MG200-475-W型采煤機設(shè)計說明書.doc

第1章緒論.11.1引言.11.2采煤機械概述.11.2.1采煤機械化的發(fā)展.11.2.2機械化采煤的類型.21.3采煤機簡述.31.31采煤機的分類、組成和工作原理.31.32滾筒采煤機的工作原理.41.33滾筒采煤機的特點.51.34煤機與刨煤機的比較.5第2章MG200/475W型采煤機.72.1概述.72.2主要用途及適用范圍.72.3型號的組成及其代表的含義.72.4使用環(huán)境條件.8第3章MG200/475W型采煤機截割部的設(shè)計.93.1截割部傳動總體方案.93.1.1設(shè)計總則.93.1.2已知條件.93.1.3截割電動機的選擇.93.1.4計算傳動效率.103.1.5傳動比的分配及配齒情況.103.2截割部傳動系統(tǒng)齒輪的校核計算.113.2.1Z1與Z2嚙合參數(shù)及強度計算.113.2.2Z2與Z3嚙合參數(shù)及強度計算.163.2.3Z4與Z5嚙合參數(shù)及強度計算.203.2.4Z6與Z7嚙合參數(shù)及強度計算.253.2.5Z8與Z9嚙合參數(shù)及強度計算.303.2.6行星傳動齒輪參數(shù)及強度計算.353.3截割部傳動系統(tǒng)各傳動軸、軸承的校核計算.473.3.1截一軸軸、軸承的校核計算.473.3.2惰一軸軸、軸承的校核計算.493.3.3截二軸軸、軸承的校核計算.523.3.4截三軸軸、軸承的校核計算.543.3.5惰二軸軸、軸承的校核計算.573.3.6惰三軸軸、軸承的校核計算.603.3.7截四軸軸、軸承的校核計算.603.3.8太陽輪軸軸、軸承的校核計算.623.3.9行星輪軸軸、軸承的校核計算.633.4各軸花鍵的設(shè)計與校核.643.4.1截一軸花鍵設(shè)計計算.643.4.2截二軸花鍵設(shè)計計算.653.4.3截三軸花鍵設(shè)計計算.663.4.4截四軸花鍵設(shè)計計算.673.4.5輸出軸花鍵設(shè)計計算.68總結(jié).70參考文獻.71摘要本說明書描述了MG200/475-W型液壓牽引采煤機整機方案設(shè)計以及截割部的設(shè)計和計算過程。MG200/475-W型液壓牽引采煤機可用于煤層厚度為1.3-2.5m、煤質(zhì)中硬的緩傾斜煤層。與傳統(tǒng)的縱向布置的單電機采煤機相比，該采煤機將截割電機直接安裝在截割部殼體內(nèi)，齒輪減速裝置全部集中在截割部殼體及行星減速器內(nèi)，取消了螺旋傘齒輪、固定減速箱、搖臂回轉(zhuǎn)套等結(jié)構(gòu)，使其結(jié)構(gòu)更簡單、緊湊，可靠性更高。截割部是采煤機直接落煤、裝煤的部分，其消耗的功率約占整個采煤機功率的80%-90%，主要由截割部殼體、截割電機、齒輪減速裝置、滾筒等組成。該采煤機的截割部采用四級傳動；前三級為直齒傳動，第四級為行星傳動。二級傳動的圓柱齒輪為可換齒輪，使輸出轉(zhuǎn)速可根據(jù)不同的煤質(zhì)硬度在兩檔速度內(nèi)選取。截割部采用了三個惰輪軸，使采煤機能夠滿足截割高度對截割部長度的要求。設(shè)計將截割部行星減速器和滾筒直接聯(lián)結(jié)，取消了安裝在滾筒上的截齒，使結(jié)構(gòu)簡單、可靠。關(guān)鍵詞：采煤機，截割部，結(jié)構(gòu)，設(shè)計AbstractThisbrochuredescribesthetypeofhydraulicMG200/475-WshearertractionunitprogramdesignandcuttingtheDepartmentofDesignandcalculationprocess.MG200/475-WtractionShearerhydraulicseamthicknesscanbeusedfora.3-2.5m,Hardcoaltothegentlyinclinedseam.Withthetraditionalverticallayoutofthesingle-motorcomparedtoShearer,Shearerwillbetheranging-arminstalleddirectlyinthecuttingoftheshell,geardeviceexclusivelyoncuttingShellandplanetaryreducer,theabolitionofthespiralbevelgears,gearboxfixed,Rockerrotatingsetsofstructures,theirstructureissimpler,morecompactandhigherreliability.Ranging-armoftheshearerisdirectlychargedcoal,thecoalloaded,itsaboutthepowerconsumptionoftheentirepowershearer80%-90%,mainlybycuttingShell,cuttingelectrical,Gearanddrumcomponents.Theshearercuttingunitusedfourdrive；Beforethreestraighttoothdrive,thefourthlevelofplanetarytransmission.2DriveGeartobeforthegears,enablingtheoutputspeedcanbebasedondifferentcoalhardnessintwotrancheswithintheselectedspeed.CuttingtheDepartmenthasadoptedathreelazyaxle,tomeettheshearercuttingheightontheranging-armdegreerequirements.Designedtobecuttingplaneta