机械设计基础期末考试试题_答案解析

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111.ËÌ᦮*¯ᵨ3ᜮÈᱛ*®3mm,ÎÏÐÑᩚÒᔣÓ;12mm,ᑣᩚTk2ᙌ஺12.Õ᪗ie*ÄS×ᨵYZABCDEÚ-01*ÛÜ'B2240'⊤ßB1oà2240mm□13.×R;Ḅ:;b¥r4=180mm,kln,=940r/min,g;bḄ¥rd2=710kln=233r/min,ᑣᐸçឋè;éᦪe0.022஺214.ÎÄS×R;9ᔜ᪷×íîᙳᒴ*×Ḅ᪷ᦪF¿ñò10᪷஺(A)4(B)6(C)2(D)1015.Ñõböᔠ),øõbḄ⁚ᙊúûÐᑗ஺(A)ᑖᙊ(B)oᙊ(C)⁚ᙊ(D)õ᪷ᙊ16.᪗à¥õᙊüḄõ®15.7mm,õ⚔ᙊ¥r400mm,ᑣþõbḄõᦪ78o17.õbR;Ḅ᪗àᢣᑖᙊ=⁚ᙊÿᔠ018.Ḅᔠᜧ⊤ᔠḄᦪ____,஺19.!"#$%᪷'($%Ḅ)ᦪᦪ⌱+ᑐᐹᑐ.஺20.012Ḅ345lOONm,ᐸᑖᙊ2=550mm,ᑣᐸ⌴ḄᙊᕜB54000N,=ᔣB51455.9N—021.FGHI.“6215”ḄMNOPQᳫGH2=Sᑡ2ᑁ=75—஺mm22.0WᩭYFZGH[\H]^_,ᳫGH-[〉ᔠbcdḄ3ef%g஺(A)FZGH(B)ᳫGH23.mno₹OᢣmnrsIO஺r3L=l(l(r3)GHᡠ\H]Ḅᨬᜧo3g24.3GOᢣ{H]|4H]}4GOᢣ~H]}425.0▤GᵫGᜮG⚠Gᑖᡂ஺

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4eᜧÁ¢BÂᜧÃ3ḄᙌᦪrsÅ⚪Ç1,0È᜜ᔠ᪗Ë2ᙊÌᢞÎÏᐸТÑ5160mm.ÒḄᦪᑖÓ54=20,Z=44,«ÒḄ1⌕ÔÕÖ×஺2Çm=5dl=100d2=220dal=100+10=110da2=220+10=230dfl=100-12.5=87.5df2=220-12.5=207.5p=3.14*5=15.7s=e=7.852.Sàá:Z,=20,Z=40,Z=80,Z=Z=30,Z=90O«i,6=?23456Çn=n34(n/n)=(z/z)=34664n=nH6

5(n-n)/(n-n)=-(z/z1)=-4i,6=-76363-ஹçè(60ᑖ)1.᪀Ðᨵ1éêë஺2.᪀⌕ᨵn◤⌕ᨵ1íî஺3.☢ðᩚ᪀ñញᱯឋ᩽ᜳ஺=0,÷²eøSᦪK=1(A)Ba=0(B)0=0(C)᩽ᜳ9=0(D)k>l(E)k

6(A):;ᩚᐳ=2>B?᤯ᩚ:;ᩚᐳ=2>C?34ᙠ6.AB᪀CᙊEFGᢣABI0JᑮL▭BN=OḄᨬREF஺>A?ᳮTBN=OḄᨬᜧ>B?L▭BN=OḄᨬᜧ>C?L▭BN=OḄᨬR>D?ᳮTBN=OḄᨬR7.AB᪀ḄXYZGᢣABO[\6Ḅ]=:^01Ḅ_0`ᔣbḄᜳZ஺>A?ABO[\6Ḅ]=:^01Ḅ_0`ᔣ>B?ABO[\6Ḅ]=:d6=e>C?BO[\6Ḅᑗ=:^01Ḅ_0`ᔣ8.ghὶ[/⌕Gkl:Bmnboᕜᔣqrst⌴vw஺>A?olᔣqrst⌴lᔣY>B?olᔣxyz{|0sᐹᨵyᵨ>C?oᕜᔣqrst⌴vw>D?ᔂ`9.hὶ[t⌴0YG☠☢ḄᢴXY஺>A?☢Ḅ᥅Y>B?☢ḄᢴXY>C?O☢ḄᢴXY>D?O☢Ḅ᥅Y10.hὶ[Ḅ⚗/⌕ᑁGaᢥBm⌱hḄbᢥ⌕⌱hcᢥᑁF⌱hḄᒈ☢d¡¢£⌕¤᪥᪶ᐹ§2¨©ª«b-c-a-do>A?b-a-c-d>B?b-c-a-d>C?a-c-b-d>D?c-d-b-aILhὶ[°t⌴ḄᨬᜧvwT,²⌕t⌴ḄvwL5T,ᑣ³¨{h஺>A?´hµᜧᑮ1.5¶>B?´h·µᜧᑮ1.5¶>C?´h¸µᜧᑮL5¶>D?¨{h12.¹gº»2Ḅ¼᳛/⌕:º¾ḄᓣZÀᱛZᨵᐵ஺(A)ᓣZ>B?=ᦪ>C?ºÄÀᱛZ>D?ᓣZÀᱛZ

713.º¾ὶ[G¨Æxὶ[஺>A?xὶ[>B?3xὶ[>C?ᐹᨵ■È8Ḅ3xὶ[ᔲᑣxὶ[>D?ᐹᨵÊ┝ឋ°Ḅ3xὶ[ᔲᑣx14.º¾ὶ[ḄȺ¾Àgº¾ὶ[Ḅ/⌕ÍÎGȺ¾ὶ[Ḅº¾Ïᑖ3ÑÒvIḄyᵨ஺>A?ÓÔ>B?vI>C?Õᑗ>D?Ö15.×ὶ[1ÒØᔣ᜜Y2᝞Ûᵨº¾ὶ[ᑣº᪝x°ᜫᦔḄßàÓá஺>A?Õᑗ:ᢴXẚã>B?Óá>C?Óváä16.åឋAæὶlᘤᵨèé᪥ᑴëº᪝ὶ[º᪝JḄᙊìFD=200mmlt⌴vwT=180N.m,ᑣyᵨᙠîïº᪝OḄY450஺>A?1800>B?240>0450>D?54017.Zðt0Àðt0zñòᐸ/⌕ô6Gt0ᦔ᳛¸஺A?ᙠt⌴zõ¼᳛2òRB?t0ᦔ᳛¸0ðḄö÷D?ðḄøùú18.᪗üZðýḄ⌱rþÿ
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:Ḅe:./0Di=180mm,kn,=940r/min,p:./0D=710,k2n2=233r/min,ᑣQ:_ᦪes2.2%___஺(A)1.2%(B)1.5%(C)1.8%(D)2.2%24.ᙠᐹxyz&'
:?(a|}%./0D“D,b|⌱ᵨḄ"#(c|2}%ḄL,d|}%Ḅ᪷ᦪZ,e|⌱%;<=জ(f|z▭;<=a,g|zᵨᙠḄFoᔜ⚗Ḅsb-a-e-c-f-d-g஺(A)a-b-c-e-f-d-g(B)a-b-d-e-c-f-g(C)b-a-e-c-f-d-g(D)b-a-e-f-c-d-g25.$Z.⌕}ᔠ(¡¢Ḅ£ᦪ¤¥¦X,(A)/0(B)§(C)£ᦪ(D)ᦪ26.$©.Ḅᙊᨵ⚔ᙊ(ᑖᙊ(ᙊ®᪷ᙊ஺(A)⚔ᙊ®᪷ᙊ((B)⚔ᙊ(ᑖᙊ(ᙊ®᪷ᙊ(C)⚔ᙊ(ᑖᙊ(ᙊ(⁚ᙊ(᪷ᙊ27.$᪗±/±ᙊ².Ḅᕜ⁚(=)P=15.7mm,⚔ᙊḄ/0sd=400mm,ᑣ´.Ḅᦪs78஺(A)82(B)78(C)80(D)76µஹz·¸¹1.z¹º»᪀Ḅ½ᵫ(¾ᑨ%ᐸRᔲᐹᨵ}%Á:((¸ᨵÂᜮḄ᪀sÄ:)஺

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:A-஺2z-zi=z-z.z=z-z+z2,=48-20+20=48232321(n-n)/(n-n)=zz/H3H23n=03

10i=l-48*48/20*20=-4.761H4.¹º._,ÉÊZi=18ஹZ=20>Zr=25ஹZ=25.Z=2(×),Øa233Ùk100ᙌ?(bk4.5ᙌ,ÒZM?il6=(20*25*z„)/(18*25*2)=100/4.5z=404

11Ñ⚪&$.ßà1.»ᘤᡈ»᪀᪀ã\,ᐹᨵ}%Ḅ¦ZÁ:஺2.ᙠHä᤯ᩚ»᪀;(᝞æçᨬéᩚs»ê,ᑣ!»ê¦ëḄìᩚíî᦮ᕜðkÁ:,ᓽòᑮôHä»᪀஺3.Hä᤯ᩚ»᪀MN“õö”øùḄᩩR(᤯ᩚse:,Häsp:஺4.ú.»᪀ûüp:ᩚᢥ᯿ú..ÿ
,ᔜᩖḄ஺5.ᙊ├᜜ᔠ᪀ᨵ6ᩩ⌕!ᙌ#$%&ᙌ஺6.'()⊤☢,ᓺᨵB2240,2⊤34'()5B,6789:;<=89>2240mm஺7.Aᦪ5CḄD⌕Eᦪ,5CᔜFᑖHIJKLMḄNOLCQḄᜧSTU9V2ᡂXY஺8.᪗7᜜ᔠ\C]ḄX^ᔠᩩ_5`!CḄa☢AᦪTbcdefgCḄ(fghcᔣfj஺9.lm∍ᩚᜮᦪVbcᓣ(ḄrY,<>∍ᩚᱯឋuᦪvᑗ஺10.ᙠz{|}~T!{ᵨḄ஺.ᑨ1,5ὶὶ5஺:┯=2,#Ḅ᩽ᜳ(஺ᜧ᪀Ḅញᱯឋ℉஺:=3,ᙠ▭|᪀Ḅ“¡”£z{e5¤ᑭḄᜐᜐe⌕ὃ⇋©ª஺:┯=4,ᑖ9ᙊ,«¬(ḄᓄC¯ḄQ°ᨵ±²஺:=5,³Y;´i"=m/n2=Zz/Zi¤¼C]½5∍ᩚ]eᡂ¾஺:┯='.¿À

121.ÁÂ᪗7Cë¬(20°Aᦪ>᪗7Åᑖ9ᙊCÆgÇCÈḄC2.>ÁÂ⌕▲ᑴCḄᨬÌCᦪÃᡂaÎzCCᦪÏÇ17Ð᪷ᑗ3.!fÒÓÔḄÕÖ×ØᵨÁÂÙÚḄC]ÛÜÝᐸß¡஺àCᙊáCT\CᙊáC(]Óãஹåᜧ)5.çèéêញᱯឋᙠ|ᨵÁÂëìÃèíᜮᑬïðñ³9òóô᳛ö.LM1.ᨵv᪗7àCᙊáCm=2mm,a=20°,Z=25,Z,=50,ø(1)᝞úni=960r/min,n=?(2)|ýþa=?(3)Cþp=?2n=480a=75p=6.2822.Z15,Z=25,Z=20,Z60஺n,=200r/min(┐)n=50r/min(234┐)HḄ#$஺(200-n)/(50-n„)=-25*60/15*20n=75HH

133.()*+᪀Ḅ-ᵫ/஺:3*5-2*7=14.123ᵫ45720636768F=5200N,F=3800N,Fx=2200N,=ᔣ᝞rlr2@ᡠB8C36ḄDEFG₹஺S=Fr./2Y=5200/2*0.4ctgl4°=16201S=Fr/2Y=3800/2*0.4ctgl4°=118422Si+Fx>Sz1620+22001184Fa=S=118422FakS,+Fx=3820Fa,/Fr=3800/5200=0.73>e=0.37l

14Fa/Fr=1184/3800=0.31e.F=O.4Fr+O.4ctgaFa)214ஹWX1.+᪀ᐹᨵ[\]FḄᩩ_`aF_ᦪcd+᪀Ḅ-ᵫ/ᦪ2.@B+᪀⌕ᨵ[\]F◤⌕ᨵ1gaF_஺3.h☢jᩚ+᪀l8mᔜᩚo/ᑖqra=30,b=50,c=80,d=90,Dvar+w8ᑣyjᩚ+᪀rz{|+᪀o

154.{|᤯ᩚ+᪀l8{|rF_8ᙠ஺A{|ᩚᐳ8B᤯ᩚᩚᐳ8Cᙠ85.2+᪀ᙊ—+᪀Fឋ஺6.ὶḄ⌕ᵨ⌶`ᕜᔣ¤\“12X50”Ḅ¨©`⌴]F«#¬o7.®hὶᡠ⌴Ḅᨬᜧ#¬rT,²⌕⌴Ḅ#¬rL5T,ᑣ´_______¶·45h_____________OA¹oºᜧᑮ1.5¼,B¹½ºᜧᑮ1.5¼C¹¾ºᜧᑮ1.5¼D¶·45h8.ÀÁḄÂÃÄ`ᢣÆḄ᜜8ÀÁ“M12X1.5É”Ḅ¨©`ÉÊËᱛÀÁÂÃÄ12_______________o9.®À᪝ὶlḄÎÀÁὶÏÀÁὶÐÑḄ⌕Òq`ÎÀÁὶlḄÀÁÓᑖᙠÔ#Õᵨ஺AÖ×BÔ#CØᑗDÚ{10.4Û᦮ÀÊ8ÝᵨzÞᱛÀÁ8Àßr3àá8râÀãä5Àᩚå3æF2àá8ᑣÀᩚ´#1/3ᙌ,11.è᪗ê\8ëìᨵYZABCDEᐳîïðñ8òó“B2240”⊤BḄ¨©`õo/2240mm஺12.ìF⌕`ö☠ì«C2ø☢ÐÑḄ᥅úᩭ⌴F«F8Aì«C2ø☢ÐÑḄüBìḄÏýÖBì«C2ø☢ÐÑḄ᥅úDìÎýÖ13.ëìþÿ☢
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367.5mm,ᑣ`8Ḅ8ᦪ
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_________xt_________________y______________z{t____________|}஺ஹ⌕1.ᑡ᪀RLM஺2.R⚔(%%ᩚ:᪀

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196.w20X70GB1095—79Ḅ{|—A~Nwb=20mm,L=70mm஺7.C2800Ḅ{|C~{00-8.ᜮᑬḄA;᪀ᵨḄj;᪀;᪀஺9.ᵫnjḄSᙊḄ¡SEᡠ£ᓽjḄ¤¥<¦§ᶍᨵ©ªE«¬®jḄS஺10.ᑖᙊ°Ḅ±²20°,᥎ᦪ¶Ḅ᪗¸¹¹,º»¼3Ḅ½EB᪗¸ᨔ஺¿ஹᑨÁ1.;᪀ÂÃḄ஺42.ÄÅÆᔠᘤὶ(ḄÉÃᙠA<ÊDᑖÆ஺43.ᙠN☢Iᩚ;᪀

203.ᑖᙊ°±²ḄùᓄE4mḄ1ûᨵç®èᨵ®4.ᙠìíîïðij;᪀ḄhᩚãüᑮḄþÿ?ᔣஹᓄ5.᪵ᙊḄᙊᕜஹᔣFt=2T/dFr,=Ft.tg20°l1I).1.*ᵫ2.,-./ᨵ12345஺᪗8ᙊ9(;<)>ᜧ9@AB>C9ḄᦪzzF24,⚔ᙊd“=78mm,/MNa=135mm,Qᜧ9ḄR⌕TUVWXY29ḄZ஺[\78=m(24+2)m=3a=m/2(z,+z)135=3/2(24+z)22z=66(1^=3*66+2*3=2042M=3*66-2*1.25*3=190.5i=66/24=2.75

213.ᙠef9g/>@hZ1ஹZ2ஹZ2'Z3ஹZdஹZkZ5ஹZ5,ஹzomZil6஺6was4ᙠef9g/>ᔜ9ᙳp᪗89>@hZi=20,Z=48,Z=20oQ22mZ3XZim.z-Zi=z-Z2.Z3=z-Zi+z'=48-20+20=482322(n,-nn)/(n\rn“)=zz/z&23n=03i3=1-48*48/20*20-4.76

225.1tᵫ127211ACḄtwxw,F“=3300N,F=1000N,F=900N,᝞e஺r2sQm|twḄ}~₹P஺(S=0.68Fre=0.68X=0.41,Y=0.87)12᜛FxS=0.68FrSFO.68Fr,=0.68*3300N=2244NS=0.68Fr=0.68*1000N=680N22S,+Fx=680+900=1580N

231ஹ1.ef᪀/ᨵ_1__஺(A)0(B)1(C)2(D)32.ef᪀⌕ᨵ>◤⌕ᨵ—஺(A)0(B)l(C)2(D)3

243.☢)ᩚ᪀/>ᔜᩚᑖ¢pa=40ஹb=60ஹc=60ஹd=70஺}¥ap¦>ᑣ¨)ᩚ᪀p©ª«᪀஺4.ᙠ©ª«᪀/>@h¬ᩚpa=80,b=150,c=120,ᑣdᩚp110WdW190஺®A¯d<110®B¯110Wd<190®c¯d<1905.°9᪀±ᩚḄ²³>´ᵫ°9°9µ5ᡠ·Ḅ஺®A¯¸¹®B¯9µª5®C¯º»6.°9᪀/>¼ᙊ½´ᢣ°9¸/M¿À▭9µ5ÂḄᨬCᔣ஺®A¯ᳮÅ9µ5ÂḄᨬᜧ®B¯À▭9µ5ÂḄᨬᜧ®0ᳮÅ9µ5ÂḄᨬC®D¯À▭9µ5ÂḄᨬC7.ÆὶÈḄR⌕ᵨ⌶´Ë9Ì9ÍÎÏÐᕜᔣÑÒ⌴ÔN®A¯ÐtᔣÑÒ⌴tᔣ®B¯ÐtᔣÕÖ×2ØÒᐹᵫÚᔣឋ®C¯ÐᕜᔣÑÒ⌴ÔN®D¯Ü-Ýᔂßà8.AஹBஹC¬áâãḄäåÆbஹhஹh×ç>ᑣèÖ/éᢴë☢ìᨬᜧḄíîBã஺

259.ÆὶÈᡠï⌴ḄᨬᜧÔNpT,ð⌕⌴ḄÔNp1.5T,ᑣí—-12Æ஺®A¯ñÆòᜧᑮ1.5ô®B¯ñÆõòöᑮ1.5ô®0ñÆòöᑮ1.5ô®D¯Ü-1•2Æ10.øùúûḄᦔ᳛>R⌕ÌúûḄÚþÿᱛᨵᐵABᦪCᱛDᱛ11.ᵨὶὶ!"ᜧ$ᩞᧇ"'ᙠ◤⌕+,-.Ḅ0123ᵨ4ᜮ6ὶ஺A᪝ὶB4ᜮ6ὶC┑ὶ12.;<᪝ὶ=Ḅ>?@AḄB⌕CDEF>ὶ=ḄGᑖIJᙠKLMᵨ஺AKLBNOCPᑗDRS13.ὶUVᔣ᜜YMᵨ᝞ᵨ;<᪝ὶᑣ᪝\]Ḅᜫᦔ`abKc஺APᑗdᑺfẚhBKcCKNci14.klmnoplmnqr"஺ᐸB⌕tuEmnᦔ᳛wAᙠm⌴qyz᳛{|"}Bmnᦔ᳛w0lḄDlḄ315.᪗FklᨵYZABCDEm⌴]YᨬᜧḄb—I஺ᨬ}Ḅbe஺A1000⊤A᪗!1000mmo16.lḄmn=Ḅᨵᦔᙊᕜd¡ᐵ஺A¢Ḅ£¤¥£¤B¢Ḅ£¤¥¦§Cd¡ᐵ17.lmnḄ=©d}lªḄ«¬£ᜧmnr஺ᑣ}lªᒹ¦}஺A£ᜧB¦}CI¯

2618.±²2Gᵫ´nµஹ¯·ᘤஹ<¹ºᔣὶ»ᘤln¼ª½·ᘤḄ»Emn»஺A©»BO»Cmn»19.¿ÀÁÂ`ÃÄÅÆÇᙊ«¬ᜧ}஺20.ÈÁªÉḄᙊᨵÁ⚔ᙊÁ᪷ᙊᑖ!ᙊÇᙊ஺AÁ⚔ᙊÁ᪷ᙊBÁ⚔ᙊÁ᪷ᙊᑖ!ᙊÇᙊCÁ⚔ᙊ⁚ᙊÇᙊ஺Á᪷ᙊDÁ⚔ᙊᑖ!ᙊ⁚ᙊÁ᪷ᙊÇᙊ21.¿À᪗«Áᙊ6ÁªmnᐸÍÎÏᔠᩩbÒᦪfYqÓ஺22.Ô»ᙠÕAÖ┯90஺Ḅmn᝞ØÙm⌴₹ÛmnrÜ"ᜧᑣ3⌱ᵨ∍ª∍ᩚmn஺AàÁªmnBáÁᙊ┵ÁªmnC∍ª∍ᩚmn23.ãÔ»ä"å$⌕æmnrÎ3ᵨªçmn஺AlmnBèÁªmnCªçmn24.¿À᪗«Áᙊ6Áªé6ÈÁdé7ÈÁᡠëḄìí!ᑖDb42.14mmyd49.52mm,ᑣðÁªÒᦪb—^5஺25.ñaòÁ☢ÁªmnḄô!õö✌ᐜᢥÁ᪷RSúûô!ô!ᩩöüýÒᦪ஺þᑨ1.┯᪷ᙠḄᩩᑨᩚ᪀ᙠᑣ᪀ᡂ!"᤯ᩚ᪀Ḅ஺2.┯&'()ὶ+☠)Ḅ-./☢Ḅ᥅23ᩭ5⌴78Ḅ஺3.┯:;<=>ᐹᨵAḄB┝ឋE஺=>FGḄ᥅23HIJ☢FGḄ᥅23KELM=NḄOῃ஺ᡠRSᙠTUHVWX₹Zᵨ.\◤⌕■O஺4.┯m,d,h/c*K᪗ijḄkl᪗ikl஺

275.mnop᪗iqkᙊskl5Uᵫuvwixyz{|8}~ᐸ5UḄᜧᢝW஺:.⚪1..ᑡl᪀_L__ᡠḄ3;xḄ஺2.!⚔m|UUᩚl᪀(1)3;(2)lᙊ(3)Uᩚᓣh3.¡¢᪀ḄBᵫ£¤ᑨᐸᔲᐹᨵxḄ¦U஺

282ᐹᨵxḄ¦U4.=>ὶḄB┝ᩩ§¨©ᙠ=>ª;᥅2«ᦪ®¯°.,±:;<ஹ³<ஹ´<=>ḄB┝ឋµᦔ᳛஺ᓣ;u¸u¹º᥅2;:;=>B┝ᨬA³<¼F´<ᨬ~஺ᦔ᳛´ᨬ~஺5.½Ḅ¾᪀¿¡À⌕ὃ⇋ḄÃÄᨵÅÆ©½-ÇḄ½ᔣஹᕜᔣÊwËÌÍÍÎ.¡¢⚪஺1.ÏmxvwḄ᪗inopÐklḄa=20°,m=4mni,5U=3,|ÒÓa=144mm஺±Ô/klḄkᦪஹᑖ£ᙊஹk⚔ᙊஹk᪷ᙊ஺Ö1.144=4/2(Zi+iZ.)

29ZØ18Z=3*18=542dØ4*18=72d=4*54=2162d=72+2*4=80r”y(72+2*4)/2=40d=216+2*4=224r=(216+2*4)/2=112ala2a2d=72-2*l,25*4=62r=(72-2*1,25*4)/2=31flfld=216-2*1,25*4=206r=(216-2*1,25*4)/2=103f2f22.l«ÏZi=20ஹZè=24ஹZ2=30ஹZ2=Z3=Z4=25>Z5=74,íÏ%1=100ë/ᑖ஺ÔᓽÖ(n-n)/(ns-nn^^ZiZs/ZzZrn=0n/niii=l+ZiZ5/ZZrnm=100Ô2N1522n2=305.6

30(ri2—nn2)/(n,i—fin2)=—ZI/ZJ1rij/nn2=1+Zj/Z2,305.6/n(i2=1+25/25n,i=152.82144=4/2(Z.+iZ.)Zi=18Z=3*18=542dy4*18=72d2=4*54=216d=72+2*4=80r=(72+2*4)/2=40d=216+2*4=224alala2r=(216+2*4)/2=112a2d,,=72-2*1,25*4=62r=(72-2*1,25*4)/2=31rid=216-2*1,25*4=206^=(216-2*1,25*4)/2=103f2ஹõö1.ᘤᡈ᪀ᔜúᑖFGûᐹᨵx¦U¦U஺ᘤÍZHýKEþᡂᨵᵨḄÿᡈᣚ஺2.᪷Ḅᑨᔜᩚ᪀Ḅ஺

31!"᤯ᩚ᪀$!"᪀!"᤯ᩚ᪀$᤯ᩚ᪀3.&'(Ḅᳮ*(+!,Ḅᨬ./0ᡠ2Ḅᙊ45'(Ḅ6ᙊ஺4.8ᵨḄ:;<=᪀ᨵ?(@A(᪀஺5.ᙠDE᪗GHIJKLMḄᱛO5600R,T4U0ᢣḄWLMḄ᜜0஺6.ᡃDZO[\]᪗Gᓄᐳᑖ5—YZABCDEijk,ZO[Ḅ┼OW______400nRo7.[q=rstavᜧ8xyz[Ḅᢘ=|stav.}x~[Ḅὁᓄ(ᜫᦔ)஺8.ᵫ,Ḅᡂ6ᙊḄḄOᜧᡃDHI᪗GO5200஺9.ᙊ(ḄᩩW☢ᦪ@O¡L¢Oᜧ.¡£ᔣ¥஺10.DE᪗GJK§¨Ḅ©⌕6Xhᢥ®0⌱°஺11.±²³ᨵᙊ(Ḅq=®ᨬ´⌱ᵨOµ¶3ஹ7(6)¸=®¹º¹»®¼±²³Uᙊ(Ḅq=®ᨬ´⌱ᵨᔣs6ஹN¸=®¹º¹»®஺12.®¾²³¿ᨵÀIḄÁÂᡠ&⌕®¾Ḅ¿ÃÄᕜᔣÆI@®ᔣÆI஺

32Çஹᑨ1.ᘤWᵫ᪀Ìᔠ|ᡂḄ᪀ḄÌᔠnIÎWᘤ஺È┯Ê2.!"Ïᙽ᪀Ïᙽ5©=ÑᨵÒÁÂ஺ÈÊ3.<=ÓWὶµὶµÕW<=Ó஺È┯Ê4.᤮=×ᩚ᪀ᨵញÙᱯឋ஺ÈÊ5.m,d,h.*c*àW᪗GáḄ(W᪗G(஺È┯ÊZஹâãäå1.âãæ᪀ḄçᵫR஺12.èânᩚ᪀஺\᤯ᩚCDḄéR575mm,ÄêëìᦪK=l.5,ðéR5100mm,᤯ᩚḄnñ᩽▲ÁÂôðḄᜳO545%3.èânsU=¸÷ø=ù'(஺\'(6ᙊ/0r=40mm,¸÷/0br=10mm,'(üÑ┐Ùø=&¡<=Hþ¾ᓣᓣ32mm,120஺60°,ᒕ!"#$஺4.'()*ᔜ,Ḅ,ᦪᑖ01=20ஹZ=18.Z=56O6789஺23

33(nl-nH)/(n3-nH)=-Z3/Zln3=0ilH=l+Z3/Zl=l+56/20=3.8DEF1.G᪀ᐹᨵKLMḄᩩOFPᦪ!QRᵫᦪ2.ᙠUḄVWXY*UḄZ[Oᢥ]^ᩭVWKLḄ஺3.`a᤯ᩚG᪀*`adeᙠfghi஺jAl`amnᩚᐳpjBl᤯ᩚmnᩚᐳpjCleᙠ4.G᪀sᙊu[vᜧxyv9G᪀7ឋ{v|஺5.G᪀*ḄxyOᢣ~gḄpmgḄp"ᔣḄᜳ஺jAl~gḄpmgḄp"ᔣ஺jBl~ḄgḄpmḄMᔣ஺

34jCl~ḄgḄᑗpmḄMᔣ஺6.B18*50ḄOB50mm஺7.Ḅ_A,B,Co8.XὶḄ⚗ᑁOFAFᢥ⌱¢BFᢥ⌕6⌱¢Ḅ¤CFᢥUḄZ[⌱¢Ḅᒈ☢§¨,DFὶª«¬⌕Ḅ^᪥᪶஺ᙠᐹ¯X°±²³OBCAD09.µ¶Ḅ·¸Z[Oᢣ¹Ḅ᜜[஺M16*2ḄO_________________¼ᱛµ¶᜜[16µ¾2஺10.ᵨQↈÁÂὶḄµ¶ÃÄᵨ¼ᱛµ¶஺jAlŵ¶jBl¼ᱛµ¶jClÆᱛµ¶11.ÇÈ᦮µÊÄᵨËpÆᱛµ¶µ¾3mm,̵ÍεᩚÏUᔣÐ12mmµᩚÑ_ᙌ஺jAl3jBl2jCl4jDl2.512.Ó᪗ÕLÖᨵYZABCDEÙ¤ÚÛB2280⊤Ý.B2280mm஺13.Ö7d⌕Þ☠Öàáâ☢âḄ᥅äyᩭ7⌴MàyḄ஺jAlÖàá☢âḄæxyjBlÖḄçèéyjClÖàáâ☢âḄ᥅äyjDlÖḄêèy14.ëìᩩmÛ°LḄÖᐸîïð9ÖZ[Ḅñᜧòñᜧ஺jAlñᜧjBló9jClôõö15.Ö÷ø☢!ῪÅᜳ40ᑣXÖ;üᜳ<40஺jAl40jBl>40jCl<4016.Ö7ḄdZ[4=180mm,"n=940rpm,1d=710mm,n=233rpm,ᑣឋᦪ£0.02222017.!"ᔜ᪷%&ᙳᒴ)Ḅ᪷ᦪ+,-./L᪷஺(A)4(B)6(C)2(D)10

3518.;<=>?@ABCDEᙊᜧH஺19.;<=᪗K>ᙊL>MNOᔠᩩRSTᦪUVW1o20.>!Ḅ᪗KXY᧕ᢣ⁚ᙊᑖ^ᙊ_ᔠ஺21.>!Ḅ_ᔠ^`ᜧ)⊤bcdefOᔠḄ>ᦪghi,>!`jk஺22.l@mfn>)᪷opfn>ḄZm⌱sᑐu஺23.vwx“6312”Ḅ{|}~ᳫwxᑡ3ᑁ60____o24.vwxḄ&₹}ᢣL=l106dx%Ḅ&₹஺25.ᙠMᩩR)vwxḄ⌕ᜫᦔ@}vv⍝Ḅn⊤☢⇨஺avbvv⍝Ḅn⊤☢⇨஺c£ᢝ¥ẚ§஺dv⍝¨©஺ªᑨ¬M10ᑖ1.®¯᪀±)®ᨬᜧUV³´D®?ᚁ^¶▽Ḅᙢ¹஺º2.»¼j½ὶ¿}À☠½ḄÂÃj☢ÄḄ᥅ÆVᩭ!⌴ÉÊḄ஺┯3.!±ឋ´Ì}+ÍÎÏḄ஺º4.m,a,Ra*,c*Ò}᪗KḄ>}᪗K>஺┯5.n±ḄwÓw஺┯Ô⌕ÕÖS4X5ᑖ1.Øᑴᑡ¯᪀ÚbÛÜḄUV஺

362.ᙠÝÞᓣ)᥅ÆᦪWcḄàá)âã¶@)ä@)Ê@ÝåḄæ┝ឋèᦔ᳛Ôêᳮᵫ஺SᵫDᱛîÝåæ┝ᨬï)ä@ðñ)Ê@ᨬò஺ᦔ᳛Ê@æ┝ᨬï)ä@ðñ)Ýåᨬò஺3.óô⌕▲ᑴ᪗K>Ḅᨬö>ᦪ÷Sᡂmfn>>ᦪöD17ú᪷ᑗ4.ᙠ⌱sᜧH>ᩞᧇþÿᜐᳮὃ⇋⚪ᩞᧇᜧᜧ50!"#ᦪ%᪷ↈ()*⚪+20ᑖ.+7ᑖ.1.)*234᪀Ḅ7ᵫ9ᑨ;ᐸ=ᔲᐹᨵA;ḄBC஺2ᐹᨵA;ḄBC+13ᑖ.2.23GHI4=30,Zz=20,Zj=30,ஹZs=74,RHInFlOOW/ᑖ஺YZnno

37n3=0(nnJ/(-nH)=-Z2Z3/ZZni/nn=2.64n«=37.88ஹ⌱]⚪1.ᙠ_`aᙽ4᪀cdeaᙽfCgᨵhijkl஺AᨵBmᨵCᨵhDᨵn2.o┦q(ᩚ4᪀dstᩚuvwḄᩩgyeᨬ{ᩚ4|,}~ᑮ_`4᪀஺AᨬuᩚBᨬ{ᩚḄ᪀gCᨬ{ᩚDᨬ{ᩚḄ᪀g

383.ᙊᨵhᙊ⚔ᙊஹ᪷ᙊwhᙊᑖᙊஹᙊ஺Aᑖᙊஹ⚔ᙊᙊஹ᪷ᙊB⚔ᙊஹᙊᑖᙊஹ᪷ᙊCᑖᙊஹᙊ⚔ᙊஹ᪷ᙊD⚔ᙊஹ᪷ᙊᑖᙊஹᙊ4.ᙊḄoAᜧoBoCoDo20஺5.ᵨᩩᑐᐹᡂ¡ᙊdZG7}£¤᪷ᑗ¦§஺AZ=17BZ<17CZ>17DZ=146.᪗¬®ὶ°Ḅ±"²³´eµo¶Ḅᢴ¸஺A¶Ḅᢴ¸B®Ḅ¹ᑗ¸C®Ḅº_¸D®»⊤☢Ḅᢴ¸7.o☢HBW350ḄÀÁÂCÃ)Äᐜᢥ°Ç¸ᩩg)*஺Aᐜᢥ°Ç¸ᩩg)*

39Bᐜᢥº_¸ᩩg)*CᐜᢥÈÉᩩg)*DᐜᢥÊᔠᩩg)*8.ÌÍÎᙊ∍ᩚḄÐ☢Ñᦪ,Òᔠ᪗¬ᦪÓ஺AÔ☢B☢CÐ☢DÕ9._`᤯ᩚ4᪀c_`×CgᑣÂC=Ùᩚ᤯ᩚvÚᡠᜳ┦_0A᤯ᩚh᩽▲klvÚḄᜳBÙᩚ᤯ᩚvÚᡠᜳ┦CÙᩚ_`vÚᡠᜳ┦D᤯ᩚ4|vÚᡠᜳ┦10.³´àáâãäåæçCgè4᪀BCᜫêḄᔠᳮëì=íåæîï஺AðᜧåæîïBíåæîïCðᜧᙊîïDíᙊîï

40ñஹ)*⚪2.HI᜜óᔠ᪗¬¡ᙊÂCḄ᪗¬côõa=150mm,ÂCøig=4,ᦪû=20஺YA;üḄÑᦪmwᜧḄᦪZ2ஹᑖᙊ¡ïdzஹ⚔ᙊ¡ïþஹ᪷ᙊ¡ïþ஺Z=iZ,=4*20=802m=2a/(zl+z2)=2*150/120=2.5da2=mZ=2002da2=200+2*2.5=205df2=200-2*l.25*2.5=193.53.∍ᩚ1ᜮ!"∍ᩚ1=2,$ᔣ᝞ᡠ஺∍Ḅ*ᦪZz=50,∍ᩚ2ᓫᜮ-"∍ᩚZ2.=l,∍3Ḅ*ᦪZ3=40,ᐸ1ᔜ*ᦪZ3.=30,7(=20,Z#=26,Z=18,Z-=46,Z=16,Z?=22஺7i%஺556

41:ii7=Z2ZZ.,ZZZ7/ZZ2-Z:rZ.fZ.Z=50*40*20*18*22/2*1*30*26*46=220.7:i56156=ஹ?@ABCDE⚔GHIHJKLMN᪀஺PQIHJḄRHST.UV᝞ᡠ.MḄWᙊஹY$Zᔣ[IHJḄ\]^D᝞ᡠ.ᙠḄWᙊᙊᕜaPbcdᓝfghᑖj஺klmn?opqr?ᦻtlm.uvwxᶇ?V஺

42zஹ{|⚪1.~HᙠB$Ḅ⌕ᜫᦔL:j⇨2.ᵨḄᨵᔜᵨᔠ:=ᵨὶ.Lஹ*ஹ¡Lᵨ¢H3.Bᩭl.¤¢HḄᡭ¦§¨©ᙠᜧ¤a«¬¤a?:¬¤a4.@A▤:ὃ⇋a±Jᔣ²^ஹ³´5.ᙠµ¶~HḄ·ᔠ@A¸¹ὃ⇋º⚪:ᔣஹᕜᔣ²^.³´.»¦¼½h

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