齒輪傳動(dòng)1

1、附：標(biāo)準(zhǔn)直齒圓柱齒輪幾何尺寸計(jì)算公式附：標(biāo)準(zhǔn)直齒圓柱齒輪幾何尺寸計(jì)算公式計(jì)算公式計(jì)算公式名稱(chēng)名稱(chēng)代號(hào)代號(hào)小齒輪小齒輪大齒輪大齒輪模數(shù)模數(shù)m根據(jù)齒輪受力情況和結(jié)構(gòu)要求確定，選取標(biāo)準(zhǔn)值壓力角壓力角?選取標(biāo)準(zhǔn)值分度圓直徑分度圓直徑d11mzd?22mzd?齒頂高齒頂高ahmhhhaaa???21齒根高齒根高fh??mchhhaff?????21齒全高齒全高h(yuǎn)??mchhha?????221齒頂圓直徑齒頂圓直徑admhzhddaaa)2(211

2、11?????mhzhddaaa)2(22222?????齒根圓直徑齒根圓直徑fd??mchzhfddaf???????221111??mchzhfddaf???????222222基圓直徑基圓直徑bd?cos11ddb??cos22ddb?周節(jié)周節(jié)pmp??基（法）節(jié)基（法）節(jié)bp?cosppb?分度圓齒厚分度圓齒厚s2ms??分度圓齒間分度圓齒間寬e2me??公法線長(zhǎng)度公法線長(zhǎng)度W???????????????????tgzkmsp

3、kWbb5.0cos1跨齒數(shù)跨齒數(shù)k5.0110.1205.0180?????zkzk時(shí)，闊；當(dāng)???節(jié)圓直徑節(jié)圓直徑d標(biāo)準(zhǔn)安裝時(shí)，dd?傳動(dòng)比傳動(dòng)比i1212122112zzddddibb??????標(biāo)準(zhǔn)中心距標(biāo)準(zhǔn)中心距a????222121zzmdda????頂隙頂隙cmcc????aHHNHMPSK5.52255095.02lim22???????（2）、計(jì)算：、計(jì)算：①、計(jì)算小齒輪分度圓直徑:td1②、??mmZuuTKdHEd

4、tt396.655.5228.1892.32.4110948.93.132.2132.232432211???????????????????????????計(jì)算圓周速度:smndv29.3100060960396.6510006011?????????③、齒寬：bmmdbtd396.65396.6511??????④、齒寬與齒高之比：bh模數(shù)：mmmzdmtt725.224396.6511???齒高：hmmmht13.6725.225

5、.225.2????∴67.1013.6396.65??hb⑤、計(jì)算載荷系數(shù)：由，7級(jí)精度，由圖108，查得動(dòng)載荷系數(shù)；直齒輪，假設(shè)smv29.3?12.1?VK。由表103，查得；由表102，查得使用系數(shù)；mNbFKtA100?2.1????FHKK1?AK由表104查得7級(jí)精度，小齒輪相對(duì)支承非對(duì)稱(chēng)布置時(shí)，423.1396.651023.01)16.01(18.01.11023.0)6.01(18.012.13322????????

6、????????bKddH???由，，查圖1013，得；67.10?hb423.1??HK35.1??FK故得，載荷系數(shù)：913.1423.12.112.11????????HHVAKKKKK⑥、按實(shí)際的載荷系數(shù)校正所算得的分度圓直徑，由式1010a，得：mmKKddtt38.743.1913.1396.653311?????⑦、計(jì)算模數(shù)：m，取標(biāo)準(zhǔn)模數(shù)為。mmzdm10.32438.7411???mmm5.3?3、校核齒根彎曲疲勞強(qiáng)度