大颗粒物料组合称重系统的冲击干扰分析与优化  

Shock interference analysis and optimization of combined weighing system for large particle materials

作　　者：申阳 程苏华 陈琪 胡虎标 张超[1,2] 周明刚 SHEN Yang;CHENG Suhua;CHEN Qi;HU Hubiao;ZHANG Chao;ZHOU Minggang(Research and Design Institute of Agricultural Machinery Engineering,Hubei University of Technology,Wuhan 430068,China;Hubei Agricultural Machinery Equipment Intelligent Engineering Technology Research Center,Wuhan 430068,China)

机构地区：[1]湖北工业大学农机工程研究设计院,武汉430068 [2]湖北省农机装备智能化工程技术研究中心,武汉430068

出　　处：《包装与食品机械》2023年第3期32-36,64,共6页Packaging and Food Machinery

基　　金：湖北省技术创新专项(2017ABA164);湖北省教育厅科学技术研究计划中青年人才项目(Q20171403);百校联百县项目(BXLBX0381)。

摘　　要：针对智能组合秤称重土豆等较大果蔬产生较大冲击干扰,影响称重精度和速度的问题,对单组称重系统3种工况干扰信号进行试验分析,通过对采集的振动信号进行时域和频域分析,建立数学模型分析响应影响。增大称重系统阻尼比和折弯以增大称重斗刚度,提高模态频率。优化后对500 g物料称重100次,每分钟称重次数/平均绝对误差/最大短缺量分别从15/35.06 g/20.7 g优化到18/21.41 g/12.7 g,实现提高称重精度与速度目的,达到标准要求。研究结果可为智能组合秤称重系统设计提供理论依据。In order to address the problem of larger shock interference produced when weighing potatoes and other larger fruits and vegetables by intelligent combination scales,which affects the weighing accuracy and speed,experimental analysis of the interference signals of three working conditions of the single-group weighing system was conducted,and the response shock was analyzed by time domain and frequency domain analysis of the collected vibration signals,and mathematical model was established.The damping ratio and bending of the weighing system were increased to increase the stiffness of the weighing hopper and improve the modal frequency.After the optimization,the number of weighing times per minute/average absolute error/maximum shortage was optimized from 15/35.06 g/20.7 g to 18/21.41 g/12.7 g for 100 weighing times of 500 g,which achieved the goal of improving the weighing accuracy and speed and meets the standard requirements.The results of the study can provide a theoretical basis for the design of intelligent combination scale weighing system.

关 键 词：冲击干扰 称重信号 冲击响应 信号处理 

分 类 号：TS206.5[轻工技术与工程—食品科学]