摘要
针对城市下水道清理过程中机械化、智能化程度低的问题,根据长撑杆双颚抓斗和门式起重机,设计出直角切入式抓斗和支撑结构;以STM32单片机和LABVIEW为基础搭建压力测试系统,探究钢板切入沙石颗粒物料时的作用关系,结果表明钢板所受阻力与切入深度平方成正比,与板材宽度成正比,从重量角度出发判断抓斗设计的合理性;通过ANSYS仿真分析了支撑结构强度,运用离散元分析软件EDEM,模拟了直角切入式抓斗的挖掘过程,得到抓斗在挖掘过程中的受力变化曲线。结果表明:直角切入式抓斗配合支撑结构能够代替人工完成下水道清洁工作,适用于城市化、大面积作业。
In view of the low degree of mechanization and intelligence in the process of urban sewer cleaning,a right-angle cut-in grabbing and supporting structure are designed according to the long-stay double-jaw grab and gantry crane.Based on STM32 single chip microcomputer and LABVIEW,the pressure test system is built to explore the influence of the steel plate when cutting into sand and gravel particles.The results show that the resistance of the steel plate is proportional to the square of the cutting depth and the width of the plate.The rationality of the grab bucket design is judged from the perspective of weight.The strength of the supporting structure is analyzed by ANSYS simulation,and the excavation process of the right-angle cut-in grab is simulated using the discrete element analysis software EDEM,and the stress curve of the grab during the excavation process is obtained.The results show that the right-angle cut-in grab with the supporting structure can replace the manual work to complete the sewer cleaning,and is suitable for urbanization and large-area operation.
作者
王明旭
宋岳昌
WANG Mingxu;SONG Yuechang(School of Electrical and Mechanical Engineering,Henan University of Technology,Zhengzhou 450001,China;Henan Provincial KeyLaboratory lof Grain and O:L Storage Buildings and Safety,Henan University of Technology,Zhengzhou 450001,China)
出处
《机械设计与研究》
CSCD
北大核心
2023年第5期219-224,共6页
Machine Design And Research
基金
河南省教育厅青年骨干教师项目(2020GGJS088)
2021年河南省粮油仓储建筑与安全重点实验室开放课题基金(2021KF-B02)。
