【正文】 s machine munication interface, break down diagnosis sketch to show and store, wireless control from a distance, lead functions such as control and protection etc.. Japan1987The year continuously develops to succeed various series alternate current of the MCLEDR which mow electrical engineering to lengthways set outs to lead to adopt coal machine behind and developped to cut many electrical engineering alternate currents of mow the electrical engineering horizontal decorations to lead to adopt coal machine again for the last few the coal machine has tiny machine work condition a monitor and breaks down diagnosis system, can the numerical manifestation lead speed, roller position, stay a bottom coal thickness, electrical engineering load and everywhere temperature, have wireless remote control, and can add infrared ray shoot the machine manipulate a liquid to press a support. Poland the KOMAG mine for minerals a mechanization research centerPoland continuously developped KSE in developping successful KSE a 344 thin coal seam alternate currents with Chinese cooperation to lead foundation of adopt the coal machine a 360, KSE a 700, KSE one 800 RWs/2 BPs, KSE a 535 Ss/2 BPs, KSE1000 type etc. alternate current lead to adopt coal the coal machine cuts deeply from 630171111 raise 8001000 mms. RussiaThe former Soviet Union 7039。s developping successfully a 1 ls many electrical engineerings is successfullyhorizontal to arrange the direct current after lead adopt coal machine continuously developped a 2 IS ISs7s again etc. type many electrical engineerings are horizontal to arrange the direct current lead to adopt coal adopt the coal machine total power one 940 kWs, lead the speed 30 ms/ a strong dint sells a track to have no chain to lead system, the enlargement chain track stanza is apart from with width, and adopt a forging to sell a row。s advantage be quickly expanded an usage.1 The foreign electricity leads long to adopt the coal machine development general situation Eickhof panyAfter 1976 developped successful direct current to lead to adopt coal machine, it was basic to stopped a liquid to press to lead a development research of adopt the coal machine and continuously developped various form electricities to lead to adopt coal SL series that the age develop is horizontal to arrange the alternate current lead to adopt coal machine, cut to mow electrical engineering to arrange in shaking them, the S type electricity leads to adopt coal machine to pack machine power to reach to one 580 kWs, biggest lead dint 998 type electricity leads to adopt coal machine to always pack machine power one 018 kWs, the adoption double change once the Pin machine drag along one system, biggest lead speed to reach to ms/rai system the system have to hand over with each other a type a person the machine dialogue, equipments healthily forecasts, the online control, data deliver etc. function. :British LongAirdox panyAfter 1984 developped success the first set cut to mow electrical engineering to arrange at many decorations with horizontal electrical engineerings of shake the arms get Electra550 type direct current led to adopt coal machine, at its foundation top enlargement power, and then develop into an Electra1000 type direct current to lead to adopt coal , on the model foundation of the Electra series, enlargement power, the improvement controls system, developped EL series alternate current to lead to adopt coal machine and the main model contains EL600, EL1000, EL1500, EL3000 EL series model up equip of the Impact integrate protection and supervise and control system and have burden to control, machine supervision, adopt coal machine to automatically position, automatically key up, district control, the intelligence turn safe catena and random break down diagnosis, data to deliver etc. function. JOY pany207039。參考文獻(xiàn)[1] 王洪欣、李 木、劉秉忠，機(jī)械設(shè)計(jì)工程學(xué)［Ⅰ］，中國(guó)礦業(yè)大學(xué)出版社，2001[2] 唐大放、馮曉寧、楊現(xiàn)卿，機(jī)械設(shè)計(jì)工程學(xué)［Ⅱ］，中國(guó)礦業(yè)大學(xué)出版社，2001[3] 李昌熙、沈立山、高 榮，采煤機(jī)，中國(guó)礦業(yè)大學(xué)出版社，1992[4] 馬新民、鐘光耀，煤礦機(jī)械，中國(guó)礦業(yè)大學(xué)出版社，1989[5] 程居山等，礦山機(jī)械，中國(guó)礦業(yè)大學(xué)出版社，1997[6] 李?lèi)?ài)軍、曾維鑫，畫(huà)法幾何及機(jī)械制圖，中國(guó)礦業(yè)大學(xué)出版社，2002[7] 楊廷棟、周壽華、申 哲，漸開(kāi)線(xiàn)齒輪行星傳動(dòng)，成都科技大學(xué)出版社，1989[8] 江旭昌，大變位齒輪，中國(guó)建材工業(yè)出版社，2001[9] 機(jī)械設(shè)計(jì)手冊(cè)，機(jī)械工業(yè)出版社，1996[10] 赫桐生，理論力學(xué)，高等教育出版社，2003[11] 劉鴻文，材料力學(xué)［Ⅰ］、［Ⅱ］，高等教育出版社，2003[12] 張世洪等，電牽引采煤機(jī)的技術(shù)現(xiàn)狀與發(fā)展趨勢(shì)，2001[13] 何敬德等，國(guó)內(nèi)外煤礦采掘運(yùn)裝備技術(shù)現(xiàn)狀、發(fā)展對(duì)策和思考，煤礦機(jī)電，2002[14] 劉春生，國(guó)內(nèi)大功率自動(dòng)化電牽引采煤機(jī)的現(xiàn)狀和發(fā)展，煤礦機(jī)電，2004[15] 戴紹誠(chéng)等，高產(chǎn)高效綜合機(jī)械化采煤技術(shù)與裝備，煤炭工業(yè)出版社，1997[16] 梁正強(qiáng)，機(jī)械零件設(shè)計(jì)計(jì)算實(shí)例，國(guó)防工業(yè)出版社，1989[17] 饒振綱，行星機(jī)構(gòu)傳動(dòng)設(shè)計(jì)，國(guó)防工業(yè)出版社，1980[18] 于學(xué)謙、方佳雨，礦山運(yùn)輸機(jī)械，中國(guó)礦業(yè)大學(xué)出版社，1989[19] 王啟廣, 電牽引采煤機(jī)的現(xiàn)狀與發(fā)展. 礦山機(jī)械,2004[20] Tunnelling and Underground Space Technology 18 395—404,2003[21] Joseph ,Charles ：機(jī)械工業(yè)出版社,2002[22] 白杰平，伍 鋒，潘 英. Science and Technology English for Mechanical ：中國(guó)礦業(yè)大學(xué)出版社，1997英文原文The Technical Situation and Development Trend of Electrical Haulage ShearersAbstract： In this paper，the technical development history and technical situation of electrical haulage shearersfor thin seam of China are reviewed，and the main technical parameters，general structure，serialization anddevelopment trend of such sheares are introduced．Keywords： thin seam；shearer；electrical haulage；multi—motor driving；transverse arrangementGerman Eickhoff pany and American JOY pany, the mid 7039。這些寶貴財(cái)富都會(huì)使自己在將來(lái)的學(xué)習(xí)和工作中受益非淺。通過(guò)這樣的設(shè)計(jì)，使采煤機(jī)截割部的生產(chǎn)加工以及采煤機(jī)井下的安裝、調(diào)試都帶來(lái)了極大的方便，同時(shí)有利于促進(jìn)采煤機(jī)的系列化和通用化。采煤機(jī)采用電動(dòng)機(jī)橫向布置的形式，取代了以前采煤機(jī)固定減速箱里用于改變傳動(dòng)方向但極易損壞的錐齒輪，四級(jí)減速全設(shè)在搖臂里還可以增加搖臂長(zhǎng)度，用以增大采煤機(jī)的截深。因此，對(duì)采煤機(jī)進(jìn)行設(shè)計(jì)和改善是必要的，有現(xiàn)實(shí)意義的。采掘機(jī)械自動(dòng)化、先進(jìn)化是煤炭工業(yè)增加產(chǎn)量、提高勞動(dòng)生產(chǎn)率、改善勞動(dòng)環(huán)境和保證安全生產(chǎn)的必要技術(shù)手段，也是煤炭生產(chǎn)過(guò)程中節(jié)約能源、動(dòng)力和原材料消耗的有效技術(shù)措施。在石油、天然氣、水力發(fā)電和核動(dòng)力獲得巨大發(fā)展的今天，煤炭仍然是我國(guó)一次性能源的主體。我此次設(shè)計(jì)的題目是MG500/1200型電牽引采煤機(jī)截割部的設(shè)計(jì)。由表41查得，則[]=，即5865，取[]=60，軸的計(jì)算應(yīng)力為 所以該軸強(qiáng)度滿(mǎn)足強(qiáng)度要求 4) 軸承強(qiáng)度的校核a) 查《機(jī)械設(shè)計(jì)手冊(cè)》圓柱滾子軸承NCT2940V的主要性能參數(shù)： b) 計(jì)算軸承支反力 水平支反力 垂直支反力 合成支反力 軸承所受的軸向力為0，派生軸向力為0c) 軸承的當(dāng)量載荷 即： d) 軸承的壽命因?yàn)?，固都可以，由《機(jī)械設(shè)計(jì)工程學(xué)2》表59 ，510 查得： 按式55