漸開(kāi)線(xiàn)花鍵強(qiáng)度校核(完整計(jì)算)

漸開(kāi)線(xiàn)花鍵承載能力計(jì)算,,,,,,齒面磨損許用壓應(yīng)力σH1、σH2值(摘自GB/T17855-1999),,,,,,,

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一、花鍵副基本參數(shù),,,,,,σH1值,,,,,σH2值,,

齒數(shù),z,/,35,,,未經(jīng)熱處理20HRC,調(diào)質(zhì)處理28HRC,淬火,,,滲碳滲氮淬火20HRC,未經(jīng)熱處理,0.028×布氏硬度值

模數(shù),m,/,1,,,,,40HRC,45HRC,50HRC,,調(diào)質(zhì)處理,0.032×布氏硬度值

壓力角,a,o,30,,,,,,,,,淬火,0.3×洛氏硬度值

花鍵結(jié)合長(zhǎng)度,l,mm,26,,,95,110,135,170,185,205,滲碳滲氮淬火,0.4×洛氏硬度值

外花鍵大徑,Dee,mm,35.67,,,,,,,,,,

外花鍵小徑,Die,mm,32.81,,,應(yīng)力轉(zhuǎn)換系數(shù)K值,,,,,,,

內(nèi)花鍵小徑,Dii,mm,34.25,,,較少齒漸開(kāi)線(xiàn)花鍵,,0.3,,,,,

齒根圓角半徑,ρ,mm,0.5,,,較多齒漸開(kāi)線(xiàn)花鍵,,0.15,,,,,

漸開(kāi)線(xiàn)起始圓直徑,DFe,mm,33.74,,,,,,,,,,

工作齒高,hw,mm,0.71,,,軸向偏載系數(shù)K4,,,,,,,

全齒高,h,mm,1.43,,,,,,,,,,

弦齒厚,SFn,mm,3.682,,,系列或模數(shù)/mm,,平均圓直徑dm,,l/dm,,0.742857143,

二、工況參數(shù),,,,,,,,,,≤1.0,>1.0-1.5,>1.5-2.0,

輸入轉(zhuǎn)矩,T,N.m,1200,,,輕系列或m≤2,,≤30,,1.1-1.3,1.2-1.6,1.3-1.7,

材料抗拉強(qiáng)度,σb,Mpa,980,,,,,>30-50,,1.2-1.5,1.4-2.0,1.5-2.3,

材料屈服強(qiáng)度,σs,Mpa,835,,,,,>50-80,,1.3-1.7,1.6-2.4,1.7-2.9,

齒面接觸強(qiáng)度安全系數(shù),SH,/,1.25,,,,,>80-120,,1.4-1.9,1.8-2.8,1.9-3.5,

齒根彎曲強(qiáng)度安全系數(shù),SF,/,1,,,,,>120,,1.5-2.1,2.0-3.2,2.1-4.1,

使用系數(shù),K1,/,1.25,,,中系列或2<m≤5,,≤30,,1.2-1.6,1.3-2.1,1.4-2.4,

齒側(cè)間隙系數(shù),K2,/,1.1,,,,,>30-50,,1.3-1.8,1.5-2.5,1.6-3.0,

分配系數(shù),K3,/,1.1,,,,,>50-80,,1.4-2.0,1.7-2.9,1.8-3.6,

軸向偏載系數(shù),K4,/,1.5,,,,,>80-120,,1.5-2.2,1.9-3.3,2.0-4.2,

應(yīng)力轉(zhuǎn)換系數(shù),K,/,0.15,,,,,>120,,1.6-2.4,2.1-3.6,2.2-4.8,

齒面磨損許用壓應(yīng)力,σH1,Mpa,110,,,5<m≤10,,≤30,,1.3-2.0,1.4-2.8,1.5-3.4,

齒面磨損許用壓應(yīng)力,σH2,Mpa,9.4,,,,,>30-50,,1.4-2.2,1.6-3.2,1.7-4.0,

彎矩,Mb,N.m,0,,,,,>50-80,,1.5-2.4,1.8-3.6,1.9-4.6,

作用直徑,dh,mm,33.205,,,,,>80-120,,1.6-2.6,2.0-3.9,2.1-5.2,

應(yīng)力集中系數(shù),αtn,/,2.131,,,,,>120,,1.7-2.8,2.2-4.2,2.3-5.6,

名義切向力,Ft,N,68571.43,,,,,,,,,,

單位載荷,W,N/mm,87.010,,,材料力學(xué)性能,,,,,,,

剪切應(yīng)力,τtn,Mpa,166.938,,,,,,,,,,

三、校核結(jié)果,,,,,,牌號(hào),,抗拉強(qiáng)度[σb],,屈服強(qiáng)度[σs],,,

1、齒面許用接觸強(qiáng)度,[σH],Mpa,294.435,,,20CrMnTi,,1080,,835,,,

齒面壓應(yīng)力(計(jì)算值),σH,Mpa,122.550,,,40Cr,,980,,785,,,

,OK,,,,,45,,600,,355,,,

2、齒根許用彎曲強(qiáng)度,[σF],Mpa,431.956,,,,,,,,,,

齒根彎曲應(yīng)力(計(jì)算值),σF,Mpa,47.702,,,,,,,,,,

,OK,,,,,使用系數(shù)K1,,,,,,,

3、齒根許用剪切強(qiáng)度,[τF],Mpa,215.978,,,,,,,,,,

齒根最大剪切應(yīng)力(計(jì)算值),τFmax,Mpa,355.763,,,原動(dòng)機(jī)(輸入端),,工作機(jī)(輸出端),,,,,

,NO,,,,,,,均勻、平衡,,中等沖擊,嚴(yán)重沖擊,,

4、外花鍵扭轉(zhuǎn)與彎曲強(qiáng)度(許用值),[σv],Mpa,368.044,,,均勻、平衡,,1.00,,1.25,1.75或更大,,

當(dāng)量應(yīng)力(計(jì)算值),σv,Mpa,289.146,,,輕微沖擊,,1.25,,1.50,2.00或更大,,

,OK,,,,,中等沖擊,,1.50,,1.75,2.25或更大,,

5、齒面耐磨損能力計(jì)算,,,,,,,,,,,,,

a、花鍵副在108循環(huán)數(shù)以下工作時(shí)耐磨損能力,,,,,,,,,,,,,

齒面摩損許用壓應(yīng)力,[σH1],Mpa,110,,,,,,,,,,

齒面壓應(yīng)力(計(jì)算值),σH,Mpa,122.550,,,,,,,,,,

,NO,,,,,,,,,,,,

b、花鍵副長(zhǎng)期無(wú)磨損時(shí)耐磨損能力,,,,,,,,,,,,,

齒面摩損許用壓應(yīng)力,[σH2],Mpa,9.4,,,,,,,,,,

齒面壓應(yīng)力(計(jì)算值),σH,Mpa,122.550,,,,,,,,,,

,NO,,,,,,,,,,,,

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