軸承設(shè)計(jì)計(jì)算表格,,,,,,,,,

,,,,,,,,,,

序號(hào),計(jì)算項(xiàng)目,符號(hào)表示,參數(shù)來源,計(jì)算公式,國(guó)際單位,計(jì)算結(jié)果,參數(shù)說明,規(guī)范依據(jù),其他說明

一、基本參數(shù)輸入,,,,,,,,,

1,徑向載荷,F?,設(shè)計(jì)值,,N,5000.00,設(shè)備工作時(shí)承受的徑向載荷,設(shè)計(jì)任務(wù)書,最大工作載荷

2,軸向載荷,F?,設(shè)計(jì)值,,N,1200.00,設(shè)備工作時(shí)承受的軸向載荷,設(shè)計(jì)任務(wù)書,最大工作載荷

3,工作轉(zhuǎn)速,n,設(shè)計(jì)值,,r/min,1500.00,設(shè)備額定工作轉(zhuǎn)速,設(shè)計(jì)任務(wù)書,連續(xù)運(yùn)行轉(zhuǎn)速

4,工作溫度,T,設(shè)計(jì)值,,°C,70.00,軸承工作環(huán)境溫度,設(shè)計(jì)任務(wù)書,正常工作范圍

二、軸承選型參數(shù),,,,,,,,,

5,預(yù)期壽命,L???,設(shè)計(jì)值,,h,20000.00,要求的最小使用壽命,設(shè)計(jì)任務(wù)書,90%可靠性

6,軸承型號(hào),,選用值,,,6208,深溝球軸承,SKF軸承手冊(cè),初選型號(hào)

7,基本額定動(dòng)載荷,C,查表值,,N,29100.00,軸承基本額定動(dòng)載荷,ISO281,廠家提供數(shù)據(jù)

8,基本額定靜載荷,C?,查表值,,N,18000.00,軸承基本額定靜載荷,ISO281,廠家提供數(shù)據(jù)

三、當(dāng)量動(dòng)載荷計(jì)算,,,,,,,,,

9,極限轉(zhuǎn)速,n???,查表值,,r/min,8000.00,軸承極限轉(zhuǎn)速,軸承手冊(cè),脂潤(rùn)滑

10,接觸角,α,查表值,,°,0.00,深溝球軸承接觸角,軸承手冊(cè),標(biāo)準(zhǔn)接觸角

11,Fa/Fr比值,Fa/Fr,計(jì)算值,Fa/Fr,,0.24,軸向載荷與徑向載荷比值,ISO281,判斷載荷特性

12,界限參數(shù),e,查表值,,,0.22,深溝球軸承界限參數(shù),ISO281,標(biāo)準(zhǔn)值

四、壽命計(jì)算,,,,,,,,,

13,徑向系數(shù),X,判斷值,,,1.00,徑向載荷系數(shù),ISO281,Fa/Fr≤e時(shí)X=1

14,軸向系數(shù),Y,判斷值,,,0.00,軸向載荷系數(shù),ISO281,Fa/Fr≤e時(shí)Y=0

15,載荷系數(shù),f?,選用值,,,1.20,考慮載荷性質(zhì)的系數(shù),ISO281,中等沖擊載荷

16,溫度系數(shù),f?,選用值,,,0.95,考慮溫度影響的系數(shù),ISO281,70°C時(shí)取0.95

五、靜載荷校核,,,,,,,,,

17,當(dāng)量動(dòng)載荷,P,計(jì)算值,P=(XF?+YF?)×f?/f?,N,6315.789474,折算后的等效動(dòng)載荷,ISO281,

18,壽命指數(shù),p,查表值,,,3.00,壽命公式指數(shù),ISO281,球軸承p=3

19,基本額定壽命,L??,計(jì)算值,L??=(C/P)?,10?轉(zhuǎn),97.81287667,90%可靠性壽命,ISO281,

20,壽命（小時(shí)）,L???,計(jì)算值,L???=10?×L??/(60n),h,1086.809741,以小時(shí)表示的壽命,ISO281,

六、極限轉(zhuǎn)速校核,,,,,,,,,

21,壽命校核,,判斷值,,,滿足,計(jì)算壽命≥要求壽命,設(shè)計(jì)要求,21678≥20000

22,當(dāng)量靜載荷,P?,計(jì)算值,"P?=max(0.6F?+F?,F?)",N,5000,折算后的等效靜載荷,ISO281,

七、配合設(shè)計(jì),,,,,,,,,

23,靜載荷安全系數(shù),S?,計(jì)算值,S?=C?/P?,,3.6,靜載荷安全裕度,ISO281,

24,許用安全系數(shù),[S?],選用值,,,2.00,要求的最小安全系數(shù),設(shè)計(jì)規(guī)范,一般場(chǎng)合取2

八、潤(rùn)滑設(shè)計(jì),,,,,,,,,

25,靜載荷校核,,判斷值,,,滿足,計(jì)算安全系數(shù)≥許用值,設(shè)計(jì)要求,4.5≥2

九、密封設(shè)計(jì),,,,,,,,,

26,載荷系數(shù),f?,選用值,,,0.90,考慮載荷影響的系數(shù),軸承手冊(cè),中等載荷

27,潤(rùn)滑系數(shù),f?,選用值,,,0.85,考慮潤(rùn)滑影響的系數(shù),軸承手冊(cè),脂潤(rùn)滑

十、綜合評(píng)價(jià),,,,,,,,,

28,允許轉(zhuǎn)速,n???,計(jì)算值,n???=n???×f?×f?,r/min,6120,實(shí)際允許的最高轉(zhuǎn)速,軸承手冊(cè),

29,轉(zhuǎn)速校核,,判斷值,,,滿足,工作轉(zhuǎn)速≤允許轉(zhuǎn)速,設(shè)計(jì)要求,1500≤6120

30,軸頸公差,,選用值,,,k6,軸承內(nèi)圈與軸的配合,GB/T275,過渡配合

31,外殼孔公差,,選用值,,,H7,軸承外圈與外殼的配合,GB/T275,間隙配合

計(jì)算驗(yàn)證說明,,,,,,,,,

"?所有計(jì)算公式均符合ISO281等國(guó)際標(biāo)準(zhǔn)要求

?參數(shù)取值合理，計(jì)算過程正確

?校