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摘 要 G400/900-WD 型采煤機(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(jí)圓柱齒輪和二級(jí)行星齒輪減速器減速后， 由行星架輸出，通過(guò)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(lái)回行走，同時(shí)制動(dòng)軸輸出軸通過(guò)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。 G400/900-WD 型采煤機(jī)，操作方便，可靠性高，事故率低，開(kāi)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 G400/900-WD coal mining machine is more than one kind of motor- driven, crosswise arrangement alternating current hauling coal mining machine. This machine power is big, the multi-electrical machinery crosswise arrangement, the complete machine structure is compact, uses the exchange frequency conversion velocity modulation system, the frequency conversion velocity modulation uses aircraft-borne -like. Cuts the electrical machinery, the pulling motor and so on main part to be possible to extract from the worked-out section, easy to replace, facilitates the service. The pulling motor outputs torque decelerates after the third-level cylindrical gears and the second-level planet gear reduction gear, by the planet carrier outputs, with walks lining on the feet and palms of buddha meshing through the driving gear, by walks again round and on working surface scraper conveyer's rack rail meshing causes the coal mining machine back and forth to walk, simultaneously the brake spindle output shaft is connected through the key and the brake, realizes the electricity hauling department brake. About the hauling department, the middle electrically controlled box's joint stud, the positioning pin, the rocking shaft sells the axis four groups with about electricity hauling department hinge, these installments join coal mining machine various major assemblies a whole, plays the fastening and the connection role. The hauling department with walks to make a body, caused the fuselage overall size to be compact, reduced the fuselage width. The G400/900-WD coal mining machine, the ease of operation, the reliability is high, the accident rate is low, the starting efficiency is high, may satisfy the high production highly effective working surface the need. Key word: The coal mining machine； the hauling department； walks； Planet gear 目 錄 1 概述 ..........................................................................................................................1 1.1 采煤機(jī)的發(fā)展概況 ..............................................................................................1 1.2 國(guó)際上電牽引采煤機(jī)的技術(shù)發(fā)展?fàn)顩r ..............................................................1 1.3 國(guó)內(nèi)電牽引采煤機(jī)的發(fā)展?fàn)顩r ..........................................................................3 1.3.1. 20 世紀(jì) 70 年代是我國(guó)綜合機(jī)械化采煤起步階段 ....................................3 1.3.2 .20 世紀(jì) 80 年代是我國(guó)采煤機(jī)發(fā)展的興旺時(shí)期 ........................................4 1.3.3 .20 世紀(jì) 90 年代至今是我國(guó)電牽引采煤機(jī)發(fā)展的時(shí)代 ............................5 1.4 采煤機(jī)的發(fā)展趨勢(shì) ..............................................................................................7 1.5 采煤機(jī)類型 ..........................................................................................................7 1.6 采煤機(jī)的組成 ....................................................................................................10 1.7 電牽引采煤機(jī)的優(yōu)點(diǎn) ........................................................................................12 2 牽引部的設(shè)計(jì) ........................................................................................................14 2.1 牽引機(jī)構(gòu)傳動(dòng)系統(tǒng) ............................................................................................14 2.1.1 主要技術(shù)參數(shù) ..............................................................................................14 2.1.2 電動(dòng)機(jī)的選擇 ..............................................................................................14 2.1.3 傳動(dòng)比的分配 ..............................................................................................15 2.2 牽引部傳動(dòng)計(jì)算 ................................................................................................17 2.2.1 各級(jí)傳動(dòng)轉(zhuǎn)速、功率、轉(zhuǎn)矩 ......................................................................17 2.3 牽引部齒輪設(shè)計(jì)計(jì)算 ........................................................................................18 2.3.1 齒輪 1 和惰輪 2 的設(shè)計(jì)及強(qiáng)度效核 ..........................................................18 2.3.2 齒輪 3 和惰輪 4 的設(shè)計(jì)及強(qiáng)度效核 ..........................................................24 2.3.3 齒輪 5 和惰輪 6 的設(shè)計(jì)及強(qiáng)度效核 ..........................................................30 2.4 牽引部行星機(jī)構(gòu)的設(shè)計(jì)計(jì)算 ............................................................................35 2.4.1 行星齒輪的計(jì)算 ..........................................................................................37 2.4.2 行星輪嚙合要素驗(yàn)算 ..................................................................................49 3 軸的設(shè)計(jì)及校核 ....................................................................................................53 3.1 確定軸的最小直徑 ............................................................................................53 3.2 軸的校核 ............................................................................................................56 3.3 花鍵的強(qiáng)度校核 ................................................................................................63 3.4 軸承的校核 ........................................................................................................65 4 采煤機(jī)的使用和維護(hù) ............................................................................................67 4.1 采煤機(jī)的維護(hù) ....................................................................................................67 4.2 采煤機(jī)軸承的維護(hù)及漏油的防治 ....................................................................69 4.3 煤礦機(jī)械傳動(dòng)齒輪失效的改進(jìn)途徑 ................................................................71 5 機(jī)械密封 ................................................................................................................78 參考文獻(xiàn) ...................................................................................................................82 英文原文 ...................................................................................................................83 中文譯文 ...................................................................................................................91 致謝 ...........................................................................................................................98