【摘要】：針對現(xiàn)有提升機后備保護系統(tǒng)存在的相對式行程監(jiān)測、松繩保護可靠性低、監(jiān)測參數(shù)不集中及測量數(shù)據(jù)自成一體等問題,研究并提出改進檢測方案,進而設(shè)計了能夠?qū)崿F(xiàn)重要參數(shù)集中監(jiān)測、提升容器行程的位置實現(xiàn)絕對式測量、提供多重松繩保護、系統(tǒng)數(shù)據(jù)可兼容到其他中控系統(tǒng)中的新型提升機后備保護系統(tǒng)。新型的后備保護系統(tǒng)通過對4路開關(guān)、4路脈沖、2路容器行程、多路電流型傳感器進行實時監(jiān)測,實現(xiàn)電氣、速度、松繩、過卷、制動等多項保護功能,并能根據(jù)可設(shè)定的報警值,進行報警指示或切斷安全回路。后備保護系統(tǒng)設(shè)計內(nèi)容包括硬件電路設(shè)計和軟件開發(fā)兩個部分。硬件電路主要飛思卡爾MC9S08AW32主控芯片、8路差分輸入SPI接口18位AD7609、X5045存儲芯片、光耦隔離輸入輸出、4*4矩陣鍵盤、液晶顯示屏、兩路獨立RS485通信接口、報警指示燈等組成。軟件功能主要包括監(jiān)測參數(shù)的采集處理、運行參數(shù)的設(shè)置、數(shù)據(jù)顯示及各類故障報警和安全回路控制等。監(jiān)測數(shù)據(jù)的輸出采用標(biāo)準(zhǔn)MODBUS協(xié)議完成,方便外圍控制系統(tǒng)或計算機監(jiān)測系統(tǒng)讀取后備保護系統(tǒng)的測量數(shù)據(jù)。本文對新型提升后備保護系統(tǒng)的電路設(shè)計和軟件開發(fā)進行了詳細說明,并對絕對位置行程監(jiān)測的方案進行了可行性模擬測試,實驗結(jié)果表明:所設(shè)計開發(fā)的提升機后備保護系統(tǒng)的絕對位置行程監(jiān)測方案可行,整體測量誤差小于0.01%,在容器行程的起始和停止段測量精度可達0.05m,該方案適用于現(xiàn)有大多數(shù)礦井提升機系統(tǒng)。新型后備保護系統(tǒng)的設(shè)計理念和行程監(jiān)測方案對改善提升機安全保護和提高電控系統(tǒng)自動化程度方面具有一定的實用性和先進性。
[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.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD534

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