Lightweight Design Of Scraper Conveyor Arm Of A Certain Type Of Cutting Sugarcane Combine Harvester

With the advancement of agricultural mechanization process,realize the comprehensive mechanization of sugarcane industry industry more and more attention,foreign cane harvesting machinery is already relatively mature,still in the process of development,our country’s sugar cane machinery development to adapt to the characteristics of our country small and medium-sized sugar cane combine harvester has become the most urgent problems,but at home most of the models are of sugarcane harvester industry is not mature,it is not very good to adapt to our country’s sugar cane producers hilly terrain.In this paper,the lifting device of small and medium-sized cutting type combined sugarcane harvester is taken as the research objective.Firstly,some engineering constants of sugarcane material are tested and studied through the test test scheme.The static friction coefficient and elastic collision recovery coefficient between sugarcane and sugarcane are obtained to be 0.33 and 0.50 respectively.The static friction coefficient between sugarcane and steel is 0.61,and the elastic collision recovery coefficient is 0.55.Will then cane in the transport process of ascension as a medium,by discrete element software EDEM for sugarcane section in the transport process of ascension for scraper conveyor arm through analyzing the load spectrum,and under the condition of statics analysis on and working conditions are analyzed and compared,in the process of sugar cane for lifting and conveying,the static analysis of the research results for theory research and analysis,and the dynamic analysis of discrete case is more realistic to describe and reflect the cane in scraper conveyor arm movements and load conditions.Using finite element analysis method to study and analysis of sugarcane scraper conveyor arm,sugarcane scraper conveying arm through Hypermesh software of finite element model is established and meshing,parts connection and so on a series of former work,the sugar cane scraper conveying arm through analyzing the different kinds of working condition,in turn,and the various conditions of chalk imported into the finite element analysis,based on the finite element model of transporting arm today cane scraper conveying arm model analysis and evaluation.Determined sugarcane segment in the process of ascension and transportation required to transfer space,in order to promote does not affect sugarcane benign transportation situation,establishing the topology optimization of scraper conveyor arm space,topology optimization of scraper conveyor arm,beams and reinforced by its topology optimization to undertake decorating,after of stiffened plate,bar,side beam size optimization parts,baffle,etc.Transport arm and the size of the optimized model is analyzed,and compared with the original model,come to the conclusion that the two optimization methods by topology optimization and size optimization,led to the overall quality of the sugar cane scraper conveying arm from 1668 kg to 1356 kg,the whole machine quality dropped by 18.7%,stress value of the machine yo have also become relatively uniform stress distribution,the maximum stress value of the optimized from 160.7 Mpa to 158.3 Mpa,but still in the range of safety factor;The maximum relative displacement changed from 4.193 mm to 3.766 mm,which had little impact on the operation of the whole machine.In this paper,through the discrete element analysis of the sugarcane transportation section,the simulation experiment analysis is carried out on the scraper conveying arm of the hoisting device of the cutting type sugarcane harvester in the transportation process,and then the optimization is carried out through the two optimization methods of topology optimization and size optimization,which has played a good optimization effect.