文档介绍：本科毕业设计(论文)125/30t/22m六梁桥式铸造起重机结构设计摘要六梁铸造起重机是桥式起重机的重要组成部分,是中大型起重设备,由四根主梁和两根端梁组成。本设计采用偏轨箱型主梁,设计过程中从强度、刚度、稳定性三个方面来计算,对于A8工作级别的起重机来说还要进行疲劳强度校核,这就和A6以下工作级别的起重机的设计有了很大的区别,在设计时会出现静强度有很大的富余,在计算局部稳定性的时候还要注意局部轮压的作用,这时候需要验算加劲肋的区格验算,很有可能需要再次验算。设计中在满足刚度、强度、稳定性的前提下,探讨了该机型金属结构受力的空间传递分配规律,推导出内力计算公式。本文针对空间桥架内力的传递进行探讨,在一定假定条件下,得出主、副梁及主、副端梁间的传递规律。关键词:铸造起重机应力疲劳强度稳定性AbstractSix-ponentofthebridgecrane,theliftingequipmentismediumandlarge,-railbox-typemaingirder,thedesignprocessfromthestrength,stiffness,stability,tocalculatethethreeaspects,fortheA8-levelworkcraneisalsocheckingforfatiguestrength,ThisandthefollowingA6-leveldesignofthecranehasthedistinction,inthedesignofstaticstrengthandtherewillbeagreatsurplus,Localstabilityinthecalculationofthetimewemustpayattentiontotheroleofthelocalroundofpressure,thistimeneedtochecktheareastiffeningribgridchecked,,strength,stability,,thespacebridgetoexplorethetransmissionofinternalforces,undercertainassumptions,themaindraw,themainbeamsandtheDeputy,Vice-:castingcrane,stress,fatiguestrength,stability目录摘要…………………………………………………………………………………………Ⅳ前言…………………………………………………………………………………………Ⅴ总体方案设计………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………6第二章桥架分析………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………