胶辊砻谷机转子系统机械结构的等效设计方法  

An equivalent design method for mechanical structure of rotor system of rubber roller huller

作　　者：程敏[1] 陈睿斌 曹宪周[1] CHENG Min;CHEN Ruibin;CAO Xianzhou(School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学机电工程学院,河南郑州450001

出　　处：《河南工业大学学报（自然科学版）》2023年第3期113-119,共7页Journal of Henan University of Technology：Natural Science Edition

摘　　要：针对胶辊砻谷机转子系统机械结构理论设计方法缺乏的现状,提出了一种充分考虑砻谷产量、稻谷颗粒尺寸的等效设计方法。将砻谷产量等效为稻谷在胶辊上的接触面积,建立砻谷产量、稻谷颗粒尺寸与胶辊尺寸及其转速之间的关系;将胶辊挤压变形等效为稻谷颗粒辊间承受的挤压力,建立辊间挤压力与稻谷颗粒尺寸、胶辊尺寸及物性之间的关系;将辊间挤压力刚化等效为转轴的外载荷,建立砻谷功率与砻谷产量、稻谷颗粒尺寸、胶辊尺寸及物性之间的依存关系。算例表明:当砻谷机设计产量为2.5 t/h,稻谷颗粒长轴2a为9 mm,短轴2c为2.5 mm时,计算得到的电机功率、胶辊转速等参数与MLGQ(T)25型胶辊砻谷机吻合良好。因此,该方法可靠、有效,可为胶辊砻谷机的优化设计、性能分析提供理论指导。With the aim of solving the lack of theoretical design methods for the mechanical structure of the rotor system of the rubber roller huller,a new equivalent design method was proposed,which fully considered the hulling yield and the geometric size of paddy.The idea of"equivalence"was applied to the whole calculation process of this method.Firstly,the relationship between the paddy hulling yield,the geometric size of paddy grains and the geometric size of rubber roller and its rotational speed were established by equivalent the paddy hulling yield to the contact area of paddy on the rubber roller.Secondly,the relationship between the rubber roller extrusion force and the physical properties of the paddy and the rubber roller was established by equivalent the extrusion deformation of the rubber roller to the extrusion force of the paddy grains between the rubber rollers.Finally,the relationship between the paddy hulling power and the paddy hulling yield,the geometric size of paddy and rubber roller was established by equivalent the extrusion force between the rubber rollers to the external load of the rotating shaft.Meanwhile,a method to evaluate the rationality of paddy hulling power by using the rotational power determined by the moment of inertia of rubber roller was established.The design calculation example showed that when the designed paddy hulling yield was 2.5 t/h,the long axis 2 a was 9 mm and the short axis 2 c was 2.5 mm of the paddy grains,the calculated parameters such as the motor power,the rubber roller speed and the rubber roller length were in good agreement with the MLGQ(T)25 of rubber roller huller.Therefore,this method is reliable and effective,and can provide theoretical guidance for the optimization design and performance analysis of rubber roller huller.

关 键 词：胶辊砻谷机 转子系统 等效面积 等效载荷 稻谷 

分 类 号：TS210.3[轻工技术与工程—粮食、油脂及植物蛋白工程]