矿井提升机新型后备保护系统设计

发布时间：2019-01-17 19:46

【摘要】：针对现有提升机后备保护系统存在的相对式行程监测、松绳保护可靠性低、监测参数不集中及测量数据自成一体等问题,研究并提出改进检测方案,进而设计了能够实现重要参数集中监测、提升容器行程的位置实现绝对式测量、提供多重松绳保护、系统数据可兼容到其他中控系统中的新型提升机后备保护系统。新型的后备保护系统通过对4路开关、4路脉冲、2路容器行程、多路电流型传感器进行实时监测,实现电气、速度、松绳、过卷、制动等多项保护功能,并能根据可设定的报警值,进行报警指示或切断安全回路。后备保护系统设计内容包括硬件电路设计和软件开发两个部分。硬件电路主要飞思卡尔MC9S08AW32主控芯片、8路差分输入SPI接口18位AD7609、X5045存储芯片、光耦隔离输入输出、4*4矩阵键盘、液晶显示屏、两路独立RS485通信接口、报警指示灯等组成。软件功能主要包括监测参数的采集处理、运行参数的设置、数据显示及各类故障报警和安全回路控制等。监测数据的输出采用标准MODBUS协议完成,方便外围控制系统或计算机监测系统读取后备保护系统的测量数据。本文对新型提升后备保护系统的电路设计和软件开发进行了详细说明,并对绝对位置行程监测的方案进行了可行性模拟测试,实验结果表明:所设计开发的提升机后备保护系统的绝对位置行程监测方案可行,整体测量误差小于0.01%,在容器行程的起始和停止段测量精度可达0.05m,该方案适用于现有大多数矿井提升机系统。新型后备保护系统的设计理念和行程监测方案对改善提升机安全保护和提高电控系统自动化程度方面具有一定的实用性和先进性。
[Abstract]:Aiming at the problems of relative stroke monitoring, low reliability of loose rope protection, inconcentration of monitoring parameters and self-integration of measurement data, the existing hoist backup protection system is studied and improved detection scheme is put forward. Furthermore, a new type of hoist backup protection system is designed, which can realize the centralized monitoring of important parameters, realize absolute measurement of the position of the lifting vessel stroke, and provide multiple loose rope protection. The data of the system can be compatible with other central control systems of a new type of hoist backup protection system. The new back-up protection system can realize many protection functions, such as electric, speed, loose rope, overwinding, braking and so on, through real-time monitoring of 4-way switch, 4-way pulse, 2-way vessel stroke, multi-channel current type sensor, etc. And can be set according to the alarm value, alarm instructions or cut off the safety loop. The design of backup protection system includes two parts: hardware circuit design and software development. The hardware circuit is mainly composed of Freescale MC9S08AW32 main control chip, 8-channel differential input SPI interface 18-bit AD7609,X5045 memory chip, optocoupler isolated input and output, 4 / 4 matrix keyboard, liquid crystal display screen, two independent RS485 communication interface, alarm indicator lamp and so on. The functions of the software mainly include the collection and processing of monitoring parameters, the setting of operation parameters, the display of data, all kinds of fault alarm and safety loop control and so on. The output of monitoring data is accomplished by standard MODBUS protocol, which is convenient for peripheral control system or computer monitoring system to read the measurement data of backup protection system. In this paper, the circuit design and software development of the new hoisting backup protection system are described in detail, and the feasibility simulation test of the scheme of absolute position stroke monitoring is carried out. The experimental results show that the absolute position stroke monitoring scheme of the designed back-up protection system of hoist is feasible, the overall measuring error is less than 0.01, and the measuring accuracy of the starting and stopping section of the container stroke can reach 0.05m. This scheme is suitable for most existing mine hoist systems. The design concept and itinerary monitoring scheme of the new backup protection system are practical and advanced in improving the safety protection of hoist and increasing the automation degree of electronic control system.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD534

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