V帶-二級(jí)展開式圓柱齒輪減速器設(shè)計(jì)說明書Ⅰ

1、f Hel iWt 008機(jī)械設(shè)計(jì)課程設(shè)計(jì)原始資料一、設(shè)計(jì)題目熱處理車間零件輸送設(shè)備的傳動(dòng)裝備二、運(yùn)動(dòng)簡(jiǎn)圖1 電動(dòng)機(jī) 2 V帶3齒輪減速器4聯(lián)軸器5一滾筒6輸送帶三、工作條件該裝置單向傳送，載荷平穩(wěn)，空載起動(dòng)，兩班制工作，使用期限5年(每年按300 天計(jì)算)，輸送帶的速度容許誤差為i5%.四、原始數(shù)據(jù)滾筒直徑D (mm): 320運(yùn)輸帶速度 V (m/s): 0.75滾筒軸轉(zhuǎn)矩T (N m): 900五、設(shè)計(jì)工作量1減速器總裝配圖一張2齒輪、軸零件圖各一張3設(shè)計(jì)說明書一份六、設(shè)計(jì)說明書內(nèi)容1 .運(yùn)動(dòng)簡(jiǎn)圖和原始數(shù)據(jù)2 .電動(dòng)機(jī)選擇3 .主要參數(shù)計(jì)算4 . V帶傳動(dòng)的設(shè)計(jì)計(jì)算5 .減速器斜齒圓柱齒

2、輪傳動(dòng)的設(shè)計(jì)計(jì)算6 .機(jī)座結(jié)構(gòu)尺寸計(jì)算7 .軸的設(shè)計(jì)計(jì)算8 .鍵、聯(lián)軸器等的選擇和校核9 .滾動(dòng)軸承及密封的選擇和校核10 .潤(rùn)滑材料及齒輪、軸承的潤(rùn)滑方法11 .齒輪、軸承配合的選擇12 .參考文獻(xiàn)七、設(shè)計(jì)要求1.各設(shè)計(jì)階段完成后，需經(jīng)指導(dǎo)老師審閱同意后方能進(jìn)行下階段的設(shè)計(jì)；ctiviies, compre hensie adtampig Safey FoundaionTroubleSooIng manageme nt mehaism, give fl pay t roe of echnia spe rvn and r_l at management,bproveprocessmanagem

3、entThisearcompleethebokr l owe hea de eakage b oi e pesse, a major ri sk management, compleed 29 of great risks and 3 Genera problems of governanceCompetchemistylaconstthermalcontrolandcompeethebolesaeitegaemanagement,hostsa.g vi brain of 0 se ntac - behnolu calpr ojects, scha sCompetesupecrt ca 6IM

4、W I nie smula.n sysemdeel opme nt ad appiat cualngaerMeCSa e tanSormaton, thetansformatonof des.riatonwaseate,theuniwaer ofccopehesetrmetaddischargevav amil5keytehnolgical gruphelhsmprI e d S iece adtehnolgy innovationsfurthericrese d steg he the chaace - t cs of sper crial unit majr i sse, gaualy c

5、leai ng te pariulaiy of spelai la uni andeg ulaiy Develped mot or oi tme maagement, sitchaI >n - es st»is coaadedm- s e it sftae, mpr oes te prducti on eel of ea manag -et incrra- I iesmet i nsi ece and echnolg, reortng siece and echnolgy proeIsad14echni ca pr ojet tta cos perentge of te tal

6、 a nnua pr oductin outut of 05 Lagesaecoafie poee pa nt le ggs de suluri ain, de mfcain compee develpmentadaplcainof -y ehnologi-proect,wontenamal siece andtehnolgyprogesseondprie60MWspecriiaun- optmie d contrl satges a ndte 633M W deelpmet ad apaatonif on lie smuaton sstm for spelaicalunissupeoca U

7、m w uni s of tri ne drive boie fed lump se of com prhe nse teamet of defes Daa ng echnol ogy resetvey one or to adtidMnw-ifmainechnolgy achi nts the . ompay n e ehi - a po ifmai - ne chnolgy bechmakk ngete - ri Rea i adi ntea nce h mpr furte M odiy t e i nsetiona ndad staonaula ba sssa ndiig w ork p

8、 roc chekkngi nseti on pre ctD pe nig the BFS s_ a nd mpl e mante nace ifot on shRe - rganii RB lgi ca a - de nse te scc ofteRBInoaigthemehai of m nace e nt impl e nte a pr-e ct s_ Succe fulcompleinof twatnom - us m- - nance eiaiiy m pr st diy mpl ntigto c ll mantea nce prjet th l48 % and4 2 3 % tvl

9、y plstw - ci culai ng pum - s re a 一 o ha ul of fur Ml sm nace tt getiPote the workof igand con smpt on re - ucig compl ee the uni con pin diosi s p a nte-b nce1 eO eegy svig proe Us'<con_ shodL a dhe e to "trie on t he nom. bee of mproving outech2.在指定的教室內(nèi)進(jìn)行設(shè)計(jì)電動(dòng)機(jī)的選擇est 0 eegys-ing pro. C

10、s'mon' -shoud. dhe e to ecnomicbe.is of im proving ootrac、電動(dòng)機(jī)輸入功率Pw60v2 二 Rn60 0.75 22 3.14 0.32=44.785r / minPwTnw9550900 44.7859550= 4.219kw、電動(dòng)機(jī)輸出功率Pd其中總效率為3232 =滯 軸承X"齒輪工"聯(lián)軸 m ” 滾筒=0.96X 0.993 父0.972父 0.99 父 0.96 = 0.833Pw 4.219Pd-5.083kw0.833查表可得Y132S-4符合要求，故選用它。Y132S-4（同步轉(zhuǎn)速144

11、0r/min , 4極）的相關(guān)參數(shù)額定功率滿載轉(zhuǎn)速堵轉(zhuǎn)轉(zhuǎn)矩額定轉(zhuǎn)矩最大轉(zhuǎn)矩額定轉(zhuǎn)矩質(zhì)量5.5<w1440 r/min2200N mm2300N mm68 kg二.主要參數(shù)的計(jì)算一、確定總傳動(dòng)比和分配各級(jí)傳動(dòng)比傳動(dòng)裝置的總傳動(dòng)比i總=nm = 衛(wèi)上=32.15 nw44.785查表可得V帶傳動(dòng)單級(jí)傳動(dòng)比常用值24,圓柱齒輪傳動(dòng)單級(jí)傳動(dòng)比常用值為35,展開式二級(jí)圓柱齒輪減速器i1定(1.31.5)i2。初分傳動(dòng)比為 iV帶=2.5, 1=4.243 i2=3.031二、計(jì)算傳動(dòng)裝置的運(yùn)動(dòng)和動(dòng)力參數(shù)c-i - , anda on. TroUl e-ool ng manageme nt m_c.

12、, give ul pay to.of ecnca sue ovedpro maageme”his yea 1owe hea de -kag*”ie r and 3 Genera problemna - Cmp cemisty la cn-r la - “eg- ma a- of 0 - nt*c a. tchnobig -"o|e .casCmpete suect c. 6IMW .nie a.”. on of c cu-I ng water mcc sad”. ，the ta.rm .of 一zton w a-e wate, the ui -r supiy sysem of co

13、pehe tr - met a. ,cage- modKaton of c. m 5 key gro.hhs dSence ad teCnolgy innovai on s ur hericese d. Streg he the caa"t - of islu- grd " iulaiyof -pecii eg ulaiy me cacin tmes sastcs coaa-dme . t sft-e, mpr on1 of lea maag -etlncra- d i - eti n-ene and ecnolgy andtec oects ad 14 ecni ca p

14、rojec tota cs apr of125%. "LaH.c_cafird po-we pa nt keg- - sului in, - nirlcain cmpete develadapl-n of pro.a w Iciene and tecnolgy proges sc CH -pecica uis optmie d cntrl ID. W d - lpmet ad ap. -.atonfor -pecii-l.ni* sue ctcl M W ui s of ofcm prhe n teamet of lebcts Dtang tec adthid.an-wie, inb

15、maion me ntS -s nnm1d "I inbmai.nte cnolgy beCma- ng ete " ".a ir a impr o-d "the. M ion" ndads .d stanadson arrg u. ba ndadiing Ce-ng ad i eP onre * De "+s , a nd impl -etsmante Re -.n” RB "c nuethe lu-es 0fte RB Ino” 0fm.tenace manng-e nt imp - e nttd a pr i. c m

16、.a.r s .'-u cmp"of ”nanne . e".y impr o-d 1st. diy c1 e-e mantea nce pr” 3 s 48.7% and- 1speci-yAccm pls - a.d o-eha u of fu " - m-te nace -ms to" exe - e sg a nd cmpl eethe uit enegy cns- pin diagosi ".nt wter b- nce9本裝置從電動(dòng)機(jī)到工作機(jī)有三軸，依次為I, H,田軸，則1、各軸轉(zhuǎn)速n 1440n -576r.miniv

17、帶2.5nz 576nn =135.753 mini1 4.243 nn 135.753rnm = =44.288 mini23.0312、各軸功率R =Pd,i =兄仆帶=5.5M0.96=5.28kwPu =R7u =R”軸承式力齒輪=5.28M0.99M0.97 = 5.070kwPm =Rw =Pu 父"軸承父力齒輪=5.070M0.99M0.97 = 4.869kw3、各軸轉(zhuǎn)矩Td = 9550 互=9550-5- = 36.476 N mnd14401=TdiV帶n0i =36.476m2.5m0.96=87.542N mTn =Tli/iu =87.542M4.243M

18、0.99M0.97 = 356.695N mTm =Tni2% 皿=356.695父3.031 父0.99父 0.97 = 1038.221N m表2項(xiàng)目電機(jī)軸高速軸I中間軸H低速軸m轉(zhuǎn)速(r/min)1440576135.75362.706功率(kw)5.55.285.0704.869test 0 eegyig proje csSecond we shoUd a de e to "tree" ont he ecnomc beeis of mprovi3轉(zhuǎn)矩(NLm)36.47687.542356.6951038.221傳動(dòng)比2.54.2433.031效率0.960.960

19、.922三V帶傳動(dòng)的設(shè)計(jì)計(jì)算一、確定計(jì)算功率Pca查表可得工作情況系數(shù)kA =1.2故 PCa=kA P =1.2 5.5 = 6.6kw二、選擇V帶的帶型根據(jù)Pca、n,由圖可得選用A型帶。三、確定帶輪的基準(zhǔn)直徑dd并驗(yàn)算帶速v1、初選小帶輪的基準(zhǔn)直徑ddi。查表8-6和8-8可得選取小帶輪的基準(zhǔn)直徑dd1 = 90mm2、驗(yàn)算帶速v按計(jì)算式驗(yàn)算帶的速度v=4° .6.782m. s60 100060 1000因?yàn)?m/s < v <30m/s故此帶速合適。3、計(jì)算大帶輪的基準(zhǔn)直徑dd2按式(8-15a)計(jì)算大帶輪的基準(zhǔn)直徑dd2 =iv帶dd1 = 2.5父90 =

20、225mm根據(jù)教材表 8-8,圓整得 dd2 = 224mm。4、確定V帶的中心距a和基準(zhǔn)直徑Ld(1)按計(jì)算式初定中心距 a。= 500mm( 0.艱 + dd2與a。W2d(1 + Q 2 )(2)按計(jì)算式計(jì)算所需的基準(zhǔn)長(zhǎng)度c-i - , anda on. TroUl e-ool ng manageme nt m_c., give ul pay to. of ecnca sue ovedpro maageme”his yea 1owe hea de -kag*”ie r and 3 Genera problem na - Cmp cemisty la cn-r la - “eg- ma a

21、- of 0 - nt*c a. tchnobig -"o|e .casCmpete suect c. 6IMW .nie a.”. on of c cu-I ng water mcc sad”. ，the ta.rm .of 一zton w a-e wate, the ui -r supiy sysem of copehe tr - met a. ,cage- modKaton of c. m 5 key gro.hhs dSence ad teCnolgy innovai on s ur hericese d. Streg he the caa"t - of islu-

22、 grd " iulaiy of -pecii eg ulaiy me cacin tmes sastcs coaa-dme . t sft-e, mpr on1 of lea maag -etlncra- d i - eti n-ene and ecnolgy andtec oects ad 14 ecni ca projec tota cs apr of125%. "LaH.c_cafird po-we pa nt keg- - sului in, - nirlcain cmpete develad apl-n of pro.a w Iciene and tecnolg

23、y proges sc CH -pecica uis optmie d cntrl ID. W d - lpmet ad ap. -.atonfor -pecii-l.ni* sue ctcl M W ui s of ofcm prhe n teamet of lebcts Dta ng tec adthid.an-wie, inbmaion me ntS -s nnm1d "I inbmai .nte cnolgy beCma- ng ete " ".a ir a impr o-d "the. M ion" ndads .d stanadso

24、n arrg u. ba ndadiing Ce-ng ad i eP onre * De "+s , a nd impl -etsmante Re-.n” RB "c nuethe lu-es 0fte RBIno” 0fm.tenace manng-e nt imp - e nttd a pr i. c m.a.r s .'-u cmp" of ”nanne . e".y impr o-d 1st. diy c1 e-e mantea nce pr” 3 s 48.7% and- 1speci-yAccm pls - a .d o-eha u

25、 of fu " - m-te nace -ms to" exe - e sg a nd cmpl eethe uit enegy cns- pin diagosi ".nt wter b- nceest 0 eegys-ing pro. Cs'mon' -shoud. dhe e to ecnomicbe.is of im proving ootrac2, C 一，、 I ' (dd2-ddi)二(224 -90)2Ld0 2a0 (dd1dd2)d"=2 430 (90 224) -24a024 430=1364mm查表可選帶

26、的基準(zhǔn)長(zhǎng)度Ld = 1400mm(3)按計(jì)算式計(jì)算實(shí)際中心距aLd -Ld01400 -1364、a : a0 = (430)mm = 448mm22中心距的變化范圍為(427 mm |_ 490 mm 5、驗(yàn)算小帶輪上的包角：1n57.3,57.3”.，、1：1801 - dd2 - dd1 =180，- 224 -90 = 163 ” _ 120 -a4486、計(jì)算帶的根數(shù)(1)計(jì)算單根V帶的額定功率Pr由 dd1 =90mm0 n =1440r/min 查表可得 P0 =1.064kw根據(jù) n =1440r/min, i =2.7和 A 型帶，查表可得 AP0 =0.16*w、 = 0.

27、956、 h =0.96。故 Pr NRP0 k.kL F1.064 0.169 0.956 0.96-1.132kw(2)計(jì)算V帶的根數(shù)ZZ=PL = _66_ =5.830 故取V帶根數(shù)為6根Pr1.1327、計(jì)算單根V帶的初拉力的最小值(F°Lin查表可得A型帶的單位長(zhǎng)度質(zhì)量q=0.10kgm2.5-k- Pca22.5-0.956 6.6F0 min= 500:% qv2 =(5000.1 6.782N=136Jk Zv0.9566 6.782應(yīng)使帶的實(shí)際初拉力F0 >( F0 )mintest 0 eegyig proje csSecond we shoUd adee

28、 to "tree" ont he ecnomc beeis of improving o" h58、計(jì)算壓軸力F壓軸力的最小值為_ _： i163Fp min =2Z Fo minSin： = 2 6 136 Sin - = 1614四 減速器斜齒圓柱齒輪傳動(dòng)的設(shè)計(jì)計(jì)算、高速級(jí)齒輪1、選定齒輪類型、精度等級(jí)、材料及齒數(shù)(1)按圖所示的傳動(dòng)方案，選用斜齒圓柱齒輪傳動(dòng)。(2)運(yùn)輸裝置為一般工作機(jī)器，速度不高，故選用7級(jí)精度。(3)材料選擇：查表可選擇小齒輪材料為40Cr (調(diào)質(zhì))，硬度為280HBS大齒輪材料為45鋼(調(diào)質(zhì))，硬度為240HBs二者材料硬度差為40H

29、BS(4)選小齒輪齒數(shù)Z1=20,大齒輪齒數(shù)Z2 = 4.243父20 = 85 ,取Z2 = 85(5)選取螺旋角，初選螺旋角P =142、按齒面接觸強(qiáng)度設(shè)計(jì)，按計(jì)算式試算即dt3JktT1 u±1ZhZe u I-H 1test 0 eegy-igproje CsSecond we shoUd a dheeto 1r-"on t7(1)確定公式內(nèi)的各計(jì)算數(shù)值試選 kt =1.6,由圖 10-26 % =0.740 ,之=0.820®有% = %+為2 =1.560小齒輪傳遞轉(zhuǎn)矩T1 =87.542NLm查圖10-30可選取區(qū)域系數(shù)Zh =2.433 查表10-

30、7可選取齒寬系數(shù) 3 =11查表10-6可得材料的彈性影響系數(shù)Ze =189.8MP3。查圖10-21d得按齒面硬度選取小齒輪的接觸疲勞強(qiáng)度極限仃Hlim1 =600MPa，大齒輪的接觸疲勞強(qiáng)度極限 仃Hlim2 = 550MPa按計(jì)算式計(jì)算應(yīng)力循環(huán)次數(shù)N1=60njLh=60 576 1 2 8 300 5)=8.294 108N28.294 1084.243= 1.95 108查圖可選取接觸疲勞壽命系數(shù)kHN1 =1.02 , kHN2 =1.12f Hel iWt 008計(jì)算接觸疲勞許用應(yīng)力 取失效概率為1%安全系數(shù)s = 1,按計(jì)算式(10-12)得 = kHN1；一 Hlim1 =1

31、.02 600 =612MPaSkHN2SHHm2二12"化旭l-H 1-H 2612616二614MPatest 0 .egy-ig proje cs' nd we shoUd adee to 1r_on t he ecnomc beets of improving out h9(2)計(jì)算相關(guān)數(shù)值試算小齒輪分度圓直徑明，由計(jì)算公式得d1t -32 1.6 87.542 1000 5.24 2.433 189.8 21 1.5604.24614=50.07mm計(jì)算圓周速度二 dtn1v 二60 1000二 50.07 57660 1000= 1.509 m s計(jì)算齒寬b及模數(shù)

32、mntb=：，dd1t=1 50.07 = 50.07mmdt cos :50.07 cos14 小“20mnt = = 2.429mm h -2.25m,t -2.25 2.429rnm-5.466rnmb 50.07小=9.16h 5.466 計(jì)算總相重合度4-：=0.3181dzitan ： =0.318 1 20 tan14： =1.586計(jì)算載荷系數(shù)k 查表可得使用系數(shù)kA =1 ,根據(jù)v=1.509im/s , 7級(jí)精度，查表10-8可得動(dòng)載系數(shù)kV =1.07,由表10-4查得K”的值與直齒輪的相同，為1.419 kF p = 1.350, %0f = kp0f =1.4故載荷系

33、數(shù)k =kAkVkH.kH二=1 1.07 1.4 1.419 = 2.126按實(shí)際的載荷系數(shù)校正所算得的分度圓直徑，按計(jì)算式得di =ditk =45.8142.126kt1.6=55.046mmtest 0 eegyig proje csSecond we shoUd a de e to "tree" ont he ecnomc beeis of mprovi11計(jì)算模數(shù)0mn 二d1 cos :55.046 cosi4Z120=2.671mm3、按齒根曲強(qiáng)度設(shè)計(jì)，按計(jì)算式（10-17）試算即mn 12k 1TpYc2oPs$ Y3乙2二（1）確定公式內(nèi)的各計(jì)算數(shù)值、計(jì)

34、算載荷系數(shù)k -kAkvkF.kF >.-1 1.07 1.4 1.35 = 2.022根據(jù)縱向重合度 鄧=1.586,查圖10-28可得螺旋角影響系數(shù)Yp = 0.88查圖可選取區(qū)域系數(shù)Zh=2.433 ,沁=0.875則有十名1二4= 1.67查表取應(yīng)力校正系數(shù) YSa1 =1.569, YSa2 =1.783o查表取齒形系數(shù)YFa1 =2.724, YFa2 =2.194 （線性插值法）查圖10-20C可得小齒輪的彎曲疲勞強(qiáng)度極限FE1= 500MPa ,大齒輪的彎曲疲勞強(qiáng)度極限= 380MR查圖可取彎曲疲勞壽命系數(shù)kFN1=0.87, kFN2=0.90計(jì)算彎曲疲勞許用應(yīng)力,取彎

35、曲疲勞安全系數(shù)S = 1.4,按計(jì)算式（10-22）計(jì)算得on.Trul esooti ng managme nt mela-, gVe ulp - to roleof ecnca supeicese d. 'teg he Ihe caan_tns of. s. g7. l itid.anw, ifmain tecciveme ay-sng tepari_h of fi.-"I ifmaiegn te cno" becmakkFN1k 二kFN 2 FE2v-n and relztuaiy mame I.p m.ng.tTca .in s*.aai ad mai .

36、ea .|e hhs mpr.ved fiute.his . cmp. I-dme "sf - empr .daisad stands0.87 5001.4310.714MPa0.90 380hebo.r l owe h- de -kge loi e pesuesk m.lg-.l, onl of lea maag -etlncra- d ivesmet ionarrg ula ba sis - ndadzig -1.4of g - r and3 G- -c ng ad i .set .re c.De =244.286 MPanac. Comp chmi sryla cnsr-mal

37、aiI-gd ma saig.ibrain of 0 s-ntic ad tchnolgnd mpl -es manteo- Cs ad 14 ecninane iformat-a projel Iota cs talannu- pr of.*. "a . 'rlanii - R log . nuete -u-es of the ofm_te-Ki. po-ee panI eg- - sului in, de .“caincmpeed-nane ma.ng-e .timp - eadCmp-esu-cInttd a pr >e c maa.rsystm.，- cmp-i

38、napl naton of te.a- >nie smuatin s d lo W .tnom-pro- - a onof ni .uatn.IICno”us ma . tenanne , eiaiiy mpr ovd sta dly "p-meprogtw cco.d-pm二t：l-p.heiansormain of l 5 k" cit-a uis optimise d cnt.isa - esand423% -peci -nd te 631MW d - lpm-l ad ap.onf on ie-u-ion for lupecii-lunissue",

39、cm pls t- . li -la a.d oveha u of fu Ml s m_te na- t_ms to Ht execsecit >>.W ui s of Iuri ne drVe boie fedPromoIe Ihe wrkcal h- sg a ofcm prhe . teameth ."of -acts DtaSiene a. ino3 innovai on s Ur hernd cigcmpl eethe ui enegyng one or Iw adcnsum pti. dagosi s plant wter baance計(jì)算大、小齒輪的YFaY

40、Sa并加以計(jì)算YFalYSal匕12.724 1.569 , =0.014310.714YFa2Ysa22.194 1.783 (-：-=0.0 16lcF L244.286大齒輪的數(shù)值較大。(2)設(shè)計(jì)計(jì)算 3mn -2 2.022 87.542 1000 0.88 cos2 141 202 1.5860.016 = 1.979mm對(duì)比計(jì)算結(jié)果，由齒面接觸疲勞強(qiáng)度計(jì)算的法面模數(shù)大于由齒根彎曲疲勞強(qiáng)度計(jì)算的法面模數(shù)，故取 mn=2mm,已可滿足彎曲強(qiáng)度，但為了同時(shí)滿足接觸疲勞強(qiáng)度，需按接觸疲勞強(qiáng)度算得的分度圓直徑d1 = 55.046mm來計(jì)算應(yīng)有的齒數(shù)，于是有r d1cos ： 55.046

41、cos14 ”Z1 = = = 26.705mn2取Z1=27,貝122=1乙=4.24327之1154、幾何尺寸計(jì)算(1)計(jì)算中心距乙 Z2 mn27 115 22cos :2 cos14=146.347mm將中心距圓整為a=147mm。(2)按圓整后的中心距修正螺旋角乙 Z2 mn27 1152-arccos 二 arccos =14.9862a2 147因P值改變不多，故參數(shù)%、kp、ZH等不必修正。(3)計(jì)算大、小齒輪的分度圓直徑乙mn27 2d1d211= = 55.901 mmcos :cos14.986Z2mn115 2-= =238.099 mmcos :cos14.986(4

42、)計(jì)算齒輪寬度b = ：,dd1 =1 55.901 -55.901mm圓整后取 B1 =55mm , B2 =60mm。、低速級(jí)齒輪1、選定齒輪類型、精度等級(jí)、材料及齒數(shù)(1)按圖所示的傳動(dòng)方案，選用斜齒圓柱齒輪傳動(dòng)。(2)運(yùn)輸裝置為一般工作機(jī)器，速度不高，故選用 7級(jí)精度。(3)材料選擇，在同一減速器各級(jí)小齒輪 (或大齒輪)的材料，沒有特殊情 況，應(yīng)選用相同牌號(hào)，以減少材料品種和工藝要求，故查表可選擇小齒輪材料為40Cr (調(diào)質(zhì))，硬度為52HRC大齒輪材料為45鋼(調(diào)質(zhì))，硬度為45HRC.(4)選小齒輪齒數(shù)Z3=23,大齒輪齒數(shù)Z4 = 23 3.031 = 70.924 70(5)選

43、取螺旋角，初選螺旋角P =142、按齒面接觸強(qiáng)度設(shè)計(jì)，按計(jì)算式試算即25 u'±1'ZhZe "2 / u工】'/(1)確定公式內(nèi)的各計(jì)算數(shù)值試選kt = 1.6小齒輪傳遞轉(zhuǎn)矩T2=356.695m查表10-7可選取齒寬系數(shù)d=1查圖10-26可選取區(qū)域系數(shù)13二4 =1.635Zh =2.433, &03 =0.765,名廓=0.870則有1查表可得材料的彈性影響系數(shù) Ze =189.8MP&。查圖得按齒面硬度選取小齒輪的接觸疲勞強(qiáng)度極限0Hlim3 =600MPa ,大齒cviescv atigF austggecasgvfi-t

44、oltcilsu- matuei.giecssageeyea elweeeekage - I issl jokageee29geatik-eel e g eaece st a c rc-il-<esealigaegstsaig-0fcate -g c jctsc s-ulc-r60MW i iuli yse -a itiuatgwat.stad we afma-arId"- st we u - at u rs> c eliv-erea icg fct c r-5kete-gc cs g u mii-e.a c-gai-tre g e catit csetca>sus

45、gad -kgt'Lla'tscilieg aity i- im a g siciissttisaidesue sweivtuclevaageeces-visectclg-etg sec t-lgjtatcl ctta c s tg tttl 一 tpu 015 agsl-liewe llgaduai. iclteaalcikeeg jtt ti secc-.ges se e (0mW su eciiluiti e c satgi. Wevl 1a aitiiltyte su cic-sui c 60m w u- te-it c r teae.etatgtc g sei Me

46、r-infomaio -i -i-saaree-fmat - e a kee ise Re - aeaiv-imi-.s-a d ar.dg-a-s a-ikdseckascje-.- eetaac-teReg-RB-g-se-seB-RBi.i cas itacgeree j ag se c ss -e-wa-itceiative se-.il- w eraeeleesv823e-v-rsw-eiefM sit a c te tog eiepwkg-is-ie - gui.slwtm es, 0 eergy svig pro| UsSicon、should a dhe e to "

47、trreont he ecnomic beiis of improving oo-rc輪的接觸疲勞強(qiáng)度極限C“m4 =550MPa按計(jì)算式計(jì)算應(yīng)力循環(huán)次數(shù)N3 =60n2jLh =60 135.753 1 2 8 300 5 =1.955 108N41.955 1083.031= 6.450 107查圖可選取接觸疲勞壽命系數(shù) *3=1.12, *4=1.18計(jì)算接觸疲勞許用應(yīng)力取失效概率為1%安全系數(shù)S = 1,于是得I-HkHN 3、H lim3= 1.12 600 = 672 MPakH 4 JHN4'” Hlim4 =1.18 550 =649MPa4 S672 649= 660

48、.5 MPa(2)計(jì)算相關(guān)數(shù)值試算小齒輪分度圓直徑必，由計(jì)算公式得3 52,2M1.6父3.567父105 4.031 i 2.433父 189.8)d3t76.848mm,1 1.673.031660.5計(jì)算圓周速度, _ d3tn2v 一60 1000二 76.848 135.75360 1000-0.546m s計(jì)算齒寬b'及模數(shù)mntb' = 3d3t =1 76.848 = 76.848mmmint '=d3t cos :Z376.848 cos1423=3.240mmh'u2.25mnt'=2.25 3.240 -7.29mmbj = 76.

49、848 h' - 7.29=10.54計(jì)算總相重合度建on.Troui eshooti ng managme nt m_c., gVe ul pay to. of ecnca sue o-d p- maageme”his yea 1 owe hea de eakage "i " r a-3 Genera problemnac. Cmp cemi sty la cn-r la - “eg- ma a- of 0 - nt. ad tchnobigoje» suca sCmpete suect ca 630MW mie ad app. on of c cuat

50、i ng water MC C tanSormaton,the ta.rm .of 一k" tc hs mpr .-ed Sene ad tecnolgy inno-ai on . Ur hericese d. Stegt he the caa"t - of is -la- of -pec.i eg ulaiy cacin .es s *coaa-dme . t sft_e, mpr“d.an-wie, inkmaion cme -s nn>. ".I inkmai.n e Cnolgy beCma. ng ete Liss." Rea ir a

51、hsimpr oved fute. . n.ars ad standsoves te prduci on l-el of ea manag -etlncra- d ivesmeti nlciene and ecnolgy reortng iciene and ecnolgypr onarrg ula ba ss - ndaOig w ce- ng ad i ns。 ”De .a nd impl -esmanteoecs ad 14 ecni caprojec tta cs aapr of125%. "ageicaecafird powe pa nt ,eg - sului in, - n“caincmpeed-elad apl-nof te .rganz >g Z. c nuete es 0fteR. 0fmiienace mant-e ntimp - e nttd a pr L c maa.rsystm.'-ssu cmplein of .tnomproec , andtecn010yus m. . tenance , eliaiiy m pr oved st-diy mplem