本文選題：礦井提升機 + 恒減速制動系統(tǒng)　； 參考：《太原理工大學(xué)》2017年碩士論文

【摘要】：煤礦安全生產(chǎn)不僅關(guān)系國民經(jīng)濟的發(fā)展,更直接關(guān)系煤礦工人的生命安全,因此確保煤礦安全生產(chǎn)對國家和社會發(fā)展至關(guān)重要。我國絕大部分煤礦屬于井工礦,通過礦井提升機輸送人員、設(shè)備和礦石。調(diào)查顯示,由提升機故障造成的煤礦事故僅次于落頂和瓦斯事故,從而確保提升機安全運行對保障煤礦安全生產(chǎn)至關(guān)重要。緊急制動時由于鋼絲繩的柔性影響會使提升系統(tǒng)產(chǎn)生沖擊和振動,隨著煤礦大型化,提升機的提升深度、提升速度和提升載荷均不斷增加,使得沖擊和振動變得更加劇烈,這將導(dǎo)致鋼絲繩打滑以及主軸裝置等部件的機械結(jié)構(gòu)受損,甚至造成鋼絲繩斷裂的重大事故。目前,主要通過恒減速制動系統(tǒng)來緩減提升機在緊急制動時產(chǎn)生的沖擊和振動。因此對大型礦用提升機恒減速制動電液控制系統(tǒng)開展研究對煤礦安全生產(chǎn)具有重要意義。本文分析了礦用提升機制動原理,建立了鋼絲繩模型,利用SimulationX仿真軟件對提升機恒減速制動進行了三維聯(lián)合仿真分析;對三通比例減壓閥的性能進行研究,并用三通比例減壓閥代替原恒減速制動系統(tǒng)中的電液比例方向閥,提高恒減速制動系統(tǒng)的可靠性。論文主要分為以下幾部分:第一章,闡述了課題研究的背景及意義,通過參考相關(guān)文獻和已有的研究成果,介紹了恒減速制動系統(tǒng)的研究現(xiàn)狀和三通比例減壓閥的研究現(xiàn)狀,總結(jié)了鋼絲繩的建模原理。第二章,闡述了提升機的構(gòu)成和分類,建立了提升機制動過程的數(shù)學(xué)模型,明確了影響恒減速制動性能的因素,并分析了提升機上升與下降的制動過程。第三章,介紹了提升機恒減速制動電液控制系統(tǒng)制動原理,對電液比例方向閥進行了參數(shù)辨識;在SimulationX仿真軟件中建立了恒減速制動系統(tǒng)仿真模型。第四章,對鋼絲繩的建模原理進行分析,并對SimulationX仿真軟件中鋼絲繩模型的準(zhǔn)確性進行分析;建立了提升機三維聯(lián)合仿真模型;通過積分分離PID控制算法改善恒減速制動性能。第五章,建立了直動式三通比例減壓閥的數(shù)學(xué)模型,并在仿真軟件SimulationX中建立了閥的仿真模型;分析了閥的預(yù)開口量對閥性能的影響;引入閥芯速度反饋和壓力閉環(huán)改善減壓閥的性能,并分析了采用三通比例減壓閥的恒減速制動系統(tǒng)的性能。第六章,對本文礦井提升機的恒減速制動電液控制系統(tǒng)特性研究工作進行了總結(jié),并對工作中的不足和進一步需要的研究工作提出了展望。研究結(jié)果表明:鋼絲繩柔性影響是造成提升機速度波動的重要原因;通過壓力閉環(huán)改善了三通比例減壓閥的控制特性,并提高了恒減速制動系統(tǒng)的可靠性;通過積分分離PID控制算法可以改善某一工況下的恒減速制動性能。
[Abstract]:Coal mine safety production is not only related to the development of national economy, but also directly related to the safety of coal miners. Therefore, it is very important to ensure the safety of coal mine production for national and social development. The vast majority of coal mines in China belong to well-mining, through the mine hoist to transport personnel, equipment and ore. The investigation shows that the coal mine accident caused by hoist fault is second only to the falling roof and gas accident, thus ensuring the safe operation of the hoist is very important to ensure the safety of coal mine production. During emergency braking, the impact and vibration of the lifting system will be caused by the flexible influence of the wire rope. With the large-scale coal mine, the lifting depth, the lifting speed and the lifting load of the hoist are all increasing, which makes the shock and vibration become more intense. This will cause the mechanical structure of the steel wire rope slip and the main shaft device to be damaged, and even cause the serious accident of the wire rope breaking. At present, the impact and vibration of hoist during emergency braking are mainly mitigated by constant deceleration braking system. Therefore, it is of great significance to study the electro-hydraulic control system of constant deceleration braking for large mine hoist. In this paper, the braking principle of mine hoist is analyzed, the wire rope model is established, the three-dimensional joint simulation analysis of constant deceleration braking of hoist is carried out by using SimulationX simulation software, and the performance of three-way proportional pressure reducing valve is studied. The three-way proportional pressure reducing valve is used to replace the electro-hydraulic proportional directional valve in the original constant deceleration braking system to improve the reliability of the constant deceleration braking system. The thesis is divided into the following parts: the first chapter describes the background and significance of the research, through reference to relevant literature and existing research results, introduces the research status of the constant deceleration braking system and the research status of the three-way proportional pressure reducing valve. The modeling principle of wire rope is summarized. In the second chapter, the composition and classification of hoist are expounded, the mathematical model of braking process of hoist is established, the factors influencing the braking performance of constant deceleration are defined, and the braking process of hoist rising and falling is analyzed. In the third chapter, the braking principle of the electro-hydraulic control system of hoist constant deceleration braking system is introduced, the parameter identification of electro-hydraulic proportional directional valve is carried out, and the simulation model of constant deceleration braking system is established in SimulationX simulation software. In the fourth chapter, the modeling principle of wire rope is analyzed, the accuracy of wire rope model in SimulationX simulation software is analyzed, the three-dimensional joint simulation model of hoist is established, and the braking performance of constant deceleration is improved by integral separation PID control algorithm. In the fifth chapter, the mathematical model of the direct-acting three-way proportional pressure reducing valve is established, and the simulation model of the valve is established in the simulation software SimulationX, and the effect of the pre-opening quantity of the valve on the valve performance is analyzed. The valve core speed feedback and pressure closed loop are introduced to improve the performance of the valve and the performance of the constant deceleration braking system using the three-way proportional pressure reducing valve is analyzed. In the sixth chapter, the research work of constant deceleration braking electro-hydraulic control system of mine hoist is summarized, and the shortage of the work and the further research work are prospected. The results show that the influence of wire rope flexibility is an important reason for the hoist speed fluctuation, the control characteristics of the three-way proportional pressure reducing valve are improved through the pressure close-loop, and the reliability of the constant deceleration braking system is improved. The performance of constant deceleration braking can be improved by integral separation PID control algorithm.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD534.5

【參考文獻】

相關(guān)期刊論文 前10條

1 楊玉濤;;提升機恒減速制動過程仿真分析及控制系統(tǒng)設(shè)計[J];山東煤炭科技;2016年10期

2 朱穩(wěn)j;王坤;;“一帶一路”對煤炭發(fā)展的影響與機遇[J];中國煤炭工業(yè);2016年04期

3 黃家海;郭曉霞;權(quán)龍;趙瑞峰;黎文勇;麻慧君;;軟硬件冗余礦井提升機恒減速制動系統(tǒng)研制[J];中國機械工程;2016年04期

4 王黨飛;;冷軋機組液壓AGC系統(tǒng)的優(yōu)化設(shè)計[J];機床與液壓;2015年22期

5 郭永波;張德坤;王大剛;;摩擦式提升機動態(tài)摩擦弧的理論建模及其變化規(guī)律[J];煤炭學(xué)報;2015年09期

6 吳娟;寇子明;劉玉輝;吳國雄;;獨立鋼絲繩芯鋼絲繩應(yīng)力及變形分布[J];煤炭學(xué)報;2014年11期

7 段小龍;胡軍科;方健康;彭克立;;鋼軌打磨車打磨力波動抑制方法研究[J];鐵道科學(xué)與工程學(xué)報;2014年02期

8 麻慧君;張國新;權(quán)龍;王松峰;;基于PID自整定控制恒減速制動系統(tǒng)的研究[J];煤礦機械;2013年07期

9 湯萬文;胡軍科;周創(chuàng)輝;;鋼軌打磨車恒壓加載系統(tǒng)壓力波動分析[J];鐵道科學(xué)與工程學(xué)報;2013年03期

10 盧洪志;;提升機新型液壓制動系統(tǒng)原理分析[J];金屬材料與冶金工程;2012年S1期

相關(guān)博士學(xué)位論文 前1條

1 雷勇濤;基于神經(jīng)網(wǎng)絡(luò)的提升機制動系統(tǒng)故障診斷技術(shù)與方法[D];太原理工大學(xué);2010年

相關(guān)碩士學(xué)位論文 前5條

1 趙強;提升機制動系統(tǒng)動態(tài)特性仿真及試驗研究[D];太原理工大學(xué);2016年

2 陶林裕;礦井提升機盤式制動器監(jiān)控系統(tǒng)的研究[D];吉林大學(xué);2011年

3 呂振軍;插裝式三通比例減壓閥研究[D];浙江大學(xué);2011年

4 姚佳;電液比例減壓閥頻響特性仿真與試驗研究[D];湖南科技大學(xué);2009年

5 劉建永;礦井提升機監(jiān)控系統(tǒng)的分析與設(shè)計[D];中國地質(zhì)大學(xué)（北京）;2009年

，

本文編號：1985149