双悬臂门式起重机主梁制造上拱的计算  

Double Cantilever Gantry Crane Main Beam Manufacture Arch Calculation

作　　者：宋恒家 

机构地区：[1]太原重工股份有限公司技术中心起重所,山西太原030024

出　　处：《机械管理开发》2012年第2期61-62,64,共3页Mechanical Management and Development

摘　　要：门式起重机的门架在安装好以后,主梁要保证在跨中和悬臂端有规定的上拱值。如果主梁在地面制造时对主梁安装好以后的主梁自重产生的下挠估计不足,则主梁在安装好以后可能达不到规定的上拱度,这样门机就不能使用,后果严重。用计算方法算出主梁自重产生的下挠,以满足主梁在安装好以后上挠度达到规定要求,可供门机设计人员参考。Gantry crane in the door frame is installed, to ensure that the girder span and cantilever end are stipulated in the upper arch value. If the beam on the ground of main beam manufacture after mounting the girder deadweight＇s deflection is underestimated,girder in installed may not reach the specified camber, so the door machine can not use, serious consequences. This paper use the method to calculate the results of girder deadweight＇s deflection, in order to meet in the installed on main girder deflection meets the requirements.

关 键 词：双悬臂 自重挠度 制造上拱 

分 类 号：TH213.4[机械工程—机械制造及自动化]