基于无线通讯技术的松土装置应力应变监测系统设计与试验  

Design and experiment of stress and strain monitoring system for soil loosening device based on wireless communication technology

作　　者：董兆森 张佳喜 周欣[2] 罗文杰[2] 蒋永新[2] 郭刚 DONG Zhaosen;ZHANG Jiaxi;ZHOU Xin;LUO Wenjie;JIANG Yongxin;GUO Gang(College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Institute of Agricultural Mechanization,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;Xinjiang Key Laboratory of Intelligent Agricultural Equipment,Urumqi 830052,China)

机构地区：[1]新疆农业大学机电工程学院,乌鲁木齐830052 [2]新疆农业科学院农业机械化研究所,乌鲁木齐830091 [3]新疆智能农业装备重点实验室,乌鲁木齐830052

出　　处：《新疆农业科学》2024年第4期1029-1040,共12页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区重大专项(2022A02007-2-3);新疆农机研发制造推广应用一体化项目(YTHSD2022-09);新疆农业科学院青年科技骨干创新能力培养项目“基于多源信息残膜回收机关键部件监测预警系统的研究”(xjnkq-2023025);新疆维吾尔自治区重点研发项目(2022B02023-3)。

摘　　要：【目的】测量滚筒式残膜回收机中的主要部件松土齿耙在作业过程中监测系统装置的应力应变状况,为提高残膜回收机工作效率、降低松土齿耙的故障率提供参考。【方法】设计松土齿耙应力应变监测系统,通过ANSYS分析确定监测点,采用DH5922N数据分析仪标定传感器,采集模块对松土齿的微小变形进行应力应变测量,连续监测松土齿应力应变数据,并针对松土齿耙壅土过载工况下提前预警。【结果】应力应变监测系统可以有效的对松土齿耙应力应变实时监测,模拟机具田间作业工况,轻度过载阈值为140 Mpa,严重过载阈值为180 Mpa,监测结果整体平均相对误差为10.12%,过载阈值设置可提前预警。【结论】松土齿耙应力应变监测系统主要由微处理器、应力应变采集模块、AD模数转换模块、电源模块、通讯模块、云平台可视化界面6部分组成,可实时监测松土齿耙的应力应变作业状况。【Objective】The main component of the drum type residual film recovery machine is prone to heap soil and deformation in the process of operation.It is of great significance to monitor its stress and strain,improve the working efficiency of the residual film recovery machine and reduce the failure rate of the residual film recovery machine.【Methods】The strain monitoring system of soil teeth was designed,the monitoring point was determined by ANSYS analysis,the sensor was calibrated by DH5922N data analyzer,and the strain signal acquisition unit measured the stress and strain of the small deformation of soil teeth,realizing the continuous monitoring of the stress and strain data of soil teeth,and giving early warning to the overloading condition of soil teeth rake.【Results】The real-time monitoring of stress and strain of the pine rake could be carried out effectively,and the field operation speed was simulated.The mild overload threshold was determined to be 140 Mpa,and the severe overload threshold to be 180 Mpa.The overall average relative error of the monitoring results was 10.12%.【Conclusion】The stress and strain monitoring system of soil rake is mainly composed of six parts:Microprocessor,strain signal acquisition unit,AD analog-to-digital conversion,power module,communication module and cloud platform visual interface.

关 键 词：监测系统 松土装置 滚筒式残膜回收机 应力应变 ZIGBEE 

分 类 号：S24[农业科学—农业电气化与自动化]