搓絲機(jī)傳動(dòng)裝置課程設(shè)計(jì)(編輯修改稿)
2024-08-23 16:00 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 齒面工作硬化系數(shù)ZW接觸強(qiáng)度尺寸系數(shù)ZX潤(rùn)滑油膜影響系數(shù)取值σHP=σHlimZNTZLZVZRZWZXSHlimSHlim=th=7200hNL1=107NL2=107ZNT1=ZNT2=ZW1=ZW2=ZX1=ZX2=ZL1=ZL2=ZR1=ZR2=ZV1=ZV2=σHP1=817MPaσHP2=736MPa驗(yàn)算σH=ZHZEZεZβKAKVKHβKHαFtbd1u+11σH=615MPa（3）確定主要傳動(dòng)尺寸中心距a=d1+d22=取整a=172mm螺旋角β=cos1mnz1+z22aβ=176。端面模數(shù)mt=mn/cosβmt=分度圓直徑d=mnz/cosβd1=d2=齒寬b=84mm（4）齒根彎曲疲勞強(qiáng)度驗(yàn)算齒形系數(shù)YFa由當(dāng)量齒寬查圖取值YFa1=YFa2=應(yīng)力修正系數(shù)由圖取值YSa1=YSa2=螺旋角系數(shù)Yβ由圖取值Yβ=齒向載荷分配系數(shù)bh=843=由圖279取值KFβ=許用彎曲應(yīng)力由圖2730取試驗(yàn)齒輪的齒根彎曲疲勞極限σFlim由表2717取最小安全系數(shù)SFmin由表2733確定尺寸系數(shù)YX由圖2732確定彎曲壽命系數(shù)YNT另外取值如右σFP=σFlimYNTYSTYVrelTYRrelTYXSFlimσFlim1=300N/mm2σFlim2=270N/mm2SFmin=YX1=YX2=YNT1=YNT2=YST1=YST2=2YVrelT1=YVrelT2 = YRrelT1=YRrelT2= σFP1=427MPaσFP2=401MPa驗(yàn)算σF=KAKVKFαKFβYFaYSaYεYβFtb1mnσF1=σF2=（5）齒輪主要傳動(dòng)尺寸列表壓力角ααn20176。螺旋角β8176。3839。分度圓直徑dd1=d2=齒頂高h(yuǎn)aha=ha*mha=3mm齒根高h(yuǎn)fhf=hf*mhf=齒頂間隙CC=C=中心距aa=d1+d22a=172mm六 軸的設(shè)計(jì)與校核1初估軸徑電機(jī)軸d0≥C3P0n0=取d00=24mm高速軸d1≥C3P1n1=取d11=30mm中間軸d2≥C3P2n2=取d22=45mm低速軸d3≥C3P3n3=取d33=65mm2軸強(qiáng)度校核1 高速軸齒輪上的作用力轉(zhuǎn) 矩圓周力徑向力軸向力T1= 9550P1/ n1Ft=2T1d1Fr=FttanαncosβFa=FttanβT1=mFt=4051NFr=1500NFa=736N支反力YZ平面FBV+FAV=FtFBV65=FAV171FAV=FBV=MV1=mXZ平面FBH+FAH=FrFBH65+Fa35=FAH171FAH=561NFBH=1231NMH1=mMH2=m合成彎矩Mc2=MV2+MH22Mc1=mMc2=m轉(zhuǎn)矩T1=m當(dāng)量彎矩α=σ1bσ0b=5595=Mec1=Mc12+αT12Mec2=Mc22+αT12α=Mec1=252NmMec2=m校核σ1b=75MPaσbc=Mec2Wc=σbc=41MPaσ1b軸初步設(shè)計(jì)圖：垂直面（YZ）受力:FBVFt1FAV彎矩圖：垂直面受力圖：Fa18466FrFBHFAH 彎矩圖：合成彎矩圖：當(dāng)量彎矩圖：2 中間軸高速級(jí)大齒輪齒輪上的作用力轉(zhuǎn) 矩圓周力徑向力軸向力T2= 9550P2/ n2Ft=2T2d2Fr=FttanαncosβFa=FttanβT1=mFt1=4051NFr1=1500NFa1=762N低速級(jí)小齒輪齒輪上的作用力轉(zhuǎn) 矩圓周力徑向力軸向力T2= 9550P2/ n2Ft=2T2d2Fr=FttanαncosβFa=FttanβT2=mFt2=8007NFr2=3982NFa2=1780N支反力YZ平面FBV+FAV=Ft1+Ft2Ft159+Ft2164=FAV200FAV=4462NFBV=3590NMV1=mMV2=mXZ平面FBH+FAH=Fr1+Fr2Fa259+FAH200=Fa1239+Fr1132+Fr2102FAH=628NFBH=619NMH1=mMH2=m合成彎矩Mc1=MV12+MH12Mc2=MV22+MH42Mc1=mMc2=m轉(zhuǎn)矩T1=m當(dāng)量彎矩α=σ1bσ0b=5595=Mec1=Mc12+αT12Mec2=Mc22+αT12α=Mec1=553NmMec2=568Nm校核σ1b=75MPaσbc1=Mec1Wcσbc2=Mec1Wcσbc1=σ1bσbc2=σ1b軸初步設(shè)計(jì)圖：豎直面（YZ平面）支反力及彎矩計(jì)算如下：8410467Ft2FBVFAVFBHFAH水平面（XZ平面）支反力及彎矩計(jì)算如下：Fa2Fa1Fr2Fr1MHD’MHC’3 低速軸齒輪上的作用力轉(zhuǎn) 矩圓周力徑向力軸向力T3= 9550P2/ n2Ft=2T2d3Fr=FttanαncosβFa=FttanβT3=mFt=8074NFr=3011NFa=1796N支反力YZ平面FBV+FAV=FtFAV103=Ft103FAV=3180NFBV=4894NMV1=mXZ平面FBH+FAH=FrFAH=2297NFBH=714NMH1=mMH2=m合成彎矩Mc2=MH22+MV12Mc2=m轉(zhuǎn)矩T1=m當(dāng)量彎矩α=σ1bσ0b=5595=Mec2=Mc22+αT12α=Mec2=1498Nm校核σ1b=75MPaσbc2=Mec2Wcσbc2=σ1b軸初步設(shè)計(jì)圖：4數(shù)據(jù)列表高速軸中間軸低速軸當(dāng)量彎矩Mec1=mMec2=mMec1=mMec2=mMec1=mMec2=m危險(xiǎn)截面校核σbc2=41MPaσ1bσbc2=σ1bσbc2=σ1b七 軸承的選擇與校核1 輸入軸承6203計(jì)算項(xiàng)目計(jì)算內(nèi)容計(jì)算結(jié)果軸承主要性能參數(shù)630
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