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摘 要 滾筒式采煤機(jī)是一種多電機(jī)驅(qū)動(dòng)，橫向布置的交流電牽引采煤機(jī)。該 機(jī)功率大，多電機(jī)橫向布置，整機(jī)結(jié)構(gòu)緊湊，采用交流變頻調(diào)速系統(tǒng)，變 頻調(diào)速采用機(jī)載式。截割電機(jī)、牽引電機(jī)等主要元部件均可從采空區(qū)抽出， 容易更換，方便維修。 牽引電機(jī)輸出的轉(zhuǎn)矩經(jīng)三級圓柱齒輪和二級行星齒輪減速器減速后， 由行星架輸出，通過驅(qū)動(dòng)輪與行走輪相嚙合，再由行走輪與工作面刮板輸 送機(jī)上的齒軌嚙合使采煤機(jī)來回行走，同時(shí)制動(dòng)軸輸出軸通過鍵與制動(dòng)器 相連，實(shí)現(xiàn)電牽引部的制動(dòng)。 左右牽引部，中間電控箱的聯(lián)結(jié)螺柱，定位銷，搖臂與左右電牽引部 鉸接銷軸四組，這些裝置將采煤機(jī)各大部件聯(lián)接成一個(gè)整體，起到緊固及 連接的作用。牽引部與行走部做成一體，使機(jī)身整體尺寸緊湊，縮小了機(jī) 身寬度。 滾筒式采煤機(jī)，操作方便，可靠性高，事故率低，開機(jī)效率高，可滿 足高產(chǎn)高效工作面的需要。 關(guān)鍵詞：采煤機(jī)；牽引部；行走部；行星齒輪 Abstract The drum type shearer is a kind of multi motor drive, and the transverse layout of the alternating current traction shearer. The machine has the advantages of high power, multi motor horizontal layout, compact structure, and the use of AC variable frequency speed regulation system, and the frequency conversion speed control system. Cutting motor, traction motor and other major components can be extracted from the mined out area, easy to replace, easy maintenance. Traction motor output torque by three cylindrical gear and two planetary gear reducer, by the planetary frame output, through the driving wheel and the walking wheel, and then by the walking wheel and the working face scraper conveyor on the track to make the coal mining machine back and forth to walk, and the brake shaft output shaft through the key and the brake connected to realize the electric traction brake. The left and right side of the traction part, the connecting pin of the intermediate electric control box, the positioning pin, the rocker arm and the left arm of the left and right electric traction parts, these devices are connected to the main parts of the coal mining machine into a whole, which plays the role of fastening and connecting. Traction and walking part of the whole body, so that the overall size of the body compact, narrowing the width of the body. Roller type coal mining machine, the operation is convenient, the reliability is high, the accident rate is low, the starting efficiency is high, can satisfy the need of high efficiency and high efficiency. Key words: coal mining machine; traction; wheel; planetary gear 目 錄 摘 要 ...............................................................................................................................................1 ABSTRACT ......................................................................................................................................2 目 錄 .................................................................................................................................................3 1 概述 ................................................................................................................................................5 1.1 采煤機(jī)的發(fā)展概況 .................................................................................................................5 1.2 國際上電牽引采煤機(jī)的技術(shù)發(fā)展?fàn)顩r ................................................................................5 1.3 國內(nèi)電牽引采煤機(jī)的發(fā)展?fàn)顩r .............................................................................................7 1.3.1. 20 世紀(jì) 70 年代是我國綜合機(jī)械化采煤起步階段 ......................................................7 1.3.2 20 世紀(jì) 80 年代是我國采煤機(jī)發(fā)展的興旺時(shí)期 ...........................................................8 1.3.3 20 世紀(jì) 90 年代至今是我國電牽引采煤機(jī)發(fā)展的時(shí)代 ...............................................9 1.4 采煤機(jī)的發(fā)展趨勢 ..............................................................................................................11 1.5 采煤機(jī)類型 ...........................................................................................................................12 1.6 采煤機(jī)的組成 ......................................................................................................................15 1.7 電牽引采煤機(jī)的優(yōu)點(diǎn) ...........................................................................................................16 2 牽引部的設(shè)計(jì) ..............................................................................................................................18 2.1 牽引機(jī)構(gòu)傳動(dòng)系統(tǒng) ...............................................................................................................18 2.1.1 主要技術(shù)參數(shù) ................................................................................................................18 2.1.2 電動(dòng)機(jī)的選擇 ................................................................................................................19 2.1.3 傳動(dòng)比的分配 ................................................................................................................19 2.2 牽引部傳動(dòng)計(jì)算 ...................................................................................................................21 2.2.1 各級傳動(dòng)轉(zhuǎn)速、功率、轉(zhuǎn)矩 ........................................................................................21 2.3 牽引部齒輪設(shè)計(jì)計(jì)算 ...........................................................................................................23 2.3.1 齒輪 1 和惰輪 2 的設(shè)計(jì)及強(qiáng)度效核 ............................................................................23 2.3.2 齒輪 3 和惰輪 4 的設(shè)計(jì)及強(qiáng)度效核 ............................................................................28 2.3.3 齒輪 5 和惰輪 6 的設(shè)計(jì)及強(qiáng)度效核 ............................................................................34 2.4 牽引部行星機(jī)構(gòu)的設(shè)計(jì)計(jì)算 ...............................................................................................40 2.4.1 行星齒輪的計(jì)算 ............................................................................................................41 2.4.2 行星輪嚙合要素驗(yàn)算 ..................................................................................................53 3 軸的設(shè)計(jì)及校核 .........................................................................................................................58 3.1 確定軸的最小直徑 ..............................................................................................................58 3.2 軸的校核 ...............................................................................................................................61 3.3 花鍵的強(qiáng)度校核 ...................................................................................................................68 3.4 軸承的校核 ...........................................................................................................................70 4 采煤機(jī)的使用和維護(hù) .................................................................................................................72 4.1 采煤機(jī)的維護(hù) .......................................................................................................................72 4.2 采煤機(jī)軸承的維護(hù)及漏油的防治 .......................................................................................74 4.3 煤礦機(jī)械傳動(dòng)齒輪失效的改進(jìn)途徑 ...................................................................................77 5 機(jī)械密封 .....................................................................................................................................84 參考文獻(xiàn) .........................................................................................................................................88 英文原文 .........................................................................................................................................89 中文譯文 .........................................................................................................................................97 致 謝 .............................................................................................................................................104