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1、漸漸開(kāi)開(kāi)線線花花鍵鍵基基本本參參數(shù)數(shù)計(jì)計(jì)算算項(xiàng)項(xiàng)目目符符號(hào)號(hào)單單位位一、已知小齒輪最大轉(zhuǎn)速nmaxrpm額定轉(zhuǎn)速n1電動(dòng)機(jī)最大扭矩Tmaxnm最高車速Vmaxkm/h滾動(dòng)半徑rmm總最大傳動(dòng)比i總max材料40Cr二、參數(shù)1.模數(shù)m2.齒數(shù)z3.壓力角D4.分度園直徑Dmm5.基圓直徑Dbmm6.齒距pmm7.內(nèi)花鍵大徑基本尺寸Deimm8.內(nèi)花鍵大徑下偏差9.內(nèi)花鍵大徑公差10.內(nèi)花鍵終止圓最小值DFiminmm 齒形裕度CF11.內(nèi)花鍵小徑基本尺寸Dii12.外花鍵大徑基本尺寸Deemm13.外花鍵起始圓最大值DFemaxhS 外花鍵作用齒厚上偏差esvmm14.外花鍵小徑基本尺寸Die1

2、5.基本齒厚S16.工作齒高h(yuǎn)Wmm17.花鍵長(zhǎng)度lmm18.全齒高h(yuǎn)mm19.齒根圓角半徑三、接觸強(qiáng)度A.載荷1.名義切向力FtN2.單位載荷WB.接觸強(qiáng)度1.齒面壓應(yīng)力H2.材料的屈服強(qiáng)度0.23.齒面接觸強(qiáng)度安全系數(shù)SH4.使用系數(shù)K15.齒側(cè)間隙系數(shù)K26.分配系數(shù)K37.軸向側(cè)偏載系數(shù)K48.齒面許用壓應(yīng)力HpC.強(qiáng)度條件四.齒根彎曲強(qiáng)度1.齒根彎曲應(yīng)力F 漸開(kāi)線起始圓上的弦齒厚SFn 漸開(kāi)線起始圓直徑DFe2.抗拉伸強(qiáng)度b3.抗彎強(qiáng)度安全系數(shù)SF3.齒根許用彎曲應(yīng)力Fp4.強(qiáng)度要求五.齒根剪切強(qiáng)度1.齒根最大扭轉(zhuǎn)剪切應(yīng)力TFmaxTtndhKtn2.許用應(yīng)力TFp3.強(qiáng)度條件六.1

3、08循環(huán)數(shù)下工作耐磨損1.齒面壓應(yīng)力H2.齒面許用壓應(yīng)力Hp13.強(qiáng)度條件七.長(zhǎng)期工作無(wú)磨損時(shí)耐磨損1.齒面許用壓應(yīng)力Hp22.強(qiáng)度條件八.外花鍵扭轉(zhuǎn)與抗彎曲強(qiáng)度1.彎矩Mb2.彎矩應(yīng)力Fn3.剪切應(yīng)力Ttn4.當(dāng)量應(yīng)力V5.許用應(yīng)力VP6.強(qiáng)度條件公公式式及及數(shù)數(shù)據(jù)據(jù)來(lái)來(lái)源源結(jié)結(jié)果果備備注注1100040004002803444.5HRC52取值2.25取值13取值3029.2525.3317.06933.330圓齒根給定0從IT12、IT13或IT14中選31.950.22527.40631.526.9561.35查表5-3-62-0.002f級(jí)25.23.5342.047563.150.

4、927350.42743.381m zDDbm zDcosmp)8.1(zmDeiFFiCzmD2)1(minmCF1.0)1(zmDee22max)sintan/5.0sin5.0()5.0(2DDVSDbFeeshDDDm6.0hs)8.1(zmDiemS5.02hm inwiieeDDhFF eCD2Dm axiiDT/2000Ft)co s/(WDtzlF2hieeeDDm4.0漸漸開(kāi)開(kāi)線線花花鍵鍵基基本本參參數(shù)數(shù)21.194查機(jī)械設(shè)計(jì)手冊(cè)3.1-54屈服點(diǎn)S785取1.251.50，淬火取較大值，相反取較小值1.5表5-3-351取1.13.01.1精度大于等不5級(jí)取1.11.21.

5、1表5-3-361.4308.933HHp滿足0.97726.956取DFe=DFemax26.956查機(jī)械設(shè)計(jì)手冊(cè)3.1-54980漸開(kāi)線花鍵取1.001.501.2482.094FFp滿足238.580106.88426.712查5-3-390.32.232241.047滿足21.194查5-3-38185滿足0.3倍洛氏硬度 表5-3-3815.6WhW/H)KKKK/(43212.0HpHS2F/cosh6FnDSW2)cos(arccos360sinFnFeDDFeDDinvinvDSDS)KKKK/(4321FpFbStntnTTF m a x3tn16000hdTTeeieeeieieDDDKDDdh23/1tn04.0238.21.0138.61.094.3117.01hhDhhhdDiehie2/FpFpTF pTTF m a xwHhW/1H pH)co s/(WDtzlF不滿足不能長(zhǎng)期無(wú)磨損或少磨損工作作用在花鍵副上的彎矩00106.884185.128386.167滿足2H pH332000hbFndM316000htndTT223tnFnVTVPV)/(43212.0KKKKSFVP可改公式判斷查表及選擇