離心式渣漿泵結(jié)構(gòu)設(shè)計(jì)說明書畢業(yè)論文.doc

I摘要離心式渣漿泵廣泛應(yīng)用于煤炭、礦山、冶金、電力、水利、交通等部門，主要進(jìn)行靜礦、尾礦、灰渣、泥沙等固體物料的水力輸送，但其過流部件的磨損相當(dāng)嚴(yán)重，其主要破壞形式為過流部件洞穿和變形，過流部件的嚴(yán)重磨損，惡化了泵內(nèi)流動特性及外特性，縮短了泵的實(shí)際使用壽命，使生產(chǎn)效率降低，加大耗能和設(shè)備的投資，進(jìn)而影響生產(chǎn)的發(fā)展。因此所設(shè)計(jì)的渣漿泵中采用多葉片數(shù)來減少單個(gè)葉片的磨損，適當(dāng)?shù)脑黾舆^流部件的厚度并采用高硬度的耐磨材料來來減小磨損，將葉輪入口的后蓋板設(shè)計(jì)為凸出的、由光滑圓弧組成的輪轂頭。采用填料密封來防止高壓液體從泵中漏出和防止空氣進(jìn)入泵內(nèi)并用背葉片來平衡軸向力。本設(shè)計(jì)詳細(xì)介紹了渣漿泵的總體結(jié)構(gòu)，工作原理和結(jié)構(gòu)設(shè)計(jì)。關(guān)鍵詞：葉輪背葉片填料密封IIAbstractTheslurrypumpistheextensiveapplyinginthecoal,mineralmountain,metallurgy,electrical,waterconservancy,transportationandsoon.Itismaintoproceedthewaterpowerofthestaticmineral,tailmineral,ashgrain,sedimentsolidmaterialtransportation.Butitsveryseriousovertheabrasionthatflowtheparts.Itsmainbreakageformisoverflowthepartspenetratewithtransformation.Overseriousabrasionthatflowtheparts，itisworseningthepumpinsideflowscharacteristicandoutsidecharacteristics,shortingtheactualservicelifeofthepumpandmakingproductionefficiencylower,enlargingconsumestheinvestmentoftheequipments,andthenaffectingthedevelopmentoftheproduction.Itadoptmanyleafsnumbertoreducethesingleabrasionofleafssliceforthisdesigningslurrypump,alsoincreasedcombinesoverthethicknessthatflowthepartsthehighdegreeofhardnessinadoptionbearstowhetthematerialtocometoletupthewearandtear,andempressedanentrancecoversplankdesignastobulgeandsmoothhubcaphead.Adoptedthefillerwhichissealedcompletelytopreventthehighpressureliquidtoleakfromthepumpwithkeepairfromenteringtopumptheinsidecounteracttocarryonthebackleafsslicetoequilibriumstalkfacedint.Thisdesignwasdetailedtointroducethetotalconstructionthatslurrypump,theworkprincipledesignswiththeconstruction.Keywords:impellerauxiliaryimpellerthefillersealsIII目錄摘要Abstract一般部分第1章概論11.1泵的定義及其用途11.2泵的分類11.2.1葉片式泵11.2.2容積式泵11.2.3特殊類型的泵2第2章泵的結(jié)構(gòu)設(shè)計(jì)與計(jì)算32.1泵基本參數(shù)的確定32.1.1泵吸入口和排除口的確定32.1.2軸徑的初步計(jì)算32.2葉輪的水力設(shè)計(jì)52.2.1葉輪的主要參數(shù)的選擇和計(jì)算52.3壓水室的設(shè)計(jì)14第3章徑向力與軸向力的平衡203.1徑向力及其平衡203.2軸向力及其分213.3軸向力的平衡233.4用背葉片平衡軸向力23第4章離心泵主要零部件的強(qiáng)度計(jì)算254.1引言254.2葉輪的強(qiáng)度的254.2.1葉輪強(qiáng)度計(jì)算254.2.2葉片厚度的計(jì)算264.2.3輪轂強(qiáng)度的計(jì)算274.3泵體強(qiáng)度的計(jì)算284.4泵軸的校核294.4.1按扭轉(zhuǎn)強(qiáng)度校核29IV4.4.2按彎扭合成強(qiáng)度條件計(jì)算294.4.3校核軸的強(qiáng)度314.4.4按疲勞強(qiáng)度條件進(jìn)行精確校核314.4.5按靜強(qiáng)度條件進(jìn)行校核354.4.6軸的剛度校核計(jì)算354.5鍵的校核354.5.1鍵的剪應(yīng)力校核354.5.2鍵的擠壓切應(yīng)力的計(jì)算36第5章渣漿泵零部件的選擇375.1選用渣漿泵零部件的重要性375.2軸封結(jié)構(gòu)的選擇385.2.1常用的填料385.2.2填料函結(jié)構(gòu)尺寸的確定385.2.3填料密封安裝技術(shù)要求405.3軸承部件的選擇405.3.1滾動軸承的潤滑及軸承結(jié)415.3.2滾動軸承安裝時(shí)的問題41第6章渣漿泵裝配及運(yùn)轉(zhuǎn)的注意事項(xiàng)426.1裝配時(shí)的注意事項(xiàng)426.2運(yùn)轉(zhuǎn)時(shí)的注意