小型整杆式甘蔗收获机输送通道设计需求研究  

Research on design requirement for the conveying channel of small whole stalk sugarcane harvester

作　　者：李俚[1] 夏鹏[1] 

机构地区：[1]广西大学机械工程学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2014年第2期334-340,共7页Journal of Guangxi University（Natural Science Edition）

基　　金：广西科技攻关项目(桂科攻0992002-18);广西制造系统和先进制造技术重点实验室项目(Nos.11-031-12S04)

摘　　要：针对小型整杆式甘蔗收获机工作不稳定、输送通道容易阻塞等情况,研究了在甘蔗收获过程中,甘蔗在机器输送通道内物流量的形成机理,并建立了通道内甘蔗体积流和质量流的动态模型;利用物理样机进行田间收割实验;通过分析实验数据,验证了所建立的甘蔗物流动态模型,并获得了能够保证机器较好收获效果(包括含杂率在2%以下,断尾率在85%以上,产量在4 t/h以上)的工作数据;同时也得到在当前甘蔗农艺条件下,输送通道的最大甘蔗物流负载量;并以一定的负载量对输送通道关键节点设计需求进行了分析,为收获机输送通道提供了设计依据。通过从物流系统的角度,采用多指标综合研究甘蔗收获机输送通道的设计需求,获得了不同工况条件下,发挥机器工作性能的最优匹配参数和最大服务的负载需求,使机器改进的设计指标更具体和更合理。Aiming at the small whole stalk sugarcane harvester operating instability and the clogging easily of the conveying channel, the formation mechanism of sugarcane flow in the channel was stud-ied during the sugarcane harvesting. Dynamic models of sugarcane volume flow and mass flow were established respectively. The sugarcane harvesting experiment was conducted with the physical proto-type. The sugarcane flow dynamic models were verified by analyzing the experimental data. Work date was obtained to ensure a better harvest effects of impurity rate below 2%, tail docking rate a-bove 85%, and a the yield of 4 tons per hour. At the same time, the relationship between the size of sugarcane flow and machine parameters in channel was determined and the maximum load of sugar-cane flow was obtained under the current sugarcane agronomic condition. Finally, the design re-quirements for key nodes of conveying channel were analyzed to provide the design basis for sugar-cane harvester. From the perspective of the logistics system, the design demand of conveying chan-nel was studied by comprehensive multi index method. Working parameters of the machine optimal performance and the requirements for maximum service load under different conditions were obtained to improve the design of the harvester more specific and more reasonable.

关 键 词：甘蔗收获机 动态模型 输送通道 设计需求 

分 类 号：TH122[机械工程—机械设计及理论] S225.53[农业科学—农业机械化工程]