本文選題：帶式輸送機 + 液壓張緊裝置　； 參考：《蘭州理工大學(xué)》2017年碩士論文

【摘要】：我國近年來在采礦工藝和技術(shù)方面都得到了長足的發(fā)展,同時帶動了礦山開采行業(yè)的迅猛進步,隨著井下巷到挖掘越來越深,傳統(tǒng)的簡單機械裝置的運輸機已很難滿足當(dāng)前的礦山運輸需求,為了滿足礦山開采的生產(chǎn)需求,需要對帶式輸送機的張緊裝置進行革新。而液壓張緊裝置具有很好的自動控制張緊力的能力,并且控制方便,有很好的抗污染性能和很好的安全性能,液壓張緊系統(tǒng)的工作分為三個過程:?啟動過程;?穩(wěn)定過程;?制動過程。由于傳輸帶具有塑性變形和液壓系統(tǒng)內(nèi)液壓油的泄露,導(dǎo)致張緊力難以始終維持在某一定值,這對輸送機的正常工作帶來一定的不便與影響,所以設(shè)計一個控制器,使張緊力始終保持恒定,對帶式輸送機的正常工作具有重要意義。本文利用AMESim和MATLAB軟件研究帶式輸送機的液壓張緊系統(tǒng),設(shè)計PID控制器使得張緊力按給定值變化。在軟件中盡可能模擬帶式輸送機的實際工況,直觀地呈現(xiàn)液壓張緊機構(gòu)的運行狀況,從而方便對帶式輸送機液壓張緊裝置的設(shè)計以及革新,提高張緊裝置的工作性能,從而有效提高我國礦山開采生產(chǎn)效率。本文主要對輸送機液壓系統(tǒng)做了以下研究:1)對傳輸機的整個工作運行過程進行跟蹤監(jiān)測,根據(jù)監(jiān)測結(jié)果,結(jié)合動力學(xué)理論建立系統(tǒng)模型。從建立的各項系統(tǒng)模型中進行對比分析可知,Kelvin模型在展現(xiàn)傳輸機傳送帶的動力特征時,更加準確且全面。2)本文在深入的剖析了傳輸機液壓張緊裝置的工作原理以及工作步驟以后,對傳輸機的相關(guān)運行參數(shù)進行了數(shù)據(jù)統(tǒng)計分析,找出了傳輸機液壓張緊裝置中存在的問題,對建立的模型提出了相應(yīng)的修改方案。3)總結(jié)了傳輸機液壓張緊裝置運行過程中存在的問題,對該液壓張緊裝置的工作流程以及控制過程進行優(yōu)化,使得傳輸機的工作運行更加穩(wěn)定。4)通過對液壓張緊裝置的仿真,得到輸送機的張緊力在受到外界干擾作用下的響應(yīng)曲線圖。對比優(yōu)化前后的曲線圖,優(yōu)化后的液壓張緊系統(tǒng)可以更快的對張緊力干擾做出響應(yīng)。5)針對張緊液壓系統(tǒng)中張緊力難以維持在某一特定值這一問題,設(shè)計了PID控制器,重點研究了張緊力液壓系統(tǒng)在進入穩(wěn)定階段后的張緊力跟隨情況。仿真結(jié)果表明,張緊力在階躍和斜坡信號作用下都可以較為精確的完成對給定值的跟隨并維持在給定值周圍。PID控制效果理想。
[Abstract]:In recent years, our country has made great progress in mining technology and technology, at the same time driving the rapid progress of mining industry, with the underground roadway to dig deeper and deeper, The traditional conveyer of simple mechanical device has been difficult to meet the current demand of mine transportation. In order to meet the production demand of mining, it is necessary to innovate the tensioning device of belt conveyor. The hydraulic tensioning device has the ability to automatically control the tension force, and the control is convenient, has good anti-pollution performance and good safety performance, the hydraulic tension system work is divided into three processes:? Start process? Stabilization process? Braking process. Due to plastic deformation of transmission belt and leakage of hydraulic oil in hydraulic system, it is difficult to maintain the tensioning force at a certain fixed value all the time, which brings some inconvenience and influence to the normal work of conveyer, so a controller is designed. The tensioning force is always constant, which is of great significance to the normal work of belt conveyor. In this paper, the hydraulic tension system of belt conveyor is studied by using AMESim and MATLAB software, and the PID controller is designed to make the tension change according to the given value. In the software, the actual working conditions of belt conveyor are simulated as much as possible, and the running condition of hydraulic tensioning mechanism is presented intuitively, which facilitates the design and innovation of hydraulic tensioning device of belt conveyor, and improves the working performance of the tensioning device. In order to effectively improve the efficiency of mining production in China. In this paper, the following research is done on the hydraulic system of conveyer: 1) tracking and monitoring the whole working process of the conveyer. According to the monitoring results and combining with the dynamic theory, the system model is established. From the comparison and analysis of the established system models, it can be seen that the Kelvin model shows the dynamic characteristics of the conveyor belt. More accurate and comprehensive. 2) after deeply analyzing the working principle and working steps of the hydraulic tensioning device of the transmission machine, this paper carries on the data statistical analysis to the related operation parameter of the transmission machine. The problems existing in the hydraulic tensioning device of the transmission machine are found out, and the corresponding modification scheme. 3) the problems existing in the operation process of the hydraulic tensioning device of the transmission machine are summarized. The working flow and control process of the hydraulic tensioning device are optimized to make the work of the transmission machine more stable. 4) through the simulation of the hydraulic tensioning device, The response curve of the tension force of the conveyer under the action of external disturbance is obtained. Compared with the curves before and after optimization, the optimized hydraulic tension system can respond to the tension disturbance more quickly. 5) aiming at the problem that the tension force is difficult to maintain at a certain value in the tension hydraulic system, a PID controller is designed. This paper mainly studies the tensioning force following of the hydraulic system after entering the stable stage. The simulation results show that the tensioning force under the action of step and slope signals can accurately follow the given value and maintain the ideal effect of .PID control around the given value.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD528.1

【參考文獻】

相關(guān)期刊論文 前10條

1 田宜水;付成果;吳永龍;趙立欣;姚宗路;孟海波;;農(nóng)作物秸稈皮帶輸送量的影響因素分析[J];農(nóng)業(yè)工程學(xué)報;2014年14期

2 龐曉旭;寇子明;李軍霞;;基于彈性懸鏈線理論的輥間輸送帶垂度特性的研究[J];煤炭學(xué)報;2014年07期

3 徐萬鑫;叢銘輝;;斗輪堆取料機帶式輸送機液壓張緊裝置的正確選擇及應(yīng)用[J];起重運輸機械;2014年05期

4 郭耀華;;帶式輸送機全自動液壓張緊裝置應(yīng)用與研究[J];煤礦機械;2014年05期

5 卜必明;;頭部伸縮帶式輸送機液壓張緊裝置研究[J];燒結(jié)球團;2014年01期

6 王學(xué)文;楊兆建;丁華;段雷;石瑞敏;李懷文;;煤礦裝備云制造資源服務(wù)平臺研究與應(yīng)用[J];煤炭學(xué)報;2013年10期

7 李軍霞;寇子明;俞晶;;下運帶式輸送機液壓調(diào)速軟制動器特性分析及試驗研究[J];煤炭學(xué)報;2013年09期

8 董立紅;趙鵬兵;;帶式輸送機拉緊裝置張力的灰色預(yù)測PID控制[J];煤炭學(xué)報;2013年02期

9 董芩華;段誠;孟云;石哲敏;范迅;;水墊帶式輸送機水墊壓力場的計算模擬與實驗研究[J];煤炭學(xué)報;2012年11期

10 何柏巖;孫陽輝;聶銳;李國平;;礦用刮板輸送機圓環(huán)鏈傳動系統(tǒng)動力學(xué)行為研究[J];機械工程學(xué)報;2012年17期

相關(guān)碩士學(xué)位論文 前1條

1 寧賽;電液比例泵控馬達速度控制策略研究[D];北京理工大學(xué);2015年

，

本文編號：1981272