細高齒測量方法一、概述細高齒是指采用了大齒頂高系數(shù)（1.3以上）、小壓力角，以獲得高齒輪重合度（2以上），而達到降低噪聲的效果。同時，高重合度使載荷分布更均勻，齒根彎曲疲勞強度得到提高，可以采用更小的模數(shù)（可達到粗齒的0.6~0.7倍）。不采用標準模數(shù)、齒高系數(shù)、壓力角。表1國標中的模數(shù)系列漸產(chǎn)線圓柱齒輪穢數(shù)冷:■1-..'-I』■.■..;1.:-|-珂「二卜：八吃亡7.:.|:|;北“”.2?優(yōu)先選用第一聚到，括號內(nèi)的數(shù)追盡可能■不用國標中的壓力角為20°，齒頂高系數(shù)為1，頂隙系數(shù)為0.25；短齒的齒頂高系數(shù)和頂隙系數(shù)為0.8和0.3。細高齒具有以下優(yōu)點：（1） 高齒輪重合度，有力的降低齒輪的嚙合噪聲。（2） 提高齒輪的齒根疲勞強度，增強齒輪承載能力。齒形角fflSC20g22.5b紗丨汕細齒Rzr21s204細為【】20a18.5°20°20c總變拉系數(shù)壯粗齒亡LIU5也0032+厲0114'41.1735細齒A-0.16+0.393-0.12HK0-16細齒B一也誡-0.S3也in-tK106JiOh單得.粗齒C20.719.2創(chuàng)一!520；428.M283L23ft細齒A2L29+5627.2325r72332.4K33r5細齒B：.!1.川1&J116.820.3622,322,悶齒頂寬Se±ntnwc3.08,?.n^.632,862.952.582.2S3.5細齒A1.兀L021I.]b1価[.42t.740.岡D”54M,42M.TMI.47M.36M.48M.31U細齒81.451.3.1L081.27L221.41.44.43MAt-年代,EATON仝司為了減小FULLER蜜中同軸變速箱直因輪噪音?增強和斜齒變遠輜的市場競爭力.將細高齒應(yīng)用到生產(chǎn)中，降噪效果很好口關(guān)于細髙齒.在我阿世汽車齒輪設(shè)計"一書中第三、㈣兩章中’有所介紹二、法士特變速箱齒輪（細高齒）標準法士特細高齒技術(shù)法士特引進的是美國伊頓公司的福勒變速箱（eatonfuller）,故其所采用的細高齒齒輪技術(shù)應(yīng)為美標英制。美標英制齒輪美標英制齒輪與模數(shù)制不同，采用徑節(jié)制。徑節(jié)制以徑節(jié)為基本參數(shù)（與模數(shù)類似），計算獲得其他齒輪參數(shù)。Dp：diametralpitchDe：circularpitch（齒距）Dp*Dc=n（即3.1416）各參數(shù)是以Dp為基本參數(shù)的。

.77703PGYCLQSDinvqlute,CYCLOID-LintOF./"ACTIO'f3HitCdpTable1>AmericanStandardInvoluteSystem—FullDepth〔疏HIMPITCHrar刊屮.77703PGYCLQSDinvqlute,CYCLOID-LintOF./"ACTIO'f3HitCdpTable1>AmericanStandardInvoluteSystem—FullDepth〔疏HIMPITCH2*0di?mefr?ipfldt.ndlthe■?iiticinmFi-nePit^hG?電B*J?cH?ckcftb*10-DtgrwFulhOeplh怙ek4?TOFINODIAMETRALPITCHKNOWNCIRCULARPITCHKNOWNAddendum 2031S3xCircularpltehDiametralpitchMinimumDedendum 1.15702683XCircularpitchDiametralpitchWorkingDepth 20.6366XCircularpltdiDi&mctralpitchMinimumTotalDepth 2.1570.6866XCircularpitchDiametralpitchBasicToothThicknewon1.57080.5XCircularpitchPitchLine DiametralpitchMinimumCiMranee 0.1570.05XCircularpitchDiametralpitchNote:lUdiuiofFillet?11/3XClearancefor14l/^-dtrr?full-depthtoothand1l/lXdmefor20?d臨i*fulMepthtooth.Note;ThetermDiametralPitchiousedupto1diametralpitchindueircandthetermCircularPitchbusedfor3ineheacircularpitchandover.AeulUbleworkingtoleranceahoaldbeconBlderodineeDBeetionvithdlmisimumrceommeDdatiom?Minimumclearancebetweenthetopofthegeartoothandthebottomofthematingmrsp&ceisepecifiedas-mfnfmura**somtoalkmforneetaurycutterclearanceforallmethoddofproducinggtaro?Table5.NuttallSystemofStubTeethDiim-etralPitchEquivalentGrculorPitchAreThicknessofToothonPitchLin?AddendumWorkingDepthDedendumorDepthofSpaceB?!owPitchLineWholeDepth1/2628323.14161.57083.14161.8S493.45578/44.18882.09441.04722.09441.25662303813.14161.57080.78541.57080.94241.727811/42.51331.25660.62831.25660.75391.382211/22.09441.04720.523G1.04720.62831451913/41.79520.89760.44880.89760.53850.987321S7080.78540.39270.78540.47120.8G392】/4139630.69810.34900.69810.41S80.767821/21^5660.62830.31410.62830.37690.691023/41.14240.57120.28560.57120.S4270.628331.04720.52360^6180.52360.31410.575931/2039760.44880.22440.44880.26920.493640.78540.39270.19630.39270.23550.431860.62830.31410.15700.31420.18340.345460.52360.26180.13090.26180.15710.288070.44880.22440.11220.22440.13460.246880.39270.19G30.09810.19G30.11T70^15890^4910.17450.0872O.174B0.1046aifis10M屈own0.07B50.1571ai727110,2E560.H280.07140.142S€.03610.1f7]120.1309D.OG540.13090.07850.1439130,1208O.OGD40.1208C.072BOJ32914(m440.U33o.nbsi0.11220.M7B0.12341&O+2C940404T0.05230.1MT0.00274U1D016QJ^630.09H20.04910.09320J589DlKgO17a18480.092400115204WZ4O.OS54血鍛茁IB0.17450^08730.043S0.037S0.0523aom3GM陰O.OB270.04L30.0327(MMMA-C9O320ami0.07B50.0S920.07850.0470O+0S62220.34280.07140.03570.07UC.04230D78fiSt0.1509(KG闘00327OJflM(MkSftfi孤0719SE0+1盹0XG040,0302価M山帖皺此MC4S80.11220.05010.02000.0S51wse€.0610300M10.0524O.OSB30咖4CJSU0X^7533D一購凹0.04910.0215O.Q491OOS94C.CS39340-CB240.04G20.023103辭0.0叩&OEOB3G0+CB730.C433Q.OSIB0.013G0.0SGI野.倜70LdtheE犧l如df?tubfreirtttth(ciiiinatedbytMK.D.NutWICo.Lthftwrthdim七uMona4rvbvcd4ii*ctJjupootheclrcuUrpitch”Th?AddendumUm?deCL帖QXth*circuUrpitchrHdlitdedtnducn.0(00xUflcirmlirpitch.徑節(jié)制轉(zhuǎn)化為模數(shù)制:m=p/n=De/n=(n/Dp)/n=1/Dpinch;即模數(shù)m=25.4/DPDP取如上數(shù)值。然后按照模數(shù)制的公式進行計算。EquivalentDiametralPitches.CircularPitches,andMetricModules

CoinnionlyUsedPitchesandModulesinBoldTypeDkuneii;ilPitchCuvuhirPitch,InchesModuleMillimetersDiameinilPitchCircularPildLInchesModuleMillimetersDiametralPitchCircularPilch,InchesModuleMiHime-tci-s匕6.283250.80002.2848咗11.117010.05315/162.52660.50806.1842502.30911.36051110.16000.30922%0.523664&51042七1.256610.1600110.28562.309】0.56445.5658452.5133曙10.1063120.26182.11670.57125垃44.46792.540U1.23681012.5664%2.02130.6283q40.42532%170000.247420.63504.9474402.7925瓏9.W57130.24171.95380.6981業(yè)*38282.82221.11329140.22441S1430.72574.32903531.04728.4667IS0.20941.6933%4.188833.“673.1416180851160」963L58750.7854432.34033.17500.9895816.755201.51000.837R旳30.31903.3510%7.579716.93330.1855IK0.84673.710530350.89767.257]170.18481.49410.S97A322&29773.5004%180.1745141110.9666旳26.27653.62860.86587190.16531.336813.141625.4U003.8666%6.569]200.15711.27001.016030921253.9078O.SCUO6乂220」4281.15451.0472324.255240.78546.3500240.13091.05831.1424班22.23394.18S8務(wù)6.0638250.12571.0160吆2.5133203200423330.7421625.1328%1.0106l.256fi班20.21274.5606%5.558525.4000O」23711.27002.4737204.61820.68035坯260.12080.97691.30632%18.19U50.62835OS0O28O」1220.90711.41112.22.185.0265%5.0532300.10470.8407聽2.094416.9^335.08000.61845320.09820.79371.5708216.17015.5851玉4.5478340.09240.74701.58751.9790165.64430.5566叫360.08730.70561.6755%15.159560.52364.23330.08270.6fifU1.69331.8553156.2X324.0425400.07850.6350嗎1.795214.51436.35000.49474420.074S060481.7952吻14.148970.44883.6286440.07140.57731.81431.731614l.lifOS論3.5372460.06830.55221.933313.13827.25710.43293士480.06540.52921.95381.(507913H039273.1750500062805080■1.570812.70008.3776%3.031950.2656匕0.50532.0Q4412.12768.46670.3711350.80000.06182.11671.484212M0.3491560.05610.45362匕1.396311.2889100.31422.5400600.05240.4233三、細高齒的測繪方法1.根據(jù)已知配對齒輪可測得中心距a,齒數(shù)z1、z2,齒頂圓dal、da2,齒根圓dfl、df2,螺旋角B（斜齒輪）。2.測定公法線，并由基節(jié)推算模數(shù)和壓力角。測量k個及k+1個齒的公法線Wk、Wk+1（對應(yīng)斜齒輪則只能測量法面公法線Wnk），跨齒個數(shù)k由下表所得：齒數(shù)與跨齒數(shù)的對應(yīng)關(guān)系Z12?1819?2728?3637?4546?5455?6364?7273?81K23456789*n*cosa（斜齒輪以法面齒距為準，與此一致），與標準齒距表進行對比，可以查得模數(shù)m與壓力角a（斜齒輪為法面模數(shù)與壓力角，則端面模數(shù)為mt=mn/（cosB） 端面壓力角

tanan=(tanat)/cosB)。表a為國標的基圓齒距表，若應(yīng)用美標英制的數(shù)表查找，則circularpitch(inch)=Pb/(25.4*cosa)。表a基圓齒距Pb=nmcosa的數(shù)值模數(shù)徑節(jié)Pb=n加cosamDpa=22.5。a=20。a=15oa=14.5。125.4002.9022.9523.0533.0411.2520.3203.6823.6903.7933.8171.516.9334.3544.4284.5524.6251.7514.5145.0795.1665.3105.323212.7005.8055.9046.0966.0802.2511.2896.5306.6426.8286.8432.510.1607.2567.3807.5867.6042.759.2367.9828.1188.3458.36338.4678.7078.8569.1049.1253.257.8159.4339.5949.8629.8853.57.25710.15910.33210.62110.6453.756.77310.88411.07111.37911.40646.35011.61011.80812.13812.166

表b英制齒距與模數(shù)EquivalentDLatkietriiJPitches,ClrcukirPLtclits,nndMetricMudules

CunnnoiilyUsedPitchesandModulesinBoldTypeKiamcri^JPitchCiiLVUImrPitch..IncJhftMndnlcA'ljJJLCiLeLefiDirametralPkch.CircularPitclh,IndiesMcduleDsameUa]PUchCltVLdarPatch,1口ches;MudliiteMillrrn^lens6283250.80IW2.2R4R瑰10.0531池2.52660.5080i6JS42和23001].3GO5H10,1600巧0J2364S.5I04眺1MBSlaifiwi110.285&2.XWI0.36445.M58452-3133吃10.1063120,2618-2.1167-取44.46192J4001.230?1012-5664需2.0213-IO.-1253曙]1424y.230412.7UUU0.247^2■J.63JU4.W744U2.7W5必y.O!>57IJ0.24171.953K■).09814站343B2B2.822211：32q14■).224^1.814J0.72574.329U353Ll>4728.4ro7J5■).2W^I.W?3%1.1S8833.S6&73-WM18j'85116■'1曲1.987$(J.7854J32.34QJ2U7■刊D.9S9516.7552■1ftL5L0Q0JS37S蜩30.3IW33510%7.5797J6.9333(J.1855也■i.Xlf.,'3.7105挪碼D.ay7&7.257117U」⑷1.4M13務(wù)20.29773-5SNJ4%7.U74JJ?(J.17451Jill藥26.27653.62K6[LH6陰7n0.1S53I.336S13-1411525MM王H6Mw■i*6.5M1200.1571l.27(X)B.0I603.0MI.2?仇SCMO碣220.[42S1.15^51.0472324,255340.7?54240.1309LOS831424罵22.2339n6.0