采煤机调高实验装置监控系统设计

发布时间：2018-04-04 23:05

本文选题：采煤机调高实验装置　切入点：监控系统　出处：《安徽理工大学》2017年硕士论文

【摘要】：尽管不可再生能源终将被新能源所取代,但是煤炭资源在现在的能源消耗中所占比重依然很大,提高煤炭资源的开采效率也显得尤为重要。采煤效率的提高,关键是提高采煤工作面的机械化、自动化水平。目前,国内采煤工作面常用设备中液压支架和刮板输送机均已实现自动化,而采煤机的自动化水平相较国外有待进一步提高。采煤机滚筒自动调高技术是制约采煤机自动化水平的关键技术之一,采煤机滚筒自动调高技术的研究手段包括理论研究、仿真研究和实验研究。从实验研究的角度出发,作者所在的课题组设计了采煤机调高实验装置。在采煤机调高实验装置机械和液压结构部分设计完成的基础上,论文完成了其电气部分的设计,即设计了采煤机调高实验装置的监控系统。首先对采煤机调高实验装置监控系统进行了总体设计,监控系统为三层式控制结构,具体为设备层、控制层和控制管理层;接着对设备层的数据采集系统作了选型设计,包括振动传感器、压力传感器、电流传感器等传感器和信号调理器以及数据采集卡选型;然后进行了采煤机调高实验装置的电机控制线路设计,对线路中的配电电器作了选型和集成设计了电控柜;其次设计了控制层的下位机PLC控制系统,明确了 PLC控制要求,对PLC主机单元和扩展单元进行了选型设计,设计了 PLC控制程序,包括电机启停控制程序、模拟量采集程序、开环控制程序和闭环PID控制程序;然后设计了控制管理层的上位机组态监控软件,给出了组态监控软件的设计要求,阐述了设计步骤,完成了监控画面设计并且建立了标准数据库;最后设计了实验对采煤机调高实验装置监控系统进行了验证,在实验过程中详细说明了上位机PC与下位机PLC以及上位机组态监控软件与下位机PLC之间的通讯方法。
[Abstract]:Although non-renewable energy will eventually be replaced by new energy, the proportion of coal resources in the current energy consumption is still very large, so it is particularly important to improve the efficiency of mining coal resources.The key to the improvement of coal mining efficiency is to improve the mechanization and automation level of coal face.At present, the hydraulic support and scraper conveyor in the common equipment of domestic coal mining face have been automated, but the automation level of the shearer needs to be further improved.Automatic height regulation technology of shearer drum is one of the key technologies to restrict the automatic level of shearer. The research means of automatic height regulation technology of shearer drum include theoretical research, simulation research and experimental research.From the point of view of experimental research, the author's research group designed an experimental device for height adjustment of shearer.On the basis of the design of the mechanical and hydraulic structure part of the shearer's height adjusting experimental device, the paper has completed the design of its electrical part, that is, designed the monitoring system of the shearer's height adjusting experimental device.First of all, the overall design of the monitoring system of the shearer height control experimental device is carried out. The monitoring system is a three-layer control structure, including the equipment layer, the control layer and the control management layer, and then the data acquisition system of the equipment layer is selected and designed.It includes vibration sensor, pressure sensor, current sensor, signal regulator and data acquisition card.The type selection and integration design of the distribution apparatus in the circuit are made, and the electronic control cabinet is designed. Secondly, the PLC control system of the lower computer in the control layer is designed, the PLC control requirements are defined, and the PLC host unit and the expansion unit are selected and designed.PLC control program is designed, including motor start and stop control program, analog quantity acquisition program, open loop control program and closed loop PID control program.The design requirements of configuration monitoring software are given, the design steps are expounded, the monitoring picture design is completed and the standard database is established. Finally, the experiment is designed to verify the monitoring system of the shearer's height adjusting experimental device.In the process of experiment, the communication method between PC and PLC, configuration monitoring software and PLC is described in detail.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD632.1

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