盘刀式茎秆切碎机结构毕业设计.doc

摘 要 本研究以棉秆等硬茎秆为研究对象，通过对秸秆原料特性的分析，确定切碎原理和方法，设计出动力消耗低、粒度大小满足压缩成型要求的秸秆切碎机。推动我国目前综合开发利用农作物秸秆资源的技术创新和实际应用。 通过对原始数据的分析方案的论证比较和有关数据的分析计算，主要完成了切碎机的总体设计，电动机的选择以及传动方案的分析比较与选择等内容。在此基础上对切碎机机体 的结构尺寸、驱动转轴的结构尺寸、V 带传动等设计应用价值进行了详细的计算和说明。 该机主要由切碎器、变速箱和喂入机构、喂入槽、甩抛装置、带传动、电动机组成。秸秆由喂入槽喂入，在喂入机构作用下将其压实并卷入机构，被动定刀片组成的切碎器切碎，最后由抛送装置抛出机外 关键词：盘刀切碎机 ABSTRACT In this study, hard cotton stalk stalk as the research object, through the straw raw materials characteristic analysis, determine the cutting principle and method of design, low power consumption, particle size to meet the requirements of the chopped straw compression molding machine.Promote our country the comprehensive exploitation and utilization of crop straw resources in technical innovation and practical application。 Through the analysis on the original data, program evaluation data comparison and analysis of the calculation, mainly to complete the shredding machine overall design, the choice of motor drive and program analysis, comparison and selection.On the basis of the shredding machine structure of the body size, structure size drive shaft, such as V belt drive design value are calculated in detail and description. The machine is mainly composed of cutter, gear box and a feeding mechanism, feeding trough, spin off device, belt drive, motor.The principle is that the straw from the feeding chute feeding, in the feeding mechanism under the action of the compaction and involved mechanism, passive fixed blade consists of the shredder shredding, finally by throwing device throwing machine Keywords: Radial-knife，cutter，stalk，feed，thrower  摘要 Ⅰ Abstract Ⅱ 第 1 章 绪论 1 1.1本研究的目的和意义 1 1.2农作物秸秆综合利用现状 2 1.3 秸秆的特性 3 1.3.1 秸秆的物理特性 3 1.3.2 秸秆的切碎特性 4 1.3.3 秸秆的化学成分 4 第 2 章 切碎机整体设计方案 5 2.1 总体结构设计 5 2.2 样机的性能试验 5 2.3 本章小结 7 第 3 章 秸秆切碎机结构设计 8 3.1 切碎器设计 8 3.1.1 切碎方式选择 8 3.1.2 切碎原理分析 9 3.1.3 割刀参数分析 10 3.1.4 主要技术参数确定 11 3.2 喂入机构设计 12 3.3 传动系统设计 13 3.4 本章小结 14 第 4 章 盘刀式切碎器刀刃曲线对切割能耗的影响 15 4.1 切割过程几何参数的分析 15 4.2 试验设计 16 4.3 结果与分析 16 4.4结论 17 4.5本章小结 18