【正文】 由于磨損、塑性變形等的設(shè)計(jì)計(jì)算至今未建立完善的計(jì)算方法，所以目前一般齒輪的設(shè)計(jì)計(jì)算，通常按齒面接觸疲勞強(qiáng)度和齒根彎曲疲勞強(qiáng)度計(jì)算。 總傳動(dòng)比： 總i = 電n / 滾n =1485/= 假設(shè)兩級(jí)直齒輪傳動(dòng) 和兩級(jí)行星齒輪傳動(dòng)的傳動(dòng)比分別為 1i 、 2i 、 ?i 、 ??i 。 ⑵ 結(jié)構(gòu)形式向多電機(jī)驅(qū)動(dòng)橫向布置發(fā)展。 (4) 多電機(jī)驅(qū)動(dòng)橫向布置的總體結(jié)構(gòu)日益發(fā)展 。 (4) 主機(jī)身多分為 3 段 , 取消了底托架 , 各零部件設(shè)計(jì)、制造強(qiáng)度大大提高 , 部件間用高強(qiáng)度液壓螺母聯(lián)接 , 拆裝方便 , 提高了整機(jī)的可靠性。同年，美國久益公司研制出了 1LS 直流 (串勵(lì) )電牽引采煤機(jī)，以后陸續(xù)改進(jìn)發(fā)展為 2LS, 3LS, 4LS 系列； 1996 年生產(chǎn)的 6LS05 型采煤機(jī)，其總裝機(jī)功率為 1530 kW ,是目前世界上功率較大的采煤機(jī)。 2021 年，雞西煤礦機(jī)械有限公司又與淮南礦業(yè)集團(tuán)聯(lián)合開發(fā)研制了 MG610/1400 一 WD 型橫向布置大功率升壓電牽引采煤機(jī)，成為國內(nèi)第一臺(tái)裝機(jī)功率大于 1000 kW 的大功率自替化采煤機(jī)。牽引部工作機(jī)構(gòu)為鋼絲繩牽引，傳動(dòng)系統(tǒng)通過齒輪傳動(dòng)，利用牙嵌式離合器進(jìn)行有級(jí)調(diào)速，為純機(jī)械式傳動(dòng)，所用電動(dòng)機(jī)為風(fēng)冷防爆電 動(dòng)機(jī)。按適用的煤層傾角分緩斜、大傾角和急斜煤層采煤機(jī)。目前國內(nèi)外采用這些采煤方法的國家所用采煤機(jī)械，絕大多數(shù)是滾筒式采煤機(jī)、刨煤機(jī)和掘進(jìn)機(jī)，只有少數(shù)先進(jìn)的煤礦采用薄煤層采煤機(jī)等設(shè)備。但是煤炭工業(yè)面臨著許多困難和問題，采煤機(jī)械化是最終發(fā)展的必然。 mechanized mining equipment demand is higher, and the investment cost is relatively large. So the seam thickness is developed to meet highend general mining shearer is very necessary, and MG750/2210WD type AC traction shearer is adapted for the thickness of the coal seam design Gaopu carried out. MG750/2210700WD type shearer cutting unit mechanical transmission by the two straight and two plaary gear drive for drive implementation. Taken to increase the roller rocker arm structure over coal space and to improve the efficiency of loading coal, and the corresponding levels of gears and shafts for the design calculations and the corresponding check, the results meet the design requirements. Keywords： Shearer； cutting unit； plaary bodies 目 錄 1 緒論 ............................................................................................................................................. 1 引言 .................................................................................................................................... 1 采煤機(jī)簡述 ........................................................................................................................ 1 采煤機(jī)國內(nèi)外發(fā)展情況及現(xiàn)狀 ........................................................................................ 2 國內(nèi)發(fā)展歷程 .......................................................................................................... 2 國外發(fā)展歷程 .......................................................................................................... 3 采煤機(jī)的發(fā)展趨勢(shì) ............................................................................................................ 4 國內(nèi)采煤機(jī)發(fā)展趨勢(shì) .............................................................................................. 4 .............................................................................................. 5 2. 總體設(shè)計(jì) .................................................................................................................................... 6 采煤機(jī)主要技術(shù)參數(shù)及配套設(shè)備 .................................................................................... 6 適用煤層 .................................................................................................................. 6 整機(jī)主要參數(shù)的確定 .............................................................................................. 6 各電機(jī)的主要參數(shù) .................................................................................................. 7 采煤機(jī)牽引型式的選擇 .......................................................................................... 7 截割部的設(shè)計(jì)及計(jì)算 ........................................................................................................ 7 采煤機(jī)截割部形式 .................................................................................................. 7 電動(dòng)機(jī)的選擇 .......................................................................................................... 7 總傳動(dòng)比的確定和總傳動(dòng)比的分配 ................................................................................ 8 總傳動(dòng)比的確定 ...................................................................................................... 8 總傳動(dòng)比的分配 ...................................................................................................... 8 截割部傳動(dòng)效率及輸出功率計(jì)算 .................................................................................... 9 傳動(dòng)效率： .............................................................................................................. 9 各軸轉(zhuǎn)速計(jì)算 ....................................................................................................... 10 各軸功率計(jì)算 ....................................................................................................... 10 各軸扭矩計(jì)算 ........................................................................................................ 10 數(shù)據(jù)匯總 ............................................................................................................... 10 3. 搖臂齒輪設(shè)計(jì)計(jì)算與強(qiáng)度校核 .............................................................................................. 11 兩級(jí)圓柱齒輪減速機(jī)構(gòu)設(shè)計(jì)與校核計(jì)算 ..................................................................... 11 齒輪 1 和齒輪 2 設(shè)計(jì)校核 .................................................................................... 11 第二級(jí)圓柱齒輪設(shè)計(jì)與校核計(jì)算 ....................................................................... 15 兩級(jí)行星齒輪減速機(jī)構(gòu)設(shè)計(jì)與校核計(jì)算 ..................................................................... 20 ..1 高速級(jí)行星齒輪減速機(jī)構(gòu)設(shè)計(jì)與校核計(jì)算 ...................................................... 20 低速級(jí)行星齒輪減速機(jī)構(gòu)設(shè)計(jì)與校核計(jì)算 ....................................................... 30 4 搖臂傳動(dòng)軸結(jié)構(gòu)設(shè)計(jì)與強(qiáng)度校核 ........................................................................................... 40 截一軸結(jié)構(gòu)設(shè)計(jì)與強(qiáng)度校核 ......................................................................................... 40 截一軸結(jié)構(gòu)設(shè)計(jì) ................................................................................................... 40 截一軸強(qiáng)度校核計(jì)算 ........................................................................................... 41 截一軸軸承校核計(jì)算 ...................................................................................