaning leaves process in ADAMS. In the end, havingextracted datum to summarize the changing trend charts of acting force following different cleaning leaves rotating speed and helix angle.Finally, experimental platform was established to correspond with the same sizeaccording to the result of virtual simulation. Then cleaning leaves experiment underdifferent conditions was analyzed that was impurity rate, injury rate and breaking rate ofsugarcane cleaning leaves. The experimental results indicated this experiment wassuccessful. Test data can be well achieved when the cleaning leaf element installed in30helix angle, cleaning leaf rotating speed was900r/min. The remaining sugarcane leavespercentage was2.58﹪, sugarcane hurting percentage was3.81﹪and no sugarcane wasbroken off.This experiment verified the sugarcane leaves cleaner with cleaning leaves elementsinstalled in helix angle proposed in this paper is feasible, and also it is a method toimprove the efficiency of cleaning leaves.