一、任务的提出在农业方面降低燃油消耗应从机具的作业性能和能源的观点出发,将主要的工作部件设计成最佳的结构形式。设计参数对机具的性能、能耗和材料费用以及总的生产成本有各种不同的影响。因此需要通过试验研究找出理论依据并做出结论。在设计谷物联合收割机时最重要的部件要数脱粒机构,它要消耗整机功率的40%,并且对整机的结构也有很大的影 First, the task proposed to reduce fuel consumption in agriculture should be from the operational performance of equipment and energy point of view, the main components of the work designed the best form of structure. The design parameters have different effects on the performance, energy consumption and material costs of the implement as well as the total production cost. Therefore, we need to find the theoretical basis and make conclusions through experimental research. In the design of grain combine harvester when the most important part of the number of threshing mechanism, which consumes 40% of the power of the machine, and the structure of the machine also has a great shadow