大学毕业论文--宝钢φ140mm机组装备条件下φ603×645mm油井管的开发说明书

安徽工业大学 安徽工业大学 毕业设计说明书共2共2页第页共93页PMPMmax=R1I2==980.20.35=343.0kNm,490-151.2、3.3 3.14( )1000 0.003832maxMmaxmaxMmax343.0=90.3MPaWz 0.0038对铸钢轧辊，安全系数取n=5,当＜is=500~600MPa时，许用应力ELl00MPa[13]•••二max=90.3MPa =100MPa,校核通过。7.3.2辊颈部分一一按弯扭合成由于辊颈受到轧制力和扭矩的作用，因此其强度要考虑弯曲和扭转的合成应力。辊颈和辊身的接触处产生的应力最大，此处为危险断面。1）弯曲应力•••MzI=980.2(0.35-0.225)122.53kNmWz二Wz二0.3=d‘32江=0.0026532=46.24MPaMz=46.24MPa— 3Wz 2.65102）危险断面的扭转应力轧制扭转力矩Mn-9.552200-140kNm150Wn■d3160.3—0.005316WWn■d3160.3—0.005316Wn1400.0053=26.42MPa对于铸钢轧辊，据第四强度理论有：•2亠4•2J22=^01346.24「一42426.42222

校核通过。7.3.3轴头部分的强度校核轴头部分主要受到电机的扭矩，轧制力P是很小的，也不受其他的大的外力的作用，故只考虑扭转强度的影响。轴头扭转力矩Mn:Mn=9.55-N=9.55 22°。=i40kNmnH 1503抗扭截面模量Wn:Wn D3140.27—0.003861616二轴头扭转强度.二叫140 =36.24MPaWn 3.86X0••• =36.24MPa::: -1=100MPa•••校核通过［14］。7.4主电机容量校核7.4.1轧辊传动所需要力矩Mt=McMd=Mzh「iMfMkMd式中：Mt电机轴上总力矩；Mzh轧制力矩；Mf总摩擦力矩；Mk空转力矩；Md电机轴上动力矩。轧制力矩Mzh=2M摩擦力矩Mf1Mf Mf2i(7-10)(7-11)其中：Mf1=P(7-10)(7-11)Mf1Mzhi代入式（5-10）有:302.5mm,取(7-⑵实测得到：t咬二2.3sec302.5mm,取(7-⑵实测得到：t咬二2.3sec（开轧-轧件前端到达No.8架轧辊中心面）LmFiJ/F(7-13)Mzh+MflMt MkMdim对油膜轴承fi二0.003,辊颈直径dh[0.5〜0.55Dg=275〜d=300mm,i^1, =0.95。辊颈长度I二0.83~1.0d=249~300mm，取d=300mm。•••Mf1=0.0030.3P=0.0030.31960.4=1.76kNmMzh=2M=2103=206kNm7.4.2电机空转力矩Mk=0.5MH=0.05140=7kNm7.4.3传动系统动力矩无飞轮且辊系及传动系统的动力矩不大，忽略之。代入相关数据可得Mt=225.7kNm7.5.绘制电机负荷图7.5.1计算纯轧时间tCZ对第i架而言:式中：Vo1~8-3.370msLm=11.3m(7、XFi^1•=2.7FM得：t稳=QZ=2.55sec得：t稳=QZ=2.55sec3.37tcz=2.32.55=4.85sec7.5.2电机轴上负荷图M/(kNm)r—15s吕85缶 ►t/s图7-2电机负荷图7.6电机能力校核7.6.1发热校核要求均方根功率Nck＜额定功率Nh或均方根力矩M或均方根力矩Mck＜额定力矩Mh叫曲十“55鴛齐曲均方根功率:MckM均方根功率:MckM「CZM21：Mhtcztj(7-14)代入数据可得:Mck2257Mck225724^57210.15^29kN^140kNm15•••热校核通过。7.6.2过载校核要求：Mmaxk：Mh(7-15)式中：M“ax负载最大力矩（折算到电机轴上）；MH电机额定转矩；取k=0.85取k=0.85k考虑电源电压波动对额定转矩的影响系数，一般取 0.85~0.9•••k：Mh-0.852.2140=261.8kNm.MTmax=225.7kNm,过载校核通过[14]8产品主要技术经济指标8.1能源介质消耗指标见表8-1所示：表8-1 能源介质消耗指标No 能源介质名称生产用水水生活用水重油+混合煤气2混合煤气蒸汽电力压缩空气氧气（02）氮气（N2）氩气（Ar）最大7000平均m3.h6790水压：0.25MPa最大200平均14710690.04其中：再加热炉消耗Kcal/h95.8628.66106Kcal/h最大t/h21.06压力:0.8MPa平均15.0KW87000小时计算复合：61000KW最大m3.h17500压力:0.8MPa平均13197最大m3h552压力:0.8MPa平均324最大m3h830压力:0.8MPa平均350最大m3h9压力:0.8MPa平均8.2单位能耗备注8.2工具消耗指标见表8-2所示[15]:表8-2 工具消耗指标No 项目 主要技术数据 单位年耗量1热定心机：定径梁Nr27373005250副22热定心机：顶头Nr2635 146只6穿孔机狄 材质56NiCrMoV73只4舌小导盘 外环直径1847~1697146装4穿孔轧辊辊套CK45,T150~1000670只634CrMo45穿孔机顶杆根15112~785140006穿孔顶头铸钢2714150~78325只46507穿孔机轧辊高耐磨球墨铸铁500只126订8张减机轧辊高耐磨球墨铸铁300只1167Nr2343(X38CrMoV)9连轧机芯棒根76141~662970010连轧机轧辊高耐磨球墨铸铁600~490只194线11圆盘锯锯片630~1800片1325I 结论: 本文主要是通过对上海宝钢钢管厂的实习，查阅了众多资料，并在尹元德、李胜祗I 老师指导下完成的。在本设计中，以26CrMo钢为原料，钢级G105,对规格为: *6036.45mm的油井套管进行了产品设计。符合国家标准，表明本次产品开发达到了I 预期的目的，可以作为生产后备计划。装致谢| 本设计历时3个月，其中遇到众多难题，在老师和同学们的帮助下最终一一克服。I 感谢尹元德、李胜祗老师的悉心指导，以及同组员的帮助。本设计中的大部分资料由宝| 钢股份公司提供，在此予于衷心的谢意。I 鉴于作者水平有限，如有错误还请评阅老师给予指正。装订线： 致谢人：王秀伟2010-6-10参考文献殷国茂,张之奇•我国无缝钢管生产的发展（上）[J].钢管，2003.张之奇,杨秀琴，侯毅，殷国茂.我国油井管生产的回顾和展望[J].2000.张毅,李鹤林，陈诚德.我国油井管现状及存在问题[J].焊管，1999,5:1-1.李鹤林.油井管发展动向和国产化探讨[C].1998,1.⑸李长穆.现代钢管生产[M].北京：冶金工业出版社,1984.卢秉林.生产实习参考资料[S].安徽工业大学,1999.上海冶金设计院.宝钢140机组引进技术资料[S].李胜祗.成型与控制工程专业毕业设计手册，钢管分册[S].宝钢钢管组.技术规程《连轧机》[S],1991.152.5系统预设定值《技术标准》.宝钢钢管厂（内部资料）[S].1-2.李连诗.钢管塑性变形原理[M].北京：冶金工业出版社,1985.武汉钢铁设计研究院.轧钢车间设计参考资料之二（通用部分）内部资料[S].邹家祥.轧钢机械[M].北京:冶金工业出版社，2000.AlbertPozsgay.Accu-Roll:Anewtypeofseamlesstubemill[J].IronandSteelEngineer,1986（6）:36~42.LailaS.Bayoumi.Analysisofflowandstressesinatubestretch-reducinghotrollingschedule』.InternationalJournalofMechanicalSciences,2002（128）:130~135.附A(轧制表源程序)PrivateSubCommand2_Click()'定义变量'定义变量DimSrAsSingleDimDkAsSingleDimSkAsSingleDimKxAsStringDimKx1AsStringDimKx2AsStringDimRaAsSingleDimDim1AsSingleDimDwrAsSingleDimDwcAsSingleDimDrminAsSingleDimD(1To23)AsSingleDimDt2(1To19)AsIntegerDimG(1To5)AsSingleDimG1(1To5)AsSingleDimrjAsSingleDimc1AsSingleDimc2AsSingleDimc3AsSingleDimc4AsSingleDimc5AsSingleDimjAsIntegerDimiAsIntegerDimnAsIntegerDimkAsIntegerDimGjiaAsIntegerDimqAsSingleDimVekgAsSingleDimLveAsSingleDimdet1AsSingleDimdet2AsSingleDimdetSkAsSingleDimEmAsSingleDimErAsSingleDimFa1AsSingleDimFa2AsSingleDimZoAsSingleDimDdAsSingleDimDmAsSingleDimSmAsSingleDimDm1AsSingleDimDhAsIntegerDimShAsSingleDimdetSmAsSingleDimDbAsSingleDimGbAsSingleDimGbminAsSingleDimGb1maxAsSingleDimGb2maxAsSingleDimGb3maxAsSingleDimGb4maxAsSingleDimGb5maxAsSingleDimGb1minAsSingleDimGb2minAsSingleDimGb3minAsSingleDimGb4minAsSingleDimGb5minAsSingleDimLzjAsSingleDimLbAsSingleDimLhAsSingleDimLmAsSingleDimLkAsSingleDimLrAsSingleDimUrAsSingleDimLnAsSingleDimLbmaxAsSingleDimLmmaxAsSingleDimLhmaxAsSingleDimLkmaxAsSingleDimLrmaxAsSingleDimLbminAsSingleDimLmminAsSingleDimLhminAsSingleDimLkminAsSingleDimLrminAsSingleDimAnwoAsSingleDimAdhoAsSingleDimEWAAsSingleDimVkAsSingleDimPbAsSingleDimPhAsSingleDimPmAsSingleDimPkAsSingleDimPrAsSingleDimDt1AsSingleDimDtAsSingleDimDganAsIntegerDimBekAsSingleDimbatlAsSingleDimbat2AsSingleDimbat3AsSingleDimArfAsSingleDimaAsSingleDimbAsSingleDimXAsSingleDimYAsSingleDimLtAsSingleDimLt1AsSingleDimLt2AsSingleDimaa(1To11)AsSingleDimbb(1To7)AsSingleDimee(1To3)AsSingleDimdd1(1To3)AsSingleDimee(1To4)AsSingleDimVexAsSingleDimTezAsSingleDimLpAsSingleDimLinAsSingleDimLoutAsSingleDimLg12AsSingleDimDg1AsSingleDimDg2AsSingleDimTcjAsSingleDimThAsSingleDimTkAsSingleDimTAsSingleDimRAsSingleDimGuanAsIntegerDimKfAsSingleDimA理AsSingleDimA实AsSingleDr=CSng(Text1.Text)Sr=CSng(Text2.Text)'计算各变量'计算各变量Kx1="119A"Dk=119ElseIfDr<=42.4ThenIfSr/(Dr-Sr)<0.18ThenKx1="152.5A"Dk=152.5ElseKx1="119A"Dk=119EndIfElseIfDr<=108ThenIfSr/(Dr-Sr)<0.18ThenKx1="152.5B"Dk=152.5ElseKx1="119B"Dk=119EndIfElseKx1="152.5B"Dk=152.5EndIfEndIfEndIfIfSr/(Dr-Sr)<0.125ThenIfDr>=88.9AndSr>8ThenKx2="r"ElseKx2="o"EndIfElse:Kx2="r"EndIfIfDr>=21.3AndDr<=33.7ThenDrmin=21.3ElseIfDr>=44.5ThenDrmin=44.5ElseIfSr/(Dr-Sr)<0.18ThenDrmin=33.7ElseDrmin=21.3EndIfEndIfEndIfDwc=:1.1*1.01*DrminIfKx1="119A"ThenRa=0.077IfKx1="119B"ThenRa=0.04IfKx1="152.5A"ThenRa=0.0665IfKx1="152.5B"ThenRa=0.0526D(1)=:Dk/1.02D(2)=:D(1)/1.03D(3)=:D(2)/1.04Dwr=D(3)Dim1:=Sqr(Dwr*Dwc)Fori=:4To23IfD(i-1)>DimlThenrj=Ra+0.007*(D(i-1)-Dim1)/(Dwr-Dim1)D(i)=D(i-1)*Exp(-rj)Elserj=Ra-0.007*(Dim1-D(i-1))/(Dim1-Dwc)D(i)=D(i-1)*Exp(-rj)EndIfNextiForj=1To23q=D(j)/DrIfq>1.06Andq<1.12Thenc1=0.45c2=0.3c3=0.2c4=0.05c5=0Gjia=j+5EndIfIfq>=1.035Andq<1.06Thenc1=0.6c2=0.3c3=0.1c4=0c5=0Gjia=j+4EndIfNextjIfDk=119ThenOpen"119sys.txt"ForInputAs#1Fori=0To340Forj=1To11Input#1,aa(j)NextjIfDr=aa(1)AndSr=aa(2)ThenSk=aa(3)Lve=aa(5)*2Vekg=aa(7)ExitForEndIfNextiClose#1ElseOpen"1525sys.txt"ForInputAs#2Fori=0To377Forj=1To7Input#2,bb(j)NextjIfDr=bb(1)AndSr=bb(2)ThenSk=bb(3)Lve=bb(5)*2Vekg=bb(7)ExitForEndIfNextiClose#2EndIfIfDk=119ThenOpen"119k.txt"ForInputAs#3Fori=0To32Forj=1To3Input#3,cc(j)NextjIfSk=cc(1)ThenAnwo=cc(2)Vk=cc(3)ExitForEndIfNextiClose#3ElseOpen"152.5k.txt"ForInputAs#4Fori=0To39Forj=1To3Input#4,dd1(j)NextjIfSk=dd1(1)ThenAnwo=dd1(2)Vk=dd1(3)ExitForEndIfNextiClose#4EndIfEm=0.5*(Sk/(Dk-Sk)+Sr/(Dr-Sr))Fa1=Log(Sk/(1.01*Sr))Fa2=Log((Dk-Sk)/(1.01*(Dr-Sr)))Fa2))Zo=((2-Em)*Fa1+(1-2*Em)*Fa2)/((1-Em)*(Fa1+2Fa2))det1=3.5IfDk=119AndSk>=3.25AndSk<=25ThendetSk=8.5det2=9EndIfIfDk=152.5ThenIfSk>=3.5AndSk<=4.25ThendetSk=7.25det2=15.5EndIfIfSk=4.5ThendetSk=8.75det2=12.5EndIfIfSk=4.75ThendetSk=9.25det2=11.5EndIfIfSk>=5AndSk<=5.5ThendetSk=9.5det2=11EndIfIfSk>=5.75AndSk<=11.75ThendetSk=9.75det2=10.5EndIfIfSk>=12.25AndSk<=15ThendetSk=10det2=10EndIfIfSk>=16AndSk<=20ThendetSk=10.25det2=9.5EndIfIfSk>=22#AndSk<=36#ThendetSk=10.5det2=9#EndIfEndIfDd=Dk-2*Sk-deDm1=Dd+det2Sm=:Sk+detSkDm=:Dm1+2*SmDh=184IfDk=152.5ThendetSm=0EndIfIfDk=119ThenIfSm>=11.75AndSm<=13.5ThendetSm=0.75EndIfIfSm>=14.25AndSm<=18.5ThendetSm=1EndIfIfSm>=18.75AndSm<=23#ThendetSm=1.25EndIfIfSm>=23.25AndSm<=27.5ThendetSm=1.5EndIfIfSm>=27.75AndSm<=32.25ThendetSm=1.75EndIfIfSm>=32.5AndSm<=33.5ThendetSm=2#EndIfEndIfSh=Sm-detSmDh=184Db=175Adho=0.02Lbmax:=4.5Lhmax:=11#Lmmax=14.1Lkmax:=33#Lrmax==160Lbmin=:0.85Lhmin=:3.4Lmmin:=3.5Lkmin=:8#Lrmin=8.5Ph=3.14*7.84*Sh*(Dh-Sh)/1000Pm=3.14*7.84*Sm*(Dm-Sm)/1000Pk=3.14*7.84*(Dk-Sk)*Sk/1000Pr=3.14*7.84*Sr*(Dr-Sr)/1000Pb=195.1Gb1max=878Gb2max=Ph*Lhmax/(1.03*0.98)Gb3max=Pm*Lmmax/(1.03*0.98)Gb4max=Pk*Lkmax/(1.03*0.98)Gb5max=((Lrmax*0.99-Lve)*Pr+Vekg+Vk)/(1-Adho-Anwo)壮 Gb1min=195.1*0.86装Gb2min=Ph*Lhmin/(1.03*0.98)Gb3min=Pm*Lmmin/(1.03*0.98)Gb4min=Pk*Lkmin/(1.03*0.98)Gb5min=((Lrmin*0.99-Lve)*Pr+Vekg+Vk)/(1-Adho-Anwo)订 G(1)=Gb1maxGb=G(1)G(2)=Gb2maxG(3)=Gb3maxGW=Gb4max线G(5)=Gb5maxFori=1To5IfG(i)<GbThenGb=G(i)NextiG1(1)=Gb1minGbmin=G1(1)G1(2)=Gb2minG1(3)=Gb3minG1(4)=Gb4minG1(5)=Gb5minFori=1To5IfG1(i)>GbminThenGbmin=G1(i)EndIfNextiEWA=1-Adho-Anwo-(Vekg+Vk)/GbLb=Gb/PbLh=Gb*1.03*0.98/PhLm=Gb*1.03*0.98/PmLk=Gb*1.03*0.98/PkLr=(Gb*EWA/Pr+Lve)*1.01Ln=Gb*0.99*EWA/Prdetdk=Dh/(6*Sqr(Sh))Dt1=Dh-2*Sh-detdkDt2(1)=78Fori=1To18Dt2(i+1)=Dt2(i)+4NextiForj=2To18IfAbs(Dt1-Dt2(j))<=2ThenDt=Dt2(j)EndIfNextjIfDt1<=80ThenDt=78IfDt1>=148ThenDt=150IfDt>=126ThenDgan=118ElseIfDt<=122AndDt>=110ThenDgan=102EndIfIfDt<=106AndDt>=98ThenDgan=98EndIfIfDt<=94AndDt>=86ThenDgan=80EndIfIfDt<=82AndDt>=78ThenDgan=73EndIfEndIfa=125X=120Open"dgancshu.txt"ForInputAs#5Forn=1To19Fork=1To4Input#5,ee(k)NextkIfDt=ee(1)ThenLt1=ee(2)Lt2=ee(3)装 Lt=ee⑷ExitForEndIfNextnClose#5订bat1=1.2*3.14/180bat2=4*3.14/180bat3=2.75*3.14/180Bck=110-0.029*(Lt1+Lt2)+0.608*Sh+0.304*Dt线b=Lt1+Lt2-20.83*Sh-10.42*(Dt-Bck)Y=200-(Lt-b-148)Er=(Dk-Dr)/Dk*100Vcx=1.2Arf=12*3.14/180Lg12=125Dg1=(1150+1000)/2Dg2=Dg1-2*Lg12*(Tan(bat2)-Tan(bat1))Lin=Cos(Arf)*(Sqr((Sin(Arf))A2*(Db+Dg2)A2-((Sin(Arf))A2-(Tan(bat1))A2)*(Bck+Dg2)a2)-Tan(bat1)*(Db+Dg2))/(2*((Sin(Arf))a2-(Tan(bat1))a2))Lout=Cos(Arf)*(Sqr((Sin(Arf))a2*(Dh+Dg1)a2-((Sin(Arf))a2-(Tan(bat3))a2)(Bck+Dg1)a2)-Tan(bat3)*(Db+Dg1))/(2*((Sin(Arf))a2-(Tan(bat3))a2))Lp=Lin+LoutTcz=(Lh+Lp-0.97)/Vcx+1Tcj=5.5

Th=Tcz+TcjTk=15IfTh>=TkThenT=ThElse:T=TkEndIfIf1.2*60/((Lh+Lp)/1000+6.8)<=4ThenR=1.2*60/((Lh+Lp)/1000+6.8)Else:R=4EndIfIfCombo1.Text='油井管"ThenKf=0.94IfCombo1.Text=一般管"ThenKf=0.96IfCombo1.Text='高压锅炉管"ThenKf=0.82A理=60*R*Gb*0.001*(1-0.008)*EWA*Kf'输出及写入文件A实=0.9*A'输出及写入文件Text3.Text=GbText4.Text=Str(Gbmin)Text5.Text=Str(Dh)Text6.Text=Str(Sh)T