二級減速器計算說明書

機械設(shè)計課程設(shè)計計算說明書機械設(shè)計課程設(shè)計計算說明書32PAGE6頁機械設(shè)計課程設(shè)計計算說明書設(shè)計題目 二級斜齒圓柱齒輪減速器目錄一設(shè)計務(wù)書 (3)二動力選擇 (4)二齒輪算 (6)三齒輪主要數(shù) 四軸的計 (12)五裝配圖 (17)六軸的核 (17)七軸承校核 (23)八鍵的核 (26)九潤滑式、滑油號及封裝的選擇 (28)十箱體其附的結(jié)設(shè)計 (29)十、設(shè)總結(jié) (30)十、參資料 （31）一、設(shè)計任務(wù)書1、帶式運輸機的工作原理（二級展開式圓柱齒輪減速器帶式運輸機傳動示意圖）2、工作情況：已知條件：35℃；8年；380/220V；5%；3、原始數(shù)據(jù)：滾筒直徑D=300mm，傳送帶工作速度V=0.7m/s傳送帶軸所需轉(zhuǎn)矩900N·m電動機選n=1500rr/min滾筒直徑D=300mm傳送帶工作速度V=0.7m/s二、動力機選擇傳送帶工作拉力F2T29006KND 0.3Pw

FV60000.74.2kw3109110972082309496總0.9820.9920.9930.990.960.868總由于電動機工作平穩(wěn)取Ka=1.0則電動機所需工作功率為PKPw14.2

4.839Kw總d a 0.868總VnwDV

0.7

r/s44.563r/minn電(25~33)44.5631114.075~1470.579r/min電動機型號Y132S-4同步轉(zhuǎn)速1500r/min4級額定功率5.5Kw滿載1440r/min最大轉(zhuǎn)矩2.3KN總indnw總

140044.563

32.314分配傳動比

i11.4i2

則i16.726

i24.804輸入軸n11400r/min中間軸n2214.095r/min輸出軸n344.563r/min3.確定各軸功率1d34.8390.994.79Kw21124.64Kw32124.50Kw總3134.41KwPFV4.2KwP4 卷 3 44.輸入轉(zhuǎn)矩

Td9550

9550

5.51440

36.476N.m1高速軸轉(zhuǎn)矩1

T9550P195504.79131.774N.m中間軸轉(zhuǎn)矩

n12T9550P295502n2

14404.648214.095

207.330N.m低速軸轉(zhuǎn)矩

T9550P395503n33

4.50944.563

966.294N.m卷筒轉(zhuǎn)矩

T9550P495504n44

4.41944.563

947.006N.m軸名功率PKw轉(zhuǎn)矩TN.m轉(zhuǎn)速nr/min傳動比電機軸5.536.47614401高速軸4.79131.77414401中間軸4.648207.330214.0956.726低速軸4.509966.29444.5634.804卷筒4.419947.00644.5631二、齒輪計算輸入功率小齒輪轉(zhuǎn)速齒數(shù)比小齒輪轉(zhuǎn)矩載荷系數(shù)K4.79114406.72631.7741.140GrHBS1=280HBS45HBS2=240HBS7級選擇小齒輪齒數(shù)Z1取Z2141

Z2Z1i16.72721141.246則齒數(shù)比

uZ21416.714

誤差極小，可以允許Z1 21選旋角 820初選15機械設(shè)計課程設(shè)計計算說明書機械設(shè)計課程設(shè)計計算說明書32PAGE7頁ZV1ZV2

Z1cos315Z2cos315

21cos3 141cos315

23.302156.4548-8

YFa12.694

YFa22.146齒寬系數(shù)d1.0tan tan206）tann 0.3768t cos cos15t20.6469tb sinsincossin15cos20b b14.0761b1 t 1 [(Z2cos)2(Zcos)21 t

(Z2cos)2(Zcos)2(ZZ)sin]ot

2 2 t

1 2 t 1 [2222]2.5421Z d

tan1121tan151.79122osb sintost2cos14.0761sin20.6469cos20.6469（1）ZH

2.4247（2）32kT1u32kT1u1ZHZE2 u()dH3 21.131.77410 6.7141312.5426.714(2.4247189.8539)2

31.975mmn（3）md1cos31.975cos151.47mmnZ1 21取mn2.5mm1.7911按1得Y111.515

0.875 120 120F2T1cost mZ

b

mnZ1dcosn1機械設(shè)計課程設(shè)計計算說明書機械設(shè)計課程設(shè)計計算說明書32PAGE9頁則KFYY

2KTcos2YY

21.131.774103os212.6940.875F

tFabmZ2m3

14.58611.6272.53 Fn d1n模數(shù) 即mn2.5mm（4）amn(Z1Z2)2.5(21141)2cos 2cos15中距 a210mm（5）arccosmn(Z1Z2)arccos2.5(21141)15.359（6）

mn cos

2a2.5cos15.359

2.593

2210（7）d1Z1mt212.59354.453d2Z2mt1412.593365.613b2dd1154.45354.45355mmb1b2(2~3)58mm231.774103（8）1 1167.025Nd1 54.453rttnt1167.0250.3768439.735NFFtan1167.025tan15.359320.554Na t（9）Vd1n1

54.45314404.106m/s60000 60000由表8-4選擇7級精度輸入功率小齒輪轉(zhuǎn)速齒數(shù)比小齒輪轉(zhuǎn)矩載荷系數(shù)K4.648214.0954.804207.3301.140GrHBS1=280HBS45HBS2=240HBS7級選擇小齒輪齒數(shù)Z129取Z2140則齒數(shù)比uZ21404.828

Z2Z1i14.80429139.316誤差極小，可以允許Z1 29選旋角 820初選15ZV1ZV2

Z1cos315Z2cos315

29cos3 140cos315

32.179155.345由表8-8查齒形數(shù)2.489 22.147齒寬系數(shù)d1.0tan tan206）tann 0.3768t cos cos15t20.6469tb sinsincossin15cos20b b14.0761b1 t 1 [(Z2cos)2(Zcos)21 t

(Z2cos)2(Zcos)2(ZZ)sin]ot

2 t

1 2 t 1 [9229s220.93577

0220s29)n]1.6761Z d

tan1129tan152.47322osb sintost2cos14.0761sin20.6469cos20.6469（1）ZH

2.4247（2）機械設(shè)計課程設(shè)計計算說明書機械設(shè)計課程設(shè)計計算說明書32PAGE32頁32kT1u32kT1u1ZHZE2 u()dH3 11.67621.1207.3301034.82814.828(2.4247539)2

62.101mmn（3）md1cos62.101cos152.068mmnZ1 29取mn3mm2.4731按1得Y111.515

0.875 120 120F2T1cost mZ

b

mnZ1dcosn1則KFYY

2KTcos2YY

21.1207.3313os212.4890.875F

tFabm

1 Z2m3

23.24712921.67633 Fn d1n模數(shù) 即mn（4）amn(Z1Z2)3(29140)2cos 2cos15中距 a263mm（5）arccosmn(Z1Z2)arccos3(29140)15.4472a 2263（6）m mn 3 3.112t cos cos15.447（7）d1Z1mt293.11290.260d2Z2mt1403.112435.68b2dd1190.26090.26090mmb1b2(2~3)93mm2207.33103（8）1 4594.062Nd1 90.26rttnt4594.0620.37681731.042NFFtan4594.062tan15.4471269.471Na t（9）Vd1n1

90.26214.0951.012m/s60000 60000高速級低速級齒數(shù)Z2114129高速級低速級齒數(shù)Z2114129140中心距a210263法面模數(shù)mn2.53端面模數(shù)mt2.5933.112螺旋角15.359°15.447°n20°20°t20.6469°20.6469°齒寬58559390標(biāo)準(zhǔn)齒頂高系數(shù)ham*11標(biāo)準(zhǔn)頂隙系數(shù)c*0.250.25分度圓直徑d54.453365.61390.26435.68齒頂高h(yuǎn)a2.53齒根高h(yuǎn)f3.1253.75齒全高h(yuǎn)5.6256.75齒頂圓直徑da59.453370.61396.26441.68齒根圓直徑df48.203359.36382.76428.18基圓直徑db50.956342.13084.463407.697mt

mncostntnnt coshh*mma a n nf a h(h*f a hhfd mnZcosdaddfd2hfdbdost四、軸的設(shè)計功率Kw轉(zhuǎn)矩N·m轉(zhuǎn)速r/min齒輪分度圓直徑mm壓力角4.79131.774144054.45320°作用在齒輪上的力231.7741031 1167.025Nd1tan

54.453

tan20FF t1167.025 440.495Nr tcos cos15.359FFtan1167.025tan15.359320.554Na t4.79131440初確定的最直徑 取4.791314403n2dmin3n2

115 17.168mmddmin1.0317.683mm聯(lián)軸器

KA1.5

TcaKAT1.531.77447.661N·m選材45調(diào)鋼 選彈性銷聯(lián)器選型號LX3 軸直徑為d38mm 軸長度為L82mm公稱轉(zhuǎn)矩[T]1250N·m電機型號132S 直徑D38mm軸的結(jié)構(gòu)設(shè)計軸承7008AC d×D×B=40×68×151）考慮聯(lián)軸器的軸向定位I-II軸段右端需制出定位軸肩，取軸肩高度h=6mm（h>0.07d）則d（2-3）=36mmD=40mm82mm，為了保證軸段長度應(yīng)比80mm2）3）平鍵：L=40mm，公稱尺寸b=8mm，h=7mm功率Kw轉(zhuǎn)矩N·m轉(zhuǎn)速r/min大齒輪分度圓直徑mm壓力角4.648207.330214.095365.61320°作用在齒輪上的力2207.331031 1134.15Nd 365.613tan tan20FF t1134.15 428.086Nr tcos cos15.359FFtan1134.15tan15.359311.524Na t4.6483214.095初確定的最直徑 取4.6483214.0953n2dmin3n2

115 ddmin1.0333.043mm功率Kw轉(zhuǎn)矩N·m轉(zhuǎn)速r/min小齒輪分度圓直徑mm壓力角4.648207.330214.09590.2620°作用在齒輪上的力2207.331031 4594.062Ndtan

90.26

tan20FF t4594.062 1734.766Nr tcos cos15.447FFtan4594.062tan15.4471269.471Na t初確定的最直徑 取115軸的結(jié)構(gòu)設(shè)計1）承7208AC d×D×B=40×80×18選擇角接觸球軸承2）平鍵：小齒輪：L×b×h=12×8×80大齒輪：L×b×h=12×8×40功率Kw轉(zhuǎn)矩N·m轉(zhuǎn)速r/min齒輪分度圓直徑mm壓力角4.509966.29444.563435.6820°作用在齒輪上的力2966.2941031 4435.797Ndtan

435.68

tan20FF t4435.797 1675.004Nr tcos cos15.447FFtan4435.797tan15.4471225.738Na t初確定的最直徑 取115d d A min 033

115 53.588mm4.509344.563ddmin1.034.509344.563軸的結(jié)構(gòu)設(shè)計1）承7015AC d×D×B=75×115×20選擇角接觸球軸承2）平鍵：齒輪：L×b×h=22×14×70連接聯(lián)軸器的軸：L×b×h=18×11×90五、裝配圖六、軸的校核1、高速軸校核1）1167.025NRH2880.685N

FtL2RH2(L2L3)RH1286.340NMHRH1L2RH243065.5062）Fr2(L2)Ma

N·mFrRV1RV21151.87N 2288.625NMV1222841.248NMV2214113.763NMHM22MHM22V1

48747.927

N·mMHMHM22V2

45319.269N·m4）T0.593177418746.66N·m(T)2M(T)2M21

52228.323N·m(T)2(T)2M22

N·m確定軸的危險截面：ca

Mca1W

52228.3230.1

3.235[]60MPa滿足軸的強度要求2、中間軸校核1）2)RH2)RH22372.145N RH13356.067NMH1RH213110.255NMH2RH2109118.671NFLF(LL)2d2

(LLL)02 r11 r2 1 2 2

V2 1 2 311654.095N 2347.415NMV左105035.033NMV2右2L315981.09NMV

MV1

Fa1d147743.8072

N

MV2左

MV2

Fa2d240967.5222

N·mM1M M22H1V1右M M22M M22H1V1右M M22H2V2左M M22H2V2右

237588.592N·mM MM M22H1V1左116555.662N110282.726N4）T0.59207.33103122324.75）Mca1左M1左237588.592N

N·mMca1右

))2M21右

N·m)2)2M22左

168963.175

N

Mca2右M2右110282.726N·m確定軸的危險截面：Mca1右250317.36731.484[]60MPaca W

0.1433滿足軸的強度要求3、低速軸校核1）RH2)0RH21375.578N RH13060.219NMHRH1L1RH2L2166169.870

N·m2）Fa1d1FLR(LL)02 r1 V2 1 21369.356N 22044.36NMHRH1L1RH2L2166169.8703）2)Ma0FrRV1RV2

N·m1369.356N 22044.36NMV1RV1L120056.031

N

MV2RV2L2246958.688

N·mMHM22MHM22V1

167375.835

N·mMHMHM22V2

297659.234

N·m(T)2M215）T(T)2M21

N·m6）

ca1左

167375.835

N·m(T)2(T)2M22

643141.024

N·m確定軸的危險截面：Mca1右643141.02412.561[]60MPaca W

0.1803滿足軸的強度要求七、軸承的校核1、高速軸承的校核R2R2R2V1 H1

324.122N

R2

926.774NR2R2V2 H2S10.68R1220.403NA1R2R2V2 H2

S20.68R2630.206NA2S2630.206NA12.933eR1

A20.68eR2

（e0.68）A/R>eA/ReXYXY0.410.8710因軸承在運轉(zhuǎn)中有中等沖擊載荷，按表10-5，取fp1.2P1fp(X1R1Y1A1)1152.061P2fp(X2R2Y2A2)1112.129因為P1P2106 C

106 19000 3Lh

( 60n

( 6014401152.061

51918.258h10.816年 故合2、中間軸承校核R2R2R2V1 H1

3741.553N

R2

2397.451NR2R2V2 R2R2V2 H2合21104.053NS1Fa合S2A1FaS22734.319N

S20.68R21630.266NA2S21630.266NA10.731eR1

A20.68eR2

（e0.68）A/R>eA/ReXYXY0.410.8710因軸承在運轉(zhuǎn)中有中等沖擊載荷，按表10-5，取fp1.2P1fp(X1R1Y1A1)4695.473P2fp(X2R2Y2A2)2876.941因為P1P2106 C

106

35.21033Lh

( 60n

( 60214.0954695.473

32796.853h6.833年 故合3、低速軸承校核R2R2R2V1 H1

3082.428N

R2

2464.066NR2R2V2 H2S1R2R2V2 H2S2FaS1A1S12096.051N

S20.68R21675.565NA2FaS13321.789NA10.68eR1

A21.348eR2

（e0.68）A/R>eA/ReXYXY0.410.8710因軸承在運轉(zhuǎn)中有中等沖擊載荷，按表10-5，取fp1.2P1fp(X1R1Y1A1)3698.914P2fp(X2R2Y2A2)4680.268因為P2P1106 C

106 46.83Lh

( 60n

( 6044.5634680.268

373938.104h77.904年 故合八、鍵的校核根據(jù)d=30mm，選擇鍵寬b=8mm,鍵高h(yuǎn)=7mm鍵長L=70mm，選用圓頭平鍵。2）校核鍵的連接強度453-1]p100~120a取]p110a，鍵工作長度lLb70862mm鍵與輪轂鍵槽的接觸高度k0.5h0.573.5mm103231.774103

故符合p kld

3.562

9.762 [鍵的標(biāo)記為：鍵8770GB1096792、中間軸鍵的校核1）選擇平鍵的尺寸根據(jù)d=43mm，選擇鍵寬b=12mm,鍵高h(yuǎn)=8mm鍵長L=40mm，選用圓頭平鍵。2）校核鍵的連接強度453-1]p100~120a取]p110a，鍵工作長度lLb401228mm鍵與輪轂鍵槽的接觸高度k0.5h0.584mm1032207.33103

故符合p kld

428

86.10 [128791）選擇平鍵的尺寸根據(jù)d=43mm，選擇鍵寬b=12mm,鍵高h(yuǎn)=8mm鍵長L=80mm，選用圓頭平鍵。2）