普通帶式輸送機的設(shè)計
3.9萬字 57頁



摘要 本文在參考常規(guī)下運帶式輸送機設(shè)計方法的基礎(chǔ)上，分析了常見驅(qū)動方式和制動方式用于長運距、大運量下運帶式輸送機上的優(yōu)缺點，提出該運輸機可采用的驅(qū)動和制動方式；分析了常見軟起動裝置及其選型方法，歸納總結(jié)出長運距、大運量變坡輸送下運帶式輸送機設(shè)計中的關(guān)鍵問題和可靠驅(qū)動方案和制動方式優(yōu)化組合的可行方案；通過常規(guī)設(shè)計計算，提出了合理確定張緊位置、張緊方式及張緊力大小的方法；對驅(qū)動裝置及各主要部件進(jìn)行了選型并校核。
長距離變坡下運帶式輸送機運行工況復(fù)雜，在設(shè)計方面需考慮各種可能的工況，并計算最危險工況下輸送機的各項參數(shù)，同時為保證運行過程中輸送機各組成部分能適應(yīng)載荷及工況的變化需將拉緊力統(tǒng)一，然后重新計算各工況下輸送機參數(shù)，最終確定整機參數(shù)。
本論文對長運距、大運量變坡下運帶式輸送機，綜合考慮各方面的因素，采用合理的驅(qū)動方案、制動方式和軟啟動裝置組合，有效保證長運距、大運量變坡下運帶式輸送機的可靠運行。
關(guān)鍵詞：帶式輸送機 下運 長距離 變坡







STUDY ON COMMON TRANSPORTING BELT-CONVEYER
ABSTRACT Based on the design method for the conventional Downwards Transporting Belt-Conveyer (DTBC), the common used driving and braking devices were analyzed in the condition of long-distance and heavy-capacity. The driving and braking types were presented for this kind of conveyer. The soft-starting devices and their type-selection were analyzed. The key points were summarized for designing the long-distance, heavy-capacity DTBC used in varying slope environment. The reliable combined scheme of driving and braking units was put forward. The methods for determining the tensioning location, type and the amount of tensioning force based on the results of conventional calculations. The criterion was summarized for selecting driving device and the main components in the conveyer.
Due to the complicated operational condition of long-distance and varying slope DTBC, it is necessary to consider every kind of possible working conditions during its design and calculate the parameters in the most dangerous condition. At the same time, it is necessary to uniform the tensioning force in order to suit the variations of the load and condition. Then the conveyer's parameters should be re-calculated under various conditions and the parameters should be determined finally.
The research of this paper shows that by using reasonable combination of driving scheme, braking mode and soft-starting device and by determining the schemes for braking and soft-starting from the dynamical analysis and simulation, the reliable operation could be guaranteed for the long-distance, heavy-capacity and varying slope DTBC.
Key word Belt-conveyer, Downwards transportation, long-distance, Varying slope

目 錄
1 緒論………………………………………………………………………………1
2.輸送機的發(fā)展與現(xiàn)狀……………………………………………………………2
2.1國內(nèi)外帶式輸送機的發(fā)展與現(xiàn)狀 ……………………………………………2
2.1.1國外煤礦用帶式輸送機技術(shù)現(xiàn)狀和發(fā)展趨勢 ……………………………2
2.1.2國內(nèi)煤礦用帶式輸送機的技術(shù)現(xiàn)狀及存在的問題 ………………………3
2.1.3我國煤礦用帶式輸送機的發(fā)展 ……………………………………………3
2.2選題背景 ………………………………………………………………………4
2.2.1主要技術(shù)參數(shù) ………………………………………………………………4
2.2.2線路參數(shù) ……………………………………………………………………5
2.2.3物料特性 ……………………………………………………………………5
2.2.4帶式輸送機工作環(huán)境 ………………………………………………………5
2.3本課題的研究內(nèi)容 ……………………………………………………………6
2.3.1長運距、大運量下運帶式輸送機關(guān)鍵技術(shù)分析研究 ……………………6
2.3.2帶式輸送機的設(shè)計及驅(qū)動、制動方案的分析 ……………………………6
3長距離、大運量下運帶式輸送機關(guān)鍵技術(shù)的分析 ……………………………7
3.1下運帶式輸送機基本組成 ……………………………………………………7
3.2驅(qū)動方案的確定 ………………………………………………………………7
3.3帶式輸送機制動技術(shù) …………………………………………………………8
4 長距離大運量下運帶式輸送機的設(shè)計…………………………………………11
4.1 帶式輸送機原始參數(shù)…………………………………………………………11
4.2 帶式輸送機的設(shè)計計算………………………………………………………11
4.2.1輸送帶運行速度的選擇……………………………………………………11
4.2.2輸送帶寬度計算……………………………………………………………12
4.2.3初選輸送帶…………………………………………………………………12
4.3輸送機布置形式及基本參數(shù)的確定…………………………………………13
4.3.1輸送帶布置形式……………………………………………………………13
4.3.2輸送機基本參數(shù)的確定……………………………………………………13
4.4線路阻力的計算………………………………………………………………14
4.5輸送帶張力的計算……………………………………………………………15
4.5.1張力計算時各種運行工況的討論…………………………………………16
4.5.2 最大發(fā)電狀態(tài)下張力計算 …………………………………………………16
4.5.3 最大電動狀態(tài)下張力計算 …………………………………………………19
4.5.4滿載狀態(tài)下張力計算………………………………………………………20
4.5.5三種工況綜合分析張力計算………………………………………………21
4.5.6電機數(shù)量與配比的選擇……………………………………………………24
4.6 滾筒的選擇與減速器的選擇…………………………………………………24
4.6.1傳動滾筒直徑的選擇………………………………………………………24
4.6.2改向滾筒直徑選擇…………………………………………………………24
4.6.3減速器的選型………………………………………………………………24
4.7 制動器裝置的選擇……………………………………………………………25
4.7.1目前主要的制動裝置原理與性能…………………………………………25
4.7.2制動器的選用原則…………………………………………………………27
4.7.3制動器的選擇………………………………………………………………27
4.8軟起動裝置的選擇……………………………………………………………28
4.8.1 目前主要的軟起動裝置原理與性能………………………………………28
4.8.2 軟起動裝置的選用…………………………………………………………31
4.9拉緊裝置………………………………………………………………………31
4.9.1張緊位置的確定……………………………………………………………32
4.9.2拉緊力及拉緊形成的計算…………………………………………………32
4.9.3拉緊裝置選擇………………………………………………………………32
5 結(jié)論………………………………………………………………………………34
致謝 ………………………………………………………………………………35
參考文獻(xiàn) …………………………………………………………………………36
外文文獻(xiàn)原文
譯文



參 考 文 獻(xiàn)
[1] 趙玉文，李云海．帶式輸送機的現(xiàn)狀線裝與發(fā)展趨勢．煤礦機械，2004年第4期：1~3
[2] 于學(xué)謙．礦山運輸機械，徐州：中國礦業(yè)大學(xué)出版社，1989年
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