盾构滚刀磨损远程监控系统设计

发布时间：2018-04-18 18:02

本文选题：盾构滚刀 + 磨损检测　；参考：《河南科技大学》2015年硕士论文

【摘要】：伴随着21世纪以来我国经济的快速发展,城市化的不断推进,盾构掘进机已经成为城市基础建设必不可少的施工装备。盾构机工作的掘进形式为刀盘切削土体,刀具作为盾构工作的基本执行元件,刀具的磨损失效将导致整机停机开仓检测,降低施工效率,因此对盾构刀具磨损的实时监测已成为提高工程效率的必然途径。本论文以无线传输为设计理念,采用现代传感器技术、短距离无线射频通信技术、计算机接口技术、GPRS网络通信技术等相结合设计研发了盾构滚刀磨损远程监测系统。该系统能够远程实时在线监测滚刀当前磨损量及工作状态等信息,便于工作人员对刀具的磨损失效及时做出决策。本文的主要设计工作有以下几部分。1.论文首先分析了国内外对于盾构滚刀磨损检测技术的研究现状,并根据系统设计要求,确定了系统的总体方案及设计原则。2.分析盾构刀具的切削原理,确定所需检测的物理量,并依据系统设计原则,选择合适的传感器,根据传感器检测原理设计相应的检测方案,尤其是对电涡流传感器的位移标定与温度补偿进行了详细的说明。3.完成基于CC1101的现场无线采集子系统的设计。系统硬件设计部分主要包含对无线射频模块CC1101应用电路、低功耗MCU外围电路、电源电路及RS485接口电路等的设计;软件设计主要包括对各个传感器的采样机制和无线数据收发流程的设计并深入分析了系统的低功耗设计方案。4.采用GPRS模块实现滚刀磨损数据的远程传输。研究GPRS技术的网络结构及特点,采用透明模式传输TCP网络数据;采用Lab VIEW编写监控中心软件。5.论文最后对整个监控系统进行软硬件调试,并提出对系统的改进方法。经现场测试,本文设计的盾构滚刀磨损远程监控系统能够判断滚刀的偏磨、断裂、停转等异常现象,并且具有低功耗、精度高、可靠性高等优点,传感器节点可以免维护连续工作时长达四个月,具有较好的推广价值。
[Abstract]:With the rapid development of economy and urbanization since the 21st century, shield tunneling machine has become an indispensable construction equipment for urban infrastructure construction.The tunneling form of shield machine is cutting soil with cutter head, the tool is the basic executing element of shield machine, the tool wear failure will cause the whole machine to shut down and open the storehouse, and reduce the construction efficiency.Therefore, real-time monitoring of shield machine tool wear has become an inevitable way to improve engineering efficiency.In this paper, the remote monitoring system of shield hob wear is designed and developed based on the concept of wireless transmission, modern sensor technology, short range radio frequency communication technology, computer interface technology and GPRS network communication technology.The system can monitor the current wear amount and working state of hob in real time and can help the workers to make timely decision on tool wear failure.The main design work of this paper is as follows. 1.Firstly, this paper analyzes the research status of shield hob wear detection technology at home and abroad, and determines the overall scheme and design principle of the system according to the system design requirements.This paper analyzes the cutting principle of shield machine tool, determines the physical quantity needed for testing, and according to the system design principle, selects the appropriate sensor and designs the corresponding detection scheme according to the principle of sensor detection.In particular, the displacement calibration and temperature compensation of eddy current sensor are described in detail.The design of field wireless acquisition subsystem based on CC1101 is completed.The hardware design of the system mainly includes the design of radio frequency module CC1101 application circuit, low power MCU peripheral circuit, power circuit and RS485 interface circuit.The software design mainly includes the sampling mechanism of each sensor and the design of wireless data transceiver flow, and deeply analyzes the low power design scheme of the system.GPRS module is used to realize remote transmission of hob wear data.This paper studies the network structure and characteristics of GPRS technology, adopts transparent mode to transmit TCP network data, and uses Lab VIEW to program monitoring center software .5.Finally, the software and hardware of the whole monitoring system are debugged, and the improvement method of the system is put forward.Through the field test, the remote monitoring system of shield hob wear designed in this paper can judge the abnormal phenomena of hob, such as partial wear, fracture and stop turning, and has the advantages of low power consumption, high precision, high reliability, etc.Sensor nodes can be maintenance-free for up to four months, which has a good promotion value.
【学位授予单位】：河南科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.39;TP277

【参考文献】