基于EDEM的多螺杆混凝土布料机工作性能分析与试验研究  

Performance Analysis and Experimental Study of Multi-Screw Concrete Distributor Based on EDEM

作　　者：邹德芳 闻诗洋 于文达 张世英 ZOU Defang;WEN Shiyang;YU Wenda;ZHANG Shiying(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang,China,110168;Northern Heavy Industry Group Co.Ltd.,Shenyang,China,110141)

机构地区：[1]沈阳建筑大学机械工程学院,辽宁沈阳110168 [2]北方重工集团有限公司,辽宁沈阳110141

出　　处：《沈阳建筑大学学报（自然科学版）》2022年第5期929-936,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：“十三五”国家重点研发计划项目(2017YFC0704003);辽宁省自然科学基金指导计划项目(20180551119);沈阳建筑大学科研创新培育计划项目(CXPY2017005)。

摘　　要：目的 研究螺杆结构参数对多螺杆混凝土布料机工作性能的影响,为多螺杆混凝土布料机结构优化设计提供参考。方法 采用离散元仿真和试验研究相结合的方式,探究不同螺距、叶片直径、叶片厚度下,布料机质量流率、螺杆转矩以及电机功率的变化规律;采用正交试验法找出三种因素对螺杆工作性能的影响程度。结果 随着螺旋叶片直径及螺距的增大,螺杆电机功率和转矩消耗增大;随着螺旋叶片厚度增大,螺杆质量流率平稳;试验装置中螺杆螺距为40 mm、螺旋叶片直径为50 mm、螺旋叶片厚度为3.5 mm时,最有利于降低布料机功耗,提高布料均匀性。结论 三种螺杆结构参数对布料机工作性能的影响程度由大到小依次为螺旋叶片直径,螺距,螺旋叶片厚度。The influence of screw structure parameters on the working performance of multi-screw concrete distributor is studied to provide reference for structural optimization design of multi-screw concrete distributor.A combination of discrete element simulation and experimental research is used to explore different pitches.Spiral blade diameter,spiral blade thickness,the multi-screw concrete spreader mass flow rate,screw torque and motor power changes.With the increase of the diameter and pitch of the spiral blade,the power and torque consumption of the screw motor increase;as the thickness of the spiral blade increases,the mass flow rate of the screw is stable.Finally,the orthogonal test method was used to find out the three factors affecting the working performance of the screw.In the experimental device of the distributor,the set of structural parameters of the screw pitch is 40 mm,the diameter of the spiral blade is 50 mm,and the thickness of the spiral blade is 3.5 mm,which is most conducive to reducing the power consumption and improving the uniformity of the distributor.The order of influence of performance from large to small is:spiral blade diameter,pitch,spiral blade thickness.

关 键 词：多螺杆混凝土布料机 螺旋叶片 工作性能 离散元 

分 类 号：TU274.7[建筑科学—建筑设计及理论]